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1

Standardizing Naming Conventions in Radiation Oncology  

Science Conference Proceedings (OSTI)

Purpose: The aim of this study was to report on the development of a standardized target and organ-at-risk naming convention for use in radiation therapy and to present the nomenclature for structure naming for interinstitutional data sharing, clinical trial repositories, integrated multi-institutional collaborative databases, and quality control centers. This taxonomy should also enable improved plan benchmarking between clinical institutions and vendors and facilitation of automated treatment plan quality control. Materials and Methods: The Advanced Technology Consortium, Washington University in St. Louis, Radiation Therapy Oncology Group, Dutch Radiation Oncology Society, and the Clinical Trials RT QA Harmonization Group collaborated in creating this new naming convention. The International Commission on Radiation Units and Measurements guidelines have been used to create standardized nomenclature for target volumes (clinical target volume, internal target volume, planning target volume, etc.), organs at risk, and planning organ-at-risk volumes in radiation therapy. The nomenclature also includes rules for specifying laterality and margins for various structures. The naming rules distinguish tumor and nodal planning target volumes, with correspondence to their respective tumor/nodal clinical target volumes. It also provides rules for basic structure naming, as well as an option for more detailed names. Names of nonstandard structures used mainly for plan optimization or evaluation (rings, islands of dose avoidance, islands where additional dose is needed [dose painting]) are identified separately. Results: In addition to its use in 16 ongoing Radiation Therapy Oncology Group advanced technology clinical trial protocols and several new European Organization for Research and Treatment of Cancer protocols, a pilot version of this naming convention has been evaluated using patient data sets with varying treatment sites. All structures in these data sets were satisfactorily identified using this nomenclature. Conclusions: Use of standardized naming conventions is important to facilitate comparison of dosimetry across patient datasets. The guidelines presented here will facilitate international acceptance across a wide range of efforts, including groups organizing clinical trials, Radiation Oncology Institute, Dutch Radiation Oncology Society, Integrating the Healthcare Enterprise, Radiation Oncology domain (IHE-RO), and Digital Imaging and Communication in Medicine (DICOM).

Santanam, Lakshmi [Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO (United States); Hurkmans, Coen [Department of Radiation Oncology, Catharina Hospital, Eindhoven (Netherlands); Mutic, Sasa [Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO (United States); Vliet-Vroegindeweij, Corine van [Department of Radiation Oncology, Thomas Jefferson University Hospital, Philadelphia, PA (United States); Brame, Scott; Straube, William [Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO (United States); Galvin, James [Department of Radiation Oncology, Thomas Jefferson University Hospital, Philadelphia, PA (United States); Tripuraneni, Prabhakar [Department of Radiation Oncology, Scripps Clinic, LaJolla, CA (United States); Michalski, Jeff [Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO (United States); Bosch, Walter, E-mail: wbosch@radonc.wustl.edu [Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO (United States); Advanced Technology Consortium, Image-guided Therapy QA Center, St. Louis, MO (United States)

2012-07-15T23:59:59.000Z

2

Radiation Oncology in Undergraduate Medical Education: A Literature Review  

Science Conference Proceedings (OSTI)

Purpose: To review the published literature pertaining to radiation oncology in undergraduate medical education. Methods and Materials: Ovid MEDLINE, Ovid MEDLINE Daily Update and EMBASE databases were searched for the 11-year period of January 1, 1998, through the last week of March 2009. A medical librarian used an extensive list of indexed subject headings and text words. Results: The search returned 640 article references, but only seven contained significant information pertaining to teaching radiation oncology to medical undergraduates. One article described a comprehensive oncology curriculum including recommended radiation oncology teaching objectives and sample student evaluations, two described integrating radiation oncology teaching into a radiology rotation, two described multidisciplinary anatomy-based courses intended to reinforce principles of tumor biology and radiotherapy planning, one described an exercise designed to test clinical reasoning skills within radiation oncology cases, and one described a Web-based curriculum involving oncologic physics. Conclusions: To the authors' knowledge, this is the first review of the literature pertaining to teaching radiation oncology to medical undergraduates, and it demonstrates the paucity of published work in this area of medical education. Teaching radiation oncology should begin early in the undergraduate process, should be mandatory for all students, and should impart knowledge relevant to future general practitioners rather than detailed information relevant only to oncologists. Educators should make use of available model curricula and should integrate radiation oncology teaching into existing curricula or construct stand-alone oncology rotations where the principles of radiation oncology can be conveyed. Assessments of student knowledge and curriculum effectiveness are critical.

Dennis, Kristopher E.B., E-mail: kdennis@bccancer.bc.c [Radiation Oncology Program, British Columbia Cancer Agency, Vancouver, British Columbia (Canada); Duncan, Graeme [Radiation Oncology Program, British Columbia Cancer Agency, Vancouver, British Columbia (Canada)

2010-03-01T23:59:59.000Z

3

2009 Canadian Radiation Oncology Resident Survey  

SciTech Connect

Purpose: Statistics from the Canadian post-MD education registry show that numbers of Canadian radiation oncology (RO) trainees have risen from 62 in 1999 to approximately 150 per year between 2003 and 2009, contributing to the current perceived downturn in employment opportunities for radiation oncologists in Canada. When last surveyed in 2003, Canadian RO residents identified job availability as their main concern. Our objective was to survey current Canadian RO residents on their training and career plans. Methods and Materials: Trainees from the 13 Canadian residency programs using the national matching service were sought. Potential respondents were identified through individual program directors or chief resident and were e-mailed a secure link to an online survey. Descriptive statistics were used to report responses. Results: The eligible response rate was 53% (83/156). Similar to the 2003 survey, respondents generally expressed high satisfaction with their programs and specialty. The most frequently expressed perceived weakness in their training differed from 2003, with 46.5% of current respondents feeling unprepared to enter the job market. 72% plan on pursuing a postresidency fellowship. Most respondents intend to practice in Canada. Fewer than 20% of respondents believe that there is a strong demand for radiation oncologists in Canada. Conclusions: Respondents to the current survey expressed significant satisfaction with their career choice and training program. However, differences exist compared with the 2003 survey, including the current perceived lack of demand for radiation oncologists in Canada.

Debenham, Brock, E-mail: debenham@ualberta.net [Department of Radiation Oncology, Cross Cancer Institute, University of Alberta, Edmonton, Alberta (Canada); Banerjee, Robyn [Department of Radiation Oncology, Tom Baker Cancer Centre, University of Calgary, Calgary, Alberta (Canada); Fairchild, Alysa; Dundas, George [Department of Radiation Oncology, Cross Cancer Institute, University of Alberta, Edmonton, Alberta (Canada); Trotter, Theresa [Department of Radiation Oncology, Tom Baker Cancer Centre, University of Calgary, Calgary, Alberta (Canada); Yee, Don [Department of Radiation Oncology, Cross Cancer Institute, University of Alberta, Edmonton, Alberta (Canada)

2012-03-15T23:59:59.000Z

4

The American Society for Radiation Oncology's 2010 Core Physics Curriculum for Radiation Oncology Residents  

SciTech Connect

Purpose: In 2004, the American Society for Radiation Oncology (ASTRO) published its first physics education curriculum for residents, which was updated in 2007. A committee composed of physicists and physicians from various residency program teaching institutions was reconvened again to update the curriculum in 2009. Methods and Materials: Members of this committee have associations with ASTRO, the American Association of Physicists in Medicine, the Association of Residents in Radiation Oncology, the American Board of Radiology (ABR), and the American College of Radiology. Members reviewed and updated assigned subjects from the last curriculum. The updated curriculum was carefully reviewed by a representative from the ABR and other physics and clinical experts. Results: The new curriculum resulted in a recommended 56-h course, excluding initial orientation. Learning objectives are provided for each subject area, and a detailed outline of material to be covered is given for each lecture hour. Some recent changes in the curriculum include the addition of Radiation Incidents and Bioterrorism Response Training as a subject and updates that reflect new treatment techniques and modalities in a number of core subjects. The new curriculum was approved by the ASTRO board in April 2010. We anticipate that physicists will use this curriculum for structuring their teaching programs, and subsequently the ABR will adopt this educational program for its written examination. Currently, the American College of Radiology uses the ASTRO curriculum for their training examination topics. In addition to the curriculum, the committee updated suggested references and the glossary. Conclusions: The ASTRO physics education curriculum for radiation oncology residents has been updated. To ensure continued commitment to a current and relevant curriculum, the subject matter will be updated again in 2 years.

Xiao Ying, E-mail: ying.xiao@jefferson.edu [Thomas Jefferson University Hospital, Philadelphia, PA (United States); De Amorim Bernstein, Karen [Montefiore Medical Center, Bronx, NY (United States); Chetty, Indrin J. [Henry Ford Health System, Detroit, MI (United States); Eifel, Patricia [M. D. Anderson Cancer Center, Houston, TX (United States); Hughes, Lesley [Cooper University Hospital, Camden, NJ (United States); Klein, Eric E. [Washington University, Saint Louis, MO (United States); McDermott, Patrick [William Beaumont Hospital, Royal Oak, MI (United States); Prisciandaro, Joann [University of Michigan, Ann Arbor, MI (United States); Paliwal, Bhudatt [University of Wisconsin, Madison, WI (United States); Price, Robert A. [Fox Chase Cancer Center, Philadelphia, PA (United States); Werner-Wasik, Maria [Thomas Jefferson University Hospital, Philadelphia, PA (United States); Palta, Jatinder R. [University of Florida, Gainesville, FL (United States)

2011-11-15T23:59:59.000Z

5

Geographic Analysis of the Radiation Oncology Workforce  

Science Conference Proceedings (OSTI)

Purpose: To evaluate trends in the geographic distribution of the radiation oncology (RO) workforce. Methods and Materials: We used the 1995 and 2007 versions of the Area Resource File to map the ratio of RO to the population aged 65 years or older (ROR) within different health service areas (HSA) within the United States. We used regression analysis to find associations between population variables and 2007 ROR. We calculated Gini coefficients for ROR to assess the evenness of RO distribution and compared that with primary care physicians and total physicians. Results: There was a 24% increase in the RO workforce from 1995 to 2007. The overall growth in the RO workforce was less than that of primary care or the overall physician workforce. The mean ROR among HSAs increased by more than one radiation oncologist per 100,000 people aged 65 years or older, from 5.08 per 100,000 to 6.16 per 100,000. However, there remained consistent geographic variability concerning RO distribution, specifically affecting the non-metropolitan HSAs. Regression analysis found higher ROR in HSAs that possessed higher education (p = 0.001), higher income (p rates (p < 0.001), and higher minority population (p = 0.022). Gini coefficients showed RO distribution less even than for both primary care physicians and total physicians (0.326 compared with 0.196 and 0.292, respectively). Conclusions: Despite a modest growth in the RO workforce, there exists persistent geographic maldistribution of radiation oncologists allocated along socioeconomic and racial lines. To solve problems surrounding the RO workforce, issues concerning both gross numbers and geographic distribution must be addressed.

Aneja, Sanjay [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, CT (United States); Cancer Outcomes, Policy, and Effectiveness Research Center at Yale, New Haven, CT (United States); Smith, Benjamin D. [University of Texas M. D. Anderson Cancer Center, Houston, TX (United States); Gross, Cary P. [Cancer Outcomes, Policy, and Effectiveness Research Center at Yale, New Haven, CT (United States); Department of General Internal Medicine, Yale University School of Medicine, New Haven, CT (United States); Wilson, Lynn D. [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, CT (United States); Haffty, Bruce G. [Cancer Institute of New Jersey, New Brunswick, NJ (United States); Roberts, Kenneth [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, CT (United States); Yu, James B., E-mail: james.b.yu@yale.edu [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, CT (United States); Cancer Outcomes, Policy, and Effectiveness Research Center at Yale, New Haven, CT (United States)

2012-04-01T23:59:59.000Z

6

Results of the Association of Directors of Radiation Oncology Programs (ADROP) Survey of Radiation Oncology Residency Program Directors  

Science Conference Proceedings (OSTI)

Purpose: To survey the radiation oncology residency program directors on the topics of departmental and institutional support systems, residency program structure, Accreditation Council for Graduate Medical Education (ACGME) requirements, and challenges as program director. Methods: A survey was developed and distributed by the leadership of the Association of Directors of Radiation Oncology Programs to all radiation oncology program directors. Summary statistics, medians, and ranges were collated from responses. Results: Radiation oncology program directors had implemented all current required aspects of the ACGME Outcome Project into their training curriculum. Didactic curricula were similar across programs nationally, but research requirements and resources varied widely. Program directors responded that implementation of the ACGME Outcome Project and the external review process were among their greatest challenges. Protected time was the top priority for program directors. Conclusions: The Association of Directors of Radiation Oncology Programs recommends that all radiation oncology program directors have protected time and an administrative stipend to support their important administrative and educational role. Departments and institutions should provide adequate and equitable resources to the program directors and residents to meet increasingly demanding training program requirements.

Harris, Eleanor [Department of Radiation Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL (United States)], E-mail: Eleanor.Harris@moffitt.org; Abdel-Wahab, May [Department of Radiation Oncology, University of Miami, Miami, FL (United States); Spangler, Ann E. [Moncrief Radiation Oncology Center, University of Texas Southwestern Medical Center, Dallas, TX (United States); Lawton, Colleen A. [Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI (United States); Amdur, Robert J. [Department of Radiation Oncology, University of Florida Shands Cancer Center, Gainesville, FL (United States)

2009-06-01T23:59:59.000Z

7

Low Dose Radiation Research Program: Universities  

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Universities Universities | Duke University | Loma Linda University | Northwestern University | University of Chicago | University of California Davis | Northwestern University University of Chicago University of California Davis Effects of Low Dose Irradiation on NF-κB Signaling Networks and Mitochondria Principal Investigator: Dr. Gayle Woloschak DOE Low Dose Research Program Projects Low dose-low dose rate irradiation leads to long term changes in numbers of mitochondria and mitochondrial genomes - Principal Investigator: Gayle Woloschak, Professor, Department of Radiation Oncology, Northwestern University, Chicago, IL, USA NF-κB-mediated pro-survival network in low dose radiation-induced adaptive protection - Principal Investigator: Jian Jian Li, Professor, Department of Radiation Oncology, University of California Davis, Davis,

8

ASTRO's core physics curriculum for radiation oncology residents  

Science Conference Proceedings (OSTI)

In 2002, the Radiation Physics Committee of the American Society of Therapeutic Radiology and Oncology (ASTRO) appointed an Ad-hoc Committee on Physics Teaching to Medical Residents. The main initiative of the committee was to develop a core curriculum for physics education. Prior publications that have analyzed physics teaching have pointed to wide discrepancies among teaching programs. The committee was composed of physicists or physicians from various residency program based institutions. Simultaneously, members had associations with the American Association of Physicists in Medicine (AAPM), ASTRO, Association of Residents in Radiation Oncology (ARRO), American Board of Radiology (ABR), and the American College of Radiology (ACR). The latter two organizations' representatives were on the physics examination committees, as one of the main agendas was to provide a feedback loop between the examining organizations and ASTRO. The document resulted in a recommended 54-h course. Some of the subjects were based on American College of Graduate Medical Education (ACGME) requirements (particles, hyperthermia), whereas the majority of the subjects along with the appropriated hours per subject were devised and agreed upon by the committee. For each subject there are learning objectives and for each hour there is a detailed outline of material to be covered. Some of the required subjects/h are being taught in most institutions (i.e., Radiation Measurement and Calibration for 4 h), whereas some may be new subjects (4 h of Imaging for Radiation Oncology). The curriculum was completed and approved by the ASTRO Board in late 2003 and is slated for dissemination to the community in 2004. It is our hope that teaching physicists will adopt the recommended curriculum for their classes, and simultaneously that the ABR for its written physics examination and the ACR for its training examination will use the recommended curriculum as the basis for subject matter and depth of understanding. To ensure that the subject matter and emphasis remain current and relevant, the curriculum will be updated every 2 years.

Klein, Eric E. [Washington University, St. Louis, MO (United States)]. E-mail: klein@radonc.wustl.edu; Balter, James M. [University of Michigan, Ann Arbor, MI (United States); Chaney, Edward L. [University of North Carolina, Chapel Hill, NC (United States); Gerbi, Bruce J. [University of Minnesota, Minneapolis, MN (United States); Hughes, Lesley [Drexel University, Philadelphia, PA (United States)

2004-11-01T23:59:59.000Z

9

ASTRO's 2007 Core Physics Curriculum for Radiation Oncology Residents  

SciTech Connect

In 2004, American Society for Therapeutic Radiology and Oncology (ASTRO) published a curriculum for physics education. The document described a 54-hour course. In 2006, the committee reconvened to update the curriculum. The committee is composed of physicists and physicians from various residency program teaching institutions. Simultaneously, members have associations with American Association of Physicists in Medicine, ASTRO, Association of Residents in Radiation Oncology, American Board of Radiology, and American College of Radiology. Representatives from the latter two organizations are key to provide feedback between the examining organizations and ASTRO. Subjects are based on Accreditation Council for Graduate Medical Education requirements (particles and hyperthermia), whereas the majority of subjects and appropriated hours/subject were developed by consensus. The new curriculum is 55 hours, containing new subjects, redistribution of subjects with updates, and reorganization of core topics. For each subject, learning objectives are provided, and for each lecture hour, a detailed outline of material to be covered is provided. Some changes include a decrease in basic radiologic physics, addition of informatics as a subject, increase in intensity-modulated radiotherapy, and migration of some brachytherapy hours to radiopharmaceuticals. The new curriculum was approved by the ASTRO board in late 2006. It is hoped that physicists will adopt the curriculum for structuring their didactic teaching program, and simultaneously, American Board of Radiology, for its written examination. American College of Radiology uses the ASTRO curriculum for their training examination topics. In addition to the curriculum, the committee added suggested references, a glossary, and a condensed version of lectures for a Postgraduate Year 2 resident physics orientation. To ensure continued commitment to a current and relevant curriculum, subject matter will be updated again in 2 years.

Klein, Eric E. [Washington University, St. Louis, MO (United States)]. E-mail: eklein@radonc.wustl.edu; Gerbi, Bruce J. [University of Minnesota, Minneapolis, MN (United States); Price, Robert A. [Fox Chase Cancer Center, Philadelphia, PA (United States); Balter, James M. [University of Michigan, Ann Arbor, MI (United States); Paliwal, Bhudatt [University of Wisconsin, Madison, WI (United States); Hughes, Lesley [Saint Joseph Medical Center, Reading, PA (United States); Huang, Eugene [MD Anderson Cancer Center, Houston, TX (United States)

2007-08-01T23:59:59.000Z

10

American College of Radiology In-Training Examination for Residents in Radiation Oncology (2004-2007)  

Science Conference Proceedings (OSTI)

Purpose: To review the results of the recent American College of Radiology (ACR) in-training examinations in radiation oncology and to provide information regarding the examination changes in recent years. Methods and Materials: A retrospective review of the 2004 to 2007 ACR in-training examination was undertaken. Results: The number of residents taking the in-training examination increased from 2004 to 2007, compatible with the increase in the number of radiation oncology residents in the United States and Canada. The number of questions decreased from approximately 510 in 2004 and 2005, to 405 in 2006 and 360 in 2007, most of these changes were in the clinical oncology section. Although the in-training examination showed construct validity with resident performance improving with each year of additional clinical oncology training, it did so only until Level 3 for biology and physics. Several changes have been made to the examination process, including allowing residents to keep the examination booklet for self-study, posting of the answer key and rationales to questions on the ACR Website, and providing hard copies to residency training directors. In addition, all questions are now A type or multiple choice questions with one best answer, similar to the American Board of Radiology written examination for radiation oncology. Conclusion: Several efforts by the ACR have been made in recent years to make the examination an educational tool for radiation oncology residents and residency directors.

Paulino, Arnold C. [Department of Radiology, Division of Radiation Oncology, Baylor College of Medicine and Methodist Hospital, Houston, TX (United States)], E-mail: apaulino@tmhs.org; Kurtz, Elizabeth [Educational Services Division, American College of Radiology, Reston, VA (United States)

2008-03-01T23:59:59.000Z

11

Results of the 2004 Association of Residents in Radiation Oncology (ARRO) Survey  

Science Conference Proceedings (OSTI)

Purpose: The aim of this study was to document adequacy of training, career plans after residency, use of the in-service examination, and motivation for choice of radiation oncology as a specialty. Methods and Materials: In 2004, the Association of Residents in Radiation Oncology (ARRO) conducted a nationwide survey of all radiation oncology residents in the United States. Results: The survey was returned by 297 residents (response rate, 54%). Of the respondents, 29% were female and 71% male. The most popular career choice was joining an established private practice (38%), followed by a permanent academic career (29%). Residents for whom a permanent academic career was not their first choice were asked whether improvements in certain areas would have led them to be more likely to pursue an academic career. The most commonly chosen factors that would have had a strong or moderate influence included higher salary (81%), choice of geographic location (76%), faculty encouragement (68%), and less time commitment (68%). Of respondents in the first 3 years of training, 78% believed that they had received adequate training to proceed to the next level of training. Of those in their fourth year of training, 75% believed that they had received adequate training to enter practice. Conclusions: Multiple factors affect the educational environment of physicians in training. Data describing concerns unique to resident physicians in radiation oncology are limited. The current survey was designed to explore a variety of issues confronting radiation oncology residents. Training programs and the Residency Review Committee should consider these results when developing new policies to improve the educational experiences of residents in radiation oncology.

Patel, Shilpen [University of Maryland, Baltimore, MD (United States)]. E-mail: spatel@umm.edu; Jagsi, Reshma [Massachusetts General Hospital, Boston, MA (United States); Wilson, John [University of Pennsylvania, Philadelphia, PA (United States); Frank, Steven [University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Thakkar, Vipul V. [Cleveland Clinic, Cleveland, OH (United States); Hansen, Eric K. [University of California San Francisco, San Francisco, CA (United States)

2006-11-15T23:59:59.000Z

12

Assessing the Value of an Optional Radiation Oncology Clinical Rotation During the Core Clerkships in Medical School  

Science Conference Proceedings (OSTI)

Purpose: Few medical students are given proper clinical training in oncology, much less radiation oncology. We attempted to assess the value of adding a radiation oncology clinical rotation to the medical school curriculum. Methods and Materials: In July 2010, Jefferson Medical College began to offer a 3-week radiation oncology rotation as an elective course for third-year medical students during the core surgical clerkship. During 2010 to 2012, 52 medical students chose to enroll in this rotation. The rotation included outpatient clinics, inpatient consults, didactic sessions, and case-based presentations by the students. Tests of students' knowledge of radiation oncology were administered anonymously before and after the rotation to evaluate the educational effectiveness of the rotation. Students and radiation oncology faculty were given surveys to assess feedback about the rotation. Results: The students' prerotation test scores had an average of 64% (95% confidence interval [CI], 61-66%). The postrotation test scores improved to an average of 82% (95% CI, 80-83%; 18% absolute improvement). In examination question analysis, scores improved in clinical oncology from 63% to 79%, in radiobiology from 70% to 77%, and in medical physics from 62% to 88%. Improvements in all sections but radiobiology were statistically significant. Students rated the usefulness of the rotation as 8.1 (scale 1-9; 95% CI, 7.3-9.0), their understanding of radiation oncology as a result of the rotation as 8.8 (95% CI, 8.5-9.1), and their recommendation of the rotation to a classmate as 8.2 (95% CI, 7.6-9.0). Conclusions: Integrating a radiation oncology clinical rotation into the medical school curriculum improves student knowledge of radiation oncology, including aspects of clinical oncology, radiobiology, and medical physics. The rotation is appreciated by both students and faculty.

Zaorsky, Nicholas G.; Malatesta, Theresa M.; Den, Robert B.; Wuthrick, Evan; Ahn, Peter H.; Werner-Wasik, Maria; Shi, Wenyin; Dicker, Adam P.; Anne, P. Rani; Bar-Ad, Voichita [Department of Radiation Oncology, Jefferson Medical College, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA (United States); Showalter, Timothy N., E-mail: timothy.showalter@jeffersonhospital.org [Department of Radiation Oncology, Jefferson Medical College, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA (United States)

2012-07-15T23:59:59.000Z

13

Pelvic Normal Tissue Contouring Guidelines for Radiation Therapy: A Radiation Therapy Oncology Group Consensus Panel Atlas  

Science Conference Proceedings (OSTI)

Purpose: To define a male and female pelvic normal tissue contouring atlas for Radiation Therapy Oncology Group (RTOG) trials. Methods and Materials: One male pelvis computed tomography (CT) data set and one female pelvis CT data set were shared via the Image-Guided Therapy QA Center. A total of 16 radiation oncologists participated. The following organs at risk were contoured in both CT sets: anus, anorectum, rectum (gastrointestinal and genitourinary definitions), bowel NOS (not otherwise specified), small bowel, large bowel, and proximal femurs. The following were contoured in the male set only: bladder, prostate, seminal vesicles, and penile bulb. The following were contoured in the female set only: uterus, cervix, and ovaries. A computer program used the binomial distribution to generate 95% group consensus contours. These contours and definitions were then reviewed by the group and modified. Results: The panel achieved consensus definitions for pelvic normal tissue contouring in RTOG trials with these standardized names: Rectum, AnoRectum, SmallBowel, Colon, BowelBag, Bladder, UteroCervix, Adnexa{sub R}, Adnexa{sub L}, Prostate, SeminalVesc, PenileBulb, Femur{sub R}, and Femur{sub L}. Two additional normal structures whose purpose is to serve as targets in anal and rectal cancer were defined: AnoRectumSig and Mesorectum. Detailed target volume contouring guidelines and images are discussed. Conclusions: Consensus guidelines for pelvic normal tissue contouring were reached and are available as a CT image atlas on the RTOG Web site. This will allow uniformity in defining normal tissues for clinical trials delivering pelvic radiation and will facilitate future normal tissue complication research.

Gay, Hiram A., E-mail: hgay@radonc.wustl.edu [Washington University School of Medicine, St Louis, MO (United States); Barthold, H. Joseph [Commonwealth Hematology and Oncology, Weymouth, MA (United States); Beth Israel Deaconess Medical Center, Boston, MA (Israel); O'Meara, Elizabeth [Radiation Therapy Oncology Group, Philadelphia, PA (United States); Bosch, Walter R. [Washington University School of Medicine, St Louis, MO (United States); El Naqa, Issam [Department of Radiation Oncology, McGill University Health Center, Montreal, Quebec (Canada); Al-Lozi, Rawan [Washington University School of Medicine, St Louis, MO (United States); Rosenthal, Seth A. [Radiation Oncology Centers, Radiological Associates of Sacramento, Sacramento, CA (United States); Lawton, Colleen [Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI (United States); Lee, W. Robert [Department of Radiation Oncology, Duke University Medical Center, Durham, NC (United States); Sandler, Howard [Cedars-Sinai Medical Center, Los Angeles, CA (United States); Zietman, Anthony [Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA (United States); Myerson, Robert [Washington University School of Medicine, St Louis, MO (United States); Dawson, Laura A. [Department of Radiation Oncology, Princess Margaret Hospital, University of Toronto, Toronto, Ontario (Canada); Willett, Christopher [Department of Radiation Oncology, Duke University Medical Center, Durham, NC (United States); Kachnic, Lisa A. [Department of Radiation Oncology, Boston Medical Center, Boston University School of Medicine, Boston, MA (United States); Jhingran, Anuja [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, TX (United States); Portelance, Lorraine [University of Miami, Miami, FL (United States); Ryu, Janice [Radiation Oncology Centers, Radiological Associates of Sacramento, Sacramento, CA (United States); and others

2012-07-01T23:59:59.000Z

14

Oak Rigde Associated Universities (ORAU) Radiation Emergency...  

NLE Websites -- All DOE Office Websites (Extended Search)

Oak Rigde Associated Universities (ORAU) Radiation Emergency Assistance CenterTraining Site (REACTS), ORAU Director Oak Rigde Associated Universities (ORAU) Radiation Emergency...

15

Radiation oncology career decision variables for graduating trainees seeking positions in 2003-2004  

SciTech Connect

Purpose: Radiation oncology trainees must consider an array of variables when deciding upon an academic or private practice career path. This prospective evaluation of the 2004 graduating radiation oncology trainees, evaluates such variables and provides additional descriptive data. Methods: A survey that included 15 questions (one subjective, eleven categorical, and 3 continuous variables) was mailed to the 144 graduating radiation oncology trainees in United States programs in January of 2004. Questions were designed to gather information regarding factors that may have influenced career path choices. The responses were anonymous, and no identifying information was sought. Survey data were collated and analyzed for differences in both categorical and continuous variables as they related to choice of academic or private practice career path. Results: Sixty seven (47%) of the surveys were returned. Forty-five percent of respondents indicated pursuit of an academic career. All respondents participated in research during training with 73% participating in research publication authorship. Post graduate year-3 was the median in which career path was chosen, and 20% thought that a fellowship position was 'perhaps' necessary to secure an academic position. Thirty percent of the respondents revealed that the timing of the American Board of Radiology examination influenced their career path decision. Eighteen variables were offered as possibly influencing career path choice within the survey, and the top five identified by those seeking an academic path were: (1) colleagues, (2) clinical research, (3) teaching, (4) geography, (5) and support staff. For those seeking private practice, the top choices were: (1) lifestyle, (2) practice environment, (3) patient care, (4) geography, (5) colleagues. Female gender (p = 0.064), oral meeting presentation (p = 0.053), and international meeting presentation (p 0.066) were the variables most significantly associated with pursuing an academic career path. The following variables were ranked significantly differently in hierarchy (p < 0.05) by those seeking an academic versus private practice path with respect to having influence on the career decision: lifestyle, income, case-mix, autonomy, ability to sub-specialize, basic research, clinical research, teaching, patient care, board structure, practice environment, and mentoring. Conclusion: These data offer descriptive information regarding variables that lead to radiation oncology trainee career path decisions. Such information may be of use in modification of training programs to meet future personnel and programmatic needs within the specialty.

Wilson, Lynn D. [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, CT (United States)]. E-mail: lynn.wilson@yale.edu; Flynn, Daniel F. [Department of Radiation Oncology, Holy Family Hospital, Methuen, MA (United States); Haffty, Bruce G. [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, CT (United States)

2005-06-01T23:59:59.000Z

16

Patient-Physician Communication About Complementary and Alternative Medicine in a Radiation Oncology Setting  

Science Conference Proceedings (OSTI)

Purpose: Despite the extensive use of complementary and alternative medicine (CAM) among cancer patients, patient-physician communication regarding CAM therapies remains limited. This study quantified the extent of patient-physician communication about CAM and identified factors associated with its discussion in radiation therapy (RT) settings. Methods and Materials: We conducted a cross-sectional survey of 305 RT patients at an urban academic cancer center. Patients with different cancer types were recruited in their last week of RT. Participants self-reported their demographic characteristics, health status, CAM use, patient-physician communication regarding CAM, and rationale for/against discussing CAM therapies with physicians. Multivariate logistic regression was used to identify relationships between demographic/clinical variables and patients' discussion of CAM with radiation oncologists. Results: Among the 305 participants, 133 (43.6%) reported using CAM, and only 37 (12.1%) reported discussing CAM therapies with their radiation oncologists. In multivariate analyses, female patients (adjusted odds ratio [AOR] 0.45, 95% confidence interval [CI] 0.21-0.98) and patients with full-time employment (AOR 0.32, 95% CI 0.12-0.81) were less likely to discuss CAM with their radiation oncologists. CAM users (AOR 4.28, 95% CI 1.93-9.53) were more likely to discuss CAM with their radiation oncologists than were non-CAM users. Conclusions: Despite the common use of CAM among oncology patients, discussions regarding these treatments occur rarely in the RT setting, particularly among female and full-time employed patients. Clinicians and patients should incorporate discussions of CAM to guide its appropriate use and to maximize possible benefit while minimizing potential harm.

Ge Jin [Perelman School of Medicine at University of Pennsylvania, University of Pennsylvania Health System, Philadelphia, Pennsylvania (United States)] [Perelman School of Medicine at University of Pennsylvania, University of Pennsylvania Health System, Philadelphia, Pennsylvania (United States); Fishman, Jessica [Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania Health System, Philadelphia, Pennsylvania (United States) [Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania Health System, Philadelphia, Pennsylvania (United States); Annenberg School for Communication at University of Pennsylvania, University of Pennsylvania Health System, Philadelphia, Pennsylvania (United States); Vapiwala, Neha [Abramson Comprehensive Cancer Center, University of Pennsylvania Health System, Philadelphia, Pennsylvania (United States) [Abramson Comprehensive Cancer Center, University of Pennsylvania Health System, Philadelphia, Pennsylvania (United States); Department of Radiation Oncology, University of Pennsylvania Health System, Philadelphia, Pennsylvania (United States); Li, Susan Q.; Desai, Krupali [Department of Family Medicine and Community Health, University of Pennsylvania Health System, Philadelphia, Pennsylvania (United States)] [Department of Family Medicine and Community Health, University of Pennsylvania Health System, Philadelphia, Pennsylvania (United States); Xie, Sharon X. [Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania Health System, Philadelphia, Pennsylvania (United States)] [Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania Health System, Philadelphia, Pennsylvania (United States); Mao, Jun J., E-mail: maoj@uphs.upenn.edu [Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania Health System, Philadelphia, Pennsylvania (United States); Abramson Comprehensive Cancer Center, University of Pennsylvania Health System, Philadelphia, Pennsylvania (United States); Department of Family Medicine and Community Health, University of Pennsylvania Health System, Philadelphia, Pennsylvania (United States)

2013-01-01T23:59:59.000Z

17

Estimation of Citation-Based Scholarly Activity Among Radiation Oncology Faculty at Domestic Residency-Training Institutions: 1996-2007  

SciTech Connect

Purpose: Advancement in academic radiation oncology is largely contingent on research productivity and the perceived external influence of an individual's scholarly work. The purpose of this study was to use the Hirsch index (h-index) to estimate the research productivity of current radiation oncology faculty at U.S. academic institutions between 1996 and 2007. Methods and Materials: We performed bibliometric citation database searches for available radiation oncology faculty at domestic residency-training institutions (n = 826). The outcomes analyzed included the total number of manuscripts, total number of citations, and the h-index between 1996 and 2007. Analysis of overall h-index rankings with stratification by academic ranking, junior vs. senior faculty status, and gender was performed. Results: Of the 826 radiation oncologists, the mean h-index was 8.5. Of the individuals in the top 10% by the h-index, 34% were chairpersons, 88% were senior faculty, and 13% were women. A greater h-index was associated with a higher academic ranking and senior faculty status. Recursive partitioning analysis revealed an h-index threshold of 15 (p <0.0001) as an identified breakpoint between the senior and junior faculty. Overall, women had lower h-indexes compared with men (mean, 6.4 vs. 9.4); however, when stratified by academic ranking, the gender differential all but disappeared. Conclusion: Using the h-index as a partial surrogate for research productivity, it appears that radiation oncologists in academia today comprise a prolific group, however, with a highly skewed distribution. According to the present analysis, the h-index correlated with academic ranking. Thus, it potentially has utility in the process of promotion decisions. Overall, women in radiation oncology were less academically productive than men; the possible reasons for the gender differential are discussed.

Choi, Mehee [Department of Radiation Medicine, Oregon Health and Science University, Portland, OR (United States); Fuller, Clifton D. [Department of Radiation Medicine, Oregon Health and Science University, Portland, OR (United States); Department of Radiation Oncology, Division of Radiological Sciences, University of Texas Health Science Center at San Antonio, San Antonio, TX (United States); Department of Radiology, Division of Radiological Sciences, University of Texas Health Science Center at San Antonio, San Antonio, TX (United States); Thomas, Charles R. [Department of Radiation Medicine, Oregon Health and Science University, Portland, OR (United States)], E-mail: thomasch@ohsu.edu

2009-05-01T23:59:59.000Z

18

Emergence of Integrated Urology-Radiation Oncology Practices in the State of Texas  

SciTech Connect

Purpose: Integrated urology-radiation oncology (RO) practices have been advocated as a means to improve community-based prostate cancer care by joining urologic and radiation care in a single-practice environment. However, little is known regarding the scope and actual physical integration of such practices. We sought to characterize the emergence of such practices in Texas, their extent of physical integration, and their potential effect on patient travel times for radiation therapy. Methods and Materials: A telephone survey identified integrated urology-RO practices, defined as practices owned by urologists that offer RO services. Geographic information software was used to determine the proximity of integrated urology-RO clinic sites with respect to the state's population. We calculated patient travel time and distance from each integrated urology-RO clinic offering urologic services to the RO treatment facility owned by the integrated practice and to the nearest nonintegrated (independent) RO facility. We compared these times and distances using the Wilcoxon-Mann-Whitney test. Results: Of 229 urology practices identified, 12 (5%) offered integrated RO services, and 182 (28%) of 640 Texas urologists worked in such practices. Approximately 53% of the state population resides within 10 miles of an integrated urology-RO clinic site. Patients with a diagnosis of prostate cancer at an integrated urology-RO clinic site travel a mean of 19.7 miles (26.1 min) from the clinic to reach the RO facility owned by the integrated urology-RO practice vs 5.9 miles (9.2 min) to reach the nearest nonintegrated RO facility (P<.001). Conclusions: Integrated urology-RO practices are common in Texas and are generally clustered in urban areas. In most integrated practices, the urology clinics and the integrated RO facilities are not at the same location, and driving times and distances from the clinic to the integrated RO facility exceed those from the clinic to the nearest nonintegrated RO facility.

Jhaveri, Pavan M. [Section of Radiation Oncology, Department of Radiology, Baylor College of Medicine, Houston, Texas (United States)] [Section of Radiation Oncology, Department of Radiology, Baylor College of Medicine, Houston, Texas (United States); Sun Zhuyi [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States)] [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Ballas, Leslie [Valley Radiotherapy Associates Medical Group, Manhattan Beach, California (United States)] [Valley Radiotherapy Associates Medical Group, Manhattan Beach, California (United States); Followill, David S. [Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, Texas (United States)] [Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Hoffman, Karen E. [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States)] [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Jiang Jing [Division of Quantitative Sciences, University of Texas MD Anderson Cancer Center, Houston, Texas (United States)] [Division of Quantitative Sciences, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Smith, Benjamin D., E-mail: BSmith3@mdanderson.org [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States)

2012-09-01T23:59:59.000Z

19

Patterns of Care for Lung Cancer in Radiation Oncology Departments of Turkey  

SciTech Connect

Purpose: To determine the patterns of care for lung cancer in Turkish radiation oncology centers. Methods and Materials: Questionnaire forms from 21 of 24 (87.5%) centers that responded were evaluated. Results: The most frequent histology was non-small cell lung cancer (NSCLC) (81%). The most common postoperative radiotherapy (RT) indications were close/(+) surgical margins (95%) and presence of pN2 disease (91%). The most common indications for postoperative chemotherapy (CHT) were '{>=} IB' disease (19%) and the presence of pN2 disease (19%). In Stage IIIA potentially resectable NSCLC, the most frequent treatment approach was neoadjuvant concomitant chemoradiotherapy (CHRT) (57%). In Stage IIIA unresectable and Stage IIIB disease, the most frequent approach was definitive concomitant CHRT (91%). In limited SCLC, the most common treatment approach was concomitant CHRT with cisplatin+etoposide for cycles 1-3, completion of CHT to cycles 4-6, and finally prophylactic cranial irradiation in patients with complete response (71%). Six cycles of cisplatin + etoposide CHT and palliative thoracic RT, when required, was the most commonly used treatment (81%) in extensive SCLC. Sixty-two percent of centers did not have endobronchial brachytherapy (EBB) facilities. Conclusion: There is great variation in diagnostic testing, treatment strategies, indications for postoperative RT and CHT, RT features, and EBB availability for LC cases. To establish standards, national guidelines should be prepared using a multidisciplinary approach.

Demiral, Ayse Nur [Dokuz Eylul University Medical School, Department of Radiation Oncology, Izmir (Turkey)], E-mail: ayse.demiral@deu.edu.tr; Alicikus, Zuemre Arican [Dokuz Eylul University Medical School, Department of Radiation Oncology, Izmir (Turkey); Isil Ugur, Vahide [Ankara Oncology Hospital, Department of Radiation Oncology, Ankara (Turkey); Karadogan, Ilker [Izmir Private Oncology Center, Izmir (Turkey); Yoeney, Adnan [Okmeydani Training and Research Hospital, Department of Radiation Oncology, Istanbul (Turkey); Andrieu, Meltem Nalca [Ankara University Medical School, Department of Radiation Oncology, Ankara (Turkey); Yalman, Deniz [Ege University Medical School, Department of Radiation Oncology, Izmir (Turkey); Pak, Yuecel [Gazi University Medical School, Department of Radiation Oncology, Ankara (Turkey); Aksu, Gamze [Akdeniz University Medical School, Department of Radiation Oncology, Antalya (Turkey); Ozyigit, Goekhan [Hacettepe University Medical School, Department of Radiation Oncology, Ankara (Turkey); Ozkan, Luetfi [Uludag University Medical School, Department of Radiation Oncology, Bursa (Turkey); Kilciksiz, Sevil [Gaziantep University Medical School, Department of Radiation Oncology, Gaziantep (Turkey); Koca, Sedat [Istanbul University Cerrahpasa Medical School, Department of Radiation Oncology, Istanbul (Turkey); Caloglu, Murat [Trakya University Medical School, Department of Radiation Oncology, Edirne (Turkey); Yavuz, Ali Aydin [Baskent University Medical School, Department of Radiation Oncology, Adana (Turkey); Basak Caglar, Hale [Marmara University Medical School, Department of Radiation Oncology, Istanbul (Turkey); Beyzadeoglu, Murat [Guelhane Military Medical Academy, Department of Radiation Oncology, Ankara (Turkey); Igdem, Sefik [Metropolitan Florence Nightingale Hospital, Department of Radiation Oncology, Istanbul (Turkey)] (and others)

2008-12-01T23:59:59.000Z

20

Advanced Laser Particle Accelerator Development at LANL: From Fast Ignition to Radiation Oncology  

Science Conference Proceedings (OSTI)

Laser-plasma accelerated ion and electron beam sources are an emerging field with vast prospects, and promise many superior applications in a variety of fields such as hadron cancer therapy, compact radioisotope generation, table-top nuclear physics, laboratory astrophysics, nuclear forensics, waste transmutation, Special Nuclear Material (SNM) detection, and inertial fusion energy. LANL is engaged in several projects seeking to develop compact high-current and high-energy ion and electron sources. We are especially interested in two specific applications: ion fast ignition/capsule perturbation and radiation oncology. Laser-to-beam conversion efficiencies of over 10% are needed for practical applications, and we have already shown inherent efficiencies of >5% from flat foils, on Trident using only a 5th of the intensity and energy of the Nova Petawatt laser. With clever target designs, like structured curved cone targets, we have also been able to achieve major ion energy gains, leading to the highest energy laser-accelerated proton beams in the world [3]. These new target designs promise to help usher in the next generation of particle sources realizing the potential of laser-accelerated beams.

Flippo, K. A.; Offermann, D. T.; Cobble, J. A.; Schmitt, M. J.; Gautier, D. C.; Kwan, T. J.; Montgomery, D. S. [Los Alamos National Laboratory, PO BOX 1663, Los Alamos, NM 87545 (United States); Gaillard, S. A.; Kluge, T.; Bussmann, M.; Cowan, T. E. [ForschungsZentrum Dresden-Rossendorf, Bautzner Landstr. 400, 01328 Dresden (Germany); Bartal, T.; Beg, F. N. [University of California, San Diego, Mechanical and Aerospace Engineering Dept., La Jolla, CA 92038 (United States); Gall, B.; Kovaleski, S. [University of Missouri, Electrical and Computer Engineering, Columbia MO 65211 (United States); Geissel, M.; Schollmeier, M. [Sandia National Laboratories, PO Box 5800, Albuquerque, NM 87185 (United States); Korgan, G.; Malekos, S. [Nanolabz, 661 Sierra Rose Dr., Reno, NV 89511 (United States); Lockard, T. [University of Nevada, Physics, Reno, NV 89557 (United States)

2010-11-04T23:59:59.000Z

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21

Implementation of Remote 3-Dimensional Image Guided Radiation Therapy Quality Assurance for Radiation Therapy Oncology Group Clinical Trials  

Science Conference Proceedings (OSTI)

Purpose: To report the process and initial experience of remote credentialing of three-dimensional (3D) image guided radiation therapy (IGRT) as part of the quality assurance (QA) of submitted data for Radiation Therapy Oncology Group (RTOG) clinical trials; and to identify major issues resulting from this process and analyze the review results on patient positioning shifts. Methods and Materials: Image guided radiation therapy datasets including in-room positioning CT scans and daily shifts applied were submitted through the Image Guided Therapy QA Center from institutions for the IGRT credentialing process, as required by various RTOG trials. A centralized virtual environment is established at the RTOG Core Laboratory, containing analysis tools and database infrastructure for remote review by the Physics Principal Investigators of each protocol. The appropriateness of IGRT technique and volumetric image registration accuracy were evaluated. Registration accuracy was verified by repeat registration with a third-party registration software system. With the accumulated review results, registration differences between those obtained by the Physics Principal Investigators and from the institutions were analyzed for different imaging sites, shift directions, and imaging modalities. Results: The remote review process was successfully carried out for 87 3D cases (out of 137 total cases, including 2-dimensional and 3D) during 2010. Frequent errors in submitted IGRT data and challenges in the review of image registration for some special cases were identified. Workarounds for these issues were developed. The average differences of registration results between reviewers and institutions ranged between 2 mm and 3 mm. Large discrepancies in the superior-inferior direction were found for megavoltage CT cases, owing to low spatial resolution in this direction for most megavoltage CT cases. Conclusion: This first experience indicated that remote review for 3D IGRT as part of QA for RTOG clinical trials is feasible and effective. The magnitude of registration discrepancy between institution and reviewer was presented, and the major issues were investigated to further improve this remote evaluation process.

Cui Yunfeng [Department of Radiation Oncology, Jefferson Medical College of Thomas Jefferson University, Philadelphia, Pennsylvania (United States)] [Department of Radiation Oncology, Jefferson Medical College of Thomas Jefferson University, Philadelphia, Pennsylvania (United States); Galvin, James M. [Department of Radiation Oncology, Jefferson Medical College of Thomas Jefferson University, Philadelphia, Pennsylvania (United States) [Department of Radiation Oncology, Jefferson Medical College of Thomas Jefferson University, Philadelphia, Pennsylvania (United States); Radiation Therapy Oncology Group, American College of Radiology, Philadelphia, Pennsylvania (United States); Parker, William [Department of Medical Physics, McGill University Health Center, Montreal, QC (Canada)] [Department of Medical Physics, McGill University Health Center, Montreal, QC (Canada); Breen, Stephen [Department of Radiation Physics, Princess Margaret Hospital, Toronto, ON (Canada)] [Department of Radiation Physics, Princess Margaret Hospital, Toronto, ON (Canada); Yin Fangfang; Cai Jing [Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina (United States)] [Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina (United States); Papiez, Lech S. [Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas (United States)] [Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas (United States); Li, X. Allen [Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, Wisconsin (United States)] [Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, Wisconsin (United States); Bednarz, Greg [Department of Radiation Oncology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania (United States)] [Department of Radiation Oncology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania (United States); Chen Wenzhou [Department of Radiation Oncology, Jefferson Medical College of Thomas Jefferson University, Philadelphia, Pennsylvania (United States)] [Department of Radiation Oncology, Jefferson Medical College of Thomas Jefferson University, Philadelphia, Pennsylvania (United States); Xiao Ying, E-mail: ying.xiao@jefferson.edu [Department of Radiation Oncology, Jefferson Medical College of Thomas Jefferson University, Philadelphia, Pennsylvania (United States); Radiation Therapy Oncology Group, American College of Radiology, Philadelphia, Pennsylvania (United States)

2013-01-01T23:59:59.000Z

22

Western University Nuclear Radiation Safety Inspection Checklist  

E-Print Network (OSTI)

with unsealed nuclear substances. Print out of wipe test kept in the logbook . For safety work practices, rightMay 2012 Western University Nuclear Radiation Safety Inspection Checklist Permit Holder to nuclear substances or radiation devices is restricted to authorized radiation users listed on the permit

Sinnamon, Gordon J.

23

Head-and-Neck Target Delineation Among Radiation Oncology Residents After a Teaching Intervention: A Prospective, Blinded Pilot Study  

Science Conference Proceedings (OSTI)

Purpose: We conducted this study to determine the feasibility of incorporating a teaching intervention on target delineation into the educational curriculum of a radiation oncology residency program and to assess the short-term effects on resident skills. Methods and Materials: The study schema consisted of a baseline evaluation, the teaching intervention, and a follow-up evaluation. At the baseline evaluation, the participants contoured three clinical tumor volumes (CTVs) (70 Gy, 59.4 Gy, and 54 Gy) on six contrast-enhanced axial computed tomography images of a de-identified patient with Stage T2N2bM0 squamous cell carcinoma of the right base of the tongue. The participants attended a series of head-and-neck oncology and anatomy seminars. The teaching intervention consisted of a didactic lecture and an interactive hands-on practical session designed to improve the knowledge and skills for target delineation in the head and neck. At the follow-up evaluation, the residents again contoured the CTVs. Results: Of the 14 eligible residents, 11 (79%) actually participated in the study. For all participants, but especially for those who had not had previous experience with head-and-neck target delineation, the teaching intervention was associated with improvement in the delineation of the node-negative neck (CTV 54 Gy contour). Regardless of clinical experience, participants had difficulty determining what should be included in the CTV 59.4 Gy contour to ensure adequate coverage of potential microscopic disease. Conclusion: Incorporating a teaching intervention into the education curriculum of a radiation oncology residency program is feasible and was associated with short-term improvements in target delineation skills. Subsequent interventions will require content refinement, additional validation, longer term follow-up, and multi-institutional collaboration.

Bekelman, Justin E. [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States)], E-mail: bekelmaj@mskcc.org; Wolden, Suzanne; Lee, Nancy [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY (United States)

2009-02-01T23:59:59.000Z

24

Insufficiency Fractures After Pelvic Radiation Therapy for Uterine Cervical Cancer: An Analysis of Subjects in a Prospective Multi-institutional Trial, and Cooperative Study of the Japan Radiation Oncology Group (JAROG) and Japanese Radiation Oncology Study Group (JROSG)  

Science Conference Proceedings (OSTI)

Purpose: To investigate pelvic insufficiency fractures (IF) after definitive pelvic radiation therapy for early-stage uterine cervical cancer, by analyzing subjects of a prospective, multi-institutional study. Materials and Methods: Between September 2004 and July 2007, 59 eligible patients were analyzed. The median age was 73 years (range, 37-84 years). The International Federation of Gynecologic Oncology and Obstetrics stages were Ib1 in 35, IIa in 12, and IIb in 12 patients. Patients were treated with the constant method, which consisted of whole-pelvic external-beam radiation therapy of 50 Gy/25 fractions and high-dose-rate intracavitary brachytherapy of 24 Gy/4 fractions without chemotherapy. After radiation therapy the patients were evaluated by both pelvic CT and pelvic MRI at 3, 6, 12, 18, and 24 months. Diagnosis of IF was made when the patients had both CT and MRI findings, neither recurrent tumor lesions nor traumatic histories. The CT findings of IF were defined as fracture lines or sclerotic linear changes in the bones, and MRI findings of IF were defined as signal intensity changes in the bones, both on T1- and T2-weighted images. Results: The median follow-up was 24 months. The 2-year pelvic IF cumulative occurrence rate was 36.9% (21 patients). Using Common Terminology Criteria for Adverse Events version 3.0, grade 1, 2, and 3 IF were seen in 12 (21%), 6 (10%), and 3 patients (5%), respectively. Sixteen patients had multiple fractures, so IF were identified at 44 sites. The pelvic IF were frequently seen at the sacroileal joints (32 sites, 72%). Nine patients complained of pain. All patients' pains were palliated by rest or non-narcotic analgesic drugs. Higher age (>70 years) and low body weight (<50 kg) were thought to be risk factors for pelvic IF (P=.007 and P=.013, Cox hazard test). Conclusions: Cervical cancer patients with higher age and low body weight may be at some risk for the development of pelvic IF after pelvic radiation therapy.

Tokumaru, Sunao, E-mail: tokumaru@cc.saga-u.ac.jp [Department of Heavy Particle Therapy and Radiation Oncology, Saga University, Saga (Japan)] [Department of Heavy Particle Therapy and Radiation Oncology, Saga University, Saga (Japan); Toita, Takafumi [Department of Radiology, Graduate School of Medical Science, University of the Ryukyus, Okinawa (Japan)] [Department of Radiology, Graduate School of Medical Science, University of the Ryukyus, Okinawa (Japan); Oguchi, Masahiko [Radiation Oncology Department, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo (Japan)] [Radiation Oncology Department, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo (Japan); Ohno, Tatsuya [Gunma University Heavy Ion Medical Center, Maebashi (Japan)] [Gunma University Heavy Ion Medical Center, Maebashi (Japan); Kato, Shingo [Department of Radiation Oncology, Saitama Medical University, International Medical Center, Saitama (Japan)] [Department of Radiation Oncology, Saitama Medical University, International Medical Center, Saitama (Japan); Niibe, Yuzuru [Department of Radiology, School of Medicine, Kitasato University, Sagamihara (Japan)] [Department of Radiology, School of Medicine, Kitasato University, Sagamihara (Japan); Kazumoto, Tomoko [Department of Radiology, Saitama Cancer Center, Saitama (Japan)] [Department of Radiology, Saitama Cancer Center, Saitama (Japan); Kodaira, Takeshi [Department of Radiation Oncology, Aichi Cancer Center, Nagoya (Japan)] [Department of Radiation Oncology, Aichi Cancer Center, Nagoya (Japan); Kataoka, Masaaki [Department of Radiology, National Shikoku Cancer Center, Matsuyama (Japan)] [Department of Radiology, National Shikoku Cancer Center, Matsuyama (Japan); Shikama, Naoto [Department of Radiation Oncology, Saitama Medical University, International Medical Center, Saitama (Japan)] [Department of Radiation Oncology, Saitama Medical University, International Medical Center, Saitama (Japan); Kenjo, Masahiro [Department of Radiation Oncology, Graduate School of Medical Science, Hiroshima University, Hiroshima (Japan)] [Department of Radiation Oncology, Graduate School of Medical Science, Hiroshima University, Hiroshima (Japan); Yamauchi, Chikako [Department of Radiation Oncology, Shiga Medical Center for Adults, Moriyama (Japan)] [Department of Radiation Oncology, Shiga Medical Center for Adults, Moriyama (Japan); Suzuki, Osamu [Department of Radiation Oncology, Osaka Medical Center for Cancer, Osaka (Japan)] [Department of Radiation Oncology, Osaka Medical Center for Cancer, Osaka (Japan); Sakurai, Hideyuki [Proton Medical Research Center and Tsukuba University, Tuskuba (Japan)] [Proton Medical Research Center and Tsukuba University, Tuskuba (Japan); Teshima, Teruki [Department of Medical Physics and Engineering, Graduate School of Medicine, Osaka University, Suita (Japan)] [Department of Medical Physics and Engineering, Graduate School of Medicine, Osaka University, Suita (Japan); Kagami, Yoshikazu [Department of Radiology, Showa University School of Medicine, Tokyo (Japan)] [Department of Radiology, Showa University School of Medicine, Tokyo (Japan); Nakano, Takashi [Department of Radiation Oncology, Gunma University, Graduate School of Medicine, Maebashi (Japan)] [Department of Radiation Oncology, Gunma University, Graduate School of Medicine, Maebashi (Japan); Hiraoka, Masahiro [Department of Radiation Oncology and Image-applied Therapy, Kyoto University, Graduate School of Medicine, Kyoto (Japan)] [Department of Radiation Oncology and Image-applied Therapy, Kyoto University, Graduate School of Medicine, Kyoto (Japan); and others

2012-10-01T23:59:59.000Z

25

An Analysis of Universality in Blackbody Radiation  

E-Print Network (OSTI)

Through the formulation of his law of thermal emission, Kirchhoff conferred upon blackbody radiation the quality of universality [G.Kirchhoff, Annalen der Physik 109, 275 (1860)]. Consequently, modern physics holds that such radiation is independent of the nature and shape of the emitted object. Recently, Kirchhoff's experimental work and theoretical conclusions have been reconsidered [P.M.L. Robitaille, IEEE Transactions on Plasma Science 31(6), 1263 (2003). In this work, Einstein's derivation of the Planckian relation is reexamined. It is demonstrated that claims of universality in blackbody radiation are invalid.

Pierre-Marie Robitaille

2005-07-01T23:59:59.000Z

26

Internet-Based Survey Evaluating Use of Pain Medications and Attitudes of Radiation Oncology Patients Toward Pain Intervention  

SciTech Connect

Purpose: Pain is a common symptom among cancer patients, yet many patients do not receive adequate pain management. Few data exist quantifying analgesic use by radiation oncology patients. This study evaluated the causes of pain in cancer patients and investigated the reasons patients fail to receive optimal analgesic therapy. Methods and Materials: An institutional review board-approved, Internet-based questionnaire assessing analgesic use and pain control was posted on the OncoLink (available at (www.oncolink.org)) Website. Between November 2005 and April 2006, 243 patients responded. They were predominantly women (73%), white (71%), and educated beyond high school (67%) and had breast (38%), lung (6%), or ovarian (6%) cancer. This analysis evaluated the 106 patients (44%) who underwent radiotherapy. Results: Of the 106 patients, 58% reported pain from their cancer treatment, and 46% reported pain directly from their cancer. The pain was chronic in 51% and intermittent in 33%. Most (80%) did not use medication to manage their pain. Analgesic use was significantly less in patients with greater education levels (11% vs. 36%, p = 0.002), with a trend toward lower use by whites (16% vs. 32%, p 0.082) and women (17% vs. 29%, p = 0.178). The reasons for not taking analgesics included healthcare provider not recommending medication (87%), fear of addiction or dependence (79%), and inability to pay (79%). Participants experiencing pain, but not taking analgesics, pursued alternative therapies for relief. Conclusions: Many radiation oncology patients experience pain from their disease and cancer treatment. Most study participants did not use analgesics because of concerns of addiction, cost, or failure of the radiation oncologist to recommend medication. Healthcare providers should have open discussions with their patients regarding pain symptoms and treatment.

Simone, Charles B. [Department of Radiation Oncology, Hospital of University of Pennsylvania, Philadelphia, PA (United States); Radiation Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD (United States)], E-mail: simonec@mail.nih.gov; Vapiwala, Neha; Hampshire, Margaret K.; Metz, James M. [Department of Radiation Oncology, Hospital of University of Pennsylvania, Philadelphia, PA (United States)

2008-09-01T23:59:59.000Z

27

Patterns of Radiotherapy Practice for Pancreatic Cancer in Japan: Results of the Japanese Radiation Oncology Study Group (JROSG) Survey  

Science Conference Proceedings (OSTI)

Purpose: To determine the patterns of radiotherapy practice for pancreatic cancer in Japan. Methods and Materials: A questionnaire-based national survey of radiotherapy for pancreatic cancer treated between 2000 and 2006 was conducted by the Japanese Radiation Oncology Study Group (JROSG). Detailed information on 870 patients from 34 radiation oncology institutions was accumulated. Results: The median age of all patients was 64 years (range, 36-88), and 80.2% of the patients had good performance status. More than 85% of patients had clinical Stage T3-T4 disease, and 68.9% of patients had unresectable disease at diagnosis. Concerning radiotherapy (RT), 49.8% of patients were treated with radical external beam RT (EBRT) (median dose, 50.4 Gy), 44.4% of patients were treated with intraoperative RT (median dose, 25 Gy) with or without EBRT (median dose, 45 Gy), and 5.9% of patients were treated with postoperative radiotherapy (median dose, 50 Gy). The treatment field consisted of the primary tumor (bed) only in 55.6% of the patients. Computed tomography-based treatment planning and conformal RT was used in 93.1% and 83.1% of the patients treated with EBRT, respectively. Chemotherapy was used for 691 patients (79.4%; before RT for 66 patients; during RT for 531; and after RT for 364). Gemcitabine was the most frequently used drug, followed by 5-fluorouracil. Conclusion: This study describes the general patterns of RT practice for pancreatic cancer in Japan. Most patients had advanced unresectable disease, and radical EBRT, as well as intraoperative RT with or without EBRT, was frequently used. Chemotherapy with gemcitabine was commonly used in conjunction with RT during the survey period.

Ogawa, Kazuhiko, E-mail: kogawa@med.u-ryukyu.ac.j [Department of Radiology, University of the Ryukyus, Okinawa (Japan); Ito, Yoshinori [Department of Radiation Oncology, National Cancer Center, Tokyo (Japan); Karasawa, Katsuyuki [Department of Radiation Oncology, Tokyo Metropolitan Komagome Hospital, Tokyo (Japan); Ogawa, Yoshihiro [Department of Radiation Oncology, Tohoku University, Sendai (Japan); Onishi, Hiroshi [Department of Radiology, Yamanashi University, Yamanashi (Japan); Kazumoto, Tomoko [Department of Radiation Oncology, Saitama Cancer Center, Saitama (Japan); Shibuya, Keiko [Department of Radiation Oncology and Image-Applied Therapy, Kyoto University, Kyoto (Japan); Shibuya, Hitoshi [Department of Radiology, Tokyo Medical and Dental University, Tokyo (Japan); Okuno, Yoshishige [Department of Radiation Oncology, Kobe City Medical Center General Hospital, Kobe (Japan); Nishino, Shigeo [Department of Radiation Oncology, Sapporo Kosei General Hospital, Sapporo (Japan); Ogo, Etsuyo [Department of Radiology, Kurume University, Kurume (Japan); Uchida, Nobue [Department of Radiation Oncology, Shimane Medical University, Shimane (Japan); Karasawa, Kumiko [Department of Radiation Oncology, Juntendo University, Tokyo (Japan); Nemoto, Kenji [Department of Radiation Oncology, Yamagata University, Yamagata (Japan); Nishimura, Yasumasa [Department of Radiation Oncology, Kinki University School of Medicine, Osaka (Japan)

2010-07-01T23:59:59.000Z

28

Princeton University, Physics 311/312 Blackbody Radiation, Page 1 BLACKBODY RADIATION  

E-Print Network (OSTI)

Princeton University, Physics 311/312 Blackbody Radiation, Page 1 BLACKBODY RADIATION Introduction by frequency. #12;Princeton University, Physics 311/312 Blackbody Radiation, Page 2 When he tried to justify-4 lock-in amplifier. #12;Princeton University, Physics 311/312 Blackbody Radiation, Page 3 Schematic

29

Results of the 2003 Association of Residents in Radiation Oncology (ARRO) surveys of residents and chief residents in the United States  

Science Conference Proceedings (OSTI)

Purpose: To document demographic characteristics of current residents, career motivations and aspirations, and training program policies and resources. Methods: In 2003, the Association of Residents in Radiation Oncology (ARRO) conducted two nationwide surveys: one of all U.S. radiation oncology residents and one of chief residents. Results: The Chief Residents' Survey was completed by representatives from all 77 programs (response rate, 100%). The Residents' Survey was returned by 229 respondents (response rate, 44%). In each, 32% of respondents were female. The most popular career after residency was private practice (46%), followed by permanent academic practice (28%). Changes that would entice those choosing private practice to consider an academic career included more research experience as a resident (76%), higher likelihood of tenure (69%), lesser time commitment (66%), and higher salary (54%). Although the majority of respondents were satisfied with educational experience overall, a number of programs were reported to provide fewer resources than required. Conclusions: Median program resources and numbers of outliers are documented to allow residents and program directors to assess the relative adequacy of experience in their own programs. Policy-making bodies and individual programs should consider these results when developing interventions to improve educational experiences of residents and to increase retention of radiation oncologists in academic practice.

Jagsi, Reshma [Massachusetts General Hospital, Boston, MA (United States); Buck, David A. [Medical College of Virginia, Richmond, VA (United States); Singh, Anurag K. [Washington University, Seattle, WA (United States); Engleman, Mark [Northwestern University, Chicago, IL (United States); Thakkar, Vipul [Cleveland Clinic, Cleveland, OH (United States); Frank, Steven J. [University of Texas M. D. Anderson Cancer Center, Houston, TX (United States); Flynn, Daniel [Holy Family Hospital, Methuen, MA (United States)

2005-03-01T23:59:59.000Z

30

NREL: MIDC/University of Texas Panamerican Solar Radiation Lab...  

NLE Websites -- All DOE Office Websites (Extended Search)

The Measurement and Instrumentation Data Center collects Irradiance and Meterological data from the University of Texas Panamerican (UTPA) Solar Radiation Lab (SRL)....

31

Results of the 2005-2008 Association of Residents in Radiation Oncology Survey of Chief Residents in the United States: Clinical Training and Resident Working Conditions  

Science Conference Proceedings (OSTI)

Purpose: To document clinical training and resident working conditions reported by chief residents during their residency. Methods and Materials: During the academic years 2005 to 2006, 2006 to 2007, and 2007 to 2008, the Association of Residents in Radiation Oncology conducted a nationwide survey of all radiation oncology chief residents in the United States. Chi-square statistics were used to assess changes in clinical training and resident working conditions over time. Results: Surveys were completed by representatives from 55 programs (response rate, 71.4%) in 2005 to 2006, 60 programs (75.9%) in 2006 to 2007, and 74 programs (93.7%) in 2007 to 2008. Nearly all chief residents reported receiving adequate clinical experience in commonly treated disease sites, such as breast and genitourinary malignancies; and commonly performed procedures, such as three-dimensional conformal radiotherapy and intensity-modulated radiotherapy. Clinical experience in extracranial stereotactic radiotherapy increased over time (p capital costs, such as particle beam therapy and intraoperative radiotherapy, and infrequent clinical use, such as head and neck brachytherapy, were limited to a minority of institutions. Most residency programs associated with at least one satellite facility have incorporated resident rotations into their clinical training, and the majority of residents at these programs find them valuable experiences. The majority of residents reported working 60 or fewer hours per week on required clinical duties. Conclusions: Trends in clinical training and resident working conditions over 3 years are documented to allow residents and program directors to assess their residency training.

Gondi, Vinai, E-mail: gondi@humonc.wisc.edu [Department of Radiation Oncology, University of Wisconsin Comprehensive Cancer Center, Madison, Wisconsin (United States); Bernard, Johnny Ray [Mayo Clinic Jacksonville, Jacksonville, Florida (United States); Jabbari, Siavash [University of California San Francisco, San Francisco, California (United States); Keam, Jennifer [Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Amorim Bernstein, Karen L. de [Albert Einstein College of Medicine, Bronx, New York (United States); Dad, Luqman K. [SUNY Roswell Park Cancer Institute, Buffalo, New York (United States); Li, Linna [Fox Chase Cancer Center, Philadelphia, Pennsylvania (United States); Poppe, Matthew M. [University of Utah Huntsman Cancer Hospital (United States); Strauss, Jonathan B. [Northwestern University Feinberg School of Medicine, Chicago, Illinois (United States); Chollet, Casey T. [Loyola University Medical Center, Maywood, Illinois (United States)

2011-11-15T23:59:59.000Z

32

Do Intermediate Radiation Doses Contribute to Late Rectal Toxicity? An Analysis of Data From Radiation Therapy Oncology Group Protocol 94-06  

SciTech Connect

Purpose: To investigate whether the volumes of rectum exposed to intermediate doses, from 30 to 50 Gy, contribute to the risk of Grade {>=}2 late rectal toxicity among patients with prostate cancer receiving radiotherapy. Methods and Materials: Data from 1009 patients treated on Radiation Therapy Oncology Group protocol 94-06 were analyzed using three approaches. First, the contribution of intermediate doses to a previously published fit of the Lyman-Kutcher-Burman (LKB) normal tissue complication probability (NTCP) model was determined. Next, the extent to which intermediate doses provide additional risk information, after taking the LKB model into account, was investigated. Third, the proportion of rectum receiving doses higher than a threshold, VDose, was computed for doses ranging from 5 to 85 Gy, and a multivariate Cox proportional hazards model was used to determine which of these parameters were significantly associated with time to Grade {>=}2 late rectal toxicity. Results: Doses <60 Gy had no detectable impact on the fit of the LKB model, as expected on the basis of the small estimate of the volume parameter (n = 0.077). Furthermore, there was no detectable difference in late rectal toxicity among cohorts with similar risk estimates from the LKB model but with different volumes of rectum exposed to intermediate doses. The multivariate Cox proportional hazards model selected V75 as the only value of VDose significantly associated with late rectal toxicity. Conclusions: There is no evidence from these data that intermediate doses influence the risk of Grade {>=}2 late rectal toxicity. Instead, the critical doses for this endpoint seem to be {>=}75 Gy. It is hypothesized that cases of Grade {>=}2 late rectal toxicity occurring among patients with V75 less than approximately 12% may be due to a 'background' level of risk, likely due mainly to biological factors.

Tucker, Susan L., E-mail: sltucker@mdanderson.org [Department of Bioinformatics and Computational Biology, University of Texas MD Anderson Cancer Center, Houston, TX (United States); Dong, Lei [Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, TX (United States)] [Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, TX (United States); Michalski, Jeff M. [Department of Radiation Oncology, Washington University, St. Louis, MO (United States)] [Department of Radiation Oncology, Washington University, St. Louis, MO (United States); Bosch, Walter R. [Department of Radiation Oncology, Washington University, St. Louis, MO (United States) [Department of Radiation Oncology, Washington University, St. Louis, MO (United States); Image-Guided Therapy QA Center, Washington University, St. Louis, MO (United States); Winter, Kathryn [American College of Radiology, Philadelphia, PA (United States)] [American College of Radiology, Philadelphia, PA (United States); Cox, James D. [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, TX (United States)] [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, TX (United States); Purdy, James A. [Department of Radiation Oncology, University of California Davis Medical Center, Sacramento, CA (United States)] [Department of Radiation Oncology, University of California Davis Medical Center, Sacramento, CA (United States); Mohan, Radhe [Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, TX (United States)] [Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, TX (United States)

2012-10-01T23:59:59.000Z

33

Oak Rigde Associated Universities (ORAU) Radiation Emergency Assistance  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Rigde Associated Universities (ORAU) Radiation Emergency Rigde Associated Universities (ORAU) Radiation Emergency Assistance Center/Training Site (REAC/TS), ORAU Director Oak Rigde Associated Universities (ORAU) Radiation Emergency Assistance Center/Training Site (REAC/TS), ORAU Director Oak Rigde Associated Universities (ORAU) Radiation Emergency Assistance Center/Training Site (REAC/TS), ORAU Director Oak Rigde Associated Universities (ORAU) Radiation Emergency Assistance Center/Training Site (REAC/TS), ORAU Director More Documents & Publications iManage Strategic Integrated Procurement Enterprise System (STRIPES) PIA, Office of Procurement and Assistance Management LM Records Handling System (LMRHS01) - Energy Employees Occupational Illness Compensation Program Act, Office of Legacy Management LM Records Handling System-Freedom of Information/Privacy Act, Office of

34

The Blackbody Radiation in D-Dimensional Universes  

E-Print Network (OSTI)

The blackbody radiation is analyzed in universes with $D$ spatial dimensions. With the classical electrodynamics suited to the universe in focus and recurring to the hyperspherical coordinates, it is shown that the spectral energy density as well as the total energy density are sensible to the dimensionality of the universe. Wien's displacement law and the Stefan-Boltzmann law are properly generalized.

Tatiana R. Cardoso; Antonio S. de Castro

2005-09-30T23:59:59.000Z

35

Older Age Predicts Decreased Metastasis and Prostate Cancer-Specific Death for Men Treated With Radiation Therapy: Meta-Analysis of Radiation Therapy Oncology Group Trials  

SciTech Connect

Purpose: The impact of age on prostate cancer (PCa) outcome has been controversial; therefore, we analyzed the effect of age on overall survival (OS), distant metastasis, prostate cancer-specific death (PCSD), and nonprostate cancer death (NPCD) on patients with locally advanced PCa. Methods and Materials: Patients who participated in four Radiation Therapy Oncology Group (RTOG) phase III trials, 8531, 8610, 9202, and 9413, were studied. Cox proportional hazards regression was used for OS analysis, and cumulative events analysis with Fine and Gray's regression was used for analyses of metastasis, PCSD, and NPCD. Results: Median follow-up of 4,128 patients with median age of 70 (range, 43-88 years) was 7.3 years. Most patients had high-risk disease: cT3 to cT4 (54%) and Gleason scores (GS) of 7 (45%) and 8 to 10 (27%). Older age ({<=}70 vs. >70 years) predicted for decreased OS (10-year rate, 55% vs. 41%, respectively; p < 0.0001) and increased NPCD (10-year rate, 28% vs. 46%, respectively; p < 0.0001) but decreased metastasis (10-year rate, 27% vs. 20%, respectively; p < 0.0001) and PCSD (10-year rate, 18% vs. 14%, respectively; p < 0.0001). To account for competing risks, outcomes were analyzed in 2-year intervals, and age-dependent differences in metastasis and PCSD persisted, even in the earliest time periods. When adjusted for other covariates, an age of >70 years remained associated with decreased OS (hazard ratio [HR], 1.56 [95% confidence interval [CI], 1.43-1.70] p < 0.0001) but with decreased metastasis (HR, 0.72 [95% CI, 0.63-0.83] p < 0.0001) and PCSD (HR, 0.78 [95% CI, 0.66-0.92] p < 0.0001). Finally, the impact of the duration of androgen deprivation therapy as a function of age was evaluated. Conclusions: These data support less aggressive PCa in older men, independent of other clinical features. While the biological underpinning of this finding remains unknown, stratification by age in future trials appears to be warranted.

Hamstra, Daniel A., E-mail: dhamm@umich.edu [University of Michigan, Ann Arbor, Michigan (United States); Bae, Kyounghwa [Radiation Therapy Oncology Group, Philadelphia, Pennsylvania (United States); Pilepich, Miljenko V. [UCLA Medical Center, Los Angeles, California (United States); Hanks, Gerald E. [Fox Chase Cancer Center, Philadelphia, Pennsylvania (United States); Grignon, David J. [Indiana University-Purdue University Indianapolis, Indiana (United States); McGowan, David G. [Cross Cancer Institute, Edmonton, Alberta (Canada); Roach, Mack [UCSF, San Francisco, California (United States); Lawton, Colleen [Medical College of Wisconsin, Milwaukee, Wisconsin (United States); Lee, R. Jeffrey [Intermountain Medical Center, Salt Lake City, Utah (United States); Sandler, Howard [Cedars-Sinai Medical Center, Los Angeles, California (United States)

2011-12-01T23:59:59.000Z

36

Impact of Gender, Partner Status, and Race on Locoregional Failure and Overall Survival in Head and Neck Cancer Patients in Three Radiation Therapy Oncology Group Trials  

SciTech Connect

Purpose: We investigated the impact of race, in conjunction with gender and partner status, on locoregional control (LRC) and overall survival (OS) in three head and neck trials conducted by the Radiation Therapy Oncology Group (RTOG). Methods and Materials: Patients from RTOG studies 9003, 9111, and 9703 were included. Patients were stratified by treatment arms. Covariates of interest were partner status (partnered vs. non-partnered), race (white vs. non-white), and sex (female vs. male). Chi-square testing demonstrated homogeneity across treatment arms. Hazards ratio (HR) was used to estimate time to event outcome. Unadjusted and adjusted HRs were calculated for all covariates with associated 95% confidence intervals (CIs) and p values. Results: A total of 1,736 patients were analyzed. Unpartnered males had inferior OS rates compared to partnered females (adjusted HR = 1.22, 95% CI, 1.09-1.36), partnered males (adjusted HR = 1.20, 95% CI, 1.09-1.28), and unpartnered females (adjusted HR = 1.20, 95% CI, 1.09-1.32). White females had superior OS compared with white males, non-white females, and non-white males. Non-white males had inferior OS compared to white males. Partnered whites had improved OS relative to partnered non-white, unpartnered white, and unpartnered non-white patients. Unpartnered males had inferior LRC compared to partnered males (adjusted HR = 1.26, 95% CI, 1.09-1.46) and unpartnered females (adjusted HR = 1.30, 95% CI, 1.05-1.62). White females had LRC superior to non-white males and females. White males had improved LRC compared to non-white males. Partnered whites had improved LRC compared to partnered and unpartnered non-white patients. Unpartnered whites had improved LRC compared to unpartnered non-whites. Conclusions: Race, gender, and partner status had impacts on both OS and locoregional failure, both singly and in combination.

Dilling, Thomas J., E-mail: Thomas.Dilling@moffitt.org [Department of Radiation Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida (United States); Bae, Kyounghwa; Paulus, Rebecca [Department of Statistics, Radiation Therapy Oncology Group, Philadelphia, Pennsylvania (United States); Watkins-Bruner, Deborah [School of Nursing, University of Pennsylvania, Philadelphia, Pennsylvania (United States); Garden, Adam S. [Department of Radiation Oncology, University of Texas M. D. Anderson Cancer Center, Houston, Texas (United States); Forastiere, Arlene [Departments of Oncology, Radiation Oncology, and Molecular Radiation Sciences, Johns Hopkins Hospital, Baltimore, Maryland (United States); Kian Ang, K. [Department of Radiation Oncology, University of Texas M. D. Anderson Cancer Center, Houston, Texas (United States); Movsas, Benjamin [Department of Radiation Oncology, Henry Ford Hospital, Detroit, Michigan (United States)

2011-11-01T23:59:59.000Z

37

Radiation Oncology BioMed Central Editorial Why "Radiation Oncology"  

E-Print Network (OSTI)

This is an Open Access article distributed under the terms of the Creative Commons Attribution License

Claus Belka; Kevin A Camphausen; Claus Belka; Kevin A Camphausen

2006-01-01T23:59:59.000Z

38

A Radiation Laboratory Curriculum Development at Western Kentucky University  

SciTech Connect

We present the latest developments for the radiation laboratory curriculum at the Department of Physics and Astronomy of Western Kentucky University. During the last decade, the Applied Physics Institute (API) at WKU accumulated various equipment for radiation experimentation. This includes various neutron sources (computer controlled d-t and d-d neutron generators, and isotopic 252 Cf and PuBe sources), the set of gamma sources with various intensities, gamma detectors with various energy resolutions (NaI, BGO, GSO, LaBr and HPGe) and the 2.5-MeV Van de Graaff particle accelerator. XRF and XRD apparatuses are also available for students and members at the API. This equipment is currently used in numerous scientific and teaching activities. Members of the API also developed a set of laboratory activities for undergraduate students taking classes from the physics curriculum (Nuclear Physics, Atomic Physics, and Radiation Biophysics). Our goal is to develop a set of radiation laboratories, which will strengthen the curriculum of physics, chemistry, geology, biology, and environmental science at WKU. The teaching and research activities are integrated into real-world projects and hands-on activities to engage students. The proposed experiments and their relevance to the modern status of physical science are discussed.

Barzilov, Alexander P.; Novikov, Ivan S.; Womble, Phil C. [Department of Physics and Astronomy, Western Kentucky University, 1906 College Heights Blvd, 11077, Bowling Green KY 42101 (United States)

2009-03-10T23:59:59.000Z

39

UCRL-5257 Rev. UNIVERSITY OF CALIFORNIA Radiation Laboratory  

NLE Websites -- All DOE Office Websites (Extended Search)

UCRL-5257 Rev. UCRL-5257 Rev. UNIVERSITY OF CALIFORNIA Radiation Laboratory Liver more : California Contract No. W- 7405 -eng -48 PEACEFUL USES OF FUSION Edward Teller July 3, 1958 Printed for the U. S. Atomic Energy Commission f . DISCLAIMER This report was prepared as an account by an agency of t h e United States United States Government nor of their employees, or assumes any legal accuracy, completeness, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and

40

MASTER UCRL-9537 UNIVERSITY OF CALIFORNIA Lawrence Radiation Laboratory  

NLE Websites -- All DOE Office Websites (Extended Search)

MASTER MASTER UCRL-9537 UNIVERSITY OF CALIFORNIA Lawrence Radiation Laboratory Berkeley, California Contract No.W-7405-eng-48 A NHARMONIC POTENTIAL CONSTANTS AND THEIR DEPENDENCE UPON BOND LENGTH Dudley R. Herschbach and Victor W. Laurie January 1961 DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or

Note: This page contains sample records for the topic "radiation oncology university" from the National Library of EnergyBeta (NLEBeta).
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41

Limited Chemotherapy and Shrinking Field Radiotherapy for Osteolymphoma (Primary Bone Lymphoma): Results From the Trans-Tasman Radiation Oncology Group 99.04 and Australasian Leukaemia and Lymphoma Group LY02 Prospective Trial;Bone; Lymphoma; Radiotherapy; Chemotherapy; Clinical trial  

SciTech Connect

Purpose: To establish benchmark outcomes for combined modality treatment to be used in future prospective studies of osteolymphoma (primary bone lymphoma). Methods and Materials: In 1999, the Trans-Tasman Radiation Oncology Group (TROG) invited the Australasian Leukemia and Lymphoma Group (ALLG) to collaborate on a prospective study of limited chemotherapy and radiotherapy for osteolymphoma. The treatment was designed to maintain efficacy but limit the risk of subsequent pathological fractures. Patient assessment included both functional imaging and isotope bone scanning. Treatment included three cycles of CHOP chemotherapy and radiation to a dose of 45 Gy in 25 fractions using a shrinking field technique. Results: The trial closed because of slow accrual after 33 patients had been entered. Accrual was noted to slow down after Rituximab became readily available in Australia. After a median follow-up of 4.3 years, the five-year overall survival and local control rates are estimated at 90% and 72% respectively. Three patients had fractures at presentation that persisted after treatment, one with recurrent lymphoma. Conclusions: Relatively high rates of survival were achieved but the number of local failures suggests that the dose of radiotherapy should remain higher than it is for other types of lymphoma. Disability after treatment due to pathological fracture was not seen.

Christie, David, E-mail: david.christie@premion.com.au [Premion and Bond University, Gold Coast, Queensland (Australia); Dear, Keith [Department of Epidemiology and Population Studies, Australian National University, Canberra, New South Wales (Australia); Le, Thai [BHB, Premion, Brisbane, Queensland (Australia); Barton, Michael [Collaboration for Cancer Outcomes and Research (CCORE) and University of NSW, Sydney, New South Wales (Australia); Wirth, Andrew [Peter MacCallum Cancer Institute, Melbourne, Victoria (Australia); Porter, David [Auckland Hospital, Auckland (New Zealand); Roos, Daniel [Royal Adelaide Hospital, Adelaide, South Australia (Australia); Pratt, Gary [Royal Brisbane Hospital, Brisbane, Queensland (Australia)

2011-07-15T23:59:59.000Z

42

Does Unruh radiation accelerate the universe? A novel approach to dark energy  

E-Print Network (OSTI)

In braneworld scenario, the brane accelerates in the bulk, and hence it perceives a thermal bulk filled with Unruh radiation. We put forward that there may be an energy exchange between Unruh radiation in the bulk and the dark matter confined to the brane, which accelerates the universe.

Hongsheng Zhang; Zong-Hong Zhu

2006-07-24T23:59:59.000Z

43

Radiation Dominated Universe for Jordan-Brans-Dicke Cosmology  

E-Print Network (OSTI)

Jordan-Brans-Dicke cosmology with a standard kinetic term for the scalar field and no mass term has the same radiation dominated solution as standard Einstein cosmology without the cosmological constant. Because of this, the primordial nucleosynthesis (Big - Bang nucleosynthesis) result obtained for standard cosmology remains the same for Jordan-Brans-Dicke cosmology. We show that Jordan-Brans-Dicke cosmology with a mass term for the scalar field as well as explaining dark energy for the present era, can also explain radiation dominated cosmology for the primordial nucleosynthesis era.

M. Arik; L. Amon Susam

2010-06-22T23:59:59.000Z

44

A Phase II Comparative Study of Gross Tumor Volume Definition With or Without PET/CT Fusion in Dosimetric Planning for Non-Small-Cell Lung Cancer (NSCLC): Primary Analysis of Radiation Therapy Oncology Group (RTOG) 0515  

SciTech Connect

Background: Radiation Therapy Oncology Group (RTOG) 0515 is a Phase II prospective trial designed to quantify the impact of positron emission tomography (PET)/computed tomography (CT) compared with CT alone on radiation treatment plans (RTPs) and to determine the rate of elective nodal failure for PET/CT-derived volumes. Methods: Each enrolled patient underwent definitive radiation therapy for non-small-cell lung cancer ({>=}60 Gy) and had two RTP datasets generated: gross tumor volume (GTV) derived with CT alone and with PET/CT. Patients received treatment using the PET/CT-derived plan. The primary end point, the impact of PET/CT fusion on treatment plans was measured by differences of the following variables for each patient: GTV, number of involved nodes, nodal station, mean lung dose (MLD), volume of lung exceeding 20 Gy (V20), and mean esophageal dose (MED). Regional failure rate was a secondary end point. The nonparametric Wilcoxon matched-pairs signed-ranks test was used with Bonferroni adjustment for an overall significance level of 0.05. Results: RTOG 0515 accrued 52 patients, 47 of whom are evaluable. The follow-up time for all patients is 12.9 months (2.7-22.2). Tumor staging was as follows: II = 6%; IIIA = 40%; and IIIB = 54%. The GTV was statistically significantly smaller for PET/CT-derived volumes (98.7 vs. 86.2 mL; p < 0.0001). MLDs for PET/CT plans were slightly lower (19 vs. 17.8 Gy; p = 0.06). There was no significant difference in the number of involved nodes (2.1 vs. 2.4), V20 (32% vs. 30.8%), or MED (28.7 vs. 27.1 Gy). Nodal contours were altered by PET/CT for 51% of patients. One patient (2%) has developed an elective nodal failure. Conclusions: PET/CT-derived tumor volumes were smaller than those derived by CT alone. PET/CT changed nodal GTV contours in 51% of patients. The elective nodal failure rate for GTVs derived by PET/CT is quite low, supporting the RTOG standard of limiting the target volume to the primary tumor and involved nodes.

Bradley, Jeffrey, E-mail: jbradley@wustl.edu [Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO (United States); Bae, Kyounghwa [Department of Statistics, RTOG, Philadelphia, PA (United States); Choi, Noah [Massachusetts General Hospital, Boston, MA (United States); Forster, Ken [H. Lee Moffitt Cancer Center, Tampa, FL (United States); Siegel, Barry A. [Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO (United States); Brunetti, Jacqueline [Holy Name Medical Center, Teaneck, NJ (United States); Purdy, James [University of California at Davis, Davis, CA (United States); Faria, Sergio [McGill University, Montreal (Canada); Vu, Toni [Centre Hospitalier Universitaire de Montreal, Hospital Notre Dame, Montreal (Canada); Thorstad, Wade [Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO (United States); Choy, Hak [University of Texas Southwestern, Dallas, TX (United States)

2012-01-01T23:59:59.000Z

45

Establishment of the Radiation Detection Laboratory at Fisk University  

Science Conference Proceedings (OSTI)

Synthetic CdZnTe (CZT) semiconducting crystals are highly suitable for the room temperature-based detection of gamma radiation. The surface preparation of Au contacts on surfaces of CZT detectors is typically conducted after (1) polishing to remove artifacts from crystal sectioning and (2) chemical etching, which removes residual mechanical surface damage however etching results in a Te rich surface layer that is prone to oxidize. Our studies show that CZT surfaces that are only polished (as opposed to polished and etched) can be contacted with Au and will yield lower surface currents. Due to their decreased dark currents, these as-polished surfaces can be used in the fabrication of gamma detectors exhibiting a higher performance than polished and etched surfaces with relatively less peak tailing and greater energy resolution.032}

Arnold Burger, Ph.D.

2008-02-28T23:59:59.000Z

46

Early Salvage Hormonal Therapy for Biochemical Failure Improved Survival in Prostate Cancer Patients After Neoadjuvant Hormonal Therapy Plus Radiation Therapy-A Secondary Analysis of Irish Clinical Oncology Research Group 97-01  

SciTech Connect

Purpose: To assess the survival benefit of early vs late salvage hormonal therapy (HT), we performed a secondary analysis on patients who developed recurrence from Irish Clinical Oncology Research Group 97-01, a randomized trial comparing 4 vs 8 months neoadjuvant HT plus radiation therapy (RT) in intermediate- and high-risk prostate adenocarcinoma. Methods and Materials: A total of 102 patients from the trial who recurred were analyzed at a median follow-up of 8.5 years. The patients were divided into 3 groups based on the timing of salvage HT: 57 patients had prostate-specific antigen (PSA) {<=}10 ng/mL and absent distant metastases (group 1, early), 21 patients had PSA >10 ng/mL and absent distant metastases (group 2, late), and 24 patients had distant metastases (group 3, late). The endpoint analyzed was overall survival (OS) calculated from 2 different time points: date of enrolment in the trial (OS1) and date of initiation of salvage HT (OS2). Survival was estimated using Kaplan-Meier curves and a Cox regression model. Results: The OS1 differed significantly between groups (P<.0005): OS1 at 10 years was 78% in group 1, 42% in group 2, and 29% in group 3. The OS2 also differed significantly between groups (P<.0005): OS2 at 6 years was 70% in group 1, 47% in group 2, and 22% in group 3. Group 1 had the longest median time from end of RT to biochemical failure compared with groups 2 and 3 (3.3, 0.9, and 1.7 years, respectively; P<.0005). Group 1 also had the longest median PSA doubling time compared with groups 2 and 3 (9.9, 3.6, and 2.4 months, respectively; P<.0005). On multivariate analysis, timing of salvage HT, time from end of RT to biochemical failure, and PSA nadir on salvage HT were significant predictors of survival. Conclusion: Early salvage HT based on PSA {<=}10 ng/mL and absent distant metastases improved survival in patients with prostate cancer after failure of initial treatment with neoadjuvant HT plus RT.

Mydin, Aminudin R., E-mail: aminudinrahman@googlemail.com [Department of Radiotherapy and Oncology, Kuala Lumpur Hospital, Kuala Lumpur (Malaysia); Dunne, Mary T.; Finn, Marie A. [Clinical Trials Resource Unit, St. Luke's Hospital, Dublin (Ireland)] [Clinical Trials Resource Unit, St. Luke's Hospital, Dublin (Ireland); Armstrong, John G. [Department of Radiation Oncology, St. Luke's Hospital, Dublin (Ireland)] [Department of Radiation Oncology, St. Luke's Hospital, Dublin (Ireland)

2013-01-01T23:59:59.000Z

47

Low Dose Radiation Research Program: DOE Lowdose Radiation Program Workshop  

NLE Websites -- All DOE Office Websites (Extended Search)

Using a Low LET Electron Microbeam to Investigate Non-Targeted Using a Low LET Electron Microbeam to Investigate Non-Targeted Effects of Low Dose Radiation. Authors: William F. Morgan1 and Marianne B. Sowa2 Institutions: 1Radiation Oncology Research Laboratory, University of Maryland, Baltimore MD 21201 2 Chemical Structure and Dynamics, Pacific Northwest National Laboratory, Richland WA 99352 We have recently installed a low LET electron microbeam that generates energetic electrons to mimic radiation damage from gamma and x-ray sources. It has been designed such that high-energy electrons deposit energy in a pre-selected subset of cells leaving neighboring cells unirradiated (Figure 1). In this way it is possible to examine non-targeted effects associated with low dose radiation exposure including induced genomic instability and

48

Radiation Oncology BioMed Central  

E-Print Network (OSTI)

3D-conformal-intensity modulated radiotherapy with compensators for head and neck cancer: clinical results of normal tissue sparing

Nasrin Abbasi-senger; Henning Salz; Ines Pinquart; Sven Koscielny; Susi-marie Przetak; Tilo Wiezorek

2006-01-01T23:59:59.000Z

49

Hydrogen peroxide significantly contributes to radiation-induced genomic instability  

NLE Websites -- All DOE Office Websites (Extended Search)

peroxide significantly contributes to radiation- peroxide significantly contributes to radiation- induced genomic instability Disha Dayal 1 , Sean M. Martin 1 , Sujatha Venkataraman 1 , Charles L. Limoli 2 , Douglas R Spitz 1 . 1 Free Radical and Radiation Biology Program, The University of Iowa, Iowa City, IA- 52246, 2 Department of Radiation Oncology, The University of California, Irvine, CA-92697 Chronic metabolic oxidative stress is associated with genomic instability following exposure to ionizing radiation (IR). Mitochondria have long been known to be a major source of reactive oxygen species (ROS) capable of causing oxidative stress. We hypothesized that radiation damages mitochondria, leading to oxidative stress and eventually genomic instability. This hypothesis is based on preliminary studies in parental

50

Low Dose Radiation Research Program: Research Program Workshop I Abstracts  

NLE Websites -- All DOE Office Websites (Extended Search)

Genetic Factors Affecting Susceptibility to Low-Dose Radiation Genetic Factors Affecting Susceptibility to Low-Dose Radiation William F. Morgan and John H.J. Petrini Radiation Oncology Research Laboratory, University of Maryland at Baltimore, Baltimore, MD Summary: The goal of our application is to improve the scientific basis for understanding potential risks to the population from low dose radiation exposure based on potential genetic differences that may modulate an individual's sensitivity to low doses of radiation. Abstract: The goal of this application is to improve the scientific basis for understanding potential risks to the population from low dose radiation exposure. We propose to address specific genetic factors that affect individual susceptibility to low dose radiation and ask the question do genetic differences exist that make some individuals more sensitive to

51

The Messenger Sector of SUSY Flavour Models and Radiative Breaking of Flavour Universality  

E-Print Network (OSTI)

The flavour messenger sectors and their impact on the soft SUSY breaking terms are investigated in SUSY flavour models. In the case when the flavour scale M is below the SUSY breaking mediation scale M_S, the universality of soft terms, even if assumed at M_S, is radiatively broken. We estimate this effect in a broad class of models. In the CKM basis that effect gives flavour off-diagonal soft masses comparable to the tree-level estimate based on the flavour symmetry.

Calibbi, Lorenzo; Pokorski, Stefan; Ziegler, Robert

2012-01-01T23:59:59.000Z

52

Low Dose Radiation Research Program: Radiation-Induced Nuclear Factor kB  

NLE Websites -- All DOE Office Websites (Extended Search)

Radiation-Induced Nuclear Factor kB mediates survival advantage by Radiation-Induced Nuclear Factor kB mediates survival advantage by Telomerase Activation. Authors: Natarajan M.,1 Mohan S.,2 Pandeswara, S.L.,1 and Herman T.S.1 Institutions: Departments of 1Radiation Oncology and 2Pathology, The University of Texas Health Science Center, San Antonio, Texas Activation of NF-kB in response to low doses of ionizing radiation was first shown in our laboratory. Although studies have shown that NF-kB plays an important role in anti-apoptotic function, little has been done to understand the molecular link between the activation of NF-kB and cellular outcome such as enhanced cell survival after low dose low-linear transfer (LET) radiation. Because upregulation of telomerase activity is associated with longevity and allows cells to escape from senescence, we hypothesize

53

Low-Dose Ionizing Radiation Alters the Epigenome of the Avy Mouse  

NLE Websites -- All DOE Office Websites (Extended Search)

Ionizing Radiation Alters the Epigenome of the A Ionizing Radiation Alters the Epigenome of the A vy Mouse Autumn Bernal 1,2,3 , Dale Huang 1 , Yue Li 4 , Dana Dolinoy 5 , and Randy Jirtle 1 Department of Radiation Oncology 1 , University Program in Genetics and Genomic 2 , Integrated Toxicology & Environmental Health Program 3 , Department of Community and Family Medicine 4 , Duke University Medical Center, Durham, NC, USA, Department of Environmental and Health Sciences, University of Michigan, Ann Arbor, MI, USA 4 Background: Humans have evolved and thrived amidst constant low-dose (0-10 cGy) background radiation exposure from natural sources. Currently, however, the frequency of exposures to low doses of radiation is increasing due to man-made sources such as diagnostic imaging and nuclear power. This increased exposure has led to concerns amongst the general public and the government about the

54

Introduction to veterinary clinical oncology  

SciTech Connect

Veterinary clinical oncology involves a multidisciplinary approach to the recognition and management of spontaneously occurring neoplasms of domestic animals. This requires some knowledge of the causes, incidence, and natural course of malignant disease as it occurs in domestic species. The purpose of this course is to acquaint you with the more common neoplastic problems you will encounter in practice, so that you can offer your clients an informed opinion regarding prognosis and possible therapeutic modalities. A major thrust will be directed toward discussing and encouraging treatment/management of malignant disease. Multimodality therapy will be stressed. 10 refs., 3 tabs.

Weller, R.E.

1991-10-01T23:59:59.000Z

55

Low Dose Radiation Research Program: Molecular Characterization of the  

NLE Websites -- All DOE Office Websites (Extended Search)

Molecular Characterization of the Roles of SOD Genes in Mammalian Molecular Characterization of the Roles of SOD Genes in Mammalian Cellular Response to Low Dose Radiation Authors: Chuan-Yuan Li, Zhanjun Guo, Zhonghui Yang, and Eric Chuang Institutions: Dept of Radiation Oncology, Duke University Medical Center, Durham, NC Advanced Technology Center, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland Background The potential risks of exposure to low dose radiation are of major concerns to the DOE/OBER Low Dose Radiation Research Program. It has been long recognized that much of the radiation-induced genetic damage to cells are caused by secondary oxidative species. Therefore internal cellular defense systems against oxidative stress play significant roles in countering genetic damage induced by ionizing radiation. The role of the detoxifying

56

Low Dose Radiation Research Program: 2003 Molecular Characterization of the  

NLE Websites -- All DOE Office Websites (Extended Search)

Characterization of the Roles of SOD Genes in Mammalian Characterization of the Roles of SOD Genes in Mammalian Cellular Response to Low Dose Radiation Authors: Chuan-Yuan Li,1 Eric Chuang2 Institutions: 1Dept of Radiation Oncology, Duke University Medical Center, Durham, NC, 2Advanced Technology Center, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland The potential risks of exposure to low dose radiation are of major concerns to the DOE/OBER Low Dose Radiation Research Program. It has been long recognized that much of the radiation-induced genetic damage to cells are caused by secondary oxidative species. Therefore, internal cellular defense systems against oxidative stress play significant roles in countering genetic damage induced by ionizing radiation. The role of the detoxifying

57

Low Dose Radiation Research Program: Adaptive Response of Mouse Skin  

NLE Websites -- All DOE Office Websites (Extended Search)

Adaptive Response of Mouse Skin Epithelial Cells to Low Dose Adaptive Response of Mouse Skin Epithelial Cells to Low Dose Ionizing Radiation: Induction of NF-κB, MnSOD, 14-3-3ζ and Cyclin B1 Authors: Jian Jian Li, Kazi M. Ahmed, Ming Fan, Shaozhong Dong, Douglas R. Spitz, and Cheng-Rong Yu Institutions: Division of Molecular Radiobiology, Purdue University School of Health Sciences, West Lafayette, Indiana; Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa, Iowa City, Iowa; Molecular Immunology Section, Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, Maryland Gene expression profiles demonstrate that a group of key stress-responsive genes are associated with radiation exposure and may contribute to cellular

58

Origins and consequences of radiation…induced centrosome aberrations  

NLE Websites -- All DOE Office Websites (Extended Search)

Origins and consequences of radiation-induced centrosome aberrations Origins and consequences of radiation-induced centrosome aberrations Sangeetha Vijayakumar, Nisarg Shah, Ignacio Fernandez-Garcia, Mary Helen Barcellos-Hoff Department of Radiation Oncology, New York University School of Medicine, NY, NY. Centrosome aberrations are frequently observed in pre-neoplastic breast lesions and are known to drive chromosomal instability (Lingle et al., 2002). Previous studies from our lab have shown that human mammary epithelial cells exposed to low doses of radiation exhibit centrosome aberrations (CAs) in a dose dependent manner from 10-200 cGy (Maxwell et al., 2008). These data demonstrated that radiation-induced CAs actually precede and generate genomic instability and that TGFβ is a key mediator

59

Estimation of radiation doses for atomic-bomb survivors in the Hiroshima University Registry  

Science Conference Proceedings (OSTI)

The present study presents the Hiroshima University Registry of atomic bomb survivors, of which the total number is about 270,000, and application of absorbed doses. From this registry, we picked up 49,102 survivors and applied organ doses based on the dosimetry system 1986 (DS86), which is named the Atomic Bomb Survivor 1993 Dose (ABS93D). The applied dose data are based on the tables listed in the DS86 final report such as the free-in-air kermas, the house shielding factors, and organ dose factors for the active bone marrow and the breast. Calculations for the 13 other organs provided in DS86 are possible. To obtained the organ doses for each survivor, it is necessary to obtain information concerning (1) place exposed, (2) whether they were shielded or not, and (3) age. ABS93D body transmission factors for active bone marrow for neutrons and gamma rays agreed with DS 86 to within a few percent. Of the survivors studied, 35, 123 of them were used for the relative risk estimation of leukemia mortality, adopting the same method as the Radiation Effects Research Foundation (RERF) for comparison. For the observation period from 1968 to 1989, the analyzed relative risks for leukemia mortality at 1 Gy by shielded kerm and by active bone marrow dose are 2.01 and 2.37, respectively, which are consistent with the RERF results. 11 refs., 1 fig., 3 tabs.

Hoshi, M.; Matsuura, M.; Hayakawa, N.; Kamada, N. [Hiroshima Univ., Kasumi (Japan); Ito, C. [Hiroshima A-bomb Casualty Council Health Management Promotion Center, Senda-machi Naka-ku (Japan)

1996-05-01T23:59:59.000Z

60

Low Dose Radiation Research Program: Modeling Intercellular Interactions  

NLE Websites -- All DOE Office Websites (Extended Search)

Modeling Intercellular Interactions During Radiation Carcinogenesis Modeling Intercellular Interactions During Radiation Carcinogenesis Authors: Rainer K Sachs,1 Michael Chan,2 Lynn Hlatky,3 Philip Hahnfeldt3 Institutions: 1Departments of Mathematics and Physics, University of California Berkeley California; 2School of Medicine, University of California at San Diego, La Jolla California; 3Department of Radiation Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston Massachusetts Abstract By modulating the microenvironment of malignant or pre-malignant epithelial cells, inhibitory or stimulatory signals from nearby cells, including those in stromal and vascular tissues, can play a key role in carcinogenesis; cancer is ultimately a disease of a whole-cell community, not just of a single cell, clone, or cell lineage. However, current commonly used

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61

Low Dose Radiation Research Program: Role of TNF-α as a Potential  

NLE Websites -- All DOE Office Websites (Extended Search)

Role of TNF-α as a Potential Signaling Mediator of Role of TNF-α as a Potential Signaling Mediator of Radiation-Induced Bystander Effect in Human Vascular Cells. Authors: Mohan Natarajan, Sumathy Mohan, Catherine Gibbons, Yan Bo and Munira A. Kadhim Institutions: Departments of Radiation Oncology and Pathology, University of Texas Health Science Center, San Antonio, Texas; Environmental Toxicology Graduate Program, University of California, Riverside; Radiation and Genomic Stability Unit, Medical research Council, Oxford, United Kingdom Identifying reliable and sensitive signaling pathways that are implicated in adverse health effects after exposure to low doses of ionizing radiation would allow us to understand the scientific basis of low dose-induced signaling pathways and their downstream phenotypic expression. This

62

American Society for Therapeutic Radiology and Oncology (ASTRO) Emerging Technology Committee Report on Electronic Brachytherapy  

SciTech Connect

The development of novel technologies for the safe and effective delivery of radiation is critical to advancing the field of radiation oncology. The Emerging Technology Committee of the American Society for Therapeutic Radiology and Oncology appointed a Task Group within its Evaluation Subcommittee to evaluate new electronic brachytherapy methods that are being developed for, or are already in, clinical use. The Task Group evaluated two devices, the Axxent Electronic Brachytherapy System by Xoft, Inc. (Fremont, CA), and the Intrabeam Photon Radiosurgery Device by Carl Zeiss Surgical (Oberkochen, Germany). These devices are designed to deliver electronically generated radiation, and because of their relatively low energy output, they do not fall under existing regulatory scrutiny of radioactive sources that are used for conventional radioisotope brachytherapy. This report provides a descriptive overview of the technologies, current and future projected applications, comparison of competing technologies, potential impact, and potential safety issues. The full Emerging Technology Committee report is available on the American Society for Therapeutic Radiology and Oncology Web site.

Park, Catherine C., E-mail: cpark@radonc.ucsf.ed [Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA (United States); Yom, Sue S. [Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA (United States); Podgorsak, Matthew B. [Department of Radiation Medicine, Roswell Park Cancer Institute, Buffalo, NY (United States); Harris, Eleanor [Division of Radiation Oncology, Moffitt Cancer Center, Tampa, FL (United States); Price, Robert A. [Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, PA (United States); Bevan, Alison; Pouliot, Jean [Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA (United States); Konski, Andre A. [Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, PA (United States); Wallner, Paul E. [21st Century Oncology, Inc., Ft. Myers, FL (United States)

2010-03-15T23:59:59.000Z

63

Scripting in Radiation Therapy: An Automatic 3D Beam-Naming System  

Science Conference Proceedings (OSTI)

Scripts can be executed within the radiation treatment planning software framework to reduce human error, increase treatment planning efficiency, reduce confusion, and promote consistency within an institution or even among institutions. Scripting is versatile, and one application is an automatic 3D beam-naming system that describes the position of the beam relative to the patient in 3D space. The naming system meets the need for nomenclature that is conducive for clear and accurate communication of beam entry relative to patient anatomy. In radiation oncology in particular, where miscommunication can cause significant harm to patients, a system that minimizes error is essential. Frequent sharing of radiation treatment information occurs not only among members within a department but also between different treatment centers. Descriptions of treatment beams are perhaps the most commonly shared information about a patient's course of treatment in radiation oncology. Automating the naming system by the use of a script reduces the potential for human error, improves efficiency, enforces consistency, and would allow an institution to convert to a new naming system with greater ease. This script has been implemented in the Department of Radiation Oncology at the University of Washington Medical Center since December 2009. It is currently part of the dosimetry protocol and is accessible by medical dosimetrists, radiation oncologists, and medical physicists. This paper highlights the advantages of using an automatic 3D beam-naming script to flawlessly and quickly identify treatment beams with unique names. Scripting in radiation treatment planning software has many uses and great potential for improving clinical care.

Holdsworth, Clay, E-mail: clayhholdsworth@yahoo.com [Department of Radiation Oncology, University of Washington Cancer Center, Seattle, WA (United States); Hummel-Kramer, Sharon M.; Phillips, Mark [Department of Radiation Oncology, University of Washington Cancer Center, Seattle, WA (United States)

2011-10-01T23:59:59.000Z

64

Comparing disease expression across species: an examination of radiation and species specific disease expression in Mus musculus and Peromyscus leucopus  

NLE Websites -- All DOE Office Websites (Extended Search)

disease expression across species: an examination of radiation and species specific disease expression across species: an examination of radiation and species specific disease expression in Mus musculus and Peromyscus leucopus William Liu 1 , Benjamin Haley 1 , Mary J. Kwasny 2 , Tatjana Paunesku 1 , Gayle Woloschak 1 1. Department of Radiation Oncology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611 2. Department of Preventative Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611 From 1969 to 1992, the Janus program at Argonne National Laboratory performed a large series of radiobiology experiments, examining the effects of varying doses of neutron and gamma radiation on two disparate species of mice, Mus musculus and Peromyscus leucopus. Much of this data has since been digitized and made freely accessible online. This study aims to revisit

65

Quantitative, non-invasive imaging of radiation-induced DNA double strand breaks in vivo  

NLE Websites -- All DOE Office Websites (Extended Search)

Quantitative, non-invasive imaging of radiation-induced DNA double strand breaks in vivo Quantitative, non-invasive imaging of radiation-induced DNA double strand breaks in vivo Wenrong Li 1, , Fang Li 1 , Qian Huang 1 , Jingping Shen 1 , Frank Wolf 1 , Yujun He 1 , Xinjian Liu 1 , Y. Angela Hu 1 , Joel. S. Bedford 5 , and Chuan-Yuan Li 1,2,* Departments of 1 Radiation Oncology, 2 Pharmacology, University of Colorado School of Medicine, Aurora, Colorado, USA; 3 Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA DNA double strand breaks are a major form of DNA damage and a key mechanism through which radiotherapy and some chemotherapeutic agents kill cancer cells. Despite its importance, measuring DNA double strand breaks is still a tedious task that is normally carried out by gel electrophoresis or immunofluorescence staining. Here we report a novel approach to image and

66

High LET radiatSpace Radiation Can Enhance the TGFβ InducedEpithelial-Mesenchymal Transitionion can enhance TGFβ induced EMT and cross-talk with ATM pathways  

NLE Websites -- All DOE Office Websites (Extended Search)

Radiation Can Enhance the TGFβ Induced Radiation Can Enhance the TGFβ Induced Epithelial-Mesenchymal Transition Minli Wang 1 , Megumi Hada 1 , Janice Huff 1 , Janice M. Pluth 2 , Jennifer Anderson 3 , Peter O'Neill 3 and Francis A. Cucinotta 4 1 USRA Division of Life Sciences, Houston TX USA; 2 Lawrence Berkeley National Laboratory, Berkeley CA, USA, 3 Gray Institute for Radiation Oncology & Biology, University of Oxford, UK, 4 NASA, Lyndon B. Johnson Space Center, Houston TX, USA TGFβ is a key modulator of the Epithelial-Mesenchymal Transition (EMT), important in cancer progression and metastasis, which involve classic Smad or non-Smad signaling pathways, leading to the suppression of epithelial genes and promoted expression of mesenchymal proteins. Ionizing radiation was found to specifically induce expression of

67

Radiators  

SciTech Connect

A heat-exchange radiator is connected to a fluid flow circuit by a connector which provides one member of an interengageable spigot and socket pair for push-fit, fluid-tight, engagement between the connector and the radiator, with latching formations at least one of which is resilient. Preferably the connector carries the spigot which tapers and engages with a socket of corresponding shape, the spigot carrying an O-ring seal and either latching fingers or a resilient latching circlip.

Webster, D. M.

1985-07-30T23:59:59.000Z

68

Radiation Measurements at the Campus of Fukushima Medical University through the 2011 off the Pacific Coast of Tohoku Earthquake and Subsequent Nuclear Power Plant crisis  

E-Print Network (OSTI)

An earthquake, Tohoku region Pacific Coast earthquake, occurred on the 11th of March, 2011, and subsequent Fukushima nuclear power plant accidents have been stirring natural radiation around the author's office in Fukushima Medical University (FMU). FMU is located in Fukushima city, and is 57 km (35 miles) away from northwest of the Fukushima Daiichi nuclear power plant. This paper presents three types of radiation survey undertaken through the unprecedented accidents at the campus and the hospital of FMU. First, a group of interested people immediately began radiation surveillance; the group members were assembled from the faculty members of "Life Sciences and Social Medicine" and "Human and Natural Sciences". Second, the present author, regardless of the earthquake, had serially observed natural radiations such as gamma radiation in air with NaI scintillation counter, atmospheric radon with Lucas cell, and second cosmic rays with NaI scintillation. Gamma radiation indicated most drastic change, i.e., peak v...

Kobayashi, Tsuneo

2011-01-01T23:59:59.000Z

69

Low Dose Radiation Research Program: Using a Low LET Electron Microbeam to  

NLE Websites -- All DOE Office Websites (Extended Search)

Using a Low LET Electron Microbeam to Investigate Non-Targeted Using a Low LET Electron Microbeam to Investigate Non-Targeted Effects of Low Dose Radiation Authors: William F. Morgan1 and Marianne B. Sowa2 Institutions: 1Radiation Oncology Research Laboratory, University of Maryland, Baltimore, Maryland; 2Chemical Structure and Dynamics, Pacific Northwest National Laboratory, Richland Washington We have recently installed a low-linear energy transfer (LET) electron microbeam that generates energetic electrons to mimic radiation damage from gamma- and x-ray sources. It has been designed such that high-energy electrons deposit energy in a pre-selected subset of cells, leaving neighboring cells unirradiated (Figure 1). In this way it is possible to examine non-targeted effects associated with low dose radiation exposure,

70

Disrupted epithelial morphogenesis and aberrant lineage commitment following radiation and TGFβ  

NLE Websites -- All DOE Office Websites (Extended Search)

Disrupted epithelial morphogenesis and aberrant lineage Disrupted epithelial morphogenesis and aberrant lineage commitment following radiation and TGFβ I. Fernandez-Garcia and M.H. Barcellos-Hoff Department of Radiation Oncology, New York University School of Medicine, NY. In the present study, we evaluated cell lineage plasticity and its phenotypic effects in the non-malignant human mammary epithelial cell line MCF10A in response to ionizing radiation and TGFβ. We have recently shown that the molecular profiles of mammary tumors and normal mammary gland from irradiated mice are distinct from those arising in unirradiated mice by virtue of enriched stem cell and progenitor markers. Consistent with this, we found that radiation (10-100 cGy) increases the mammary repopulation capacity in a functional and marker assays (Nguyen et al. Cancer Cell

71

UNIVERSITY OF CALIFORNIA PHYSICISTS, 1938 I Staff of the Radiation Labora-  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

CALIFORNIA PHYSICISTS, 1938 I Staff of the Radiation Labora- CALIFORNIA PHYSICISTS, 1938 I Staff of the Radiation Labora- tory and associated physicists under the yoke of the 60-inch cyclotron magnet. Left to right row 1: J. H. Lawrence, R. Serber, P. C. Aebersold, F. N. D. Kurie, R. T. Birge, E. 0. Lawrence, D. Cooksey, A. H. Snell, L. W. Alvarez, P. H. Abelson. row 2: J. G. Backus, A. Langsdorf, J. G. Hamilton, S. J. Simmons, E. M. McMillan, R. R. Wilson, W. M. Brobeck, E. M. Lyman, J. J. Livingood. row 3: D. H. Sloan, R. Cornog, M.D. Kamen, W. B. Mann, J. R. Oppenheimer, E. S. Viez, D. C. Kalbfell, W. W. Salisbury. SCIENTIFIC LEADERS OF THE S-1 PROJECT I Considering the feasibility of the 184- inch cyclotron project at Berkeley, March 29, 1940. Left to right Ernest 0. Lawrence, Arthur H. Compton, Vannevar Bush, James B. Conant, Karl T. Comp

72

Solar neutrino spectrum, sterile neutrinos and additional radiation in the Universe  

E-Print Network (OSTI)

Recent results from the SNO, Super-Kamiokande and Borexino experiments do not show the expected upturn of the energy spectrum of events (the ratio $R \\equiv N_{obs}/N_{SSM}$) at low energies. At the same time, cosmological observations testify for possible existence of additional relativistic degrees of freedom in the early Universe: $\\Delta N_{eff} = 1 - 2$. These facts strengthen the case of very light sterile neutrino, $\

P. C. de Holanda; A. Yu. Smirnov

2010-12-27T23:59:59.000Z

73

Solar and Photovoltaic Data from the University of Oregon Solar Radiation Monitoring Laboratory (UO SRML)  

DOE Data Explorer (OSTI)

The UO SRML is a regional solar radiation data center whose goal is to provide sound solar resource data for planning, design, deployment, and operation of solar electric facilities in the Pacific Northwest. The laboratory has been in operation since 1975. Solar data includes solar resource maps, cumulative summary data, daily totals, monthly averages, single element profile data, parsed TMY2 data, and select multifilter radiometer data. A data plotting program and other software tools are also provided. Shade analysis information and contour plots showing the effect of tilt and orientation on annual solar electric system perfomance make up a large part of the photovoltaics data.(Specialized Interface)

74

Modulating radiation induced TGFB and ATM signaling in the DNA...  

NLE Websites -- All DOE Office Websites (Extended Search)

TGF and ATM signaling in the DNA damage response Jennifer A. Anderson 1 , Francis A. Cucinotta 2 and Peter O'Neill 1 1 Gray Institute for Radiation Oncology and Biology,...

75

RADIATION SAFETY OFFICE UNIVERSITYOF MARYLAND  

E-Print Network (OSTI)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2. RADIATION EXPOSURE CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.2.2. Internal ExposureRADIATION SAFETY OFFICE UNIVERSITYOF MARYLAND RADIATION SAFETY MANUAL UNIVERSITY OF MARYLAND

Rubloff, Gary W.

76

Regression analysis of oncology drug licensing deal values  

E-Print Network (OSTI)

This work is an attempt to explain wide variations in drug licensing deal value by using regression modeling to describe and predict the relationship between oncology drug deal characteristics and their licensing deal ...

Hawkins, Paul Allen

2006-01-01T23:59:59.000Z

77

Yale University Radiation Safety  

E-Print Network (OSTI)

spillage in case of accident. Store liquid waste containers in secondary containers. 10. If radioactive

Haller, Gary L.

78

Low Dose Radiation Research Program: Real-time Study of Signal Transduction  

NLE Websites -- All DOE Office Websites (Extended Search)

Real-time Study of Signal Transduction Pathways Involving in Real-time Study of Signal Transduction Pathways Involving in Bystander Effects Using Single Nanoparticle Optics and Single Living Cell Imaging Authors: Prakash D. Nallathamby, X. Nancy Xu, Mohan Natarajan Institutions: Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, Virginia and Department of Radiation Oncology, The University of Texas Health Science Center, San Antonio, Texas The mechanisms of bystander effects remain largely unknown. Bystander responses are thought to depend on activation of cellular communication processes. Recent studies have speculated that several crucial signal transduction pathways could play a major role in bystander effects. These crucial signal transduction pathways are controlled by a coordinated

79

SHP-2 tyrosine phosphate-dependent focal adhesion kinase mediated cell migration of primary endothelial cells upon low LET radiation exposure  

NLE Websites -- All DOE Office Websites (Extended Search)

SHP-2 tyrosine phosphate-dependent focal adhesion kinase mediated cell SHP-2 tyrosine phosphate-dependent focal adhesion kinase mediated cell migration of primary endothelial cells upon low LET radiation exposure Xiangpeng Zheng, 1 Sumathy Mohan, 3 and Mohan Natarajan 1,2 Departments of 1 Otolaryngology, 2 Radiation Oncology, and 3 Pathology, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229 The influence and mechanism of low LET radiation exposure on wound healing process is not yet fully understood. Based on the vital role of endothelial cells in migration and wound healing, this study investigated the response of endothelial cells to low-dose irradiation and the underlying mechanism. A wound was inflicted in the confluent monolayer of primary vascular endothelial cells exposing a cell-free zone on the plate. The cells were then exposed

80

Post-doctoral Fellowships University of Washington  

E-Print Network (OSTI)

syndrome RecQ helicase in human fibroblasts. Aging Cell 6: 53-61. Sharma A, Awasthi S, Harrod CK, Matlock2010 -2011 Post-doctoral Fellowships University of Washington Seattle, WA Human RecQ helicases in biology and oncology Background: Mutations in the human RecQ helicase genes, WRN, BLM and RECQL4, lead

Monnat, Ray

Note: This page contains sample records for the topic "radiation oncology university" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

The Circadian Rhythm, A Continuous Transcription-Translation Feedback Loop, Contributes to Low-Dose Radiation-Induced Radioadaptive Response  

NLE Websites -- All DOE Office Websites (Extended Search)

The Circadian Rhythm, A Continuous Transcription-Translation Feedback Loop, Contributes to Low-Dose Radiation-Induced Radioadaptive Response Aris Alexandrou and Jian Jian Li Department of Radiation Oncology, the University of California Davis, Sacramento, California, 95817 The initiation of the circadian rhythm field occurred when the Takahashi group defined a mutation in the mouse gene "Clock" and cloned the circadian locomotor output cycles kaput (Clock) in the mid- 1990's (1-3). Currently more than a dozen clock genes have been identified (3-4). Disruptions in the circadian rhythm via changes in environmental conditions, such as, diet, temperature, and night/day hours lead to the pathogenesis of a multitude of diseases, such as, cancer, diabetes mellitus,

82

EPIDEMIOLOGICAL STUDIES ON RADIATION CARCINOGENESIS IN HUMAN POPULATIONS FOLLOWING ACUTE EXPOSURE: NUCLEAR EXPLOSIONS AND MEDICAL RADIATION  

E-Print Network (OSTI)

EPIDEMIOLOGICAL STUDIES ON RADIATION CARCINOGENESIS IN HUMANEXPLOSIONS AND MEDICAL RADIATION . Jacob I. Fabrikant, MD,Low Levels of Ionizing Radiation, Yale University School of

Fabrikant, J.I.

2010-01-01T23:59:59.000Z

83

Low dose radiation effects of multipotent neural stem and progenitor cells  

NLE Websites -- All DOE Office Websites (Extended Search)

effects of multipotent neural stem and progenitor cells effects of multipotent neural stem and progenitor cells Charles L. Limoli, Department of Radiation Oncology, University of California, Irvine 92697-2695 Multipotent neural cells (both stem cells and their precursor cell progeny) retain their capacity to proliferate and differentiate throughout the mammalian lifespan. High numbers of these cells are located within the dentate subgranular zone (SGZ) of the hippocampus and the subventricular (SVZ) zone adjacent to the lateral ventricles, where they produce cells that can migrate away and differentiate into neurons (neurogenesis) and glia (gliogenesis). The realization that the brain contains such cells has sparked intense interest and speculation regarding their potential function. While significant data

84

RADIATION SAFETY MANUAL  

E-Print Network (OSTI)

RADIATION SAFETY is the responsibility of all faculty, staff and students who are directly or indirectly involved in the use of radioisotopes or radiation-producing machines. In July 1963, the State of Texas granted The University of Texas at Austin a broad radioactive materials license for research, development and instruction. While this means a minimum of controls by the state, it requires that The University establish and pursue an effective Radiation Safety Program. The Radiation Safety Committee is responsible for The University's radiation control program outlined in this manual. The use of radiation in a university, where a large number of people may be unaware of their exposure to radiation hazards, makes strict adherence to procedures established by federal and state authorities of paramount importance for the protection of The University and the safety of its faculty, staff and students. It is the responsibility of all faculty, staff and students involved in radiation work to familiarize themselves thoroughly with The University's radiation control program and to comply with its requirements and all applicable federal and state regulations. I hope you will always keep in mind that radiation safety depends on a continuous awareness of potential hazards and on the acceptance

unknown authors

2005-01-01T23:59:59.000Z

85

Synopsis of History of American Society for Therapeutic Radiology and Oncology 1958-2008  

Science Conference Proceedings (OSTI)

Purpose: To provide a synopsis of the history of the association of radiation oncologists in the United States, currently known as the American Society for Therapeutic Radiology and Oncology (ASTRO), with the occasion of the 50th anniversary of the organization. Methods and Materials: The history of ASTRO, from its beginning as the American Club of Therapeutic Radiologists, is the subject of a book that is to be released with the occasion of the 50th Annual Meeting of the Society in 2008. This book was prepared by members of ASTRO's History Committee and History Working Subcommittee. The source material for the book was the archives of the Society and recorded interviews, conducted by members of the subcommittee, of members of the Society and of the past and present Society staff. The book was also based on previously published material. This article used the source material used for the Society anniversary book. Results: This synopsis of the history of the Society will provide a source of reference for anyone interested in the history of the Society from its foundation in 1958 to the present, 2008.

Montana, Gustavo S. [Department of Radiation Oncology, Duke University Medical Center, Durham, NC (United States)], E-mail: gustavo.montana@duke.edu

2008-10-01T23:59:59.000Z

86

Low Dose Radiation Research Program: Low Dose Radiation Research...  

NLE Websites -- All DOE Office Websites (Extended Search)

Low Dose Radiation Research: Outreach and Resources Authors: Antone L. Brooks and Lezlie A. Couch Institution: Washington State University Tri-Cities, Richland, Washington The...

87

Bridging the "Valley of Death" in stratified medicine : commercializing molecular diagnostics in oncology  

E-Print Network (OSTI)

Historically, the development of molecular companion diagnostics in oncology has underwhelmed the expectation of the medical field since the successful mapping of the human genome a decade ago. There have been several ...

Copp, Joshua

2012-01-01T23:59:59.000Z

88

Low Dose Radiation Program: Links - Organizations Conducting Radiation  

NLE Websites -- All DOE Office Websites (Extended Search)

Conducting Low Dose Radiation Research Conducting Low Dose Radiation Research DOE Low Dose Radiation Research Program DoReMi Integrating Low Dose Research High Level Expert Group (HLEG) on European Low Dose Risk Research Multidisciplinary European Low Dose Initiative (MELODI) RISC-RAD Radiosensitivity of Individuals and Susceptibility to Cancer induced by Ionizing Radiation United States Transuranium & Uranium Registries Organizations Conducting other Radiation Research Argonne National Laboratory (ANL) Armed Forces Radiology Research Institute (AFRRI) Atmospheric Radiation Measurement (ARM) Program Brookhaven National Laboratory (BNL) Center for Devices and Radiological Health (CDRH) Central Research Institute of Electric Power Industry (CRIEPI) Colorado State University Columbia University

89

DOE - Office of Legacy Management -- University of California...  

Office of Legacy Management (LM)

California Chemistry Building and Radiation Lab - CA 05 FUSRAP Considered Sites Site: UNIVERSITY OF CALIFORNIA (CHEMISTRY BUILDING AND RADIATION LABORATORY) (CA.05) Eliminated from...

90

Measuring Radiation  

NLE Websites -- All DOE Office Websites (Extended Search)

Measurement Activity SI Units and Prefixes Conversions Safety Around Radiation Sources Types of Radiation Exposure Managing Radiation Emergencies Procedure Demonstration...

91

Characterization of adaptive statistical iterative reconstruction algorithm for dose reduction in CT: A pediatric oncology perspective  

Science Conference Proceedings (OSTI)

Purpose: This study demonstrates a means of implementing an adaptive statistical iterative reconstruction (ASiR Trade-Mark-Sign ) technique for dose reduction in computed tomography (CT) while maintaining similar noise levels in the reconstructed image. The effects of image quality and noise texture were assessed at all implementation levels of ASiR Trade-Mark-Sign . Empirically derived dose reduction limits were established for ASiR Trade-Mark-Sign for imaging of the trunk for a pediatric oncology population ranging from 1 yr old through adolescence/adulthood. Methods: Image quality was assessed using metrics established by the American College of Radiology (ACR) CT accreditation program. Each image quality metric was tested using the ACR CT phantom with 0%-100% ASiR Trade-Mark-Sign blended with filtered back projection (FBP) reconstructed images. Additionally, the noise power spectrum (NPS) was calculated for three common reconstruction filters of the trunk. The empirically derived limitations on ASiR Trade-Mark-Sign implementation for dose reduction were assessed using (1, 5, 10) yr old and adolescent/adult anthropomorphic phantoms. To assess dose reduction limits, the phantoms were scanned in increments of increased noise index (decrementing mA using automatic tube current modulation) balanced with ASiR Trade-Mark-Sign reconstruction to maintain noise equivalence of the 0% ASiR Trade-Mark-Sign image. Results: The ASiR Trade-Mark-Sign algorithm did not produce any unfavorable effects on image quality as assessed by ACR criteria. Conversely, low-contrast resolution was found to improve due to the reduction of noise in the reconstructed images. NPS calculations demonstrated that images with lower frequency noise had lower noise variance and coarser graininess at progressively higher percentages of ASiR Trade-Mark-Sign reconstruction; and in spite of the similar magnitudes of noise, the image reconstructed with 50% or more ASiR Trade-Mark-Sign presented a more smoothed appearance than the pre-ASiR Trade-Mark-Sign 100% FBP image. Finally, relative to non-ASiR Trade-Mark-Sign images with 100% of standard dose across the pediatric phantom age spectrum, similar noise levels were obtained in the images at a dose reduction of 48% with 40% ASIR Trade-Mark-Sign and a dose reduction of 82% with 100% ASIR Trade-Mark-Sign . Conclusions: The authors' work was conducted to identify the dose reduction limits of ASiR Trade-Mark-Sign for a pediatric oncology population using automatic tube current modulation. Improvements in noise levels from ASiR Trade-Mark-Sign reconstruction were adapted to provide lower radiation exposure (i.e., lower mA) instead of improved image quality. We have demonstrated for the image quality standards required at our institution, a maximum dose reduction of 82% can be achieved using 100% ASiR Trade-Mark-Sign ; however, to negate changes in the appearance of reconstructed images using ASiR Trade-Mark-Sign with a medium to low frequency noise preserving reconstruction filter (i.e., standard), 40% ASiR Trade-Mark-Sign was implemented in our clinic for 42%-48% dose reduction at all pediatric ages without a visually perceptible change in image quality or image noise.

Brady, S. L.; Yee, B. S.; Kaufman, R. A. [Department of Radiological Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee 38105 (United States)

2012-09-15T23:59:59.000Z

92

For the Meyer Fund for Sustainable Development and the University of Oregon Department of Physics and the Solar Radiation Monitoring Laboratory  

E-Print Network (OSTI)

://www.californiasolarcenter.org/history_pv.html http://www.eere.energy.gov/basics/renewable_energy/solar.html http://www.nrel.gov/ncpv/ http://www.fsec.ucf.edu/en/education/index.htm http://www.nrel.gov/data/pix/searchpix.html http://www.ases.org/ http://www.seia.org/cs/about_solar_energy and the Solar Radiation Monitoring Laboratory

Oregon, University of

93

UNIVERSITY OF CALIFORNIA, DAVIS ENVIRONMENTAL HEALTH & SAFETY, HEALTH PHYSICS  

E-Print Network (OSTI)

contamination and internal exposures to radiation? Disposable gloves __X__ Disposable booties_____ Lab coat __XRUA # 1384 UNIVERSITY OF CALIFORNIA, DAVIS ENVIRONMENTAL HEALTH & SAFETY, HEALTH PHYSICS Radiation radioactive contamination and/or radiation fields? Wipes and liquid scintillation counting C. At what

Singer, Mitchell

94

NNSA, Temple University Successfully Remove Radiological Device...  

National Nuclear Security Administration (NNSA)

of Environmental Health and Radiation Safety at Temple University. The operation was led by NNSA's Global Threat Reduction Initiative (GTRI). GTRI collaborates with partner...

95

University of Missouri | .EDUconnections  

Office of Scientific and Technical Information (OSTI)

Missouri Missouri Research Research at Mizzou Vice Chancellor for Research Core Facilities Research Centers Undergraduate Research Research News & Multimedia DOE Research Reports UM Researchers in E-print Network Illumination Magazine Harnessing Radioactivity for Cancer Therapy Scientists from the University of Missouri, Oak Ridge National Lab and the University of Tennessee Graduate School of Medicine harness alpha particles for radiation cancer therapy. Gold Coated Lanthanide Phosphate Nanoparticles for Targeted Alpha Generator Radiotherapy, PLOS ONE Alpha Particle Therapy, Credit: Nathan Hurst Search this site: Search UM Columbia has a reputation of excellence in teaching and research and is the flagship campus of the four-campus University of Missouri System. Resources

96

Low Dose Radiation Research Program: Charles Limoli  

NLE Websites -- All DOE Office Websites (Extended Search)

Radiation Biology, University of California, Irvine Funded Project Radiobiology of Neural Cancer Stem Cells Publications Elmore, E., Lao, X.Y., Kapadia, R., Giedzinski, E., Limoli,...

97

About Radiation  

NLE Websites -- All DOE Office Websites (Extended Search)

Radiation What is radiation? Radiation is a form of energy that is a part of our everyday lives. All of us receive a "dose" of radiation each day. Most of the dose comes from...

98

Final Report for Research Conducted at The Scripps Institution of Oceanography, University of California San Diego from 2/2002 to 8/2003 for ''Aerosol and Cloud-Field Radiative Effects in the Tropical Western Pacific: Analyses and General Circulation Model Parameterizations''  

SciTech Connect

OAK-B135 Final report from the University of California San Diego for an ongoing research project that was moved to Brookhaven National Laboratory where proposed work will be completed. The research uses measurements made by the Atmospheric Radiation Measurement (ARM) Program to quantify the effects of aerosols and clouds on the Earth's energy balance in the climatically important Tropical Western Pacific.

Vogelmann, A. M.

2004-01-27T23:59:59.000Z

99

Princeton University  

NLE Websites -- All DOE Office Websites (Extended Search)

WHG 72711 PRINCETON UNIVERSITY INSTRUCTIONS FOR INVENTION DISCLOSURE FORM This Invention Disclosure Form is for use by University Faculty, Staff, and Students to report the...

100

Chronic Low Dose Radiation Effects on Radiation Sensitivity  

NLE Websites -- All DOE Office Websites (Extended Search)

Chronic Low Dose Radiation Effects on Radiation Sensitivity Chronic Low Dose Radiation Effects on Radiation Sensitivity and Chromosome Instability Induction in TK6 Cells Schwartz J.L. 1 , Jordan R. 1 , Slovic J. 1 , Moruzzi A. 1 , Kimmel R. 2 , and Liber, H.L. 3 1 University of Washington, Seattle, WA; 2 Fred Hutchinson Cancer Research Center, Seattle, WA; 3 Colorado State University, Fort Collins, Colorado There are a number of cell responses that can be detected after low dose radiation exposures including the adaptive response, low dose hypersensitivity, and induced genomic instability. The relationship between these different phenomena is unknown. In this study, we measured adaptive responses, low dose hypersensitivity, and induced genomic instability in a human B-lymphoblastoid cell model, TK6, where we could genetically modify radiation responses by either over-expression of BCL-2 or deletion of TP53. TK6

Note: This page contains sample records for the topic "radiation oncology university" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

RUA # _1384 UNIVERSITY OF CALIFORNIA, DAVIS  

E-Print Network (OSTI)

will be used to prevent contamination and internal exposures to radiation? Disposable gloves __X__ DisposableRUA # _1384 UNIVERSITY OF CALIFORNIA, DAVIS ENVIRONMENTAL HEALTH & SAFETY, HEALTH PHYSICS Radiation areas. B. How will you detect radioactive contamination and/or radiation fields? Wipes and liquid

Singer, Mitchell

102

Alpha Radiation  

NLE Websites -- All DOE Office Websites (Extended Search)

Basics of Radiation Basics of Radiation Gamma Radiation and X-Rays Beta Radiation Alpha Radiation Irradiation Radioactive Contamination Definitions Detection Measurement Safety Around Radiation Sources Types of Radiation Exposure Managing Radiation Emergencies Basics of Radiation Characteristics of Alpha Radiation 1. Alpha radiation is not able to penetrate skin. 2. Alpha-emitting materials can be harmful to humans if the materials are inhaled, swallowed, or absorbed through open wounds. 3. A variety of instruments have been designed to measure alpha radiation. Special training in use of these instruments is essential for making accurate measurements. 4. A civil defense instrument (CD V-700) cannot detect the presence of radioactive materials that produce alpha radiation unless the radioactive materials also produce beta and/or gamma radiation.

103

Radiation: Radiation Control (Indiana)  

Energy.gov (U.S. Department of Energy (DOE))

It is the policy of the state to encourage the constructive uses of radiation and to control its harmful effects. This section contains regulations pertaining to the manufacture, use,...

104

Isocurvature perturbations in extra radiation  

E-Print Network (OSTI)

Recent cosmological observations, including measurements of the CMB anisotropy and the primordial helium abundance, indicate the existence of an extra radiation component in the Universe beyond the standard three neutrino species. In this paper we explore the possibility that the extra radiation has isocurvatrue fluctuations. A general formalism to evaluate isocurvature perturbations in the extra radiation is provided in the mixed inflaton-curvaton system, where the extra radiation is produced by the decay of both scalar fields. We also derive constraints on the abundance of the extra radiation and the amount of its isocurvature perturbation. Current observational data favors the existence of an extra radiation component, but does not indicate its having isocurvature perturbation. These constraints are applied to some particle physics motivated models. If future observations detect isocurvature perturbations in the extra radiation, it will give us a hint to the origin of the extra radiation.

Kawasaki, Masahiro; Nakayama, Kazunori; Sekiguchi, Toyokazu

2011-01-01T23:59:59.000Z

105

STANFORD SYNCHROTRON RADIATION LIGHTSOURCE  

E-Print Network (OSTI)

-926-4100 SLAC is operated by Stanford University for the U.S. Department of Energy SSRL Facility Research Associate for Small Angle X-ray Scattering The Stanford Synchrotron Radiation Lightsource (SSRL) has) program. This position has a component (roughly 50%) that involves beam line development at SSRL

Ford, James

106

Protection Against Ionizing Radiation in Extreme Radiation ...  

Science Conference Proceedings (OSTI)

Protection Against Ionizing Radiation in Extreme Radiation-resistant Microorganisms. ... Elucidated radiation protection by intracellular halides. ...

2013-05-01T23:59:59.000Z

107

Beta Radiation  

NLE Websites -- All DOE Office Websites (Extended Search)

Beta Radiation 1. Beta radiation may travel meters in air and is moderately penetrating. 2. Beta radiation can penetrate human skin to the "germinal layer," where new skin cells...

108

RADIATION MONITORING  

E-Print Network (OSTI)

of Monitoring for Radiation Protection of Workers" in ICRPNo. 9, in "Advances in Radiation Protection and Dosimetry inDosimetry f o r Stray Radiation Monitoring on the CERN S i t

Thomas, R.H.

2010-01-01T23:59:59.000Z

109

Development and Validation of a Heart Atlas to Study Cardiac Exposure to Radiation Following Treatment for Breast Cancer  

SciTech Connect

Purpose: Cardiac toxicity is an important sequela of breast radiotherapy. However, the relationship between dose to cardiac structures and subsequent toxicity has not been well defined, partially due to variations in substructure delineation, which can lead to inconsistent dose reporting and the failure to detect potential correlations. Here we have developed a heart atlas and evaluated its effect on contour accuracy and concordance. Methods and Materials: A detailed cardiac computed tomography scan atlas was developed jointly by cardiology, cardiac radiology, and radiation oncology. Seven radiation oncologists were recruited to delineate the whole heart, left main and left anterior descending interventricular branches, and right coronary arteries on four cases before and after studying the atlas. Contour accuracy was assessed by percent overlap with gold standard atlas volumes. The concordance index was also calculated. Standard radiation fields were applied. Doses to observer-contoured cardiac structures were calculated and compared with gold standard contour doses. Pre- and post-atlas values were analyzed using a paired t test. Results: The cardiac atlas significantly improved contour accuracy and concordance. Percent overlap and concordance index of observer-contoured cardiac and gold standard volumes were 2.3-fold improved for all structures (p < 0.002). After application of the atlas, reported mean doses to the whole heart, left main artery, left anterior descending interventricular branch, and right coronary artery were within 0.1, 0.9, 2.6, and 0.6 Gy, respectively, of gold standard doses. Conclusions: This validated University of Michigan cardiac atlas may serve as a useful tool in future studies assessing cardiac toxicity and in clinical trials which include dose volume constraints to the heart.

Feng, Mary, E-mail: maryfeng@umich.ed [Department of Radiation Oncology, University of Michigan Medical Center, Ann Arbor, Michigan (United States); Moran, Jean M. [Department of Radiation Oncology, University of Michigan Medical Center, Ann Arbor, Michigan (United States); Koelling, Todd [Department of Internal Medicine, Division of Cardiology, University of Michigan Medical Center, Ann Arbor, Michigan (United States); Chughtai, Aamer [Department of Radiology, University of Michigan Medical Center, Ann Arbor, Michigan (United States); Chan, June L.; Freedman, Laura; Hayman, James A.; Jagsi, Reshma; Jolly, Shruti; Larouere, Janice; Soriano, Julie; Marsh, Robin; Pierce, Lori J. [Department of Radiation Oncology, University of Michigan Medical Center, Ann Arbor, Michigan (United States)

2011-01-01T23:59:59.000Z

110

Optical Radiation  

Science Conference Proceedings (OSTI)

*. Bookmark and Share. Optical Radiation Measurements. Fees for services are located directly below the technical contacts ...

2013-04-09T23:59:59.000Z

111

Ionizing Radiation  

Science Conference Proceedings (OSTI)

*. Bookmark and Share. Ionizing Radiation Measurements. Fees for services are located directly below the technical contacts ...

2013-04-09T23:59:59.000Z

112

Radiation Emergency Medicine Fact Sheet  

NLE Websites -- All DOE Office Websites (Extended Search)

Improving Global Response Improving Global Response to Radiation Emergencies Improving Radiation Emergency Response Through Education and Specialized Expertise In the event of a radiological or nuclear incident, first responders as well as hospital and emergency management personnel must call on their knowledge and training to provide immediate and effective care for victims. Through practical, hands-on education programs, Oak Ridge Associated Universities (ORAU) is improving global response to radiation emergencies. In addition, dedicated 24/7 deployable teams of physicians, nurses, and health physicists from the Radiation Emergency Assistance Center/Training Site (REAC/TS), which is managed by ORAU for DOE/NNSA, provide expert medical management of radiological incidents

113

The Universe Adventure - Today's Universe  

NLE Websites -- All DOE Office Websites (Extended Search)

4: Today's Accelerating Universe 4: Today's Accelerating Universe The Universe Today Dark matter has aided in forming the universe we see today; however, many questions regarding the cosmos remain. What is the status of the Universe today? We know the Universe is expanding... But what do we know about the expansion? Supernova survey. Surveys of supernova provide scientists with information about the history of the Universe. Classroom Cosmology Classroom Cosmology: Toilet Paper Cosmology In 1997 advances in telescope technology allowed astronomers to conduct redshift surveys of very distant type Ia supernovae. This enabled them to look further back into the Universe's history than previously possible. Their stunning results rivaled Hubble's original discovery and turned cosmology on its head. While most theoretical models predicted that the

114

About Radiation  

NLE Websites -- All DOE Office Websites (Extended Search)

Radiation Radiation What is radiation? Radiation is a form of energy that is a part of our everyday lives. All of us receive a "dose" of radiation each day. Most of the dose comes from naturally occurring radioactive materials such as uranium, thorium, radon, and certain forms of potassium and carbon. The air we breathe contains radon, the food we eat contains uranium and thorium from the soil, and our bodies contain radioactive forms of potassium and carbon. Cosmic radiation from the sun also contributes to our natural radiation dose. We also receive radiation doses from man-made sources such as X-rays, nuclear medical procedures, power plants, smoke detectors and older television sets. Some people, such as nuclear plant operators, flight crews, and nuclear medicine staff may also receive an occupational radiation dose.

115

PORTLAND STATE UNIVERSITY RADIATION SAFETY OPERATIONS MANUAL  

E-Print Network (OSTI)

, L.W. Tiong, L.K. Steele, J.J. Johnson, and J.L. Beck, Report NUREG/CR-6012, U.S. Nuclear Regulatory

Bertini, Robert L.

116

Western University Nuclear Radiation Safety Inspection Checklist  

E-Print Network (OSTI)

of Understanding (MOU) between USACE and the Nuclear Regulatory Commission (NRC) dated July 5, 2001, and subject for interagency consultation if the decommissioning criteria at 10 CFR Section 20.1402 are determined, resulting from the disposal of radiologically contaminated waste from the nearby Apollo Nuclear Fuel

Sinnamon, Gordon J.

117

Radiation Physics Portal  

Science Conference Proceedings (OSTI)

NIST Home > Radiation Physics Portal. Radiation Physics Portal. ... more. >> see all Radiation Physics programs and projects ... ...

2013-08-08T23:59:59.000Z

118

The Universe Adventure - Origins of the CMB  

NLE Websites -- All DOE Office Websites (Extended Search)

Origins of the CMB Decoupling of Matter The first light radiated after decoupling is now known as the CMB. During the first 380,000 years after the Big Bang, the universe was so...

119

Low Dose Radiation Research Program: Frequencies of Radiation-Induced  

NLE Websites -- All DOE Office Websites (Extended Search)

Frequencies of Radiation-Induced Chromosome Interchanges and Frequencies of Radiation-Induced Chromosome Interchanges and Randomness of Chromosome Territory Locations Relative to One Another. Authors: RK Sachs,§ MN Cornforth,‡ KM Greulich-Bode,* L Hlatky, and DJ Brenner|| Institutions: §Department of Mathematics, University of California, ‡University of Texas Medical Branch, *Department of Skin Carcinogenesis, German Cancer Research Center DFCI, Harvard Medical School, ||Center for Radiological Research, Columbia University. Leukemogenesis, and perhaps carcinogenesis in general, often involves specific chromosome translocations. Radiation-induced chromosome translocation frequencies are strongly influenced by how close participating chromosomes are to one another in an interphase cell nucleus. We sought to determine whether chromosomes in human peripheral blood

120

An adaptive radiation model for the origin of new gene functions  

E-Print Network (OSTI)

Foster, P.L. Adaptive radiation of a frameshift mutation inThe Ecology of Adaptive Radiation, (Oxford University Press,18 th , 2004) An adaptive radiation model for the origin of

Francino, M. Pilar

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "radiation oncology university" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Poll of radiation health scientists  

SciTech Connect

A sampling of 210 university-employed radiation health scientists randomly selected from the membership lists of the Health Physics Society and the Radiation Research Society was polled in a secret ballot. The results support the positions that the public's fear of radiation is substantially greater than realistic, that TV, newspapers and magazines substantially exaggerate the dangers of radiation, that the amount of money now being spent on radiation protection is sufficient, and that the openness and honesty of U.S. government agencies about dangers of radiation were below average before 1972 but have been above average since then. Respondents give very high credibility ratings to BEIR, UNSCEAR, ICRP, and NCRP and to the individual scientists associated with their reports, and very low credibility ratings to those who have disputed them.

Cohen, B.L.

1986-05-01T23:59:59.000Z

122

Low Dose Radiation Research Program: Genomic Instability and...  

NLE Websites -- All DOE Office Websites (Extended Search)

Genomic Instability and Low Dose Low Dose Rate Radiation. Authors: Lei Huang, Suzanne Grim, William F. Morgan Institutions: University of Maryland. Humans will always receive...

123

Low Dose Radiation Research Program: Bruce N. Ames  

NLE Websites -- All DOE Office Websites (Extended Search)

University of California, Berkeley Technical Abstracts 2002 Workshop: Comparison of Low-Dose Radiation, Endogenous Oxidants, and Micronutrient Deficiencies through Analyses of DNA...

124

Low Dose Radiation Research Program: Gene Expression Profiles...  

NLE Websites -- All DOE Office Websites (Extended Search)

of Energy by the University of California, Lawrence Livermore National Laboratory under Contract No. W-7405-Eng-48 with funding from the DOE Low Dose Radiation Research Program...

125

Low Dose Radiation Research Program: Susan S. Wallace  

NLE Websites -- All DOE Office Websites (Extended Search)

Susan S. Wallace University of Vermont Past Funded Project Free Radical DNA Damage Produced Endogenously and by Low Dose Radiation in Human Cells: Quantitation, Consequences, and...

126

Improvements to the SHDOM Radiative Transfer Modeling Package  

NLE Websites -- All DOE Office Websites (Extended Search)

to the SHDOM Radiative Transfer Modeling Package K. F. Evans University of Colorado Boulder, Colorado W. J. Wiscombe National Aeronautics and Space Administration...

127

COURSE NOTES: Radiation Damage in Metals (NEEP 541)  

Science Conference Proceedings (OSTI)

Feb 10, 2007 ... "Radiation Damage in Metals (NEEP 541)." Department of Engineering Physics. Fall 2005. University of Wisconsin-Madison. Launch Site

128

Radiation Cataract  

NLE Websites -- All DOE Office Websites (Extended Search)

radiation including patients undergoing diagnostic CT scans or radiotherapy, atomic bomb survivors, residents of radioactively contaminated buildings, victims of the...

129

Oncology Center  

SciTech Connect

Efforts by the Hollings Cancer Center to earn a designation as a National Cancer Center are outlined.

Kraft, Andrew S.

2009-09-21T23:59:59.000Z

130

Low Dose Radiation Research Program: Molecular Characterization...  

NLE Websites -- All DOE Office Websites (Extended Search)

the Role of SOD Genes in Mammalian Cellular Response to Low Dose Ionizing Radiation Chaun-Yuan Li Duke University Medical Center Durham, NC Why this Project? To evaluate the roles...

131

Millersville University  

E-Print Network (OSTI)

Violence Weapons Theft Use of University Equipment Section VII COMMUNICATIONS Guidelines for placing VIII EMPLOYEE SAFETY AND HEALTH Campus Emergency Procedures Threat Assessment Team Suspicious Leave Annual Leave #12; Section IX ATTENDANCE AND LEAVE continued Personal Leave Sick Leave Sick

Hardy, Christopher R.

132

Modulating radiation induced TGFβ and ATM signaling in the DNA damage  

NLE Websites -- All DOE Office Websites (Extended Search)

Modulating radiation induced TGFβ and ATM signaling in the DNA damage Modulating radiation induced TGFβ and ATM signaling in the DNA damage response Jennifer A. Anderson Gray Institute for Radiation Oncology and Biology Abstract Both the ATM and TGFβ signal transduction pathways are essential for cellular and tissue control responses to ionizing radiation and aberrant modifications to these pathways are extensive in cancer. We hypothesize that the ATM and TGFβ signaling pathways are fully induced at high doses of acute low-LET radiation, whereas only partially induced at low doses. Numerous studies have linked the p38 MAPK signaling pathway with the ATM DNA damage response, and others have shown that TGFβ stimulation results in the phosphorylation of p38 MAPK. Our aim is to perturb potential crosstalk between ATM, TGFβ and p38 MAPK at the DNA damage level and

133

Low Dose Radiation Research Program: Using a Low LET Electron Microbeam to  

NLE Websites -- All DOE Office Websites (Extended Search)

a Low LET Electron Microbeam to Investigate Non-Targeted Effects of a Low LET Electron Microbeam to Investigate Non-Targeted Effects of Low Dose Radiation William F. Morgan Radiation Oncology Research Laboratory, Pacific Northwest National Laboratory Why this Project? To examine genomic instability and bystander effects as non-targeted effects associated with low dose radiation exposure. Project Goals To provides a robust, reliable, highly sensitive assay for detecting delayed events occurring in cells exposed to low doses of ionizing radiation. Experimental Approach To mimic radiation damage from gamma and x-ray sources, a low-LET electron microbeam that generates energetic electrons has been designed such that high-energy electrons deposit energy in a pre-selected subset of cells leaving neighboring cells unirradiated. Using a novel green fluorescence gene (GFP) reporter assay, a high through

134

10th Radiation Physics and Protection Conference  

NLE Websites -- All DOE Office Websites (Extended Search)

Atomic Energy Authority National Network of Radiation Physics Atomic Energy Authority National Network of Radiation Physics 10 th Radiation Physics and Protection Conference Special Topic Elements of Regulating Nuclear and Radiation Activities Egyptian Law 26 -30 November 2010 To be held at EAEA Headquarter Nasr City Cairo - Egypt (www.rphysp.com) INVITATION The conference organizing committee invites scientists from the Atomic Energy , Research Centers , Universities Institutes , and all those involved in radiation Physics and its Applications in Egypt , Arab countries and abroad to participate in scientific activities of the conference . The official working language of the conference in English Conference Honorary Chairman Conference Scientific Secretary

135

University Research Program in Robotics - "Technologies for Micro-Electrical-Mechanical Systems in directed Stockpile Work (DSW) Radiation and Campaigns", Final Technical Annual Report, Project Period 9/1/06 - 8/31/07  

Science Conference Proceedings (OSTI)

The University Research Program in Robotics (URPR) is an integrated group of universities performing fundamental research that addresses broad-based robotics and automation needs of the NNSA Directed Stockpile Work (DSW) and Campaigns. The URPR mission is to provide improved capabilities in robotics science and engineering to meet the future needs of all weapon systems and other associated NNSA/DOE activities.

James S. Tulenko; Carl D. Crane

2007-12-13T23:59:59.000Z

136

Radiation Information  

NLE Websites -- All DOE Office Websites (Extended Search)

Radiation Information << Timeline >> Content on this page requires a newer version of Adobe Flash Player. Get Adobe Flash player July 31, 1942 The Army Corp of Engineers leases...

137

NREL's Concentrated Solar Radiation User Facility  

DOE Green Energy (OSTI)

Declared a national user facility in 1993, NREL's Concentrated Solar Radiation User Facility (CSR) allows industry, government, and university researchers to examine the effects and applications of as much as 50,000 suns of concentrated solar radiation using a High-Flux Solar Furnace and long-term exposure using an ultraviolet (UV) concentrator.

Lewandowski, A.

1999-09-01T23:59:59.000Z

138

Definition of Radiation  

NLE Websites -- All DOE Office Websites (Extended Search)

Gamma Radiation and X-Rays Beta Radiation Alpha Radiation Irradiation Radioactive Contamination Definitions Detection Measurement Safety Around Radiation Sources Types of...

139

How to Detect Radiation  

NLE Websites -- All DOE Office Websites (Extended Search)

How to Detect Radiation How to Survey Measurement Safety Around Radiation Sources Types of Radiation Exposure Managing Radiation Emergencies Procedure Demonstration Detection How...

140

SOLERAS - Saudi University Solar Cooling Laboratories Project: University of Riyadh. Solar air conditioning. Final report  

Science Conference Proceedings (OSTI)

Research on solar air conditioning at the University of Riyadh in Riyhadh, Saudi Arabia is presented. Topics relevant to the university's proposed solar cooling laboratory are discussed: absorption systems and various contingencies, photovoltaic solar collectors and thermoelectric elements, measuring instruments, solar radiation measurement and analysis, laboratory specifications, and decision theories. Dual cycle computations and equipment specifications are included among the appendices.

Not Available

1986-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "radiation oncology university" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

The Universe Adventure - Site Map  

NLE Websites -- All DOE Office Websites (Extended Search)

Index Pages Index Pages Help Teachers Credits Developers Feedback Links Glossary: A-E | F-J | K-O | P-T | U-Z Fundamentals of Cosmology Cosmology The Beginnings of Cosmology The Ancient Universe The Modern Universe -> Cosmic Conundrums: Cosmology Light The Electromagnetic Spectrum -> Movie: Travelling Photons -> Down the Rabbit Hole: At the Speed of Light -> Classroom Cosmology: The Speed of Light Apparent Magnitude -> Sidequest: Absolute and Apparent Magnitude -> Down the Rabbit Hole: Luminosity versus Observed Brightness -> Down the Rabbit Hole: Standard Candles -> Cosmic Conundrums: Light Matter Blackbody Radiation -> Movie: Temperature Matter and Atoms -> Down the Rabbit Hole: Electric Charge -> Down the Rabbit Hole: Quantum Mechanics -> Cosmic Conundrums: Matter

142

Radiation dosimeter  

DOE Patents (OSTI)

A radiation detector readout circuit is provided which produces a radiation dose-rate readout from a detector even though the detector output may be highly energy dependent. A linear charge amplifier including an output charge pump circuit amplifies the charge signal pulses from the detector and pumps the charge into a charge storage capacitor. The discharge rate of the capacitor through a resistor is controlled to provide a time-dependent voltage which when integrated provides an output proportional to the dose-rate of radiation detected by the detector. This output may be converted to digital form for readout on a digital display.

Fox, Richard J. (Oak Ridge, TN)

1983-01-01T23:59:59.000Z

143

Radiation dosimeter  

DOE Patents (OSTI)

A radiation detector readout circuit is provided which produces a radiation dose-rate readout from a detector even through the detector output may be highly energy dependent. A linear charge amplifier including an output charge pump circuit amplifies the charge signal pulses from the detector and pumps the charge into a charge storage capacitor. The discharge rate of the capacitor through a resistor is controlled to provide a time-dependent voltage which when integrated provides an output proportional to the dose-rate of radiation detected by the detector. This output may be converted to digital form for readout on a digital display.

Fox, R.J.

1981-09-01T23:59:59.000Z

144

Radiation Hydrodynamics  

DOE Green Energy (OSTI)

The discipline of radiation hydrodynamics is the branch of hydrodynamics in which the moving fluid absorbs and emits electromagnetic radiation, and in so doing modifies its dynamical behavior. That is, the net gain or loss of energy by parcels of the fluid material through absorption or emission of radiation are sufficient to change the pressure of the material, and therefore change its motion; alternatively, the net momentum exchange between radiation and matter may alter the motion of the matter directly. Ignoring the radiation contributions to energy and momentum will give a wrong prediction of the hydrodynamic motion when the correct description is radiation hydrodynamics. Of course, there are circumstances when a large quantity of radiation is present, yet can be ignored without causing the model to be in error. This happens when radiation from an exterior source streams through the problem, but the latter is so transparent that the energy and momentum coupling is negligible. Everything we say about radiation hydrodynamics applies equally well to neutrinos and photons (apart from the Einstein relations, specific to bosons), but in almost every area of astrophysics neutrino hydrodynamics is ignored, simply because the systems are exceedingly transparent to neutrinos, even though the energy flux in neutrinos may be substantial. Another place where we can do ''radiation hydrodynamics'' without using any sophisticated theory is deep within stars or other bodies, where the material is so opaque to the radiation that the mean free path of photons is entirely negligible compared with the size of the system, the distance over which any fluid quantity varies, and so on. In this case we can suppose that the radiation is in equilibrium with the matter locally, and its energy, pressure and momentum can be lumped in with those of the rest of the fluid. That is, it is no more necessary to distinguish photons from atoms, nuclei and electrons, than it is to distinguish hydrogen atoms from helium atoms, for instance. There are all just components of a mixed fluid in this case. So why do we have a special subject called ''radiation hydrodynamics'', when photons are just one of the many kinds of particles that comprise our fluid? The reason is that photons couple rather weakly to the atoms, ions and electrons, much more weakly than those particles couple with each other. Nor is the matter-radiation coupling negligible in many problems, since the star or nebula may be millions of mean free paths in extent. Radiation hydrodynamics exists as a discipline to treat those problems for which the energy and momentum coupling terms between matter and radiation are important, and for which, since the photon mean free path is neither extremely large nor extremely small compared with the size of the system, the radiation field is not very easy to calculate. In the theoretical development of this subject, many of the relations are presented in a form that is described as approximate, and perhaps accurate only to order of {nu}/c. This makes the discussion cumbersome. Why are we required to do this? It is because we are using Newtonian mechanics to treat our fluid, yet its photon component is intrinsically relativistic; the particles travel at the speed of light. There is a perfectly consistent relativistic kinetic theory, and a corresponding relativistic theory of fluid mechanics, which is perfectly suited to describing the photon gas. But it is cumbersome to use this for the fluid in general, and we prefer to avoid it for cases in which the flow velocity satisfies {nu} << c. The price we pay is to spend extra effort making sure that the source-sink terms relating to our relativistic gas component are included in the equations of motion in a form that preserves overall conservation of energy and momentum, something that would be automatic if the relativistic equations were used throughout.

Castor, J I

2003-10-16T23:59:59.000Z

145

RADIATION DETECTOR  

DOE Patents (OSTI)

A radiation detector of the type is described wherein a condenser is directly connected to the electrodes for the purpose of performing the dual function of a guard ring and to provide capacitance coupling for resetting the detector system.

Wilson, H.N.; Glass, F.M.

1960-05-10T23:59:59.000Z

146

Radiator Labs | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Radiator Labs Radiator Labs National Clean Energy Business Plan Competition Radiator Labs Columbia University More than 14 million housing units, or 10 percent of the national housing stock, is heated by steam and hot water. Steam heating, which represents the majority of this market, is particularly inefficient, and is characterized by a central source of steam generation with a convective distribution system via a network of pipes and radiators. There is no way to control heat transfer through this network, so building managers configure boiler systems to treat a building as a single zone keeping the coldest apartment above a minimum statutory temperature. This results in overheating of the other spaces in the building due to differences in exposure, level of insulation, distribution system heating,

147

Radiator Labs | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Competition » Radiator Labs Competition » Radiator Labs National Clean Energy Business Plan Competition Radiator Labs Columbia University More than 14 million housing units, or 10 percent of the national housing stock, is heated by steam and hot water. Steam heating, which represents the majority of this market, is particularly inefficient, and is characterized by a central source of steam generation with a convective distribution system via a network of pipes and radiators. There is no way to control heat transfer through this network, so building managers configure boiler systems to treat a building as a single zone keeping the coldest apartment above a minimum statutory temperature. This results in overheating of the other spaces in the building due to differences in exposure, level of insulation, distribution system heating,

148

Radiator Labs | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Competition » Radiator Labs Competition » Radiator Labs National Clean Energy Business Plan Competition Radiator Labs Columbia University More than 14 million housing units, or 10 percent of the national housing stock, is heated by steam and hot water. Steam heating, which represents the majority of this market, is particularly inefficient, and is characterized by a central source of steam generation with a convective distribution system via a network of pipes and radiators. There is no way to control heat transfer through this network, so building managers configure boiler systems to treat a building as a single zone keeping the coldest apartment above a minimum statutory temperature. This results in overheating of the other spaces in the building due to differences in exposure, level of insulation, distribution system heating,

149

NC STATE UNIVERSITY UNIVERSITY HOUSING  

E-Print Network (OSTI)

name to enter it on your application. Only current and accepted students will appear in the search box of the application process 1 #12;NC STATE UNIVERSITY SELECT THE FALL 2012 TERM 2 Once accepted by NC State, students accepting the terms and conditions associated with the Agreement. ELECTRONIC SIGNATURE #12;NC STATE

150

UNIVERSITY OF MINNESOTA University Services  

E-Print Network (OSTI)

Church Street SE Minneapolis, MN 55455-0110 Office: 612-624-3557 Fax: 612-626-6278 www.uservices.umn.edu MEMORANDUM January 29, 2010 TO: Executive Team, Twin Cities Deans, Faculty Researchers FROM: Kathleen O'Brien, Vice President Subject: Status Report on the University of Minnesota and the Central Corridor Light

Amin, S. Massoud

151

NIST Radiation thermometry  

Science Conference Proceedings (OSTI)

Radiation thermometry. Summary: ... Description: Radiation thermometers are calibrated using a range of variable-temperature blackbodies. ...

2011-10-13T23:59:59.000Z

152

NIST Optical Radiation Group  

Science Conference Proceedings (OSTI)

Optical Radiation Group. Welcome. The Optical Radiation Group maintains, improves, and disseminates the national scales ...

2013-07-29T23:59:59.000Z

153

THE FLORIDA STATE UNIVERSITY UNIVERSITY HEALTH SERVICES  

E-Print Network (OSTI)

THE FLORIDA STATE UNIVERSITY UNIVERSITY HEALTH SERVICES HEALTH & WELLNESS CENTER University Health-8958 Healthcare Compliance Information Florida State University's University Health Services (UHS) is staffed service laboratory; pickup service is available for students whose insurance requires the use of Lab Corps

Weston, Ken

154

Radiation Safety Manual  

E-Print Network (OSTI)

From University phones, dial direct............................................................................................ 555

unknown authors

2005-01-01T23:59:59.000Z

155

Radiation receiver  

SciTech Connect

The apparatus for collecting radiant energy and converting same to alternate energy form includes a housing having an interior space and a radiation transparent window allowing, for example, solar radiation to be received in the interior space of the housing. Means are provided for passing a stream of fluid past said window and for injecting radiation absorbent particles in said fluid stream. The particles absorb the radiation and because of their very large surface area, quickly release the heat to the surrounding fluid stream. The fluid stream particle mixture is heated until the particles vaporize. The fluid stream is then allowed to expand in, for example, a gas turbine to produce mechanical energy. In an aspect of the present invention properly sized particles need not be vaporized prior to the entrance of the fluid stream into the turbine, as the particles will not damage the turbine blades. In yet another aspect of the invention, conventional fuel injectors are provided to inject fuel into the fluid stream to maintain the proper temperature and pressure of the fluid stream should the source of radiant energy be interrupted. In yet another aspect of the invention, an apparatus is provided which includes means for providing a hot fluid stream having hot particles disbursed therein which can radiate energy, means for providing a cooler fluid stream having cooler particles disbursed therein, which particles can absorb radiant energy and means for passing the hot fluid stream adjacent the cooler fluid stream to warm the cooler fluid and cooler particles by the radiation from the hot fluid and hot particles.

Hunt, Arlon J. (Oakland, CA)

1983-01-01T23:59:59.000Z

156

Radiation receiver  

DOE Patents (OSTI)

The apparatus for collecting radiant energy and converting same to alternate energy form includes a housing having an interior space and a radiation transparent window allowing, for example, solar radiation to be received in the interior space of the housing. Means are provided for passing a stream of fluid past said window and for injecting radiation absorbent particles in said fluid stream. The particles absorb the radiation and because of their very large surface area, quickly release the heat to the surrounding fluid stream. The fluid stream particle mixture is heated until the particles vaporize. The fluid stream is then allowed to expand in, for example, a gas turbine to produce mechanical energy. In an aspect of the present invention properly sized particles need not be vaporized prior to the entrance of the fluid stream into the turbine, as the particles will not damage the turbine blades. In yet another aspect of the invention, conventional fuel injectors are provided to inject fuel into the fluid stream to maintain the proper temperature and pressure of the fluid stream should the source of radiant energy be interrupted. In yet another aspect of the invention, an apparatus is provided which includes means for providing a hot fluid stream having hot particles disbursed therein which can radiate energy, means for providing a cooler fluid stream having cooler particles disbursed therein, which particles can absorb radiant energy and means for passing the hot fluid stream adjacent the cooler fluid stream to warm the cooler fluid and cooler particles by the radiation from the hot fluid and hot particles. 5 figs.

Hunt, A.J.

1983-09-13T23:59:59.000Z

157

RADIATION SOURCES  

DOE Patents (OSTI)

A novel long-lived source of gamma radiation especially suitable for calibration purposes is described. The source of gamma radiation is denoted mock iodine131, which comprises a naixture of barium-133 and cesium-137. The barium and cesium are present in a barium-cesium ratio of approximately 5.7/1 to 14/1, uniformly dispersed in an ion exchange resin and a filter surrounding the resin comprised of a material of atomic number below approximately 51, and substantially 0.7 to 0.9 millimeter thick.

Brucer, M.H.

1958-04-15T23:59:59.000Z

158

University of Wisconsin Cirrus Remote Sensing Pilot Experiment  

Science Conference Proceedings (OSTI)

During the period of 26 October 1989 through 6 December 1989 a unique complement of measurements was made at the University of WisconsinMadison to study the radiative properties of cirrus clouds. Simultaneous observations were obtained from a ...

Steven A. Ackerman; William L. Smith; Ed W. Eloranta; Chris J. Grund; Robert O. Knuteson; Henry E. Revercomb; Donald P. Wylie

1993-06-01T23:59:59.000Z

159

Radiation Protection Act (Pennsylvania)  

Energy.gov (U.S. Department of Energy (DOE))

This Act combines the radiation safety provisions of The Atomic Energy Development and Radiation Control Act and the Environmental Radiation Protection Act, and empowers the Department of...

160

Radiation Tolerant Metallic Multilayers  

Science Conference Proceedings (OSTI)

Strategies that can alleviate radiation damage may assist the design of radiation tolerant materials. We will summarize our recent studies on radiation damage in...

Note: This page contains sample records for the topic "radiation oncology university" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

NEW SOURCES OF RADIATION  

E-Print Network (OSTI)

Stanford Synchrotron Radiation Project Report No. 75/07.IBL 79M0733 Fig. 20. Radiation emission pattern by electronsWinick, Stanford Synchrotron Radiation Laboratory. Fig. 21.

Schimmerling, W.

2010-01-01T23:59:59.000Z

162

Radiation-induced angiosarcoma  

E-Print Network (OSTI)

1a Figure 1b Figure 1. Radiation-induced angiosarcoma in afollowing completion of radiation therapy. Figure 2a Figurecell histiocytosis after radiation for breast carcinoma: can

Anzalone, C Lane; Cohen, Philip R; Diwan, Abdul H; Prieto, Victor G

2013-01-01T23:59:59.000Z

163

Low dose diagnostic radiation exposure and cancer risk in Trp53...  

NLE Websites -- All DOE Office Websites (Extended Search)

University Abstract The cancer risk associated with exposure to low doses of ionizing radiation has traditionally been extrapolated from effects observed at high doses and high...

164

Role of ATM kinase in ionizing radiation induced DNA damage response...  

NLE Websites -- All DOE Office Websites (Extended Search)

ATM kinase in ionizing radiation induced DNA damage response in human neural stemprogenitor cells and differentiated cell types Adayabalam Balajee Columbia University Medical...

165

Implied Dynamic Feedback of 3D IR Radiative Transfer on Simulated...  

NLE Websites -- All DOE Office Websites (Extended Search)

of 3D IR Radiative Transfer on Simulated Cloud Fields D. B. Mechem and Y. L. Kogan Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman,...

166

Opportunities in Catalysis Research Using Synchrotron Radiation  

NLE Websites -- All DOE Office Websites (Extended Search)

in Catalysis Research Using Synchrotron Radiation in Catalysis Research Using Synchrotron Radiation Tuesday 10/8/02 Chair: Lars Pettersson 1:30-1:40 Anders Nilsson Welcome 1:40-2:30 Gabor Somorjai University of California, Berkeley and LBLN Need for New Directions of Research at the Frontiers of Catalysis Science 2:30-3:00 Geoff Thornton University of Manchester Influence of defects on the reactivity of ZnO 3:00-3:30 Anders Nilsson Stanford Synchrotron Radiation Laboratory Soft X-ray Spectroscopy of Surfaces and Reactions 3:30-3:45 Break Chair: Anders Nilsson 3:45-4:15 Lars Pettersson Stockholm University Adsorbate-Substrate Bonding: An Experimental and Theoretical MO Picture 4:15-4:45 Miquel Salmeron Lawrence Berkeley National Laboratory Photoelectron Spectroscopy studies of surfaces in high pressure gas

167

Radiation properties of cavity Cerenkov radiation  

SciTech Connect

Cerenkov radiation from cavities has been analyzed by quantum electrodynamic theory. Analytical expressions of basic radiation properties such as the Einstein's A and B coefficients are derived and shown to be directly modified by the cavities. The analysis leads to the conclusion that the coherent radiation from the Cerenkov radiation devices is due to super radiance of spontaneous emission instead of stimulated emission. Coherent and incoherent radiations are analyzed in the THz radiation range.

Gao Ju; Shen Fang [Electrical and Computer Engineering Department, University of Illinois, Urbana, Illinois 61801 (United States)

2006-04-15T23:59:59.000Z

168

Types of Radiation Exposure  

NLE Websites -- All DOE Office Websites (Extended Search)

External Irradiation Contamination Incorporation Biological Effects of Acute, Total Body Irradiation Managing Radiation Emergencies Procedure Demonstration Types of radiation...

169

Radiation Effects In Ceramics  

Science Conference Proceedings (OSTI)

RADIATION MATERIALS SCIENCE IN TECHNOLOGY APPLICATIONS II: Radiation Effects in Ceramics. Sponsored by: Jt. SMD/MSD Nuclear Materials...

170

Ionizing Radiation Dosimetry  

Science Conference Proceedings (OSTI)

Ionizing Radiation Dosimetry. ... OH. US Air Force Radiation Dosimetry Laboratory, Wright-Patterson - Base, OH [100548- 0] PA. ...

2013-09-06T23:59:59.000Z

171

Radiation Physics Division  

Science Conference Proceedings (OSTI)

... The Radiation Physics Division, part of the Physical Measurement Laboratory ... the measurement standards for ionizing radiations and radioactivity ...

2013-09-05T23:59:59.000Z

172

European Integrated Project RISC-RAD Radiosensitivity of Individuals and Susceptibility to Cancer induced by Ionizing Radiations  

NLE Websites -- All DOE Office Websites (Extended Search)

Integrated Project RISC-RAD Integrated Project RISC-RAD Radiosensitivity of Individuals and Susceptibility to Cancer induced by Ionizing Radiations Laure Sabatier 1 , L.H.F Mullenders 2 , Mike Atkinson 3 , Simon Bouffler 4 , Herwig Paretzke 5 1 Laboratory of Radiobiology and Oncology, CEA, 18 route du panorama BP6 92265 Fontenay-aux- Roses, France 2 LUMC, Department of Toxicogenetics, Postal Zone S-4-P, P.O. Box 9600, 2300 RC Leiden, The Netherlands 3 GSF- Institute of Pathology, Ingolstädter Landstrasse 1, 85764 Neuherberg Germany 4 HPA Radiation Protection Division, Centre for Radiation Chemical and Environmental Hazards, Chilton, UK 5 GSF- Institute of Radiation Protection, Ingolstädter Landstrasse 1, Neuherberg, D-85764 Germany In radiological protection, the risks of inducing stochastic health effects (largely cancer) by a

173

Low Dose Radiation Research Program: Monte Carlo Track Structure...  

NLE Websites -- All DOE Office Websites (Extended Search)

Monte Carlo Track Structure Simulations for Low-LET Selected Cell Radiation Studies Walt Wilson Washington State University Tri-Cities Why This Project There are many types of...

174

Oral Histories: Radiation Biologist Marvin Goldman, Ph.D.  

NLE Websites -- All DOE Office Websites (Extended Search)

8 8 HUMAN RADIATION STUDIES: REMEMBERING THE EARLY YEARS Oral History of Radiation Biologist Marvin Goldman, Ph.D. Conducted December 22, 1994 United States Department of Energy Office of Human Radiation Experiments September 1995 CONTENTS Foreword Short Biography Educational Background and Early Involvement in Radiation Research Brookhaven Acquaintances and Early Hospital Research (Circa 1952) Vulnerable Populations and Acceptable Risks Research at the University of Rochester (1952-57) Relationship with Newell Stannard and Stafford Warren (1952-57) Participation in "Project Sunshine" and Move to the University of California, Davis (Mid '50s to '58) Participation in Beagle Studies at the University of California at Davis (1958 to '60s) Budget Concerns and Goldman's Other Radiation Research Projects (1965 to Late '60s)

175

Synchrotron Ultraviolet Radiation Facility SURF III ...  

Science Conference Proceedings (OSTI)

... Synchrotron Radiation. What is Synchrotron Radiation? Synchrotron radiation ... known. Properties of Synchrotron Radiation. Schwinger ...

176

Los Alamos provides HOPE for radiation belt storm probes  

NLE Websites -- All DOE Office Websites (Extended Search)

HOPE for radiation belt storm probes HOPE for radiation belt storm probes Los Alamos provides HOPE for radiation belt storm probes The HOPE analyzer is one of a suite of instruments that was successfully launched as part of the Radiation Belt Storm Probe mission. August 30, 2012 Artist's rendering showing two spacecraft representing the not-yet-designed Radiation Belt Storm Probes that will study the sun and its effects on Earth. PHOTO CREDIT: Johns Hopkins University Applied Physics Laboratory Artist's rendering showing two spacecraft representing the not-yet-designed Radiation Belt Storm Probes that will study the sun and its effects on Earth. PHOTO CREDIT: Johns Hopkins University Applied Physics Laboratory Contact James E. Rickman Communications Office (505) 665-9203 Email "Today we are boldly going where no spacecraft ever wants to go."

177

White Paper Synchrotron Radiation Sources for the Future  

E-Print Network (OSTI)

White Paper Synchrotron Radiation Sources for the Future Sol Gruner1,2,3 , Don Bilderback1 of Nuclear Studies (LNS) Cornell University, Ithaca, NY 14853 Source: http://erl.chess.cornell.edu/papers/WhitePaper_v41.pdf #12;WhitePaper_v41.doc 04/02/011 White Paper Synchrotron Radiation Sources for the Future Sol

Gruner, Sol M.

178

Association Between Pulmonary Uptake of Fluorodeoxyglucose Detected by Positron Emission Tomography Scanning After Radiation Therapy for Non-Small-Cell Lung Cancer and Radiation Pneumonitis  

Science Conference Proceedings (OSTI)

Purpose: To study the relationship between fluorodeoxyglucose (FDG) uptake in pulmonary tissue after radical radiation therapy (RT) and the presence and severity of radiation pneumonitis. Methods and Materials: In 88 consecutive patients, {sup 18}F-FDG-positron emission tomography was performed at a median of 70 days after completion of RT. Patients received 60 Gy in 30 fractions, and all but 15 had concurrent platinum-based chemotherapy. RT-induced pulmonary inflammatory changes occurring within the radiation treatment volume were scored, using a visual (0 to 3) radiotoxicity grading scale, by an observer blinded to the presence or absence of clinical radiation pneumonitis. Radiation pneumonitis was retrospectively graded using the Radiation Therapy Oncology Group (RTOG) scale by an observer blinded to the PET radiotoxicity score. Results: There was a significant association between the worst RTOG pneumonitis grade occurring at any time after RT and the positron emission tomograph (PET) radiotoxicity grade (one-sided p = 0.033). The worst RTOG pneumonitis grade occurring after the PET scan was also associated with the PET radiotoxicity grade (one-sided p = 0.035). For every one-level increase in the PET toxicity scale, the risk of a higher RTOG radiation pneumonitis score increased by approximately 40%. The PET radiotoxicity score showed no significant correlation with the duration of radiation pneumonitis. Conclusions: The intensity of FDG uptake in pulmonary tissue after RT determined using a simple visual scoring system showed significant correlation with the presence and severity of radiation pneumonitis. {sup 18}F-FDG-PET may be useful in the prediction, diagnosis and therapeutic monitoring of radiation pneumonitis.

Mac Manus, Michael P., E-mail: michael.macmanus@petermac.org [Department of Radiation Oncology, Peter MacCallum Cancer Institute, Melbourne (Australia); Ding Zhe [Department of Radiation Oncology, Affiliated Hospital of NingXia Medical University, YinChuan, NingXia (China); Hogg, Annette [Department of Diagnostic Imaging, Peter MacCallum Cancer Institute, Melbourne (Australia); Herschtal, Alan [Centre for Biostatistics and Clinical Trials, Peter MacCallum Cancer Institute, Melbourne (Australia); Binns, David [Department of Diagnostic Imaging, Peter MacCallum Cancer Institute, Melbourne (Australia); Ball, David L. [Department of Radiation Oncology, Peter MacCallum Cancer Institute, Melbourne (Australia); Hicks, Rodney J. [Department of Diagnostic Imaging, Peter MacCallum Cancer Institute, Melbourne (Australia)

2011-08-01T23:59:59.000Z

179

Radiation Safety  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Brotherhood of Locomotive Brotherhood of Locomotive Engineers & Trainmen Scott Palmer BLET Radiation Safety Officer New Hire Training New Hire study topics * GCOR * ABTH * SSI * Employee Safety * HazMat * Railroad terminology * OJT * 15-week class * Final test Hazardous Materials * Initial new-hire training * Required by OSHA * No specified class length * Open book test * Triennial module Locomotive Engineer Training A little bit older...a little bit wiser... * Typically 2-4 years' seniority * Pass-or-get-fired promotion * Intensive program * Perpetually tested to a higher standard * 20 Weeks of training * 15 of that is OJT * General Code of Operating Rules * Air Brake & Train Handling * System Special Instructions * Safety Instructions * Federal Regulations * Locomotive Simulators * Test Ride * Pass test with 90% Engineer Recertification

180

RADIATION COUNTER  

DOE Patents (OSTI)

This patent relates to a radiation counter, and more particularly, to a scintillation counter having high uniform sensitivity over a wide area and capable of measuring alpha, beta, and gamma contamination over wide energy ranges, for use in quickly checking the contami-nation of personnel. Several photomultiplier tubes are disposed in parallel relationship with a light tight housing behind a wall of scintillation material. Mounted within the housing with the photomultipliers are circuit means for producing an audible sound for each pulse detected, and a range selector developing a voltage proportional to the repetition rate of the detected pulses and automatically altering its time constant when the voltage reaches a predetermined value, so that manual range adjustment of associated metering means is not required.

Goldsworthy, W.W.

1958-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "radiation oncology university" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

RADIATION DOSIMETER  

DOE Patents (OSTI)

An improvement was made in the determination of amounts of ionizing radiation, particularly low-energy beta particles of less than 1000 rad total dose by means of fluid-phase dosimeter employing a stabilized-- sensitized ferrous-ferric colorimetric system in a sulphuric acid medium. The improvement in the dosimeter consists of adding to the ferrous-ferric system in concentrations of 10/sub -2/ to 10/sup -4/M an organic compound having one or more carboxylic or equivalent groups, such compounds being capable of chelating or complexing the iron ions in the solution. Suitable sensitizing and stabilizing agents are benzoic, phthalic, salicylic, malonic, lactic, maleic, oxalic, citric, succinic, phenolic tartaric, acetic, and adipic acid, as well as other compounds which are added to the solution alone or in certain combinations. As in conventional fluid-phase dosimeters, the absorbed dosage is correlated with a corresponding change in optical density at particular wavelengths of the solution.

Balkwell, W.R. Jr.; Adams, G.D. Jr.

1960-05-10T23:59:59.000Z

182

BOOMERanG Analysis Finds Flat Universe  

NLE Websites -- All DOE Office Websites (Extended Search)

BOOMERanG Analysis BOOMERanG Analysis Finds Flat Universe BOOMERanG Analysis Finds Flat Universe NERSC's Mcurie System Helps Uncover Evidence of 'Cosmological Constant' Proposed, Rejected by Einstien December 12, 1999 Newly released data from the 1997 North American test flight of BOOMERanG, which mapped anisotropies in the cosmic microwave background radiation (CMB) in a narrow strip of sky, show a pronounced peak in the CMB "power spectrum" at an angular scale of about one degree, strong evidence that the universe is flat. Analyzed at the Department of Energy's National Energy Research Scientific Computing Center (NERSC) at Lawrence Berkeley National Laboratory, the new data also suggest the existence of a cosmological constant, a form of countergravitational "dark energy" thought to fill the universe.

183

Emergent universe in spatially flat cosmological model  

E-Print Network (OSTI)

The scenario of an emergent universe provides a promising resolution to the big bang singularity in universes with positive or negative spatial curvature. It however remains unclear whether the scenario can be successfully implemented in a spatially flat universe which seems to be favored by present cosmological observations. In this paper, we study the stability of Einstein static state solutions in a spatially flat Shtanov-Sahni braneworld scenario. With a negative dark radiation term included and assuming a scalar field as the only matter energy component, we find that the universe can stay at an Einstein static state past eternally and then evolve to an inflation phase naturally as the scalar field climbs up its potential slowly. In addition, we also propose a concrete potential of the scalar field that realizes this scenario.

Kaituo Zhang; Puxun Wu; Hongwei Yu

2013-11-16T23:59:59.000Z

184

Gamma Radiation & X-Rays  

NLE Websites -- All DOE Office Websites (Extended Search)

Gamma Radiation and X-Rays 1. Gamma radiation and X-rays are electromagnetic radiation like visible light, radio waves, and ultraviolet light. These electromagnetic radiations...

185

Analyzing Surface Solar Flux Data in Oregon for Changes Due to Aerosols Laura D. Riihimaki1, Frank E. Vignola1, Charles N. Long2, James A. Coakley Jr.3 1 University of Oregon Solar Radiation Monitoring Lab 2 Pacific Northwest National Laboratory 3 Oregon State University, College of Oceanic and Atmospheric Sciences  

NLE Websites -- All DOE Office Websites (Extended Search)

76 76 1980 1984 1988 1992 1996 2000 2004 2008 100 150 200 250 Direct Normal Irradiance (W/m 2 ) Eugene Hermiston Burns 3. All-sky direct normal irradiance increases 5% per decade Eppley NIP Conclusions Annual average all-sky total and direct normal irradiance measurements show an overall increase in Oregon between 1980 and 2007. Two measurement sites show statistically significant increases in clear- sky direct normal irradiance in background periods before and after the eruption of Mt. Pinatubo [6] (1987- 2008), consistent with the hypothesis that a reduction in anthropogenic aerosols may contribute to the increase in surface irradiance. References 1. Long, C.N. and T. P. Ackerman, 2000: J. Geophys. Res., 105(D12), 15,609-15,626. 2. Long, C.N., and K.L. Gaustad, 2004: Atmospheric Radiation

186

DETECTORS FOR RADIATION DOSIMETRY  

E-Print Network (OSTI)

2) W. J. Price, "Nuclear Radiation Detection" (2nd ed. , Newand R. J. Berry, "Manual on Radiation Dosimetry" (New York:4) G. F. Knoll, "Radiation Detection and Measurement" (New

Perez-Mendez, V.

2010-01-01T23:59:59.000Z

187

The Universe Adventure - The Modern Universe  

NLE Websites -- All DOE Office Websites (Extended Search)

Modern Universe Modern Universe Like astronomers throughout history, modern cosmologists are interested in making an accurate model of the Universe. Starting with the laws of physics which explain how fundamental particles and forces interact, physicists derive general equations describing the evolution of the Universe's structure. Cosmologists use experimental evidence to select a set of initial conditions enabling them to solve the general equations, and calculate the state of the Universe at times in the past, present, or future. This generates a possible model, which can be tested by comparing the phenomena it predicts with observational data. In this manner, following the rigorous scientific method, cosmologists work to build a successful Universal model. In the next section we will examine evidence for the current Big Bang

188

Intraoperative radiation therapy using mobile electron linear accelerators: Report of AAPM Radiation Therapy Committee Task Group No. 72  

Science Conference Proceedings (OSTI)

Intraoperative radiation therapy (IORT) has been customarily performed either in a shielded operating suite located in the operating room (OR) or in a shielded treatment room located within the Department of Radiation Oncology. In both cases, this cancer treatment modality uses stationary linear accelerators. With the development of new technology, mobile linear accelerators have recently become available for IORT. Mobility offers flexibility in treatment location and is leading to a renewed interest in IORT. These mobile accelerator units, which can be transported any day of use to almost any location within a hospital setting, are assembled in a nondedicated environment and used to deliver IORT. Numerous aspects of the design of these new units differ from that of conventional linear accelerators. The scope of this Task Group (TG-72) will focus on items that particularly apply to mobile IORT electron systems. More specifically, the charges to this Task Group are to (i) identify the key differences between stationary and mobile electron linear accelerators used for IORT (ii) describe and recommend the implementation of an IORT program within the OR environment, (iii) present and discuss radiation protection issues and consequences of working within a nondedicated radiotherapy environment, (iv) describe and recommend the acceptance and machine commissioning of items that are specific to mobile electron linear accelerators, and (v) design and recommend an efficient quality assurance program for mobile systems.

Sam Beddar, A.; Biggs, Peter J.; Chang Sha; Ezzell, Gary A.; Faddegon, Bruce A.; Hensley, Frank W.; Mills, Michael D. [Department of Radiation Physics, Division of Radiation Oncology, Unit 94, University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030 (United States); Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts 02114 (United States); Department of Radiation Oncology, University of North Carolina School of Medicine, Chapel Hill, North Carolina 27599 (United States); Department of Radiation Oncology, Mayo Clinic Scottsdale, Scottsdale, Arizona 85259 (United States); Department of Radiation Oncology, University of California San Francisco, San Francisco, California 94143 (United States); Department of Radiation Oncology, University of Heidelberg, 69120 Heidelberg (Germany); Department of Radiation Oncology, James Graham Brown Cancer Center, Louisville, Kentucky 40202 (United States)

2006-05-15T23:59:59.000Z

189

Low Dose Radiation Research Program: Comparisons of IR and ROS for  

NLE Websites -- All DOE Office Websites (Extended Search)

Comparisons of IR and ROS for Induction of Damage to Cells Comparisons of IR and ROS for Induction of Damage to Cells Kathryn D. Held1, Yvonne L. McCarey1, Laurence Tartier1, Elena V. Rusyn1, Giuseppe Schettino2, Melvyn Folkard2, Kevin M. Prise2, and Barry D. Michael2 1Department of Radiation Oncology, Massachusetts General Hospital/Harvard Medical School, Boston, MA 02114; 2Gray Laboratory Cancer Research Trust, Mount Vernon Hospital, Northwood, HA6 2JR, UK Accurate evaluation of the risks associated with exposure to low doses of ionizing radiation (IR) is a major challenge for environmental sciences. Studies on the mechanisms of the actions of low doses of IR are needed to help understand possible risks. IR exerts its effects on cells through production of reactive oxidizing species (ROS) such as ·OH, H2O2 and

190

Courses on Synchrotron Radiation  

NLE Websites -- All DOE Office Websites (Extended Search)

Synchrotron Radiation The following is an incomplete list of courses on Synchrotron Radiation. For additional courses, check lightsources.org. XAFS School The APS XAFS School...

191

Radiation Physics Events  

Science Conference Proceedings (OSTI)

NIST Home > Radiation Physics Events. Radiation Physics Events. (showing 1 - 3 of 3). CIRMS 2012 Start Date: 10/22/2012 ...

2011-12-01T23:59:59.000Z

192

Bayesian Radiation Source Localization  

Science Conference Proceedings (OSTI)

Technical Paper / Special Issue on the 16th Biennial Topical Meeting of the Radiation Protection and Shielding Division / Radiation Measurements and General Instrumentation

Kenneth D. Jarman; Erin A. Miller; Richard S. Wittman; Christopher J. Gesh

193

Radiation Control (Virginia)  

Energy.gov (U.S. Department of Energy (DOE))

The Department of Health is responsible for regulating radiation and radioactive materials in the Commonwealth of Virginia. Although the Department's Radiation Control Program primarily focuses on...

194

Solar radiation resource assessment  

DOE Green Energy (OSTI)

The bulletin discusses the following: introduction; Why is solar radiation resource assessment important Understanding the basics; the solar radiation resource assessment project; and future activities.

Not Available

1990-11-01T23:59:59.000Z

195

Fudan University HSK level 6  

E-Print Network (OSTI)

of King Mongkut's University of Technology Thonburi 0 Australian National University Plasma Research

Takada, Shoji

196

ARM - Publications: Science Team Meeting Documents: Cloud Radiative Forcing  

NLE Websites -- All DOE Office Websites (Extended Search)

Cloud Radiative Forcing at the ARM Climate Research Facility: Part 2. The Cloud Radiative Forcing at the ARM Climate Research Facility: Part 2. The Vertical Redistribution of Radiant Energy by Clouds. Mace, Gerald University of Utah Benson, Sally University of Utah Kato, Seiji Hampton University/NASA Langley Research Center Documentation with data of the effects of clouds on the radiant energy balance of the surface and atmosphere represent a critical shortcoming in the set of observations that are needed to ascertain the validity of model simulations of the earth's climate. While clouds are known to cool the climate system from TOA radiation budget studies, the redistribution of energy between the surface and atmosphere and within the atmosphere by clouds has not been examined in detail. Using data collected at the Atmospheric Radiation Measurement Program (ARM) Southern Great Plains (SGP)

197

Predicting Radiation Pneumonitis After Stereotactic Ablative Radiation Therapy in Patients Previously Treated With Conventional Thoracic Radiation Therapy  

SciTech Connect

Purpose: To determine the incidence of and risk factors for radiation pneumonitis (RP) after stereotactic ablative radiation therapy (SABR) to the lung in patients who had previously undergone conventional thoracic radiation therapy. Methods and Materials: Seventy-two patients who had previously received conventionally fractionated radiation therapy to the thorax were treated with SABR (50 Gy in 4 fractions) for recurrent disease or secondary parenchymal lung cancer (T <4 cm, N0, M0, or Mx). Severe (grade {>=}3) RP and potential predictive factors were analyzed by univariate and multivariate logistic regression analyses. A scoring system was established to predict the risk of RP. Results: At a median follow-up time of 16 months after SABR (range, 4-56 months), 15 patients had severe RP (14 [18.9%] grade 3 and 1 [1.4%] grade 5) and 1 patient (1.4%) had a local recurrence. In univariate analyses, Eastern Cooperative Oncology Group performance status (ECOG PS) before SABR, forced expiratory volume in 1 second (FEV1), and previous planning target volume (PTV) location were associated with the incidence of severe RP. The V{sub 10} and mean lung dose (MLD) of the previous plan and the V{sub 10}-V{sub 40} and MLD of the composite plan were also related to RP. Multivariate analysis revealed that ECOG PS scores of 2-3 before SABR (P=.009), FEV1 {<=}65% before SABR (P=.012), V{sub 20} {>=}30% of the composite plan (P=.021), and an initial PTV in the bilateral mediastinum (P=.025) were all associated with RP. Conclusions: We found that severe RP was relatively common, occurring in 20.8% of patients, and could be predicted by an ECOG PS score of 2-3, an FEV1 {<=}65%, a previous PTV spanning the bilateral mediastinum, and V{sub 20} {>=}30% on composite (previous RT+SABR) plans. Prospective studies are needed to validate these predictors and the scoring system on which they are based.

Liu Hui; Zhang Xu [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States)] [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Vinogradskiy, Yevgeniy Y. [Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, Texas (United States)] [Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Swisher, Stephen G. [Department of Thoracic and Cardiovascular Surgery, University of Texas MD Anderson Cancer Center, Houston, Texas (United States)] [Department of Thoracic and Cardiovascular Surgery, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Komaki, Ritsuko [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States)] [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Chang, Joe Y., E-mail: jychang@mdanderson.org [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States)

2012-11-15T23:59:59.000Z

198

Low Dose Radiation Program: Radiation Biology and the Radiation Research  

NLE Websites -- All DOE Office Websites (Extended Search)

Biology and the Radiation Research Program Biology and the Radiation Research Program The Department of Energy (DOE) and its predecessor organizations, Energy Research and Development Agency (ERDA) and Atomic Energy Commission (AEC), always have been concerned about the health effects of ionizing radiation. Extensive research has been conducted under their sponsorship at all levels of biological organization from molecules to man. Over the past 60 years, studies using every type of radiation source have included exposure to both external radiation sources and to internally deposited radioactive materials. These exposures used different dose patterns and distributions delivered over a wide range of experimental times. This extensive research provided the basis for the new Low Dose Radiation Research Program, linking

199

PAR solar radiation | OpenEI  

Open Energy Info (EERE)

PAR solar radiation PAR solar radiation Dataset Summary Description (Abstract): Mean values of PAR Solar Radiation in kWh/m2/day for 40km cells for 1 year (month, season, year) based on data from 1995 to 2005 (Purpose): To provide a set of consistent, reliable, verifiable, and accessible global data sets for international and in-country investors and other stakeholders Source INPE (National Institute for Spatial Research) and LABSOLAR (Laboratory of Solar Energy/Federal University of Santa Catarina) - Brazil Date Released August 05th, 2009 (5 years ago) Date Updated August 05th, 2009 (5 years ago) Keywords INPE LABSOLAR PAR solar radiation renewable energy South America SWERA UNEP Data application/zip icon Download Shapefile (zip, 977.7 KiB) text/csv icon Download Data (csv, 1.8 MiB)

200

Sensitivity of Radiative Fluxes and Heating Rates to Cloud Microphysics  

NLE Websites -- All DOE Office Websites (Extended Search)

Sensitivity of Radiative Fluxes and Heating Sensitivity of Radiative Fluxes and Heating Rates to Cloud Microphysics S. F. Iacobellis and R. C. J. Somerville Scripps Institution of Oceanography University of California, San Diego La Jolla, California G. M. McFarquhar University of Illinois at Urbana-Champaign Urbana, Illinois D. L. Mitchell Desert Research Institute Reno, Nevada Introduction A single-column model (SCM) is used to examine the sensitivity of basic quantities such as atmospheric radiative heating rates and surface and top of atmosphere (TOA) radiative fluxes to various parameter- izations of clouds and cloud microphysics. The SCM was run at the Atmospheric Radiation Measurement (ARM) Program's Southern Great Plains (SGP), Tropical Western Pacific (TWP), and North Slope of Alaska (NSA) sites using forcing data derived from forecast products. The forecast

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to obtain the most current and comprehensive results.


201

Low Background Radiation Experiment Yields Interesting Preliminary Results  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Low Background Radiation Experiment Yields Interesting Preliminary Low Background Radiation Experiment Yields Interesting Preliminary Results Low Background Radiation Experiment Yields Interesting Preliminary Results May 18, 2011 - 12:00pm Addthis Media Contact Deb Gill U.S. DOE Carlsbad Field Office (575) 234-7270 CARLSBAD, N.M. - New Mexico State University"s Low Background Radiation Experiment (LBRE), which takes place 2,150 feet below the earth"s surface at the Waste Isolation Pilot Plant, recently released some results about the project"s first two years of experimentation. The March 2011 edition of Health Physics printed an article titled "Exploring Biological Effects of Low Level Radiation from the Other Side of Background," summarizing some initial data taken from LBRE and from a sister experiment conducted at the Lovelace Respiratory Research Institute

202

NIST MIRF - Accelerator Radiation Physics  

Science Conference Proceedings (OSTI)

Accelerator Radiation Physics. Medium-energy accelerators are under investigation for production of channeling radiation ...

203

NIST Synchrotron radiation in SSD  

Science Conference Proceedings (OSTI)

Synchrotron radiation in the Sensor Science Division. ... Synchrotron Radiation-Based Calibrations for Space Weather Prediction. ...

2011-10-18T23:59:59.000Z

204

The multiverse and the origin of our universe  

E-Print Network (OSTI)

The multiverse is a hierarchy in the number of universes, increasing stepwise towards infinity. It is an evolutionary system, in which universes survive only near critical mass. That mass is actually a factor of 1.94 less than the critical mass, and this is found to be consistent with the baryon density inferred from nucleosynthesis in our universe; it is also precisely verified as a cosmological effect. That factor seems to have originated in the multiverse for causing intersecting expansions of its universes, such that mixing occurs of debris from aging galaxies (over proton-decaying time scales). It follows that there is an inter-universal medium (IUM), probably having the demand of new universes in balance with the supply of dark radiation and sub-atomic particles from the decaying galaxies. The mixing causes the universes to have the same quantum, relativity, gravity, and particle physics as our universe. The making of a universe from the radiation and sub-atomic particles occurs through re-vitalizing the protons, and other particles as well, by gravitational energy obtained in accretion of the IUM. This process therefore begins wherever the IUM space density reaches proton density, near 10 E18 kg m E-3. The process continues quietly as the sweeping-up and gravitational accretion proceeds, until the near-critical mass is reached. Some of the IUM debris must also be pervading our present universe, steadily or in partially accreted lumps. The model therefore predicts that the IUM sub-atomic particles appear as our dark matter, and its radiation component as our dark energy, both near 0 K temperatures. The dark energy may cause expansion phenomena, in addition to the above non-flatness expansion, from an accretion lump that arrived at our universe at age near 9 x 10 E9 y.

Tom Gehrels

2007-07-06T23:59:59.000Z

205

Radiation Detection Instruments  

Science Conference Proceedings (OSTI)

Directory of Accredited Laboratories. Radiation Detection Instruments. In 2005, the Department of Homeland Security requested ...

2013-09-06T23:59:59.000Z

206

Stanford Synchrotron Radiation Lightsource  

NLE Websites -- All DOE Office Websites (Extended Search)

protein synthesis. Researchers from The Scripps Research Institute, Florida State University and the University of Texas Houston have established an essential role for an...

207

radiation.p65  

Office of Legacy Management (LM)

5 5 United States Department of Energy This fact sheet explains the potential health hazards associated with the radioactive decay of uranium and other radioactive elements found in ore and mill tailings. Potential Health Hazards of Radiation Man-made sources of radiation, most notably from medical uses and consumer products, contribute to the remaining radiation dose that individuals receive. A few household products, including smoke detectors, micro- wave ovens, and color televisions, emit small amounts of radiation. For most people, the benefits from using such products far outweigh the radiation risks. Radiation Dose Radiation is measured in various units. Individuals who have been exposed to radiation have received a radiation dose. Radiation dose to people is expressed in

208

Observational evidence favors a static universe  

E-Print Network (OSTI)

The common attribute of all Big Bang cosmologies is that they are based on the assumption that the universe is expanding. However examination of the evidence for this expansion clearly favours a static universe. The major topics considered are: Tolman surface brightness, angular size, type 1a supernovae, gamma ray bursts, galaxy distributions, quasar distributions, X-ray background radiation, cosmic microwave background radiation, radio source counts, quasar variability and the Butcher--Oemler effect. An analysis of the best raw data for these topics shows that they are consistent with expansion only if there is evolution that cancels the effects of expansion. An alternate cosmology, curvature cosmology, is in full agreement with the raw data. This tired-light cosmology predicts a well defined static and stable universe and is fully described. It not only predicts accurate values for the Hubble constant and the temperature of cosmic microwave background radiation but shows excellent agreement with most of the topics considered. Curvature cosmology also predicts the deficiency in solar neutrino production rate and can explain the anomalous acceleration of {\\it Pioneer} 10.

David F. Crawford

2010-09-05T23:59:59.000Z

209

The Universe Adventure - Expansion  

NLE Websites -- All DOE Office Websites (Extended Search)

Expansion: Chunk-by-Chunk Expansion: Chunk-by-Chunk A sample of the Universe. A very small portion of the Universe. In order to better understand the significance of expansion, let's look at a cubic sample of space. By considering a finite volume we can follow changes in the size of the Universe as we move forwards and backwards in time. Remember, only the size of the cube will change. The galaxies inside the cube stay the same size. This animation illustrates how our cubic piece of the Universe changes with time. If the Universe followed the simplest expansionary models, its size would increase linearly with time. The Universe would continue to expand at a constant rate forever. If you look at only a narrow time-slice of the Universe's history, it does, in fact, appear that this is how the Universe

210

The Universe Adventure - Credits  

NLE Websites -- All DOE Office Websites (Extended Search)

School) GraphicWeb Design Melissa McClure (student, University of Rochester) Jonathan Thai (student, UC Irvine) 2005 Summer (Universe Adventure rev 2.0) Lead Content guided by...

211

DOE Solar Decathlon: Team Ontario: Queen's University, Carleton University,  

NLE Websites -- All DOE Office Websites (Extended Search)

Team Ontario: Queen's University, Carleton University, and Algonquin Team Ontario: Queen's University, Carleton University, and Algonquin College Team website: ontariosd.ca Photo of members of the Queen's University, Carleton University, and Algonquin College Solar Decathlon 2013 team on the deck of their partially constructed house. Several members are laughing and throwing snowballs. Enlarge image The Queen's University, Carleton University, and Algonquin College Solar Decathlon 2013 team (Courtesy of the Queen's University, Carleton University, and Algonquin College Solar Decathlon 2013 team) he Queen's University, Carleton University, and Algonquin College audiovisual presentation Jury Feedback Architecture Contest Market Appeal Contest Engineering Contest Communications Contest Team Deliverables Project Manual Construction Drawings

212

University of Nebraska-Lincoln and University of Florida (Building...  

Open Energy Info (EERE)

Nebraska-Lincoln and University of Florida (Building Energy Efficient Homes for America) Jump to: navigation, search Name University of Nebraska-Lincoln and University of Florida...

213

Norwich University, Stanford University and Kentucky/Indiana...  

NLE Websites -- All DOE Office Websites (Extended Search)

of Energy, (202) 779-3295 Jason.Lutterman@ee.doe.gov Norwich University, Stanford University and Team KentuckyIndiana Take the Affordability Contest and University of...

214

Radiation Field Control Manual  

Science Conference Proceedings (OSTI)

The EPRI Radiation Management Program is dedicated to reducing nuclear power plant worker personnel exposure by developing practices and technologies to increase the radiation protection of the worker, and to implement methods to reduce radiation fields. The nuclear power industry has recently implemented the RP2020 Initiative to promote positive radiation protection trends. Control of radiation fields is crucial to one of the initiative goals of reducing exposure. This manual provides the current state ...

2004-12-16T23:59:59.000Z

215

Nevada University Transportation  

E-Print Network (OSTI)

illnesses and disabilities · Development of professionals and future leaders in the area of transportationNUTC Nevada University Transportation Center University of Nevada, Las Vegas Sustainable Transporation in Arid Regions 2007-2009 Biennial Report 5 #12;2007-2009 Nevada University Transportation Center

Ahmad, Sajjad

216

Does an accelerated electron radiate Unruh radiation?  

E-Print Network (OSTI)

An accelerated particle sees the Minkowski vacuum as thermally excited, and the particle moves stochastically due to an interaction with the thermal bath. This interaction fluctuates the particle's transverse momenta like the Brownian motion in a heat bath. Because of this fluctuating motion, it has been discussed that the accelerated charged particle emits extra radiation (the Unruh radiation) in addition to the classical Larmor radiation, and experiments are under planning to detect such radiation by using ultrahigh intensity lasers constructed in near future. There are, however, counterarguments that the radiation is canceled by an interference effect between the vacuum fluctuation and the fluctuating motion. In fact, in the case of an internal detector where the Heisenberg equation of motion can be solved exactly, there is no additional radiation after the thermalization is completed. In this paper, we revisit the issue in the case of an accelerated charged particle in the scalar QED. We first prove the e...

Iso, Satoshi; Zhang, Sen

2010-01-01T23:59:59.000Z

217

Waveshifters and Scintillators for Ionizing Radiation Detection  

Science Conference Proceedings (OSTI)

Scintillation and waveshifter materials have been developed for the detection of ionizing radiation in an STTR program between Ludlum Measurements, Inc. and the University of Notre Dame. Several new waveshifter materials have been developed which are comparable in efficiency and faster in fluorescence decay than the standard material Y11 (K27) used in particle physics for several decades. Additionally, new scintillation materials useful for fiber tracking have been developed which have been compared to 3HF. Lastly, work was done on developing liquid scintillators and paint-on scintillators and waveshifters for high radiation environments.

B.Baumgaugh; J.Bishop; D.Karmgard; J.Marchant; M.McKenna; R.Ruchti; M.Vigneault; L.Hernandez; C.Hurlbut

2007-12-11T23:59:59.000Z

218

Productive commercialization of university technology.  

E-Print Network (OSTI)

??Productive commercialization of university technology is a concern for the many stakeholders of the commercialization system. Do more total university research expenditures and more university (more)

Winder, Charles

2012-01-01T23:59:59.000Z

219

Enforcement Letter, Stony Brook University Hospital - April 15, 1999 |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Stony Brook University Hospital - April 15, Stony Brook University Hospital - April 15, 1999 Enforcement Letter, Stony Brook University Hospital - April 15, 1999 April 15, 1999 Issued to Stony Brook University Hospital related to a Failed Interlock at the Radiation Therapy Facility at the Brookhaven National Laboratory This letter refers to the Department of Energy's (DOE) evaluation of the facts and circumstances concerning an event at the Radiation Therapy Facility (RTF) occurring in March 1998. In November 1998, DOE conducted an investigation to determine whether violations of DOE's nuclear safety rules associated with the event had occurred. The resulting Investigation Summary Report was transmitted to you on February 19, 1999. On March 11, 1999, you participated in an Enforcement Conference, along with Brookhaven

220

radiation.cdr  

Office of Legacy Management (LM)

Radiation-It's a Fact of Life Radiation-It's a Fact of Life It has been with us since the beginning of time. Everyone who has ever walked on this planet has been exposed to radiation. For the most part, nature is the largest source of exposure. It's in the air we breathe, the ground we walk on, and even the food we eat. The radiation we receive from all natural and some man-made sources is called "background radiation." The millirem (mrem) is a unit used for measuring radiation received by a person. The total average background for radiation received by people living in the United States is 360 millirem per year (mrem/yr), of which 300 mrem/yr is from natural sources, and 60 mrem/yr is man-made. Cosmic Radiation from the sun and stars Internal Radiation from naturally radioactive

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to obtain the most current and comprehensive results.


221

UNIVERSITY OF CALIFORNIA, SANTA CRUZ UNIVERSITY OF CALIFORNIA OBSERVATORIES  

E-Print Network (OSTI)

UNIVERSITY OF CALIFORNIA, SANTA CRUZ UNIVERSITY OF CALIFORNIA OBSERVATORIES Postdoctoral Scholar - Employee The University of California Observatories invites applications for one Postdoctoral Scholar of funding. For appointments within the University of California, the total duration of an individual

California at Santa Cruz, University of

222

Low Dose Radiation Program: Links - General Radiation Information  

NLE Websites -- All DOE Office Websites (Extended Search)

General Radiation Information Answers to Questions about Radiation Dose Ranges Charts - tables showing radiation dose ranges from radio diagnostics to cancer radiotherapy....

223

Low Dose Radiation Program: Links - Websites about Radiation  

NLE Websites -- All DOE Office Websites (Extended Search)

Websites About Radiation The ABC's of Nuclear Science A Teacher's Guide To The Nuclear Science Wall Chart Answers to Questions about Radiation and You Background Radiation:...

224

Plutonium radiation surrogate  

DOE Patents (OSTI)

A self-contained source of gamma-ray and neutron radiation suitable for use as a radiation surrogate for weapons-grade plutonium is described. The source generates a radiation spectrum similar to that of weapons-grade plutonium at 5% energy resolution between 59 and 2614 keV, but contains no special nuclear material and emits little .alpha.-particle radiation. The weapons-grade plutonium radiation surrogate also emits neutrons having fluxes commensurate with the gamma-radiation intensities employed.

Frank, Michael I. (Dublin, CA)

2010-02-02T23:59:59.000Z

225

Gravitational Instability in Radiation Pressure Dominated Backgrounds  

E-Print Network (OSTI)

I consider the physics of gravitational instabilities in the presence of dynamically important radiation pressure and gray radiative diffusion, governed by a constant opacity, kappa. For any non-zero radiation diffusion rate on an optically-thick scale, the medium is unstable unless the classical gas-only isothermal Jeans criterion is satisfied. When diffusion is "slow," although the dynamical Jeans instability is stabilized by radiation pressure on scales smaller than the adiabatic Jeans length, on these same spatial scales the medium is unstable to a diffusive mode. In this regime, neglecting gas pressure, the characteristic timescale for growth is independent of spatial scale and given by (3 kappa c_s^2)/(4 pi G c), where c_s is the adiabatic sound speed. This timescale is that required for a fluid parcel to radiate away its thermal energy content at the Eddington limit, the Kelvin-Helmholz timescale for a radiation pressure supported self-gravitating object. In the limit of "rapid" diffusion, radiation does nothing to suppress the Jeans instability and the medium is dynamically unstable unless the gas-only Jeans criterion is satisfied. I connect with treatments of Silk damping in the early universe. I discuss several applications, including photons diffusing in regions of extreme star formation (starburst galaxies & pc-scale AGN disks), and the diffusion of cosmic rays in normal galaxies and galaxy clusters. The former (particularly, starbursts) are "rapidly" diffusing and thus cannot be supported against dynamical instability in the linear regime by radiation pressure alone. The latter are more nearly "slowly" diffusing. I speculate that the turbulence in starbursts may be driven by the dynamical coupling between the radiation field and the self-gravitating gas, perhaps mediated by magnetic fields. (Abridged)

Todd A. Thompson

2008-04-21T23:59:59.000Z

226

CENTER FOR ENVIRONMENTAL RADIATION STUDIES Texas Tech University  

E-Print Network (OSTI)

of decommissioning old nuclear power plants, building and commissioning new plants and waste disposal. The panel also Executive and the Nuclear Decommissioning Authority. The LoA group work together in areas of common interestEPSRC/STFC Review of Nuclear Physics and Nuclear Engineering A report prepared for EPSRC and STFC

Rock, Chris

227

LABORATORY OF NUCLEAR MEDICINE AND RADIATION BIOLOGY  

NLE Websites -- All DOE Office Websites (Extended Search)

MEDICINE AND RADIATION BIOLOGY MEDICINE AND RADIATION BIOLOGY 900 VETERAN AVENUE UNIVERSITY OF CALIFORNIA, LOS ANGELES, CALIFORNIA 90024 AND DEPARTMENT OF RADIOLOGICAL SCIENCES UCLA SCHOOL OF MEDICINE, LOS ANGELES, CALIFORNIA 90024 This manuscript is a contribution to the monograph edited by Daniel S. Berman and Dean Mason, entitled "Clinical Nuclear Cardiology". These studies were supported by Contract #DE-AM03-76-SF00012 between the U.S. Department of Energy and the University of California Prepared for the U.S. Department of Energy under Contract #DE-AM03-76-SF00012 POSITRON EMISSION TOMOGRAPHY OF THE HEART Heinrich R. Schelbert, M.D., Michael E. Phelps, Ph.D. and David E. Kuhl, M.D. DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the

228

NREL: Solar Radiation Research - Research Staff  

NLE Websites -- All DOE Office Websites (Extended Search)

Research Staff Research Staff NREL's resource assessment and forecasting research staff provides expertise in renewable energy measurement and instrumentation through NREL's Power Systems Engineering Center. Photo of Mary Anderberg Mary Anderberg - Scientist M.S. Physics, University of Denver B.S. Physics, Auburn University Mary performs solar radiometric data quality analysis for the U.S. Department of Energy's Atmospheric Radiation Measurement program and provides programming support for the resource integration section. She also contributed to the National Solar Radiation Database update. In addition, Mary is the Web administrator of the Renewable Resource Data Center, for which she provides UNIX, C, Perl, and HTML support. Photo of Afshín Andreas Afshín Andreas - Senior Scientist

229

Low Dose Radiation Research Program: Identification of Mouse Genetic  

NLE Websites -- All DOE Office Websites (Extended Search)

Mouse Genetic Susceptibility to Radiation Carcinogenesis Mouse Genetic Susceptibility to Radiation Carcinogenesis Allan Balmain University of California, San Francisco San Francisco, CA. (Jointly funded by NASA and DOE) Why this Project? To identify pathways that control genetic susceptibility to radiation-induced DNA damage and tumor development using novel developments in genomics together with mouse genetics. Project Goals To identify genetic loci that trigger rapid tumor development of mice after radiation. To characterize new genes at these loci that act as tumor suppressor genes or oncogenes. Experimental Approach New candidate-radiation susceptibility genes will be identified using a unique haplotyping approach. Using DNA from radiation-induced lymphoma, changes in the gene copy number can be detected using BAC microarrays. The

230

Global methylation responses to low dose radiation exposure  

NLE Websites -- All DOE Office Websites (Extended Search)

methylation responses to low dose radiation exposure methylation responses to low dose radiation exposure Pamela J Sykes, Michelle R Newman, Benjamin J Blyth and Rebecca J Ormsby Haematology and Genetic Pathology, Flinders University and Medical Centre, Flinders Centre for Cancer Prevention and Control, Bedford Park, Adelaide, South Australia 5042 Australia. (pam.sykes@flinders.edu.au). Our goal is to study the mechanisms involved in biological responses to low doses of radiation in vivo in the dose range that is relevant to population and occupational exposures. At high radiation doses, DNA double-strand breaks are considered the critical lesion underlying the initiation of radiation-induced carcinogenesis. However, at the very low radiation doses relevant for the general public, the induction of DNA double-strand breaks

231

Tachyons and Gravitational Cherenkov Radiation  

E-Print Network (OSTI)

AND GRAVITATIONAL CHERENKOV RADIATION CHARLES SCHWARTZwould emit gravitational radiation. It is very small.gravitational waves; Cherenkov radiation. In a recent work,

Schwartz, Charles

2011-01-01T23:59:59.000Z

232

Los Alamos Lab: Radiation Protection  

NLE Websites -- All DOE Office Websites (Extended Search)

Advisor Paul Hoover Special Assistant and Issues Management Coordinator Elinor Gwynn Radiation Protection Radiation Protection The Radiation Protection Division supports the...

233

Broadband Longwave Radiative Cooling Rates in Inhomogeneous Stratocumulus Clouds  

NLE Websites -- All DOE Office Websites (Extended Search)

Broadband Longwave Radiative Cooling Rates in Broadband Longwave Radiative Cooling Rates in Inhomogeneous Stratocumulus Clouds M. Ovtchinnikov and T. P. Ackerman Pacific Northwest National Laboratory Richland, Washington D. B. Mechem and Y. L. Kogan Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma R. F. Cahalan National Aeronautics and Space Administration Goddard Space Flight Center Greenbelt, Maryland A. B. Davis Los Alamos National Laboratory Los Alamos, New Mexico R. G. Ellingson and E. E.Takara Florida State University Tallahassee, Florida K. F. Evans University of Colorado Boulder, Colorado Introduction We are concerned with three-dimensional (3D) effects of longwave (LW) radiative transfer (RT) through inhomogeneous clouds. In cloud models, LW RT is typically calculated under the independent

234

Maryland Radiation Act (Maryland)  

Energy.gov (U.S. Department of Energy (DOE))

The policy of the state is to provide for the constructive use of radiation and control radiation emissions. This legislation authorizes the Department of the Environment to develop comprehensive...

235

WI Radiation Protection  

Energy.gov (U.S. Department of Energy (DOE))

This statute seeks to regulate radioactive materials, to encourage the constructive uses of radiation, and to prohibit and prevent exposure to radiation in amounts which are or may be detrimental...

236

Nonionizing Radiation and HIV  

NLE Websites -- All DOE Office Websites (Extended Search)

Nonionizing Radiation and HIV Name: Flora R Pitchford Location: NA Country: NA Date: NA Question: What are the effects of nonionizing radiation on DNA , RNA or any other cell...

237

Radiation and Ozone  

Science Conference Proceedings (OSTI)

Radiation is the driving force for the general circulation of the atmosphere and controls the Earth's climate. Ozone is responsible for the warm stratosphere and protects life on Earth from harmful solar ultraviolet radiation. In July 1959, the ...

G. Ohring; R. D. Bojkov; H-J. Bolle; R. D. Hudson; H. Volkert

2009-11-01T23:59:59.000Z

238

Radiation protection at CERN  

E-Print Network (OSTI)

This paper gives a brief overview of the general principles of radiation protection legislation; explains radiological quantities and units, including some basic facts about radioactivity and the biological effects of radiation; and gives an overview of the classification of radiological areas at CERN, radiation fields at high-energy accelerators, and the radiation monitoring system used at CERN. A short section addresses the ALARA approach used at CERN.

Forkel-Wirth, Doris; Silari, Marco; Streit-Bianchi, Marilena; Theis, Christian; Vincke, Heinz; Vincke, Helmut

2013-01-01T23:59:59.000Z

239

Radiation Dosimetry Data  

Science Conference Proceedings (OSTI)

Radiation Dosimetry Data. Stopping-Power and Range Tables for Electrons, Protons, and Helium Ions. MJ Berger The databases ...

2010-10-05T23:59:59.000Z

240

Radiation Shields Materials  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2009. Symposium, Materials Solutions for the Nuclear Renaissance. Presentation Title, Radiation...

Note: This page contains sample records for the topic "radiation oncology university" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
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241

University Connections | .EDUconnections  

Office of Scientific and Technical Information (OSTI)

Research on the "Go" with OSTI mobile Research on the "Go" with OSTI mobile Research on the "Go" with OSTI mobile Get the EDUconnections widget and many other great free widgets at Widgetbox! University Spotlight Program The U.S. Department of Energy (DOE) Office of Scientific and Technical Information (OSTI) connects with university research departments and libraries across the nation to increase awareness of DOE's valuable scientific and technical information. OSTI "spotlights" individual universities with connections to DOE scientific research programs. Visit our spotlight below to see examples of universities that are supporting and advancing scientific research and discovery! University Spotlight Visit our Spotlight Archive to learn about great colleges and universities

242

Low Dose Radiation Research Program: Induction of Genomic Instability in  

NLE Websites -- All DOE Office Websites (Extended Search)

Induction of Genomic Instability in vivo by Low Doses of 137Cs y Induction of Genomic Instability in vivo by Low Doses of 137Cs y rays, Authors: K. Rithidech1, E.B. Whorton2, M. Tungjai1, E. Ar-Bab1, S.R. Simon1, M. Tawde3 and C.W. Anderson3. Institutions: 1Pathology Department, Stony Brook University, NY 11794-8691, USA, 2University of Texas Medical Branch at Galveston, TX 77550-1047,3Biology Department, Brookhaven National Laboratory, Upton, NY 11973-5000. Information on potential health hazards of radiation at doses below or equal to the level traditionally requiring human radiation protection (less than or equal to 10 cGy) is currently lacking. It is therefore important to characterize early and subsequent in vivo biological response induced by low doses of ionizing radiation because such data should provide information that can help determine whether radiation at this dose level

243

Low Dose Radiation Research Program: Molecular Mechanisms of  

NLE Websites -- All DOE Office Websites (Extended Search)

Molecular Mechanisms of Radiation-Induced Genomic Instability in Molecular Mechanisms of Radiation-Induced Genomic Instability in Human Cells. Authors: Howard L. Liber1 and Jeffrey L. Schwartz2. Institutions: 1Colorado State University and 2University of Washington. Knowledge of the signal and target through which radiation induces genomic instability, which we propose to investigate herein, will allow us to model effects at low doses. Such knowledge will aid in understanding variations in the induction of this genomic instability, both among cells and among individuals. This information could also lead to more sensitive measures of instability that could yield accurate measures of instability induction at low doses. We have developed an in-vitro cell model, in which radiation-induced chromosome instability develops in a two-stage process.

244

The Sensitivity of Radiative Fluxes to Parameterized Cloud Microphysics  

NLE Websites -- All DOE Office Websites (Extended Search)

Sensitivity of Radiative Fluxes to Sensitivity of Radiative Fluxes to Parameterized Cloud Microphysics S. F. Iacobellis and R. C. J. Somerville Scripps Institution of Oceanography University of California San Diego, California G. M. McFarquhar University of Illinois at Urbana-Champaign Urbana, Illinois D. L. Mitchell Desert Research Institute Las Vegas, Nevada Introduction We have used a single-column model (SCM) to examine the sensitivity of fundamental quantities such as atmospheric radiative heating rates and surface and top of atmosphere (TOA) radiative fluxes to various parameterizations of clouds and cloud microphysics. When an SCM, which consists of one isolated column of a global atmospheric model, is forced with observational estimates of horizontal advection terms, the parameterizations within the SCM produce time-dependent fields which can be

245

PPPL--2702 Power Radiated from ITER  

NLE Websites -- All DOE Office Websites (Extended Search)

702 702 " Power Radiated from ITER and CIT by Impurities D E ~ O 014715 J. Cummings, S. A. Cohen, R Hulse, D. E. Post, M. H. Redi and J. Perkinst Princeton Plasma Physics Laboratory Princeton University, Rinceton, NJ 08543 Abstract The MIST code has been used to model impurity radiation from the edge and core plasmas in ITER and CIT. A broad range of parameters have been varied, including Zeff, impurity species, impurity transport coefficients, and plasma temperature and density profiles, especially at the edge. For a set of these parameters representative of the baseline ITER ignition scenario, it is seen that impurity radiation, which is produced in roughly equal amounts by the edge and core regions, can make a major improvement in divertor operation without compromising core

246

Stanford University | .EDUconnections  

Office of Scientific and Technical Information (OSTI)

Prof. Wendy Mao create amorphous diamond Stanford University Dept. of Sustainability and Energy Management Stanford School of Engineering San Francisco, bordered by the Bay and...

247

University and College Contacts  

Science Conference Proceedings (OSTI)

... University of Kentucky Office of External Scholarships Dr. Lisa Broome-Price Lisa.broome-price@uky.edu (859) 257-1537 OR Experiences in ...

2013-09-24T23:59:59.000Z

248

PULSE at Stanford University  

NLE Websites -- All DOE Office Websites (Extended Search)

Photon Science @ SLAC - LCLS - LUSI - SSRL - PULSE - Stanford University Go Search Home Publications Atomic & Molecular Physics Condensed Matter Physics Single Molecule Imaging...

249

DOE Virtual University  

Energy.gov (U.S. Department of Energy (DOE))

The Department of Energy Virtual University (DVU) is a central venue for executing, managing, partnering and sharing corporate learning activities and programs. The DVU provides employees cost...

250

Radioactivity and Radiation  

NLE Websites -- All DOE Office Websites (Extended Search)

Radioactivity and Radiation Radioactivity and Radiation Uranium and Its Compounds line line What is Uranium? Chemical Forms of Uranium Properties of Uranium Compounds Radioactivity and Radiation Uranium Health Effects Radioactivity and Radiation Discussion of radioactivity and radiation, uranium and radioactivity, radiological health risks of uranium isotopes and decay products. Radioactivity Radioactivity is the term used to describe the natural process by which some atoms spontaneously disintegrate, emitting both particles and energy as they transform into different, more stable atoms. This process, also called radioactive decay, occurs because unstable isotopes tend to transform into a more stable state. Radioactivity is measured in terms of disintegrations, or decays, per unit time. Common units of radioactivity

251

PERSONAL RADIATION MONITOR  

DOE Patents (OSTI)

A transistorized, fountain pen type radiation monitor to be worn on the person is described. Radiation produces both light flashes in a small bulb and an audible warning tone, the frequency of both the tone and light flashes being proportional to radiation intensity. The device is powered by a battery and a blocking oscillator step-up power supply The oscillator frequency- is regulated to be proportional to the radiation intensity, to provide adequate power in high radiation fields, yet minimize battery drain at low operating intensities. (AEC)

Dilworth, R.H.; Borkowski, C.J.

1961-12-26T23:59:59.000Z

252

Radiation detection system  

DOE Patents (OSTI)

A radiation detection system which utilizes the generation of Cerenkov light in and the transmission of that light longitudinally through fiber optic wave guides in order to transmit intelligence relating to the radiation to a remote location. The wave guides are aligned with respect to charged particle radiation so that the Cerenkov light, which is generated at an angle to the radiation, is accepted by the fiber for transmission therethrough. The Cerenkov radiation is detected, recorded, and analyzed at the other end of the fiber.

Nelson, Melvin A. (Santa Barbara, CA); Davies, Terence J. (Santa Barbara, CA); Morton, III, John R. (Livermore, CA)

1976-01-01T23:59:59.000Z

253

Sandia Laboratories radiation facilities  

SciTech Connect

This brochure is designed as a basic source of information for prospective users of Sandia Laboratories Radiation Facilities. It contains a brief description of the various major radiation sources, a summary of their output characteristics, and additional information useful to experimenters. Radiation source development and source upgrading is an ongoing program, with new source configurations and modes of operation continually being devised to satisfy the ever-changing radiation requirements of the users. For most cases, the information here should allow a potential user to assess the applicability of a particular radiation facility to a proposed experiment and to permit some preirradiation calculations and planning.

Choate, L.M.; Schmidt, T.R.; Schuch, R.L.

1977-07-01T23:59:59.000Z

254

TERSat: Trapped Energetic Radiation Satellite  

E-Print Network (OSTI)

Radiation damage caused by interactions with high-energy particles in the Van Allen Radiation Belts is a leading

Clements, Emily B.

2012-01-01T23:59:59.000Z

255

NIST Optical Radiation Staff Directory  

Science Conference Proceedings (OSTI)

Optical Radiation Staff Directory. Staff. Name, Position, Office Phone. ... Contact. Optical Radiation Group Eric Shirley, Group Leader. ...

2013-08-02T23:59:59.000Z

256

NVLAP Ionizing Radiation Dosimetry LAP  

Science Conference Proceedings (OSTI)

Ionizing Radiation Dosimetry LAP. ... This site has been established for applicants to the accreditation program for ionizing radiation dosimetry. ...

2013-07-23T23:59:59.000Z

257

Radiation and Biomolecular Physics Division  

Science Conference Proceedings (OSTI)

... Welcome. The Radiation and Biomolecular Physics Division is a division ... disseminate the national standards for ionizing radiations and radioactivity ...

2012-02-08T23:59:59.000Z

258

NIST Radiation Thermometry Short Course  

Science Conference Proceedings (OSTI)

NIST Radiation Thermometry Short Course. ... 2012 NIST Radiation Thermometry Short Course October 15-19, 2012 NIST Gaithersburg, Maryland. ...

2012-10-01T23:59:59.000Z

259

NIST Ionizing Radiation Division - 2001  

Science Conference Proceedings (OSTI)

... The Ionizing Radiation Division of the Physics Laboratory supports the ... meaningful, and compatible measurements of ionizing radiations (x rays ...

260

GEORGIA SOUTHERN UNIVERSITY University System of Georgia  

E-Print Network (OSTI)

specialties in accounting information systems, business intelligence, electronic commerce, enterprise resource selective student body representing 49 U.S. states and more than 100 nations. The University continues the State of Georgia and the region through the benefits of higher education, offering both campus

Hutcheon, James M.

Note: This page contains sample records for the topic "radiation oncology university" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

DOE Cites University of Chicago for Nuclear Safety Violations | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

University of Chicago for Nuclear Safety Violations University of Chicago for Nuclear Safety Violations DOE Cites University of Chicago for Nuclear Safety Violations March 7, 2006 - 11:42am Addthis WASHINGTON , DC - The Department of Energy (DOE) today issued a Preliminary Notice of Violation (PNOV) to the University of Chicago (University), the Management and Operating contractor for DOE's Argonne National Laboratory (ANL), for nuclear safety violations identified through several safety reviews and inspections conducted by DOE. A series of reviews and inspections, the most recent of which occurred in 2005, identified breakdowns in the contractor's quality improvement, radiation protection, work process, and independent and management assessment programs. Prior to 2005, senior contractor management at ANL

262

UNIVERSITY POLICE ANNUAL SECURITY  

E-Print Network (OSTI)

UNIVERSITY POLICE 2013 ANNUAL SECURITY AND FIRE SAFETY GUIDE In compliance with the Jeanne Clery Disclosure of Campus Security Policy and Campus Crime Statistics Act The University of New Orleans. Please take a moment to read the following information. #12;ANNUAL SECURITY AND FIRE SAFETY GUIDE 2013

Kulp, Mark

263

UNIVERSITIES IN TEXAS, PRIVATE  

E-Print Network (OSTI)

Caption FOR PUBLIC UNIVERSITIES IN TEXAS, PRIVATE SUPPORT IS THE ENGINE OF QUALITY. Indeed, state support (general revenues) today provides just one-third of Texas A&M University's total budget per student as Texas A&M. COLLEGE OF SCIENCE http://www.science.tamu.edu 3257 TAMU College Station

264

CORNELL UNIVERSITY POLICY LIBRARY  

E-Print Network (OSTI)

________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________ 1 Cornell University prohibits the smoking or carrying of lighted cigars, cigarettes or pipes in all Brochure Cornell University Dining Brochure Faculty Handbook Human Resource Policy 6.11.4, Staff Complaint and Grievance Procedure Student Handbook City of Ithaca Municipal Code Respiratory Effects of Passive Smoking

Manning, Sturt

265

Universal software safety standard  

Science Conference Proceedings (OSTI)

This paper identifies the minimum subset required for a truly universal safety-critical software standard. This universal software standard could be used in but is not limited to the following application domains: commercial, military and space ... Keywords: software safety, system safety, validation, verification

P. V. Bhansali

2005-09-01T23:59:59.000Z

266

Evaluating Mesoscale Model Predictions of Clouds and Radiation with SGP ARM Data over a Seasonal Timescale  

Science Conference Proceedings (OSTI)

This study evaluates the predictions of radiative and cloud-related processes of the fifth-generation Pennsylvania State UniversityNational Center for Atmospheric Research (PSUNCAR) Mesoscale Model (MM5). It is based on extensive comparison of ...

Franoise Guichard; David B. Parsons; Jimy Dudhia; James Bresch

2003-05-01T23:59:59.000Z

267

Energy Balance Partitioning and Net Radiation Controls on Soil MoisturePrecipitation Feedbacks  

Science Conference Proceedings (OSTI)

A series of model runs using the University of Oklahomas Advanced Regional Prediction System (ARPS) were conducted to investigate the relative impacts of energy balance partitioning and net radiation on soil moistureprecipitation feedbacks in ...

Aubrey R. Jones; Nathaniel A. Brunsell

2009-01-01T23:59:59.000Z

268

Quantitative Ultrasonic Evaluation of Radiation-Induced Late Tissue Toxicity: Pilot Study of Breast Cancer Radiotherapy  

Science Conference Proceedings (OSTI)

Purpose: To investigate the use of advanced ultrasonic imaging to quantitatively evaluate normal-tissue toxicity in breast-cancer radiation treatment. Methods and Materials: Eighteen breast cancer patients who received radiation treatment were enrolled in an institutional review board-approved clinical study. Radiotherapy involved a radiation dose of 50.0 to 50.4 Gy delivered to the entire breast, followed by an electron boost of 10.0 to 16.0 Gy delivered to the tumor bed. Patients underwent scanning with ultrasound during follow-up, which ranged from 6 to 94 months (median, 22 months) postradiotherapy. Conventional ultrasound images and radio-frequency (RF) echo signals were acquired from treated and untreated breasts. Three ultrasound parameters, namely, skin thickness, Pearson coefficient, and spectral midband fit, were computed from RF signals to measure radiation-induced changes in dermis, hypodermis, and subcutaneous tissue, respectively. Ultrasound parameter values of the treated breast were compared with those of the untreated breast. Ultrasound findings were compared with clinical assessment using Radiation Therapy Oncology Group (RTOG) late-toxicity scores. Results: Significant changes were observed in ultrasonic parameter values of the treated vs. untreated breasts. Average skin thickness increased by 27.3%, from 2.05 {+-} 0.22mm to 2.61 {+-} 0.52mm; Pearson coefficient decreased by 31.7%, from 0.41 {+-} 0.07 to 0.28 {+-} 0.05; and midband fit increased by 94.6%, from -0.92 {+-} 7.35 dB to 0.87 {+-} 6.70 dB. Ultrasound evaluations were consistent with RTOG scores. Conclusions: Quantitative ultrasound provides a noninvasive, objective means of assessing radiation-induced changes to the skin and subcutaneous tissue. This imaging tool will become increasingly valuable as we continue to improve radiation therapy technique.

Liu Tian, E-mail: tliu34@emory.ed [Department of Radiation Oncology, Emory University School of Medicine, Atlanta, GA (United States); Zhou Jun [Department of Radiation Oncology, Columbia University Medical Center, New York, NY (United States); Yoshida, Emi J. [Department of Radiation Oncology, Emory University School of Medicine, Atlanta, GA (United States); Woodhouse, Shermian A. [Department of Radiation Oncology, Columbia University Medical Center, New York, NY (United States); Schiff, Peter B. [Department of Radiation Oncology, Emory University School of Medicine, Atlanta, GA (United States); Wang, Tony J.C. [Department of Radiation Oncology, Columbia University Medical Center, New York, NY (United States); Lu Zhengfeng; Pile-Spellman, Eliza [Department of Radiology, Columbia University Medical Center, New York, NY (United States); Zhang Pengpeng [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, NY (United States); Kutcher, Gerald J. [Department of History, Binghamton University, Binghamton, NY (United States)

2010-11-01T23:59:59.000Z

269

Solar radiation model validation  

Science Conference Proceedings (OSTI)

Several mathematical models have been developed within the past few years which estimate the solar radiation from other weather variables. Some of these models have been used to generate data bases which are extensively used in the design and analysis of solar system. Three of these solar radiation models have been used in developing the Augmented SOLMET Solar Data Tapes for the 26 SOLMET sites and the 222 ERSATZ Solar Data Tapes. One of the models, a theoretical one, predicts the solar noon radiation for clear sky conditions from the optical air mass, precipitable water vapor and turbidity variables. A second model, an empirical one, predicts the hourly total horizontal radiation from meteorological variables. And, a third model, also an empirical one, predicts the hourly direct normal radiation from the hourly total horizontal radiation. A study of the accuracy of these three solar radiation models is reported here. To assess the accuracy of these models, data were obtained from several US National Weather Service Stations and other sources, used the models to estimate the solar-radiation, and then compared the modeled radiation values with observed radiation values. The results of these comparisons and conclusions regarding the accuracy of the models are presented.

Hall, I.J.; Prairie, R.R.; Anderson, H.E.; Boes, E.C.

1980-10-01T23:59:59.000Z

270

Oak Ridge Associated Universities  

NLE Websites -- All DOE Office Websites (Extended Search)

UT -OT IB-0064. January 2010. Center for Epidemiologic Research (CER) CER. DOE 2008 Occupational Radiation Exposure October 2009. Prepared for the U.S. Department of Energy Office...

271

UNIVERSITY OF CALIFORNIA, SANTA CRUZ UNIVERSITY OF CALIFORNIA OBSERVATORIES  

E-Print Network (OSTI)

UNIVERSITY OF CALIFORNIA, SANTA CRUZ UNIVERSITY OF CALIFORNIA OBSERVATORIES POSTDOCTORAL SCHOLAR ­ EMPLOYEE The University of California Observatories invites applications for one Postdoctoral Scholar of California, the total duration of an individual's postdoctoral service may not exceed five years, including

California at Santa Cruz, University of

272

Molecular Mechanism Underlying Cellular Adaptive Response to Low Dose Radiation  

NLE Websites -- All DOE Office Websites (Extended Search)

Mechanism Underlying Cellular Adaptive Response to Low Dose Radiation Mechanism Underlying Cellular Adaptive Response to Low Dose Radiation Colette A. Sacksteder § , DJ Black ‡ , Heather Smallwood § , David G. Camp II † , and Thomas C. Squier § § Cell Biology and Biochemistry; † Biological Sciences Division Pacific Northwest National Laboratory, Richland WA 99352 ‡ School of Biological Sciences, University of Missouri, Kansas City MO 64110 The goal of this research is to identify the molecular mechanisms by which cells adapt to low dose radiation exposure. Previously we have shown a radiation dependent increase of Calmodulin (CaM) in RAW 264.7 macrophages (RAW). Therefore we hypothesize that CaM and associated signaling complexes are sensors of low-dose radiation, resulting in alterations in energy metabolism and gene expression. The ultimate experimental goal

273

ARM - Field Campaign - RAdiative Divergence using AMF, GERB and AMMA  

NLE Websites -- All DOE Office Websites (Extended Search)

govCampaignsRAdiative Divergence using AMF, GERB and AMMA STations govCampaignsRAdiative Divergence using AMF, GERB and AMMA STations (RADAGAST) Campaign Links AMF Niamey Deployment AMF Niamey Data Plots RADAGAST Website Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : RAdiative Divergence using AMF, GERB and AMMA STations (RADAGAST) 2006.01.01 - 2007.01.07 Website : http://www.arm.gov/sites/amf/nim Lead Scientist : Anthony Slingo Description Science Plan for the ARM Mobile Facility deployment to Niamey, 2006 Draft: 3 February 2005 Anthony Slingo, Environmental Systems Science Centre, University of Reading, UK 1. Background Despite a great deal of effort over many years, significant disagreements persist between estimates of the partitioning of the Earth's radiation budget between the atmosphere and surface. While the radiation budget at

274

Atmospheric Radiation Measurement Program  

NLE Websites -- All DOE Office Websites (Extended Search)

3 3 ARM 2003 Tom Ackerman Chief Scientist Tom Ackerman Chief Scientist ARM ARM Atmospheric Radiation Measurement Atmospheric Radiation Measurement WARNING! WARNING! Today is April 1 But that has NO bearing on this message Today is April 1 But that has NO bearing on this message ARM ARM Atmospheric Radiation Measurement Atmospheric Radiation Measurement Two Topics Two Topics * Status of ARM (quick overview) * Science plan - ARM in the next 5 years * Status of ARM (quick overview) * Science plan - ARM in the next 5 years ARM ARM Atmospheric Radiation Measurement Atmospheric Radiation Measurement ARM Status - Science ARM Status - Science * Steadily increasing productivity - Poster session - over 220 posters (may need to do something about submissions next year) - Peer-reviewed articles: 2.5 to 3 per year per

275

RADIATION WAVE DETECTION  

DOE Patents (OSTI)

Radiation waves can be detected by simultaneously measuring radiation- wave intensities at a plurality of space-distributed points and producing therefrom a plot of the wave intensity as a function of time. To this end. a detector system is provided which includes a plurality of nuclear radiation intensity detectors spaced at equal radial increments of distance from a source of nuclear radiation. Means are provided to simultaneously sensitize the detectors at the instant a wave of radiation traverses their positions. the detectors producing electrical pulses indicative of wave intensity. The system further includes means for delaying the pulses from the detectors by amounts proportional to the distance of the detectors from the source to provide an indication of radiation-wave intensity as a function of time.

Wouters, L.F.

1960-08-30T23:59:59.000Z

276

Radiation effects in the environment  

Science Conference Proceedings (OSTI)

Although the Navajo possess substantial resource wealth-coal, gas, uranium, water-this potential wealth has been translated into limited permanent economic or political power. In fact, wealth or potential for wealth has often made the Navajo the victims of more powerful interests greedy for the assets under limited Navajo control. The primary focus for this education workshop on the radiation effects in the environment is to provide a forum where scientists from the nuclear science and technology community can share their knowledge toward the advancement and diffusion of nuclear science and technology issues for the Navajo public. The scientists will make an attempt to consider the following basic questions; what is science; what is mathematics; what is nuclear radiation? Seven papers are included in this report: Navajo view of radiation; Nuclear energy, national security and international stability; ABC`s of nuclear science; Nuclear medicine: 100 years in the making; Radon in the environment; Bicarbonate leaching of uranium; and Computational methods for subsurface flow and transport. The proceedings of this workshop will be used as a valuable reference materials in future workshops and K-14 classrooms in Navajo communities that need to improve basic understanding of nuclear science and technology issues. Results of the Begay-Stevens research has revealed the existence of strange and mysterious concepts in the Navajo Language of nature. With these research results Begay and Stevens prepared a lecture entitled The Physics of Laser Fusion in the Navajo language. This lecture has been delivered in numerous Navajo schools, and in universities and colleges in the US, Canada, and Alaska.

Begay, F.; Rosen, L.; Petersen, D.F.; Mason, C.; Travis, B. [Los Alamos National Lab., NM (United States); Yazzie, A. [Navajo Nation, Window Rock, AZ (United States). Dept. of History; Isaac, M.C.P.; Seaborg, G.T. [Lawrence Berkeley National Lab., CA (United States); Leavitt, C.P. [Univ. of New Mexico, Albuquerque, NM (United States). Dept. of Physics and Astronomy

1999-04-01T23:59:59.000Z

277

Director, health Physics Office Columbia University  

Office of Legacy Management (LM)

f. 3 -J f. 3 -J Mr. Philip tori0 Director, health Physics Office Columbia University 289 Engineering Terrace 520 West 120th Street New York, New York 10027 NY.3 "I A\, 4 f- ' :""5 . . ;. ,_ i._ ' L, Dear Mr. Lorio: The Department of Energy (DOE), as part of its Formerly Utilized Sites Remedial Action Program (FUSRAP), has reviewed information on Columbia University facilities to determine whether they contain residual radioactivity traceable to activities conducted on behalf of the Manhattan Engineer District or the Atomic Energy Commission (predecessors to DOE). A radiological survey indicated that the radiation levels are equal to natural background in all areas not currently in use for licensed operations with radionuclides, Therefore, no remedial action is required,

278

Effects of atomic radiation  

SciTech Connect

This book focuses on the lifelong effects of atomic radiation exposure in language understandable by the concerned layperson or the specialist in another field. The base of knowledge used is the work of the Atomic Bomb Casualty Commission and its successor since 1975 the Radiation Effects Research Foundation. Within the range of Chronic effects on human health the book provides a thorough review, although effects of nonionizing radiation, effects on structures, effects on other living species, and acute effects are not discussed.

Schull, W.J.

1995-12-31T23:59:59.000Z

279

Radiation coloration resistant glass  

SciTech Connect

A radiation coloration resistant glass is disclosed which is used in a radiation environment sufficient to cause coloration in most forms of glass. The coloration resistant glass includes higher proportions by weight of water and has been found to be extremely resistant to color change when exposed to such radiation levels. The coloration resistant glass is free of cerium oxide and has more than about 0.5% by weight water content. Even when exposed to gamma radiation of more than 10.sup.7 rad, the coloration resistant glass does not lose transparency.

Tomozawa, Minoru (Troy, NY); Watson, E. Bruce (Troy, NY); Acocella, John (Troy, NY)

1986-01-01T23:59:59.000Z

280

Radiation Shielding Applications  

NLE Websites -- All DOE Office Websites (Extended Search)

Shielding Radiation Shielding Applications Heavy concrete is standard concrete in which conventional aggregate (typically gravel) is replaced with aggregate composed of a dense...

Note: This page contains sample records for the topic "radiation oncology university" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Radiation Hazards Program (Minnesota)  

Energy.gov (U.S. Department of Energy (DOE))

These regulations, promulgated by the Department of Health, set allowable radiation standards and mitigation practices, as well as procedures for the transportation of hazardous material.

282

Atomic Radiation (Illinois)  

Energy.gov (U.S. Department of Energy (DOE))

This article states permissible levels of radiation in unrestricted areas, environmental standards for uranium fuel cycle and information about notification of incidents.

283

Quick Reference Information - Radiation  

NLE Websites -- All DOE Office Websites (Extended Search)

Gamma and x-rays are photons. Protons: Positively charged elementary particles found in atomic nuclei. Radiation: The propagation of energy through space, or some other medium,...

284

Synchrotron Radiation Effects  

NLE Websites -- All DOE Office Websites (Extended Search)

Synchrotron Radiation Effects in the IR Solenoid Flux Excluder Peter Tenenbaum LCC-Note-0007 Draft 23-September-1998 Abstract We examine the emittance dilution due to synchrotron...

285

Human Radiation Experiments: Multimedia  

NLE Websites -- All DOE Office Websites (Extended Search)

the oral histories of researchers and others possessing firsthand knowledge of human radiation experimentation during World War II and the Cold War. Film Clips: Document...

286

Living with radiation  

SciTech Connect

The authors present an account of the hopes and fears associated with ionizing radiation, extending from nuclear energy and medical radiation to nuclear weapons. They argue that a justified fear of nuclear weapons has led to a widespread, unjustified, and unreasoning fear of the beneficial applications of radiation. Although these two aspects of atomic energy are tied together-they both involve the nucleus of the atom and its radioactive rays-a deep misunderstanding of this relationship by the general public has evolved since the time of the atomic bombing of Hiroshima and Nagasaki. The authors' aim is to place the beneficial applications of nuclear radiation in perspective.

Wagner, H.N. Jr. (Johns Hopkins Medical Institutions, Baltimore, MD (USA). Div. of Nuclear Medicine); Ketchum, L.E. (Proclinica, Inc., New York, NY (US))

1989-01-01T23:59:59.000Z

287

Carbonaceous Aerosols and Radiative...  

NLE Websites -- All DOE Office Websites (Extended Search)

Aerosols and Radiative Effects Study Science Objective This field campaign is designed to increase scientific knowledge about the evolution of black carbon, primary organic...

288

University | OpenEI  

Open Energy Info (EERE)

University University Dataset Summary Description Provides annual energy usage for years 1989 through 2010 for UT at Austin; specifically, electricity usage (kWh), natural gas usage (Mcf), associated costs. Also provides water consumption for 2005 through 2010. Source University of Texas (UT) at Austin, Utilities & Energy Management Date Released Unknown Date Updated Unknown Keywords Electricity Consumption Natural Gas Texas Unit Cost Electricity Unit Cost Natural Gas University Water Data application/vnd.ms-excel icon Energy and Water Use Data for UT-Austin (xls, 32.8 KiB) Quality Metrics Level of Review Some Review Comment Assume data was reviewed by someone at UT-Austin prior to adding to website. Temporal and Spatial Coverage Frequency Annually Time Period 1989 - 2010

289

Delaware State University | .EDUconnections  

Office of Scientific and Technical Information (OSTI)

Delaware State University Delaware State University Research Office of the Associate Provost for Research General Research Capability Center for Integrated Biological & Environmental Research Experimental Program to Stimulate Competitive Research Delaware IDeA Network of Biomedical Research Excellence Faculty Research DSU Leads the Way in Better Buildings DSU is one of the first university partners in the US to join the Department of Energy's Better Buildings inititative to reduce its carbon footprint by 25% by 2015. Secretary of Energy Chu participated in the DSU kick-off program to commemorate the school's efforts in July 2012. Read more about this showcase project. Search this site: Search Prestigious research projects underway by Delaware State University (DSU) serve to enhance DSU's land-grant mission and its contributions to the

290

Quantum mechanical Universal constructor  

E-Print Network (OSTI)

Arbitrary quantum states cannot be copied. In fact, to make a copy we must provide complete information about the system. However, can a quantum system self-replicate? This is not answered by the no-cloning theorem. In the classical context, Von Neumann showed that a `universal constructor' can exist which can self-replicate an arbitrary system, provided that it had access to instructions for making copy of the system. We question the existence of a universal constructor that may allow for the self-replication of an arbitrary quantum system. We prove that there is no deterministic universal quantum constructor which can operate with finite resources. Further, we delineate conditions under which such a universal constructor can be designed to operate dterministically and probabilistically.

Pati, A K; Pati, Arun K.; Braunstein, Samuel L.

2003-01-01T23:59:59.000Z

291

Quantum mechanical Universal constructor  

E-Print Network (OSTI)

Arbitrary quantum states cannot be copied. In fact, to make a copy we must provide complete information about the system. However, can a quantum system self-replicate? This is not answered by the no-cloning theorem. In the classical context, Von Neumann showed that a `universal constructor' can exist which can self-replicate an arbitrary system, provided that it had access to instructions for making copy of the system. We question the existence of a universal constructor that may allow for the self-replication of an arbitrary quantum system. We prove that there is no deterministic universal quantum constructor which can operate with finite resources. Further, we delineate conditions under which such a universal constructor can be designed to operate dterministically and probabilistically.

Arun K. Pati; Samuel L. Braunstein

2003-03-19T23:59:59.000Z

292

Texas Tech University  

E-Print Network (OSTI)

Texas Tech University :: TechAnnounce http Academic Departmental Citing scheduling conflicts with the Texas Oklahoma-Texas Tech football game and international environmental reporters, experts and industry and government leaders to the Hub City. Texas Tech

Rock, Chris

293

NCAR and the Universities  

Science Conference Proceedings (OSTI)

The National Center for Atmospheric Research (NCAR) has a responsibility for enhancing and assisting the national university-based atmospheric research effort. This responsibility is met partly by programs of research at NCAR that involve ...

Wilmot N. Hess

1985-05-01T23:59:59.000Z

294

Ideal Gas Stephani Universes  

E-Print Network (OSTI)

The Stephani Universes that can be interpreted as an ideal gas evolving in local thermal equilibrium are determined, and the method to obtain the associated thermodynamic schemes is given

Bartolom Coll; Joan Josep Ferrando

2003-12-04T23:59:59.000Z

295

EPCglobal : a universal standard  

E-Print Network (OSTI)

This thesis evaluates the likelihood of EPCglobal becoming the universal RFID standard by presenting a framework of ten factors used to analyze and determine if EPCglobal is moving in the right direction. The ten factors ...

Aguirre, Juan Ignacio

2007-01-01T23:59:59.000Z

296

Universal desktop fabrication  

Science Conference Proceedings (OSTI)

Advances in digital design and fabrication technologies are leading toward single fabrication systems capable of producing almost any complete functional object. We are proposing a new paradigm for manufacturing, which we call Universal Desktop Fabrication ...

T. Vilbrandt; E. Malone; H. Lipson; A. Pasko

2008-01-01T23:59:59.000Z

297

Heavy ion radiation damage simulations for CMOS image sensors Henok Mebrahtua  

E-Print Network (OSTI)

Heavy ion radiation damage simulations for CMOS image sensors Henok Mebrahtua , Wei Gaoa , Paul J, University of Toronto, Toronto, Ontario, Canada ABSTRACT Damage in CMOS image sensors caused by heavy ions and range of ions in matter) simulation results of heavy ion radiation damage to CMOS image sensors

Hornsey, Richard

298

Thermodynamics of Fractal Universe  

E-Print Network (OSTI)

We investigate the thermodynamical properties of the apparent horizon in a fractal universe. We find that one can always rewrite the Friedmann equation of the fractal universe in the form of the entropy balance relation $ \\delta Q=T_h d{S_h}$, where $ \\delta Q $ and $ T_{h} $ are the energy flux and Unruh temperature seen by an accelerated observer just inside the apparent horizon. We find that the entropy $S_h$ consists two terms, the first one which obeys the usual area law and the second part which is the entropy production term due to nonequilibrium thermodynamics of fractal universe. This shows that in a fractal universe, a treatment with nonequilibrium thermodynamics of spacetime may be needed. We also study the generalized second law of thermodynamics in the framework of fractal universe. When the temperature of the apparent horizon and the matter fields inside the horizon are equal, i.e. $T=T_h$, the generalized second law of thermodynamics can be fulfilled provided the deceleration and the equation of state parameters ranges either as $-1 \\leq q thermodynamics can be secured in a fractal universe by suitably choosing the fractal parameter $\\beta$.

Ahmad Sheykhi; Zeinab Teimoori; Bin Wang

2012-10-29T23:59:59.000Z

299

Auburn University | Open Energy Information  

Open Energy Info (EERE)

University Place Auburn, Alabama Zip 36849 Product Largest university in Alabama, enrolling approximately 23,000 students in 230 undergraduate, graduate, and professional programs....

300

Split University | Open Energy Information  

Open Energy Info (EERE)

Jump to: navigation, search Name Split University Place Zagreb, Croatia Sector Hydro, Solar Product Croatia-based electrical engineering faculty of Split University....

Note: This page contains sample records for the topic "radiation oncology university" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

The Universe Adventure - Early Models  

NLE Websites -- All DOE Office Websites (Extended Search)

Early Models of the Universe Ready for Blast-off Space exploration missions contribute greatly to our understanding of the Universe. With our new understanding of the fundamental...

302

J Apostolov Zlatomir D University  

NLE Websites -- All DOE Office Websites (Extended Search)

of Tennessee-Knoxville Group C Group I Saparov Bayrammurad University of Delaware Nguyen Lam T. Florida State University Kanitpanyacharoen K itpanyach Waruntorn Warunt...

303

Applied Radiation and Isotopes 65 (2007) 814817 Technical note  

E-Print Network (OSTI)

, such as lithium fluoride (LiF), is higher at low energies due to the higher effective atomic number Cancer Care Centre, Department of Medical Physics, Crown St, Wollongong, NSW 2500, Australia c Centre for Medical Radiation Physics, University of Wollongong, Northfields Ave, Gwyneville 2518, NSW, Australia

Yu, K.N.

304

6th International Conference on Biophysics & Synchrotron Radiation. Final report  

SciTech Connect

The 6th International Conference on Biophysics and Synchrotron Rdiation was held at the Advanced Photon Source, Argonne National Laboratory, from August 4-8, 1998, with pre-conference activities on August 3. Over 300 attendees and 65 presenters participated in the conference that was collaboratively hosted by the University of Chicago, Center for Advanced Radiation Sources and the Advanced Photon Source.

Moffat, Keith

1999-08-03T23:59:59.000Z

305

Fog-82: A Cooperative Field Study of Radiation Fog  

Science Conference Proceedings (OSTI)

The Cloud Physics Section of the Atmospheric Sciences Research Center-State University of New York at Albany conducted a cooperative field study (FOG-82) during the autumn of 1982 as part of an ongoing radiation-fog research program. A computer-...

Michael B. Meyer; G. Garland Lala; James E. Jiusto

1986-07-01T23:59:59.000Z

306

Effects of Aerosols on the Radiative Properties of Clouds  

Science Conference Proceedings (OSTI)

The influence of anthropogenic aerosols, in the form of ship exhaust effluent, on the microphysics and radiative properties of marine stratocumulus is studied using data gathered from the U.K. Met. Office C-130 and the University of Washington C-...

Jonathan P. Taylor; Martin D. Glew; James A. Coakley Jr.; William R. Tahnk; Steven Platnick; Peter V. Hobbs; Ronald J. Ferek

2000-08-01T23:59:59.000Z

307

California Stanford University of University Institute of University California of Southern  

E-Print Network (OSTI)

California Stanford University of University Institute of University California of Southern Technology California ____________________________________________________________ February 15, 2011 Dear Representative, As Congress considers funding options for the remainder of fiscal year (FY) 2011, California

Narayanan, Shrikanth S.

308

Solar radiation modelling  

Science Conference Proceedings (OSTI)

The Sun is the main energy source of the life on the Earth. Thus, solar radiation energy data and models are important for many areas of research and applications. Many parameters influence the amount of solar energy at a particular standing point of ... Keywords: Digital elevation model, Energy of quasiglobal radiation, Meteorology, Shadows, Virtual Sun motion

Klemen Zakek; Toma Podobnikar; Kritof Otir

2005-03-01T23:59:59.000Z

309

Electromagnetic radiation detector  

DOE Patents (OSTI)

An electromagnetic radiation detector including a collimating window, a cathode member having a photoelectric emissive material surface angularly disposed to said window whereby radiation is impinged thereon at acute angles, an anode, separated from the cathode member by an evacuated space, for collecting photoelectrons emitted from the emissive cathode surface, and a negatively biased, high transmissive grid disposed between the cathode member and anode.

Benson, Jay L. (Albuquerque, NM); Hansen, Gordon J. (Albuquerque, NM)

1976-01-01T23:59:59.000Z

310

Radiation detection system  

SciTech Connect

A radiation detection system including a radiation-to-light converter and fiber optic wave guides to transmit the light to a remote location for processing. The system utilizes fluors particularly developed for use with optical fibers emitting at wavelengths greater than about 500 nm and having decay times less than about 10 ns.

Franks, Larry A. (Santa Barbara, CA); Lutz, Stephen S. (Santa Barbara, CA); Lyons, Peter B. (Los Alamos, NM)

1981-01-01T23:59:59.000Z

311

Disposition Schedule: Human Radiation Experiments | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Schedule: Human Radiation Experiments Disposition Schedule: Human Radiation Experiments This database contains information on records collections related to human radiation...

312

Stanford Synchrotron Radiation Lightsource  

NLE Websites -- All DOE Office Websites (Extended Search)

Laboratory SLAC National Accelerator Laboratory, Menlo Park, CA Operated by Stanford University for the U.S. Department of Energy Office of Science Content Owner: Lisa Dunn |...

313

Stanford Synchrotron Radiation Lightsource  

NLE Websites -- All DOE Office Websites (Extended Search)

Institute of Science David Baker, University of Washington Ian Wilson, The Scripps Research Institute 2575 Sand Hill Road, MS: 99, Menlo Park, California, 94025, USA Tel:...

314

ARM - Publications: Science Team Meeting Documents: Clouds and radiation in  

NLE Websites -- All DOE Office Websites (Extended Search)

Clouds and radiation in the Arctic coastal system - effects of local Clouds and radiation in the Arctic coastal system - effects of local heterogeneity Key, Erica University of Miami, RSMAS Minnett, Peter University of Miami Improving our comprehension of the influence of clouds in the polar regions is important as a prerequisite to refining our understanding of the earth's climate system. Polar clouds modulate the radiative heat loss to space in the regions that serve as the heat sink of the climate system. The local feedbacks between cloud formation and changing surface albedo that result from the ice melting and refreezing cycle, and the small space scales over which significant gradients occur, render this a very complex system to study. Difficulties in making appropriate measurements in the harsh Arctic environment lead to sparse, if not absent information on the

315

Fundamentals of Radiation Dosimetry  

Science Conference Proceedings (OSTI)

The basic concepts of radiation dosimetry are reviewed on basis of ICRU reports and text books. The radiation field is described with, among others, the particle fluence. Cross sections for indirectly ionizing radiation are defined and indicated is how they are related to the mass energy transfer and mass energy absorption coefficients. Definitions of total and restricted mass stopping powers of directly ionizing radiation are given. The dosimetric quantities, kerma, absorbed dose and exposure together with the relations between them are discussed in depth. Finally it is indicated how the absorbed dose can be measured with a calorimeter by measuring the temperature increase and with an ionisation chamber measuring the charge produced by the ionizing radiation and making use of the Bragg-Gray relation.

Bos, Adrie J. J. [Delft University of Technology, Faculty of Applied Sciences, Mekelweg 15, 2629JB Delft (Netherlands)

2011-05-05T23:59:59.000Z

316

Underwater radiation detector  

DOE Patents (OSTI)

A detector apparatus for differentiating between gamma and neutron radiation is provided. The detector includes a pair of differentially shielded Geiger-Mueller tubes. The first tube is wrapped in silver foil and the second tube is wrapped in lead foil. Both the silver and lead foils allow the passage of gamma rays at a constant rate in a gamma ray only field. When neutrons are present, however, the silver activates and emits beta radiation that is also detected by the silver wrapped Geiger-Mueller tube while the radiation detected by the lead wrapped Geiger-Mueller tube remains constant. The amount of radiation impinging on the separate Geiger-Mueller tubes is then correlated in order to distinguish between the neutron and gamma radiations.

Kruse, Lyle W. (Albuquerque, NM); McKnight, Richard P. (Albuquerque, NM)

1986-01-01T23:59:59.000Z

317

Radiation effects on humans  

NLE Websites -- All DOE Office Websites (Extended Search)

Radiation effects on humans Radiation effects on humans Name: Joe Kemna Location: N/A Country: N/A Date: N/A Question: I am trying to find information on radiation. I need the effects on humans, the damage it causes to the environment, and any extra information you might have on the subject. Thank you for your time. Replies: Your library should be a good place to start, but first you need to narrow your question a bit. "Radiation" means radio waves, heat, light (including the ultraviolet light that causes suntan and sunburn), and what's called "ionizing radiation." By far the major source of the first three is the Sun, while the last I believe comes principally from cosmic rays and various naturally radioactive elements like uranium and radon. The most significant manmade sources of exposure would --- I think --- be household wiring and appliances (radio), engines and heating devices (heat), lamps (light), and X-ray machines, flying at high altitude in airplanes, and living in well-insulated homes built over radon sources (ionizing radiation). Heat, light and ionizing radiation play vital roles in the ecology of the Earth. Radio, light (in particular "tanning" ultraviolet), and ionizing radiation have all been widely assumed at different times to be particularly good or particularly bad for human health. Some recent issues of public concern have been the effect of radio waves from electric transmission lines, the effect on skin cancer incidence from tanning and sunburns, the depletion of the ultraviolet-light-produced ozone in the upper atmosphere by chlorofluorocarbons (CFCs), "global warming" from the increased absorption of heat radiation from the surface by atmospheric carbon dioxide and methane, and the effect of a long exposure to low levels of ionizing radiation as for example the people of Eastern Europe are experiencing from the Chernobyl nuclear power plant accident.

318

Low Dose Radiation Research Program: Slide Shows  

NLE Websites -- All DOE Office Websites (Extended Search)

Dose Health Effects of Radiation Health Effects of Radiation Adaptive Response to Low Dose Radiation PDF Background Radiation PDF Bystander Effects PDF Dirty Bombs PDF DNA Damage...

319

Tactile Sensation Imaging for Artificial Palpation Jong-Ha Lee1  

E-Print Network (OSTI)

, each of these techniques has limitations, including the exposure to radiation, excessive costs University, Philadelphia, PA 19040, USA {jong,cwon}@temple.edu 2 Department of Radiation Oncology, Thomas, transparent waveguide and the total internal reflection principle. The developed sensor is used to detect

Won, Chang-Hee

320

Artificial Tactile Sensation Imaging for Healthcare Application Jong-Ha Lee1  

E-Print Network (OSTI)

limitations, including the exposure to radiation, excessive costs, and complexity of machinery. Artificial, Philadelphia, PA 19122, USA 2 Department of Radiation Oncology, Thomas Jefferson University Hospital-layer optical waveguide as a sensing probe. In our device, total internal reflection principle is utilized

Won, Chang-Hee

Note: This page contains sample records for the topic "radiation oncology university" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Predictive Factors for Radiation Pneumonitis in Hodgkin Lymphoma Patients Receiving Combined-Modality Therapy  

SciTech Connect

Purpose: This study sought to quantify the risk of radiation pneumonitis (RP) in Hodgkin lymphoma (HL) patients receiving mediastinal radiation therapy (RT) and to identify predictive factors for RP. Methods and Materials: We identified 75 patients with newly diagnosed HL treated with mediastinal RT and 17 patients with relapsed/refractory HL treated with mediastinal RT before or after transplant. Lung dose-volumetric parameters including mean lung dose and percentage of lungs receiving 20 Gy were calculated. Factors associated with RP were explored by use of the Fisher exact test. Results: RP developed in 7 patients (10%) who received mediastinal RT as part of initial therapy (Radiation Therapy Oncology Group Grade 1 in 6 cases). A mean lung dose of 13.5 Gy or greater (p = 0.04) and percentage of lungs receiving 20 Gy of 33.5% or greater (p = 0.009) significantly predicted for RP. RP developed in 6 patients (35%) with relapsed/refractory HL treated with peri-transplant mediastinal RT (Grade 3 in 4 cases). Pre-transplant mediastinal RT, compared with post-transplant mediastinal RT, significantly predicted for Grade 3 RP (57% vs. 0%, p = 0.015). Conclusions: We identified threshold lung metrics predicting for RP in HL patients receiving mediastinal RT as part of initial therapy, with the majority of cases being of mild severity. The risk of RP is significantly higher with peri-transplant mediastinal RT, especially among those who receive pre-transplant RT.

Fox, Amy M. [Department of Radiation Oncology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, Boston, MA (United States); 21st Century Oncology, Fort Myers, FL (United States); Dosoretz, Arie P. [Department of Radiation Oncology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, Boston, MA (United States); Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, CT (United States); Mauch, Peter M. [Department of Radiation Oncology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, Boston, MA (United States); Chen, Yu-Hui [Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA (United States); Fisher, David C.; LaCasce, Ann S.; Freedman, Arnold S. [Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA (United States); Silver, Barbara [Department of Radiation Oncology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, Boston, MA (United States); Ng, Andrea K., E-mail: ang@lroc.harvard.edu [Department of Radiation Oncology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, Boston, MA (United States)

2012-05-01T23:59:59.000Z

322

Low Dose Radiation Program: Links - Organizations Funding Radiation...  

NLE Websites -- All DOE Office Websites (Extended Search)

Funding Radiation Research Australian Radiation Protection and Nuclear Safety Agency Canadian Nuclear Safety Commission Centers for Medical Countermeasures Against Radiological and...

323

National Solar Radiation Data Base

The National Solar Radiation...  

Open Energy Info (EERE)

National Solar Radiation Data Base (NSRDB) is the most comprehensive collection of solar data freely available. The 1991 - 2005 NSRDB contains hourly solar radiation (including...

324

DOE - Office of Legacy Management -- Princeton University - NJ 08  

NLE Websites -- All DOE Office Websites (Extended Search)

Princeton University - NJ 08 Princeton University - NJ 08 FUSRAP Considered Sites Site: PRINCETON UNIVERSITY (NJ.08) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: Princeton , New Jersey NJ.08-1 Evaluation Year: 1985 NJ.08-2 Site Operations: During 1940's, performed experiments on uranium isotope separation and experiments for the development of diffusion barrier material for the gaseous diffusion enrichment process. NJ.08-2 Site Disposition: Eliminated - Radiation levels below criteria NJ.08-1 NJ.08-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium NJ.08-2 NJ.08-3 Radiological Survey(s): Yes NJ.08-1 NJ.08-4 Site Status: Eliminated from consideration under FUSRAP Also see Documents Related to PRINCETON UNIVERSITY

325

The Properties of Undulator Radiation  

E-Print Network (OSTI)

of a Dedicated Synchrotron Radiation Facility," IEEE Trans.1983), "Characteristics of Synchrotron Radiation and of itsHandbook on Synchrotron Radiation, E. -E. Koch.1A. 65-172,

Howells, M.R.

2011-01-01T23:59:59.000Z

326

Coherent Radiation in an Undulator  

E-Print Network (OSTI)

solving the particle-radiation system in a self-consistentto clarify the coherent radiation mechanism. References 1.the Proceedings Coherent Radiation in an Undulator Y,H. Chin

Chin, Y.H.

2011-01-01T23:59:59.000Z

327

Connecting Blackbody Radiation, Relativity, and Discrete Charge in Classical Electrodynamics  

E-Print Network (OSTI)

It is suggested that an understanding of blackbody radiation within classical physics requires the presence of classical electromagnetic zero-point radiation, the restriction to relativistic (Coulomb) scattering systems, and the use of discrete charge. The contrasting scaling properties of nonrelativistic classical mechanics and classical electrodynamics are noted, and it is emphasized that the solutions of classical electrodynamics found in nature involve constants which connect together the scales of length, time, and energy. Indeed, there are analogies between the electrostatic forces for groups of particles of discrete charge and the van der Waals forces in equilibrium thermal radiation. The differing Lorentz- or Galilean-transformation properties of the zero-point radiation spectrum and the Rayleigh-Jeans spectrum are noted in connection with their scaling properties. Also, the thermal effects of acceleration within classical electromagnetism are related to the existence of thermal equilibrium within a gravitational field. The unique scaling and phase-space properties of a discrete charge in the Coulomb potential suggest the possibility of an equilibrium between the zero-point radiation spectrum and matter which is universal (independent of the particle mass), and an equilibrium between a universal thermal radiation spectrum and matter where the matter phase space depends only upon the ratio mc^2/kT. The observations and qualitative suggestions made here run counter to the ideas of currently accepted quantum physics.

Timothy H. Boyer

2006-04-28T23:59:59.000Z

328

Surface Radiation from GOES: A Physical Approach; Preprint  

DOE Green Energy (OSTI)

Models to compute Global Horizontal Irradiance (GHI) and Direct Normal Irradiance (DNI) have been in development over the last 3 decades. These models can be classified as empirical or physical, based on the approach. Empirical models relate ground based observations with satellite measurements and use these relations to compute surface radiation. Physical models consider the radiation received from the earth at the satellite and create retrievals to estimate surface radiation. While empirical methods have been traditionally used for computing surface radiation for the solar energy industry the advent of faster computing has made operational physical models viable. The Global Solar Insolation Project (GSIP) is an operational physical model from NOAA that computes GHI using the visible and infrared channel measurements from the GOES satellites. GSIP uses a two-stage scheme that first retrieves cloud properties and uses those properties in a radiative transfer model to calculate surface radiation. NREL, University of Wisconsin and NOAA have recently collaborated to adapt GSIP to create a 4 km GHI and DNI product every 30 minutes. This paper presents an outline of the methodology and a comprehensive validation using high quality ground based solar data from the National Oceanic and Atmospheric Administration (NOAA) Surface Radiation (SURFRAD) (http://www.srrb.noaa.gov/surfrad/sitepage.html) and Integrated Surface Insolation Study (ISIS) http://www.srrb.noaa.gov/isis/isissites.html), the Solar Radiation Research Laboratory (SRRL) at National Renewable Energy Laboratory (NREL), and Sun Spot One (SS1) stations.

Habte, A.; Sengupta, M.; Wilcox, S.

2012-09-01T23:59:59.000Z

329

Quantum Universe Hitoshi Murayama (Berkeley)  

E-Print Network (OSTI)

Quantum Universe Hitoshi Murayama (Berkeley) University of Tennessee, Jan 22, 2007 #12;COBE showed quantum origin of the universe #12;400Kyr 13.7Byr 1min 10 -10sec #12;To understand physics at the largest made of? · How did it come to be? · Why do we exist? Moving from philosophy to physics Quantum Universe

Murayama, Hitoshi

330

Oak Ridge Associated Universities  

Office of Legacy Management (LM)

Facility and Site Decommissioning U.S. Department of Energy ORAU 89lA-42 VERIFICATION OF REMEDIAL ACTION ON VENTILATION SYSTEMS JONES CHEMICAL LABORATORY UNIVERSITY OF CHICAGO CHICAGO, ILLINOIS M. R. LANDIS Radiological Site Assessment Program Manpower Education, Research, and Training Division FINAL REPORT JANUARY 1989 ORAU 89IA-42 3 VERIFICATION OF REMEDIAL ACTION ON VENTILATION SYSTEMS JONES CHEMICAL LABORATORY UNIVERSITY OF CHICAGO CHICAGO, ILLINOIS Prepared by M.R. Landis Radiological Site Assessment Program Manpower Education, Research, and Training Division Oak Ridge Associated Universities Oak Ridge, TN 37831-0117 Project Staff J.D. Berger R.D. Condra J.F. Lisco C.F. Weaver Prepared for U.S. Department of Energy as part of the Formerly Utilized Sites -

331

Universe Adventure Web Standards  

NLE Websites -- All DOE Office Websites (Extended Search)

Universe Universe Adventure Web Standards for the Smart Physics Student Author: Patrick Lii - plii@ugastro.berkeley.edu Date: August 3, 2007 ABSTRACT You may be wondering: why are the Universe Adventure web standards so impor- tant? And why do I have to read this stupid document about them? The old versions of our site were plagued with messy (and faulty) coding: the pages were littered with broken links, missing images, broken flash files, and all sorts of other problems which made the site highly inaccessible. When we tried to fix these errors, we found that the coding was so incredibly messy that a simple edit like changing some of the words in a paragraph or adding an image took hours rather than minutes. In fact, the coding was so horrific that we simply constructed an entirely new site rather than making the laborious attempt to fix the old one. In order to make sure that future students working

332

Posters The Effects of Radiative Transfer  

NLE Websites -- All DOE Office Websites (Extended Search)

Posters The Effects of Radiative Transfer on Low-Level Cyclogenesis M. J. Leach and S. Raman Department of Marine, Earth and Atmospheric Sciences North Carolina State University Raleigh, North Carolina Introduction Many investigators have documented the role that thermodynamic forcing due to radiative flux divergence plays in the enhancement or generation of circulation. Most of these studies involve large-scale systems (e.g., Slingo et al. 1988), small-scale systems such as thunderstorms (Chen and Cotton 1988), and squall lines (Chin, submitted). The generation of circulation on large scales results from the creation of divergence in the upper troposphere and the maintenance of low-level potentially unstable air, and the maintenance of baroclinicity throughout

333

Spectrum of gravitational radiation from primordial turbulence  

Science Conference Proceedings (OSTI)

Energy injection into the early universe can induce turbulent motions of the primordial plasma, which in turn act as a source for gravitational radiation. Earlier work computed the amplitude and characteristic frequency of the relic gravitational wave background, as a function of the total energy injected and the stirring scale of the turbulence. This paper computes the frequency spectrum of relic gravitational radiation from a turbulent source of the stationary Kolmogoroff form which acts for a given duration, making no other approximations. We also show that the limit of long source wavelengths, commonly employed in aeroacoustic problems, is an excellent approximation. The gravitational waves from cosmological turbulence around the electroweak energy scale will be detectable by future space-based laser interferometers for a substantial range of turbulence parameters.

Gogoberidze, Grigol [Centre for Plasma Astrophysics, K.U. Leuven, Celestijnenlaan 200B, 3001 Leuven (Belgium); National Abastumani Astrophysical Observatory, 2A Kazbegi Ave, GE-0160 Tbilisi (Georgia); Kahniashvili, Tina [Center for Cosmology and Particle Physics, New York University, 4 Washington Plaza, New York, New York 10003 (United States); National Abastumani Astrophysical Observatory, 2A Kazbegi Ave, GE-0160 Tbilisi (Georgia); Kosowsky, Arthur [Department of Physics and Astronomy, University of Pittsburgh, 3941 O'Hara Street, Pittsburgh, Pennsylvania 15260 (United States)

2007-10-15T23:59:59.000Z

334

Posters Sensitivity of Cirrus Cloud Radiative  

NLE Websites -- All DOE Office Websites (Extended Search)

7 7 Posters Sensitivity of Cirrus Cloud Radiative Properties to Ice Crystal Size and Shape in General Circulation Model Simulations D. L. Mitchell Desert Research Institute Reno, Nevada J. E. Kristjánsson Department of Geophysics University of Oslo, Norway M. J. Newman Los Alamos National Laboratory Los Alamos, New Mexico Introduction Recent research (e.g., Mitchell and Arnott 1994) has shown that the radiative properties of cirrus clouds (i.e., optical depth, albedo, emissivity) depend on the shapes and sizes of ice crystals. For instance, the cloud albedo may vary by a factor of two, depending on whether hexagonal columns or bullet rosette ice crystals are assumed for a given ice water path (IWP). This variance occurs primarily because, at sizes characteristic of cirrus

335

Radiation-Induced Bystander Effects and Relevance to Human Radiation  

NLE Websites -- All DOE Office Websites (Extended Search)

Radiation-Induced Bystander Effects and Relevance to Human Radiation Radiation-Induced Bystander Effects and Relevance to Human Radiation Exposures Review of phenomenon appears in Radiation Research Pamela Sykes and Benjamin Blyth One concern of radiobiologists is the effect radiation exposure might have on nearby unirradiated cells. For example, when only a small fraction of cells are directly hit by radiation energy, are the surrounding unirradiated cells also at an increased risk of cancer? The term "radiation-induced bystander effect" is used to describe radiation-induced biological changes that occur in unirradiated cells within an irradiated cell population. Radiation-induced bystander effects have become established in the vernacular and are considered as an authentic radiation response. However, there is still no consensus on a precise definition of the term, which

336

Florida Radiation Protection Act (Florida)  

Energy.gov (U.S. Department of Energy (DOE))

The Department of Public Health is responsible for administering a statewide radiation protection program. The program is designed to permit development and utilization of sources of radiation for...

337

NVLAP Radiation Detection Instruments LAP  

Science Conference Proceedings (OSTI)

Radiation Detection Instruments LAP. Leticia Pibida uses a hand-held radiation detection device to check cargo. Photo: Copyright Robert Rathe. ...

2013-07-23T23:59:59.000Z

338

Human Radiation Experiments: What's New  

NLE Websites -- All DOE Office Websites (Extended Search)

of Defense Report Finding Aids Department of Defense Report on Search for Human Radiation Experiments Records 1944-1994 Exit Human Radiation Experiments Site This...

339

Radiation Effects in Nanoporous Gold  

Science Conference Proceedings (OSTI)

Foams with filament and porous sizes in the range of nanometers could be unusually resistant to radiation because radiation induced point defects cannot...

340

University Location Project Description  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Location Project Description Location Project Description Boise State University Boise, Idaho Boise State University has undertaken a study of the structural setting and geothermal potential at Neal Hot Springs that will integrate geology, geochemistry, and geophysics to analyze the site on the western Snake River plain. Boise State will determine if Neal Hot Springs sustains the necessary rock dilation and conduit pathways for hydrothermal fluid flow and successful geothermal development. The result will be new data acquisition, including a deep geophysical survey and fault surface data. Colorado School of Mines Golden, Colorado Colorado School of Mines will conduct an investigation near Homedale, Idaho, an area that straddles volcanic rock and unconsolidated sediments.

Note: This page contains sample records for the topic "radiation oncology university" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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341

Composition for radiation shielding  

DOE Patents (OSTI)

A composition for use as a radiation shield. The shield has a depleted urum core for absorbing gamma rays and a bismuth coating for preventing chemical corrosion and absorbing gamma rays. Alternatively, a sheet of gadolinium may be positioned between the uranium core and the bismuth coating for absorbing neutrons. The composition is preferably in the form of a container for storing materials that emit radiation such as gamma rays and neutrons. The container is preferably formed by casting bismuth around a pre-formed uranium container having a gadolinium sheeting, and allowing the bismuth to cool. The resulting container is a structurally sound, corrosion-resistant, radiation-absorbing container.

Kronberg, James W. (Aiken, SC)

1994-01-01T23:59:59.000Z

342

The Intense Radiation Gas  

E-Print Network (OSTI)

We present a new dispersion relation for photons that are nonlinearly interacting with a radiation gas of arbitrary intensity due to photon-photon scattering. It is found that the photon phase velocity decreases with increasing radiation intensity, it and attains a minimum value in the limit of super-intense fields. By using Hamilton's ray equations, a self-consistent kinetic theory for interacting photons is formulated. The interaction between an electromagnetic pulse and the radiation gas is shown to produce pulse self-compression and nonlinear saturation. Implications of our new results are discussed.

M. Marklund; P. K. Shukla; B. Eliasson

2004-10-14T23:59:59.000Z

343

Miniaturized radiation chirper  

SciTech Connect

The disclosure relates to a miniaturized radiation chirper for use with a small battery supplying on the order of 5 volts. A poor quality CdTe crystal which is not necessarily suitable for high resolution gamma ray spectroscopy is incorporated with appropriate electronics so that the chirper emits an audible noise at a rate that is proportional to radiation exposure level. The chirper is intended to serve as a personnel radiation warning device that utilizes new and novel electronics with a novel detector, a CdTe crystal. The resultant device is much smaller and has much longer battery life than existing chirpers.

Umbarger, C. John (Los Alamos, NM); Wolf, Michael A. (Los Alamos, NM)

1980-01-01T23:59:59.000Z

344

METHOD FOR MEASURING RADIATION  

DOE Patents (OSTI)

A method for measuring an unknown integrated quantity of radiation with a condenser ionization chamber is described. The chamber is initially charged to a predetermined voltage by a voltage source. The chamber is then removed from the source and exposed to an unknown quantity of radiation for a period of time. The quantity of radiation to which the chamber was exposed is then measured by detecting the magnitude of the pulse of current necessary to recharge the chamber of its initial value through a suitable impedance. The current pulse is amplified and measured directly by a suitable pulse height analyzing system. (AEC)

Roesch, W.C.; McCall, R.C.

1961-11-21T23:59:59.000Z

345

Decoherence in the cosmic background radiation  

E-Print Network (OSTI)

In this paper we analyze the possibility of detecting nontrivial quantum phenomena in observations of the temperature anisotropy of the cosmic background radiation (CBR), for example, if the Universe could be found in a coherent superposition of two states corresponding to different CBR temperatures. Such observations are sensitive to scalar primordial fluctuations but insensitive to tensor fluctuations, which are therefore converted into an environment for the former. Even for a free inflaton field minimally coupled to gravity, scalar-tensor interactions induce enough decoherence among histories of the scalar fluctuations as to render them classical under any realistic probe of their amplitudes.

Mariano Franco; Esteban Calzetta

2011-03-01T23:59:59.000Z

346

Molecular Profiling to Optimize Treatment in Non-Small Cell Lung Cancer: A Review of Potential Molecular Targets for Radiation Therapy by the Translational Research Program of the Radiation Therapy Oncology Group  

SciTech Connect

Therapeutic decisions in non-small cell lung cancer (NSCLC) have been mainly based on disease stage, performance status, and co-morbidities, and rarely on histological or molecular classification. Rather than applying broad treatments to unselected patients that may result in survival increase of only weeks to months, research efforts should be, and are being, focused on identifying predictive markers for molecularly targeted therapy and determining genomic signatures that predict survival and response to specific therapies. The availability of such targeted biologics requires their use to be matched to tumors of corresponding molecular vulnerability for maximum efficacy. Molecular markers such as epidermal growth factor receptor (EGFR), K-ras, vascular endothelial growth factor (VEGF), mammalian target of rapamycin (mTOR), and anaplastic lymphoma kinase (ALK) represent potential parameters guide treatment decisions. Ultimately, identifying patients who will respond to specific therapies will allow optimal efficacy with minimal toxicity, which will result in more judicious and effective application of expensive targeted therapy as the new paradigm of personalized medicine develops.

Ausborn, Natalie L. [Department of Radiation Oncology, Vanderbilt University School of Medicine, Nashville, Tennessee (United States); Le, Quynh Thu [Department of Radiation Oncology, Stanford University, Palo Alto, California (United States); Bradley, Jeffrey D. [Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri (United States); Choy, Hak [Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas (United States); Dicker, Adam P. [Department of Radiation Oncology, Jefferson Medical College of Thomas Jefferson University, Philadelphia, Pennsylvania (United States); Saha, Debabrata [Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas (United States); Simko, Jeff [Department of Urology, University of California, San Francisco, California (United States); Story, Michael D. [Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas (United States); Torossian, Artour [Department of Radiation Oncology, Vanderbilt University School of Medicine, Nashville, Tennessee (United States); Lu, Bo, E-mail: bo.lu@jeffersonhospital.org [Department of Radiation Oncology, Jefferson Medical College of Thomas Jefferson University, Philadelphia, Pennsylvania (United States)

2012-07-15T23:59:59.000Z

347

California Stanford University of University of Institute of University California Southern  

E-Print Network (OSTI)

California Stanford University of University of Institute of University California Southern Technology California March 13, 2012 The Honorable Dianne Feinstein 331 Hart Senate Office Building Washington, DC 20510-0504 Dear Senator Feinstein: On behalf of California's research universities, we write

Southern California, University of

348

Multi-Dimensional Effects in Longwave Radiative Forcing of PBL Clouds  

NLE Websites -- All DOE Office Websites (Extended Search)

Multi-Dimensional Effects in Longwave Radiative Forcing of PBL Clouds D. B. Mechem and Y. L. Kogan Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma M. Ovtchinnikov Pacific Northwest National Laboratory Richland, Washington K. F. Evans University of Colorado Boulder, Colorado A. B. Davis Los Alamos National Laboratory Los Alamos, New Mexico R. F. Cahalan National Aeronautic and Space Administration Goddard Space Flight Center Greenbelt, Maryland E. E. Takara and R. G. Ellingson Florida State University Tallahassee, Florida 1. Introduction Numerical cloud models nearly universally employ one-dimensional (1D) treatments of radiative transfer (RT). Radiative transfer is typically implemented as a 2- or 4-stream approximation to the

349

ARM - Measurement - Backscattered radiation  

NLE Websites -- All DOE Office Websites (Extended Search)

govMeasurementsBackscattered radiation govMeasurementsBackscattered radiation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Backscattered radiation The scattering of radiant energy into the hemisphere of space bounded by a plane normal to the direction of the incident radiation and lying on the same side as the incident ray. Categories Aerosols, Cloud Properties Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments AOS : Aerosol Observing System IAP : In-situ Aerosol Profiles (Cessna Aerosol Flights)

350

Low Dose Radiation  

NLE Websites -- All DOE Office Websites (Extended Search)

Ancient Salt Beds Ancient Salt Beds Repository Science Renewable Energy The WIPP Underground may be ideal to study effects of Very Low Dose Rates on Biological Systems Low Background Radiation Experiment We're all bathing in it. It's in the food we eat, the water we drink, the soil we tread and even the air we breathe. It's background radiation, it's everywhere and we can't get away from it. But what would happen if you somehow "pulled the plug" on natural background radiation? Would organisms suffer or thrive if they grew up without their constant exposure to background radiation? That's what a consortium of scientists conducting an experiment at the Waste Isolation Pilot Plant aim to find out. Despite being an underground repository for transuranic radioactive waste,

351

Ionizing radiation detector  

DOE Patents (OSTI)

An ionizing radiation detector is provided which is based on the principal of analog electronic integration of radiation sensor currents in the sub-pico to nano ampere range between fixed voltage switching thresholds with automatic voltage reversal each time the appropriate threshold is reached. The thresholds are provided by a first NAND gate Schmitt trigger which is coupled with a second NAND gate Schmitt trigger operating in an alternate switching state from the first gate to turn either a visible or audible indicating device on and off in response to the gate switching rate which is indicative of the level of radiation being sensed. The detector can be configured as a small, personal radiation dosimeter which is simple to operate and responsive over a dynamic range of at least 0.01 to 1000 R/hr.

Thacker, L.H.

1989-06-08T23:59:59.000Z

352

Amorphous silicon radiation detectors  

DOE Patents (OSTI)

Hydrogenated amorphous silicon radiation detector devices having enhanced signal are disclosed. Specifically provided are transversely oriented electrode layers and layered detector configurations of amorphous silicon, the structure of which allow high electric fields upon application of a bias thereby beneficially resulting in a reduction in noise from contact injection and an increase in signal including avalanche multiplication and gain of the signal produced by incoming high energy radiation. These enhanced radiation sensitive devices can be used as measuring and detection means for visible light, low energy photons and high energy ionizing particles such as electrons, x-rays, alpha particles, beta particles and gamma radiation. Particular utility of the device is disclosed for precision powder crystallography and biological identification.

Street, Robert A. (Palo Alto, CA); Perez-Mendez, Victor (Berkeley, CA); Kaplan, Selig N. (El Cerrito, CA)

1992-01-01T23:59:59.000Z

353

Amorphous silicon radiation detectors  

DOE Patents (OSTI)

Hydrogenated amorphous silicon radiation detector devices having enhanced signal are disclosed. Specifically provided are transversely oriented electrode layers and layered detector configurations of amorphous silicon, the structure of which allow high electric fields upon application of a bias thereby beneficially resulting in a reduction in noise from contact injection and an increase in signal including avalanche multiplication and gain of the signal produced by incoming high energy radiation. These enhanced radiation sensitive devices can be used as measuring and detection means for visible light, low energy photons and high energy ionizing particles such as electrons, x-rays, alpha particles, beta particles and gamma radiation. Particular utility of the device is disclosed for precision powder crystallography and biological identification. 13 figs.

Street, R.A.; Perez-Mendez, V.; Kaplan, S.N.

1992-11-17T23:59:59.000Z

354

Ionizing radiation detector  

DOE Patents (OSTI)

An ionizing radiation detector is provided which is based on the principle of analog electronic integration of radiation sensor currents in the sub-pico to nano ampere range between fixed voltage switching thresholds with automatic voltage reversal each time the appropriate threshold is reached. The thresholds are provided by a first NAND gate Schmitt trigger which is coupled with a second NAND gate Schmitt trigger operating in an alternate switching state from the first gate to turn either a visible or audible indicating device on and off in response to the gate switching rate which is indicative of the level of radiation being sensed. The detector can be configured as a small, personal radiation dosimeter which is simple to operate and responsive over a dynamic range of at least 0.01 to 1000 R/hr.

Thacker, Louis H. (Knoxville, TN)

1990-01-01T23:59:59.000Z

355

Portal radiation monitor  

DOE Patents (OSTI)

A portal radiation monitor combines 0.1% FAR with high sensitivity to special nuclear material. The monitor utilizes pulse shape discrimination, dynamic compression of the photomultiplier output and scintillators sized to maintain efficiency over the entire portal area.

Kruse, Lyle W. (Albuquerque, NM)

1985-01-01T23:59:59.000Z

356

Radiation Stress Estimators  

Science Conference Proceedings (OSTI)

The radiation stresses Sij associated with the propagation of wind-generated waves are principal driving forces for several important surf-zone processes. The accurate estimation of the onshore flux of longshore-directed mean momentum Syx, using ...

S. S. Pawka; D. L. Inman; R. T. Guza

1983-09-01T23:59:59.000Z

357

Adaptive multigroup radiation diffusion  

E-Print Network (OSTI)

This thesis describes the development and implementation of an algorithm for dramatically increasing the accuracy and reliability of multigroup radiation diffusion simulations at low group counts. This is achieved by ...

Williams, Richard B., Sc. D. Massachusetts Institute of Technology

2005-01-01T23:59:59.000Z

358

Flexible Composite Radiation Detector  

NLE Websites -- All DOE Office Websites (Extended Search)

Flexible Composite Radiation Detector Flexible Composite Radiation Detector Flexible Composite Radiation Detector A flexible composite scintillator was prepared by mixing fast, bright, dense rare-earth doped powdered oxyorthosilicate (such as LSO:Ce, LSO:Sm, and GSO:Ce) scintillator with a polymer binder. Available for thumbnail of Feynman Center (505) 665-9090 Email Flexible Composite Radiation Detector A flexible composite scintillator was prepared by mixing fast, bright, dense rare-earth doped powdered oxyorthosilicate (such as LSO:Ce, LSO:Sm, and GSO:Ce) scintillator with a polymer binder. The binder is transparent to the scintillator emission. The composite is seamless and can be made large and in a wide variety of shapes. Importantly, the composite can be tailored to emit light in a spectral region that matches the optimum

359

Method of enhancing radiation response of radiation detection materials  

DOE Patents (OSTI)

The present invention is a method of increasing radiation response of a radiation detection material for a given radiation signal by first pressurizing the radiation detection material. Pressurization may be accomplished by any means including mechanical and/or hydraulic. In this application, the term "pressure" includes fluid pressure and/or mechanical stress.

Miller, Steven D. (Richland, WA)

1997-01-01T23:59:59.000Z

360

Cornell University Facilities Services  

E-Print Network (OSTI)

- substation design engineers, protective relay engineers, dispatchers in the control centers etc. AnotherRequirements Specification for and Evaluation of an Automated Substation Monitoring System Mladen for the Automated Analysis Substation System (AASS) implemented at Texas A&M University, aimed at monitoring

Manning, Sturt

Note: This page contains sample records for the topic "radiation oncology university" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Texas Tech University System  

E-Print Network (OSTI)

Texas Tech University System :: Huffaker Named as Texas Tech System General Counsel http://www.texastech.edu/stories/12-03-TTUS-Washington-DC-Trip.php[4/2/2012 8:13:27 AM] Chancellor Hance and leadership from the Texas visited with Texas Tech students and Congressional interns while in Washington, D.C. March 27, 2012 Texas

Rock, Chris

362

Graduate Handbook Clemson University  

E-Print Network (OSTI)

Graduate Handbook Clemson University #12;2 Table of Contents Introduction to fundamental knowledge in a student's chosen area of concentration (i.e., applied fluid mechanics, construction to fundamental knowledge in a student's chosen area of concentration (i.e., applied fluid mechanics, construction

Bolding, M. Chad

363

Northwestern University Transportation Center  

E-Print Network (OSTI)

Northwestern University Transportation Center 2011 Business Advisory Committee NUTC #12;#12;I have the pleasure of presenting our Business Advisory Committee members--a distinguished group of transportation industry lead- ers who have partnered with the Transportation Center in advancing the state of knowledge

Bustamante, Fabián E.

364

University of Waste Procedures  

E-Print Network (OSTI)

University of Maryland Hazardous And Regulated Waste Procedures Manual Revised July 2001 #12;Review II. HAZARDOUS WASTE MANAGEMENT III. BIOLOGICAL, PATHOLOGICAL AND MEDICAL WASTE (BPMW) MANAGEMENT IV. LOW-LEVEL RADIOACTIVE WASTE (LLRW) MANAGEMENT V. EMERGENCY PROCEDURES VI. WASTE MINIMIZATION VII

Rubloff, Gary W.

365

UNIVERSITY OF FINANCIAL MANAGEMENT  

E-Print Network (OSTI)

UNIVERSITY OF HAWAI`I FINANCIAL MANAGEMENT INFORMATION SYSTEMS (FMIS) ON-LINE QUICK REFERENCE GUIDE Reference Guide FIXED ASSETS SYSTEM (FFX) Scrn Num Screen Name 502 Asset Maintenance Use this screen-2093 Fixed Assets System (FFX), Inventory Maintenance - transfer, disposal of equipment, decal, equipment

366

Broadband and universal service  

Science Conference Proceedings (OSTI)

Section 254(b)(3) of the 1996 Telecommunications Act established the objective that residents of rural areas should have access to advanced telecommunications and information services comparable to services in urban areas. Pursuant to the passage of ... Keywords: Broadband policy, Empirical analysis, Rural, Telecommunications policy, Universal service

David Gabel

2007-07-01T23:59:59.000Z

367

Models for universal usability  

Science Conference Proceedings (OSTI)

This paper discusses how model-based approaches can support designers and developers to address a number of challenges raised by universal usability, such as the possibility of obtaining user interfaces able to adapt to any device and usability evaluation ... Keywords: abstract user interfaces, authoring environments, heterogeneous clients, multi-platform user interfaces, remote evaluation, task Models

Fabio Patern

2003-11-01T23:59:59.000Z

368

Universal nonlinear entanglement witnesses  

Science Conference Proceedings (OSTI)

We give a universal recipe for constructing nonlinear entanglement witnesses able to detect nonclassical correlations in arbitrary systems of distinguishable and/or identical particles for an arbitrary number of constituents. The constructed witnesses are expressed in terms of expectation values of observables. As such, they are, at least in principle, measurable in experiments.

Kotowski, Marcin; Kotowski, Michal [College of Inter-Faculty Individual Studies in Mathematics and Natural Sciences, Warsaw University, PL-Warszawa (Poland); Center for Theoretical Physics, Polish Academy of Sciences, Aleja Lotnikow 32/44, PL-02-668 Warszawa (Poland); Kus, Marek [Center for Theoretical Physics, Polish Academy of Sciences, Aleja Lotnikow 32/44, PL-02-668 Warszawa (Poland)

2010-06-15T23:59:59.000Z

369

Effects of Radiation on Adaptive Immunity: Contact Hypersensitivity Model  

NLE Websites -- All DOE Office Websites (Extended Search)

Radiation on Adaptive Immunity: Contact Hypersensitivity Model Radiation on Adaptive Immunity: Contact Hypersensitivity Model Gregory Nelson Loma Linda University Abstract It has long been appreciated that cells of the immune system are radiosensitive and use apoptosis as the primary mechanism of cell death following injury. The hypervariability of the immunoglobulin superfamily of genes expressed in lymphoid cells also led to the appreciation of the nonhomologous end joining mechanism of DNA repair. Clinically, whole body irradiation is used in treatment of some lymphomas and as an immunosuppressive agent for bone marrow transplants. Inflammation at sites of radiotherapy is a common side effect. Many studies with radiation have addressed the changes in cell populations following radiation exposure and have shown a reproducible pattern of relative sensitivities amongst

370

Low Dose Radiation Research Program: Howard L. Liber  

NLE Websites -- All DOE Office Websites (Extended Search)

Howard L. Liber Howard L. Liber Department of Environmental and Radiological Health Sciences Colorado State University Currently Funded Projects Molecular Mechanisms of Radiation-Induced Genomic Instability in Human Cells Technical Abstracts 2003 Workshop: Delayed genomic instability in human lymphoblasts exposed to 137Cs y-rays radiation Schwartz, J.L., Jordan, R., Lenarczyk, M. and Liber, H.L. 2002 Workshop: Molecular Mechanisms of Radiation-Induced Genomic Instability in Human Cells. Liber, H.L. and Schwartz, J.L. Publications Zhang, Y., Zhou, J., Held, K.D., Redmond, R.W., Prise, K.M., and Liber, H.L. (2008). Deficiencies of double-strand break repair factors and effects on mutagenesis in directly [gamma]-irradiated and medium-mediated bystander human lymphoblastoid cells. Radiation Research 169(2):197-206.

371

Low Dose Radiation Research Program: Janet E. Baulch  

NLE Websites -- All DOE Office Websites (Extended Search)

Janet E. Baulch Janet E. Baulch University of California, Davis Currently Funded Projects Impact of Genetic Factors on the Heritable Effects of Paternal Exposure to Low-Dose Radiation Technical Abstracts 2003 Workshop: DNA damage in acutely irradiated F2 mice with a history of paternal F0 germline irradiation Baulch, J.E. and Raabe, O G. 2002 Workshop Impact of Genetic Factors on the Heritable Effects of Paternal Exposure to Low-Dose Radiation, Baulch, J.E., Ph.D. and Raabe, O.G., Ph.D. Publications Kovalchuk, O. and Baulch, J.E. (2008). Epigenetic changes and nontargeted radiation effects - Is there a link? Environmental and Molecular Mutagenesis 49(1):16-25 Laiakis, E.C., Baulch, J.E., and Morgan, W.F. (2008). Interleukin 8 exhibits a pro-mitogenic and pro-survival role in radiation induced

372

Low Dose Radiation Research Program: Chaun-Yuan Li  

NLE Websites -- All DOE Office Websites (Extended Search)

Chaun-Yuan Li Chaun-Yuan Li Radiation Biology Research, Duke University Medical Center Funded Projects Molecular Characterization of the Role of SOD Genes in Mammalian Cellular Response to Low Dose Ionizing, abstract, description. Technical Abstracts 2006 Workshop: The Roles of Superoxide Dismutage (SOD) in Low Dose Radiation Induced Adaptive Response Yang, Z., Chuang, E., Batinic-Haberle, I., and Li, C.-Y. 2005 Workshop: Molecular Characterization of the Roles of SOD Genes in Mammalian Cellular Response to Low Dose Radiation Li, C.-Y., Guo, Z., Yang, Z., and Chuang, E. 2003 Workshop: Molecular Characterization of the Roles of SOD Genes in Mammalian Cellular Response to Low Dose Radiation Li, C.-Y. and Chuang, E. Publications Li, F., Sonveaux, P., Rabbani, Z.N., Liu, S., Yan, B., Huang, Q.,

373

Low Dose Radiation Research Program: Molecular Characterization of Survival  

NLE Websites -- All DOE Office Websites (Extended Search)

Survival Advantage, Bystander Effect, and Survival Advantage, Bystander Effect, and Genomic Instability after Low-LET Low Dose Radiation Exposure Mohan Natarajan University of Texas Health Science Center Why this Project? To understand the molecular link between the activation of NF-kB and cellular outcomes such as better cell survival after low-LET radiation and to determine whether low dose radiation-induced NF-kB signaling can mediate telomerase activation and thus confer enhanced cell survival of normal aortic endothelial cells. Project Goals To determine whether low-linear energy transfer (LET) radiation can cause a positive feedback signal initiated by the activation of the NF-kB. To examine one of the mechanisms involving TNF-a as a signaling mediator, which could mediate the bystander effect through the generation

374

Apoptosis as a Mechanism for Low Dose Radiation-and Amifostine-Mediated  

NLE Websites -- All DOE Office Websites (Extended Search)

Apoptosis as a Mechanism for Low Dose Radiation- and Amifostine-Mediated Apoptosis as a Mechanism for Low Dose Radiation- and Amifostine-Mediated Chromosomal Inversion Responses Pam Sykes Flinders University and Medical Centre Abstract Low dose radiation and the chemical radioprotector amifostine have both been shown to protect cells from the immediate and delayed effects of radiation exposure. They display a number of distinct similarities including their ability to protect cells against radiation-induced DNA damage, radiation-induced cell death and metastases formation. Amifostine, which protects cells from the toxic effects of ionizing radiation, has a broad range of activities including free radical scavenging, polyamine-like DNA binding, and induction of hypoxia and redox-regulated genes. Amifostine’s ability to protect cells is often

375

Posters A One-Dimensional Radiative Convective Model with Detailed Cloud Microphysics  

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5 5 Posters A One-Dimensional Radiative Convective Model with Detailed Cloud Microphysics J. Simmons, O. Lie-Svendsen, and K. Stamnes Geophysical Institute University of Alaska Fairbanks, Alaska The Arctic is a key element in determining the radiation budget of the earth. Within the polar regions, the net radiation (incoming solar radiation minus outgoing infrared radiation) is negative. To understand the role this energy deficit plays in the overall radiation budget, one must examine the prevalent atmospheric features of the Arctic. One such feature is a persistent layer of low-altitude, stratiform clouds found over the central Arctic predominantly from April to September (Tsay et al. 1984). These Arctic stratus clouds (ASC) modulate the earth's radiation budget

376

Hypofractionated Whole-Breast Radiation Therapy: Does Breast Size Matter?  

SciTech Connect

Purpose: To evaluate the effects of breast size on dose-volume histogram parameters and clinical toxicity in whole-breast hypofractionated radiation therapy using intensity modulated radiation therapy (IMRT). Materials and Methods: In this retrospective study, all patients undergoing breast-conserving therapy between 2005 and 2009 were screened, and qualifying consecutive patients were included in 1 of 2 cohorts: large-breasted patients (chest wall separation >25 cm or planning target volume [PTV] >1500 cm{sub 3}) (n=97) and small-breasted patients (chest wall separation <25 cm and PTV <1500 cm{sub 3}) (n=32). All patients were treated prone or supine with hypofractionated IMRT to the whole breast (42.4 Gy in 16 fractions) followed by a boost dose (9.6 Gy in 4 fractions). Dosimetric and clinical toxicity data were collected and analyzed using the R statistical package (version 2.12). Results: The mean PTV V95 (percentage of volume receiving >= 95% of prescribed dose) was 90.18% and the mean V105 percentage of volume receiving >= 105% of prescribed dose was 3.55% with no dose greater than 107%. PTV dose was independent of breast size, whereas heart dose and maximum point dose to skin correlated with increasing breast size. Lung dose was markedly decreased in prone compared with supine treatments. Radiation Therapy Oncology Group grade 0, 1, and 2 skin toxicities were noted acutely in 6%, 69%, and 25% of patients, respectively, and at later follow-up (>3 months) in 43%, 57%, and 0% of patients, respectively. Large breast size contributed to increased acute grade 2 toxicity (28% vs 12%, P=.008). Conclusions: Adequate PTV coverage with acceptable hot spots and excellent sparing of organs at risk was achieved by use of IMRT regardless of treatment position and breast size. Although increasing breast size leads to increased heart dose and maximum skin dose, heart dose remained within our institutional constraints and the incidence of overall skin toxicity was comparable to that reported in the literature. Taken together, these data suggest that hypofractionated radiation therapy using IMRT is a viable and appropriate therapeutic modality in large-breasted patients.

Hannan, Raquibul, E-mail: Raquibul.Hannan@gmail.com [Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas (United States)] [Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas (United States); Thompson, Reid F.; Chen Yu; Bernstein, Karen; Kabarriti, Rafi; Skinner, William [Department of Radiation Oncology, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, New York (United States)] [Department of Radiation Oncology, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, New York (United States); Chen, Chin C. [Department of Radiation Oncology, Columbia University Medical Center, New York, New York (United States)] [Department of Radiation Oncology, Columbia University Medical Center, New York, New York (United States); Landau, Evan; Miller, Ekeni; Spierer, Marnee; Hong, Linda; Kalnicki, Shalom [Department of Radiation Oncology, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, New York (United States)] [Department of Radiation Oncology, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, New York (United States)

2012-11-15T23:59:59.000Z

377

Low Dose Radiation Program: Links - Agencies with Radiation Regulatory  

NLE Websites -- All DOE Office Websites (Extended Search)

Agencies with Radiation Regulatory Concerns and Involvement Agencies with Radiation Regulatory Concerns and Involvement Biological Effects of Low Level Exposures (BELLE) Canadian Nuclear Safety Commission Center for Risk Excellence Health Protection Agency The Health Risks of Extraterrestrial Environments International Commission on Radiation Units and Measurements, Inc. International Commission on Radiological Protection (ICRP) International Radiation Protection Association (IRPA) NASA Space Radiation Program National Academy of Sciences (NAS) Nuclear and Radiation Studies Board National Aeronautics and Space Administration (NASA) NASA OBRR Task Book Publication National Council on Radiation Protection (NCRP) National Institute of Environmental Health Sciences (NIEHS) National Toxicology Program (NTP) Occupational Safety and Health Administration (OSHA)

378

Radiation and viral DNA  

NLE Websites -- All DOE Office Websites (Extended Search)

Radiation and viral DNA Radiation and viral DNA Name: Loretta L Lamb Age: N/A Location: N/A Country: N/A Date: N/A Question: Can viral DNA be changed through exposure to radiation? If so, what type of radiation will do this? Can these irradiated viruses cause changes in the genome of any human cells they may infect? Can these (or any) viruses actually cause cancer, or do they merely act as triggering devices for cancer? Replies: In theory, any nucleic acid (viral or otherwise) can be changed by exposure to many kinds of radiation. Depending on the type of virus, these may then change the human cells that they infect. Although there are many different things that are being implicated in causing cancers, it looks like a fairly common model involves the sequential "knockout" of several human genes. Viruses may be one cause of such gene changes, radiation and other environmental causes may also contribute. Some of these changes may be inherited through families, so it becomes more likely that the environmental factors may happen to "hit" the right places in cells to cause cancers in these families. If you ask something more specific, perhaps I can focus my response a bit more

379

Packet personal radiation monitor  

DOE Patents (OSTI)

A personal radiation monitor of the chirper type is provided for detecting ionizing radiation. A battery powered high voltage power supply is used to generate and apply a high voltage bias to a G-M tube radiation sensor. The high voltage is monitored by a low-loss sensing network which generates a feedback signal to control the high voltage power supply such that the high voltage bias is recharged to +500 VDC when the current pulses of the sensor, generated by the detection of ionizing radiation events, discharges the high voltage bias to +450 VDC. During the high voltage recharge period an audio transducer is activated to produce an audible "chirp". The rate of the "chirps" is controlled by the rate at which the high voltage bias is recharged, which is proportional to the radiation field intensity to which the sensor is exposed. The chirp rate sensitivity is set to be approximately 1.5 (chirps/min/MR/hr.). The G-M tube sensor is used in a current sensing mode so that the device does not paralyze in a high radiation field.

Phelps, James E. (Knoxville, TN)

1989-01-01T23:59:59.000Z

380

DOE Solar Decathlon: Gallery of Kentucky/Indiana: University...  

NLE Websites -- All DOE Office Websites (Extended Search)

KentuckyIndiana: University of Louisville, Ball State University and University of Kentucky Photos of University of Louisville, Ball State University and University of Kentucky's...

Note: This page contains sample records for the topic "radiation oncology university" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Impact of Shortwave Radiative Effects of Dust Aerosols on the Summer Season Heat Low over Saudi Arabia  

Science Conference Proceedings (OSTI)

A two-stream scattering scheme based on the delta-Eddington approximation is incorporated into the Florida State University Limited Area Model for computing the shortwave radiative fluxes due to dust aerosols over the Saudi Arabian region and to ...

Saad Mohalfi; H. S. Bedi; T. N. Krishnamurti; Steven D. Cocke

1998-12-01T23:59:59.000Z

382

Narrow- and Broad-Band Satellite Measurements of Shortwave Radiation: Conversion Simulations with a General Circulation Model  

Science Conference Proceedings (OSTI)

The Oregon State University/Lawrence Livermore National Laboratory general circulation model has been employed as a vehicle for suggesting and exploring various means of converting narrow-band measurements of reflected solar radiation from the ...

Robert D. Cess; Gerald L. Potter

1986-12-01T23:59:59.000Z

383

DOE - Office of Legacy Management -- University of California Chemistry  

Office of Legacy Management (LM)

California Chemistry California Chemistry Building and Radiation Lab - CA 05 FUSRAP Considered Sites Site: UNIVERSITY OF CALIFORNIA (CHEMISTRY BUILDING AND RADIATION LABORATORY) (CA.05) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: Berkeley , California CA.05-1 Evaluation Year: 1989 CA.05-2 Site Operations: Performed research in areas including nuclear fission and the TTA extraction process. CA.05-3 CA.05-4 Site Disposition: Eliminated - NRC licensed CA.05-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium CA.05-1 CA.05-3 Radiological Survey(s): None Indicated Site Status: Eliminated from consideration under FUSRAP Also see Documents Related to UNIVERSITY OF CALIFORNIA (CHEMISTRY BUILDING AND

384

Elizabeth City State University: Elizabeth City, North Carolina (Data)  

DOE Data Explorer (OSTI)

The Historically Black Colleges and Universities (HBCU) Solar Radiation Monitoring Network operated from July 1985 through December 1996. Funded by DOE, the six-station network provided 5-minute averaged measurements of direct normal, global, and diffuse horizontal solar irradiance. The data were processed at NREL to improve the assessment of the solar radiation resources in the southeastern United States. Historical HBCU data available online include quality assessed 5-min data, monthly reports, and plots. In January 1997 the HBCU sites became part of the CONFRRM solar monitoring network and data from the two remaining active stations, Bluefield State College and Elizabeth City State University, are collected by the NREL Measurement & Instrumentation Data Center (MIDC).

Stoffel, T.; Andreas, A.

385

NIST Ionizing Radiation Division - 1998  

Science Conference Proceedings (OSTI)

TECHNICAL ACTIVITIES 1998 - NISTIR 6268 IONIZING RADIATION DIVISION. The Neutron Interferometer. The neutron ...

386

NIST Ionizing Radiation Division - 2000  

Science Conference Proceedings (OSTI)

"Technical Activities 2000" - Table of Contents, Division home page. Ionizing Radiation Division. ...

387

External audit of clinical practice and medical decision making in a new Asian oncology center: Results and implications for both developing and developed nations  

SciTech Connect

Purpose: The external audit of oncologist clinical practice is increasingly important because of the incorporation of audits into national maintenance of certification (MOC) programs. However, there are few reports of external audits of oncology practice or decision making. Our institution (The Cancer Institute, Singapore) was asked to externally audit an oncology department in a developing Asian nation, providing a unique opportunity to explore the feasibility of such a process. Methods and Materials: We audited 100 randomly selected patients simulated for radiotherapy in 2003, using a previously reported audit instrument assessing clinical documentation/quality assurance and medical decision making. Results: Clinical documentation/quality assurance, decision making, and overall performance criteria were adequate 74.4%, 88.3%, and 80.2% of the time, respectively. Overall 52.0% of cases received suboptimal management. Multivariate analysis revealed palliative intent was associated with improved documentation/clinical quality assurance (p = 0.07), decision making (p 0.007), overall performance (p = 0.003), and optimal treatment rates (p 0.07); non-small-cell lung cancer or central nervous system primary sites were associated with better decision making (p = 0.001), overall performance (p = 0.03), and optimal treatment rates (p = 0.002). Conclusions: Despite the poor results, the external audit had several benefits. It identified learning needs for future targeting, and the auditor provided facilitating feedback to address systematic errors identified. Our experience was also helpful in refining our national revalidation audit instrument. The feasibility of the external audit supports the consideration of including audit in national MOC programs.

Shakespeare, Thomas P. [North Coast Cancer Institute, Coffs Harbour, Sydney, NSW (Australia) and Cancer Institute (Singapore)]. E-mail: ThomasShakespeare@gmail.com; Back, Michael F. [Cancer Institute (Singapore); Lu, Jiade J. [Cancer Institute (Singapore); Lee, Khai Mun [Cancer Institute (Singapore); Mukherjee, Rahul K. [Cancer Institute (Singapore)

2006-03-01T23:59:59.000Z

388

Preoperative Chemoradiotherapy (CRT) Followed by Laparoscopic Surgery for Rectal Cancer: Predictors of the Tumor Response and the Long-Term Oncologic Outcomes  

Science Conference Proceedings (OSTI)

Purpose: We have evaluated the predictors of a tumor response to chemoradiotherapy (CRT) and the long-term oncologic outcomes of preoperative CRT and laparoscopic surgery for patients who suffer from rectal cancer. Methods and Materials: The study involved 274 patients with locally advanced rectal cancer and who had been treated with preoperative CRT and curative laparoscopic total mesorectal excision between January 2003 and January 2009. We assessed the long-term oncologic outcomes, in terms of recurrence and survival, of the treated patients. Results: Forty-two (15.3%) of the 274 patients had complete pathologic responses (pCR). The pre-CRT carcinoembryonic antigen level was the only significant predictor of a pCR on the multivariate analysis (p = 0.01). The overall survival at 5 years was 73.1%, with a mean survival period of 59.7 months (95% CI, 57.1-62.3). The disease-free survival at 5 years was 67.3% with a mean survival period of 54.7 months (95% CI, 51.7-57.8). The pCR group had a higher rate of overall survival at 5 years than did the non-pCR group, and the difference was significant (86.0% vs. 71.2%; hazard ratio = 0.87; 95% CI, 0.78-0.96; p = 0.03). The cumulative incidences of local and distant recurrences at 5 years were 5.8% and 28.3%, respectively. A total of 84.5% (234 of 274) of the patients had their anal sphincters preserved. Grade 3 or 4 acute and long-term toxic effects occurred in 22.2% and 8.4% of the patients, respectively. Conclusion: Preoperative CRT and laparoscopic surgery seems safe and feasible with favorable long-term outcomes and a high rate of sphincter preservation for the patients with low-lying tumors of the rectum.

Lee, Jong Hoon [Department of Radiation Oncology, St. Vincent's Hospital, Catholic University of Korea, College of Medicine, Suwon (Korea, Republic of); Kim, Sung Hwan, E-mail: kimandre@catholic.ac.kr [Department of Radiation Oncology, St. Vincent's Hospital, Catholic University of Korea, College of Medicine, Suwon (Korea, Republic of); Kim, Jun-Gi [Laparoscopic Colorectal Surgery Center, Seoul St. Mary's Hospital, Catholic University of Korea, College of Medicine, Seoul (Korea, Republic of); Cho, Hyun Min [Laparoscopic Colorectal Surgery Center, St. Vincent's Hospital, Catholic University of Korea, College of Medicine, Suwon (Korea, Republic of); Shim, Byoung Yong [Department of Medical Oncology, St. Vincent's Hospital, Catholic University of Korea, College of Medicine, Suwon (Korea, Republic of)

2011-10-01T23:59:59.000Z

389

The Universe Adventure - The Homogenous and Isotropic Universe  

NLE Websites -- All DOE Office Websites (Extended Search)

Our View of the Universe Our View of the Universe All observations that have been made using the most powerful telescopes show that the universe looks the same in all directions. The average density of galaxies is the same throughout the universe and does not change with distance or direction. This is called the Cosmological Principle. Distribution of Galaxies On average and at large scales, the distribution of galaxies is the same throughout the universe. Since the expansion of space occurs evenly at every point in the universe, galaxies are separating from each other at about the same pace, giving the universe a nearly uniform density and structure. As a result, the universe appears smooth at large distance scales. In scientific terms, it is said to be homogeneous and isotropic.

390

College/University: University of Indonesia; Jakarta, Indonesia  

E-Print Network (OSTI)

Education College/University: University of Indonesia; Jakarta, Indonesia Highest degree: B, under revision First name: Meta Last name: Djojosubroto Date of birth: 21.11.1975 Country: Indonesia E

Manstein, Dietmar J.

391

Stanford Synchrotron Radiation Lightsource  

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Beam Line 10-2 in parallel with magnetic resonance imaging (MRI) at Wayne State University to map and quantify iron and calcium on the same slices of human brain, thus...

392

M. Uesaka, H. Iijima, Y. Muroya, T. Ueda, A. Sakumi, Nuclear Engineering Research Laboratory, University of Tokyo  

NLE Websites -- All DOE Office Websites (Extended Search)

width measurement and control width measurement and control M. Uesaka, H. Iijima, Y. Muroya, T. Ueda, A. Sakumi, Nuclear Engineering Research Laboratory, University of Tokyo H. Tomizawa, N. Kumagai SPring-8, Japan Synchrotron Radiation Institute June 26, 2004 International Symposium on Ultrafast Accelerators for Pulse Radiolysis Femtosecond Electron Bunch Diagnostics Incoherent Radiation Coherent Radiation Streak Camera or Single-shot Acquisition of Spectrum Bunch Form Factor Bunch Shape Fluctuation Method 2nd Order Correlation Bunch Form Factor

393

NREL Solar Radiation Resource Assessment Project: Status and outlook  

DOE Green Energy (OSTI)

This report summarizes the activities and accomplishments of NREL's Solar Radiation Resource Assessment Project during fiscal year 1991. Currently, the primary focus of the SRRAP is to produce a 1961--1990 National Solar Radiation Data Base, providing hourly values of global horizontal, diffuse, and direct normal solar radiation at approximately 250 sites around the United States. Because these solar radiation quantities have been measured intermittently at only about 50 of these sites, models were developed and applied to the majority of the stations to provide estimates of these parameters. Although approximately 93% of the data base consists of modeled data this represents a significant improvement over the SOLMET/ERSATZ 1952--1975 data base. The magnitude and importance of this activity are such that the majority of SRRAP human and financial in many other activities, which are reported here. These include the continued maintenance of a solar radiation monitoring network in the southeast United States at six Historically Black Colleges and Universities (HBCU's), the transfer of solar radiation resource assessment technology through a variety of activities, participation in international programs, and the maintenance and operation of NREL's Solar Radiation Research Laboratory. 17 refs.

Renne, D.; Riordan, C.; Maxwell, E.; Stoffel, T.; Marion, B.; Rymes, M.; Wilcox, S.; Myers, D.

1992-05-01T23:59:59.000Z

394

Radiation in Particle Simulations  

SciTech Connect

Hot dense radiative (HDR) plasmas common to Inertial Confinement Fusion (ICF) and stellar interiors have high temperature (a few hundred eV to tens of keV), high density (tens to hundreds of g/cc) and high pressure (hundreds of megabars to thousands of gigabars). Typically, such plasmas undergo collisional, radiative, atomic and possibly thermonuclear processes. In order to describe HDR plasmas, computational physicists in ICF and astrophysics use atomic-scale microphysical models implemented in various simulation codes. Experimental validation of the models used to describe HDR plasmas are difficult to perform. Direct Numerical Simulation (DNS) of the many-body interactions of plasmas is a promising approach to model validation but, previous work either relies on the collisionless approximation or ignores radiation. We present four methods that attempt a new numerical simulation technique to address a currently unsolved problem: the extension of molecular dynamics to collisional plasmas including emission and absorption of radiation. The first method applies the Lienard-Weichert solution of Maxwell's equations for a classical particle whose motion is assumed to be known. The second method expands the electromagnetic field in normal modes (planewaves in a box with periodic boundary-conditions) and solves the equation for wave amplitudes coupled to the particle motion. The third method is a hybrid molecular dynamics/Monte Carlo (MD/MC) method which calculates radiation emitted or absorbed by electron-ion pairs during close collisions. The fourth method is a generalization of the third method to include small clusters of particles emitting radiation during close encounters: one electron simultaneously hitting two ions, two electrons simultaneously hitting one ion, etc. This approach is inspired by the virial expansion method of equilibrium statistical mechanics. Using a combination of these methods we believe it is possible to do atomic-scale particle simulations of fusion ignition plasmas including the important effects of radiation emission and absorption.

More, R; Graziani, F; Glosli, J; Surh, M

2010-11-19T23:59:59.000Z

395

NEVADA UNIVERSITY TRANSPORTATION CENTER UNIVERSITY OF NEVADA, LAS VEGAS  

E-Print Network (OSTI)

of professionals and future leaders in the area of transportation systems. · Support of career growthNEVADA UNIVERSITY TRANSPORTATION CENTER UNIVERSITY OF NEVADA, LAS VEGAS 2011-2012 ANNUAL REPORT #12 University Transportation Center (NUTC) Vision: The NUTC will strive to become a nationally recognized center

Ahmad, Sajjad

396

Radiation delivery system and method  

DOE Patents (OSTI)

A radiation delivery system and method are described. The system includes a treatment configuration such as a stent, balloon catheter, wire, ribbon, or the like, a portion of which is covered with a gold layer. Chemisorbed to the gold layer is a radiation-emitting self-assembled monolayer or a radiation-emitting polymer. The radiation delivery system is compatible with medical catheter-based technologies to provide a therapeutic dose of radiation to a lesion following an angioplasty procedure.

Sorensen, Scott A. (Overland Park, KS); Robison, Thomas W. (Los Alamos, NM); Taylor, Craig M. V. (Jemez Springs, NM)

2002-01-01T23:59:59.000Z

397

The Universe Adventure - Redshift  

NLE Websites -- All DOE Office Websites (Extended Search)

Expansion of the Universe Expansion of the Universe Redshift Expansion of Space Redshifts Light The expansion of space redshifts light. As space expands, light waves get stretched and their wavelengths shift. The more that light is stretched, the longer its wavelengths become, and the color of each wave shifts toward the red end of the light spectrum. We say that this light is redshifted. The Doppler Effect in action. A moving fire truck's siren changes pitch as it moves past you. This is known as the Doppler Effect. To get a better idea of how this actually works, we'll look at a common phenomenon: the Doppler Effect. Imagine you hear a fire truck coming right toward you. As the truck approaches, the pitch of the siren gets higher and higher. As soon as the truck passes you however, the pitch drops lower as

398

Nuclear Energy University Programs  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

NEUP FY2011 Process Presentation to NEAC December 9, 2010 Marsha Lambregts, NEUP-IO Manager FUNDED R&D PROPOSALS BY STATE 2010 * Awards/Full Submissions - 42/128 * Awards to PIs for first time - 29 * Awards to junior faculty - 20 * Awards that are experimental - 30 * Awards in materials and waste - 30 * Awards to Nuclear Engineering Faculty - 18 * Number of universities receiving awards - 26 * Number of awards with lab partners - 20 * Number of universities receiving awards for first time - 8 2 2010 INFRASTRUCTURE * Major Reactor: 4 awards for a total of $3.75 M * Minor Reactor: 12 awards for $1.95 M * General Scientific Infrastructure: 33 award for $7.47 M * Since 2009, $ 19.438 M has been awarded in General Scientific Infrastructure (did not issue Major or Minor Reactor calls in 2009).

399

Regional University Alliance  

NLE Websites -- All DOE Office Websites (Extended Search)

Alliance Alliance Developed by the National Energy Technology Laboratory in collaboration with NETL-Regional University Alliance WVU National Research Center for Coal and Energy Fossil Consulting Services, Inc. The AVESTAR(tm) Center provides a state-of- the-art, highly realistic, dynamic simulator for a coal-fired power plant using Integrated Gasification Combined Cycle (IGCC) technology with CO 2 capture. The system is based on Invensys' DYNSIM ® software

400

WESTERN UNIVERSITY Disaster Plan  

E-Print Network (OSTI)

.7 Assumptions 1.7.1 Emergency 1.7.2 Disaster 1.8 Concept of Operations 1.8.1 Background 1.8.2 Emergency Response/Administrative Unit Responsibilities 1.8.8 Situation Reports 2. UTILIZING THE DISASTER PLAN 2.1 Emergency Process Members ­ Individual Responsibilities #12;WESTERN UNIVERSITY Disaster Plan January, 2013 2.7.1 VP

Sinnamon, Gordon J.

Note: This page contains sample records for the topic "radiation oncology university" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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401

Universal battery terminal connector  

SciTech Connect

This patent describes a universal battery terminal connector for connecting either a top post battery terminal or a side post battery terminal to a battery cable. The connector comprises an elongated electrically conductive body having: (a) first means for connection to a top post battery terminal; (b) second means for connection to a side post battery terminal, and (c) third means for receiving one end of a battery cable and providing an electrical connection therewith.

Norris, R.W.

1987-01-13T23:59:59.000Z

402

University Science Highlights  

NLE Websites -- All DOE Office Websites (Extended Search)

universities/highlights/ The Office of Science is universities/highlights/ The Office of Science is the single largest supporter of basic research in the physical sciences in the United States, providing more than 40 percent of total funding for this vital area of national importance. It oversees - and is the principal federal funding agency of - the Nation's research programs in high-energy physics, nuclear physics, and fusion energy sciences. en {B0DFBA1D-D6A0-4920-8E73-4779F8F5ACEA}http://science.energy.gov/np/highlights/2013/np-2013-12-a/ Modeling Cosmic Nucleosynthesis First measurements of isotopes produced by Argonne's new CARIBU facility provide insight into the creation of the elements in the universe. Thu, 09

403

Fermilab Today | University of Arizona  

NLE Websites -- All DOE Office Websites (Extended Search)

A&M University Dec. 12, 2012 NAME: Texas A&M University HOME TOWN: College Station, Texas MASCOT: Reveille COLORS: Maroon and white COLLABORATING AT FERMILAB SINCE: Early 1980s....

404

Nuclear radiation actuated valve  

DOE Patents (OSTI)

A nuclear radiation actuated valve for a nuclear reactor. The valve has a valve first part (such as a valve rod with piston) and a valve second part (such as a valve tube surrounding the valve rod, with the valve tube having side slots surrounding the piston). Both valve parts have known nuclear radiation swelling characteristics. The valve's first part is positioned to receive nuclear radiation from the nuclear reactor's fuel region. The valve's second part is positioned so that its nuclear radiation induced swelling is different from that of the valve's first part. The valve's second part also is positioned so that the valve's first and second parts create a valve orifice which changes in size due to the different nuclear radiation caused swelling of the valve's first part compared to the valve's second part. The valve may be used in a nuclear reactor's core coolant system.

Christiansen, David W. (Kennewick, WA); Schively, Dixon P. (Richland, WA)

1985-01-01T23:59:59.000Z

405

AREA RADIATION MONITOR  

DOE Patents (OSTI)

S>An improved area radiation dose monitor is designed which is adapted to compensate continuously for background radiation below a threshold dose rate and to give warning when the dose integral of the dose rate of an above-threshold radiation excursion exceeds a selected value. This is accomplished by providing means for continuously charging an ionization chamber. The chamber provides a first current proportional to the incident radiation dose rate. Means are provided for generating a second current including means for nulling out the first current with the second current at all values of the first current corresponding to dose rates below a selected threshold dose rate value. The second current has a maximum value corresponding to that of the first current at the threshold dose rate. The excess of the first current over the second current, which occurs above the threshold, is integrated and an alarm is given at a selected integrated value of the excess corresponding to a selected radiation dose. (AEC)

Manning, F.W.; Groothuis, S.E.; Lykins, J.H.; Papke, D.M.

1962-06-12T23:59:59.000Z

406

Remote radiation dosimetry  

DOE Patents (OSTI)

Disclosed are methods and apparatus for remotely measuring radiation levels. Such are particularly useful for measuring relatively high levels or dosages of radiation being administered in radiation therapy. They are also useful for more general radiation level measurements where remote sensing from the remaining portions of the apparatus is desirable. The apparatus uses a beam generator, such as a laser beam, to provide a stimulating beam. The stimulating beam is preferably of wavelengths shorter than 6 microns, or more advantageously less than 2 microns. The stimulating beam is used to stimulate a remote luminescent sensor mounted in a probe which emits stored luminescent energy resulting from exposure of the sensor to ionizing radiation. The stimulating beam is communicated to the remote luminescent sensor via transmissive fiber which also preferably serves to return the emission from the luminescent sensor. The stimulating beam is advantageously split by a beam splitter to create a detector beam which is measured for power during a reading period during which the luminescent phosphor is read. The detected power is preferably used to control the beam generator to thus produce desired beam power during the reading period. The luminescent emission from the remote sensor is communicated to a suitable emission detector, preferably after filtering or other selective treatment to better isolate the luminescent emission.

Braunlich, Peter F. (Pullman, WA); Tetzlaff, Wolfgang (Pullman, WA); Hegland, Joel E. (Pullman, WA); Jones, Scott C. (Pullman, WA)

1991-01-01T23:59:59.000Z

407

Remote radiation dosimetry  

DOE Patents (OSTI)

Disclosed are methods and apparatus for remotely measuring radiation levels. Such are particularly useful for measuring relatively high levels or dosages of radiation being administered in radiation therapy. They are also useful for more general radiation level measurements where remote sensing from the remaining portions of the apparatus is desirable. The apparatus uses a beam generator, such as a laser beam, to provide a stimulating beam. The stimulating beam is preferably of wavelengths shorter than 6 microns, or more advantageously less than 2 microns. The stimulating beam is used to stimulate a remote luminescent sensor mounted in a probe which emits stored luminescent energy resulting from exposure of the sensor to ionizing radiation. The stimulating beam is communicated to the remote luminescent sensor via a transmissive fiber which also preferably serves to return the emission from the luminescent sensor. The stimulating beam is advantageously split by a beam splitter to create a detector beam which is measured for power during a reading period during which the luminescent phosphor is read. The detected power is preferably used to control the beam generator to thus produce desired beam power during the reading period. The luminescent emission from the remote sensor is communicated to a suitable emission detector, preferably after filtering or other selective treatment to better isolate the luminescent emission. 8 figures.

Braunlich, P.F.; Tetzlaff, W.; Hegland, J.E.; Jones, S.C.

1991-03-12T23:59:59.000Z

408

Packet personal radiation monitor  

DOE Patents (OSTI)

A personal radiation monitor of the chirper type is provided for detecting ionizing radiation. A battery powered high voltage power supply is used to generate and apply a high voltage bias to a G-M tube radiation sensor. The high voltage is monitored by a low-loss sensing network which generates a feedback signal to control the high voltage power supply such that the high voltage bias is recharged to +500 VDC when the current pulses of the sensor, generated by the detection of ionizing radiatonevents, discharges the high voltage bias to +450 VDC. During the high voltage recharge period an audio transducer is activated to produce an audible ''chirp''. The rate of the ''chirps'' is controlled by the rate at which the high voltage bias is recharged, which is proportional to the radiation field intensity to which the sensor is exposed. The chirp rate sensitivity is set to be approximately 1.5 (chirps/min/MR/hr.). The G-M tube sensor is used in a current sensing mode so that the device does not paralyze in a high radiation field. 2 figs.

Phelps, J.E.

1988-03-31T23:59:59.000Z

409

2009 University Coal Research Program  

NLE Websites -- All DOE Office Websites (Extended Search)

2009 University Coal Research Program 2009 University Coal Research Program Description The University Coal Research (UCR) Program provides grants to U.S. colleges and universities to support fundamental research and to develop efficient and environmentally responsible fossil energy technologies. Funded by the U.S. Department of Energy (DOE) Office of Fossil Energy (FE), the program is carried out by DOE's National Energy Technology Laboratory (NETL).

410

1993 - CECM - Simon Fraser University  

E-Print Network (OSTI)

Feb 2, 2001... differentiability of convex functions on various Banach spaces,'' Regional Functional Analysis Conference, Miami University , Oxford, Ohio. 8.

411

Postscript - CECM - Simon Fraser University  

E-Print Network (OSTI)

NERSC/MSRI Workshop. on. Parallel Symbolic Computation. CECM. Centre for Experimental &. Constructive Mathematics. Simon Fraser University. Berkeley...

412

University of Toronto Governing Council  

E-Print Network (OSTI)

In policies approved by the Governing Council, the University community has held that the essential purpose on any issue without reference to prescribed doctrine, as well as the right to criticize the University use of University facilities, in accordance with its policies as they are defined from time to time

Sun, Yu

413

CURRICULUM VITAE University of Idaho  

E-Print Network (OSTI)

CURRICULUM VITAE University of Idaho NAME: Scarnecchia, Dennis L. DATE: July 26, 2004 RANK OR TITLE of Idaho 1990-June 1998, Associate Professor, Department of Fish and Wildlife Resources, University of Idaho 1985-90, Assistant Professor, Department of Animal Ecology, Iowa State University 1986

414

Composition for radiation shielding  

DOE Patents (OSTI)

A composition for use as a radiation shield is disclosed. The shield has a depleted uranium core for absorbing gamma rays and a bismuth coating for preventing chemical corrosion and absorbing gamma rays. Alternatively, a sheet of gadolinium may be positioned between the uranium core and the bismuth coating for absorbing neutrons. The composition is preferably in the form of a container for storing materials that emit radiation such as gamma rays and neutrons. The container is preferably formed by casting bismuth around a pre-formed uranium container having a gadolinium sheeting, and allowing the bismuth to cool. The resulting container is a structurally sound, corrosion-resistant, radiation-absorbing container. 2 figs.

Kronberg, J.W.

1994-08-02T23:59:59.000Z

415

Audible radiation monitor  

DOE Patents (OSTI)

This invention consists of a method and apparatus for monitoring ionizing radiation comprising radiation detectors in electrical connection with an isotopic analyzer and a device for producing chords to which each isotope is mapped so that the device produces a unique chord for each isotope. Preferably the chords are pleasing to the ear, except for chords representing unexpected isotopes, and are louder or softer depending on the level of radioactivity produced by each isotope, and musical instrument voices may be simulated in producing the chords as an aid to distinguishing similar-sounding chords. Because of the representation by chords, information regarding the level and composition of the radiation in an area can be conveyed to workers in that area more effectively and yet without distracting them.

Odell, D.M.C.

1992-12-31T23:59:59.000Z

416

Semiconductor radiation detector  

DOE Patents (OSTI)

A semiconductor detector for ionizing electromagnetic radiation, neutrons, and energetic charged particles. The detecting element is comprised of a compound having the composition I-III-VI.sub.2 or II-IV-V.sub.2 where the "I" component is from column 1A or 1B of the periodic table, the "II" component is from column 2B, the "III" component is from column 3A, the "IV" component is from column 4A, the "V" component is from column 5A, and the "VI" component is from column 6A. The detecting element detects ionizing radiation by generating a signal proportional to the energy deposited in the element, and detects neutrons by virtue of the ionizing radiation emitted by one or more of the constituent materials subsequent to capture. The detector may contain more than one neutron-sensitive component.

Bell, Zane W. (Oak Ridge, TN); Burger, Arnold (Knoxville, TN)

2010-03-30T23:59:59.000Z

417

The Future of University Nuclear Engineering Programs and University  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

The Future of University Nuclear Engineering Programs and The Future of University Nuclear Engineering Programs and University Research and Training Reactors The Future of University Nuclear Engineering Programs and University Research and Training Reactors Nuclear engineering programs and departments with an initial emphasis in fission were formed in the late 1950's and 1960's from interdisciplinary efforts in many of the top research universities, providing the manpower for this technical discipline. In the same time period, for many of these programs, university nuclear reactors were constructed and began their operation, providing some of the facilities needed for research and training of students engaged in this profession. However, over the last decade, the U.S. nuclear science and engineering educational structure has not only stagnated but has reached a state of

418

The Future of University Nuclear Engineering Programs and University  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

The Future of University Nuclear Engineering Programs and The Future of University Nuclear Engineering Programs and University Research and Training Reactors The Future of University Nuclear Engineering Programs and University Research and Training Reactors Nuclear engineering programs and departments with an initial emphasis in fission were formed in the late 1950's and 1960's from interdisciplinary efforts in many of the top research universities, providing the manpower for this technical discipline. In the same time period, for many of these programs, university nuclear reactors were constructed and began their operation, providing some of the facilities needed for research and training of students engaged in this profession. However, over the last decade, the U.S. nuclear science and engineering educational structure has not only stagnated but has reached a state of

419

University Coal Research | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

University Coal Research University Coal Research Universities frequently win Fossil Energy research competitions or join with private companies to submit successful research...

420

Clean Cities: Clean Cities University Online Learning  

NLE Websites -- All DOE Office Websites (Extended Search)

University Online Learning to someone by E-mail Share Clean Cities: Clean Cities University Online Learning on Facebook Tweet about Clean Cities: Clean Cities University Online...

Note: This page contains sample records for the topic "radiation oncology university" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

University of Colorado Hot Water Report  

NLE Websites -- All DOE Office Websites (Extended Search)

Hot water system Brief Contest Report Hot water system Brief Contest Report Recognizing that the sun is an abundant source of clean energy that reaches the earth at an intensity of up to 1000 Watts/m 2 , the University of Colorado will be showcasing top-of-the-line technology in which solar radiation is converted into heat for the purposes of heating the home and providing domestic hot water. Solar Thermal System - Basics Colorado's 2005 Solar Decathlon team has chosen to harness the sun's thermal energy with 4 arrays of 20 Mazdon evacuated tube collectors manufactured by Thermomax, as shown in Figure 1 below. These collectors have incredibly high efficiencies - about 60% over the course of an entire day. In addition, the evacuated tube collectors resist internal condensation and corrosion more effectively than their counterparts

422

Collaborative University Research Education | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Collaborative University Research Collaborative University Research SHARE Collaborative University Research ORNL scientist Jonathan Mielenz works in an anaerobic chamber used to handle biomass-degrading microbes at the Joint Institute for Biological Sciences.Source: ORNL Flickr site With a strong commitment to education, ORNL maintains relationships with many educational institutions and organizations. Many student and faculty programs are administered through Oak Ridge Associated Universities (ORAU) and include opportunities for undergraduates, graduates, postgraduates, faculty, and some pre-college students. The lab also partners with the University of Tennessee in several joint research efforts and though programs aimed at training the next generation of interdisciplinary scientists. These collaborations include:

423

Unruh radiation and Interference effect  

E-Print Network (OSTI)

A uniformly accelerated charged particle feels the vacuum as thermally excited and fluctuates around the classical trajectory. Then we may expect additional radiation besides the Larmor radiation. It is called Unruh radiation. In this report, we review the calculation of the Unruh radiation with an emphasis on the interference effect between the vacuum fluctuation and the radiation from the fluctuating motion. Our calculation is based on a stochastic treatment of the particle under a uniform acceleration. The basics of the stochastic equation are reviewed in another report in the same proceeding. In this report, we mainly discuss the radiation and the interference effect.

Iso, Satoshi; Zhang, Sen

2011-01-01T23:59:59.000Z

424

Unruh radiation and Interference effect  

E-Print Network (OSTI)

A uniformly accelerated charged particle feels the vacuum as thermally excited and fluctuates around the classical trajectory. Then we may expect additional radiation besides the Larmor radiation. It is called Unruh radiation. In this report, we review the calculation of the Unruh radiation with an emphasis on the interference effect between the vacuum fluctuation and the radiation from the fluctuating motion. Our calculation is based on a stochastic treatment of the particle under a uniform acceleration. The basics of the stochastic equation are reviewed in another report in the same proceeding. In this report, we mainly discuss the radiation and the interference effect.

Satoshi Iso; Yasuhiro Yamamoto; Sen Zhang

2011-02-23T23:59:59.000Z

425

A Rapid Radiative Transfer Model for Reflection of Solar Radiation  

Science Conference Proceedings (OSTI)

A rapid analytical radiative transfer model for reflection of solar radiation in plane-parallel atmospheres is developed based on the Sobolev approach and the delta function transformation technique. A distinct advantage of this model over ...

X. Xiang; E. A. Smith; C. G. Justus

1994-07-01T23:59:59.000Z

426

Toward Radiation-Resistant Ionic Liquids. Radiation Stability...  

NLE Websites -- All DOE Office Websites (Extended Search)

Radiation-Resistant Ionic Liquids. Radiation Stability of Sulfonyl Imide Anions I. A. Shkrob, T. W. Marin, Sergey D. Chemerisov, J. L. Hatcher, and J. F. Wishart J. Phys. Chem. B...

427

CROSS VALIDATION OF SATELLITE RADIATION TRANSFER MODELS DURING SWERA PROJECT  

Open Energy Info (EERE)

ISES- 2003 ISES- 2003 CROSS VALIDATION OF SATELLITE RADIATION TRANSFER MODELS DURING SWERA PROJECT IN BRAZIL Enio B. Pereira, Fernando R. Martins 1 Brazilian Institute for Space Research - INPE, São José dos Campos, 12245-970, SP, Brazil Phone + 55 12 39456741, Fax + 55 12 39456810, enio@dge.inpe.br Samuel L. Abreu, Hans Georg Beyer, Sergio Colle, and Solar Energy Laboratory - LABSOLAR - Department of Mechanical Engineering, Federal University of Santa Catarina -UFSC, Florianopolis, 88040-900, (SC), Brazil, Richard Perez The University at Albany (SUNY), ASRC-CESTM, Albany, 12203 (NY), USA Abstract - This work describes the cross validation between two different core radiation transfer models that will be applied during the SWERA (Solar and Wind Energy Assessment): the BRAZIL-SR, and the

428

Assessing the Radiative Impact of Clouds of Low Optical Depth  

NLE Websites -- All DOE Office Websites (Extended Search)

the Radiative Impact of Clouds of the Radiative Impact of Clouds of Low Optical Depth W. O'Hirok and P. Ricchiazzi Institute for Computational Earth System Science University of California Santa Barbara, California C. Gautier Department of Geography and Institute for Computational Earth System Science University of California Santa Barbara, California Introduction Analysis from the International Satellite Cloud Climatology Project (ISCCP) reveals that the global mean cloud optical depth is surprisingly low (i.e., τ = 3.8). While this value is probably dominated by extensive fields of cirrus, the average for liquid water clouds is also likely smaller than expected. It is in this regime (τ <10) where remote measurements of cloud optical thickness or liquid water path (LWP)

429

Radiation Source Replacement Workshop  

Science Conference Proceedings (OSTI)

This report summarizes a Radiation Source Replacement Workshop in Houston Texas on October 27-28, 2010, which provided a forum for industry and researchers to exchange information and to discuss the issues relating to replacement of AmBe, and potentially other isotope sources used in well logging.

Griffin, Jeffrey W.; Moran, Traci L.; Bond, Leonard J.

2010-12-01T23:59:59.000Z

430

Photovoltaic radiation detector element  

DOE Patents (OSTI)

A radiation detector element is formed of a body of semiconductor material, a coating on the body which forms a photovoltaic junction therewith, and a current collector consisting of narrow metallic strips, the aforesaid coating having an opening therein the edge of which closely approaches but is spaced from the current collector strips.

Agouridis, Dimitrios C. (Oak Ridge, TN)

1983-01-01T23:59:59.000Z

431

Local microwave background radiation  

E-Print Network (OSTI)

An inquiry on a possible local origin for the Microwave Background Radiation is made. Thermal MBR photons are contained in a system called {\\it magnetic bottle} which is due to Earth magnetic field and solar wind particles, mostly electrons. Observational tests are anticipated.

Domingos S. L. Soares

2006-07-11T23:59:59.000Z

432

Hyperon radiative decay  

SciTech Connect

The radiative decay widths of the low-lying strange baryons are calculated both within the relativistic quark bag model and the nonrelativistic potential model. These widths are found to depend sensitively upon the quark-model dynamics through multiplet mixing and q/sup 4/q-bar admixtures. The comparison between our calculated results and the very limited experimental data is discussed.

Kaxiras, E.; Moniz, E.J.; Soyeur, M.

1985-08-01T23:59:59.000Z

433

Radiation detector spectrum simulator  

SciTech Connect

A small battery operated nuclear spectrum simulator having a noise source nerates pulses with a Gaussian distribution of amplitudes. A switched dc bias circuit cooperating therewith generates several nominal amplitudes of such pulses and a spectral distribution of pulses that closely simulates the spectrum produced by a radiation source such as Americium 241.

Wolf, Michael A. (Los Alamos, NM); Crowell, John M. (Los Alamos, NM)

1987-01-01T23:59:59.000Z

434

Photovoltaic radiation detector element  

DOE Patents (OSTI)

A radiation detector element is formed of a body of semiconductor material, a coating on the body which forms a photovoltaic junction therewith, and a current collector consisting of narrow metallic strips, the aforesaid coating having an opening therein in the edge of which closely approaches but is spaced from the current collector strips.

Agouridis, D.C.

1980-12-17T23:59:59.000Z

435

Radiation detector spectrum simulator  

DOE Patents (OSTI)

A small battery operated nuclear spectrum simulator having a noise source generates pulses with a Gaussian distribution of amplitudes. A switched dc bias circuit cooperating therewith to generate several nominal amplitudes of such pulses and a spectral distribution of pulses that closely simulates the spectrum produced by a radiation source such as Americium 241.

Wolf, M.A.; Crowell, J.M.

1985-04-09T23:59:59.000Z

436

High-Fidelity Multi-Phase Radiation Module for Modern Coal Combustion Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Task Task Description Sample calculations LBL-PMC Future Work High-Fidelity Multi-Phase Radiation Module for Modern Coal Combustion Systems Jian Cai 1 Ricardo Marquez 1 Michael F. Modest 2 1 Postdoctoral Research Associate 2 Shaffer and George Professor of Engineering University of California Merced Merced, CA 95343, USA DE-FG26-10FE0003801 May 2012 - Pittsburgh 2/17 Introduction Task Description Sample calculations LBL-PMC Future Work Radiation Challenges in Multi-Phase Reacting Flows Radiative heat transfer in high temperature combustion systems Thermal radiation becomes very important at elevated temperatures Coal and hydrocarbon fuels C n H m → H 2 O, CO 2 , CO, NO x , soot, char, ash CO 2 , H 2 O, soot, char and ash strongly emit and absorb radiative energy (lower temperature levels) Radiative effects are conveniently ignored or treated with very crude models Neglecting

437

Low Dose Radiation Research Program: Impact of Genetic Factors on the  

NLE Websites -- All DOE Office Websites (Extended Search)

Genetic Factors on the Heritable Effects of Paternal Exposure to Genetic Factors on the Heritable Effects of Paternal Exposure to Low-Dose Radiation Janet E. Baulch University of California, Davis Why This Project? There is concern about the possible genetic effects of low dose radiation exposure. As a result, much effort has gone towards understanding mutation of cells due to radiation exposure. While recognition of the potential for mutation from exposure to ionizing radiation has led to extensive research, less effort has been given to the possible delayed risk of radiation exposure transmitted to the offspring of the exposed parent. Data from animal models show that parental exposures to DNA-damaging agents, such as ionizing radiation, predispose the offspring to serious health effects, including cancer offspring. Additionally, data from both humans and animal

438

Effects of low-dose radiation on immune cell function using genetic and  

NLE Websites -- All DOE Office Websites (Extended Search)

low-dose radiation on immune cell function using genetic and low-dose radiation on immune cell function using genetic and metabolomics approaches Henghong Li Georgetown University Abstract The objectives of this study are to investigate acute and persistent effects of ionizing radiation and space radiation on immune cell subsets and function. The role(s) for p38 MAP kinase in such radiation responses is being investigated using a genetic approach where an engineered mouse line has had one wt p38α gene replaced with a dominantnegative mutant (p38α+/DN). T cells are one of the most radiosensitive cell types in vivo, and radiation is known to impact CD4 T cell function long term. T cells are normally activated by antigen, which triggers differentiation to specific subsets involving various cytokines. In addition, T cells have a

439

Technical Sessions A Study of Longwave Radiation Codes for Climate Studies:  

NLE Websites -- All DOE Office Websites (Extended Search)

A Study of Longwave Radiation A Study of Longwave Radiation Codes for Climate Studies: Validation with ARM Observations and Tests in General Circulation Models R. G. Ellingson F. Baer Department of Meteorology University of Maryland College Park, MD 20742 Introduction the radiation sensitivity problem. We anticipate that the outcome of this approach will provide both a better longwave radiative forcing algorithm and a better understanding of how longwave radiative forcing influences the equilibrium climate of the atmosphere. Nature of Longwave Problems Longwave radiation quantities-radiances, fluxes and heating rates-are usually calculated in GCM models as the cloud amount weighted average of the values for clear and homogeneous cloud conditions. For example, the downward flux at the surface, F, may be written as

440

Radiation Safety Manual Dec 2012 Page 1 RADIATION SAFETY  

E-Print Network (OSTI)

. Management Commitment B. Training C. Monitoring of Individual Radiation Exposures D. Program Reviews 1 of Radiation A. Research Applications 1. Non-Human User 2. Animal Use 3. Human Use B. Clinical Applications C Materials Chapter VI: Occupational Exposure to Radiation and Personnel Monitoring and Bioassay Program #12;A

Grishok, Alla

Note: This page contains sample records for the topic "radiation oncology university" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

MEASUREMENT AND ANALYSIS OF CIRCUMSOLAR RADIATION  

E-Print Network (OSTI)

Character of Solar and Circumsolar Radiation. Proceedings ~all of the direct solar radiation (that originating from thethat attenuate the solar radiation available to terres-

Grether, Donald

2013-01-01T23:59:59.000Z

442

MEASUREMENT AND ANALYSIS OF CIRCUMSOLAR RADIATION  

E-Print Network (OSTI)

all of the direct solar radiation (that originating from thea suitable site for solar radiation measurements. A requestused to estimate the solar radiation per unit wavelength at

Grether, D.F.

2013-01-01T23:59:59.000Z

443

"Radiative Liquid Lithium (metal) Divertor" Inventor..-- Masayuki...  

NLE Websites -- All DOE Office Websites (Extended Search)

"Radiative Liquid Lithium (metal) Divertor" Inventor..-- Masayuki Ono The invention utilizes liquid lithium as a radiative material. The radiative process greatly reduces the...

444

TIME-RESOLVED SPECTROSCOPY USING SYNCHROTRON RADIATION  

E-Print Network (OSTI)

3395 (1977). H. Winick, VUV Radiation Physics, edited by E.M. W. Zemansky, Resonance Radiation and Exci- ted Atoms, (II. III. Appendix A - Radiation Trapping. Appendix B -

Poliakoff, E.D.

2010-01-01T23:59:59.000Z

445

Terahertz radiation from laser accelerated electron bunches  

E-Print Network (OSTI)

NUMBER 5 MAY 2004 Terahertz radiation from laser acceleratedand millimeter wave radiation from laser acceleratedNo. 5, May 2004 Terahertz radiation from laser accelerated

2004-01-01T23:59:59.000Z

446

POLARIZATION OF THE COSMIC BACKGROUND RADIATION  

E-Print Network (OSTI)

Galactic Synchrotron Radiation at 33 GHz NOIiWNPQaa s x s sthe Cosmic Background Radiation Philip Michael Lubin Spacethe Cosmic Background Radiation. The ground-based experiment

Lubin, Philip Lubin

2010-01-01T23:59:59.000Z

447

Betatron radiation from density tailored plasmas  

E-Print Network (OSTI)

Betatron radiation from density tailored plasmas K. Tathe resulting betatron radiation spectrum can therefore bepro?le, the betatron radiation emitted by theses electrons

Ta Phuoc, Kim

2010-01-01T23:59:59.000Z

448

Radiative electron capture by fully stripped channeled light ions  

Science Conference Proceedings (OSTI)

The cross sections for radiative electron capture (REC) into the [ital K] shell of bare and H-like light ions of [sup 12]C, [sup 16]O, [sup 19]F, and [sup 32]S are measured at different energies, under channeling conditions using a Si single crystal as target. These cross section data using different projectiles are shown to fall on a universal curve when plotted against a scaled variable, the adiabaticity parameter [eta][sub [ital K

Tribedi, L.C.; Nanal, V.; Press, M.R.; Kurup, M.B.; Prasad, K.G.; Tandon, P.N. (Tata Institute of Fundamental Research, Bombay 400 005 (India))

1994-01-01T23:59:59.000Z

449

Radiative Forcing of Climate Change  

SciTech Connect

Chapter 6 of the IPCC Third Assessment Report Climate Change 2001: The Scientific Basis. Sections include: Executive Summary 6.1 Radiative Forcing 6.2 Forcing-Response Relationship 6.3 Well-Mixed Greenhouse Gases 6.4 Stratospheric Ozone 6.5 Radiative Forcing By Tropospheric Ozone 6.6 Indirect Forcings due to Chemistry 6.7 The Direct Radiative Forcing of Tropospheric Aerosols 6.8 The Indirect Radiative Forcing of Tropospheric Aerosols 6.9 Stratospheric Aerosols 6.10 Land-use Change (Surface Albedo Effect) 6.11 Solar Forcing of Climate 6.12 Global Warming Potentials hydrocarbons 6.13 Global Mean Radiative Forcings 6.14 The Geographical Distribution of the Radiative Forcings 6.15 Time Evolution of Radiative Forcings Appendix 6.1 Elements of Radiative Forcing Concept References.

Ramaswamy, V.; Boucher, Olivier; Haigh, J.; Hauglustaine, D.; Haywood, J.; Myhre, G.; Nakajima, Takahito; Shi, Guangyu; Solomon, S.; Betts, Robert E.; Charlson, R.; Chuang, C. C.; Daniel, J. S.; Del Genio, Anthony D.; Feichter, J.; Fuglestvedt, J.; Forster, P. M.; Ghan, Steven J.; Jones, A.; Kiehl, J. T.; Koch, D.; Land, C.; Lean, J.; Lohmann, Ulrike; Minschwaner, K.; Penner, Joyce E.; Roberts, D. L.; Rodhe, H.; Roelofs, G.-J.; Rotstayn, Leon D.; Schneider, T. L.; Schumann, U.; Schwartz, Stephen E.; Schwartzkopf, M. D.; Shine, K. P.; Smith, Steven J.; Stevenson, D. S.; Stordal, F.; Tegen, I.; van Dorland, R.; Zhang, Y.; Srinivasan, J.; Joos, Fortunat

2001-10-01T23:59:59.000Z

450

NREL: Solar Radiation Research - Capabilities  

NLE Websites -- All DOE Office Websites (Extended Search)

Capabilities NREL's solar radiation research staff provides expertise in renewable energy measurement and instrumentation. Major capabilities include solar resource measurement,...

451

Gamma radiation field intensity meter  

DOE Patents (OSTI)

A gamma radiation intensity meter measures dose rate of a radiation field. The gamma radiation intensity meter includes a tritium battery emitting beta rays generating a current which is essentially constant. Dose rate is correlated to an amount of movement of an electroscope element charged by the tritium battery. Ionizing radiation decreases the voltage at the element and causes movement. A bleed resistor is coupled between the electroscope support element or electrode and the ionization chamber wall electrode. 4 figs.

Thacker, L.H.

1994-08-16T23:59:59.000Z

452

Gamma radiation field intensity meter  

SciTech Connect

A gamma radiation intensity meter measures dose rate of a radiation field. The gamma radiation intensity meter includes a tritium battery emitting beta rays generating a current which is essentially constant. Dose rate is correlated to an amount of movement of an electroscope element charged by the tritium battery. Ionizing radiation decreases the voltage at the element and causes movement. A bleed resistor is coupled between the electroscope support element or electrode and the ionization chamber wall electrode.

Thacker, Louis H. (Knoxville, TN)

1995-01-01T23:59:59.000Z

453

Gamma radiation field intensity meter  

SciTech Connect

A gamma radiation intensity meter measures dose rate of a radiation field. The gamma radiation intensity meter includes a tritium battery emitting beta rays generating a current which is essentially constant. Dose rate is correlated to an amount of movement of an electroscope element charged by the tritium battery. Ionizing radiation decreases the voltage at the element and causes movement. A bleed resistor is coupled between the electroscope support element or electrode and the ionization chamber wall electrode.

Thacker, Louis H. (Knoxville, TN)

1994-01-01T23:59:59.000Z

454

Hybrid Radiator-Cooling System  

Technology Development & Commercialization Current Challenges Coolant radiators in highway trucks are designed to transfer maximum heat at a ...

455

Gamma radiation field intensity meter  

DOE Patents (OSTI)

A gamma radiation intensity meter measures dose rate of a radiation field. The gamma radiation intensity meter includes a tritium battery emitting beta rays generating a current which is essentially constant. Dose rate is correlated to an amount of movement of an electroscope element charged by the tritium battery. Ionizing radiation decreases the voltage at the element and causes movement. A bleed resistor is coupled between the electroscope support element or electrode and the ionization chamber wall electrode. 4 figs.

Thacker, L.H.

1995-10-17T23:59:59.000Z

456

REGULATIONS OF THE UNIVERSITY OF FLORIDA  

E-Print Network (OSTI)

, the University Police, the University's armored car vendor, and the staff of the Florida Museum of Natural

Roy, Subrata

457

UNIVERSITY STUDENT TITLE OF TALK OU  

Science Conference Proceedings (OSTI)

... EL University of Puerto Rico Rivera-Cotty, Norman Instrumentation of Geothermal Heat Pump Test System EL Loyola University ...

2012-12-17T23:59:59.000Z

458

University Partnerships / Academic Alliances | National Nuclear...  

National Nuclear Security Administration (NNSA)

Home > About Us > Our Programs > Defense Programs > Office of Research, Development, Test Capabilities and Evaluation > University Partnerships Academic Alliances University...

459

Universal Lighting Technologies | Open Energy Information  

Open Energy Info (EERE)

Product Universal Lighting Technologies develops, manufactures and markets energy efficient lighting technologies including HID, CFLs and ballasts. References Universal...

460

Sensitivities of SCMs to New Parameterizations of Cloud-Radiative Interactions  

NLE Websites -- All DOE Office Websites (Extended Search)

Sensitivities of SCMs to New Parameterizations Sensitivities of SCMs to New Parameterizations of Cloud-Radiative Interactions G. M. McFarquhar Department of Atmospheric Sciences University of Illinois, Urbana, Illinois S. F. Iacobellis and R. C. J. Somerville Scripps Institution of Oceanography La Jolla, California G. G. Mace and Y. Zhang Department of Atmospheric Sciences University of Utah Salt Lake City, Utah Introduction Accurate parameterizations of, and in terms of, ice cloud effective radius (r e ) are crucial for accurate model estimates of upwelling and downwelling radiative fluxes, and of cloud radiative forcing (CRF). Zhang et al. (1999), and Iacobellis and Somerville (2000) have all found that radiative fluxes are sensitive to the specification of r e and fallout, and that the most realistic vertical distribution of clouds is

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461

Coherent Radiation in Insertion Devices  

E-Print Network (OSTI)

We calculate the coherent radiation in an undulator/wiggler with a vacuum chamber of arbitrary cross section. The backward radiation is a coherent and it has wavelengths about twice the period of the undulator/wiggler. Mostly of coherent radiation is going with the wavelengths approximately the bunch length at small angles however.

Mikhailichenko, A A

2011-01-01T23:59:59.000Z

462

Cerenkov radiation of spinning particle  

E-Print Network (OSTI)

The Cerenkov radiation of a neutral particle with magnetic moment is considered, as well as the spin-dependent contribution to the Cerenkov radiation of a charged spinning particle. The corresponding radiation intensity is obtained for an arbitrary value of spin and for an arbitrary spin orientation with respect to velocity.

I. B. Khriplovich

2008-08-11T23:59:59.000Z

463

COLUMBIA RADIATION LABORATORY RESEARCH INVESTIGATION DIRECTED TOWARD EXTENDING  

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iVP-^"^^? iVP-^"^^? COLUMBIA RADIATION LABORATORY RESEARCH INVESTIGATION DIRECTED TOWARD EXTENDING THE USEFUL RANGE OF THE ELECTROMAGNETIC SPECTRUM Special Technical Report Signal Corps Contract DA-36-039 SC-64630 DA Project No. 3-99-10-022 SC Project No. 102B U. S. Army Laboratory Procurement Office Signal Corps Supply Agency Fort Monmouth, New Jersey The Trustees of Columbia University in the City of New York Box 6, Low Memorial Library New York 27, New York March 1, 1956 DISCLAIMER Portions of this document may be illegible in electronic image products. Images are produced from the best available original document. COLUMBIA RADIATION LABORATORY Collected Papers on the AAASER (Microwave Amplification by Stimulated Emission of Radiation) Special Technical Report

464

Low Dose Radiation Research Program: Robert L. Ullrich  

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Robert L. Ullrich Robert L. Ullrich Colorado State University Currently Funded Projects Radiation Leukemogenesis at Low Dose Rates (NSCOR) Genetic Mechanisms of Induced Chromosomal Instability and their Relationships with Radiation Tumorigenesis Technical Abstracts 2006 Workshop: The Role of Telomere Dysfunction in Driving Genomic Instability Bailey, S.M., Williams, E.S., and Ullrich, R.L. 2005 Workshop: Dsyfunctional Mammalian Telomeres in DNA-PKcs Deficient Backgrounds Bailey, S.M., Williams, E., Hagelstrom, T., and Ullrich, R.L. 2003 Workshop: Dysfunctional Mammalian Telomeres Join to Double-Strand Breaks Bailey, S.M., Goodwin, E.H., Williams, E., and Ullrich, R.L. 2002 Workshop: Dysfunctional Telomeres, Radiation-Induced Instability and Tumorigenesis Bailey, S.M., Goodwin, E.H., Cornforth, M.N., and Ullrich, R.L.

465

Low Dose Radiation Research Program: Rainer K. Sachs  

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Rainer K. Sachs Rainer K. Sachs University of California, Berkeley Funded Projects BIO-BASED RISK MODELING 03-20: Modeling the Interrelations Among Radiation-Induced Bystander Effects, Genomic Instability and Cancer Cytogenetic Tests of Radiobiological Models Relating Epidemiologically Measurable Risks to Low-Dose Risks Technical Abstracts 2006 Workshop The Bystander Effect in Normal Human 3-D Tissue: Experiments, Models, and Implications Brenner, D., Ponnaiya, B., Shuryak, I., Sachs, R., and Geard, D. Radiation Carcinogenesis Risk as Influenced by Intercellular Interaction Hahnfeldt, P., Hlatky, L., and Sachs, R.K. 2005 Workshop: Modelling Intercellular Interactions During Radiation Carcinogenesis Sachs, R.K., Chan, M., Hlatky, L., and Hahnfeldt, P. 2003 Workshop: Chromosome Spatial Clustering Uncovered Through Radiogenic Aberrations

466

Low Dose Radiation Exposure: Exploring Bystander Effects In Vivo.  

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Exposure: Exploring Bystander Effects Exposure: Exploring Bystander Effects In Vivo. 1 Blyth, B.J., 1 Sykes, P.J. 1 Department of Haematology and Genetic Pathology, Flinders University and Medical Centre, Bedford Park, South Australia, 5042, The general population is daily exposed to chronic, low doses of ionizing radiation from both natural and artificial sources. The shape of the radiation dose-response curve at these low doses is currently linearly extrapolated from data obtained after high dose exposure due to the low sensitivity of traditional biological assays after near-background exposures. At odds with this Linear No-Threshold model, are the phenomena collectively referred to as the radiation-induced bystander effect. The bystander effect describes a collection of in vitro

467

Radiative Importance of ThinŽ Liquid Water Clouds  

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Program Program Accomplishments of the Cloud Properties Working Group (CPWG) August 2006 Cloud Radiative Forcing at the ARM Climate Research Facility: Using ARM Data to Establish Testable Metrics for GCM Predictions of Cloud Feedback Gerald Mace University of Utah, Salt Lake City, Utah The scientific underpinning of the Atmospheric Radiation Measurement (ARM) Program is largely based on the premise that long term ground-based measurements of certain quantities provide information sufficient to test the skill of general circulation models (GCMs) to predict radiative heating and cloud feedbacks (Stokes and Schwartz, 1994; Ackerman and Stokes, 2003). This hypothesis is based on the assumption that some set of long-term ground-based measurements provide sufficient information to characterize the physical state of the atmospheric

468

Why sequence radiation-resistant bacterium Deinococcus grandis?  

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radiation-resistant radiation-resistant bacterium Deinococcus grandis? A fifth of the United States' electricity is generated from nuclear power, which can also be used for medical procedures and other applications. The radioactive waste generated by nuclear reactors, hospitals and universities need to be disposed of in specially selected sites. Deinococcus bacteria have the capacity to add electrons to a variety of metals, including uranium, chromium, mercury, technetium, iron and manganese. Due to this unique characteristic, this group of extremely radiation-resistant bacteria has been considered as a prospective candidate to help clean up radioactive waste sites. However, many Deinococcus bacteria require oxygen, which is a problem considering most waste environments are anaerobic.

469

Low Dose Radiation Research Program: Interaction between Tissue and  

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between Tissue and Cellular Stress Responses: Effect of between Tissue and Cellular Stress Responses: Effect of TGF-ß Depletion on Radiation-Induced p53 Response M.H. Barcellos-Hoff, S.A. Ravani, R.L. Henshall, K.B. Ewan, R.L. Warters,* B. Parvin Lawrence Berkeley National Laboratory *University of Utah One of the most widely studied cellular responses to radiation is the activation of the transcription factor, p53, whose abundance and action dictates individual cellular fate decisions regarding proliferation, differentiation and death. A cell's response to damage needs to be rapid. Thus, it is not surprising that the activation of the p53 stress response primarily involves post-translational changes in the p53 protein. Whereas intracellular radiation-induced mediators of p53 stability have been the subject of intense study, little is known about the extracellular factors

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