National Library of Energy BETA

Sample records for rfd reference dose

  1. Dose homogeneity specification for reference dosimetry of nonstandard fields

    SciTech Connect

    Chung, Eunah; Soisson, Emilie; Seuntjens, Jan [Medical Physics Unit, McGill University, Montreal General Hospital (L5-113), 1650 Cedar Avenue, Montreal, Quebec H3G 1A4 (Canada); Medical Physics Unit, McGill University and Department of Medical Physics, McGill University Health Centre, Montreal General Hospital (L5-113), 1650 Cedar Avenue, Montreal, Quebec H3G 1A4 (Canada); Medical Physics Unit, McGill University, Montreal General Hospital (L5-113), 1650 Cedar Avenue, Montreal, Quebec H3G 1A4 (Canada)

    2012-01-15

    Purpose: To investigate the sensitivity of the plan-class specific correction factor to dose distributions in composite nonstandard field dosimetry. Methods: A cylindrical water-filled PMMA phantom was constructed at the center of which reference absorbed dose could be measured. Ten different TomoTherapy-based IMRT fields were created on the CT images of the phantom. The dose distribution for each IMRT field was estimated at the position of a radiation detector or ionization chamber. The dose in each IMRT field normalized to that in a reference 10 x 10 cm{sup 2} field was measured using a PTW micro liquid ion chamber. Based on the new dosimetry formalism, a plan-class specific correction factor k{sub Q{sub p{sub c{sub s{sub r,Q}{sup f{sub p}{sub c}{sub s}{sub r},f{sub r}{sub e}{sub f}}}}}} for each field was measured for two Farmer-type chambers, Exradin A12 and NE2571, as well as for a smaller Exradin A1SL chamber. The dependence of the measured correction factor on parameters characterizing dose distribution was analyzed. Results: Uncertainty on the plan-class specific correction factor measurement was in the range of 0.3%-0.5% and 0.3%-0.8% for the Farmer-type chambers and the Exradin A1SL, respectively. When the heterogeneity of the central region of the target volume was less than 5%, the correction factor did not differ from unity by more than 0.7% for the three air-filled ionization chambers. For more heterogeneous dose deliveries, the correction factor differed from unity by up to 2.4% for the Farmer-type chambers. For the Exradin A1SL, the correction factor was closer to unity due to the reduced effect of dose gradients, while it was highly variable in different IMRT fields because of a more significant impact of positioning uncertainties on the response of this chamber. Conclusions: The authors have shown that a plan-class specific correction factor can be specified as a function of plan evaluation parameters especially for Farmer-type chambers. This work

  2. Factors affecting quality for beta dose rate measurements using ISO 6980 series I reference sources

    SciTech Connect

    Burns, R.E. Jr.; O`Brien, J.M. Jr.

    1993-12-31

    Atlan-Tech, Inc. has performed several calibrations of ISO 6980 Series 1 reference beta sources over the past two to three years. There were many problems encountered in attempting to compare the results of these calibrations with those from other laboratories, indicating the need for more standardization in the methodology employed for the measurement of the absorbed dose rate from ISO 6980 Series 1 reference beta sources. This document describes some of the problems encountered in attempting to intercompare results of beta dose-rate measurements. It proposes some solutions in an attempt to open a dialogue among facilities using reference beta standards for the purpose of promoting better measurement quality assurance through data intercomparison.

  3. Reference computations of public dose and cancer risk from airborne releases of plutonium. Nuclear safety technical report

    SciTech Connect

    Peterson, V.L.

    1993-12-23

    This report presents results of computations of doses and the associated health risks of postulated accidental atmospheric releases from the Rocky Flats Plant (RFP) of one gram of weapons-grade plutonium in a form that is respirable. These computations are intended to be reference computations that can be used to evaluate a variety of accident scenarios by scaling the dose and health risk results presented here according to the amount of plutonium postulated to be released, instead of repeating the computations for each scenario. The MACCS2 code has been used as the basis of these computations. The basis and capabilities of MACCS2 are summarized, the parameters used in the evaluations are discussed, and results are presented for the doses and health risks to the public, both the Maximum Offsite Individual (a maximally exposed individual at or beyond the plant boundaries) and the population within 50 miles of RFP. A number of different weather scenarios are evaluated, including constant weather conditions and observed weather for 1990, 1991, and 1992. The isotopic mix of weapons-grade plutonium will change as it ages, the {sup 241}Pu decaying into {sup 241}Am. The {sup 241}Am reaches a peak concentration after about 72 years. The doses to the bone surface, liver, and whole body will increase slightly but the dose to the lungs will decrease slightly. The overall cancer risk will show almost no change over this period. This change in cancer risk is much smaller than the year-to-year variations in cancer risk due to weather. Finally, x/Q values are also presented for other applications, such as for hazardous chemical releases. These include the x/Q values for the MOI, for a collocated worker at 100 meters downwind of an accident site, and the x/Q value integrated over the population out to 50 miles.

  4. Reference computations of public dose and cancer risk from airborne releases of uranium and Class W plutonium

    SciTech Connect

    Peterson, V.L.

    1995-06-06

    This report presents ``reference`` computations that can be used by safety analysts in the evaluations of the consequences of postulated atmospheric releases of radionuclides from the Rocky Flats Environmental Technology Site. These computations deal specifically with doses and health risks to the public. The radionuclides considered are Class W Plutonium, all classes of Enriched Uranium, and all classes of Depleted Uranium. (The other class of plutonium, Y, was treated in an earlier report.) In each case, one gram of the respirable material is assumed to be released at ground leveL both with and without fire. The resulting doses and health risks can be scaled to whatever amount of release is appropriate for a postulated accident being investigated. The report begins with a summary of the organ-specific stochastic risk factors appropriate for alpha radiation, which poses the main health risk of plutonium and uranium. This is followed by a summary of the atmospheric dispersion factors for unfavorable and typical weather conditions for the calculation of consequences to both the Maximum Offsite Individual and the general population within 80 km (50 miles) of the site.

  5. Using physiologically based pharmacokinetic modeling to address nonlinear kinetics and changes in rodent physiology and metabolism due to aging and adaptation in deriving reference values for propylene glycol methyl ether and propylene glycol methyl ether acetate.

    SciTech Connect

    Kirman, C R.; Sweeney, Lisa M.; Corley, Rick A.; Gargas, M L.

    2005-04-01

    Reference values, including an oral reference dose (RfD) and an inhalation reference concentration (RfC), were derived for propylene glycol methyl ether (PGME), and an oral RfD was derived for its acetate (PGMEA). These values were based upon transient sedation observed in F344 rats and B6C3F1 mice during a two-year inhalation study. The dose-response relationship for sedation was characterized using internal dose measures as predicted by a physiologically based pharmacokinetic (PBPK) model for PGME and its acetate. PBPK modeling was used to account for changes in rodent physiology and metabolism due to aging and adaptation, based on data collected during weeks 1, 2, 26, 52, and 78 of a chronic inhalation study. The peak concentration of PGME in richly perfused tissues was selected as the most appropriate internal dose measure based upon a consideration of the mode of action for sedation and similarities in tissue partitioning between brain and other richly perfused tissues. Internal doses (peak tissue concentrations of PGME) were designated as either no-observed-adverse-effect levels (NOAELs) or lowest-observed-adverse-effect levels (LOAELs) based upon the presence or absence of sedation at each time-point, species, and sex in the two year study. Distributions of the NOAEL and LOAEL values expressed in terms of internal dose were characterized using an arithmetic mean and standard deviation, with the mean internal NOAEL serving as the basis for the reference values, which was then divided by appropriate uncertainty factors. Where data were permitting, chemical-specific adjustment factors were derived to replace default uncertainty factor values of ten. Nonlinear kinetics are were predicted by the model in all species at PGME concentrations exceeding 100 ppm, which complicates interspecies and low-dose extrapolations. To address this complication, reference values were derived using two approaches which differ with respect to the order in which these extrapolations

  6. Reference air kerma and kerma-area product as estimators of peak skin dose for fluoroscopically guided interventions

    SciTech Connect

    Kwon, Deukwoo; Little, Mark P.; Miller, Donald L.

    2011-07-15

    Purpose: To determine more accurate regression formulas for estimating peak skin dose (PSD) from reference air kerma (RAK) or kerma-area product (KAP). Methods: After grouping of the data from 21 procedures into 13 clinically similar groups, assessments were made of optimal clustering using the Bayesian information criterion to obtain the optimal linear regressions of (log-transformed) PSD vs RAK, PSD vs KAP, and PSD vs RAK and KAP. Results: Three clusters of clinical groups were optimal in regression of PSD vs RAK, seven clusters of clinical groups were optimal in regression of PSD vs KAP, and six clusters of clinical groups were optimal in regression of PSD vs RAK and KAP. Prediction of PSD using both RAK and KAP is significantly better than prediction of PSD with either RAK or KAP alone. The regression of PSD vs RAK provided better predictions of PSD than the regression of PSD vs KAP. The partial-pooling (clustered) method yields smaller mean squared errors compared with the complete-pooling method.Conclusion: PSD distributions for interventional radiology procedures are log-normal. Estimates of PSD derived from RAK and KAP jointly are most accurate, followed closely by estimates derived from RAK alone. Estimates of PSD derived from KAP alone are the least accurate. Using a stochastic search approach, it is possible to cluster together certain dissimilar types of procedures to minimize the total error sum of squares.

  7. Radiation dose in coronary angiography and intervention: initial results from the establishment of a multi-centre diagnostic reference level in Queensland public hospitals

    SciTech Connect

    Crowhurst, James A; Whitby, Mark; Thiele, David; Halligan, Toni; Westerink, Adam; Crown, Suzanne; Milne, Jillian

    2014-09-15

    Radiation dose to patients undergoing invasive coronary angiography (ICA) is relatively high. Guidelines suggest that a local benchmark or diagnostic reference level (DRL) be established for these procedures. This study sought to create a DRL for ICA procedures in Queensland public hospitals. Data were collected for all Cardiac Catheter Laboratories in Queensland public hospitals. Data were collected for diagnostic coronary angiography (CA) and single-vessel percutaneous intervention (PCI) procedures. Dose area product (P{sub KA}), skin surface entrance dose (K{sub AR}), fluoroscopy time (FT), and patient height and weight were collected for 3 months. The DRL was set from the 75th percentile of the P{sub KA.} 2590 patients were included in the CA group where the median FT was 3.5 min (inter-quartile range = 2.3–6.1). Median K{sub AR} = 581 mGy (374–876). Median P{sub KA} = 3908 uGym{sup 2} (2489–5865) DRL = 5865 uGym{sup 2}. 947 patients were included in the PCI group where median FT was 11.2 min (7.7–17.4). Median K{sub AR} = 1501 mGy (928–2224). Median P{sub KA} = 8736 uGym{sup 2} (5449–12,900) DRL = 12,900 uGym{sup 2}. This study established a benchmark for radiation dose for diagnostic and interventional coronary angiography in Queensland public facilities.

  8. Patient Dose During Carotid Artery Stenting With Embolic-Protection Devices: Evaluation With Radiochromic Films and Related Diagnostic Reference Levels According to Factors Influencing the Procedure

    SciTech Connect

    D'Ercole, Loredana; Quaretti, Pietro; Cionfoli, Nicola; Klersy, Catherine; Bocchiola, Milena; Rodolico, Giuseppe; Azzaretti, Andrea; Lisciandro, Francesco; Cascella, Tommaso; Zappoli Thyrion, Federico

    2013-04-15

    To measure the maximum entrance skin dose (MESD) on patients undergoing carotid artery stenting (CAS) using embolic-protection devices, to analyze the dependence of dose and exposure parameters on anatomical, clinical, and technical factors affecting the procedure complexity, to obtain some local diagnostic reference levels (DRLs), and to evaluate whether overcoming DRLs is related to procedure complexity. MESD were evaluated with radiochromic films in 31 patients (mean age 72 {+-} 7 years). Five of 33 (15 %) procedures used proximal EPD, and 28 of 33 (85 %) procedures used distal EPD. Local DRLs were derived from the recorded exposure parameters in 93 patients (65 men and 28 women, mean age 73 {+-} 9 years) undergoing 96 CAS with proximal (33 %) or distal (67 %) EPD. Four bilateral lesions were included. MESD values (mean 0.96 {+-} 0.42 Gy) were <2 Gy without relevant dependence on procedure complexity. Local DRL values for kerma area product (KAP), fluoroscopy time (FT), and number of frames (N{sub FR}) were 269 Gy cm{sup 2}, 28 minutes, and 251, respectively. Only simultaneous bilateral treatment was associated with KAP (odds ratio [OR] 10.14, 95 % confidence interval [CI] 1-102.7, p < 0.05) and N{sub FR} overexposures (OR 10.8, 95 % CI 1.1-109.5, p < 0.05). Type I aortic arch decreased the risk of FT overexposure (OR 0.4, 95 % CI 0.1-0.9, p = 0.042), and stenosis {>=} 90 % increased the risk of N{sub FR} overexposure (OR 2.8, 95 % CI 1.1-7.4, p = 0.040). At multivariable analysis, stenosis {>=} 90 % (OR 2.8, 95 % CI 1.1-7.4, p = 0.040) and bilateral treatment (OR 10.8, 95 % CI 1.1-109.5, p = 0.027) were associated with overexposure for two or more parameters. Skin doses are not problematic in CAS with EPD because these procedures rarely lead to doses >2 Gy.

  9. EPA`s program for risk assessment guidelines: Quantification issues

    SciTech Connect

    Dourson, M.L.

    1990-12-31

    The quantitative procedures associated with noncancer risk assessment include reference dose (RfD), benchmark dose, and severity modeling. The RfD, which is part of the EPA risk assessment guidelines, is an estimation of a level that is likely to be without any health risk to sensitive individuals. The RfD requires two major judgments: the first is choice of a critical effect(s) and its No Observed Adverse Effect Level (NOAEL); the second judgment is choice of an uncertainty factor. This paper discusses major assumptions and limitations of the RfD model.

  10. Determination of absorbed dose in water at the reference point D(r{sub 0},{theta}{sub 0}) for an {sup 192}Ir HDR brachytherapy source using a Fricke system

    SciTech Connect

    Austerlitz, C.; Mota, H. C.; Sempau, J.; Benhabib, S. M.; Campos, D.; Allison, R.; Almeida, C. E. de; Zhu, D.; Sibata, C. H.

    2008-12-15

    A ring-shaped Fricke device was developed to measure the absolute dose on the transverse bisector of a {sup 192}Ir high dose rate (HDR) source at 1 cm from its center in water, D(r{sub 0},{theta}{sub 0}). It consists of a polymethylmethacrylate (PMMA) rod (axial axis) with a cylindrical cavity at its center to insert the {sup 192}Ir radioactive source. A ring cavity around the source with 1.5 mm thickness and 5 mm height is centered at 1 cm from the central axis of the source. This ring cavity is etched in a disk shaped base with 2.65 cm diameter and 0.90 cm thickness. The cavity has a wall around it 0.25 cm thick. This ring is filled with Fricke solution, sealed, and the whole assembly is immersed in water during irradiations. The device takes advantage of the cylindrical geometry to measure D(r{sub 0},{theta}{sub 0}). Irradiations were performed with a Nucletron microselectron HDR unit loaded with an {sup 192}Ir Alpha Omega radioactive source. A Spectronic 1001 spectrophotometer was used to measure the optical absorbance using a 1 mL quartz cuvette with 1.00 cm light pathlength. The PENELOPE Monte Carlo code (MC) was utilized to simulate the Fricke device and the {sup 192}Ir Alpha Omega source in detail to calculate the perturbation introduced by the PMMA material. A NIST traceable calibrated well type ionization chamber was used to determine the air-kerma strength, and a published dose-rate constant was used to determine the dose rate at the reference point. The time to deliver 30.00 Gy to the reference point was calculated. This absorbed dose was then compared to the absorbed dose measured by the Fricke solution. Based on MC simulation, the PMMA of the Fricke device increases the D(r{sub 0},{theta}{sub 0}) by 2.0%. Applying the corresponding correction factor, the D(r{sub 0},{theta}{sub 0}) value assessed with the Fricke device agrees within 2.0% with the expected value with a total combined uncertainty of 3.43%(k=1). The Fricke device provides a promising

  11. Reference Materials

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Reference Materials Reference Materials Large Scale Computing and Storage Requirements for Biological and Environmental Research May 7-8, 2009 Invitation Workshop Invitation Letter...

  12. Reference Materials

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Reference Materials Reference Materials Large Scale Computing and Storage Requirements for Basic Energy Sciences February 9-10, 2010 Official DOE Invitation Workshop Invitation...

  13. Reference Materials

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Reference Materials Reference Materials Large Scale Computing and Storage Requirements for Basic Energy Sciences February 9-10, 2010 Official DOE Invitation Workshop Invitation Letter from DOE Associate Directors Last edited: 2016-04-29 11:35:05

  14. Application of the hybrid approach to the benchmark dose of urinary cadmium as the reference level for renal effects in cadmium polluted and non-polluted areas in Japan

    SciTech Connect

    Suwazono, Yasushi; Nogawa, Kazuhiro; Uetani, Mirei; Nakada, Satoru; Kido, Teruhiko; Nakagawa, Hideaki

    2011-02-15

    Objectives: The aim of this study was to evaluate the reference level of urinary cadmium (Cd) that caused renal effects. An updated hybrid approach was used to estimate the benchmark doses (BMDs) and their 95% lower confidence limits (BMDL) in subjects with a wide range of exposure to Cd. Methods: The total number of subjects was 1509 (650 men and 859 women) in non-polluted areas and 3103 (1397 men and 1706 women) in the environmentally exposed Kakehashi river basin. We measured urinary cadmium (U-Cd) as a marker of long-term exposure, and {beta}2-microglobulin ({beta}2-MG) as a marker of renal effects. The BMD and BMDL that corresponded to an additional risk (BMR) of 5% were calculated with background risk at zero exposure set at 5%. Results: The U-Cd BMDL for {beta}2-MG was 3.5 {mu}g/g creatinine in men and 3.7 {mu}g/g creatinine in women. Conclusions: The BMDL values for a wide range of U-Cd were generally within the range of values measured in non-polluted areas in Japan. This indicated that the hybrid approach is a robust method for different ranges of cadmium exposure. The present results may contribute further to recent discussions on health risk assessment of Cd exposure.

  15. Reference Materials

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Reference Materials (continued) * Generators are required to avoid Las Vegas metropolitan area and Hoover Dam (Section 6.4 of NNSS Waste Acceptance Criteria, available at ...

  16. Reference Materials

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Reference Materials Reference Materials Large Scale Computing and Storage Requirements for Advanced Scientific Computing Research January 5-6, 2011 Official DOE Invitation Workshop Invitation Letter from DOE Associate Directors NERSC Documents NERSC science requirements home page NERSC science requirements workshop page NERSC science requirements case study FAQ Previous NERSC Requirements Workshops Biological and Environmental Research (BER) Basic Energy Sciences (BES) Fusion Energy Sciences

  17. Reference Materials

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Reference Materials Reference Materials Large Scale Computing and Storage Requirements for Biological and Environmental Research May 7-8, 2009 Invitation Workshop Invitation Letter from DOE Associate Directors Workshop Invitation Letter from DOE ASCR Program Manager Yukiko Sekine Last edited: 2016-04-29 11:34:54

  18. Quick Reference

    Energy.gov [DOE] (indexed site)

    Reference 2015 Annual Planning Summary (APS) User's Guide 1, 2 PART 1 OFFICE Enter the office preparing this APS. NEPA REVIEWS Select one of two responses. SITE-WIDE EISs Select...

  19. Reference Materials

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Reference Materials Reference Materials Large Scale Computing and Storage Requirements for Fusion Energy Sciences August 3-4, 2010 Official DOE Invitation Workshop Invitation Letter from DOE Associate Directors [not available] NERSC Documents NERSC science requirements home page NERSC science requirements workshop page NERSC science requirements case study FAQ Workshop Agenda Previous NERSC Requirements Workshops Biological and Environmental Research (BER) Basic Energy Sciences (BES) Fusion

  20. Reference Materials

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Reference Materials Reference Materials Large Scale Computing and Storage Requirements for High Energy Physics November 12-13, 2009 Official DOE Invitation Workshop Invitation Letter from DOE Associate Directors NERSC Documents NERSC science requirements home page NERSC science requirements workshop page NERSC science requirements case study FAQ Workshop Agenda Previous NERSC Requirements Workshops Biological and Environmental Research (BER) Basic Energy Sciences (BES) Fusion Energy Sciences

  1. Poroelastic references

    DOE Data Explorer

    Christina Morency

    This file contains a list of relevant references on the Biot theory (forward and inverse approaches), the double-porosity and dual-permeability theory, and seismic wave propagation in fracture porous media, in RIS format, to approach seismic monitoring in a complex fractured porous medium such as Brady?s Geothermal Field.

  2. Poroelastic references

    SciTech Connect

    Morency, Christina

    2014-12-12

    This file contains a list of relevant references on the Biot theory (forward and inverse approaches), the double-porosity and dual-permeability theory, and seismic wave propagation in fracture porous media, in RIS format, to approach seismic monitoring in a complex fractured porous medium such as Brady?s Geothermal Field.

  3. ORISE: Dose Coefficients for Intakes of Radionuclides via Contaminated...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    the dose coefficients to generate derived reference guides and clinical decision guides. ... These dose coefficients can be used to generate derived regulatory guidance, that is, the ...

  4. Dose Limits

    Office of Energy Efficiency and Renewable Energy (EERE)

    Dose Limits ERAD (Question Posted to ERAD in May 2012) Who do you define as a member of the public for the onsite MEI? This question implies that there may be more than one maximally exposed individual (MEI), one on-site and one off-site, when demonstrating compliance with the Public Dose Limit of DOE Order 458.1. Although all potential MEIs should be considered and documented, as well as the calculated doses and pathways considered, the intent of DOE Order 458.1 is in fact to ultimately identify only one MEI, a theoretical individual who could be either on-site or off-site.

  5. Reference Documents | National Nuclear Security Administration...

    National Nuclear Security Administration (NNSA)

    Reference Documents Summary References Main Draft SEIS References Additional SEIS References Appendix C References Appendix D References Appendix E References Appendix F References ...

  6. High frequency reference electrode

    DOEpatents

    Kronberg, James W.

    1994-01-01

    A high frequency reference electrode for electrochemical experiments comprises a mercury-calomel or silver-silver chloride reference electrode with a layer of platinum around it and a layer of a chemically and electrically resistant material such as TEFLON around the platinum covering all but a small ring or "halo" at the tip of the reference electrode, adjacent to the active portion of the reference electrode. The voltage output of the platinum layer, which serves as a redox electrode, and that of the reference electrode are coupled by a capacitor or a set of capacitors and the coupled output transmitted to a standard laboratory potentiostat. The platinum may be applied by thermal decomposition to the surface of the reference electrode. The electrode provides superior high-frequency response over conventional electrodes.

  7. High frequency reference electrode

    DOEpatents

    Kronberg, J.W.

    1994-05-31

    A high frequency reference electrode for electrochemical experiments comprises a mercury-calomel or silver-silver chloride reference electrode with a layer of platinum around it and a layer of a chemically and electrically resistant material such as TEFLON around the platinum covering all but a small ring or halo' at the tip of the reference electrode, adjacent to the active portion of the reference electrode. The voltage output of the platinum layer, which serves as a redox electrode, and that of the reference electrode are coupled by a capacitor or a set of capacitors and the coupled output transmitted to a standard laboratory potentiostat. The platinum may be applied by thermal decomposition to the surface of the reference electrode. The electrode provides superior high-frequency response over conventional electrodes. 4 figs.

  8. Optical voltage reference

    DOEpatents

    Rankin, R.; Kotter, D.

    1994-04-26

    An optical voltage reference for providing an alternative to a battery source is described. The optical reference apparatus provides a temperature stable, high precision, isolated voltage reference through the use of optical isolation techniques to eliminate current and impedance coupling errors. Pulse rate frequency modulation is employed to eliminate errors in the optical transmission link while phase-lock feedback is employed to stabilize the frequency to voltage transfer function. 2 figures.

  9. Optical voltage reference

    DOEpatents

    Rankin, Richard; Kotter, Dale

    1994-01-01

    An optical voltage reference for providing an alternative to a battery source. The optical reference apparatus provides a temperature stable, high precision, isolated voltage reference through the use of optical isolation techniques to eliminate current and impedance coupling errors. Pulse rate frequency modulation is employed to eliminate errors in the optical transmission link while phase-lock feedback is employed to stabilize the frequency to voltage transfer function.

  10. Appendix A: Reference case

    Annual Energy Outlook

    Reference case Energy Information Administration Annual Energy Outlook 2014 Table A17. Renewable energy consumption by sector and source (quadrillion Btu) Sector and source...

  11. Appendix A: Reference case

    Annual Energy Outlook

    4 Reference case Table A2. Energy consumption by sector and source (quadrillion Btu per year, unless otherwise noted) Energy Information Administration Annual Energy Outlook 2014...

  12. EFRC Management Reference Document

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    EFRC management reference document Energy Frontier Research Centers Acknowledgments of Support (v.1, October 2009) Office of Basic Energy Sciences Office of Science US Department ...

  13. Uranium reference materials

    SciTech Connect

    Donivan, S.; Chessmore, R.

    1987-07-01

    The Technical Measurements Center has prepared uranium mill tailings reference materials for use by remedial action contractors and cognizant federal and state agencies. Four materials were prepared with varying concentrations of radionuclides, using three tailings materials and a river-bottom soil diluent. All materials were ground, dried, and blended thoroughly to ensure homogeneity. The analyses on which the recommended values for nuclides in the reference materials are based were performed, using independent methods, by the UNC Geotech (UNC) Chemistry Laboratory, Grand Junction, Colorado, and by C.W. Sill (Sill), Idaho National Engineering Laboratory, Idaho Falls, Idaho. Several statistical tests were performed on the analytical data to characterize the reference materials. Results of these tests reveal that the four reference materials are homogeneous and that no large systematic bias exists between the analytical methods used by Sill and those used by TMC. The average values for radionuclides of the two data sets, representing an unbiased estimate, were used as the recommended values for concentrations of nuclides in the reference materials. The recommended concentrations of radionuclides in the four reference materials are provided. Use of these reference materials will aid in providing uniform standardization among measurements made by remedial action contractors. 11 refs., 9 tabs.

  14. Sandia Energy - Reference Model Documents

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Documents Home Stationary Power Energy Conversion Efficiency Water Power Reference Model Project (RMP) Reference Model Documents Reference Model DocumentsTara Camacho-Lopez2015-05-...

  15. reference | OpenEI Community

    OpenEI (Open Energy Information) [EERE & EIA]

    reference Home Jweers's picture Submitted by Jweers(88) Contributor 7 August, 2013 - 18:23 New Robust References citation citing developer formatting reference Semantic Mediawiki...

  16. Multifunctional reference electrode (Patent) | DOEPatents

    Office of Scientific and Technical Information (OSTI)

    Multifunctional reference electrode Title: Multifunctional reference electrode A multifunctional, low mass reference electrode of a nickel tube, thermocouple means inside the ...

  17. REFERENCES Baines, W. D.

    Office of Scientific and Technical Information (OSTI)

    REFERENCES Baines, W. D. aud Peterson, E. G., 1951, "An Investigation of Flow Through ... D 50.8 m. A flow facility has been constructed for experiments with these screens. Air ...

  18. Value of Information References

    DOE Data Explorer

    Morency, Christina

    This file contains a list of relevant references on value of information (VOI) in RIS format. VOI provides a quantitative analysis to evaluate the outcome of the combined technologies (seismology, hydrology, geodesy) used to monitor Brady's Geothermal Field.

  19. Value of Information References

    DOE Data Explorer

    Morency, Christina

    2014-12-12

    This file contains a list of relevant references on value of information (VOI) in RIS format. VOI provides a quantitative analysis to evaluate the outcome of the combined technologies (seismology, hydrology, geodesy) used to monitor Brady's Geothermal Field.

  20. Precision displacement reference system

    DOEpatents

    Bieg, Lothar F.; Dubois, Robert R.; Strother, Jerry D.

    2000-02-22

    A precision displacement reference system is described, which enables real time accountability over the applied displacement feedback system to precision machine tools, positioning mechanisms, motion devices, and related operations. As independent measurements of tool location is taken by a displacement feedback system, a rotating reference disk compares feedback counts with performed motion. These measurements are compared to characterize and analyze real time mechanical and control performance during operation.

  1. Membrane reference electrode

    DOEpatents

    Redey, Laszlo; Bloom, Ira D.

    1989-01-01

    A reference electrode utilizes a small thin, flat membrane of a highly conductive glass placed on a small diameter insulator tube having a reference material inside in contact with an internal voltage lead. When the sensor is placed in a non-aqueous ionic electrolytic solution, the concentration difference across the glass membrane generates a low voltage signal in precise relationship to the concentration of the species to be measured with high spatial resolution.

  2. Membrane reference electrode

    DOEpatents

    Redey, L.; Bloom, I.D.

    1988-01-21

    A reference electrode utilizes a small thin, flat membrane of a highly conductive glass placed on a small diameter insulator tube having a reference material inside in contact with an internal voltage lead. When the sensor is placed in a non-aqueous ionic electrolytic solution, the concentration difference across the glass membrane generates a low voltage signal in precise relationship to the concentration of the species to be measured, with high spatial resolution. 2 figs.

  3. The NEPA reference guide

    SciTech Connect

    Swartz, L.L.; Reinke, D.C.

    1999-10-01

    The NEPA Reference Guide conveniently organizes and indexes National Environmental Policy Act (NEPA) and Council on Environmental Quality (CEQ) regulations and guidance, along with relevant federal case law, all in one place. It allows the user to quickly learn the statutory, regulatory, and case law authority for a large number of NEPA subjects. A unique feature of The NEPA Reference Guide is its detailed index that includes a large number of diverse NEPA subjects. The index enables users to find and compile any statutory, regulatory (including CEQ guidance), and case law original source material and references on virtually any NEPA subject. This will be an especially useful tool for new NEPA practitioners who need to become immersed in a particular subject quickly.

  4. Multifunctional reference electrode

    DOEpatents

    Redey, Laszlo; Vissers, Donald R.

    1983-01-01

    A multifunctional, low mass reference electrode of a nickel tube, thermocouple means inside the nickel tube electrically insulated therefrom for measuring the temperature thereof, a housing surrounding the nickel tube, an electrolyte having a fixed sulfide ion activity between the housing and the outer surface of the nickel tube forming the nickel/nickel sulfide/sulfide half-cell. An ion diffusion barrier is associated with the housing in contact with the electrolyte. Also disclosed is a cell using the reference electrode to measure characteristics of a working electrode.

  5. Aluminum reference electrode

    DOEpatents

    Sadoway, D.R.

    1988-08-16

    A stable reference electrode is described for use in monitoring and controlling the process of electrolytic reduction of a metal. In the case of Hall cell reduction of aluminum, the reference electrode comprises a pool of molten aluminum and a solution of molten cryolite, Na[sub 3]AlF[sub 6], wherein the electrical connection to the molten aluminum does not contact the highly corrosive molten salt solution. This is accomplished by altering the density of either the aluminum (decreasing the density) or the electrolyte (increasing the density) so that the aluminum floats on top of the molten salt solution. 1 fig.

  6. Aluminum reference electrode

    DOEpatents

    Sadoway, Donald R.

    1988-01-01

    A stable reference electrode for use in monitoring and controlling the process of electrolytic reduction of a metal. In the case of Hall cell reduction of aluminum, the reference electrode comprises a pool of molten aluminum and a solution of molten cryolite, Na.sub.3 AlF.sub.6, wherein the electrical connection to the molten aluminum does not contact the highly corrosive molten salt solution. This is accomplished by altering the density of either the aluminum (decreasing the density) or the electrolyte (increasing the density) so that the aluminum floats on top of the molten salt solution.

  7. Multifunctional reference electrode

    DOEpatents

    Redey, L.; Vissers, D.R.

    1981-12-30

    A multifunctional, low mass reference electrode of a nickel tube, thermocouple means inside the nickel tube electrically insulated therefrom for measuring the temperature thereof, a housing surrounding the nickel tube, an electrolyte having a fixed sulfide ion activity between the housing and the outer surface of the nickel tube forming the nickel/nickel sulfide/sulfide half-cell are described. An ion diffusion barrier is associated with the housing in contact with the electrolyte. Also disclosed is a cell using the reference electrode to measure characteristics of a working electrode.

  8. Reference Model Development

    SciTech Connect

    Jepsen, Richard

    2011-11-02

    Presentation from the 2011 Water Peer Review in which principal investigator discusses project progress to develop a representative set of Reference Models (RM) for the MHK industry to develop baseline cost of energy (COE) and evaluate key cost component/system reduction pathways.

  9. Extended range radiation dose-rate monitor

    DOEpatents

    Valentine, Kenneth H.

    1988-01-01

    An extended range dose-rate monitor is provided which utilizes the pulse pileup phenomenon that occurs in conventional counting systems to alter the dynamic response of the system to extend the dose-rate counting range. The current pulses from a solid-state detector generated by radiation events are amplified and shaped prior to applying the pulses to the input of a comparator. The comparator generates one logic pulse for each input pulse which exceeds the comparator reference threshold. These pulses are integrated and applied to a meter calibrated to indicate the measured dose-rate in response to the integrator output. A portion of the output signal from the integrator is fed back to vary the comparator reference threshold in proportion to the output count rate to extend the sensitive dynamic detection range by delaying the asymptotic approach of the integrator output toward full scale as measured by the meter.

  10. Enjebi Island dose assessment

    SciTech Connect

    Robison, W.L.; Conrado, C.L.; Phillips, W.A.

    1987-07-01

    We have updeated the radiological dose assessment for Enjebi Island at Enewetak Atoll using data derived from analysis of food crops grown on Enjebi. This is a much more precise assessment of potential doses to people resettling Enjebi Island than the 1980 assessment in which there were no data available from food crops on Enjebi. Details of the methods and data used to evaluate each exposure pathway are presented. The terrestrial food chain is the most significant potential exposure pathway and /sup 137/Cs is the radionuclide responsible for most of the estimated dose over the next 50 y. The doses are calculated assuming a resettlement date of 1990. The average wholebody maximum annual estimated dose equivalent derived using our diet model is 166 mremy;the effective dose equivalent is 169 mremy. The estimated 30-, 50-, and 70-y integral whole-body dose equivalents are 3.5 rem, 5.1 rem, and 6.2 rem, respectively. Bone-marrow dose equivalents are only slightly higher than the whole-body estimates in each case. The bone-surface cells (endosteal cells) receive the highest dose, but they are a less sensitive cell population and are less sensitive to fatal cancer induction than whole body and bone marrow. The effective dose equivalents for 30, 50, and 70 y are 3.6 rem, 5.3 rem, and 6.6 rem, respectively. 79 refs., 17 figs., 24 tabs

  11. OSH technical reference manual

    SciTech Connect

    Not Available

    1993-11-01

    In an evaluation of the Department of Energy (DOE) Occupational Safety and Health programs for government-owned contractor-operated (GOCO) activities, the Department of Labor`s Occupational Safety and Health Administration (OSHA) recommended a technical information exchange program. The intent was to share written safety and health programs, plans, training manuals, and materials within the entire DOE community. The OSH Technical Reference (OTR) helps support the secretary`s response to the OSHA finding by providing a one-stop resource and referral for technical information that relates to safe operations and practice. It also serves as a technical information exchange tool to reference DOE-wide materials pertinent to specific safety topics and, with some modification, as a training aid. The OTR bridges the gap between general safety documents and very specific requirements documents. It is tailored to the DOE community and incorporates DOE field experience.

  12. Alignment reference device

    DOEpatents

    Patton, Gail Y.; Torgerson, Darrel D.

    1987-01-01

    An alignment reference device provides a collimated laser beam that minimizes angular deviations therein. A laser beam source outputs the beam into a single mode optical fiber. The output end of the optical fiber acts as a source of radiant energy and is positioned at the focal point of a lens system where the focal point is positioned within the lens. The output beam reflects off a mirror back to the lens that produces a collimated beam.

  13. Chapter 6 - References

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    6-1 CHAPTER 6 REFERENCES BLS (Bureau of Labor Statistics), 2002. Bureau of Labor Statistics Data, <http://www.bls.gov/data>, accessed January 25. CAIRS (Computerized Accident/Incident Reporting System), 2002. Statistics, <http://www.eh.doe.gov/cairs/stats.html>, accessed January 30. CEMRC (Carlsbad Environmental Monitoring & Research Center), 2000. Actinide Chemistry and Repository Science Laboratory Initiative, New Mexico State University, Carlsbad, New Mexico, December 15. CEQ

  14. Neutron dose equivalent meter

    DOEpatents

    Olsher, Richard H.; Hsu, Hsiao-Hua; Casson, William H.; Vasilik, Dennis G.; Kleck, Jeffrey H.; Beverding, Anthony

    1996-01-01

    A neutron dose equivalent detector for measuring neutron dose capable of accurately responding to neutron energies according to published fluence to dose curves. The neutron dose equivalent meter has an inner sphere of polyethylene, with a middle shell overlying the inner sphere, the middle shell comprising RTV.RTM. silicone (organosiloxane) loaded with boron. An outer shell overlies the middle shell and comprises polyethylene loaded with tungsten. The neutron dose equivalent meter defines a channel through the outer shell, the middle shell, and the inner sphere for accepting a neutron counter tube. The outer shell is loaded with tungsten to provide neutron generation, increasing the neutron dose equivalent meter's response sensitivity above 8 MeV.

  15. Technology, safety and costs of decommissioning a reference boiling water reactor power station. Appendices. Volume 2

    SciTech Connect

    Oak, H.D.; Holter, G.M.; Kennedy, W.E. Jr.; Konzek, G.J.

    1980-06-01

    Appendices are presented concerning the evaluations of decommissioning financing alternatives; reference site description; reference BWR facility description; radiation dose rate and concrete surface contamination data; radionuclide inventories; public radiation dose models and calculated maximum annual doses; decommissioning methods; generic decommissioning information; immediate dismantlement details; passive safe storage, continuing care, and deferred dismantlement details; entombment details; demolition and site restoration details; cost estimating bases; public radiological safety assessment details; and details of alternate study bases.

  16. Derivation of dose conversion factors for tritium

    SciTech Connect

    Killough, G. G.

    1982-03-01

    For a given intake mode (ingestion, inhalation, absorption through the skin), a dose conversion factor (DCF) is the committed dose equivalent to a specified organ of an individual per unit intake of a radionuclide. One also may consider the effective dose commitment per unit intake, which is a weighted average of organ-specific DCFs, with weights proportional to risks associated with stochastic radiation-induced fatal health effects, as defined by Publication 26 of the International Commission on Radiological Protection (ICRP). This report derives and tabulates organ-specific dose conversion factors and the effective dose commitment per unit intake of tritium. These factors are based on a steady-state model of hydrogen in the tissues of ICRP's Reference Man (ICRP Publication 23) and equilibrium of specific activities between body water and other tissues. The results differ by 27 to 33% from the estimate on which ICRP Publication 30 recommendations are based. The report also examines a dynamic model of tritium retention in body water, mineral bone, and two compartments representing organically-bound hydrogen. This model is compared with data from human subjects who were observed for extended periods. The manner of combining the dose conversion factors with measured or model-predicted levels of contamination in man's exposure media (air, drinking water, soil moisture) to estimate dose rate to an individual is briefly discussed.

  17. Coal Data: A reference

    SciTech Connect

    Not Available

    1991-11-26

    The purpose of Coal Data: A Reference is to provide basic information on the mining and use of coal, an important source of energy in the United States. The report is written for a general audience. The goal is to cover basic material and strike a reasonable compromise between overly generalized statements and detailed analyses. The section ``Coal Terminology and Related Information`` provides additional information about terms mentioned in the text and introduces new terms. Topics covered are US coal deposits, resources and reserves, mining, production, employment and productivity, health and safety, preparation, transportation, supply and stocks, use, coal, the environment, and more. (VC)

  18. Coal data: A reference

    SciTech Connect

    Not Available

    1995-02-01

    This report, Coal Data: A Reference, summarizes basic information on the mining and use of coal, an important source of energy in the US. This report is written for a general audience. The goal is to cover basic material and strike a reasonable compromise between overly generalized statements and detailed analyses. The section ``Supplemental Figures and Tables`` contains statistics, graphs, maps, and other illustrations that show trends, patterns, geographic locations, and similar coal-related information. The section ``Coal Terminology and Related Information`` provides additional information about terms mentioned in the text and introduces some new terms. The last edition of Coal Data: A Reference was published in 1991. The present edition contains updated data as well as expanded reviews and additional information. Added to the text are discussions of coal quality, coal prices, unions, and strikes. The appendix has been expanded to provide statistics on a variety of additional topics, such as: trends in coal production and royalties from Federal and Indian coal leases, hours worked and earnings for coal mine employment, railroad coal shipments and revenues, waterborne coal traffic, coal export loading terminals, utility coal combustion byproducts, and trace elements in coal. The information in this report has been gleaned mainly from the sources in the bibliography. The reader interested in going beyond the scope of this report should consult these sources. The statistics are largely from reports published by the Energy Information Administration.

  19. Antares Reference Telescope System

    SciTech Connect

    Viswanathan, V.K.; Kaprelian, E.; Swann, T.; Parker, J.; Wolfe, P.; Woodfin, G.; Knight, D.

    1983-01-01

    Antares is a 24-beam, 40-TW carbon-dioxide laser-fusion system currently nearing completion at the Los Alamos National Laboratory. The 24 beams will be focused onto a tiny target (typically 300 to 1000 ..mu..m in diameter) located approximately at the center of a 7.3-m-diameter by 9.3-m-long vacuum (10/sup -6/ torr) chamber. The design goal is to position the targets to within 10 ..mu..m of a selected nominal position, which may be anywhere within a fixed spherical region 1 cm in diameter. The Antares Reference Telescope System is intended to help achieve this goal for alignment and viewing of the various targets used in the laser system. The Antares Reference Telescope System consists of two similar electro-optical systems positioned in a near orthogonal manner in the target chamber area of the laser. Each of these consists of four subsystems: (1) a fixed 9X optical imaging subsystem which produces an image of the target at the vidicon; (2) a reticle projection subsystem which superimposes an image of the reticle pattern at the vidicon; (3) an adjustable front-lighting subsystem which illuminates the target; and (4) an adjustable back-lighting subsystem which also can be used to illuminate the target. The various optical, mechanical, and vidicon design considerations and trade-offs are discussed. The final system chosen (which is being built) and its current status are described in detail.

  20. STEP Intern Reference Check Sheet

    Energy.gov [DOE]

    STEP Intern Reference Check Sheet, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  1. Nuclear Science References Database

    SciTech Connect

    Pritychenko, B.; Běták, E.; Singh, B.; Totans, J.

    2014-06-15

    The Nuclear Science References (NSR) database together with its associated Web interface, is the world's only comprehensive source of easily accessible low- and intermediate-energy nuclear physics bibliographic information for more than 210,000 articles since the beginning of nuclear science. The weekly-updated NSR database provides essential support for nuclear data evaluation, compilation and research activities. The principles of the database and Web application development and maintenance are described. Examples of nuclear structure, reaction and decay applications are specifically included. The complete NSR database is freely available at the websites of the National Nuclear Data Center (http://www.nndc.bnl.gov/nsr) and the International Atomic Energy Agency (http://www-nds.iaea.org/nsr)

  2. Long life reference electrode

    DOEpatents

    Yonco, Robert M.; Nagy, Zoltan

    1989-01-01

    An external, reference electrode is provided for long term use with a high temperature, high pressure system. The electrode is arranged in a vertical, electrically insulative tube with an upper portion serving as an electrolyte reservior and a lower portion in electrolytic communication with the system to be monitored. The lower end portion includes a flow restriction such as a porous plug to limit the electrolyte release into the system. A piston equalized to the system pressure is fitted into the upper portion of the tube to impart a small incremental pressure to the electrolyte. The piston is selected of suitable size and weight to cause only a slight flow of electrolyte through the porous plug into the high pressure system. This prevents contamination of the electrolyte but is of such small flow rate that operating intervals of a month or more can be achieved.

  3. Long life reference electrode

    DOEpatents

    Yonco, R.M.; Nagy, Z.

    1989-04-04

    An external, reference electrode is provided for long term use with a high temperature, high pressure system. The electrode is arranged in a vertical, electrically insulative tube with an upper portion serving as an electrolyte reservoir and a lower portion in electrolytic communication with the system to be monitored. The lower end portion includes a flow restriction such as a porous plug to limit the electrolyte release into the system. A piston equalized to the system pressure is fitted into the upper portion of the tube to impart a small incremental pressure to the electrolyte. The piston is selected of suitable size and weight to cause only a slight flow of electrolyte through the porous plug into the high pressure system. This prevents contamination of the electrolyte but is of such small flow rate that operating intervals of a month or more can be achieved. 2 figs.

  4. Long life reference electrode

    DOEpatents

    Yonco, R.M.; Nagy, Z.

    1987-07-30

    An external, reference electrode is provided for long term use with a high temperature, high pressure system. The electrode is arranged in a vertical, electrically insulative tube with an upper portion serving as an electrolyte reservoir and a lower portion in electrolytic communication with the system to be monitored. The lower end portion includes a flow restriction such as a porous plug to limit the electrolyte release into the system. A piston equalized to the system pressure is fitted into the upper portion of the tube to impart a small incremental pressure to the electrolyte. The piston is selected of suitable size and weight to cause only a slight flow of electrolyte through the porous plug into the high pressure system. This prevents contamination of the electrolyte but is of such small flow rate that operating intervals of a month or more can be achieved. 2 figs.

  5. On effective dose for radiotherapy based on doses to nontarget organs and tissues

    SciTech Connect

    Uselmann, Adam J. Thomadsen, Bruce R.

    2015-02-15

    Purpose: The National Council for Radiation Protection and Measurement (NCRP) published estimates for the collective population dose and the mean effective dose to the population of the United States from medical imaging procedures for 1980/1982 and for 2006. The earlier report ignored the effective dose from radiotherapy and the latter gave a cursory discussion of the topic but again did not include it in the population exposure for various reasons. This paper explains the methodology used to calculate the effective dose in due to radiotherapy procedures in the latter NCRP report and revises the values based on more detailed modeling. Methods: This study calculated the dose to nontarget organs from radiotherapy for reference populations using CT images and published peripheral dose data. Results: Using International Commission on Radiological Protection (ICRP) 60 weighting factors, the total effective dose to nontarget organs in radiotherapy patients is estimated as 298 ± 194 mSv per patient, while the U.S. population effective dose is 0.939 ± 0.610 mSv per person, with a collective dose of 283 000 ± 184 000 person Sv per year. Using ICRP 103 weighting factors, the effective dose is 281 ± 183 mSv per patient, 0.887 ± 0.577 mSv per person in the U.S., and 268 000 ± 174 000 person Sv per year. The uncertainty in the calculations is largely governed by variations in patient size, which was accounted for by considering a range of patient sizes and taking the average treatment site to nontarget organ distance. Conclusions: The methods used to estimate the effective doses from radiotherapy used in NCRP Report No. 160 have been explained and the values updated.

  6. Sensor Characteristics Reference Guide

    SciTech Connect

    Cree, Johnathan V.; Dansu, A.; Fuhr, P.; Lanzisera, Steven M.; McIntyre, T.; Muehleisen, Ralph T.; Starke, M.; Banerjee, Pranab; Kuruganti, T.; Castello, C.

    2013-04-01

    The Buildings Technologies Office (BTO), within the U.S. Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy (EERE), is initiating a new program in Sensor and Controls. The vision of this program is: • Buildings operating automatically and continuously at peak energy efficiency over their lifetimes and interoperating effectively with the electric power grid. • Buildings that are self-configuring, self-commissioning, self-learning, self-diagnosing, self-healing, and self-transacting to enable continuous peak performance. • Lower overall building operating costs and higher asset valuation. The overarching goal is to capture 30% energy savings by enhanced management of energy consuming assets and systems through development of cost-effective sensors and controls. One step in achieving this vision is the publication of this Sensor Characteristics Reference Guide. The purpose of the guide is to inform building owners and operators of the current status, capabilities, and limitations of sensor technologies. It is hoped that this guide will aid in the design and procurement process and result in successful implementation of building sensor and control systems. DOE will also use this guide to identify research priorities, develop future specifications for potential market adoption, and provide market clarity through unbiased information

  7. Capillary reference half-cell

    DOEpatents

    Hall, S.H.

    1996-02-13

    The present invention is a reference half-cell electrode wherein intermingling of test fluid with reference fluid does not affect the performance of the reference half-cell over a long time. This intermingling reference half-cell may be used as a single or double junction submersible or surface reference electrode. The intermingling reference half-cell relies on a capillary tube having a first end open to reference fluid and a second end open to test fluid wherein the small diameter of the capillary tube limits free motion of fluid within the capillary to diffusion. The electrode is placed near the first end of the capillary in contact with the reference fluid. The method of operation of the present invention begins with filling the capillary tube with a reference solution. After closing the first end of the capillary, the capillary tube may be fully submerged or partially submerged with the second open end inserted into test fluid. Since the electrode is placed near the first end of the capillary, and since the test fluid may intermingle with the reference fluid through the second open end only by diffusion, this intermingling capillary reference half-cell provides a stable voltage potential for long time periods. 11 figs.

  8. Capillary reference half-cell

    DOEpatents

    Hall, Stephen H.

    1996-01-01

    The present invention is a reference half-cell electrode wherein intermingling of test fluid with reference fluid does not affect the performance of the reference half-cell over a long time. This intermingling reference half-cell may be used as a single or double junction submersible or surface reference electrode. The intermingling reference half-cell relies on a capillary tube having a first end open to reference fluid and a second end open to test fluid wherein the small diameter of the capillary tube limits free motion of fluid within the capillary to diffusion. The electrode is placed near the first end of the capillary in contact with the reference fluid. The method of operation of the present invention begins with filling the capillary tube with a reference solution. After closing the first end of the capillary, the capillary tube may be fully submerged or partially submerged with the second open end inserted into test fluid. Since the electrode is placed near the first end of the capillary, and since the test fluid may intermingle with the reference fluid through the second open end only by diffusion, this intermingling capillary reference half-cell provides a stable voltage potential for long time periods.

  9. Dose Reduction Techniques

    SciTech Connect

    WAGGONER, L.O.

    2000-05-16

    As radiation safety specialists, one of the things we are required to do is evaluate tools, equipment, materials and work practices and decide whether the use of these products or work practices will reduce radiation dose or risk to the environment. There is a tendency for many workers that work with radioactive material to accomplish radiological work the same way they have always done it rather than look for new technology or change their work practices. New technology is being developed all the time that can make radiological work easier and result in less radiation dose to the worker or reduce the possibility that contamination will be spread to the environment. As we discuss the various tools and techniques that reduce radiation dose, keep in mind that the radiological controls should be reasonable. We can not always get the dose to zero, so we must try to accomplish the work efficiently and cost-effectively. There are times we may have to accept there is only so much you can do. The goal is to do the smart things that protect the worker but do not hinder him while the task is being accomplished. In addition, we should not demand that large amounts of money be spent for equipment that has marginal value in order to save a few millirem. We have broken the handout into sections that should simplify the presentation. Time, distance, shielding, and source reduction are methods used to reduce dose and are covered in Part I on work execution. We then look at operational considerations, radiological design parameters, and discuss the characteristics of personnel who deal with ALARA. This handout should give you an overview of what it takes to have an effective dose reduction program.

  10. Dose Calculation Spreadsheet

    Energy Science and Technology Software Center

    1997-06-10

    VENTSAR XL is an EXCEL Spreadsheet that can be used to calculate downwind doses as a result of a hypothetical atmospheric release. Both building effects and plume rise may be considered. VENTSAR XL will run using any version of Microsoft EXCEL version 4.0 or later. Macros (the programming language of EXCEL) was used to automate the calculations. The user enters a minimal amount of input and the code calculates the resulting concentrations and doses atmore » various downwind distances as specified by the user.« less

  11. LADTAPXL Aqueous Dose Spreadsheet

    Energy Science and Technology Software Center

    1999-08-10

    LADTAPXL is an EXCEL spreadsheet model of the NRC computer code LADTAP. LADTAPXL calculates maximally exposed individual and population doses from chronic liquid releases. Environmental pathways include external exposure resulting from recreational activities on the Savannah River and ingestion of water, fish, and invertebrates of Savannah River origin.

  12. Optical probe with reference fiber

    DOEpatents

    Da Silva, Luiz B.; Chase, Charles L.

    2006-03-14

    A system for characterizing tissue includes the steps of generating an emission signal, generating a reference signal, directing the emission signal to and from the tissue, directing the reference signal in a predetermined manner relative to the emission signal, and using the reference signal to compensate the emission signal. In one embodiment compensation is provided for fluctuations in light delivery to the tip of the probe due to cable motion.

  13. Wesley Dose | Argonne National Laboratory

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Wesley Dose Postdoctoral Appointee Telephone (630) 252-6884 E-mail wdose@anl.gov

  14. FAQS Reference Guide- Chemical Processing

    Office of Energy Efficiency and Renewable Energy (EERE)

    This reference guide addresses the competency statements in the February 2010 edition of DOE-STD-1176-2010, Chemical Processing Functional Area Qualification Standard.

  15. Desk Reference | Department of Energy

    Office of Environmental Management (EM)

    servicing personnel office and financial management staffs and time and attendance clerks ... DOE Handbook on Recruitment and Retention Incentives This desk reference contains ...

  16. FAQS Reference Guide- Aviation Manager

    Energy.gov [DOE]

    This reference guide addresses the competency statements in the January 2010 edition of DOE-STD-1164-2003 Chg 1, Aviation Safety Officer Functional Area Qualification Standard.

  17. Archived Reference Building Type: Warehouse

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  18. Archived Reference Building Type: Supermarket

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  19. Archived Reference Building Type: Hospital

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  20. Archived Reference Building Type: Hospital

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  1. Archived Reference Building Type: Warehouse

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  2. SU-E-P-10: Establishment of Local Diagnostic Reference Levels of Routine Exam in Computed Tomography

    SciTech Connect

    Yeh, M; Wang, Y; Weng, H

    2015-06-15

    Introduction National diagnostic reference levels (NDRLs) can be used as a reference dose of radiological examination can provide radiation dose as the basis of patient dose optimization. Local diagnostic reference levels (LDRLs) by periodically view and check doses, more efficiency to improve the way of examination. Therefore, the important first step is establishing a diagnostic reference level. Computed Tomography in Taiwan had been built up the radiation dose limit value,in addition, many studies report shows that CT scan contributed most of the radiation dose in different medical. Therefore, this study was mainly to let everyone understand DRL’s international status. For computed tomography in our hospital to establish diagnostic reference levels. Methods and Materials: There are two clinical CT scanners (a Toshiba Aquilion and a Siemens Sensation) were performed in this study. For CT examinations the basic recommended dosimetric quantity is the Computed Tomography Dose Index (CTDI). Each exam each different body part, we collect 10 patients at least. Carried out the routine examinations, and all exposure parameters have been collected and the corresponding CTDIv and DLP values have been determined. Results: The majority of patients (75%) were between 60–70 Kg of body weight. There are 25 examinations in this study. Table 1 shows the LDRL of each CT routine examination. Conclusions: Therefore, this study would like to let everyone know DRL’s international status, but also establishment of computed tomography of the local reference levels for our hospital, and providing radiation reference, as a basis for optimizing patient dose.

  3. Fluence-to-dose confusion regarding external stochastic dose determination within the DOE complex.

    SciTech Connect

    Shores, E. F.; Brown, T. H.

    2002-01-01

    The Department of Energy's (DOE) occupational radiation protection dose limits are specified in 10 CFR 835 (hereafter referred to as 'regulation'). Ambiguity in the regulation regarding designation of dose and fluence-to-dose conversion factors leads to confusion and disagreement regarding the appropriate choice of conversion factors. Three primary dose quantities of relevance are absorbed dose, D, quality factor, Q, and the product of those, called dose equivalent, H. The modifier Q is intended to express the long-term fatal cancer causing potential of different radiation types and generally increases with energy for neutrons. For photons, Q is close to unity regardless of energy. In principle, H could be estimated by incorporating a phantom and relevant Q values in a radiation-transport model. In practice, this would entail too much model complexity and computer time. The evaluator of H instead relies on pre-calculated energy-dependent fluence-to-dose conversion factors. Three primary sets of fluence-to-dose conversion factors are commonly used to determine stochastic dose for neutrons and photons: (1) ANSI/ANS-6.1.1-1977 that incorporates the NCRP-38 data for neutrons and sets based on Claiborne and Wells for photons, (2) ANSI/ANS -6.1.1-1991 that are based on and nearly identical to the neutron and photon sets in ICRP -51, and (3) neutron and photon sets in ICRP-74. The first set is maximum H values in a 30-cm diameter cylinder phantom for neutrons and in a 30-cm thick slab phantom for photons. The second set is effective dose equivalent, HE, derived from an anthropomorphic phantom by summing the products of tissue dose equivalents, HT, and tissue weighting factors, w{sub T}. The third set is effective dose, E, also derived from an anthropomorphic phantom by summing the products of H{sub T} and w{sub T}. E is functionally identical to H{sub E} except H{sub T} is the product of D and the radiation weighting factor, w{sub R}, which is similar in meaning to Q.

  4. Dose Calculation Evolution for Internal Organ Irradiation in Humans

    SciTech Connect

    Jimenez V, Reina A.

    2007-10-26

    The International Commission of Radiation Units (ICRU) has established through the years, a discrimination system regarding the security levels on the prescription and administration of doses in radiation treatments (Radiotherapy, Brach therapy, Nuclear Medicine). The first level is concerned with the prescription and posterior assurance of dose administration to a point of interest (POI), commonly located at the geometrical center of the region to be treated. In this, the effects of radiation around that POI, is not a priority. The second level refers to the dose specifications in a particular plane inside the patient, mostly the middle plane of the lesion. The dose is calculated to all the structures in that plane regardless if they are tumor or healthy tissue. In this case, the dose is not represented by a point value, but by level curves called 'isodoses' as in a topographic map, so you can assure the level of doses to this particular plane, but it also leave with no information about how this values go thru adjacent planes. This is why the third level is referred to the volumetrical description of doses so these isodoses construct now a volume (named 'cloud') that give us better assurance about tissue irradiation around the volume of the lesion and its margin (sub clinical spread or microscopic illness). This work shows how this evolution has resulted, not only in healthy tissue protection improvement but in a rise of tumor control, quality of life, better treatment tolerance and minimum permanent secuelae.

  5. REFERENCES

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    FEDERAL LAWS AND REGULATIONS a. Public Law (P.L.) 93-579, Privacy Act of 1974, as amended Title 5 United States Code (U.S.C.) Section 552a. . b. P.L. 104-106, Division E, Clinger ...

  6. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    I Reference case projections for natural gas production This page inTenTionally lefT blank 121 U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections for natural gas production Table I1. World total natural gas production by region, Reference case, 2012-40 (trillion cubic feet) Region/country Projections Average annual percent change, 2012-40 2012 2020 2025 2030 2035 2040 OECD OECD Americas 31.8 35.7 38.6 42.1 44.6 47.3 1.4 United States a 24.0 28.7

  7. Low Dose Radiation

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    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

  8. Microsoft Word - references.doc

    Office of Legacy Management (LM)

    References May 2005 2004 Site Environmental Report R-1 References Facemire, D. F., S. I. Guttman, D. R. Osborne, and R. H. Sperger, 1990, "Biological and Ecological Site Characterization of the Feed Materials Production Center," FMPC-SUB 018, prepared for Westinghouse Materials Co. of Ohio, Cincinnati, OH. GeoSyntec, 1996, "Impacted Material Placement Plan, On-site Disposal Facility," 20100-PL-007, Revision 3, PCN 2, Prepared for the Fernald Environmental Management Project,

  9. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    G Projections of petroleum and other liquids production in three cases * Reference * High Oil Price * Low Oil Price This page inTenTionally lefT blank 85 U.S. Energy Information Administration | International Energy Outlook 2016 Projections of petroleum and other liquid fuels production in three cases Table G1. World petroleum and other liquids production by region and country, Reference case, 2011-40 (million barrels per day, unless otherwise noted) Region/country History (estimates)

  10. Safeguards and Security Program References

    Directives, Delegations, and Other Requirements [Office of Management (MA)]

    2005-08-26

    The manual establishes definitions for terms related to the Department of Energy Safeguards and Security (S&S) Program and includes lists of references and acronyms/abbreviations applicable to S&S Program directives. Cancels the Safeguards and Security Glossary of Terms, dated 12-18-95. Current Safeguards and Security Program References can also be found at Safeguards and Security Policy Information Resource (http://pir.pnl.gov/)

  11. Hanford Environmental Dose Reconstruction Project

    SciTech Connect

    Cannon, S.D.; Finch, S.M.

    1992-10-01

    The objective of the Hanford Environmental Dose Reconstruction (HEDR) Project is to estimate the radiation doses that individuals and populations could have received from nuclear operations at Hanford since 1944. The independent Technical Steering Panel (TSP) provides technical direction. The project is divided into the following technical tasks. These tasks correspond to the path radionuclides followed from release to impact on humans (dose estimates):Source Terms, Environmental Transport, Environmental Monitoring Data, Demography, Food Consumption, and Agriculture, and Environmental Pathways and Dose Estimates.

  12. ORISE: Dose modeling and assessments

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Dose modeling and assessments The Oak Ridge Institute for Science and Education (ORISE) offers dose modeling and assessment services to demonstrate that federal and/or state regulatory compliance requirements are being met during the decontamination and decommissioning of nuclear facilities. Dose modeling is an important step in the assessment of safety and regulatory compliance, as well as the development of standards and regulatory rulemaking. The ultimate goal of dose modeling and assessments

  13. NPS Quick Reference Guide | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Quick Reference Guide Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: NPS Quick Reference GuideLegal Abstract NPS Quick Reference...

  14. Survey of computed tomography scanners in Taiwan: Dose descriptors, dose guidance levels, and effective doses

    SciTech Connect

    Tsai, H. Y.; Tung, C. J.; Yu, C. C.; Tyan, Y. S.

    2007-04-15

    The IAEA and the ICRP recommended dose guidance levels for the most frequent computed tomography (CT) examinations to promote strategies for the optimization of radiation dose to CT patients. A national survey, including on-site measurements and questionnaires, was conducted in Taiwan in order to establish dose guidance levels and evaluate effective doses for CT. The beam quality and output and the phantom doses were measured for nine representative CT scanners. Questionnaire forms were completed by respondents from facilities of 146 CT scanners out of 285 total scanners. Information on patient, procedure, scanner, and technique for the head and body examinations was provided. The weighted computed tomography dose index (CTDI{sub w}), the dose length product (DLP), organ doses and effective dose were calculated using measured data, questionnaire information and Monte Carlo simulation results. A cost-effective analysis was applied to derive the dose guidance levels on CTDI{sub w} and DLP for several CT examinations. The mean effective dose{+-}standard deviation distributes from 1.6{+-}0.9 mSv for the routine head examination to 13{+-}11 mSv for the examination of liver, spleen, and pancreas. The surveyed results and the dose guidance levels were provided to the national authorities to develop quality control standards and protocols for CT examinations.

  15. Standardized radiological dose evaluations

    SciTech Connect

    Peterson, V.L.; Stahlnecker, E.

    1996-05-01

    Following the end of the Cold War, the mission of Rocky Flats Environmental Technology Site changed from production of nuclear weapons to cleanup. Authorization baseis documents for the facilities, primarily the Final Safety Analysis Reports, are being replaced with new ones in which accident scenarios are sorted into coarse bins of consequence and frequency, similar to the approach of DOE-STD-3011-94. Because this binning does not require high precision, a standardized approach for radiological dose evaluations is taken for all the facilities at the site. This is done through a standard calculation ``template`` for use by all safety analysts preparing the new documents. This report describes this template and its use.

  16. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    A Reference case projections This page inTenTionally lefT blank 25 U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections Table A1. World total primary energy consumption by region, Reference case, 2011-40 (quadrillion Btu) Region History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 120.6 118.1 125.7 128.1 130.7 133.8 138.1 0.6 United States a 96.8 94.4 100.8 102.0 102.9 103.8 105.7 0.4

  17. Appendix A: Reference case projections

    Energy Information Administration (EIA) (indexed site)

    U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections Table A4. World gross domestic product (GDP) by region expressed in market exchange rates, Reference case, 2011-40 (billion 2010 dollars) Region History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 18,006 18,440 22,566 25,585 28,757 32,166 36,120 2.4 United States a 15,021 15,369 18,801 21,295 23,894 26,659 29,898 2.4 Canada 1,662

  18. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    F Reference case projections by end-use sector and country grouping This page inTenTionally lefT blank 63 U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections by end-use sector and country grouping Table F1. Total world delivered energy consumption by end-use sector and fuel, 2011-40 (quadrillion Btu) Sector/fuel History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 Residential Liquids 9.1 9.2 10.0 9.8 9.5

  19. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    H Reference case projections for electricity capacity and generation by fuel This page inTenTionally lefT blank 97 U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections for electricity capacity and generation by fuel Table H1. World total installed generating capacity by region and country, 2011-40 (gigawatts) Region/country History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 1,258 1,278

  20. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    9 U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections Table A14. World population by region, Reference case, 2011-40 (millions) Region History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 484 489 523 544 564 581 597 0.7 United States a 312 315 334 347 359 370 380 0.7 Canada 34 35 38 39 41 43 44 0.8 Mexico and Chile 137 139 151 158 164 169 173 0.8 OECD Europe 548 550 565 571 576 579 581

  1. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    3 U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections Table A8. World nuclear energy consumption by region, Reference case, 2011-40 (billion kilowatthours) Region History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 888 867 902 891 901 900 924 0.2 United States a 790 769 804 808 808 812 833 0.3 Canada 88 89 86 72 72 67 62 -1.3 Mexico and Chile 9 8 12 12 20 20 29 4.5 OECD Europe 861 837

  2. Code System for Calculating Internal and External Doses Resulting from an Atmospheric Release of Radioactive Material.

    Energy Science and Technology Software Center

    1982-06-15

    WRAITH calculates the atmospheric transport of radioactive material to each of a number of downwind receptor points and the external and internal doses to a reference man at each of the receptor points.

  3. Work plan for the Hanford Environmental Dose Reconstruction Project

    SciTech Connect

    Not Available

    1989-12-01

    The primary objective of the Hanford Environmental Dose Reconstruction (HEDR) Project is to estimate the radiation doses that populations could have received from nuclear operations at the Hanford Site since 1944, with descriptions of uncertainties inherent in such estimates. The secondary objective is to make project records--information that HEDR staff members used to estimate radiation doses--available to the public. Preliminary dose estimates for a limited geographic area and time period, certain radionuclides, and certain populations are planned to be available in 1990; complete results are planned to be reported in 1993. Project reports and references used in the reports are available to the public in the DOE Public Reading Room in Richland, Washington. Project progress is documented in monthly reports, which are also available to the public in the DOE Public Reading Room.

  4. ORISE: Dose modeling and assessments

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    The Oak Ridge Institute for Science and Education (ORISE) offers dose modeling and assessment services to demonstrate that federal andor state regulatory compliance requirements...

  5. Draft SPD Supplemental EIS Master Reference List | National Nuclear

    National Nuclear Security Administration (NNSA)

    Security Administration | (NNSA) Draft SPD Supplemental EIS Master Reference List References for Chapters 1 - 5 References for Appendix A References for Appendix B References for Appendix C References for Appendix D References for Appendix E References for Appendix F References for Appendix G References for Appendix H References for Appendix I References for Appendix J References for Summary Learn More SPD SEIS References for Appendix E SPD SEIS References for Appendix F SPD SEIS References

  6. Appendix A: Reference case projections

    Energy Information Administration (EIA) (indexed site)

    U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections Table A1. World total primary energy consumption by region, Reference case, 2011-40 (quadrillion Btu) Region History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 120.6 118.1 125.7 128.1 130.7 133.8 138.1 0.6 United States a 96.8 94.4 100.8 102.0 102.9 103.8 105.7 0.4 Canada 14.5 14.5 15.1 15.6 16.3 17.1 18.1 0.8 Mexico and Chile 9.3

  7. Appendix A: Reference case projections

    Energy Information Administration (EIA) (indexed site)

    U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections Table A6. World natural gas consumption by region, Reference case, 2011-40 (trillion cubic feet) Region History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 30.8 31.8 32.8 34.3 36.5 38.2 40.1 0.8 United States a 24.5 25.5 26.1 26.9 28.1 28.8 29.7 0.5 Canada 3.7 3.7 3.9 4.2 4.7 5.2 5.6 1.5 Mexico and Chile 2.6 2.6 2.8 3.2 3.6 4.2 4.8

  8. Energy reference handbook. Third edition

    SciTech Connect

    Not Available

    1985-01-01

    The energy field has exploded since the OPEC oil embargo of 1973. Terms that did not even exist several years ago are now being used. In addition, many words have developed interpretations somewhat different from their commonly accepted meanings. The 3rd Edition of the Energy Reference Handbook records and standardizes these terms in a comprehensive glossary. Special emphasis is placed on providing terms and definitions in the area of alternative fuels-synthetics from coal and oil shale; solar; wind; biomass; geothermal; and more - as well as traditional fossil fuels. In total, more than 3,500 terms, key words, and phrases used daily in energy literature are referenced. In addition to these definitions, conversion tables, diagrams, maps, tables, and charts on various aspects of energy which forecast the reserves of fuel resources, plus other information relevant to energy resources and technologies are found in this reference.

  9. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    1 U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections for natural gas production Table I1. World total natural gas production by region, Reference case, 2012-40 (trillion cubic feet) Region/country Projections Average annual percent change, 2012-40 2012 2020 2025 2030 2035 2040 OECD OECD Americas 31.8 35.7 38.6 42.1 44.6 47.3 1.4 United States a 24.0 28.7 30.4 32.9 34.0 35.3 1.4 Canada 6.1 5.8 6.6 7.2 7.9 8.6 1.2 Mexico 1.7 1.2 1.5 2.0 2.6 3.3

  10. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    3 U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections for natural gas production Table I3. World other natural gas production by region, Reference case, 2012-40 (trillion cubic feet) Region/country Projections Average annual percent change, 2012-40 2012 2020 2025 2030 2035 2040 OECD OECD Americas 12.0 9.8 9.5 10.7 10.3 10.3 -0.5 United States a 7.5 6.6 6.5 7.8 7.5 7.5 0.0 Canada 2.8 2.0 1.8 1.7 1.6 1.5 -2.2 Mexico 1.7 1.2 1.2 1.2 1.2 1.2 -1.2

  11. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    5 U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections Table A10. World carbon dioxide emissions by region, Reference case, 2011-40 (million metric tons carbon dioxide) Region History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 6,558 6,343 6,569 6,620 6,675 6,769 6,887 0.3 United States a 5,483 5,272 5,499 5,511 5,514 5,521 5,549 0.2 Canada 562 563 557 577 587 621 647 0.5 Mexico and

  12. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    Reference case projections Table A12. World carbon dioxide emissions from natural gas use by region, Reference case, 2011-40 (million metric tons carbon dioxide) Region History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 1,666 1,715 1,766 1,849 1,965 2,063 2,167 0.8 United States a 1,305 1,363 1,394 1,432 1,497 1,538 1,586 0.5 Canada 205 205 213 234 261 287 310 1.5 Mexico and Chile 156 147 158 184 207 238 271 2.2 OECD Europe 1,016 970

  13. Savannah River Site radioiodine atmospheric releases and offsite maximum doses

    SciTech Connect

    Marter, W.L.

    1990-11-01

    Radioisotopes of iodine have been released to the atmosphere from the Savannah River Site since 1955. The releases, mostly from the 200-F and 200-H Chemical Separations areas, consist of the isotopes, I-129 and 1-131. Small amounts of 1-131 and 1-133 have also been released from reactor facilities and the Savannah River Laboratory. This reference memorandum was issued to summarize our current knowledge of releases of radioiodines and resultant maximum offsite doses. This memorandum supplements the reference memorandum by providing more detailed supporting technical information. Doses reported in this memorandum from consumption of the milk containing the highest I-131 concentration following the 1961 1-131 release incident are about 1% higher than reported in the reference memorandum. This is the result of using unrounded 1-131 concentrations of I-131 in milk in this memo. It is emphasized here that this technical report does not constitute a dose reconstruction in the same sense as the dose reconstruction effort currently underway at Hanford. This report uses existing published data for radioiodine releases and existing transport and dosimetry models.

  14. HANFORD WASTE MINERALOGY REFERENCE REPORT

    SciTech Connect

    DISSELKAMP RS

    2010-06-29

    This report lists the observed mineral phases present in the Hanford tanks. This task was accomplished by performing a review of numerous reports that used experimental techniques including, but not limited to: x-ray diffraction, polarized light microscopy, scanning electron microscopy, transmission electron microscopy, energy dispersive spectroscopy, electron energy loss spectroscopy, and particle size distribution analyses. This report contains tables that can be used as a quick reference to identify the crystal phases observed in Hanford waste.

  15. HANFORD WASTE MINEROLOGY REFERENCE REPORT

    SciTech Connect

    DISSELKAMP RS

    2010-06-18

    This report lists the observed mineral phase phases present in the Hanford tanks. This task was accomplished by performing a review of numerous reports using experimental techniques including, but not limited to: x-ray diffraction, polarized light microscopy, scanning electron microscopy, transmission electron microscopy, energy dispersive spectroscopy, electron energy loss spectroscopy, and particle size distribution analyses. This report contains tables that can be used as a quick reference to identify the crystal phases present observed in Hanford waste.

  16. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    J Kaya Identity factor projections * Carbon dioxide intensity * Energy intensity * GDP per capita * Population This page inTenTionally lefT blank 127 U.S. Energy Information Administration | International Energy Outlook 2016 Kaya Identity factor projections Table J1. World carbon dioxide intensity of energy use by region, Reference case, 2011-40 (metric tons per billion Btu) Region History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas

  17. Microgrid cyber security reference architecture.

    SciTech Connect

    Veitch, Cynthia K.; Henry, Jordan M.; Richardson, Bryan T.; Hart, Derek H.

    2013-07-01

    This document describes a microgrid cyber security reference architecture. First, we present a high-level concept of operations for a microgrid, including operational modes, necessary power actors, and the communication protocols typically employed. We then describe our motivation for designing a secure microgrid; in particular, we provide general network and industrial control system (ICS)-speci c vulnerabilities, a threat model, information assurance compliance concerns, and design criteria for a microgrid control system network. Our design approach addresses these concerns by segmenting the microgrid control system network into enclaves, grouping enclaves into functional domains, and describing actor communication using data exchange attributes. We describe cyber actors that can help mitigate potential vulnerabilities, in addition to performance bene ts and vulnerability mitigation that may be realized using this reference architecture. To illustrate our design approach, we present a notional a microgrid control system network implementation, including types of communica- tion occurring on that network, example data exchange attributes for actors in the network, an example of how the network can be segmented to create enclaves and functional domains, and how cyber actors can be used to enforce network segmentation and provide the neces- sary level of security. Finally, we describe areas of focus for the further development of the reference architecture.

  18. Appendix E References | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    E References Crosswalk of Appendix E References to Main DSEIS Reference File name (Main DSEIS) or file name in Appendix E folder DOE (U.S. Department of Energy) 1999. Final ...

  19. Category:Water References | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Water References Jump to: navigation, search Add a new Reference Pages in category "Water References" The following 22 pages are in this category, out of 22 total. A Alaska AS...

  20. Category:Buildings References | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Buildings References Jump to: navigation, search Add a new Reference Pages in category "Buildings References" The following 16 pages are in this category, out of 16 total. B Bureau...

  1. Category:Hydrogen References | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Hydrogen References Jump to: navigation, search Add a new Reference Pages in category "Hydrogen References" The following 6 pages are in this category, out of 6 total. F FERC Order...

  2. Reference Inflow Characterization for River Resource Reference Model (RM2)

    SciTech Connect

    Neary, Vincent S

    2011-12-01

    Sandia National Laboratory (SNL) is leading an effort to develop reference models for marine and hydrokinetic technologies and wave and current energy resources. This effort will allow the refinement of technology design tools, accurate estimates of a baseline levelized cost of energy (LCoE), and the identification of the main cost drivers that need to be addressed to achieve a competitive LCoE. As part of this effort, Oak Ridge National Laboratory was charged with examining and reporting reference river inflow characteristics for reference model 2 (RM2). Published turbulent flow data from large rivers, a water supply canal and laboratory flumes, are reviewed to determine the range of velocities, turbulence intensities and turbulent stresses acting on hydrokinetic technologies, and also to evaluate the validity of classical models that describe the depth variation of the time-mean velocity and turbulent normal Reynolds stresses. The classical models are found to generally perform well in describing river inflow characteristics. A potential challenge in river inflow characterization, however, is the high variability of depth and flow over the design life of a hydrokinetic device. This variation can have significant effects on the inflow mean velocity and turbulence intensity experienced by stationary and bottom mounted hydrokinetic energy conversion devices, which requires further investigation, but are expected to have minimal effects on surface mounted devices like the vertical axis turbine device designed for RM2. A simple methodology for obtaining an approximate inflow characterization for surface deployed devices is developed using the relation umax=(7/6)V where V is the bulk velocity and umax is assumed to be the near-surface velocity. The application of this expression is recommended for deriving the local inflow velocity acting on the energy extraction planes of the RM2 vertical axis rotors, where V=Q/A can be calculated given a USGS gage flow time

  3. Subsurface Knowledge Reference Page | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Subsurface Knowledge Reference Page Subsurface Knowledge Reference Page The below listing provides additional references related to Subsurface & Groundwater Remediation. The references are categorized by documents types (e.g., Strategic Plans, Groundwater Plume Map Booklets, etc.) and under each "document type", there is a list of documents and/or hyperlinks to a reference. The Subsurface Knowledge Reference Page will continue to reflect additional information as it is identified.

  4. Technical Reference for Hydrogen Compatibility of Materials

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    152008 Technical Reference on Hydrogen Compatibility of Materials Austenitc Steels: ... Laboratories Technical Reference on Hydrogen Compatibility of Materials MS-9404 7011 ...

  5. A New Solar Irradiance Reference Spectrum

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    A New Solar Irradiance Reference Spectrum Pilewskie, Peter University of Colorado ... We describe the development of a new solar reference spectrum for radiation and climate ...

  6. Template:ReferenceMaterial | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    - The type of reference material (allowable values include: Journal article, Book, Report, etc.) Documentnumber - The reference material document number or DOI...

  7. Manufacturing Energy and Carbon Footprint References | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Manufacturing Energy and Carbon Footprint References footprintreferences.pdf (309.04 KB) More Documents & Publications 2010 Manufacturing Energy and Carbon Footprints: References ...

  8. Site-Specific Reference Person Parameters and Derived Concentration Standards for the Savannah River Site

    SciTech Connect

    Stone, Daniel K.; Higley, Kathryn A.; Jannik, G. Timothy

    2014-05-01

    The U.S. Department of Energy Order 458.1 states that the compliance with the 1 mSv annual dose constraint to a member of the public may be demonstrated by calculating dose to the maximally exposed individual (MEI) or to a representative person. Historically, the MEI concept was used for dose compliance at the Savannah River Site (SRS) using adult dose coefficients and adult male usage parameters. For future compliance, SRS plans to use the representative person concept for dose estimates to members of the public. The representative person dose will be based on the reference person dose coefficients from the U.S. DOE Derived Concentration Technical Standard and on usage parameters specific to SRS for the reference and typical person. Usage parameters and dose coefficients were determined for inhalation, ingestion and external exposure pathways. The parameters for the representative person were used to calculate and tabulate SRS-specific derived concentration standards (DCSs) for the pathways not included in DOE-STD-1196-2011.

  9. Site-Specific Reference Person Parameters and Derived Concentration Standards for the Savannah River Site

    DOE PAGES [OSTI]

    Stone, Daniel K.; Higley, Kathryn A.; Jannik, G. Timothy

    2014-05-01

    The U.S. Department of Energy Order 458.1 states that the compliance with the 1 mSv annual dose constraint to a member of the public may be demonstrated by calculating dose to the maximally exposed individual (MEI) or to a representative person. Historically, the MEI concept was used for dose compliance at the Savannah River Site (SRS) using adult dose coefficients and adult male usage parameters. For future compliance, SRS plans to use the representative person concept for dose estimates to members of the public. The representative person dose will be based on the reference person dose coefficients from the U.S.more » DOE Derived Concentration Technical Standard and on usage parameters specific to SRS for the reference and typical person. Usage parameters and dose coefficients were determined for inhalation, ingestion and external exposure pathways. The parameters for the representative person were used to calculate and tabulate SRS-specific derived concentration standards (DCSs) for the pathways not included in DOE-STD-1196-2011.« less

  10. Radioactive Dose Assessment and NRC Verification of Licensee Dose Calculation.

    Energy Science and Technology Software Center

    1994-09-16

    Version 00 PCDOSE was developed for the NRC to perform calculations to determine radioactive dose due to the annual averaged offsite release of liquid and gaseous effluent by U.S commercial nuclear power facilities. Using NRC approved dose assessment methodologies, it acts as an inspector's tool for verifying the compliance of the facility's dose assessment software. PCDOSE duplicates the calculations of the GASPAR II mainframe code as well as calculations using the methodologices of Reg. Guidemore » 1.109 Rev. 1 and NUREG-0133 by optional choice.« less

  11. Absorbed Gamma-Ray Doses due to Natural Radionuclides in Building Materials

    SciTech Connect

    Aguiar, Vitor A. P.; Medina, Nilberto H.; Moreira, Ramon H.; Silveira, Marcilei A. G.

    2010-05-21

    This work is devoted to the application of high-resolution gamma-ray spectrometry in the study of the effective dose coming from naturally occurring radionuclides, namely {sup 40}K, {sup 232}Th and {sup 238}U, present in building materials such as sand, cement, and granitic gravel. Four models were applied to estimate the effective dose and the hazard indices. The maximum estimated effective dose coming from the three reference rooms considered is 0.90(45) mSv/yr, and maximum internal hazard index is 0.77(24), both for the compact clay brick reference room. The principal gamma radiation sources are cement, sand and bricks.

  12. PVWatts Version 1 Technical Reference

    SciTech Connect

    Dobos, A. P.

    2013-10-01

    The NREL PVWatts(TM) calculator is a web application developed by the National Renewable Energy Laboratory (NREL) that estimates the electricity production of a grid-connected photovoltaic system based on a few simple inputs. PVWatts combines a number of sub-models to predict overall system performance, and makes several hidden assumptions about performance parameters. This technical reference details the individual sub-models, documents assumptions and hidden parameters, and explains the sequence of calculations that yield the final system performance estimation.

  13. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    9 U.S. Energy Information Administration | International Energy Outlook 2016 Kaya Identity factor projections Table J3. World gross domestic product (GDP) per capita by region expressed in purchasing power parity, Reference case, 2011-40 (2010 dollars per person) Region History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 38,441 39,055 44,716 48,842 53,114 57,747 63,278 1.7 United States a 48,094 48,865 56,285 61,453 66,639 72,107

  14. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    5 U.S. Energy Information Administration | International Energy Outlook 2016 Projections of petroleum and other liquid fuels production in three cases Table G1. World petroleum and other liquids production by region and country, Reference case, 2011-40 (million barrels per day, unless otherwise noted) Region/country History (estimates) Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OPEC a 36.0 37.4 39.2 41.4 44.6 48.7 52.2 1.2 Middle East 26.2 26.6 29.8

  15. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    7 U.S. Energy Information Administration | International Energy Outlook 2016 Projections of petroleum and other liquid fuels production in three cases Table G3. International other liquid fuels a production by region and country, Reference case, 2011-40 (million barrels per day, unless otherwise noted) Region/country History (estimates) Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OPEC b 3.7 3.8 4.3 4.6 4.8 5.2 5.6 1.3 Natural gas plant liquids 3.6 3.7

  16. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    7 U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections for electricity capacity and generation by fuel Table H1. World total installed generating capacity by region and country, 2011-40 (gigawatts) Region/country History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 1,258 1,278 1,330 1,371 1,436 1,517 1,622 0.9 United States a 1,046 1,063 1,079 1,091 1,133 1,187 1,261 0.6 Canada 133 135

  17. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    7 U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections for electricity capacity and generation by fuel Table H11. World installed other renewable generating capacity by region and country, 2011-40 (gigawatts) Region/country History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 41 42 45 49 52 57 59 1.2 United States a 36 37 39 39 39 40 41 0.4 Canada 4 4 5 8 12 15 16 4.9 Mexico and Chile 1 1

  18. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    9 U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections for electricity capacity and generation by fuel Table H13. World net liquids-fred electricity generation by region and country, 2011-40 (billion kilowatthours) Region/country History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 88 88 66 37 36 35 35 -3.3 United States a 30 23 18 18 18 18 18 -0.9 Canada 6 7 6 6 6 5 5 -1.0 Mexico and

  19. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    1 U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections for electricity capacity and generation by fuel Table H15. World net coal-fred electricity generation by region and country, 2011-40 (billion kilowatthours) Region/country History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 1,857 1,630 1,808 1,820 1,786 1,778 1,769 0.3 United States a 1,733 1,514 1,709 1,724 1,713 1,704 1,702 0.4

  20. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    Reference case projections for electricity capacity and generation by fuel Table H17. World net hydroelectric and other renewable electricity generation by region and country, 2011-40 (billion kilowatthours) Region/country History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 1,004 987 1,278 1,376 1,472 1,598 1,763 2.1 United States a 535 520 704 741 781 848 934 2.1 Canada 398 397 459 491 524 557 606 1.5 Mexico and Chile 71 69 115 144

  1. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    5 U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections for electricity capacity and generation by fuel Table H19. World net wind-powered electricity generation by region and country, 2011-40 (billion kilowatthours) Region/country History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 142 156 295 327 354 404 460 3.9 United States a 120 141 232 235 245 278 319 3.0 Canada 20 11 39 46 53 60 66

  2. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    7 U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections for electricity capacity and generation by fuel Table H21. World net solar electricity generation by region and country, 2011-40 (billion kilowatthours) Region/country History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 6 12 57 65 79 96 120 8.7 United States a 6 11 51 59 71 88 110 8.5 Canada 0 0 3 3 4 5 5 10.3 Mexico and Chile 0 0 3

  3. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    9 U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections for electricity capacity and generation by fuel Table H3. World installed natural-gas-fred generating capacity by region and country, 2011-40 (gigawatts) Region/country History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 410 420 455 488 534 584 640 1.5 United States a 358 367 393 409 444 481 525 1.3 Canada 20 20 25 30 36 41 46 3.0

  4. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    1 U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections for electricity capacity and generation by fuel Table H5. World installed nuclear generating capacity by region and country, 2011-40 (gigawatts) Region/country History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 115 117 115 113 115 114 118 0.0 United States a 102 102 101 101 102 102 105 0.1 Canada 13 14 12 10 10 10 9 -1.5 Mexico and

  5. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    3 U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections for electricity capacity and generation by fuel Table H7. World installed hydroelectric generating capacity by region and country, 2011-40 (gigawatts) Region/country History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 171 171 183 187 192 198 210 0.7 United States a 78 78 80 80 80 80 80 0.1 Canada 75 75 83 85 88 90 99 1.0 Mexico and

  6. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    5 U.S. Energy Information Administration | International Energy Outlook 2016 Reference case projections for electricity capacity and generation by fuel Table H9. World installed geothermal generating capacity by region and country, 2011-40 (gigawatts) Region/country History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 3 3 5 7 9 10 11 4.3 United States a 3 3 4 5 7 8 9 4.6 Canada 0 0 0 0 0 0 0 - Mexico and Chile 1 1 1 1 2 2 2 3.3 OECD

  7. Reference electrode for electrolytic cell

    DOEpatents

    Kessie, R.W.

    1988-07-28

    A reference electrode device is provided for a high temperature electrolytic cell used to electrolytically recover uranium from spent reactor fuel dissolved in an anode pool, the device having a glass tube to enclose the electrode and electrolyte and serve as a conductive membrane with the cell electrolyte, and an outer metal tube about the glass tube to serve as a shield and basket for any glass sections broken by handling of the tube to prevent their contact with the anode pool, the metal tube having perforations to provide access between the bulk of the cell electrolyte and glass membrane. 4 figs.

  8. High stability wavefront reference source

    DOEpatents

    Feldman, M.; Mockler, D.J.

    1994-05-03

    A thermally and mechanically stable wavefront reference source which produces a collimated output laser beam is disclosed. The output beam comprises substantially planar reference wavefronts which are useful for aligning and testing optical interferometers. The invention receives coherent radiation from an input optical fiber, directs a diverging input beam of the coherent radiation to a beam folding mirror (to produce a reflected diverging beam), and collimates the reflected diverging beam using a collimating lens. In a class of preferred embodiments, the invention includes a thermally and mechanically stable frame comprising rod members connected between a front end plate and a back end plate. The beam folding mirror is mounted on the back end plate, and the collimating lens mounted to the rods between the end plates. The end plates and rods are preferably made of thermally stable metal alloy. Preferably, the input optical fiber is a single mode fiber coupled to an input end of a second single mode optical fiber that is wound around a mandrel fixedly attached to the frame of the apparatus. The output end of the second fiber is cleaved so as to be optically flat, so that the input beam emerging therefrom is a nearly perfect diverging spherical wave. 7 figures.

  9. High stability wavefront reference source

    DOEpatents

    Feldman, Mark; Mockler, Daniel J.

    1994-01-01

    A thermally and mechanically stable wavefront reference source which produces a collimated output laser beam. The output beam comprises substantially planar reference wavefronts which are useful for aligning and testing optical interferometers. The invention receives coherent radiation from an input optical fiber, directs a diverging input beam of the coherent radiation to a beam folding mirror (to produce a reflected diverging beam), and collimates the reflected diverging beam using a collimating lens. In a class of preferred embodiments, the invention includes a thermally and mechanically stable frame comprising rod members connected between a front end plate and a back end plate. The beam folding mirror is mounted on the back end plate, and the collimating lens mounted to the rods between the end plates. The end plates and rods are preferably made of thermally stable metal alloy. Preferably, the input optical fiber is a single mode fiber coupled to an input end of a second single mode optical fiber that is wound around a mandrel fixedly attached to the frame of the apparatus. The output end of the second fiber is cleaved so as to be optically flat, so that the input beam emerging therefrom is a nearly perfect diverging spherical wave.

  10. Emergency Responder Radioactive Material Quick Reference Sheet

    Energy.gov [DOE]

    Transportation Emergency Preparedness Program (TEPP) Emergency Responder Radioactive Material Quick Reference Sheet

  11. AVIATION SAFETY OFFICER QUALIFICATION STANDARD REFERENCE GUIDE

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ......... 1 SCOPE ......SCOPE This reference guide addresses the competency statements in the January 2010 edition ...

  12. AVIATION MANAGER QUALIFICATION STANDARD REFERENCE GUIDE

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ......... 1 SCOPE ......SCOPE This reference guide addresses the competency statements in the November 2009 ...

  13. SITE SPECIFIC REFERENCE PERSON PARAMETERS AND DERIVED CONCENTRATION STANDARDS FOR THE SAVANNAH RIVER SITE

    SciTech Connect

    Jannik, T.

    2013-03-14

    The purpose of this report is twofold. The first is to develop a set of behavioral parameters for a reference person specific for the Savannah River Site (SRS) such that the parameters can be used to determine dose to members of the public in compliance with Department of Energy (DOE) Order 458.1 “Radiation Protection of the Public and the Environment.” A reference person is a hypothetical, gender and age aggregation of human physical and physiological characteristics arrived at by international consensus for the purpose of standardizing radiation dose calculations. DOE O 458.1 states that compliance with the annual dose limit of 100 mrem (1 mSv) to a member of the public may be demonstrated by calculating the dose to the maximally exposed individual (MEI) or to a representative person. Historically, for dose compliance, SRS has used the MEI concept, which uses adult dose coefficients and adult male usage parameters. Beginning with the 2012 annual site environmental report, SRS will be using the representative person concept for dose compliance. The dose to a representative person will be based on 1) the SRS-specific reference person usage parameters at the 95th percentile of appropriate national or regional data, which are documented in this report, 2) the reference person (gender and age averaged) ingestion and inhalation dose coefficients provided in DOE Derived Concentration Technical Standard (DOE-STD-1196-2011), and 3) the external dose coefficients provided in the DC_PAK3 toolbox. The second purpose of this report is to develop SRS-specific derived concentration standards (DCSs) for all applicable food ingestion pathways, ground shine, and water submersion. The DCS is the concentration of a particular radionuclide in water, in air, or on the ground that results in a member of the public receiving 100 mrem (1 mSv) effective dose following continuous exposure for one year. In DOE-STD-1196-2011, DCSs were developed for the ingestion of water, inhalation of

  14. Estimate Radiological Dose for Animals

    Energy Science and Technology Software Center

    1997-12-18

    Estimate Radiological dose for animals in ecological environment using open literature values for parameters such as body weight, plant and soil ingestion rate, rad. halflife, absorbed energy, biological halflife, gamma energy per decay, soil-to-plant transfer factor, ...etc

  15. Hanford Environmental Dose Reconstruction Project

    SciTech Connect

    McMakin, A.H.; Cannon, S.D.; Finch, S.M.

    1992-07-01

    The objective of the Hanford Environmental Dose Reconstruction (HEDR) Project is to estimate the radiation doses that individuals and populations could have received from nuclear operations at Hanford since 1944. The TSP consists of experts in environmental pathways, epidemiology, surface-water transport, ground-water transport, statistics, demography, agriculture, meteorology, nuclear engineering, radiation dosimetry, and cultural anthropology. Included are appointed technical members representing the states of Oregon, Washington, and Idaho, a representative of Native American tribes, and an individual representing the public. The project is divided into the following technical tasks. These tasks correspond to the path radionuclides followed from release to impact on humans (dose estimates): Source terms, environmental transport, environmental monitoring data, demography, food consumption, and agriculture, and environmental pathways and dose estimates. Progress is discussed.

  16. Preliminary dose assessment of the Chernobyl accident

    SciTech Connect

    Hull, A.P.

    1987-01-01

    From the major accident at Unit 4 of the Chernobyl nuclear power station, a plume of airborne radioactive fission products was initially carried northwesterly toward Poland, thence toward Scandinavia and into Central Europe. Reports of the levels of radioactivity in a variety of media and of external radiation levels were collected in the Department of Energy's Emergency Operations Center and compiled into a data bank. Portions of these and other data which were obtained directly from published and official reports were utilized to make a preliminary assessment of the extent and magnitude of the external dose to individuals downwind from Chernobyl. Radioactive /sup 131/I was the predominant fission product. The time of arrival of the plume and the maximum concentrations of /sup 131/I in air, vegetation and milk and the maximum reported depositions and external radiation levels have been tabulated country by country. A large amount of the total activity in the release was apparently carried to a significant elevation. The data suggest that in areas where rainfall occurred, deposition levels were from ten to one-hundred times those observed in nearby ''dry'' locations. Sufficient spectral data were obtained to establish average release fractions and to establish a reference spectra of the other nuclides in the release. Preliminary calculations indicated that the collective dose equivalent to the population in Scandinavia and Central Europe during the first year after the Chernobyl accident would be about 8 x 10/sup 6/ person-rem. From the Soviet report, it appears that a first year population dose of about 2 x 10/sup 7/ person-rem (2 x 10/sup 5/ Sv) will be received by the population who were downwind of Chernobyl within the U.S.S.R. during the accident and its subsequent releases over the following week. 32 refs., 14 figs., 20 tabs.

  17. Appendix A: Reference case projections

    Energy Information Administration (EIA) (indexed site)

    8 Appendix A Table A3. World gross domestic product (GDP) by region expressed in purchasing power parity, Reference case, 2011-40 (billion 2010 dollars) Region History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 18,616 19,080 23,390 26,577 29,942 33,569 37,770 2.5 United States a 15,021 15,369 18,801 21,295 23,894 26,659 29,898 2.4 Canada 1,396 1,422 1,700 1,881 2,074 2,293 2,529 2.1 Mexico and Chile 2,200 2,288 2,890 3,400 3,974 4,618

  18. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    7 U.S. Energy Information Administration | International Energy Outlook 2016 Kaya Identity factor projections Table J1. World carbon dioxide intensity of energy use by region, Reference case, 2011-40 (metric tons per billion Btu) Region History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 53.6 53.0 52.3 51.7 51.1 50.6 49.9 -0.2 United States a 55.7 55.0 54.5 54.0 53.6 53.2 52.5 -0.2 Canada 38.8 38.9 37.0 37.0 36.1 36.2 35.8 -0.3 Mexico

  19. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    30 Appendix J Table J4. World population by region, Reference case, 2011-2040 (millions) Region History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 484 489 523 544 564 581 597 0.7 United States a 312 315 334 347 359 370 380 0.7 Canada 34 35 38 39 41 43 44 0.8 Mexico and Chile 137 139 151 158 164 169 173 0.8 OECD Europe 548 550 565 571 576 579 581 0.2 OECD Asia 203 204 207 208 208 207 206 0.0 Japan 127 127 125 123 120 117 114 -0.4 South

  20. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    6 Appendix A Table A11. World carbon dioxide emissions from liquids use by region, Reference case, 2011-40 (million metric tons carbon dioxide) Region History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 2,881 2,838 2,861 2,812 2,785 2,794 2,812 0.0 United States a 2,291 2,240 2,269 2,227 2,182 2,163 2,147 -0.2 Canada 289 291 291 289 290 295 304 0.2 Mexico and Chile 301 307 301 296 313 335 361 0.6 OECD Europe 1,969 1,903 1,823 1,804

  1. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    8 Appendix A Table A13. World carbon dioxide emissions from coal use by region, Reference case, 2011-40 (million metric tons carbon dioxide) Region History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 2,000 1,779 1,931 1,947 1,912 1,901 1,896 0.2 United States a 1,876 1,657 1,824 1,840 1,822 1,808 1,804 0.3 Canada 68 68 53 54 36 38 33 -2.5 Mexico and Chile 56 54 53 53 54 55 58 0.3 OECD Europe 1,208 1,251 1,228 1,244 1,219 1,195 1,178

  2. Generic Crystalline Disposal Reference Case

    SciTech Connect

    Painter, Scott Leroy; Chu, Shaoping; Harp, Dylan Robert; Perry, Frank Vinton; Wang, Yifeng

    2015-02-20

    A generic reference case for disposal of spent nuclear fuel and high-level radioactive waste in crystalline rock is outlined. The generic cases are intended to support development of disposal system modeling capability by establishing relevant baseline conditions and parameters. Establishment of a generic reference case requires that the emplacement concept, waste inventory, waste form, waste package, backfill/buffer properties, EBS failure scenarios, host rock properties, and biosphere be specified. The focus in this report is on those elements that are unique to crystalline disposal, especially the geosphere representation. Three emplacement concepts are suggested for further analyses: a waste packages containing 4 PWR assemblies emplaced in boreholes in the floors of tunnels (KBS-3 concept), a 12-assembly waste package emplaced in tunnels, and a 32-assembly dual purpose canister emplaced in tunnels. In addition, three failure scenarios were suggested for future use: a nominal scenario involving corrosion of the waste package in the tunnel emplacement concepts, a manufacturing defect scenario applicable to the KBS-3 concept, and a disruptive glaciation scenario applicable to both emplacement concepts. The computational approaches required to analyze EBS failure and transport processes in a crystalline rock repository are similar to those of argillite/shale, with the most significant difference being that the EBS in a crystalline rock repository will likely experience highly heterogeneous flow rates, which should be represented in the model. The computational approaches required to analyze radionuclide transport in the natural system are very different because of the highly channelized nature of fracture flow. Computational workflows tailored to crystalline rock based on discrete transport pathways extracted from discrete fracture network models are recommended.

  3. Technical basis for dose reconstruction

    SciTech Connect

    Anspaugh, L.R.

    1996-01-31

    The purpose of this paper is to consider two general topics: technical considerations of why dose-reconstruction studies should or should not be performed and methods of dose reconstruction. The first topic is of general and growing interest as the number of dose-reconstruction studies increases, and one asks the question whether it is necessary to perform a dose reconstruction for virtually every site at which, for example, the Department of Energy (DOE) has operated a nuclear-related facility. And there is the broader question of how one might logically draw the line at performing or not performing dose-reconstruction (radiological and chemical) studies for virtually every industrial complex in the entire country. The second question is also of general interest. There is no single correct way to perform a dose-reconstruction study, and it is important not to follow blindly a single method to the point that cheaper, faster, more accurate, and more transparent methods might not be developed and applied.

  4. Weldon Spring historical dose estimate

    SciTech Connect

    Meshkov, N.; Benioff, P.; Wang, J.; Yuan, Y.

    1986-07-01

    This study was conducted to determine the estimated radiation doses that individuals in five nearby population groups and the general population in the surrounding area may have received as a consequence of activities at a uranium processing plant in Weldon Spring, Missouri. The study is retrospective and encompasses plant operations (1957-1966), cleanup (1967-1969), and maintenance (1969-1982). The dose estimates for members of the nearby population groups are as follows. Of the three periods considered, the largest doses to the general population in the surrounding area would have occurred during the plant operations period (1957-1966). Dose estimates for the cleanup (1967-1969) and maintenance (1969-1982) periods are negligible in comparison. Based on the monitoring data, if there was a person residing continually in a dwelling 1.2 km (0.75 mi) north of the plant, this person is estimated to have received an average of about 96 mrem/yr (ranging from 50 to 160 mrem/yr) above background during plant operations, whereas the dose to a nearby resident during later years is estimated to have been about 0.4 mrem/yr during cleanup and about 0.2 mrem/yr during the maintenance period. These values may be compared with the background dose in Missouri of 120 mrem/yr.

  5. Research Notes and Information References

    Energy Science and Technology Software Center

    1994-12-01

    The RNS (Research Notes System) is a set of programs and databases designed to aid the research worker in gathering, maintaining, and using notes taken from the literature. The sources for the notes can be books, journal articles, reports, private conversations, conference papers, audiovisuals, etc. The system ties the databases together in a relational structure, thus eliminating data redundancy while providing full access to all the information. The programs provide the means for access andmore » data entry in a way that reduces the key-entry burden for the user. Each note has several data fields. Included are the text of the note, the subject classification (for retrieval), and the reference identification data. These data are divided into four databases: Document data - title, author, publisher, etc., fields to identify the article within the document; Note data - text and page of the note; Sublect data - subject categories to ensure uniform spelling for searches. Additionally, there are subsidiary files used by the system, including database index and temporary work files. The system provides multiple access routes to the notes, both structurally (access method) and topically (through cross-indexing). Output may be directed to a printer or saved as a file for input to word processing software.« less

  6. Appendix A: Reference case projections

    Energy Information Administration (EIA) (indexed site)

    6 Appendix A Table A2. World total energy consumption by region and fuel, Reference case, 2011-40 (quadrillion Btu) Region History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas Liquids 45.3 44.6 46.4 46.1 46.0 46.2 46.7 0.2 Natural gas 31.8 32.8 33.9 35.5 37.7 39.5 41.4 0.8 Coal 21.0 18.7 20.3 20.5 20.1 20.0 20.0 0.2 Nuclear 9.4 9.2 9.5 9.4 9.5 9.5 9.7 0.2 Other 13.1 12.9 15.6 16.6 17.5 18.6 20.3 1.6 Total 120.6 118.1 125.7 128.1 130.7

  7. Appendix A: Reference case projections

    Energy Information Administration (EIA) (indexed site)

    30 Appendix A Table A5. World liquids consumption by region, Reference case, 2011-40 (million barrels per day) Region History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 23.6 23.2 24.4 24.4 24.3 24.4 24.6 0.2 United States a 18.9 18.5 19.6 19.6 19.4 19.3 19.3 0.2 Canada 2.3 2.4 2.4 2.4 2.4 2.4 2.5 0.2 Mexico and Chile 2.4 2.4 2.4 2.4 2.5 2.7 2.9 0.6 OECD Europe 14.5 14.1 13.7 13.6 13.7 13.8 14.0 0.0 OECD Asia 7.9 8.2 7.7 7.5 7.5 7.5

  8. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    8 Appendix J Table J2. World energy intensity by region, Reference case, 2011-40 (thousand Btu per 2010 dollar of GDP) Region History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 6.5 6.2 5.4 4.8 4.4 4.0 3.7 -1.9 United States a 6.4 6.1 5.4 4.8 4.3 3.9 3.5 -2.0 Canada 10.4 10.2 8.9 8.3 7.8 7.5 7.1 -1.3 Mexico and Chile 4.2 4.0 3.4 3.1 2.9 2.8 2.7 -1.4 OECD Europe 4.4 4.4 3.9 3.7 3.5 3.3 3.2 -1.1 OECD Asia 5.7 5.5 5.4 5.3 5.1 4.9 4.8 -0.5

  9. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    86 Appendix G Table G2. World crude oil a production by region and country, Reference case, 2011-40 (million barrels per day, unless otherwise noted) Region/country History (estimates) Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OPEC b 32.2 33.4 34.9 36.8 39.7 43.4 46.6 1.2 Middle East 22.9 23.2 26.2 27.9 30.3 33.4 35.6 1.5 North Africa 2.0 2.9 1.6 1.7 1.8 2.0 2.2 -1.0 West Africa 4.3 4.3 4.3 4.3 4.5 4.7 5.1 0.6 South America 3.0 3.0 2.8 2.9 3.1 3.4 3.6

  10. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    2 Appendix I Table I2. World tight gas, shale gas and coalbed methane production by region, Reference case, 2012-40 (trillion cubic feet) Region/country Projections Average annual percent change, 2012-40 2012 2020 2025 2030 2035 2040 OECD OECD Americas 19.8 26.0 29.0 31.4 34.3 37.0 2.3 United States a 16.6 22.1 23.9 25.1 26.5 27.8 1.9 Canada 3.3 3.8 4.9 5.5 6.3 7.0 2.8 Mexico 0.0 0.1 0.3 0.8 1.4 2.2 - Chile 0.0 0.0 0.0 0.0 0.0 0.0 - OECD Europe 0.0 0.5 1.7 3.3 4.6 5.5 21.8 North Europe 0.0 0.5

  11. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    4 Appendix I Table I4. World net trade in natural gas by region, Reference case, 2012-40 (trillion cubic feet) Region/country Projections Average annual percent change, 2012-40 2012 2020 2025 2030 2035 2040 OECD OECD Americas 0.3 -2.6 -4.0 -5.4 -6.2 -6.9 - United States a 1.5 -2.6 -3.5 -4.8 -5.2 -5.6 - Canada -2.3 -1.9 -2.3 -2.4 -2.7 -2.8 0.7 Mexico 1.0 1.7 1.7 1.6 1.5 1.3 1.1 Chile 0.1 0.1 0.1 0.2 0.2 0.2 1.7 OECD Europe 7.8 10.9 11.9 12.7 13.0 14.0 2.1 North Europe 2.4 5.2 5.9 6.1 6.1 6.3 3.5

  12. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    2 Appendix A Table A7. World coal consumption by region, Reference case, 2011-40 (quadrillion Btu) Region History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 21.0 18.7 20.3 20.5 20.1 20.0 20.0 0.2 United States a 19.6 17.3 19.2 19.3 19.2 19.0 19.0 0.3 Canada 0.7 0.7 0.6 0.6 0.4 0.4 0.4 -2.5 Mexico and Chile 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.3 OECD Europe 12.9 13.4 13.2 13.3 13.1 12.8 12.6 -0.2 OECD Asia 9.7 9.7 10.2 10.1 10.1 10.1 10.1 0.1

  13. Appendix A: Reference case projections

    Gasoline and Diesel Fuel Update

    4 Appendix A Table A9. World consumption of hydroelectricity and other renewable energy by region, Reference case, 2011-40 (quadrillion Btu) Region History Projections Average annual percent change, 2012-40 2011 2012 2020 2025 2030 2035 2040 OECD OECD Americas 13.1 12.9 15.6 16.6 17.5 18.6 20.3 1.6 United States a 7.9 7.7 9.3 9.7 9.9 10.4 11.3 1.4 Canada 4.3 4.2 4.8 5.1 5.5 5.8 6.3 1.4 Mexico and Chile 0.9 1.0 1.5 1.8 2.1 2.4 2.7 3.7 OECD Europe 10.7 11.5 15.7 16.7 17.3 18.5 19.6 1.9 OECD Asia

  14. Hanford Environmental Dose Reconstruction Project

    SciTech Connect

    Finch, S. M.; McMakin, A. H.

    1991-09-01

    The objective of the Hanford Environmental Dose Reconstruction Project is to estimate the radiation dose that individuals and populations could have received from nuclear operations at Hanford since 1944. The project is divided into five technical tasks. These tasks correspond to the path radionuclides followed, from release to impact on humans (i.e., dose estimates). The Source Terms Task develops estimates of radioactive emissions from Hanford facilities since 1944. The Environmental Transport Task reconstructs the movements of radioactive particles from the areas of release to populations. The Environmental Monitoring Data Task assemblies, evaluates and reports historical environmental monitoring data. The Demographics, Agriculture and Food Habits Task develops the data needed to identify the populations that could have been affected by the releases. The Environmental Pathways and Dose Estimates Task used the information derived from the other Tasks to estimate the radiation doses individuals could have received from Hanford radiation. This document lists the progress on this project as of September 1991. 3 figs., 2 tabs.

  15. Form:Reference | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    The reference title should match the book title. e.g.- Where the Wild Things Are Book Review Used when citing a review of a book. The reference title should include "Review of the...

  16. Appendix C References | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    DOE (U.S. Department of Energy) 2003. Estimating Radiation Risk from Total Effective Dose Equivalent (TEDE). ISCORS Technical Report No. 1. DOEEH-41200150802, Rev. 1. January. ...

  17. Functional Area Qualification Standard Reference Guides

    Energy.gov [DOE]

    The reference guides have been developed to address the competency statements in DOE Functional Area Qualification Standard.

  18. Commercial Reference Buildings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Reference Buildings Commercial Reference Buildings The U.S. Department of Energy (DOE), in conjunction with three of its national laboratories, developed commercial reference buildings, formerly known as commercial building benchmark models. These reference buildings play a critical role in the program's energy modeling software research by providing complete descriptions for whole building energy analysis using EnergyPlus simulation software. There are 16 building types that represent

  19. OSTIblog Articles in the reference linking Topic | OSTI, US Dept...

    Office of Scientific and Technical Information (OSTI)

    reference linking Topic OSTI and Reference Linking by Daphne Evans 13 May, 2008 in Technology OSTI actively supports the practice of Reference Linking. Also referred to as citation ...

  20. EMP Attachment 3 DOE-SC PNNL Site Dose Assessment Guidance

    SciTech Connect

    Snyder, Sandra F.

    2011-12-21

    This Dose Assessment Guidance (DAG) describes methods to use to determine the Maximally-Exposed Individual (MEI) location and to estimate dose impact to that individual under the U.S. Department of Energy Office of Science (DOE-SC) Pacific Northwest National Laboratory (PNNL) Site Environmental Monitoring Plan (EMP). This guidance applies to public dose from radioactive material releases to the air from PNNL Site operations. This document is an attachment to the Pacific Northwest National Laboratory (PNNL) Environmental Monitoring Plan (EMP) and describes dose assessment guidance for radiological air emissions. The impact of radiological air emissions from the U.S. Department of Energy Office of Science (DOE-SC) PNNL Site is indicated by dose estimates to a maximally exposed member of the public, referred to as the maximally exposed individual (MEI). Reporting requirements associated with dose to members of the public from radiological air emissions are in 40 CFR Part 61.94, WAC 246-247-080, and DOE Order 458.1. The DOE Order and state standards for dose from radioactive air emissions are consistent with U.S. Environmental Protection Agency (EPA) dose standards in 40 CFR 61.92 (i.e., 10 mrem/yr to a MEI). Despite the fact that the current Contract Requirements Document (CRD) for the DOE-SC PNNL Site operations does not include the requirement to meet DOE CRD 458.1, paragraph 2.b, public dose limits, the DOE dose limits would be met when EPA limits are met.

  1. References | National Nuclear Security Administration | (NNSA)

    National Nuclear Security Administration (NNSA)

    References U.S. Department of Energy / U.S. Nuclear Regulatory Commission Nuclear Materials Management & Safeguards System References Additional information related to the NMMSS may be located in the publications listed below. By referencing these documents, a more extensive understanding of the system may be gained. Other references extracted from DOE M 470.4-6 and used within the industry have also been included. "Agreement between the United States of America and the IAEA for the

  2. Existing Commercial Reference Buildings Constructed Before 1980 |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Before 1980 Existing Commercial Reference Buildings Constructed Before 1980 The files on this page contain commercial reference building models for existing buildings constructed before 1980, organized by building type and location. These U.S. Department of Energy (DOE) reference buildings are complete descriptions for whole building energy analysis. You can also return to a summary of building types and climate zones and information about other building vintages. These

  3. ORISE: Radiological Terms Quick Reference Guide

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Type text Type text Type text Radiation Emergency Assistance CenterTraining Site ... 2015 Quick Reference Information - Radiation Activity: Radioactive materials aren't ...

  4. FAQS Reference Guide – Environmental Compliance

    Office of Energy Efficiency and Renewable Energy (EERE)

    This reference guide addresses the competency statements in the June 2011 edition of DOE-STD-1156-2011, Environmental Compliance Functional Area Qualification Standard.

  5. FAQS Reference Guide – Emergency Management

    Office of Energy Efficiency and Renewable Energy (EERE)

    This reference guide addresses the competency statements in the January 2004 edition of DOE-STD-1177-2004, Emergency Management Functional Area Qualification Standard.

  6. Reference Form | SREL REU in Radioecology

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    to highlight specific examples that illustrate the candidate's strengths or suitability to the program. Therefore, we also require references to also upload a letter of...

  7. FAQS Reference Guide – Criticality Safety (NNSA)

    Energy.gov [DOE]

    This reference guide has been developed to address the competency statements in DOE-STD-1173-2009, Criticality Safety Functional Area Qualification Standard.

  8. FAQS Reference Guide – Technical Training

    Energy.gov [DOE]

    This reference guide addresses the competency statements in the February 2004 edition of DOE-STD-1179-2004, Technical Training Functional Area Qualification Standard.

  9. FAQS Reference Guide – Facility Representative

    Office of Energy Efficiency and Renewable Energy (EERE)

    This reference guide addresses the competency statements in the October 2010 edition of DOE-STD-1151-2010, Facility Representative Functional Area Qualification Standard.

  10. Template:Reference | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    for references that may not require listed authors such as technical reports or web referenced material (Report & Web Site) GraphicAuthor - List of authors or map...

  11. Floating Oscillating Water Column Reference Model Completed

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Floating Oscillating Water Column Reference Model Completed - Sandia Energy Energy Search ... Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 ...

  12. Commercial Reference Buildings | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Reference Building Types1 , which represent approximately 70% of the commercial buildings in the U.S. 2. Whole building energy analysis data (developed using EnergyPlus...

  13. FAQS Reference Guide – Industrial Hygiene

    Energy.gov [DOE]

    This reference guide addresses the competency statements in the November 2007 edition of DOE-STD-1138-2007, Industrial Hygiene Functional Area Qualification Standard.

  14. Multiple Reference Fourier Transform Holography: Five Images...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Multiple Reference Fourier Transform Holography: Five Images for the Price of One ... Our technique uses coherent x-ray scattering to simultaneously acquire multiple images of ...

  15. Property:ReferenceGenre | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Property Type Text Description The genre or subcategory label of reference material. Allows Values Buildings;Bulk Transmission;Geothermal;Hydrogen;Hydropower;Smart...

  16. FAQS Reference Guide – Construction Management

    Office of Energy Efficiency and Renewable Energy (EERE)

    This reference guide addresses the competency statements in the March 2004 edition of DOE-STD-1180-2004, Construction Management Functional Area Qualification Standard.

  17. FAQS Reference Guide – Fire Protection Engineering

    Office of Energy Efficiency and Renewable Energy (EERE)

    This reference guide addresses the competency statements in the December 2007 edition of DOE-STD-1137-2007, Fire Protection Engineering Functional Area Qualification Standard.

  18. IBM References | Argonne Leadership Computing Facility

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Feedback Form IBM References Contents IBM Redbooks A2 Processor Manual QPX Vector Instruction Set Architecture XL Compiler Documentation MASS Documentation Back to top IBM...

  19. FAQS Reference Guide – Criticality Safety

    Office of Energy Efficiency and Renewable Energy (EERE)

    This reference guide addresses the competency statements in the April 2009 edition of DOE-STD-1173-2009, Criticality Safety Functional Area Qualification Standard.

  20. Manufacturing Energy and Carbon Footprint References

    Energy.gov [DOE] (indexed site)

    References AMO (Advanced Manufacturing Office), EERE (Energy Efficiency and Renewable Energy). 2012. Consider Installing High-Pressure Boilers with Backpressure Turbine-Generators. ...

  1. EERE Program Management Quick Reference Guide

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    a companion to the Office of Energy Efficiency and Renewable Energy (EERE) Program Management Reference Guide. It provides an overall description of the EERE program management ...

  2. Reference Designs for Hydrogen Fueling Stations Webinar

    Energy.gov [DOE]

    Access the recording and download the presentation slides from the Fuel Cell Technologies Office webinar "Reference Designs for Hydrogen Fueling Stations" held on October 13, 2015.

  3. Dose comparisons for mammographic systems

    SciTech Connect

    Speiser, R.C.; Zanrosso, E.M.; Jeromin, L.S.; Carlson, R.A.

    1986-09-01

    Dose estimates were made for Kodak Min-R screens combined with Kodak Min-R film and Kodak Ortho M film, both with and without a 5:1 Bucky grid; for standard xeroradiographic techniques in negative development mode; and for the new, higher sensitivity xeroradiographic process of the Xerox 175 System. The estimates were derived from exposure versus depth measurements in phantoms made of BR12 breast simulation material using thermoluminescent detectors. A molybdenum target source with molybdenum filtration, at a half-value layer of 0.37-mm Al, was used for the screen-film measurements. All xeroradiographic measurements were made with a tungsten target source with aluminum filtration at half-value layers of 1.5 to 1.56 mm Al. Mean glandular dose estimates for the Min-R screen/Ortho M film combination with Bucky grid and for the new xeroradiographic process were found to be similar. Dose reduction with the new xeroradiographic system was achieved through a more sensitive photoreceptor and more sensitive development, which also improved the unique imaging characteristics of xeroradiography.

  4. High-dose secondary calibration laboratory accreditation program

    SciTech Connect

    Humphreys, J.C.

    1993-12-31

    There is a need for high-dose secondary calibration laboratories to serve the multi-billion dollar radiation processing industry. This need is driven by the desires of industry for less costly calibrations and faster calibration-cycle response time. Services needed include calibration irradiations of routine processing dosimeters and the supply of reference standard transfer dosimeters for irradiation in the production processing facility. In order to provide measurement quality assurance and to demonstrate consistency with national standards, the high-dose secondary laboratories would be accredited by means of an expansion of an existing National Voluntary Laboratory Accreditation Program. A laboratory performance criteria document is under development to implement the new program.

  5. Archived Reference Building Type: Large Hotel

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  6. Archived Reference Building Type: Quick service restaurant

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  7. Archived Reference Building Type: Quick service restaurant

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  8. Archived Reference Building Type: Full service restaurant

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  9. Archived Reference Building Type: Full service restaurant

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  10. Archived Reference Climate Zone: 8 Fairbanks, Alaska

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zonesis available for reference.Current versionsare also available.

  11. Archived Reference Climate Zone: 8 Fairbanks, Alaska

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  12. References - DOE Directives, Delegations, and Requirements

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    References by Website Administrator This page provides information and links to references. Technical Standards Technical Standards Program Technical Standards Home RevCom for Technical Standards Technical Standards Crosswalk NNSA Directives National Nuclear Security Administration (NNSA) Supplemental Directives NNSA Policies (NAPs) FAR Federal Acquisition Regulations Federal Acquisition Regulations (FAR) DOE Acquisition Regulations (DEAR) CFR Code of Federal Regulations CFR (annual edition) 10

  13. Archived Reference Building Type: Primary school

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  14. Archived Reference Building Type: Primary school

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  15. Archived Reference Building Type: Outpatient health care

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  16. Archived Reference Building Type: Medium office

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  17. Archived Reference Building Type: Medium office

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  18. Archived Reference Building Type: Small Hotel

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  19. Archived Reference Building Type: Large Hotel

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  20. Archived Reference Building Type: Small Hotel

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  1. Archived Reference Building Type: Secondary school

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  2. Archived Reference Building Type: Secondary school

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  3. Archived Reference Building Type: Outpatient health care

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  4. Archived Reference Building Type: Strip mall

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zonesis available for reference.Current versionsare also available.

  5. Archived Reference Building Type: Strip mall

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  6. Archived Reference Climate Zone: 7 Duluth, Minnesota

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  7. Archived Reference Climate Zone: 7 Duluth, Minnesota

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  8. Archived Reference Building Type: Midrise Apartment

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zonesis available for reference.Current versionsare also available.

  9. Archived Reference Building Type: Midrise Apartment

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  10. Hanford Environmental Dose Reconstruction Project. Monthly report

    SciTech Connect

    Cannon, S.D.; Finch, S.M.

    1992-10-01

    The objective of the Hanford Environmental Dose Reconstruction (HEDR) Project is to estimate the radiation doses that individuals and populations could have received from nuclear operations at Hanford since 1944. The independent Technical Steering Panel (TSP) provides technical direction. The project is divided into the following technical tasks. These tasks correspond to the path radionuclides followed from release to impact on humans (dose estimates):Source Terms, Environmental Transport, Environmental Monitoring Data, Demography, Food Consumption, and Agriculture, and Environmental Pathways and Dose Estimates.

  11. Excepted Service EJ and EK Desk Reference

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    1] U.S. DEPARTMENT OF ENERGY Office of the Chief Human Capital Officer 2012 Excepted Service EJ and EK Desk Reference E X E C U T I V E R E S O U R C E S D I V I S I O N [2] Executive Summary The Excepted Service EJ and EK Desk Reference is designed to provide the framework, in conjunction, with the DOE O 329.1 (Excepted Service Authorities for EJ and EK Pay Plans). Specifically, the desk reference addresses the requirements for the Excepted Service EJ and EK positions, to include: * Description

  12. FAQS Reference Guide - Aviation Manager | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    FAQS Reference Guide - Aviation Manager FAQS Reference Guide - Aviation Manager This reference guide addresses the competency statements in the January 2010 edition of...

  13. Microsoft Word - Cross Reference Matrix Introduction.doc | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Cross Reference Matrix Introduction.doc Microsoft Word - Cross Reference Matrix Introduction.doc PDF icon Microsoft Word - Cross Reference Matrix Introduction.doc More Documents & ...

  14. GASPAR II: Technical reference and user guide

    SciTech Connect

    Strenge, D.L.; Bander, T.J.; Soldat, J.K.

    1987-03-01

    This report describes the computer program GASPAR II used by the staff of the US Nuclear Regulatory Commission to perform environmental dose analyses for releases of radioactive effluents from nuclear power plants into the atmosphere. The analyses estimate radiation dose to individuals and population groups from inhalation, ingestion (terrestrial foods), and external-exposure (ground and plume) pathways. The calculated doses provide information for National Environmental Policy Act (NEPA) evaluations and for determining compliance with Appendix I of 10 CFR 50 (the ''ALARA'' philosophy). The report also instructs the user in preparing input to the program, describes the mathematical models that are used, and supplies detailed information on program structure and parameters used to modify the program. 20 refs., 11 figs., 77 tabs.

  15. A Program for Calculating Radiation Dose Rates.

    Energy Science and Technology Software Center

    1986-01-27

    Version 00 SMART calculates radiation dose rate at the center of the outer cask surface. It can be applied to determine the radiation dose rate on each cask if source conditions, characteristic function, and material conditions in the bottle regions are given. MANYCASK calculates radiation dose rate distribution in a space surrounded by many casks. If the dose rate on each cask surface can be measured, MANYCASK can be applied to predict dose spatial dosemore » rate distribution for any case of cask configuration.« less

  16. Emergency Responder Radioactive Material Quick Reference Sheet

    Energy.gov [DOE]

    This job aid is a quick reference to assist emergency responders in identifying preliminary safety precautions that should be taken during the initial response phase after arrival at the scene of...

  17. FAQS Reference Guide – General Technical Base

    Office of Energy Efficiency and Renewable Energy (EERE)

    This reference guide has been developed to address the competency statements in the March 2015 reaffirmed edition of DOE Standard (STD)-1146-2007, General Technical Base Qualification Standard.

  18. Excepted Service EJ and EK Desk Reference

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Excepted Service EJ and EK Desk Reference is designed to provide the framework, in conjunction, with the DOE O 329.1 (Excepted Service Authorities for EJ and EK Pay Plans). Specifically, the...

  19. FAQS Reference Guide – Quality Assurance

    Energy.gov [DOE]

    This reference guide has been developed to address the competency statements in the April 2002 edition of DOE-Standard (STD)-1150-2002, Quality Assurance Functional Area Qualification Standard.

  20. New Construction Commercial Reference Buildings — Archive

    Energy.gov [DOE]

    Here you will find past versions of the reference buildings for new construction commercial buildings, organized by building type and location. A summary of building types and climate zones is...

  1. FAQS Reference Guide – Civil/ Structural Engineering

    Office of Energy Efficiency and Renewable Energy (EERE)

    This reference guide has been developed to address the competency statements in the March 2004 edition of DOE-STD-1182-2004, Civil/Structural Engineering Functional Area Qualification Standard.

  2. New Robust References! | OpenEI Community

    OpenEI (Open Energy Information) [EERE & EIA]

    provided document type If I,Robot doesn't exist yet, the template will return a red link specially coded to open in the Reference form so that it can be easily added...

  3. Multi-reference Fourier Transform Holography

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Sthr Research 28 February 2007 Five Images for the Price of One: Using X-ray Holography ... By illuminating several references with coherent x-rays, multiple holographic images of ...

  4. FAQS Reference Guide – Occupational Safety

    Office of Energy Efficiency and Renewable Energy (EERE)

    This reference guide has been developed to address the competency statements in the July 2011 version of DOE-STD-1160-2011, Occupational Safety Functional Area Qualification Standard.

  5. Archive Reference Buildings by Building Type: Warehouse

    Energy.gov [DOE]

    Here you will find past versions of the reference buildings for new construction commercial buildings, organized by building type and location. A summary of building types and climate zones is...

  6. Template:ReferenceHeader | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Reference Library banner, typically across the top of the page, which features a unique color scheme and simple menu. Parameters none Usage It should be called in the following...

  7. FAQS Reference Guide –Radiation Protection

    Office of Energy Efficiency and Renewable Energy (EERE)

    This reference guide has been developed to address the competency statements in the December 2003 edition of DOE-STD-1174-2003, Radiation Protection Functional Area Qualification Standard.

  8. Webinar: Reference Designs for Hydrogen Fueling Stations

    Energy.gov [DOE]

    The Fuel Cell Technologies Office will present a live webinar titled "Reference Designs for Hydrogen Fueling Stations" on Tuesday, October 13, from 12 to 1 p.m. Eastern Daylight Time (EDT).

  9. Automotive Stirling reference engine design report

    SciTech Connect

    Not Available

    1981-06-01

    The Reference Stirling Engine System, which was to provide the best possible fuel economy while meeting or exceeding all other program objectives is described. It was designed to meet the requirements of a Reference Vehicle, which is a 1984 GM Pontiac Phoenix (X-body). This design utilizes all new technology that can reasonably be expected to be developed by 1984 and that is judged to provide significant improvement, relative to development risk and cost.

  10. "Analysis of SOFCs using reference electrodes?

    SciTech Connect

    Finklea, Harry; Chen,Xiaoke; Gerdes,Kirk; Pakalapati, Suryanarayana; Celik, Ismail

    2013-07-01

    Reference electrodes are frequently applied to isolate the performance of one electrode in a solid oxide fuel cell. However, reference electrode simulations raise doubt to veracity of data collected using reference electrodes. The simulations predict that the reported performance for the one electrode will frequently contain performance of both electrodes. Nonetheless, recent reports persistently treat data so collected as ideally isolated. This work confirms the predictions of the reference electrode simulations on two SOFC designs, and to provides a method of validating the data measured in the 3-electrode configuration. Validation is based on the assumption that a change in gas composition to one electrode does not affect the impedance of the other electrode at open circuit voltage. This assumption is supported by a full physics simulation of the SOFC. Three configurations of reference electrode and cell design are experimentally examined using various gas flows and two temperatures. Impedance data are subjected to deconvolution analysis and equivalent circuit fitting and approximate polarization resistances of the cathode and anode are determined. The results demonstrate that the utility of reference electrodes is limited and often wholly inappropriate. Reported impedances and single electrode polarization values must be scrutinized on this basis.

  11. References, Canceled-7 Section B- April 16 2010

    Energy.gov [DOE]

    This Section contains S&S references arranged as general references and by topical S&S programmatic areas

  12. Introduction of section II and overview of dose reconstruction: lessons learned from studies in the U.S.

    SciTech Connect

    Anspaugh, L. R, LLNL

    1997-01-01

    The purpose of this presentation is to provide an overview of dose reconstruction with an emphasis on the lessons learned from work in the United States. Several major dose reconstructions have been undertaken in the United States, particularly in reference to Department of Energy (DOE) facilities. Some of these activities have now been completed and these are indicated in the upper part of Table 2. The first major activity took place at the Nevada Test Site (NTS),where researchers have considered several different specific populations. The activities began with an analysis of hypothetical individuals, which was followed by an analysis of the collective dose to all exposed individuals within the surrounding region. Later, the University of Utah undertook some specific epidemiologic studies and calculated doses to specific individuals. The Hanford Environmental Dose Reconstruction Study has completed its results for hypothetical individuals. The Hanford researchers did not report collective dose. Long-Term Radiation Contamination in Chelyabinsk, Russia

  13. FAQS Reference Guide - Environmental Restoration | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Environmental Restoration FAQS Reference Guide - Environmental Restoration This reference guide addresses the competency statements in the November 2002 edition of DOE-STD-1157-2002, Environmental Restoration Functional Area Qualification Standard. Environmental Restoration Qualification Standard Reference Guide, November 2009 (2.3 MB) More Documents & Publications FAQS Reference Guide - Waste Management FAQS Reference Guide - Criticality Safety (NNSA) FAQS Reference Guide - Transportation

  14. Multicriteria optimization of the spatial dose distribution

    SciTech Connect

    Schlaefer, Alexander; Viulet, Tiberiu; Muacevic, Alexander; Frweger, Christoph

    2013-12-15

    Purpose: Treatment planning for radiation therapy involves trade-offs with respect to different clinical goals. Typically, the dose distribution is evaluated based on few statistics and dosevolume histograms. Particularly for stereotactic treatments, the spatial dose distribution represents further criteria, e.g., when considering the gradient between subregions of volumes of interest. The authors have studied how to consider the spatial dose distribution using a multicriteria optimization approach.Methods: The authors have extended a stepwise multicriteria optimization approach to include criteria with respect to the local dose distribution. Based on a three-dimensional visualization of the dose the authors use a software tool allowing interaction with the dose distribution to map objectives with respect to its shape to a constrained optimization problem. Similarly, conflicting criteria are highlighted and the planner decides if and where to relax the shape of the dose distribution.Results: To demonstrate the potential of spatial multicriteria optimization, the tool was applied to a prostate and meningioma case. For the prostate case, local sparing of the rectal wall and shaping of a boost volume are achieved through local relaxations and while maintaining the remaining dose distribution. For the meningioma, target coverage is improved by compromising low dose conformality toward noncritical structures. A comparison of dosevolume histograms illustrates the importance of spatial information for achieving the trade-offs.Conclusions: The results show that it is possible to consider the location of conflicting criteria during treatment planning. Particularly, it is possible to conserve already achieved goals with respect to the dose distribution, to visualize potential trade-offs, and to relax constraints locally. Hence, the proposed approach facilitates a systematic exploration of the optimal shape of the dose distribution.

  15. Radiological assessment. A textbook on environmental dose analysis

    SciTech Connect

    Till, J.E.; Meyer, H.R.

    1983-09-01

    Radiological assessment is the quantitative process of estimating the consequences to humans resulting from the release of radionuclides to the biosphere. It is a multidisciplinary subject requiring the expertise of a number of individuals in order to predict source terms, describe environmental transport, calculate internal and external dose, and extrapolate dose to health effects. Up to this time there has been available no comprehensive book describing, on a uniform and comprehensive level, the techniques and models used in radiological assessment. Radiological Assessment is based on material presented at the 1980 Health Physics Society Summer School held in Seattle, Washington. The material has been expanded and edited to make it comprehensive in scope and useful as a text. Topics covered include (1) source terms for nuclear facilities and Medical and Industrial sites; (2) transport of radionuclides in the atmosphere; (3) transport of radionuclides in surface waters; (4) transport of radionuclides in groundwater; (5) terrestrial and aquatic food chain pathways; (6) reference man; a system for internal dose calculations; (7) internal dosimetry; (8) external dosimetry; (9) models for special-case radionuclides; (10) calculation of health effects in irradiated populations; (11) evaluation of uncertainties in environmental radiological assessment models; (12) regulatory standards for environmental releases of radionuclides; (13) development of computer codes for radiological assessment; and (14) assessment of accidental releases of radionuclides.

  16. Development of solid radium-226 reference materials

    SciTech Connect

    Chessmore, R.B.; Engelder, P.R.; Sill, C.W.

    1983-11-01

    Radium-226 reference materials having a matrix similar to soil or tailings samples are not available in sufficient quantity for use by remedial-action contractors to calibrate their laboratory gamma-ray spectrometers. Such reference materials are needed to provide uniform standardization among measurements made by remedial-action contractors. A task, therefore, was undertaken to prepare about 200 pounds each of three different concentrations of radium-226 reference materials by diluting tailings with high-purity silica. Target values for radium-226 content were 50, 15, and 5 pCi/g. The radium-226 content of the reference materials was measured by C.W. Sill of EG and G Idaho, Inc., Idaho Falls, using a high- resolution alpha spectrometry technique standardized with National Bureau of Standards (NBS) standard 4961. A summary of this technique is provided in Appendix A of this report. An independent measurement of the radium-226 content was conducted by Bendix Field Engineering Corporation (Bendix), Grand Junction, Colorado, using a high-resolution Ge(Li) detector, which was calibrated using the New Brunswick Laboratory (NBL) 100-A Series standards. The Ge(Li) detector has also been used to determine the radium-226 content in the calibration models at the Grand Junction facility; these models are used by remedial-action contractors for calibration of borehole logging gamma-ray probes. 8 references, 12 tables.

  17. Code System for Emergency Response Dose Assessment.

    Energy Science and Technology Software Center

    2002-01-16

    Version: 00 A dose assessment model for emergency response applications. Dose pathways represented in the model are those that are most likely to be important during and immediately following a release (hours) rather than over an extended time frame (days or weeks). The doses computed include: external dose resulting from exposure to radiation emitted by radionuclides in the air and deposited on the ground, internal dose commitment resulting from inhalation, and total whole-body dose. Threemore » preprocessors are included. RSFPREP generates the MESORAD run specification (input) file, METWR creates the meteorological data file, and RELPREP prepares the release definition file. PRNT is a postprocessor for generating printer or screen-compatible output. All four programs run interactively. MESORAD was developed from version 2.0 of the MESOI atmospheric dispersion model (NESC 9862) retaining its modular nature.« less

  18. Early Internal and External Dose Magnitude Estimation

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Internal and External Dose Estimation (initial version: 08/2008, current version: 10/2015) Early Internal and External Dose Magnitude Estimation The Radiation Emergency Assistance Center/Training Site REAC/TS PO Box 117, MS-39 Oak Ridge, TN 37831 (865)576-3131 http://orise.orau.gov/reacts prepared by: Stephen L. (Steve) Sugarman, MS, CHP, CHCM Health Physics Project Manager Cytogenetic Biodosimetry Laboratory Coordinator Early Internal and External Dose Estimation (initial version: 08/2008,

  19. TriBITS Developers Guide and Reference

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    TriBITS Developers Guide and Reference Ross Bartlett Oak Ridge National Laboratory March 31, 2014 CASL-U-2014-0075-000-E CASL-U-2014-0075-000-b TriBITS Developers Guide and Reference Author: Roscoe A. Bartlett (bartlettra@ornl.gov) Abstract This document describes the usage of TriBITS to build, test, and deploy complex software. The primary audience are those individuals who develop on a software project which uses TriBITS. The overall structure of a TriBITS project is described including all of

  20. Ray Effect Mitigation Through Reference Frame Rotation

    DOE PAGES [OSTI]

    Tencer, John

    2016-05-01

    The discrete ordinates method is a popular and versatile technique for solving the radiative transport equation, a major drawback of which is the presence of ray effects. Mitigation of ray effects can yield significantly more accurate results and enhanced numerical stability for combined mode codes. Moreover, when ray effects are present, the solution is seen to be highly dependent upon the relative orientation of the geometry and the global reference frame. It is an undesirable property. A novel ray effect mitigation technique of averaging the computed solution for various reference frame orientations is proposed.

  1. ORISE: Radiation Dose Estimates and Other Compendia

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    rapidly estimate internal and external radiation dose magnitudes that can be used to help ... (PDF) Health Concerns Related to Radiation Exposure of the Female Nuclear Medicine ...

  2. Positional reference system for ultraprecision machining

    DOEpatents

    Arnold, Jones B.; Burleson, Robert R.; Pardue, Robert M.

    1982-01-01

    A stable positional reference system for use in improving the cutting tool-to-part contour position in numerical controlled-multiaxis metal turning machines is provided. The reference system employs a plurality of interferometers referenced to orthogonally disposed metering bars which are substantially isolated from machine strain induced position errors for monitoring the part and tool positions relative to the metering bars. A microprocessor-based control system is employed in conjunction with the plurality of position interferometers and part contour description data inputs to calculate error components for each axis of movement and output them to corresponding axis drives with appropriate scaling and error compensation. Real-time position control, operating in combination with the reference system, makes possible the positioning of the cutting points of a tool along a part locus with a substantially greater degree of accuracy than has been attained previously in the art by referencing and then monitoring only the tool motion relative to a reference position located on the machine base.

  3. Positional reference system for ultraprecision machining

    DOEpatents

    Arnold, J.B.; Burleson, R.R.; Pardue, R.M.

    1980-09-12

    A stable positional reference system for use in improving the cutting tool-to-part contour position in numerical controlled-multiaxis metal turning machines is provided. The reference system employs a plurality of interferometers referenced to orthogonally disposed metering bars which are substantially isolated from machine strain induced position errors for monitoring the part and tool positions relative to the metering bars. A microprocessor-based control system is employed in conjunction with the plurality of positions interferometers and part contour description data input to calculate error components for each axis of movement and output them to corresponding axis driven with appropriate scaling and error compensation. Real-time position control, operating in combination with the reference system, makes possible the positioning of the cutting points of a tool along a part locus with a substantially greater degree of accuracy than has been attained previously in the art by referencing and then monitoring only the tool motion relative to a reference position located on the machine base.

  4. Xyce parallel electronic simulator : reference guide.

    SciTech Connect

    Mei, Ting; Rankin, Eric Lamont; Thornquist, Heidi K.; Santarelli, Keith R.; Fixel, Deborah A.; Coffey, Todd Stirling; Russo, Thomas V.; Schiek, Richard Louis; Warrender, Christina E.; Keiter, Eric Richard; Pawlowski, Roger Patrick

    2011-05-01

    This document is a reference guide to the Xyce Parallel Electronic Simulator, and is a companion document to the Xyce Users Guide. The focus of this document is (to the extent possible) exhaustively list device parameters, solver options, parser options, and other usage details of Xyce. This document is not intended to be a tutorial. Users who are new to circuit simulation are better served by the Xyce Users Guide. The Xyce Parallel Electronic Simulator has been written to support, in a rigorous manner, the simulation needs of the Sandia National Laboratories electrical designers. It is targeted specifically to run on large-scale parallel computing platforms but also runs well on a variety of architectures including single processor workstations. It also aims to support a variety of devices and models specific to Sandia needs. This document is intended to complement the Xyce Users Guide. It contains comprehensive, detailed information about a number of topics pertinent to the usage of Xyce. Included in this document is a netlist reference for the input-file commands and elements supported within Xyce; a command line reference, which describes the available command line arguments for Xyce; and quick-references for users of other circuit codes, such as Orcad's PSpice and Sandia's ChileSPICE.

  5. SU-C-207-02: A Method to Estimate the Average Planar Dose From a C-Arm CBCT Acquisition

    SciTech Connect

    Supanich, MP

    2015-06-15

    Purpose: The planar average dose in a C-arm Cone Beam CT (CBCT) acquisition had been estimated in the past by averaging the four peripheral dose measurements in a CTDI phantom and then using the standard 2/3rds peripheral and 1/3 central CTDIw method (hereafter referred to as Dw). The accuracy of this assumption has not been investigated and the purpose of this work is to test the presumed relationship. Methods: Dose measurements were made in the central plane of two consecutively placed 16cm CTDI phantoms using a 0.6cc ionization chamber at each of the 4 peripheral dose bores and in the central dose bore for a C-arm CBCT protocol. The same setup was scanned with a circular cut-out of radiosensitive gafchromic film positioned between the two phantoms to capture the planar dose distribution. Calibration curves for color pixel value after scanning were generated from film strips irradiated at different known dose levels. The planar average dose for red and green pixel values was calculated by summing the dose values in the irradiated circular film cut out. Dw was calculated using the ionization chamber measurements and film dose values at the location of each of the dose bores. Results: The planar average dose using both the red and green pixel color calibration curves were within 10% agreement of the planar average dose estimated using the Dw method of film dose values at the bore locations. Additionally, an average of the planar average doses calculated using the red and green calibration curves differed from the ionization chamber Dw estimate by only 5%. Conclusion: The method of calculating the planar average dose at the central plane of a C-arm CBCT non-360 rotation by calculating Dw from peripheral and central dose bore measurements is a reasonable approach to estimating the planar average dose. Research Grant, Siemens AG.

  6. Radiation dose delivery verification in the treatment of carcinoma-cervix

    SciTech Connect

    Shrotriya, D. Srivastava, R. N. L.; Kumar, S.

    2015-06-24

    The accurate dose delivery to the clinical target volume in radiotherapy can be affected by various pelvic tissues heterogeneities. An in-house heterogeneous woman pelvic phantom was designed and used to verify the consistency and computational capability of treatment planning system of radiation dose delivery in the treatment of cancer cervix. Oncentra 3D-TPS with collapsed cone convolution (CCC) dose calculation algorithm was used to generate AP/PA and box field technique plan. the radiation dose was delivered by Primus Linac (Siemens make) employing high energy 15 MV photon beam by isocenter technique. A PTW make, 0.125cc ionization chamber was used for direct measurements at various reference points in cervix, bladder and rectum. The study revealed that maximum variation between computed and measured dose at cervix reference point was 1% in both the techniques and 3% and 4% variation in AP/PA field and 5% and 4.5% in box technique at bladder and rectum points respectively.

  7. An updated dose assessment for Rongelap Island

    SciTech Connect

    Robison, W.L.; Conrado, C.L.; Bogen, K.T.

    1994-07-01

    We have updated the radiological dose assessment for Rongelap Island at Rongelap Atoll using data generated from field trips to the atoll during 1986 through 1993. The data base used for this dose assessment is ten fold greater than that available for the 1982 assessment. Details of each data base are presented along with details about the methods used to calculate the dose from each exposure pathway. The doses are calculated for a resettlement date of January 1, 1995. The maximum annual effective dose is 0.26 mSv y{sup {minus}1} (26 mrem y{sup {minus}1}). The estimated 30-, 50-, and 70-y integral effective doses are 0.0059 Sv (0.59 rem), 0.0082 Sv (0.82 rem), and 0.0097 Sv (0.97 rem), respectively. More than 95% of these estimated doses are due to 137-Cesium ({sup 137}Cs). About 1.5% of the estimated dose is contributed by 90-Strontium ({sup 90}Sr), and about the same amount each by 239+240-Plutonium ({sup 239+240}PU), and 241-Americium ({sup 241}Am).

  8. TH-C-18A-08: A Management Tool for CT Dose Monitoring, Analysis, and Protocol Review

    SciTech Connect

    Wang, J; Chan, F; Newman, B; Larson, D; Leung, A; Fleischmann, D; Molvin, L; Marsh, D; Zorich, C; Phillips, L

    2014-06-15

    Purpose: To develop a customizable tool for enterprise-wide managing of CT protocols and analyzing radiation dose information of CT exams for a variety of quality control applications Methods: All clinical CT protocols implemented on the 11 CT scanners at our institution were extracted in digital format. The original protocols had been preset by our CT management team. A commercial CT dose tracking software (DoseWatch,GE healthcare,WI) was used to collect exam information (exam date, patient age etc.), scanning parameters, and radiation doses for all CT exams. We developed a Matlab-based program (MathWorks,MA) with graphic user interface which allows to analyze the scanning protocols with the actual dose estimates, and compare the data to national (ACR,AAPM) and internal reference values for CT quality control. Results: The CT protocol review portion of our tool allows the user to look up the scanning and image reconstruction parameters of any protocol on any of the installed CT systems among about 120 protocols per scanner. In the dose analysis tool, dose information of all CT exams (from 05/2013 to 02/2014) was stratified on a protocol level, and within a protocol down to series level, i.e. each individual exposure event. This allows numerical and graphical review of dose information of any combination of scanner models, protocols and series. The key functions of the tool include: statistics of CTDI, DLP and SSDE, dose monitoring using user-set CTDI/DLP/SSDE thresholds, look-up of any CT exam dose data, and CT protocol review. Conclusion: our inhouse CT management tool provides radiologists, technologists and administration a first-hand near real-time enterprise-wide knowledge on CT dose levels of different exam types. Medical physicists use this tool to manage CT protocols, compare and optimize dose levels across different scanner models. It provides technologists feedback on CT scanning operation, and knowledge on important dose baselines and thresholds.

  9. SU-E-T-215: Interactive Dose Shaping: Proof of Concept Study for Six Prostate Patients

    SciTech Connect

    Kamerling, CP; Ziegenhein, P; Oelfke, U; Sterzing, F

    2014-06-01

    Purpose: To provide a proof of concept study for IMRT treatment planning through interactive dose shaping (IDS) by utilising the respective tools to create IMRT treatment plans for six prostate patients. Methods: The IDS planning paradigm aims to perform interactive local dose adaptations of an IMRT plan without compromising already established valuable dose features in real-time. Various IDS tools are available in our in-house treatment planning software Dynaplan and were utilised to create IMRT treatment plans for six patients with an adeno-carcinoma of the prostate. The sequenced IDS treatment plans were compared to conventionally optimised clinically approved plans (9 beams, co-planar). The starting point consisted of open fields. The IDS tools were utilised to sculpt dose out of the rectum and bladder. For each patient, several IDS plans were created, with different trade-offs between organ sparing and target coverage. The reference dose distributions were imported into Dynaplan. For each patient, the IDS treatment plan with a similar or better trade-off between target coverage and OAR sparing was selected for plan evaluation, guided by a physician. Pencil beam dose calculation was performed on a grid with a voxel size of 1.95×1.95×2.0 mm{sup 3}. D98%, D2%, mean dose and dose-volume indicators as specified by Quantec were calculated for plan evaluation. Results: It was possible to utilise the software prototype to generate treatment plans for prostate patient geometries in 15–45 minutes. Individual local dose adaptations could be performed in less than one second. The average differences compared to the reference plans were for the mean dose: 0.0 Gy (boost) and 1.2 Gy (CTV), for D98%: −1.1 Gy and for D2%: 1.1 Gy (both target volumes). The dose-volume quality indicators were well below the Quantec constraints. Conclusion: Real-time treatment planning utilising IDS is feasible and has the potential to be implemented clinically. Research at The Institute of

  10. Reference electrode for strong oxidizing acid solutions

    DOEpatents

    Rigdon, Lester P.; Harrar, Jackson E.; Bullock, Sr., Jack C.; McGuire, Raymond R.

    1990-01-01

    A reference electrode for the measurement of the oxidation-reduction potentials of solutions is especially suitable for oxidizing solutions such as highly concentrated and fuming nitric acids, the solutions of nitrogen oxides, N.sub.2 O.sub.4 and N.sub.2 O.sub.5, in nitric acids. The reference electrode is fabricated of entirely inert materials, has a half cell of Pt/Ce(IV)/Ce(III)/70 wt. % HNO.sub.3, and includes a double-junction design with an intermediate solution of 70 wt. % HNO.sub.3. The liquid junctions are made from Corning No. 7930 glass for low resistance and negligible solution leakage.

  11. MO-E-17A-06: Organ Dose in Abdomen-Pelvis CT: Does TG 111 Equilibrium Dose Concept Better Accounts for KVp Dependence Than Conventional CTDI?

    SciTech Connect

    Li, X; Morgan, A; Davros, W; Dong, F; Primak, A; Segars, W

    2014-06-15

    Purpose: In CT imaging, a desirable quality assurance (QA) dose quantity should account for the dose variability across scan parameters and scanner models. Recently, AAPM TG 111 proposed to use equilibrium dose-pitch product, in place of CT dose index (CTDI100), for scan modes involving table translation. The purpose of this work is to investigate whether this new concept better accounts for the kVp dependence of organ dose than the conventional CTDI concept. Methods: The adult reference female extended cardiac-torso (XCAT) phantom was used for this study. A Monte Carlo program developed and validated for a 128-slice CT system (Definition Flash, Siemens Healthcare) was used to simulate organ dose for abdomenpelvis scans at five tube voltages (70, 80, 100, 120, 140 kVp) with a pitch of 0.8 and a detector configuration of 2x64x0.6 mm. The same Monte Carlo program was used to simulate CTDI100 and equilibrium dose-pitch product. For both metrics, the central and peripheral values were used together with helical pitch to calculate a volume-weighted average, i.e., CTDIvol and (Deq)vol, respectively. Results: While other scan parameters were kept constant, organ dose depended strongly on kVp; the coefficient of variation (COV) across the five kVp values ranged between 70–75% for liver, spleen, stomach, pancreas, kidneys, colon, small intestine, bladder, and ovaries, all of which were inside the primary radiation beam. One-way analysis of variance (ANOVA) for the effect of kVp was highly significant (p=3e−30). When organ dose was normalized by CTDIvol, the COV across the five kVp values reduced to 7–16%. The effect of kVp was still highly significant (p=4e−4). When organ dose was normalized by (Deq)vol, the COV further reduced to 4−12%. The effect of kVp was borderline significant (p=0.04). Conclusion: In abdomen-pelvis CT, TG 111 equilibrium dose concept better accounts for kVp dependence than the conventional CTDI. This work is supported by a faculty startup

  12. Reference reactor module for NASA's lunar surface fission power system

    SciTech Connect

    Poston, David I; Kapernick, Richard J; Dixon, David D; Werner, James; Qualls, Louis; Radel, Ross

    2009-01-01

    Surface fission power systems on the Moon and Mars may provide the first US application of fission reactor technology in space since 1965. The Affordable Fission Surface Power System (AFSPS) study was completed by NASA/DOE to determine the cost of a modest performance, low-technical risk surface power system. The AFSPS concept is now being further developed within the Fission Surface Power (FSP) Project, which is a near-term technology program to demonstrate system-level TRL-6 by 2013. This paper describes the reference FSP reactor module concept, which is designed to provide a net power of 40 kWe for 8 years on the lunar surface; note, the system has been designed with technologies that are fully compatible with a Martian surface application. The reactor concept uses stainless-steel based. UO{sub 2}-fueled, pumped-NaK fission reactor coupled to free-piston Stirling converters. The reactor shielding approach utilizes both in-situ and launched shielding to keep the dose to astronauts much lower than the natural background radiation on the lunar surface. The ultimate goal of this work is to provide a 'workhorse' power system that NASA can utilize in near-term and future Lunar and Martian mission architectures, with the eventual capability to evolve to very high power, low mass systems, for either surface, deep space, and/or orbital missions.

  13. Category:Smart Grid References | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Category Edit History Category:Smart Grid References Jump to: navigation, search Add a new Reference Pages in category "Smart Grid References" The following 11 pages are in this...

  14. Revised Analyses of Decommissioning Reference Non-Fuel-Cycle Facilities

    SciTech Connect

    MC Bierschbach; DR Haffner; KJ Schneider; SM Short

    2002-12-01

    Cost information is developed for the conceptual decommissioning of non-fuel-cycle nuclear facilities that represent a significant decommissioning task in terms of decontamination and disposal activities. This study is a re-evaluation of the original study (NUREG/CR-1754 and NUREG/CR-1754, Addendum 1). The reference facilities examined in this study are the same as in the original study and include: a laboratory for the manufacture of {sup 3}H-labeled compounds; a laboratory for the manufacture of {sup 14}C-labeled compounds; a laboratory for the manufacture of {sup 123}I-labeled compounds; a laboratory for the manufacture of {sup 137}Cs sealed sources; a laboratory for the manufacture of {sup 241}Am sealed sources; and an institutional user laboratory. In addition to the laboratories, three reference sites that require some decommissioning effort were also examined. These sites are: (1) a site with a contaminated drain line and hold-up tank; (2) a site with a contaminated ground surface; and (3) a tailings pile containing uranium and thorium residues. Decommissioning of these reference facilities and sites can be accomplished using techniques and equipment that are in common industrial use. Essentially the same technology assumed in the original study is used in this study. For the reference laboratory-type facilities, the study approach is to first evaluate the decommissioning of individual components (e.g., fume hoods, glove boxes, and building surfaces) that are common to many laboratory facilities. The information obtained from analyzing the individual components of each facility are then used to determine the cost, manpower requirements and dose information for the decommissioning of the entire facility. DECON, the objective of the 1988 Rulemaking for materials facilities, is the decommissioning alternative evaluated for the reference laboratories because it results in the release of the facility for restricted or unrestricted use as soon as possible. For a

  15. Development of Compact Gaseous Sensors with Internal Reference...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Compact Gaseous Sensors with Internal Reference for Monitoring O2 and NOx in Combustion Environments Development of Compact Gaseous Sensors with Internal Reference for Monitoring ...

  16. NPS Reference Manual 53: Special Park Uses | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    search OpenEI Reference LibraryAdd to library PermittingRegulatory Guidance - Inner-Office Memorandum: NPS Reference Manual 53: Special Park UsesPermittingRegulatory...

  17. Biomass Scenario Model Documentation: Data and References Lin...

    Office of Scientific and Technical Information (OSTI)

    Documentation: Data and References Lin, Y.; Newes, E.; Bush, B.; Peterson, S.; Stright, D. 09 BIOMASS FUELS BIOMASS SCENARIO MODEL; BSM; BIOMASS; BIOFUEL; MODEL; DATA; REFERENCES;...

  18. Operational Plan and Desktop Reference for the Disability Employment...

    Energy Saver

    Operational Plan and Desktop Reference for the Disability Employment Program Operational Plan and Desktop Reference for the Disability Employment Program The Department of Energy's ...

  19. Archive Reference Buildings by Climate Zone: 3A Atlanta, Georgia...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    More Documents & Publications Archive Reference Buildings by Climate Zone: 3B Los Angeles, California Archive Reference Buildings by Climate Zone: 3B Las Vegas, Nevada Archive ...

  20. University of Illinois uses Sandia Labs' reference hydrokinetic...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Illinois uses Sandia Labs' reference hydrokinetic turbine to study potential bed erosion ... University of Illinois uses Sandia Labs' reference hydrokinetic turbine to study potential ...

  1. Renewable Energy Economic and Financial Analysis Terms of Reference...

    OpenEI (Open Energy Information) [EERE & EIA]

    Analysis Terms of Reference Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Renewable Energy Economic and Financial Analysis Terms of Reference AgencyCompany...

  2. Renewable Energy Pipeline Development Terms of Reference | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    Development Terms of Reference Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Renewable Energy Pipeline Development Terms of Reference AgencyCompany Organization:...

  3. Renewable Energy Business Development Terms of Reference | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    Development Terms of Reference Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Renewable Energy Business Development Terms of Reference AgencyCompany Organization:...

  4. 2014 Annual Merit Review Results Report - Cross-reference of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Cross-reference of Project Investigators, Projects, and Organizations 2014 Annual Merit Review Results Report - Cross-reference of Project Investigators, Projects, and ...

  5. 2012 Annual Merit Review Results Report - Cross-Reference of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Cross-Reference of Project Investigtors, Projects, and Organizations 2012 Annual Merit Review Results Report - Cross-Reference of Project Investigtors, Projects, and Organizations ...

  6. 2013 Annual Merit Review Results Report - Cross-Reference of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Cross-Reference of Project Investigators, Projects, and Organizations 2013 Annual Merit Review Results Report - Cross-Reference of Project Investigators, Projects, and ...

  7. 2008 Annual Merit Review Results Summary - 18. Cross-Reference...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    8. Cross-Reference of Project Investigators, Projects, and Organizations 2008 Annual Merit Review Results Summary - 18. Cross-Reference of Project Investigators, Projects, and ...

  8. Terms of Reference for the International Partnership for the...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Terms of Reference for the International Partnership for the Hydrogen Economy Terms of Reference for the International Partnership for the Hydrogen Economy Updated version (October ...

  9. EERE Program Management Quick Reference Guide | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Quick Reference Guide EERE Program Management Quick Reference Guide Provides information on the EERE program management structure, program and project management roles...

  10. Detailed HCCI Exhaust Speciation - ORNL Reference Fuel Blends...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    HCCI Exhaust Speciation - ORNL Reference Fuel Blends Detailed HCCI Exhaust Speciation - ORNL Reference Fuel Blends *Accurately measure exhaust profile from an HCCI engine with a ...

  11. United States Department of the Interior - RM-53 - Reference...

    OpenEI (Open Energy Information) [EERE & EIA]

    OpenEI Reference LibraryAdd to library PermittingRegulatory Guidance - GuideHandbook: United States Department of the Interior - RM-53 - Reference Manual - Special Park...

  12. Radiological Dose Calculations for Fusion Facilities

    SciTech Connect

    Michael L. Abbott; Lee C. Cadwallader; David A. Petti

    2003-04-01

    This report summarizes the results and rationale for radiological dose calculations for the maximally exposed individual during fusion accident conditions. Early doses per unit activity (Sieverts per TeraBecquerel) are given for 535 magnetic fusion isotopes of interest for several release scenarios. These data can be used for accident assessment calculations to determine if the accident consequences exceed Nuclear Regulatory Commission and Department of Energy evaluation guides. A generalized yearly dose estimate for routine releases, based on 1 Terabecquerel unit releases per radionuclide, has also been performed using averaged site parameters and assumed populations. These routine release data are useful for assessing designs against US Environmental Protection Agency yearly release limits.

  13. Draft Air Pathway Report: Phase 1 of the Hanford Environmental Dose Reconstruction Project

    SciTech Connect

    Not Available

    1990-07-20

    This report summarizes the air pathway portion of the first phase of the Hanford Environmental Dose Reconstruction (HEDR) Project, conducted by Battelle staff at the Pacific Northwest Laboratory under the direction of an independent Technical Steering Panel. The HEDR Project is estimating historical radiation doses that could have been received by populations near the Department of Energy's Hanford Site, in southeastern Washington State. Phase 1 of the air-pathway dose reconstruction sought to determine whether dose estimates could be calculated for populations in the 10 counties nearest the Hanford Site from atmospheric releases of iodine-131 from the site from 1944--1947. Phase 1 demonstrated the following: HEDR-calculated source-term estimates of iodine-131 releases to the atmosphere were within 20% of previously published estimates; calculated vegetation concentrations of iodine-131 agree well with previously published measurements; the highest of the Phase 1 preliminary dose estimates to the thyroid are consistent with independent, previously published estimates of doses to maximally exposed individuals; and relatively crude, previously published measurements of thyroid burdens for Hanford workers are in the range of average burdens that the HEDR model estimated for similar reference individuals'' for the period 1944--1947. 4 refs., 10 figs., 9 tabs.

  14. Hanford Environmental Dose Reconstruction Project. Monthly report

    SciTech Connect

    McMakin, A.H.; Cannon, S.D.; Finch, S.M.

    1992-07-01

    The objective of the Hanford Environmental Dose Reconstruction (HEDR) Project is to estimate the radiation doses that individuals and populations could have received from nuclear operations at Hanford since 1944. The TSP consists of experts in environmental pathways, epidemiology, surface-water transport, ground-water transport, statistics, demography, agriculture, meteorology, nuclear engineering, radiation dosimetry, and cultural anthropology. Included are appointed technical members representing the states of Oregon, Washington, and Idaho, a representative of Native American tribes, and an individual representing the public. The project is divided into the following technical tasks. These tasks correspond to the path radionuclides followed from release to impact on humans (dose estimates): Source terms, environmental transport, environmental monitoring data, demography, food consumption, and agriculture, and environmental pathways and dose estimates. Progress is discussed.

  15. Hanford Environmental Dose Reconstruction Project monthly report

    SciTech Connect

    McMakin, A.H., Cannon, S.D.; Finch, S.M.

    1992-09-01

    The objective of the Hanford Environmental Dose Reconstruction MDR) Project is to estimate the radiation doses that individuals and populations could have received from nuclear operations at Hanford since 1944. The TSP consists of experts in envirorunental pathways. epidemiology, surface-water transport, ground-water transport, statistics, demography, agriculture, meteorology, nuclear engineering. radiation dosimetry. and cultural anthropology. Included are appointed members representing the states of Oregon, Washington, and Idaho, a representative of Native American tribes, and an individual representing the public. The project is divided into the following technical tasks. These tasks correspond to the path radionuclides followed from release to impact on humans (dose estimates): Source Terms; Environmental Transport; Environmental Monitoring Data Demography, Food Consumption, and Agriculture; and Environmental Pathways and Dose Estimates.

  16. 2014 Manufacturing Energy and Carbon Footprints: References

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    References 21 st Century Truck Partnership. 2013. Roadmap and Technical White Papers. http://www1.eere.energy.gov/vehiclesandfuels/pdfs/program/21ctp_roadmap_white_papers_2013.pdf ACEEE (American Council for an Energy-Efficient Economy). 2012. "Water Heating." http://aceee.org/consumer/water-heating Actel. 2009. Motor Efficiency Depends Upon Power Factor. http://www.actel.com/documents/Motor_PowerFactor_WP.pdf Ahmed, Ludna. 2011. Chlor-Alkali Industries: Caustic soda, Chlorine, Soda

  17. Coal Data: A reference. [Contains Glossary

    SciTech Connect

    Not Available

    1991-11-26

    The purpose of Coal Data: A Reference is to provide basic information on the mining and use of coal, an important source of energy in the United States. The report is written for a general audience. The goal is to cover basic material and strike a reasonable compromise between overly generalized statements and detailed analyses. The section Coal Terminology and Related Information'' provides additional information about terms mentioned in the text and introduces new terms. Topics covered are US coal deposits, resources and reserves, mining, production, employment and productivity, health and safety, preparation, transportation, supply and stocks, use, coal, the environment, and more. (VC)

  18. Department of Energy Construction Safety Reference Guide

    SciTech Connect

    Not Available

    1993-09-01

    DOE has adopted the Occupational Safety and Health Administration (OSHA) regulations Title 29 Code of Federal Regulations (CFR) 1926 ``Safety and Health Regulations for Construction,`` and related parts of 29 CFR 1910, ``Occupational Safety and Health Standards.`` This nonmandatory reference guide is based on these OSHA regulations and, where appropriate, incorporates additional standards, codes, directives, and work practices that are recognized and accepted by DOE and the construction industry. It covers excavation, scaffolding, electricity, fire, signs/barricades, cranes/hoists/conveyors, hand and power tools, concrete/masonry, stairways/ladders, welding/cutting, motor vehicles/mechanical equipment, demolition, materials, blasting, steel erection, etc.

  19. A generic high-dose rate {sup 192}Ir brachytherapy source for evaluation of model-based dose calculations beyond the TG-43 formalism

    SciTech Connect

    Ballester, Facundo; Carlsson Tedgren, sa; Granero, Domingo; Haworth, Annette; Mourtada, Firas; Fonseca, Gabriel Paiva; Rivard, Mark J.; Siebert, Frank-Andr; Sloboda, Ron S.; and others

    2015-06-15

    Purpose: In order to facilitate a smooth transition for brachytherapy dose calculations from the American Association of Physicists in Medicine (AAPM) Task Group No. 43 (TG-43) formalism to model-based dose calculation algorithms (MBDCAs), treatment planning systems (TPSs) using a MBDCA require a set of well-defined test case plans characterized by Monte Carlo (MC) methods. This also permits direct dose comparison to TG-43 reference data. Such test case plans should be made available for use in the software commissioning process performed by clinical end users. To this end, a hypothetical, generic high-dose rate (HDR) {sup 192}Ir source and a virtual water phantom were designed, which can be imported into a TPS. Methods: A hypothetical, generic HDR {sup 192}Ir source was designed based on commercially available sources as well as a virtual, cubic water phantom that can be imported into any TPS in DICOM format. The dose distribution of the generic {sup 192}Ir source when placed at the center of the cubic phantom, and away from the center under altered scatter conditions, was evaluated using two commercial MBDCAs [Oncentra{sup } Brachy with advanced collapsed-cone engine (ACE) and BrachyVision ACUROS{sup TM}]. Dose comparisons were performed using state-of-the-art MC codes for radiation transport, including ALGEBRA, BrachyDose, GEANT4, MCNP5, MCNP6, and PENELOPE2008. The methodologies adhered to recommendations in the AAPM TG-229 report on high-energy brachytherapy source dosimetry. TG-43 dosimetry parameters, an along-away dose-rate table, and primary and scatter separated (PSS) data were obtained. The virtual water phantom of (201){sup 3} voxels (1 mm sides) was used to evaluate the calculated dose distributions. Two test case plans involving a single position of the generic HDR {sup 192}Ir source in this phantom were prepared: (i) source centered in the phantom and (ii) source displaced 7 cm laterally from the center. Datasets were independently produced by

  20. Radiation Leukemogenesis at Low Dose Rates

    SciTech Connect

    Weil, Michael; Ullrich, Robert

    2013-09-25

    The major goals of this program were to study the efficacy of low dose rate radiation exposures for the induction of acute myeloid leukemia (AML) and to characterize the leukemias that are caused by radiation exposures at low dose rate. An irradiator facility was designed and constructed that allows large numbers of mice to be irradiated at low dose rates for protracted periods (up to their life span). To the best of our knowledge this facility is unique in the US and it was subsequently used to study radioprotectors being developed for radiological defense (PLoS One. 7(3), e33044, 2012) and is currently being used to study the role of genetic background in susceptibility to radiation-induced lung cancer. One result of the irradiation was expected; low dose rate exposures are ineffective in inducing AML. However, another result was completely unexpected; the irradiated mice had a very high incidence of hepatocellular carcinoma (HCC), approximately 50%. It was unexpected because acute exposures are ineffective in increasing HCC incidence above background. This is a potential important finding for setting exposure limits because it supports the concept of an 'inverse dose rate effect' for some tumor types. That is, for the development of some tumor types low dose rate exposures carry greater risks than acute exposures.

  1. SU-E-J-141: Activity-Equivalent Path Length Approach for the 3D PET-Based Dose Reconstruction in Proton Therapy

    SciTech Connect

    Attili, A; Vignati, A; Giordanengo, S; Kraan, A; Dalmasso, F; Battistoni, G

    2015-06-15

    Purpose: Ion beam therapy is sensitive to uncertainties from treatment planning and dose delivery. PET imaging of induced positron emitter distributions is a practical approach for in vivo, in situ verification of ion beam treatments. Treatment verification is usually done by comparing measured activity distributions with reference distributions, evaluated in nominal conditions. Although such comparisons give valuable information on treatment quality, a proper clinical evaluation of the treatment ultimately relies on the knowledge of the actual delivered dose. Analytical deconvolution methods relating activity and dose have been studied in this context, but were not clinically applied. In this work we present a feasibility study of an alternative approach for dose reconstruction from activity data, which is based on relating variations in accumulated activity to tissue density variations. Methods: First, reference distributions of dose and activity were calculated from the treatment plan and CT data. Then, the actual measured activity data were cumulatively matched with the reference activity distributions to obtain a set of activity-equivalent path lengths (AEPLs) along the rays of the pencil beams. Finally, these AEPLs were used to deform the original dose distribution, yielding the actual delivered dose. The method was tested by simulating a proton therapy treatment plan delivering 2 Gy on a homogeneous water phantom (the reference), which was compared with the same plan delivered on a phantom containing inhomogeneities. Activity and dose distributions were were calculated by means of the FLUKA Monte Carlo toolkit. Results: The main features of the observed dose distribution in the inhomogeneous situation were reproduced using the AEPL approach. Variations in particle range were reproduced and the positions, where these deviations originated, were properly identified. Conclusions: For a simple inhomogeneous phantom the 3D dose reconstruction from PET

  2. A work bibliography on native food consumption, demography and lifestyle. Hanford Environmental Dose Reconstruction Project

    SciTech Connect

    Murray, C.E.; Lee, W.J.

    1992-12-01

    The purpose of this report is to provide a bibliography for the Native American tribe participants in the Hanford Environmental Dose Reconstruction (HEDR) Project to use. The HEDR Project`s primary objective is to estimate the radiation dose that individuals could have received as a result of emissions since 1944 from the US Department of Energy`s Hanford Site near Richland, Washington. Eight Native American tribes are responsible for estimating daily and seasonal consumption of traditional foods, demography, and other lifestyle factors that could have affected the radiation dose received by tribal members. This report provides a bibliography of recorded accounts that tribal researchers may use to verify their estimates. The bibliographic citations include references to information on the specific tribes, Columbia River plateau ethnobotany, infant feeding practices and milk consumption, nutritional studies and radiation, tribal economic and demographic characteristics (1940--1970), research methods, primary sources from the National Archives, regional archives, libraries, and museums.

  3. Generic Argillite/Shale Disposal Reference Case

    SciTech Connect

    Zheng, Liange; Colon, Carlos Jové; Bianchi, Marco; Birkholzer, Jens

    2014-08-08

    properties (parameters) used in these models are different, which not only make inter-model comparisons difficult, but also compromise the applicability of the lessons learned from one model to another model. The establishment of a reference case would therefore be helpful to set up a baseline for model development. A generic salt repository reference case was developed in Freeze et al. (2013) and the generic argillite repository reference case is presented in this report. The definition of a reference case requires the characterization of the waste inventory, waste form, waste package, repository layout, EBS backfill, host rock, and biosphere. This report mainly documents the processes in EBS bentonite and host rock that are potentially important for performance assessment and properties that are needed to describe these processes, with brief description other components such as waste inventory, waste form, waste package, repository layout, aquifer, and biosphere. A thorough description of the generic argillite repository reference case will be given in Jové Colon et al. (2014).

  4. SU-E-T-27: A Tool for Routine Quality Assurance of Radiotherapy Dose Calculation Software

    SciTech Connect

    Popple, R; Cardan, R; Duan, J; Wu, X; Shen, S; Brezovich, I

    2014-06-01

    Purpose: Dose calculation software is thoroughly evaluated when it is commissioned; however, evaluation of periodic software updates is typically limited in scope due to staffing constraints and the need to quickly return the treatment planning system to clinical service. We developed a tool for quickly and comprehensively testing and documenting dose calculation software against measured data. Methods: A tool was developed using MatLab (The MathWorks, Natick, MA) for evaluation of dose calculation algorithms against measured data. Inputs to the tool are measured data, reference DICOM RT PLAN files describing the measurements, and dose calculations in DICOM format. The tool consists of a collection of extensible modules that can perform analysis of point dose, depth dose curves, and profiles using dose difference, distance-to-agreement, and the gamma-index. Each module generates a report subsection that is incorporated into a master template, which is converted to final form in portable document format (PDF). Results: After each change to the treatment planning system, a report can be generated in approximately 90 minutes. The tool has been in use for more than 5 years, spanning 5 versions of the eMC and 4 versions of the AAA. We have detected changes to the algorithms that affected clinical practice once during this period. Conclusion: Our tool provides an efficient method for quality assurance of dose calculation software, providing a complete set of tests for an update. Future work includes the addition of plan level tests, allowing incorporation of, for example, the TG-119 test suite for IMRT, and integration with the treatment planning system via an application programming interface. Integration with the planning system will permit fully-automated testing and reporting at scheduled intervals.

  5. Relevance of biotic pathways to the long-term regulation of nuclear-waste disposal. Topical report on reference western arid low-level sites

    SciTech Connect

    McKenzie, D.H.; Cadwell, L.L.; Eberhardt, L.E.; Kennedy, W.E. Jr.; Peloquin, R.A.; Simmons, M.A.

    1982-10-01

    The purpose of the work reported here was to develop an order of magnitude estimate for the potential dose to man resulting from biotic transport mechanisms at a reference western arid low-level waste site. A description of the reference site is presented that includes the waste inventories, site characteristics and biological communities. Parameter values for biotic transport processes are based on data reported in current literature. Transport and exposure scenarios are developed for assessing biotic transport during 100 years following site closure. Calculations of radionuclide decay and waste container decomposition are made to estimate the quantities available for biotic transport. Dose to a man occupying the reference site following the 100 years of biotic transport are calculated. These dose estimates are compared to dose estimates for the intruder-agricultural scenario reported in the DEIS for 10 CFR 61 (NRC). Dose to man estimates as a result of biotic transport are estimated to be of the same order of magnitude as the dose resulting from the more commonly evaluated human intrusion scenario. The reported lack of potential importance of biotic transport at low-level waste sites in earlier assessment studies is not confirmed by the findings presented in this report. These results indicate that biotic transport has the potential to influence low-level waste site performance. Through biotic transport, radionuclides may be moved to locations where they can enter exposure pathways to man.

  6. Relevance of biotic pathways to the long-term regulation of nuclear waste disposal. Topical report on reference eastern humid low-level sites

    SciTech Connect

    McKenzie, D.H.; Cadwell, L.L.; Eberhardt, L.E.; Kennedy, W.E. Jr.; Peloquin, R.A.; Simmons, M.A.

    1983-01-01

    The purpose of the work reported here was to develop an order-of-magnitude estimate for the potential dose to man resulting from biotic transport mechanisms at a humid reference low-level waste site in the eastern US. A description of the reference site is presented that includes the waste inventories, site characteristics and biological communites. Parameter values for biotic transport processes are based on data reported in current literature. Transport and exposure scenarios are developed for assessing biotic transport during 500 years following site closure. Calculations of radionuclide decay and waste container decomposition are made to estimate the quantities available for biotic transport. Doses to man are calculated for the biological transport of radionucludes at the reference site after loss of institutional control. These dose estimates are compared to dose estimates we calculated for the intruder-agricultural scenarios reported in the DEIS for 10 CFR 61 (NRC). Dose to man estimates as a result of cumulative biotic transport are calculated to be of the same order-of-magnitude as the dose resulting from the more commonly evaluated human intrusion scenario. The reported lack of potential importance of biotic transport at low-level waste sites in earlier assessment studies is not confirmed by findings presented in this report. Through biotic transport, radionuclides can be moved to locations where they can enter exposure pathways to man.

  7. External dose-rate conversion factors for calculation of dose to the public

    SciTech Connect

    Not Available

    1988-07-01

    This report presents a tabulation of dose-rate conversion factors for external exposure to photons and electrons emitted by radionuclides in the environment. This report was prepared in conjunction with criteria for limiting dose equivalents to members of the public from operations of the US Department of Energy (DOE). The dose-rate conversion factors are provided for use by the DOE and its contractors in performing calculations of external dose equivalents to members of the public. The dose-rate conversion factors for external exposure to photons and electrons presented in this report are based on a methodology developed at Oak Ridge National Laboratory. However, some adjustments of the previously documented methodology have been made in obtaining the dose-rate conversion factors in this report. 42 refs., 1 fig., 4 tabs.

  8. FAQS Reference Guide - Waste Management | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Waste Management FAQS Reference Guide - Waste Management This reference guide addresses the competency statements in the January 2003 edition of DOE-STD-1159-2003, Waste Management Functional Area Qualification Standard. Waste Management Qualification Standard Reference Guide, August 2010 (3.9 MB) More Documents & Publications FAQS Reference Guide - Environmental Restoration DOE-HDBK-1018/2-93 FAQS Reference Guide - Facility Representative

  9. 2010 Manufacturing Energy and Carbon Footprints: References | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy References 2010 Manufacturing Energy and Carbon Footprints: References This five-page document provides the references to the Manufacturing Energy and Carbon Footprints (MECS 2010) References for the Manufacturing Energy and Carbon Footprints (MECS 2010) (265.96 KB) More Documents & Publications Manufacturing Energy and Carbon Footprint References 2010 Manufacturing Energy and Carbon Footprints: Definitions and Assumptions User Experience Research Templates and Examples: Card

  10. Estimating Radiation Risk from Total Effective Dose Equivalent...

    National Nuclear Security Administration (NNSA)

    of Dose to the Public, DOE Report DOEEH-0070, July 1988. DOE, 1988b. Internal Dose Conversion Factors for Calculation of Dose to the Public, DOE Report DOEEH-0071, July 1988. ...

  11. WECC Variable Generation Planning Reference Book

    SciTech Connect

    Makarov, Yuri V.; Du, Pengwei; Etingov, Pavel V.; Ma, Jian; Vyakaranam, Bharat

    2013-05-14

    This planning reference book is a document reflecting a Western Electricity Coordination Council (WECC) effort to put together multiple sources of information and provide a clear, systemic, comprehensive outline of the problems, both existing and anticipated; their impacts on the system; currently used and proposed solutions by the industry and research community; planning practices; new technologies, equipment, and standards; and expected future trends. This living (periodically updated) document could help WECC and other practicing engineers, especially the younger generation of engineers joining the workforce, to get familiar with a large variety of information related to the integration of variable resources into the WECC system, bypassing in part the need for time-consuming information gathering and learning processes from more experienced engineers or from the literature.

  12. ACAA fly ash basics: quick reference card

    SciTech Connect

    2006-07-01

    Fly ash is a fine powdery material created when coal is burned to generate electricity. Before escaping into the environment via the utility stacks, the ash is collected and may be stored for beneficial uses or disposed of, if necessary. The use of fly ash provides environmental benefits, such as the conservation of natural resources, the reduction of greenhouse gas emissions and eliminating the needed for ash disposal in landfills. It is also a valuable mineral resource that is used in construction and manufacturing. Fly ash is used in the production of Portland cement, concrete, mortars and stuccos, manufactured aggregates along with various agricultural applications. As mineral filler, fly ash can be used for paints, shingles, carpet backing, plastics, metal castings and other purposes. This quick reference card is intended to provide the reader basic source, identification and composition, information specifically related to fly ash.

  13. Semantic Features for Classifying Referring Search Terms

    SciTech Connect

    May, Chandler J.; Henry, Michael J.; McGrath, Liam R.; Bell, Eric B.; Marshall, Eric J.; Gregory, Michelle L.

    2012-05-11

    When an internet user clicks on a result in a search engine, a request is submitted to the destination web server that includes a referrer field containing the search terms given by the user. Using this information, website owners can analyze the search terms leading to their websites to better understand their visitors needs. This work explores some of the features that can be used for classification-based analysis of such referring search terms. We present initial results for the example task of classifying HTTP requests countries of origin. A system that can accurately predict the country of origin from query text may be a valuable complement to IP lookup methods which are susceptible to the obfuscation of dereferrers or proxies. We suggest that the addition of semantic features improves classifier performance in this example application. We begin by looking at related work and presenting our approach. After describing initial experiments and results, we discuss paths forward for this work.

  14. Agriculture-related radiation dose calculations

    SciTech Connect

    Furr, J.M.; Mayberry, J.J.; Waite, D.A.

    1987-10-01

    Estimates of radiation dose to the public must be made at each stage in the identification and qualification process leading to siting a high-level nuclear waste repository. Specifically considering the ingestion pathway, this paper examines questions of reliability and adequacy of dose calculations in relation to five stages of data availability (geologic province, region, area, location, and mass balance) and three methods of calculation (population, population/food production, and food production driven). Calculations were done using the model PABLM with data for the Permian and Palo Duro Basins and the Deaf Smith County area. Extra effort expended in gathering agricultural data at succeeding environmental characterization levels does not appear justified, since dose estimates do not differ greatly; that effort would be better spent determining usage of food types that contribute most to the total dose; and that consumption rate and the air dispersion factor are critical to assessment of radiation dose via the ingestion pathway. 17 refs., 9 figs., 32 tabs.

  15. Hanford Environmental Dose Reconstruction Project. Monthly report

    SciTech Connect

    Finch, S. M.; McMakin, A. H.

    1991-09-01

    The objective of the Hanford Environmental Dose Reconstruction Project is to estimate the radiation dose that individuals and populations could have received from nuclear operations at Hanford since 1944. The project is divided into five technical tasks. These tasks correspond to the path radionuclides followed, from release to impact on humans (i.e., dose estimates). The Source Terms Task develops estimates of radioactive emissions from Hanford facilities since 1944. The Environmental Transport Task reconstructs the movements of radioactive particles from the areas of release to populations. The Environmental Monitoring Data Task assemblies, evaluates and reports historical environmental monitoring data. The Demographics, Agriculture and Food Habits Task develops the data needed to identify the populations that could have been affected by the releases. The Environmental Pathways and Dose Estimates Task used the information derived from the other Tasks to estimate the radiation doses individuals could have received from Hanford radiation. This document lists the progress on this project as of September 1991. 3 figs., 2 tabs.

  16. RADIATION DOSE ESTIMATES TO ADULTS AND CHILDREN FROM VARIOUS

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    RADIATION DOSE ESTIMATES TO ADULTS AND CHILDREN FROM VARIOUS RADIOPHARMACEUTICALS Latest Revision Date: 43096 Radiation Internal Dose Information Center Oak Ridge Institute for ...

  17. Toward Dose Optimization for Fractionated Stereotactic Radiotherapy for Acoustic Neuromas: Comparison of Two Dose Cohorts

    SciTech Connect

    Andrews, David W. Werner-Wasik, Maria; Den, Robert B.; Paek, Sun Ha; Downes-Phillips, Beverly; Willcox, Thomas O.; Bednarz, Greg; Maltenfort, Mitchel; Evans, James J.; Curran, Walter J.

    2009-06-01

    Purpose: To describe our initial experience of fractionated stereotactic radiotherapy dose reduction comparing two dose cohorts with examination of tumor control rates and serviceable hearing preservation rates. Methods and Materials: After institutional review board approval, we initiated a retrospective chart review to study the hearing outcomes and tumor control rates. All data were entered into a JMP, version 7.01, statistical spreadsheet for analysis. Results: A total of 89 patients with serviceable hearing had complete serial audiometric data available for analysis. The higher dose cohort included 43 patients treated to 50.4 Gy with a median follow-up (latest audiogram) of 53 weeks and the lower dose cohort included 46 patients treated to 46.8 Gy with a median follow-up of 65 weeks. The tumor control rate was 100% in both cohorts, and the pure tone average was significantly improved in the low-dose cohort (33 dB vs. 40 dB, p = 0.023, chi-square). When the patient data were analyzed at comparable follow-up points, the actuarial hearing preservation rate was significantly longer for the low-dose cohort than for the high-dose cohort (165 weeks vs. 79 weeks, p = .0318, log-rank). Multivariate analysis revealed the dose cohort (p = 0.0282) and pretreatment Gardner-Robertson class (p = 0.0215) to be highly significant variables affecting the hearing outcome. Conclusion: A lower total dose at 46.8 Gy was associated with a 100% local control tumor rate and a greater hearing preservation rate. An additional dose reduction is justified to achieve the optimal dose that will yield the greatest hearing preservation rate without compromising tumor control for these patients.

  18. Determination of prescription dose for Cs-131 permanent implants using the BED formalism including resensitization correction

    SciTech Connect

    Luo, Wei Molloy, Janelle; Aryal, Prakash; Feddock, Jonathan; Randall, Marcus

    2014-02-15

    Purpose: The current widely used biological equivalent dose (BED) formalism for permanent implants is based on the linear-quadratic model that includes cell repair and repopulation but not resensitization (redistribution and reoxygenation). The authors propose a BED formalism that includes all the four biological effects (4Rs), and the authors propose how it can be used to calculate appropriate prescription doses for permanent implants with Cs-131. Methods: A resensitization correction was added to the BED calculation for permanent implants to account for 4Rs. Using the same BED, the prescription doses with Au-198, I-125, and Pd-103 were converted to the isoeffective Cs-131 prescription doses. The conversion factor F, ratio of the Cs-131 dose to the equivalent dose with the other reference isotope (F{sub r}: with resensitization, F{sub n}: without resensitization), was thus derived and used for actual prescription. Different values of biological parameters such as α, β, and relative biological effectiveness for different types of tumors were used for the calculation. Results: Prescription doses with I-125, Pd-103, and Au-198 ranging from 10 to 160 Gy were converted into prescription doses with Cs-131. The difference in dose conversion factors with (F{sub r}) and without (F{sub n}) resensitization was significant but varied with different isotopes and different types of tumors. The conversion factors also varied with different doses. For I-125, the average values of F{sub r}/F{sub n} were 0.51/0.46, for fast growing tumors, and 0.88/0.77 for slow growing tumors. For Pd-103, the average values of F{sub r}/F{sub n} were 1.25/1.15 for fast growing tumors, and 1.28/1.22 for slow growing tumors. For Au-198, the average values of F{sub r}/F{sub n} were 1.08/1.25 for fast growing tumors, and 1.00/1.06 for slow growing tumors. Using the biological parameters for the HeLa/C4-I cells, the averaged value of F{sub r} was 1.07/1.11 (rounded to 1.1), and the averaged value of F

  19. Radiotherapy Dose Fractionation under Parameter Uncertainty

    SciTech Connect

    Davison, Matt; Kim, Daero; Keller, Harald

    2011-11-30

    In radiotherapy, radiation is directed to damage a tumor while avoiding surrounding healthy tissue. Tradeoffs ensue because dose cannot be exactly shaped to the tumor. It is particularly important to ensure that sensitive biological structures near the tumor are not damaged more than a certain amount. Biological tissue is known to have a nonlinear response to incident radiation. The linear quadratic dose response model, which requires the specification of two clinically and experimentally observed response coefficients, is commonly used to model this effect. This model yields an optimization problem giving two different types of optimal dose sequences (fractionation schedules). Which fractionation schedule is preferred depends on the response coefficients. These coefficients are uncertainly known and may differ from patient to patient. Because of this not only the expected outcomes but also the uncertainty around these outcomes are important, and it might not be prudent to select the strategy with the best expected outcome.

  20. Historical river flow rates for dose calculations

    SciTech Connect

    Carlton, W.H.

    1991-06-10

    Annual average river flow rates are required input to the LADTAP Computer Code for calculating offsite doses from liquid releases of radioactive materials to the Savannah River. The source of information on annual river flow rates used in dose calculations varies, depending on whether calculations are for retrospective releases or prospective releases. Examples of these types of releases are: Retrospective - releases from routine operations (annual environmental reports) and short term release incidents that have occurred. Prospective - releases that might be expected in the future from routine or abnormal operation of existing or new facilities (EIS`s, EID`S, SAR`S, etc.). This memorandum provides historical flow rates at the downstream gauging station at Highway 301 for use in retrospective dose calculations and derives flow rate data for the Beaufort-Jasper and Port Wentworth water treatment plants.

  1. Air pathway report: Phase I of the Hanford Environmental Dose Reconstruction Project

    SciTech Connect

    Not Available

    1991-07-01

    Phase 1 of the air-pathway portion of the Hanford Environmental Dose Reconstruction (HEDR) Project sought to determine whether dose estimates could be calculated for populations in the 10 counties nearest the Hanford Site from atmospheric releases of iodine-131 from the site from 1944--1947. Phase 1 demonstrated the following: HEDR-calculated source-term estimates of iodine-131 releases to the atmosphere were within 20% of previously published estimates; calculated vegetation concentrations of iodine-131 agree well with previously published measurements; the highest of the Phase 1 preliminary dose estimates to the thyroid are consistent with independent, previously published estimates of doses to maximally exposed individuals; and, relatively crude, previously published measurements of thyroid burdens for Hanford workers are in the range of average burdens that the HEDR model estimated for similar reference individuals'' for the period 1944--1947. Preliminary median dose estimates summed over the year 1945--1947 for the primary pathway, air-pasture-cow-milk-thyroid, ranged from low median values of 0.006 rad for upwind adults who obtained milk from backyard cows not on pasture to high median values of 68.0 rad for downwind infants who drank milk from pasture-fed cows. Extremes of the estimated range are a low of essentially zero to upwind adults and a high of almost 3000 rem to downwind infants. 37 refs., 37 figs., 2 tabs.

  2. CRYSTALLINE CERAMIC WASTE FORMS: REFERENCE FORMULATION REPORT

    SciTech Connect

    Brinkman, K.; Fox, K.; Marra, J.

    2012-05-15

    The research conducted in this work package is aimed at taking advantage of the long term thermodynamic stability of crystalline ceramics to create more durable waste forms (as compared to high level waste glass) in order to reduce the reliance on engineered and natural barrier systems. Durable ceramic waste forms that incorporate a wide range of radionuclides have the potential to broaden the available disposal options and to lower the storage and disposal costs associated with advanced fuel cycles. Assemblages of several titanate phases have been successfully demonstrated to incorporate radioactive waste elements, and the multiphase nature of these materials allows them to accommodate variation in the waste composition. Recent work has shown that they can be successfully produced from a melting and crystallization process. The objective of this report is to explain the design of ceramic host systems culminating in a reference ceramic formulation for use in subsequent studies on process optimization and melt property data assessment in support of FY13 melter demonstration testing. The waste stream used as the basis for the development and testing is a combination of the projected Cs/Sr separated stream, the Trivalent Actinide - Lanthanide Separation by Phosphorous reagent Extraction from Aqueous Komplexes (TALSPEAK) waste stream consisting of lanthanide fission products, the transition metal fission product waste stream resulting from the transuranic extraction (TRUEX) process, and a high molybdenum concentration with relatively low noble metal concentrations. In addition to the combined CS/LN/TM High Mo waste stream, variants without Mo and without Mo and Zr were also evaluated. Based on the results of fabricating and characterizing several simulated ceramic waste forms, two reference ceramic waste form compositions are recommended in this report. The first composition targets the CS/LN/TM combined waste stream with and without Mo. The second composition targets

  3. Low-dose computed tomography image restoration using previous normal-dose scan

    SciTech Connect

    Ma, Jianhua; Huang, Jing; Feng, Qianjin; Zhang, Hua; Lu, Hongbing; Liang, Zhengrong; Chen, Wufan

    2011-10-15

    Purpose: In current computed tomography (CT) examinations, the associated x-ray radiation dose is of a significant concern to patients and operators. A simple and cost-effective means to perform the examinations is to lower the milliampere-seconds (mAs) or kVp parameter (or delivering less x-ray energy to the body) as low as reasonably achievable in data acquisition. However, lowering the mAs parameter will unavoidably increase data noise and the noise would propagate into the CT image if no adequate noise control is applied during image reconstruction. Since a normal-dose high diagnostic CT image scanned previously may be available in some clinical applications, such as CT perfusion imaging and CT angiography (CTA), this paper presents an innovative way to utilize the normal-dose scan as a priori information to induce signal restoration of the current low-dose CT image series. Methods: Unlike conventional local operations on neighboring image voxels, nonlocal means (NLM) algorithm utilizes the redundancy of information across the whole image. This paper adapts the NLM to utilize the redundancy of information in the previous normal-dose scan and further exploits ways to optimize the nonlocal weights for low-dose image restoration in the NLM framework. The resulting algorithm is called the previous normal-dose scan induced nonlocal means (ndiNLM). Because of the optimized nature of nonlocal weights calculation, the ndiNLM algorithm does not depend heavily on image registration between the current low-dose and the previous normal-dose CT scans. Furthermore, the smoothing parameter involved in the ndiNLM algorithm can be adaptively estimated based on the image noise relationship between the current low-dose and the previous normal-dose scanning protocols. Results: Qualitative and quantitative evaluations were carried out on a physical phantom as well as clinical abdominal and brain perfusion CT scans in terms of accuracy and resolution properties. The gain by the use

  4. WECC Variable Generation Planning Reference Book: Appendices

    SciTech Connect

    Makarov, Yuri V.; Du, Pengwei; Etingov, Pavel V.; Ma, Jian; Vyakaranam, Bharat

    2013-05-13

    The document titled “WECC Variable Generation Planning Reference Book”. This book is divided into two volumes; one is the main document (volume 1)and the other is appendices (volume 2). The main document is a collection of the best practices and the information regarding the application and impact of variables generation on power system planning. This volume (appendices) has additional information on the following topics: Probabilistic load flow problems. 2. Additional useful indices. 3. high-impact low-frequency (HILF) events. 4. Examples of wide-area nomograms. 5. Transmission line ratings, types of dynamic rating methods. 6. Relative costs per MW-km of different electric power transmission technologies. 7. Ultra-high voltage (UHV) transmission. 8.High voltage direct current (VSC-HVDC). 9. HVDC. 10. Rewiring of existing transmission lines. 11. High-temperature low sag (HTLS) conductors. 12. The direct method and energy functions for transient stability analysis in power systems. 13.Blackouts caused by voltage instability. 14. Algorithm for parameter continuation predictor-corrector methods. 15. Approximation techniques available for security regions. 16. Impacts of wind power on power system small signals stability. 17. FIDVR. 18. FACTS. 19. European planning standard and practices. 20. International experience in wind and solar energy sources. 21. Western Renewable Energy Zones (WREZ). 22. various energy storage technologies. 23. demand response. 24. BA consolidation and cooperation options. 25. generator power management requirements and 26. European planning guidelines.

  5. Biomass Scenario Model Documentation: Data and References

    SciTech Connect

    Lin, Y.; Newes, E.; Bush, B.; Peterson, S.; Stright, D.

    2013-05-01

    The Biomass Scenario Model (BSM) is a system dynamics model that represents the entire biomass-to-biofuels supply chain, from feedstock to fuel use. The BSM is a complex model that has been used for extensive analyses; the model and its results can be better understood if input data used for initialization and calibration are well-characterized. It has been carefully validated and calibrated against the available data, with data gaps filled in using expert opinion and internally consistent assumed values. Most of the main data sources that feed into the model are recognized as baseline values by the industry. This report documents data sources and references in Version 2 of the BSM (BSM2), which only contains the ethanol pathway, although subsequent versions of the BSM contain multiple conversion pathways. The BSM2 contains over 12,000 total input values, with 506 distinct variables. Many of the variables are opportunities for the user to define scenarios, while others are simply used to initialize a stock, such as the initial number of biorefineries. However, around 35% of the distinct variables are defined by external sources, such as models or reports. The focus of this report is to provide insight into which sources are most influential in each area of the supply chain.

  6. H2FIRST Reference Station Design Task: Project Deliverable 2...

    Energy Saver

    Reference Station Design Task: Project Deliverable 2-2 H2FIRST Reference Station Design Task: Project Deliverable 2-2 This H2FIRST project report, published in April 2015, presents ...

  7. Reference Manual and Procedures for Implementation of PURPA Standards...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    EPACT 2005 (March 2006) Reference Manual and Procedures for Implementation of PURPA Standards in EPACT 2005 (March 2006) This reference manual is intended to be used as an aid to state ...

  8. FAQS Reference Guide - Aviation Safety Officer | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Safety Officer FAQS Reference Guide - Aviation Safety Officer This reference guide addresses the competency statements in the January 2010 edition of DOE-STD-1164-2003 Chg 1, Aviation Safety Officer Functional Area Qualification Standard. Aviation Safety Officer Qualification Standard Reference Guide, March 2010 (848 KB) More Documents & Publications FAQS Reference Guide - Aviation Manager DOE-STD-1165-2003 DOE-STD-1164

  9. EERE Postdoctoral Research Award Letter of Reference Form | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Postdoctoral Research Award Letter of Reference Form EERE Postdoctoral Research Award Letter of Reference Form An email with instructions and a link to the EERE Postdoctoral Research Award Letter of Reference will be sent to the reference when the applicant submits the profile portion of the application. More Documents & Publications EERE Postdoctoral Research Awards Letter of Support from Research Mentor EERE Postdoctoral Research Award Application Components EERE Postdoctoral

  10. Development of Reference Models and Design Tools (LCOE Models) | Department

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Energy Development of Reference Models and Design Tools (LCOE Models) Development of Reference Models and Design Tools (LCOE Models) Development of Reference Models and Design Tools (LCOE Models) 17_reference_model_snl_jepsen.ppt (2.85 MB) More Documents & Publications FY 09 Lab Call: Research & Assessment for MHK Development 2014 Water Power Program Peer Review Compiled Presentations: Marine and Hydrokinetic Technologies Effects on the Physical Environment (Hydrodynamics,

  11. One in five online scholarly articles affected by 'reference rot'

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Scholarly articles affected by 'reference rot' One in five online scholarly articles affected by 'reference rot' Los Alamos authors focus on reference rot, the combination of link rot and content drift to which references to web resources included in STM articles are subject. January 26, 2015 From left, Los Alamos National Laboratory authors Lyudmila Balakireva, Herbert Van De Sompel and Harihar Shankar, and Martin Klein and Robert Sanderson (on computer screens). Their work was published in the

  12. New Construction - Commercial Reference Buildings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    New Construction - Commercial Reference Buildings New Construction - Commercial Reference Buildings The files on this page contain commercial reference building models for new construction, organized by building type and location. These U.S. Department of Energy (DOE) reference buildings are complete descriptions for whole building energy analysis. You can also return to a summary of building types and climate zones and information about other building vintages. These files are updated regularly

  13. The alanine detector in BNCT dosimetry: Dose response in thermal and epithermal neutron fields

    SciTech Connect

    Schmitz, T.; Bassler, N.; Blaickner, M.; Ziegner, M.; Hsiao, M. C.; Liu, Y. H.; Koivunoro, H.; Auterinen, I.; Sern, T.; Kotiluoto, P.; Palmans, H.; Sharpe, P.; Langguth, P.; Hampel, G.

    2015-01-15

    Purpose: The response of alanine solid state dosimeters to ionizing radiation strongly depends on particle type and energy. Due to nuclear interactions, neutron fields usually also consist of secondary particles such as photons and protons of diverse energies. Various experiments have been carried out in three different neutron beams to explore the alanine dose response behavior and to validate model predictions. Additionally, application in medical neutron fields for boron neutron capture therapy is discussed. Methods: Alanine detectors have been irradiated in the thermal neutron field of the research reactor TRIGA Mainz, Germany, in five experimental conditions, generating different secondary particle spectra. Further irradiations have been made in the epithermal neutron beams at the research reactors FiR 1 in Helsinki, Finland, and Tsing Hua open pool reactor in HsinChu, Taiwan ROC. Readout has been performed with electron spin resonance spectrometry with reference to an absorbed dose standard in a {sup 60}Co gamma ray beam. Absorbed doses and dose components have been calculated using the Monte Carlo codes FLUKA and MCNP. The relative effectiveness (RE), linking absorbed dose and detector response, has been calculated using the Hansen and Olsen alanine response model. Results: The measured dose response of the alanine detector in the different experiments has been evaluated and compared to model predictions. Therefore, a relative effectiveness has been calculated for each dose component, accounting for its dependence on particle type and energy. Agreement within 5% between model and measurement has been achieved for most irradiated detectors. Significant differences have been observed in response behavior between thermal and epithermal neutron fields, especially regarding dose composition and depth dose curves. The calculated dose components could be verified with the experimental results in the different primary and secondary particle fields. Conclusions: The

  14. International linear collider reference design report

    SciTech Connect

    Aarons, G.

    2007-06-22

    The International Linear Collider will give physicists a new cosmic doorway to explore energy regimes beyond the reach of today's accelerators. A proposed electron-positron collider, the ILC will complement the Large Hadron Collider, a proton-proton collider at the European Center for Nuclear Research (CERN) in Geneva, Switzerland, together unlocking some of the deepest mysteries in the universe. With LHC discoveries pointing the way, the ILC -- a true precision machine -- will provide the missing pieces of the puzzle. Consisting of two linear accelerators that face each other, the ILC will hurl some 10 billion electrons and their anti-particles, positrons, toward each other at nearly the speed of light. Superconducting accelerator cavities operating at temperatures near absolute zero give the particles more and more energy until they smash in a blazing crossfire at the centre of the machine. Stretching approximately 35 kilometres in length, the beams collide 14,000 times every second at extremely high energies -- 500 billion-electron-volts (GeV). Each spectacular collision creates an array of new particles that could answer some of the most fundamental questions of all time. The current baseline design allows for an upgrade to a 50-kilometre, 1 trillion-electron-volt (TeV) machine during the second stage of the project. This reference design provides the first detailed technical snapshot of the proposed future electron-positron collider, defining in detail the technical parameters and components that make up each section of the 31-kilometer long accelerator. The report will guide the development of the worldwide R&D program, motivate international industrial studies and serve as the basis for the final engineering design needed to make an official project proposal later this decade.

  15. SU-E-P-11: Comparison of Image Quality and Radiation Dose Between Different Scanner System in Routine Abdomen CT

    SciTech Connect

    Liao, S; Wang, Y; Weng, H

    2015-06-15

    Purpose To evaluate image quality and radiation dose of routine abdomen computed tomography exam with the automatic current modulation technique (ATCM) performed in two different brand 64-slice CT scanners in our site. Materials and Methods A retrospective review of routine abdomen CT exam performed with two scanners; scanner A and scanner B in our site. To calculate standard deviation of the portal hepatic level with a region of interest of 12.5 mm x 12.5mm represented to the image noise. The radiation dose was obtained from CT DICOM image information. Using Computed tomography dose index volume (CTDIv) to represented CT radiation dose. The patient data in this study were with normal weight (about 65–75 Kg). Results The standard deviation of Scanner A was smaller than scanner B, the scanner A might with better image quality than scanner B. On the other hand, the radiation dose of scanner A was higher than scanner B(about higher 50–60%) with ATCM. Both of them, the radiation dose was under diagnostic reference level. Conclusion The ATCM systems in modern CT scanners can contribute a significant reduction in radiation dose to the patient. But the reduction by ATCM systems from different CT scanner manufacturers has slightly variation. Whatever CT scanner we use, it is necessary to find the acceptable threshold of image quality with the minimum possible radiation exposure to the patient in agreement with the ALARA principle.

  16. Total dose and dose rate models for bipolar transistors in circuit simulation.

    SciTech Connect

    Campbell, Phillip Montgomery; Wix, Steven D.

    2013-05-01

    The objective of this work is to develop a model for total dose effects in bipolar junction transistors for use in circuit simulation. The components of the model are an electrical model of device performance that includes the effects of trapped charge on device behavior, and a model that calculates the trapped charge densities in a specific device structure as a function of radiation dose and dose rate. Simulations based on this model are found to agree well with measurements on a number of devices for which data are available.

  17. Measurement of the neutron spectrum and ambient neutron dose rate equivalent from the small 252Cf source at 1 meter

    SciTech Connect

    Radev, R.

    2015-07-07

    NASA Langley Research Center requested a measurement of the neutron spectral distribution and fluence from the 252Cf source (model NS-120, LLNL serial # 7001677, referred as the SMALL Cf source) and determination of the ambient neutron dose rate equivalent and kerma at 100 cm for the Radiation Budget Instrument Experiment (Rad-X). The dosimetric quantities should be based on the neutron spectrum and the current neutron-to-dose conversion coefficients.

  18. Epigenomic Adaptation to Low Dose Radiation

    SciTech Connect

    Gould, Michael N.

    2015-06-30

    The overall hypothesis of this grant application is that the adaptive responses elicited by low dose ionizing radiation (LDIR) result in part from heritable DNA methylation changes in the epigenome. In the final budget period at the University of Wisconsin-Madison, we will specifically address this hypothesis by determining if the epigenetically labile, differentially methylated regions (DMRs) that regulate parental-specific expression of imprinted genes are deregulated in agouti mice by low dose radiation exposure during gestation. This information is particularly important to ascertain given the 1) increased human exposure to medical sources of radiation; 2) increased number of people predicted to live and work in space; and 3) enhanced citizen concern about radiation exposure from nuclear power plant accidents and terrorist ‘dirty bombs.’

  19. Nominal Performance Biosphere Dose Conversion Factor Analysis

    SciTech Connect

    Wasiolek, Maryla A.

    2000-12-21

    The purpose of this report was to document the process leading to development of the Biosphere Dose Conversion Factors (BDCFs) for the postclosure nominal performance of the potential repository at Yucca Mountain. BDCF calculations concerned twenty-four radionuclides. This selection included sixteen radionuclides that may be significant nominal performance dose contributors during the compliance period of up to 10,000 years, five additional radionuclides of importance for up to 1 million years postclosure, and three relatively short-lived radionuclides important for the human intrusion scenario. Consideration of radionuclide buildup in soil caused by previous irrigation with contaminated groundwater was taken into account in the BDCF development. The effect of climate evolution, from the current arid conditions to a wetter and cooler climate, on the BDCF values was evaluated. The analysis included consideration of different exposure pathway's contribution to the BDCFs. Calculations of nominal performance BDCFs used the GENII-S computer code in a series of probabilistic realizations to propagate the uncertainties of input parameters into the output. BDCFs for the nominal performance, when combined with the concentrations of radionuclides in groundwater allow calculation of potential radiation doses to the receptor of interest. Calculated estimates of radionuclide concentration in groundwater result from the saturated zone modeling. The integration of the biosphere modeling results (BDCFs) with the outcomes of the other component models is accomplished in the Total System Performance Assessment (TSPA) to calculate doses to the receptor of interest from radionuclides postulated to be released to the environment from the potential repository at Yucca Mountain.

  20. Dose masking feature for BNCT radiotherapy planning

    DOEpatents

    Cook, Jeremy L.; Wessol, Daniel E.; Wheeler, Floyd J.

    2000-01-01

    A system for displaying an accurate model of isodoses to be used in radiotherapy so that appropriate planning can be performed prior to actual treatment on a patient. The nature of the simulation of the radiotherapy planning for BNCT and Fast Neutron Therapy, etc., requires that the doses be computed in the entire volume. The "entire volume" includes the patient and beam geometries as well as the air spaces in between. Isodoses derived from the computed doses will therefore extend into the air regions between the patient and beam geometries and thus depict the unrealistic possibility that radiation deposition occurs in regions containing no physical media. This problem is solved by computing the doses for the entire geometry and then masking the physical and air regions along with the isodose contours superimposed over the patient image at the corresponding plane. The user is thus able to mask out (remove) the contour lines from the unwanted areas of the image by selecting the appropriate contour masking region from the raster image.

  1. Radioactive materials in biosolids : dose modeling.

    SciTech Connect

    Wolbarst, A. B.; Chiu, W. A; Yu, C.; Aiello, K.; Bachmaier, J. T.; Bastian, R. K.; Cheng, J. -J.; Goodman, J.; Hogan, R.; Jones, A. R.; Kamboj, S.; Lenhartt, T.; Ott, W. R.; Rubin, A.; Salomon, S. N.; Schmidt, D. W.; Setlow, L. W.; Environmental Science Division; U.S. EPA; Middlesex County Utilities Authority; U.S. DOE; U.S. NRC; NE Ohio Regional Sewer District

    2006-01-01

    The Interagency Steering Committee on Radiation Standards (ISCORS) has recently completed a study of the occurrence within the United States of radioactive materials in sewage sludge and sewage incineration ash. One component of that effort was an examination of the possible transport of radioactivity from sludge into the local environment and the subsequent exposure of humans. A stochastic environmental pathway model was applied separately to seven hypothetical, generic sludge-release scenarios, leading to the creation of seven tables of Dose-to-Source Ratios (DSR), which can be used in translating from specific activity in sludge into dose to an individual. These DSR values were then combined with the results of an ISCORS survey of sludge and ash at more than 300 publicly owned treatment works, to explore the potential for radiation exposure of sludge workers and members of the public. This paper provides a brief overview of the pathway modeling methodology employed in the exposure and dose assessments and discusses technical aspects of the results obtained.

  2. Individualized 3D Reconstruction of Normal Tissue Dose for Patients With Long-term Follow-up: A Step Toward Understanding Dose Risk for Late Toxicity

    SciTech Connect

    Ng, Angela; Brock, Kristy K.; Sharpe, Michael B.; Department of Radiation Oncology, University of Toronto, Toronto, Ontario ; Moseley, Joanne L.; Craig, Tim; Department of Radiation Oncology, University of Toronto, Toronto, Ontario ; Hodgson, David C.

    2012-11-15

    Purpose: Understanding the relationship between normal tissue dose and delayed radiation toxicity is an important component of developing more effective radiation therapy. Late outcome data are generally available only for patients who have undergone 2-dimensional (2D) treatment plans. The purpose of this study was to evaluate the accuracy of 3D normal tissue dosimetry derived from reconstructed 2D treatment plans in Hodgkin's lymphoma (HL) patients. Methods and Materials: Three-dimensional lung, heart, and breast volumes were reconstructed from 2D planning radiographs for HL patients who received mediastinal radiation therapy. For each organ, a reference 3D organ was modified with patient-specific structural information, using deformable image processing software. Radiation therapy plans were reconstructed by applying treatment parameters obtained from patient records to the reconstructed 3D volumes. For each reconstructed organ mean dose (D{sub mean}) and volumes covered by at least 5 Gy (V{sub 5}) and 20Gy (V{sub 20}) were calculated. This process was performed for 15 patients who had both 2D and 3D planning data available to compare the reconstructed normal tissue doses with those derived from the primary CT planning data and also for 10 historically treated patients with only 2D imaging available. Results: For patients with 3D planning data, the normal tissue doses could be reconstructed accurately using 2D planning data. Median differences in D{sub mean} between reconstructed and actual plans were 0.18 Gy (lungs), -0.15 Gy (heart), and 0.30 Gy (breasts). Median difference in V{sub 5} and V{sub 20} were less than 2% for each organ. Reconstructed 3D dosimetry was substantially higher in historical mantle-field treatments than contemporary involved-field mediastinal treatments: average D{sub mean} values were 15.2 Gy vs 10.6 Gy (lungs), 27.0 Gy vs 14.3 Gy (heart), and 8.0 Gy vs 3.2 Gy (breasts). Conclusions: Three-dimensional reconstruction of absorbed dose to

  3. Low Dose Suppression of Neoplastic Transformation in Vitro

    SciTech Connect

    John Leslie Redpath

    2012-05-01

    This grant was to study the low dose suppression of neoplastic transformation in vitro and the shape of the dose-response curve at low doses and dose-rates of ionizing radiation. Previous findings had indicated a suppression of transformation at dose <10cGy of low-LET radiation when delivered at high dose-rate. The present study indicates that such suppression extends out to doses in excess of 100cGy when the dose (from I-125 photons) is delivered at dose-rates as low as 0.2 mGy/min and out to in excess of {approx}25cGy the highest dose studied at the very low dose-rate of 0.5 mGy/day. We also examined dose-rate effects for high energy protons (which are a low-LET radiation) and suppression was evident below {approx}10cGy for high dose-rate delivery and at least out to 50cGy for low dose-rate (20cGy/h) delivery. Finally, we also examined the effect of low doses of 1 GeV/n iron ions (a high-LET radiation) delivered at high dose-rate on transformation at low doses and found a suppression below {approx}10cGy that could be attributable to an adaptive response in bystander cells induced by the associated low-LET delta rays. These results have implications for cancer risk assessment at low doses.

  4. Advanced Computational Approaches for Characterizing Stochastic Cellular Responses to Low Dose, Low Dose Rate Exposures

    SciTech Connect

    Scott, Bobby, R., Ph.D.

    2003-06-27

    OAK - B135 This project final report summarizes modeling research conducted in the U.S. Department of Energy (DOE), Low Dose Radiation Research Program at the Lovelace Respiratory Research Institute from October 1998 through June 2003. The modeling research described involves critically evaluating the validity of the linear nonthreshold (LNT) risk model as it relates to stochastic effects induced in cells by low doses of ionizing radiation and genotoxic chemicals. The LNT model plays a central role in low-dose risk assessment for humans. With the LNT model, any radiation (or genotoxic chemical) exposure is assumed to increase one¡¯s risk of cancer. Based on the LNT model, others have predicted tens of thousands of cancer deaths related to environmental exposure to radioactive material from nuclear accidents (e.g., Chernobyl) and fallout from nuclear weapons testing. Our research has focused on developing biologically based models that explain the shape of dose-response curves for low-dose radiation and genotoxic chemical-induced stochastic effects in cells. Understanding the shape of the dose-response curve for radiation and genotoxic chemical-induced stochastic effects in cells helps to better understand the shape of the dose-response curve for cancer induction in humans. We have used a modeling approach that facilitated model revisions over time, allowing for timely incorporation of new knowledge gained related to the biological basis for low-dose-induced stochastic effects in cells. Both deleterious (e.g., genomic instability, mutations, and neoplastic transformation) and protective (e.g., DNA repair and apoptosis) effects have been included in our modeling. Our most advanced model, NEOTRANS2, involves differing levels of genomic instability. Persistent genomic instability is presumed to be associated with nonspecific, nonlethal mutations and to increase both the risk for neoplastic transformation and for cancer occurrence. Our research results, based on

  5. Headquarters Security Quick Reference Book | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Security Quick Reference Book Headquarters Security Quick Reference Book June 2013 This quick reference book provides an overview of Department of Energy (DOE) Headquarters (HQ) security programs. It is not meant to replace the DOE Headquarters Facilities Master Security Plan (HQFMSP), which provides detailed instructions for the implementation of DOE safeguards and security requirements as published in a number of DOE orders, policies, notices, and guides. This book is a tool that can be used

  6. Existing Commercial Reference Buildings Constructed In or After 1980 |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy In or After 1980 Existing Commercial Reference Buildings Constructed In or After 1980 The files on this page contain commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. These U.S. Department of Energy (DOE) reference buildings are complete descriptions for whole building energy analysis. You can also return to a summary of building types and climate zones and information about other building

  7. FAQS Reference Guide - Electrical Systems and Safety Oversight |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Electrical Systems and Safety Oversight FAQS Reference Guide - Electrical Systems and Safety Oversight This reference guide addresses the competency statements in the August 2007 edition of DOE-STD-1170-2007, Electrical Systems and Safety Oversight Functional Area Qualification Standard. Electrical Systems and Safety Oversight Qualification Standard Reference Guide, December 2009 (5.89 MB) More Documents & Publications DOE-HDBK-1011/3-92 DOE-HDBK-1011/4-92

  8. FAQS Reference Guide - Instrumentation and Control | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Instrumentation and Control FAQS Reference Guide - Instrumentation and Control This reference guide has been developed to address the competency statements in the June 2013 edition of DOE-Standard (STD)-1162-2013, Instrumentation and Control Functional Area Qualification Standard. Instrumentation and Control Qualification Standard Reference Guide, June 2013 (2.65 MB) More Documents & Publications DOE-STD-1162-2013 DOE-STD-1162-2003 DOE-HDBK-1018/2-93

  9. FAQS Reference Guide - Mechanical Systems | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Mechanical Systems FAQS Reference Guide - Mechanical Systems This reference guide has been developed to address the competency statements in the June 2008 edition of DOE-STD-1161-2008, Mechanical Systems Functional Area Qualification Standard. Mechanical Systems Qualification Standard Reference Guide, August 2012 (5.3 MB) More Documents & Publications DOE-HDBK-1017/1-93 DOE-HDBK-1017/2-93 A Review of Stress Corrosion Cracking/Fatigue Modeling for Light Water Reactor Cooling System Components

  10. FAQS Reference Guide - Nuclear Safety Specialist | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Nuclear Safety Specialist FAQS Reference Guide - Nuclear Safety Specialist This reference guide has been developed to address the competency statements in the November 2007 edition of DOE Standard DOE-STD-1183-2007, Nuclear Safety Specialist Functional Area Qualification Standard. Nuclear Safety Specialist Qualification Standard Reference Guide, August 2014 (4.39 MB) More Documents & Publications DOE-STD-3009-94 DOE-STD-3009-94 DOE-STD-3009-2014 Requirements Matrix

  11. FAQS Reference Guide - Safeguards and Security | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Safeguards and Security FAQS Reference Guide - Safeguards and Security This reference guide addresses the competency statements in the May 2009 edition of DOE-STD-1171-2009, Safeguards and Security Functional Area Qualification Standard. Safeguards and Security Qualification Standard Reference Guide, October 2010 (1.63 MB) More Documents & Publications FAQS Job Task Analyses - Safeguards and Security General Technical Base DOE-STD-1171-2009 DOE-STD-1123-2009

  12. FAQS Reference Guide - Technical Program Manager | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Program Manager FAQS Reference Guide - Technical Program Manager This reference guide addresses the competency statements in the February 2004 edition of DOE-Standard (STD)-1178-2004, Technical Program Manager Functional Area Qualification Standard. Technical Program Manager Qualification Standard Reference Guide, May 2013 (1.7 MB) More Documents & Publications DOE-STD-1104-2014 Training Site Visit Report, Lawrence Livermore National Laboratory - February 2011 Crosswalk of DOE-STD-1104 Bases

  13. FAQS Reference Guide - Transportation and Traffic Management | Department

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Energy Transportation and Traffic Management FAQS Reference Guide - Transportation and Traffic Management This reference guide addresses the competency statements in the September 2002 edition of DOE-STD-1155-2002, Transportation and Traffic Functional Area Qualification Standard. Transportation and Traffic Management Qualification Standard Reference Guide, April 2010 (1.42 MB) More Documents & Publications DOE-STD-1155-2002 FAQS Qualification Card - Transportation and Traffic

  14. FAQS Reference Guide - Weapon Quality Assurance | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Weapon Quality Assurance FAQS Reference Guide - Weapon Quality Assurance This reference guide addresses the competency statements in the August 2008 edition of DOE-STD-1025-2008, Weapon Quality Assurance Functional Area Qualification Standard. Weapon Quality Assurance Qualification Standard Reference Guide, August 2009 (382.42 KB) More Documents & Publications FAQS Qualification Card - Weapon Quality Assurance DOE-STD-1025-2008 FAQS Job Task Analyses - Weapons Quality Assurance

  15. Appendix B: Regional Feedstock Partnership References and Products

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    B: REFERENCES 0 | Regional Feedstock Partnership Report This is a supplemental appendix to the Regional Feedstock Partnership Summary Report, prepared for the U.S. Department of Energy's Bioenergy Technologies Office, July 2016, by the Sun Grant Initiative and Idaho National Laboratory. APPENDIX B: REFERENCES Regional Feedstock Partnership Report - Bioenergy Technologies Office | 1 Appendix B: Regional Feedstock Partnership References and Products This appendix lists all publications and

  16. Terms of Reference for the International Partnership for the Hydrogen

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Economy | Department of Energy Terms of Reference for the International Partnership for the Hydrogen Economy Terms of Reference for the International Partnership for the Hydrogen Economy Updated version (October 31, 2003) of the Terms of Reference for the International Partnership for the Hydrogen Economy, including purpose, functions, organization. rev_terms_ref_iphe.pdf (140.09 KB) More Documents & Publications Non-Paper on Activities and Operations of the IPHE Committees International

  17. Technical Meeting: Reference Guide for a Transaction-Based Building

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Controls Framework | Department of Energy Reference Guide for a Transaction-Based Building Controls Framework Technical Meeting: Reference Guide for a Transaction-Based Building Controls Framework On May 2, 2014, BTO hosted a technical meeting at NREL, in Golden, CO, on the Reference Guide for a Transaction-Based Building Controls Framework: Unlocking energy efficiency and grid service values for building energy consumers. The purpose of this meeting was to review with industry stakeholders

  18. Attachment F - Bibliography and References | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    F - Bibliography and References Attachment F - Bibliography and References These documents are listed in Attachment F - Bibliography and References section of the Phase 2 Radiological Release Accident Investigation Report. DOE Order 225.1B, Accident Investigations, March 4, 2011 DOE Order 226.1B, Implementation of Department of Energy Oversight Policy, April 25, 2011 DOE Order 422.1, Conduct of Operations, June 29, 2010 DOE Order 426.1, Federal Technical Capability, November 19, 2009 DOE Manual

  19. Spine stereotactic body radiation therapy plans: Achieving dose coverage, conformity, and dose falloff

    SciTech Connect

    Hong, Linda X.; Shankar, Viswanathan; Shen, Jin; Kuo, Hsiang-Chi; Mynampati, Dinesh; Yaparpalvi, Ravindra; Goddard, Lee; Basavatia, Amar; Fox, Jana; Garg, Madhur; Kalnicki, Shalom; Tomé, Wolfgang A.

    2015-10-01

    We report our experience of establishing planning objectives to achieve dose coverage, conformity, and dose falloff for spine stereotactic body radiation therapy (SBRT) plans. Patients with spine lesions were treated using SBRT in our institution since September 2009. Since September 2011, we established the following planning objectives for our SBRT spine plans in addition to the cord dose constraints: (1) dose coverage—prescription dose (PD) to cover at least 95% planning target volume (PTV) and 90% PD to cover at least 99% PTV; (2) conformity index (CI)—ratio of prescription isodose volume (PIV) to the PTV < 1.2; (3) dose falloff—ratio of 50% PIV to the PTV (R{sub 50%}); (4) and maximum dose in percentage of PD at 2 cm from PTV in any direction (D{sub 2cm}) to follow Radiation Therapy Oncology Group (RTOG) 0915. We have retrospectively reviewed 66 separate spine lesions treated between September 2009 and December 2012 (31 treated before September 2011 [group 1] and 35 treated after [group 2]). The χ{sup 2} test was used to examine the difference in parameters between groups. The PTV V{sub 100%} {sub PD} ≥ 95% objective was met in 29.0% of group 1 vs 91.4% of group 2 (p < 0.01) plans. The PTV V{sub 90%} {sub PD} ≥ 99% objective was met in 38.7% of group 1 vs 88.6% of group 2 (p < 0.01) plans. Overall, 4 plans in group 1 had CI > 1.2 vs none in group 2 (p = 0.04). For D{sub 2cm}, 48.3% plans yielded a minor violation of the objectives and 16.1% a major violation for group 1, whereas 17.1% exhibited a minor violation and 2.9% a major violation for group 2 (p < 0.01). Spine SBRT plans can be improved on dose coverage, conformity, and dose falloff employing a combination of RTOG spine and lung SBRT protocol planning objectives.

  20. The Hydrogen Laboratory and The Brazilian Reference Center for...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    The Hydrogen Laboratory and The Brazilian Reference Center for Hydrogen Energy Presentation given by Newton Pimenta and Cristiano Pinto of the State University of Campinas at the ...

  1. Reference Model for Control and Automation Systems in Electrical...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Reference Model for Control and Automation Systems in Electrical Power Version 1.2 October ... all automation elements for the electrical infrastructure: EMS, protective ...

  2. Reference Model for Control and Automation Systems in Electrical...

    Office of Environmental Management (EM)

    Model for Control and Automation Systems in Electrical Power (October 2005) Reference Model for Control and Automation Systems in Electrical Power (October 2005) Modern ...

  3. Designing Renewable Energy Financing Mechanism Terms of Reference...

    OpenEI (Open Energy Information) [EERE & EIA]

    Designing Renewable Energy Financing Mechanism Terms of Reference (Redirected from Designing Renewable Energy Financing Mechanisms) Jump to: navigation, search Tool Summary LAUNCH...

  4. Designing Renewable Energy Financing Mechanism Terms of Reference...

    OpenEI (Open Energy Information) [EERE & EIA]

    Support Design of Institutional and Financial Intermediation Scheme for a Micro hydro Power Development Program Design of a Rural Energy Fund References "Designing...

  5. U. S. Department of Energy Operational Plan and Desktop Reference

    Office of Environmental Management (EM)

    S. Department of Energy Operational Plan and Desktop Reference For The Disability ... It is my honor to forward the U. S. Department of Energy's "Operational Plan and Desktop ...

  6. Plutonium Certified Reference Materials Price List | U.S. DOE...

    Office of Science (SC)

    NBL PO Home About Programs Certified Reference Materials (CRMs) Prices and Certificates Ordering Information NEPA Documents News Safety Data Sheets (SDS) for NBL Program Office ...

  7. Renewable Energy Cross Sectoral Assessments Terms of Reference...

    OpenEI (Open Energy Information) [EERE & EIA]

    Renewable Energy Cross Sectoral Assessments Terms of Reference Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Renewable Energy Cross Sectoral Assessments Terms of...

  8. Renewable Energy Terms of Reference: Laws, Policies and Regulations...

    OpenEI (Open Energy Information) [EERE & EIA]

    Laws, Policies and Regulations Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Renewable Energy Terms of Reference: Laws, Policies and Regulations AgencyCompany...

  9. A time-dependent formulation of multi-reference perturbation...

    Office of Scientific and Technical Information (OSTI)

    Title: A time-dependent formulation of multi-reference perturbation theory Authors: Sokolov, Alexander Yu. 1 ; Chan, Garnet Kin-Lic 1 + Show Author Affiliations Department of ...

  10. FAQS Reference Guide – Safeguards and Security General Technical Base

    Office of Energy Efficiency and Renewable Energy (EERE)

    This reference guide addresses the competency statements in the July 2009 edition of DOE-STD-1123-2009, Safeguards and Security General Technical Base Qualification Standard.

  11. The Hydrogen Laboratory and The Brazilian Reference Center for...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Laboratory & The Brazilian Reference Center for Hydrogen Energy December 09 th , 2009 Dr. ... is the site for 3 energy centers: The Hydrogen Laboratory (LH2) at the Physics ...

  12. One in five online scholarly articles affected by 'reference...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... Science Space Technology The Lab January Scholarly articles affected by 'reference rot' Supporting biosurveillance via the web Growing high-efficiency perovskite solar cells

  13. Sandia Energy - DOE-Sponsored Reference Model Project Results...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    partnered effort to develop marine hydrokinetic (MHK) reference models (RMs) for wave energy converters and tidal, ocean, and river current energy converters. The RMP team...

  14. Annual Energy Outlook 2013 Early Release Reference Case

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    emission intensity index, 20051 Source: EIA, Annual Energy Outlook 2015 Reference case History Projections 2013 Carbon dioxide emissions per 2009 dollar GDP Energy use per 2009...

  15. Manager's Desk Reference on Human Capital Management Flexibilities...

    Energy.gov [DOE] (indexed site)

    that can be used in day-to-day human capital management activities, especially ... Manager's Desk Reference on Human Capital Management Flexibilities (640.69 KB) Responsible ...

  16. Spectrotemporal CT data acquisition and reconstruction at low dose

    SciTech Connect

    Clark, Darin P.; Badea, Cristian T.; Lee, Chang-Lung; Kirsch, David G.

    2015-11-15

    Purpose: X-ray computed tomography (CT) is widely used, both clinically and preclinically, for fast, high-resolution anatomic imaging; however, compelling opportunities exist to expand its use in functional imaging applications. For instance, spectral information combined with nanoparticle contrast agents enables quantification of tissue perfusion levels, while temporal information details cardiac and respiratory dynamics. The authors propose and demonstrate a projection acquisition and reconstruction strategy for 5D CT (3D + dual energy + time) which recovers spectral and temporal information without substantially increasing radiation dose or sampling time relative to anatomic imaging protocols. Methods: The authors approach the 5D reconstruction problem within the framework of low-rank and sparse matrix decomposition. Unlike previous work on rank-sparsity constrained CT reconstruction, the authors establish an explicit rank-sparse signal model to describe the spectral and temporal dimensions. The spectral dimension is represented as a well-sampled time and energy averaged image plus regularly undersampled principal components describing the spectral contrast. The temporal dimension is represented as the same time and energy averaged reconstruction plus contiguous, spatially sparse, and irregularly sampled temporal contrast images. Using a nonlinear, image domain filtration approach, the authors refer to as rank-sparse kernel regression, the authors transfer image structure from the well-sampled time and energy averaged reconstruction to the spectral and temporal contrast images. This regularization strategy strictly constrains the reconstruction problem while approximately separating the temporal and spectral dimensions. Separability results in a highly compressed representation for the 5D data in which projections are shared between the temporal and spectral reconstruction subproblems, enabling substantial undersampling. The authors solved the 5D reconstruction

  17. Technology, safety, and costs of decommissioning a reference large irradiator and reference sealed sources

    SciTech Connect

    Haffner, D.R.; Villelgas, A.J.

    1996-01-01

    This report contains the results of a study sponsored by the US Nuclear Regulatory Commission (NRC) to examine the decommissioning of large radioactive irradiators and their respective facilities, and a broad spectrum of sealed radioactive sources and their respective devices. Conceptual decommissioning activities are identified, and the technology, safety, and costs (in early 1993 dollars) associated with decommissioning the reference large irradiator and sealed source facilities are evaluated. The study provides bases and background data for possible future NRC rulemaking regarding decommissioning, for evaluation of the reasonableness of planned decommissioning actions, and for determining if adequate funds are reserved by the licensees for decommissioning of their large irradiator or sealed source facilities. Another purpose of this study is to provide background and information to assist licensees in planning and carrying out the decommissioning of their sealed radioactive sources and respective facilities.

  18. Ensuring the Availability and Reliability of Urea Dosing For...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Ensuring the Availability and Reliability of Urea Dosing For On-Road and Non-Road Ensuring the Availability and Reliability of Urea Dosing For On-Road and Non-Road 2003 DEER ...

  19. Wide-range radiation dose monitor

    DOEpatents

    Kopp, Manfred K.

    1986-01-01

    A radiation dose-rate monitor is provided which operates in a conventional linear mode for radiation in the 0 to 0.5 R/h range and utilizes a nonlinear mode of operation for sensing radiation from 0.5 R/h to over 500 R/h. The nonlinear mode is achieved by a feedback circuit which adjusts the high voltage bias of the proportional counter, and hence its gas gain, in accordance with the amount of radiation being monitored. This allows compression of readout onto a single scale over the range of 0 to greater than 500 R/h without scale switching operations.

  20. Wide-range radiation dose monitor

    DOEpatents

    Kopp, M.K.

    1984-09-20

    A radiation dose-rate monitor is provided which operates in a conventional linear mode for radiation in the 0 to 0.5 R/h range and utilizes a nonlinear mode of operation for sensing radiation from 0.5 R/h to over 500 R/h. The nonlinear mode is achieved by a feedback circuit which adjusts the high voltage bias of the proportional counter, and hence its gas gain, in accordance with the amount of radiation being monitored. This allows compression of readout onto a single scale over the range of 0 to greater than 500 R/h without scale switching operations.

  1. TH-A-9A-01: Active Optical Flow Model: Predicting Voxel-Level Dose Prediction in Spine SBRT

    SciTech Connect

    Liu, J; Wu, Q.J.; Yin, F; Kirkpatrick, J; Cabrera, A; Ge, Y

    2014-06-15

    Purpose: To predict voxel-level dose distribution and enable effective evaluation of cord dose sparing in spine SBRT. Methods: We present an active optical flow model (AOFM) to statistically describe cord dose variations and train a predictive model to represent correlations between AOFM and PTV contours. Thirty clinically accepted spine SBRT plans are evenly divided into training and testing datasets. The development of predictive model consists of 1) collecting a sequence of dose maps including PTV and OAR (spinal cord) as well as a set of associated PTV contours adjacent to OAR from the training dataset, 2) classifying data into five groups based on PTV's locations relative to OAR, two “Top”s, “Left”, “Right”, and “Bottom”, 3) randomly selecting a dose map as the reference in each group and applying rigid registration and optical flow deformation to match all other maps to the reference, 4) building AOFM by importing optical flow vectors and dose values into the principal component analysis (PCA), 5) applying another PCA to features of PTV and OAR contours to generate an active shape model (ASM), and 6) computing a linear regression model of correlations between AOFM and ASM.When predicting dose distribution of a new case in the testing dataset, the PTV is first assigned to a group based on its contour characteristics. Contour features are then transformed into ASM's principal coordinates of the selected group. Finally, voxel-level dose distribution is determined by mapping from the ASM space to the AOFM space using the predictive model. Results: The DVHs predicted by the AOFM-based model and those in clinical plans are comparable in training and testing datasets. At 2% volume the dose difference between predicted and clinical plans is 4.2±4.4% and 3.3±3.5% in the training and testing datasets, respectively. Conclusion: The AOFM is effective in predicting voxel-level dose distribution for spine SBRT. Partially supported by NIH/NCI under grant

  2. The biological effect of inhomogeneous dose distributions in fractionated radiotherapy

    SciTech Connect

    Yaes, R.J. )

    1990-07-01

    The linear quadratic (LQ) model is applied to an organ receiving a fractionated course of radiotherapy with an inhomogeneous dose distribution. It is shown that the gradient in the extrapolated response dose (ERD) will be steeper than the gradient in the physical dose. This effect will be greatest for an organ with a small alpha/beta ratio treated with large dose fractions. Clinical implications are discussed with an emphasis on radiation myelitis.

  3. 131I-Tositumomab Myeloablative Radioimmunotherapy for Non-Hodgkin's Lymphoma: Radiation Dose to the Testes

    SciTech Connect

    Hattori, Naoya; Gopal, Ajay K.; Shields, Andrew T.; Fisher, Darrell R.; Gooley, Ted; Pagel, John M.; Press, Oliver W.; Rajendran, Joseph G.

    2012-12-01

    To investigate radiation dose to testes delivered by radiolabeled anti-CD20 antibody and its effects on male sex hormone levels. METHODS: We evaluated dosimetry results for 67 male patients (54 ± 11 years old) with non-Hodgkin lymphoma who underwent myeloablative radioimmunotherapy (RIT) using 131I-tositumomab. In a subset of patients, male sex hormones were measured before and one year after the therapy. RESULTS: Absorbed dose to testes showed greater variability (range = 4.4 to 70.2 Gy) than did dose to lungs (9.5 to 28.4 Gy, p < 0.0001) or liver (6.5 to 27.2 Gy, p < 0.0001). Absorbed dose to the testes per 131I administered (1.18 ± 0.59 mGy/MBq) was not significantly different from that to the liver (1.03 ± 0.29 mGy/MBq, p = 0.08), or to the lungs (1.19 ± 0.50 mGy/MBq, p = 0.889). Pre-therapy levels of total testosterone were below the lower limit of the reference range, and post-therapy evaluation demonstrated further reduction (4.6 ± 1.8 nmol/L (pre-RIT) vs. 3.8 ± 2.9 nmol/L (post-RIT), p < 0.05). Patients receiving higher radiation doses to the testes (≥ 25 Gy) showed a greater reduction (4.7 ± 1.6 nmol/L (pre RIT) vs. 3.3 ± 2.7 nmol/L (post-RIT), p < 0.05) than did patients receiving lower doses (< 25 Gy), who showed no significant change in total testosterone levels. CONCLUSION: The testicular radiation absorbed dose varied highly among individual patients. Patients receiving higher doses to testes were more likely to show post-RIT suppression of testosterone levels. Key Words: 131I-tositumomab, follicular lymphoma, radioimmunotherapy, radiation dosimetry, male sex hormones.  

  4. Archived Reference Climate Zone: 3C San Francisco, California

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  5. Archived Reference Climate Zone: 3C San Francisco, California

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  6. Archived Reference Climate Zone: 3B Las Vegas, Nevada

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  7. Archived Reference Climate Zone: 3B Las Vegas, Nevada

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  8. Archived Reference Climate Zone: 1A Miami, Florida

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  9. Archived Reference Climate Zone: 1A Miami, Florida

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  10. Archived Reference Climate Zone: 4B Albuquerque, New Mexico

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  11. Archived Reference Climate Zone: 3B Los Angeles, California

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  12. Archived Reference Climate Zone: 3B Los Angeles, California

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  13. Archived Reference Climate Zone: 4B Albuquerque, New Mexico

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  14. Archived Reference Building Type: Stand-alone retail

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  15. Archived Reference Building Type: Stand-alone retail

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  16. Archived Reference Climate Zone: 5A Chicago, Illinois

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  17. Archived Reference Climate Zone: 5A Chicago, Illinois

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  18. Archived Reference Climate Zone: TMY2 Weather Data

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  19. Archived Reference Climate Zone: TMY2 Weather Data

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  20. Archived Reference Climate Zone: 6B Helena, Montana

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  1. Archived Reference Climate Zone: 6B Helena, Montana

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  2. Archived Reference Climate Zone: 4A Baltimore, Maryland

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  3. Archived Reference Climate Zone: 4A Baltimore, Maryland

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  4. Archived Reference Climate Zone: 3A Atlanta, Georgia

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  5. Archived Reference Climate Zone: 3A Atlanta, Georgia

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  6. Archived Reference Climate Zone: 2B Phoenix, Arizona

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  7. Archived Reference Climate Zone: 2B Phoenix, Arizona

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  8. Archived Reference Climate Zone: 6A Minneapolis, Minnesota

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary ofbuilding types and climate zones is available for reference. Current versions are also available.

  9. Archived Reference Climate Zone: 6A Minneapolis, Minnesota

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed in or after 1980, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available.

  10. Webinar October 13: Reference Designs for Hydrogen Fueling Stations

    Energy.gov [DOE]

    The Fuel Cell Technologies Office will present a live webinar titled "Reference Designs for Hydrogen Fueling Stations" on Tuesday, October 13, from 12 to 1 p.m. Eastern Daylight Time (EDT). This presentation will discuss the process and findings of the work, recommended future research and development topics, and outline planned next steps for the H2FIRST Reference Station Design Task.

  11. Technical Note: Phantom study to evaluate the dose and image quality effects of a computed tomography organ-based tube current modulation technique

    SciTech Connect

    Gandhi, Diksha; Schmidt, Taly Gilat; Crotty, Dominic J.; Stevens, Grant M.

    2015-11-15

    ) relative to SmartmA. Conclusions: ODM reduced dose in all experimental and simulation studies over a range of phantoms, while increasing noise. The results suggest a net dose/noise benefit for breast and eye lens for all studied phantoms, negligible lung dose effects for two phantoms, increased lung dose and/or noise for eight phantoms, and increased dose and/or noise for brain and spine for all studied phantoms compared to the reference protocol.

  12. Evaluation and Control of Radiation Dose to the Embryo/Fetus Guide for Use with Title 10, Code of Federal Regulations, Part 835, Occupational Radiation Protection

    Directives, Delegations, and Other Requirements [Office of Management (MA)]

    1999-04-29

    This Guide provides an acceptable methodology for establishing and operating a program to control fetal exposure to ionizing radiation and evaluate the resultant dose that will comply with U.S. Department of Energy (DOE) requirements specified in Title 10 of the Code of Federal Regulations (CFR), Part 835, Occupational Radiation Protection (DOE 1998), hereinafter referred to as 10 CFR 835.

  13. Development of a 5 MW reference gearbox for offshore wind turbines: 5 MW reference gearbox

    SciTech Connect

    Nejad, Amir Rasekhi; Guo, Yi; Gao, Zhen; Moan, Torgeir

    2015-07-27

    This paper presents detailed descriptions, modeling parameters and technical data of a 5MW high-speed gearbox developed for the National Renewable Energy Laboratory offshore 5MW baseline wind turbine. The main aim of this paper is to support the concept studies and research for large offshore wind turbines by providing a baseline gearbox model with detailed modeling parameters. This baseline gearbox follows the most conventional design types of those used in wind turbines. It is based on the four-point supports: two main bearings and two torque arms. The gearbox consists of three stages: two planetary and one parallel stage gears. The gear ratios among the stages are calculated in a way to obtain the minimum gearbox weight. The gearbox components are designed and selected based on the offshore wind turbine design codes and validated by comparison to the data available from large offshore wind turbine prototypes. All parameters required to establish the dynamic model of the gearbox are then provided. Moreover, a maintenance map indicating components with high to low probability of failure is shown. The 5 MW reference gearbox can be used as a baseline for research on wind turbine gearboxes and comparison studies. It can also be employed in global analysis tools to represent a more realistic model of a gearbox in a coupled analysis.

  14. Realistic simulation of reduced-dose CT with noise modeling and sinogram synthesis using DICOM CT images

    SciTech Connect

    Won Kim, Chang; Kim, Jong Hyo

    2014-01-15

    Purpose: Reducing the patient dose while maintaining the diagnostic image quality during CT exams is the subject of a growing number of studies, in which simulations of reduced-dose CT with patient data have been used as an effective technique when exploring the potential of various dose reduction techniques. Difficulties in accessing raw sinogram data, however, have restricted the use of this technique to a limited number of institutions. Here, we present a novel reduced-dose CT simulation technique which provides realistic low-dose images without the requirement of raw sinogram data. Methods: Two key characteristics of CT systems, the noise equivalent quanta (NEQ) and the algorithmic modulation transfer function (MTF), were measured for various combinations of object attenuation and tube currents by analyzing the noise power spectrum (NPS) of CT images obtained with a set of phantoms. Those measurements were used to develop a comprehensive CT noise model covering the reduced x-ray photon flux, object attenuation, system noise, and bow-tie filter, which was then employed to generate a simulated noise sinogram for the reduced-dose condition with the use of a synthetic sinogram generated from a reference CT image. The simulated noise sinogram was filtered with the algorithmic MTF and back-projected to create a noise CT image, which was then added to the reference CT image, finally providing a simulated reduced-dose CT image. The simulation performance was evaluated in terms of the degree of NPS similarity, the noise magnitude, the bow-tie filter effect, and the streak noise pattern at photon starvation sites with the set of phantom images. Results: The simulation results showed good agreement with actual low-dose CT images in terms of their visual appearance and in a quantitative evaluation test. The magnitude and shape of the NPS curves of the simulated low-dose images agreed well with those of real low-dose images, showing discrepancies of less than +/?3.2% in

  15. TU-F-17A-08: The Relative Accuracy of 4D Dose Accumulation for Lung Radiotherapy Using Rigid Dose Projection Versus Dose Recalculation On Every Breathing Phase

    SciTech Connect

    Lamb, J; Lee, C; Tee, S; Lee, P; Iwamoto, K; Low, D; Valdes, G; Robinson, C

    2014-06-15

    Purpose: To investigate the accuracy of 4D dose accumulation using projection of dose calculated on the end-exhalation, mid-ventilation, or average intensity breathing phase CT scan, versus dose accumulation performed using full Monte Carlo dose recalculation on every breathing phase. Methods: Radiotherapy plans were analyzed for 10 patients with stage I-II lung cancer planned using 4D-CT. SBRT plans were optimized using the dose calculated by a commercially-available Monte Carlo algorithm on the end-exhalation 4D-CT phase. 4D dose accumulations using deformable registration were performed with a commercially available tool that projected the planned dose onto every breathing phase without recalculation, as well as with a Monte Carlo recalculation of the dose on all breathing phases. The 3D planned dose (3D-EX), the 3D dose calculated on the average intensity image (3D-AVE), and the 4D accumulations of the dose calculated on the end-exhalation phase CT (4D-PR-EX), the mid-ventilation phase CT (4D-PR-MID), and the average intensity image (4D-PR-AVE), respectively, were compared against the accumulation of the Monte Carlo dose recalculated on every phase. Plan evaluation metrics relating to target volumes and critical structures relevant for lung SBRT were analyzed. Results: Plan evaluation metrics tabulated using 4D-PR-EX, 4D-PR-MID, and 4D-PR-AVE differed from those tabulated using Monte Carlo recalculation on every phase by an average of 0.140.70 Gy, - 0.110.51 Gy, and 0.000.62 Gy, respectively. Deviations of between 8 and 13 Gy were observed between the 4D-MC calculations and both 3D methods for the proximal bronchial trees of 3 patients. Conclusions: 4D dose accumulation using projection without re-calculation may be sufficiently accurate compared to 4D dose accumulated from Monte Carlo recalculation on every phase, depending on institutional protocols. Use of 4D dose accumulation should be considered when evaluating normal tissue complication probabilities

  16. Dose reconstruction for real-time patient-specific dose estimation in CT

    SciTech Connect

    De Man, Bruno Yin, Zhye; Wu, Mingye; FitzGerald, Paul; Kalra, Mannudeep

    2015-05-15

    Purpose: Many recent computed tomography (CT) dose reduction approaches belong to one of three categories: statistical reconstruction algorithms, efficient x-ray detectors, and optimized CT acquisition schemes with precise control over the x-ray distribution. The latter category could greatly benefit from fast and accurate methods for dose estimation, which would enable real-time patient-specific protocol optimization. Methods: The authors present a new method for volumetrically reconstructing absorbed dose on a per-voxel basis, directly from the actual CT images. The authors’ specific implementation combines a distance-driven pencil-beam approach to model the first-order x-ray interactions with a set of Gaussian convolution kernels to model the higher-order x-ray interactions. The authors performed a number of 3D simulation experiments comparing the proposed method to a Monte Carlo based ground truth. Results: The authors’ results indicate that the proposed approach offers a good trade-off between accuracy and computational efficiency. The images show a good qualitative correspondence to Monte Carlo estimates. Preliminary quantitative results show errors below 10%, except in bone regions, where the authors see a bigger model mismatch. The computational complexity is similar to that of a low-resolution filtered-backprojection algorithm. Conclusions: The authors present a method for analytic dose reconstruction in CT, similar to the techniques used in radiation therapy planning with megavoltage energies. Future work will include refinements of the proposed method to improve the accuracy as well as a more extensive validation study. The proposed method is not intended to replace methods that track individual x-ray photons, but the authors expect that it may prove useful in applications where real-time patient-specific dose estimation is required.

  17. SU-E-T-280: Reconstructed Rectal Wall Dose Map-Based Verification of Rectal Dose Sparing Effect According to Rectum Definition Methods and Dose Perturbation by Air Cavity in Endo-Rectal Balloon

    SciTech Connect

    Park, J; Park, H; Lee, J; Kang, S; Lee, M; Suh, T; Lee, B

    2014-06-01

    Purpose: Dosimetric effect and discrepancy according to the rectum definition methods and dose perturbation by air cavity in an endo-rectal balloon (ERB) were verified using rectal-wall (Rwall) dose maps considering systematic errors in dose optimization and calculation accuracy in intensity-modulated radiation treatment (IMRT) for prostate cancer patients. Methods: When the inflated ERB having average diameter of 4.5 cm and air volume of 100 cc is used for patient, Rwall doses were predicted by pencil-beam convolution (PBC), anisotropic analytic algorithm (AAA), and AcurosXB (AXB) with material assignment function. The errors of dose optimization and calculation by separating air cavity from the whole rectum (Rwhole) were verified with measured rectal doses. The Rwall doses affected by the dose perturbation of air cavity were evaluated using a featured rectal phantom allowing insert of rolled-up gafchromic films and glass rod detectors placed along the rectum perimeter. Inner and outer Rwall doses were verified with reconstructed predicted rectal wall dose maps. Dose errors and extent at dose levels were evaluated with estimated rectal toxicity. Results: While AXB showed insignificant difference of target dose coverage, Rwall doses underestimated by up to 20% in dose optimization for the Rwhole than Rwall at all dose range except for the maximum dose. As dose optimization for Rwall was applied, the Rwall doses presented dose error less than 3% between dose calculation algorithm except for overestimation of maximum rectal dose up to 5% in PBC. Dose optimization for Rwhole caused dose difference of Rwall especially at intermediate doses. Conclusion: Dose optimization for Rwall could be suggested for more accurate prediction of rectal wall dose prediction and dose perturbation effect by air cavity in IMRT for prostate cancer. This research was supported by the Leading Foreign Research Institute Recruitment Program through the National Research Foundation of Korea

  18. A silicon strip detector dose magnifying glass for IMRT dosimetry

    SciTech Connect

    Wong, J. H. D.; Carolan, M.; Lerch, M. L. F.; Petasecca, M.; Khanna, S.; Perevertaylo, V. L.; Metcalfe, P.; Rosenfeld, A. B.

    2010-02-15

    Purpose: Intensity modulated radiation therapy (IMRT) allows the delivery of escalated radiation dose to tumor while sparing adjacent critical organs. In doing so, IMRT plans tend to incorporate steep dose gradients at interfaces between the target and the organs at risk. Current quality assurance (QA) verification tools such as 2D diode arrays, are limited by their spatial resolution and conventional films are nonreal time. In this article, the authors describe a novel silicon strip detector (CMRP DMG) of high spatial resolution (200 {mu}m) suitable for measuring the high dose gradients in an IMRT delivery. Methods: A full characterization of the detector was performed, including dose per pulse effect, percent depth dose comparison with Farmer ion chamber measurements, stem effect, dose linearity, uniformity, energy response, angular response, and penumbra measurements. They also present the application of the CMRP DMG in the dosimetric verification of a clinical IMRT plan. Results: The detector response changed by 23% for a 390-fold change in the dose per pulse. A correction function is derived to correct for this effect. The strip detector depth dose curve agrees with the Farmer ion chamber within 0.8%. The stem effect was negligible (0.2%). The dose linearity was excellent for the dose range of 3-300 cGy. A uniformity correction method is described to correct for variations in the individual detector pixel responses. The detector showed an over-response relative to tissue dose at lower photon energies with the maximum dose response at 75 kVp nominal photon energy. Penumbra studies using a Varian Clinac 21EX at 1.5 and 10.0 cm depths were measured to be 2.77 and 3.94 mm for the secondary collimators, 3.52 and 5.60 mm for the multileaf collimator rounded leaf ends, respectively. Point doses measured with the strip detector were compared to doses measured with EBT film and doses predicted by the Philips Pinnacle treatment planning system. The differences were 1

  19. Safety Data Sheets (SDS) for NBL Program Office Certified Reference

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Materials (CRM) | U.S. DOE Office of Science (SC) Safety Data Sheets (SDS) for NBL Program Office Certified Reference Materials (CRM) NBL Program Office NBL PO Home About Programs Certified Reference Materials (CRMs) NEPA Documents News Safety Data Sheets (SDS) for NBL Program Office Certified Reference Materials (CRM) Contact Information NBL Program Office U.S. Department of Energy Building 201 9800 South Cass Avenue Argonne, IL 60439-4899 P: (630) 252-2442 (NBL PO) P: (630) 252-2767 (CRM

  20. Monte Carlo calculations for reference dosimetry of electron beams with the PTW Roos and NE2571 ion chambers

    SciTech Connect

    Muir, B. R. Rogers, D. W. O.

    2013-12-15

    Purpose: To investigate recommendations for reference dosimetry of electron beams and gradient effects for the NE2571 chamber and to provide beam quality conversion factors using Monte Carlo simulations of the PTW Roos and NE2571 ion chambers. Methods: The EGSnrc code system is used to calculate the absorbed dose-to-water and the dose to the gas in fully modeled ion chambers as a function of depth in water. Electron beams are modeled using realistic accelerator simulations as well as beams modeled as collimated point sources from realistic electron beam spectra or monoenergetic electrons. Beam quality conversion factors are calculated with ratios of the doses to water and to the air in the ion chamber in electron beams and a cobalt-60 reference field. The overall ion chamber correction factor is studied using calculations of water-to-air stopping power ratios. Results: The use of an effective point of measurement shift of 1.55 mm from the front face of the PTW Roos chamber, which places the point of measurement inside the chamber cavity, minimizes the difference betweenR{sub 50}, the beam quality specifier, calculated from chamber simulations compared to that obtained using depth-dose calculations in water. A similar shift minimizes the variation of the overall ion chamber correction factor with depth to the practical range and reduces the root-mean-square deviation of a fit to calculated beam quality conversion factors at the reference depth as a function of R{sub 50}. Similarly, an upstream shift of 0.34 r{sub cav} allows a more accurate determination of R{sub 50} from NE2571 chamber calculations and reduces the variation of the overall ion chamber correction factor with depth. The determination of the gradient correction using a shift of 0.22 r{sub cav} optimizes the root-mean-square deviation of a fit to calculated beam quality conversion factors if all beams investigated are considered. However, if only clinical beams are considered, a good fit to results for

  1. In vitro study of cell survival following dynamic MLC intensity-modulated radiation therapy dose delivery

    SciTech Connect

    Moiseenko, Vitali; Duzenli, Cheryl; Durand, Ralph E.

    2007-04-15

    The possibility of reduced cell kill following intensity-modulated radiation therapy (IMRT) compared to conventional radiation therapy has been debated in the literature. This potential reduction in cell kill relates to prolonged treatment times typical of IMRT dose delivery and consequently increased repair of sublethal lesions. While there is some theoretical support to this reduction in cell kill published in the literature, direct experimental evidence specific to IMRT dose delivery patterns is lacking. In this study we present cell survival data for three cell lines: Chinese hamster V79 fibroblasts, human cervical carcinoma, SiHa and colon adenocarcinoma, WiDr. Cell survival was obtained for 2.1 Gy delivered as acute dose with parallel-opposed pair (POP), irradiation time 75 s, which served as a reference; regular seven-field IMRT, irradiation time 5 min; and IMRT with a break for multiple leaf collimator (MLC) re-initialization after three fields were delivered, irradiation time 10 min. An actual seven-field dynamic MLC IMRT plan for a head and neck patient was used. The IMRT plan was generated for a Varian EX or iX linear accelerator with 120 leaf Millenium MLC. Survival data were also collected for doses 1x, 2x, 3x, 4x, and 5x 2.1 Gy to establish parameters of the linear-quadratic equation describing survival following acute dose delivery. Cells were irradiated inside an acrylic cylindrical phantom specifically designed for this study. Doses from both IMRT and POP were validated using ion chamber measurements. A reproducible increase in cell survival was observed following IMRT dose delivery. This increase varied from small for V79, with a surviving fraction of 0.8326 following POP vs 0.8420 following uninterrupted IMRT, to very pronounced for SiHa, with a surviving fraction of 0.3903 following POP vs 0.5330 for uninterrupted IMRT. When compared to IMRT or IMRT with a break for MLC initialization, cell survival following acute dose delivery was

  2. Errors and Uncertainties in Dose Reconstruction for Radiation Effects Research

    SciTech Connect

    Strom, Daniel J.

    2008-04-14

    Dose reconstruction for studies of the health effects of ionizing radiation have been carried out for many decades. Major studies have included Japanese bomb survivors, atomic veterans, downwinders of the Nevada Test Site and Hanford, underground uranium miners, and populations of nuclear workers. For such studies to be credible, significant effort must be put into applying the best science to reconstructing unbiased absorbed doses to tissues and organs as a function of time. In many cases, more and more sophisticated dose reconstruction methods have been developed as studies progressed. For the example of the Japanese bomb survivors, the dose surrogate “distance from the hypocenter” was replaced by slant range, and then by TD65 doses, DS86 doses, and more recently DS02 doses. Over the years, it has become increasingly clear that an equal level of effort must be expended on the quantitative assessment of uncertainty in such doses, and to reducing and managing uncertainty. In this context, this paper reviews difficulties in terminology, explores the nature of Berkson and classical uncertainties in dose reconstruction through examples, and proposes a path forward for Joint Coordinating Committee for Radiation Effects Research (JCCRER) Project 2.4 that requires a reasonably small level of effort for DOSES-2008.

  3. Oil, gas, and helium references index for the Navajo Indian Reservation, Arizona, New Mexico, and Utah. [223 references

    SciTech Connect

    Bliss, J.D.

    1982-02-01

    The references which are listed in this document represent the readily available literature about oil, gas, and helium resources on or adjacent to the Navajo Indian Reservation. They were selected during the developmental phase of the Navajo Resource Information System (NRIS). The system contains a set of computerized data bases addressing various resource categories. The system was developed by the US Geological Survey in coordination with the Minerals Department, Navajo Nation. Literature is the foundation of resource assessment and the absence of such a compilation for the Navajo Nation prompted the development of a reference data base entitled nref, which consists of over 1300 records. The following reference list of approximately 230 references was selected from those citations which contain oil, gas, or helium in a keyword list attached to each citation. References to general literature on oil, gas, or helium may also be present. The main attempt was to list most of the literature published in the 1960's and 1970's for areas in, or adjacent to, the Navajo Reservation. References published prior to this were included only if readily available or if they seemed to represent areas or topics not covered in later publications. 223 references.

  4. WE-E-18A-10: Comparison of Patient Dose and Vessel Visibility Between Antiscatter Grid Removal and Lower Angiographic Radiation Dose Settings for Pediatric Imaging: A Preclinical Investigation

    SciTech Connect

    Strauss, K; Nachabe, R; Racadio, J

    2014-06-15

    Purpose: To define an alternative to antiscatter grid (ASG) removal in angiographic systems which achieves similar patient dose reduction as ASG removal without degrading image quality during pediatric imaging. Methods: This study was approved by the local institution animal care and use committee (IACUC). Six different digital subtraction angiography settings were evaluated that altered the mAs, (100, 70, 50, 35, 25, 17.5% of reference mAs) with and without ASG. Three pigs of 5, 15, and 20 kg (9, 15, and 17 cm abdominal thickness; smaller than a newborn, average 3 yr old, and average 10 year old human abdomen respectively) were imaged using the six dose settings with and without ASG. Image quality was defined as the order of vessel branch that is visible relative to the injected vessel. Five interventional radiologists evaluated all images. Image quality and patient dose were statistically compared using analysis of variance and receiver operating curve (ROC) analysis to define the preferred dose level and use of ASG for a minimum visibility of 2nd or 3rd order branches of vessel visibility. Results: ASG grid removal reduces dose by 26% with reduced image quality. Only with the ASG present can 3rd order branches be visualized; 100% mAs is required for 9 cm pig while 70% mAs is adequate for the larger pigs. 2nd order branches can be visualized with ASG at 17.5% mAs for all three pig sizes. Without the ASG, 50%, 35% and 35% mAs is required for smallest to largest pig. Conclusion: Removing ASG reduces patient dose and image quality. Image quality can be improved with the ASG present while further reducing patient dose if an optimized radiographic technique is used. Rami Nachabe is an employee of Philips Health Care; Keith Strauss is a paid consultant of Philips Health Care.

  5. Shared dosimetry error in epidemiological dose-response analyses

    SciTech Connect

    Stram, Daniel O.; Preston, Dale L.; Sokolnikov, Mikhail; Napier, Bruce; Kopecky, Kenneth J.; Boice, John; Beck, Harold; Till, John; Bouville, Andre; Zeeb, Hajo

    2015-03-23

    Radiation dose reconstruction systems for large-scale epidemiological studies are sophisticated both in providing estimates of dose and in representing dosimetry uncertainty. For example, a computer program was used by the Hanford Thyroid Disease Study to provide 100 realizations of possible dose to study participants. The variation in realizations reflected the range of possible dose for each cohort member consistent with the data on dose determinates in the cohort. Another example is the Mayak Worker Dosimetry System 2013 which estimates both external and internal exposures and provides multiple realizations of "possible" dose history to workers given dose determinants. This paper takes up the problem of dealing with complex dosimetry systems that provide multiple realizations of dose in an epidemiologic analysis. In this paper we derive expected scores and the information matrix for a model used widely in radiation epidemiology, namely the linear excess relative risk (ERR) model that allows for a linear dose response (risk in relation to radiation) and distinguishes between modifiers of background rates and of the excess risk due to exposure. We show that treating the mean dose for each individual (calculated by averaging over the realizations) as if it was true dose (ignoring both shared and unshared dosimetry errors) gives asymptotically unbiased estimates (i.e. the score has expectation zero) and valid tests of the null hypothesis that the ERR slope ? is zero. Although the score is unbiased the information matrix (and hence the standard errors of the estimate of ?) is biased for ??0 when ignoring errors in dose estimates, and we show how to adjust the information matrix to remove this bias, using the multiple realizations of dose. The use of these methods in the context of several studies including, the Mayak Worker Cohort, and the U.S. Atomic Veterans Study, is discussed.

  6. Shared dosimetry error in epidemiological dose-response analyses

    DOE PAGES [OSTI]

    Stram, Daniel O.; Preston, Dale L.; Sokolnikov, Mikhail; Napier, Bruce; Kopecky, Kenneth J.; Boice, John; Beck, Harold; Till, John; Bouville, Andre; Zeeb, Hajo

    2015-03-23

    Radiation dose reconstruction systems for large-scale epidemiological studies are sophisticated both in providing estimates of dose and in representing dosimetry uncertainty. For example, a computer program was used by the Hanford Thyroid Disease Study to provide 100 realizations of possible dose to study participants. The variation in realizations reflected the range of possible dose for each cohort member consistent with the data on dose determinates in the cohort. Another example is the Mayak Worker Dosimetry System 2013 which estimates both external and internal exposures and provides multiple realizations of "possible" dose history to workers given dose determinants. This paper takesmore » up the problem of dealing with complex dosimetry systems that provide multiple realizations of dose in an epidemiologic analysis. In this paper we derive expected scores and the information matrix for a model used widely in radiation epidemiology, namely the linear excess relative risk (ERR) model that allows for a linear dose response (risk in relation to radiation) and distinguishes between modifiers of background rates and of the excess risk due to exposure. We show that treating the mean dose for each individual (calculated by averaging over the realizations) as if it was true dose (ignoring both shared and unshared dosimetry errors) gives asymptotically unbiased estimates (i.e. the score has expectation zero) and valid tests of the null hypothesis that the ERR slope β is zero. Although the score is unbiased the information matrix (and hence the standard errors of the estimate of β) is biased for β≠0 when ignoring errors in dose estimates, and we show how to adjust the information matrix to remove this bias, using the multiple realizations of dose. The use of these methods in the context of several studies including, the Mayak Worker Cohort, and the U.S. Atomic Veterans Study, is discussed.« less

  7. A set of 4D pediatric XCAT reference phantoms for multimodality research

    SciTech Connect

    Norris, Hannah Zhang, Yakun; Bond, Jason; Sturgeon, Gregory M.; Samei, E.; Segars, W. P.; Minhas, Anum; Frush, D.; Tward, Daniel J.; Ratnanather, J. T.; Miller, M. I.

    2014-03-15

    Purpose: The authors previously developed an adult population of 4D extended cardiac-torso (XCAT) phantoms for multimodality imaging research. In this work, the authors develop a reference set of 4D pediatric XCAT phantoms consisting of male and female anatomies at ages of newborn, 1, 5, 10, and 15 years. These models will serve as the foundation from which the authors will create a vast population of pediatric phantoms for optimizing pediatric CT imaging protocols. Methods: Each phantom was based on a unique set of CT data from a normal patient obtained from the Duke University database. The datasets were selected to best match the reference values for height and weight for the different ages and genders according to ICRP Publication 89. The major organs and structures were segmented from the CT data and used to create an initial pediatric model defined using nonuniform rational B-spline surfaces. The CT data covered the entire torso and part of the head. To complete the body, the authors manually added on the top of the head and the arms and legs using scaled versions of the XCAT adult models or additional models created from cadaver data. A multichannel large deformation diffeomorphic metric mapping algorithm was then used to calculate the transform from a template XCAT phantom (male or female 50th percentile adult) to the target pediatric model. The transform was applied to the template XCAT to fill in any unsegmented structures within the target phantom and to implement the 4D cardiac and respiratory models in the new anatomy. The masses of the organs in each phantom were matched to the reference values given in ICRP Publication 89. The new reference models were checked for anatomical accuracy via visual inspection. Results: The authors created a set of ten pediatric reference phantoms that have the same level of detail and functionality as the original XCAT phantom adults. Each consists of thousands of anatomical structures and includes parameterized models

  8. FAQS Reference Guide – Safety Software Quality Assurance

    Energy.gov [DOE]

    This reference guide has been developed to address the competency statements in the (March 2011) edition of DOE-STD-1172-2011, Safety Software Quality Assurance Functional Area Qualification Standard.

  9. Archive Reference Buildings by Building Type: Fast food

    Energy.gov [DOE]

    Here you will find past versions of the reference buildings for new construction commercial buildings, organized by building type and location. A summary of building types and climate zones is...

  10. Reference Links | U.S. DOE Office of Science (SC)

    Office of Science (SC)

    IL 60439 P: (630) 252-2110 Kenneth Tarcza U.S. Department of Energy 200 Administration Road Oak Ridge, TN 37830 P: (865) 576-4444 Privacy Act Reference Links Print Text Size: A A ...

  11. FAQS Reference Guide – NNSA Package Certification Engineer

    Energy.gov [DOE]

    This reference guide has been developed to address the competency statements in the April 2016 edition of DOE-Standard (STD)-1126-2016, NNSA Package Certification Engineer Functional Area Qualification Standard

  12. Archive Reference Buildings by Building Type: Primary school

    Energy.gov [DOE]

    Here you will find past versions of the reference buildings for new construction commercial buildings, organized by building type and location. A summary of building types and climate zones is...

  13. Reference aquaplanet climate in the Community Atmosphere Model, Version 5

    DOE PAGES [OSTI]

    Medeiros, Brian; Williamson, David L.; Olson, Jerry G.

    2016-03-18

    In this study, fundamental characteristics of the aquaplanet climate simulated by the Community Atmosphere Model, Version 5.3 (CAM5.3) are presented. The assumptions and simplifications of the configuration are described. A 16 year long, perpetual equinox integration with prescribed SST using the model’s standard 18 grid spacing is presented as a reference simulation. Statistical analysis is presented that shows similar aquaplanet configurations can be run for about 2 years to obtain robust climatological structures, including global and zonal means, eddy statistics, and precipitation distributions. Such a simulation can be compared to the reference simulation to discern differences in the climate, includingmore » an assessment of confidence in the differences. To aid such comparisons, the reference simulation has been made available via earthsystemgrid.org. Examples are shown comparing the reference simulation with simulations from the CAM5 series that make different microphysical assumptions and use a different dynamical core.« less

  14. Reference Linking at the DOE Office of Scientific and Technical...

    Office of Scientific and Technical Information (OSTI)

    Reference Linking at the DOE Office of Scientific and Technical Information The usefulness of electronic R&D reports, such as those accessed via the DOE Information Bridge, is ...

  15. Archive Reference Buildings by Building Type: Secondary school

    Energy.gov [DOE]

    Here you will find past versions of the reference buildings for new construction commercial buildings, organized by building type and location. A summary of building types and climate zones is...

  16. Desk Reference on DOE-Flex | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Desk Reference on DOE-Flex (July 2011) (1.14 MB) Responsible Contacts Bruce Murray HR Policy Advisor E-mail bruce.murray@hq.doe.gov Phone 202-586-3372 More Documents & Publications ...

  17. Archive Reference Buildings by Building Type: Stand-alone retail

    Energy.gov [DOE]

    Here you will find past versions of the reference buildings for new construction commercial buildings, organized by building type and location. A summary of building types and climate zones is...

  18. Archive Reference Buildings by Building Type: Small office

    Energy.gov [DOE]

    Here you will find past versions of the reference buildings for new construction commercial buildings, organized by building type and location. A summary of building types and climate zones is...

  19. FAQS Reference Guide – Senior Technical Safety Manager

    Office of Energy Efficiency and Renewable Energy (EERE)

    This reference guide has been developed to address the competency statements in the March 2013 edition of DOE-Standard (STD)-1175-2013, Senior Technical Safety Manager Functional Area Qualification Standard.

  20. Windmills and wind power: a bibliography. [514 references

    SciTech Connect

    Vance, M.

    1981-01-01

    This bibliography contains 125 periodical references to windmills, 7 to wind power, and 382 in an architectural series, all arranged alphabetically by author. These are followed by a Title Index and a Keyword-in-Title Index. (DCK)

  1. Archive Reference Buildings by Building Type: Strip mall

    Energy.gov [DOE]

    Here you will find past versions of the reference buildings for new construction commercial buildings, organized by building type and location. A summary of building types and climate zones is...

  2. Existing Commercial Reference Buildings Constructed Before 1980 — Archive

    Energy.gov [DOE]

    Here you will find past versions of the commercial reference building models for existing buildings constructed before 1980, organized by building type and location. A summary of building types and...

  3. One in five online scholarly articles affected by 'reference...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    content drift to which references to web resources included in STM articles are subject. ... the transition from a paper-based to a web-based scholarly communication system has ...

  4. Microsoft Word - Cross Reference Matrix Introduction.doc

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Cross Reference Matrix Introduction This cross-reference matrix is intended to provide NRC reviewers with an aid to show where Yucca Mountain Review Plan (YMRP) (NUREG-1804) acceptance criteria as well as 10 CFR Part 63 regulations are addressed within the Yucca Mountain Repository License Application. This matrix does not assert compliance with 10 CFR Part 63 or the YMRP; it is provided as an aid to reviewers. The information contained in this matrix is generally repeated in tables at the

  5. Operational Plan and Desktop Reference for the Veterans Employment Program

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    | Department of Energy Operational Plan and Desktop Reference for the Veterans Employment Program Operational Plan and Desktop Reference for the Veterans Employment Program DOE Guide to the President's Initiative for Veterans Employment. Includes: Department-wide policies and procedures, goals and objectives, DVAAP, information on veterans' preference and special hiring authorities, procedures for use of vocational rehabilitation programs, sources for finding veterans, and links to websites.

  6. Reference Manual and Procedures for Implementation of PURPA Standards in

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    EPACT 2005 (March 2006) | Department of Energy EPACT 2005 (March 2006) Reference Manual and Procedures for Implementation of PURPA Standards in EPACT 2005 (March 2006) This reference manual is intended to be used as an aid to state commissions and utilities as they consider the new federal standards that are part of the Energy Policy Act of 2005 (Subtitle E, "Amendments to PURPA," sections 1251, 1252, and 1254). It summarizes state commission and unregulated utility requirements

  7. EIA-748C 32 EVMS Guidelines Reference | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    EIA-748C 32 EVMS Guidelines Reference EIA-748C 32 EVMS Guidelines Reference 32 EVMS Guidelines are broken down into 5 areas: Organization, Planning & Budgeting, Accounting, Analysis, and Revisions. THis chart identified all 32 guidelines and the subject area they al into. Download 32 EVMS Guidelines Chart (664.13 KB) Key Resources Internal DOE Tools PMCDP EVMS PARS IIe FPD Resource Center PM Newsletter Forms and Templates More Documents & Publications EVMS Review Procedure DOE EVMSIH and

  8. Department of Energy's Hurricane Response Chronology, as Referred to by

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Secretary Bodman at Today's Senate Energy and Natural Resources Committee Hearing | Department of Energy Hurricane Response Chronology, as Referred to by Secretary Bodman at Today's Senate Energy and Natural Resources Committee Hearing Department of Energy's Hurricane Response Chronology, as Referred to by Secretary Bodman at Today's Senate Energy and Natural Resources Committee Hearing October 27, 2005 - 12:34pm Addthis Week 1: August 21 - 27, 2005 Katrina strikes south Florida 8/25 and

  9. The Hydrogen Laboratory and The Brazilian Reference Center for Hydrogen

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy | Department of Energy The Hydrogen Laboratory and The Brazilian Reference Center for Hydrogen Energy The Hydrogen Laboratory and The Brazilian Reference Center for Hydrogen Energy Presentation given by Newton Pimenta and Cristiano Pinto of the State University of Campinas at the CNG and Hydrogen Lessons Learned Workshop on December 10, 2009 cng_h2_workshop_12_ohi.pdf (621.46 KB) More Documents & Publications Overview of DOE - DOT December 2009 CNG and Hydrogen Fuels Workshop

  10. Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    3, 3/11/13) Construction Subcontract Appendix SFA-1 Page 1 of 8 Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference (a) The Federal Acquisition Regulation (FAR) and the Department of Energy Acquisition Regulation (DEAR) clauses which are incorporated by reference herein shall have the same force and effect as if printed in full text. (b) Full text of the referenced clauses may be accessed electronically at website address: http://www.acquisition.gov/far/ or

  11. Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    , 7/14/14) Appendix SFA-1 Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference (a) The Federal Acquisition Regulation (FAR) and the Department of Energy Acquisition Regulation (DEAR) clauses which are incorporated by reference herein shall have the same force and effect as if printed in full text. (b) Full text of the referenced clauses may be accessed electronically at the following website addresses: * FAR: http://farsite.hill.af.mil/vffara.htm and * DEAR:

  12. Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    , 7/14/14) Appendix SFA-1 Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference (a) The Federal Acquisition Regulation (FAR) and the Department of Energy Acquisition Regulation (DEAR) clauses which are incorporated by reference herein shall have the same force and effect as if printed in full text. (b) Full text of the referenced clauses may be accessed electronically at the following website addresses: * FAR: http://farsite.hill.af.mil/vffara.htm and * DEAR:

  13. Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    , 7/14/14) Appendix SFA-1 Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference (a) The Federal Acquisition Regulation (FAR) and the Department of Energy Acquisition Regulation (DEAR) clauses which are incorporated by reference herein shall have the same force and effect as if printed in full text. (b) Full text of the referenced clauses may be accessed electronically at the following website addresses: * FAR: http://farsite.hill.af.mil/vffara.htm and * DEAR:

  14. Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    , 7/14/14) Appendix SFA-1 Page 1 of 5 Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference (a) The Federal Acquisition Regulation (FAR) and the Department of Energy Acquisition Regulation (DEAR) clauses which are incorporated by reference herein shall have the same force and effect as if printed in full text. (b) Full text of the referenced clauses may be accessed electronically at website addresses: FAR: http://farsite.hill.af.mil/vffara.htm DEAR:

  15. Biomass Scenario Model Documentation: Data and References (Technical

    Office of Scientific and Technical Information (OSTI)

    Report) | SciTech Connect Technical Report: Biomass Scenario Model Documentation: Data and References Citation Details In-Document Search Title: Biomass Scenario Model Documentation: Data and References The Biomass Scenario Model (BSM) is a system dynamics model that represents the entire biomass-to-biofuels supply chain, from feedstock to fuel use. The BSM is a complex model that has been used for extensive analyses; the model and its results can be better understood if input data used for

  16. L.45 EXHIBIT E PAST PERFORMANCE REFERENCE INFORMATION FORM

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    L.45 EXHIBIT E PAST PERFORMANCE REFERENCE INFORMATION FORM 1. Complete name of Government agency, commercial firm, or other organization 2. Complete address 3. Contract number or other reference and type 4. Date of contract 5. Date work commenced 6. Date work was completed or scheduled to be completed 7. Contract Type and Contract Value 8. Final amount invoiced or amount invoiced to date 9a. Technical point of contact (name, title, company/agency, address, telephone number, fax number, and

  17. Salton Sea Scientific Drilling Project Archival Reference, Final Draft

    SciTech Connect

    1991-03-13

    This report provides an archival reference to the scientific information and other pertinent documents and materials associated with the Salton Sea Scientific Drilling Project (SSDP). This archiving process ensures that valuable technical data and information obtained during the life of the project can be retrieved, organized and maintained as a historical record for future reference. This paper describes the background of the project and the process used for archiving the materials. [DJE-2005

  18. COTNAINSET REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGE OF

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    COTNAINSET REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGE OF NAME OF OFFEROR OR CONTRACTOR D-M039/071-0522 5 See Schedule ITE N. SPPESSERICS UANTITY UNIT UNIT PRICE AMOUNT (A) (B) (C) (D) (E) (F) Small Business Administration 965502193 NORTH WIND SOLUTIONS Attn: JADE SIDDOWAY 1425 HIGHAM STREET IDAHO FALLS ID 834021513 2085570857 IGF: :OT: :IGF Base - The Purpose of this Contract is to provide for for Technical, Environmental, and Programt Management Support Services- SBA Reference

  19. Novel methods of measuring single scan dose profiles and cumulative dose in CT

    SciTech Connect

    Nakonechny, K.D.; Fallone, B.G.; Rathee, S.

    2005-01-01

    Computed tomography dose index (CTDI) is a conventional indicator of the patient dose in CT studies. It is measured as the integration of the longitudinal single scan dose profile (SSDP) by using a 100-mm-long pencil ionization chamber and a single axial scan. However, the assumption that most of the SSDP is contained within the chamber length may not be valid even for thin slices. We have measured the SSDPs for several slice widths on two CT scanners using a PTW diamond detector placed in a 300 mmx200 mmx300 mm water-equivalent plastic phantom. One SSDP was also measured using lithium fluoride (LiF) TLDs and an IC-10 small volume ion chamber, verifying the general shape of the SSDP measured using the diamond detector. Standard cylindrical PMMA CT phantoms (140 mm length) were also used to qualitatively study the effects of phantom shape, length, and composition on the measured SSDP. The SSDPs measured with the diamond detector in the water-equivalent phantom were numerically integrated to calculate the relative accumulated dose D{sub L}(0){sub calc} at the center of various scan lengths L. D{sub L}(0){sub calc} reached an equilibrium value for L>300 mm, suggesting the need for phantoms longer than standard CT dose phantoms. We have also measured the absolute accumulated dose using an IC-10 small volume ion chamber, D{sub L}(0){sub SV}, at three points in the phantom cross section for several beamwidths and scan lengths. For one CT system, these measurements were made in both axial and helical scanning modes. The absolute CTDI{sub 100}, measured with a 102 mm active length pencil chamber, were within 4% of D{sub L}(0){sub SV} measured with the small volume ion chamber for L{approx_equal}100 mm suggesting that nonpencil chambers can be successfully used for CT dosimetry. For nominal beam widths ranging from 3 to 20 mm and for L{approx_equal}250 mm, D{sub L}(0){sub SV} values at the center of the water-equivalent phantom's elliptic cross section were approximately 25

  20. Dose discrepancies in the buildup region and their impact on dose calculations for IMRT fields

    SciTech Connect

    Hsu, Shu-Hui; Moran, Jean M.; Chen Yu; Kulasekere, Ravi; Roberson, Peter L.

    2010-05-15

    Purpose: Dose accuracy in the buildup region for radiotherapy treatment planning suffers from challenges in both measurement and calculation. This study investigates the dosimetry in the buildup region at normal and oblique incidences for open and IMRT fields and assesses the quality of the treatment planning calculations. Methods: This study was divided into three parts. First, percent depth doses and profiles (for 5x5, 10x10, 20x20, and 30x30 cm{sup 2} field sizes at 0 deg., 45 deg., and 70 deg. incidences) were measured in the buildup region in Solid Water using an Attix parallel plate chamber and Kodak XV film, respectively. Second, the parameters in the empirical contamination (EC) term of the convolution/superposition (CVSP) calculation algorithm were fitted based on open field measurements. Finally, seven segmental head-and-neck IMRT fields were measured on a flat phantom geometry and compared to calculations using {gamma} and dose-gradient compensation (C) indices to evaluate the impact of residual discrepancies and to assess the adequacy of the contamination term for IMRT fields. Results: Local deviations between measurements and calculations for open fields were within 1% and 4% in the buildup region for normal and oblique incidences, respectively. The C index with 5%/1 mm criteria for IMRT fields ranged from 89% to 99% and from 96% to 98% at 2 mm and 10 cm depths, respectively. The quality of agreement in the buildup region for open and IMRT fields is comparable to that in nonbuildup regions. Conclusions: The added EC term in CVSP was determined to be adequate for both open and IMRT fields. Due to the dependence of calculation accuracy on (1) EC modeling, (2) internal convolution and density grid sizes, (3) implementation details in the algorithm, and (4) the accuracy of measurements used for treatment planning system commissioning, the authors recommend an evaluation of the accuracy of near-surface dose calculations as a part of treatment planning

  1. Radiation Therapy Photon Beams Dose Conformation According to Dose Distribution Around Intracavitary-Applied Brachytherapy Sources

    SciTech Connect

    Jurkovic, Slaven Zauhar, Gordana; Faj, Dario; Radojcic, Deni Smilovic; Svabic, Manda

    2010-04-01

    Intracavitary application of brachytherapy sources followed by external beam radiation is essential for the local treatment of carcinoma of the cervix. Due to very high doses to the central portion of the target volume delivered by brachytherapy sources, this part of the target volume must be shielded while being irradiated by photon beams. Several shielding techniques are available, from rectangular block and standard cervix wedge to more precise, customized step wedge filters. Because the calculation of a step wedge filter's shape was usually based on effective attenuation coefficient, an approach that accounts, in a more precise way, for the scattered radiation, is suggested. The method was verified under simulated clinical conditions using film dosimetry. Measured data for various compensators were compared to the numerically determined sum of the dose distribution around brachytherapy sources and one of compensated beam. Improvements in total dose distribution are demonstrated, using our method. Agreement between calculation and measurements were within 3%. Sensitivity of the method on sources displacement during treatment has also been investigated.

  2. TSD-DOSE: A radiological dose assessment model for treatment, storage, and disposal facilities

    SciTech Connect

    Pfingston, M.; Arnish, J.; LePoire, D.; Chen, S.-Y.

    1998-10-14

    Past practices at US Department of Energy (DOE) field facilities resulted in the presence of trace amounts of radioactive materials in some hazardous chemical wastes shipped from these facilities. In May 1991, the DOE Office of Waste Operations issued a nationwide moratorium on shipping all hazardous waste until procedures could be established to ensure that only nonradioactive hazardous waste would be shipped from DOE facilities to commercial treatment, storage, and disposal (TSD) facilities. To aid in assessing the potential impacts of shipments of mixed radioactive and chemically hazardous wastes, a radiological assessment computer model (or code) was developed on the basis of detailed assessments of potential radiological exposures and doses for eight commercial hazardous waste TSD facilities. The model, called TSD-DOSE, is designed to incorporate waste-specific and site-specific data to estimate potential radiological doses to on-site workers and the off-site public from waste-handling operations at a TSD facility. The code is intended to provide both DOE and commercial TSD facilities with a rapid and cost-effective method for assessing potential human radiation exposures from the processing of chemical wastes contaminated with trace amounts of radionuclides.

  3. Technical Review of SRS Dose Reconstrruction Methods Used By CDC

    SciTech Connect

    Simpkins, Ali, A

    2005-07-20

    At the request of the Centers for Disease Control and Prevention (CDC), a subcontractor Advanced Technologies and Laboratories International, Inc.(ATL) issued a draft report estimating offsite dose as a result of Savannah River Site operations for the period 1954-1992 in support of Phase III of the SRS Dose Reconstruction Project. The doses reported by ATL differed than those previously estimated by Savannah River Site SRS dose modelers for a variety of reasons, but primarily because (1) ATL used different source terms, (2) ATL considered trespasser/poacher scenarios and (3) ATL did not consistently use site-specific parameters or correct usage parameters. The receptors with the highest dose from atmospheric and liquid pathways were within about a factor of four greater than dose values previously reported by SRS. A complete set of technical comments have also been included.

  4. SU-E-I-02: A Framework to Perform Batch Simulations of Computational Voxel Phantoms to Study Organ Doses in Computed Tomography Using a Commercial Monte Carlo Software Package

    SciTech Connect

    Bujila, R; Nowik, P; Poludniowski, G

    2014-06-01

    Purpose: ImpactMC (CT Imaging, Erlangen, Germany) is a Monte Carlo (MC) software package that offers a GPU enabled, user definable and validated method for 3D dose distribution calculations for radiography and Computed Tomography (CT). ImpactMC, in and of itself, offers limited capabilities to perform batch simulations. The aim of this work was to develop a framework for the batch simulation of absorbed organ dose distributions from CT scans of computational voxel phantoms. Methods: The ICRP 110 adult Reference Male and Reference Female computational voxel phantoms were formatted into compatible input volumes for MC simulations. A Matlab (The MathWorks Inc., Natick, MA) script was written to loop through a user defined set of simulation parameters and 1) generate input files required for the simulation, 2) start the MC simulation, 3) segment the absorbed dose for organs in the simulated dose volume and 4) transfer the organ doses to a database. A demonstration of the framework is made where the glandular breast dose to the adult Reference Female phantom, for a typical Chest CT examination, is investigated. Results: A batch of 48 contiguous simulations was performed with variations in the total collimation and spiral pitch. The demonstration of the framework showed that the glandular dose to the right and left breast will vary depending on the start angle of rotation, total collimation and spiral pitch. Conclusion: The developed framework provides a robust and efficient approach to performing a large number of user defined MC simulations with computational voxel phantoms in CT (minimal user interaction). The resulting organ doses from each simulation can be accessed through a database which greatly increases the ease of analyzing the resulting organ doses. The framework developed in this work provides a valuable resource when investigating different dose optimization strategies in CT.

  5. SU-E-T-315: The Change of Optically Stimulated Luminescent Dosimeters (OSLDs) Sensitivity by Accumulated Dose and High Dose

    SciTech Connect

    Han, S; Jung, H; Kim, M; Ji, Y; Kim, K [University of Science and Technology, Daejeon (Korea, Republic of); Korea Institute of Radiological and Medical Sciences, Seoul (Korea, Republic of); Choi, S; Park, S; Yoo, H [Korea Institute of Radiological and Medical Sciences, Seoul (Korea, Republic of); Yi, C [Korea Research Institute of Standards and Science, Daejeon (Korea, Republic of)

    2014-06-01

    Purpose: The objective of this study is to evaluate radiation sensitivity of optical stimulated luminance dosimeters (OSLDs) by accumulated dose and high dose. Methods: This study was carried out in Co-60 unit (Theratron 780, AECL, and Canada) and used InLight MicroStar reader (Landauer, Inc., Glenwood, IL) for reading. We annealed for 30 min using optical annealing system which contained fluorescent lamps (Osram lumilux, 24 W, 280 ?780 nm). To evaluate change of OSLDs sensitivity by repeated irradiation, the dosimeters were repeatedly irradiated with 1 Gy. And whenever a repeated irradiation, we evaluated OSLDs sensitivity. To evaluate OSLDs sensitivity after accumulated dose with 5 Gy, We irradiated dose accumulatively (from 1 Gy to 5 Gy) without annealing. And OSLDs was also irradiated with 15, 20, 30 Gy to certify change of OSLDs sensitivity after high dose irradiation. After annealing them, they were irradiated with 1Gy, repeatedly. Results: The OSLDs sensitivity increased up to 3% during irradiating seven times and decreased continuously above 8 times. That dropped by about 0.35 Gy per an irradiation. Finally, after 30 times irradiation, OSLDs sensitivity decreased by about 7%. For accumulated dose from 1 Gy to 5 Gy, OSLDs sensitivity about 1 Gy increased until 4.4% after second times accumulated dose compared with before that. OSLDs sensitivity about 1 Gy decreased by 1.6% in five times irradiation. When OSLDs were irradiated ten times with 1Gy after irradiating high dose (10, 15, 20 Gy), OSLDs sensitivity decreased until 6%, 9%, 12% compared with it before high dose irradiation, respectively. Conclusion: This study certified OSLDs sensitivity by accumulated dose and high dose. When irradiated with 1Gy, repeatedly, OSLDs sensitivity decreased linearly and the reduction rate of OSLDs sensitivity after high dose irradiation had dependence on irradiated dose.

  6. Radiation dose rates from UF{sub 6} cylinders

    SciTech Connect

    Friend, P.J.

    1991-12-31

    This paper describes the results of many studies, both theoretical and experimental, which have been carried out by Urenco over the last 15 years into radiation dose rates from uranium hexafluoride (UF{sub 6}) cylinders. The contents of the cylinder, its history, and the geometry all affect the radiation dose rate. These factors are all examined in detail. Actual and predicted dose rates are compared with levels permitted by IAEA transport regulations.

  7. The effects of dose calculation resolution on dose accuracy for radiation therapy treatments of the lung. Part II. A comparison of dose distributions from an explicit lung model to dose distributions derived from a CT representation

    SciTech Connect

    Babcock, Kerry; Sidhu, Narinder

    2010-02-15

    Purpose: Due to limitations in computer memory and computation time, typical radiation therapy treatments are calculated with a voxel dimension on the order of several millimeters. The anatomy below this practical resolution is approximated as a homogeneous region uniform in atomic composition and density. The purpose of this article is to examine whether the exclusion of anatomic structure below the practical dose calculation resolution produces deviations in the resulting dose distributions. Methods: EGSnrc calculated dose distributions from the BRANCH lung model of Part I are compared and contrasted to dose distributions from a CT representation of the same BRANCH model for three different phases of the respiration cycle. Results: The exclusion of branching structures below a CT resolution of 1x1x2 mm{sup 3} resulted in a deviation in dose. The deviation in dose was as high as 14% but was localized around the branching structures. There was no significant variation in the dose deviation as a function of either field size or lung density. Conclusions: The exclusion of explicit branching structures of the lung in a CT representation creates localized deviations in dose. To ensure accurate dose calculations, CT resolution must be increased.

  8. Methodology for Estimating Ingestion Dose for Emergency Response at SRS

    SciTech Connect

    Simpkins, A.A.

    2003-07-21

    At the Savannah River Site (SRS), emergency response computer models are used to estimate dose following releases of radioactive materials to the environment. Downwind air and ground concentrations and their associated doses from inhalation and ground shine pathways are estimated. The emergency response model (PUFF-PLUME) uses real-time data to track either instantaneous (puff) or continuous (plume) releases. A site-specific ingestion dose model was developed for use with PUFF-PLUME that includes the following ingestion dose pathways pertinent to the surrounding SRS area: milk, beef, water, and fish. The model is simplistic and can be used with existing code output.

  9. Iodine-129 Dose in LLW Disposal Facility Performance Assessments

    SciTech Connect

    Wilhite, E.L.

    1999-10-15

    Iodine-129 has the lowest Performance Assessment derived inventory limit in SRS disposal facilities. Because iodine is concentrated in the body to one organ, the thyroid, it has been thought that dilution with stable iodine would reduce the dose effects of 129I.Examination of the dose model used to establish the Dose conversion factor for 129I shows that, at the levels considered in performance assessments of low-level waste disposal facilities, the calculated 129I dose already accounts for ingestion of stable iodine. At higher than normal iodine ingestion rates, the uptake of iodine by the thyroid itself decrease, which effectively cancels out the isotopic dilution effect.

  10. Pacific Northwest National Laboratory Site Dose-per-Unit-Release...

    Office of Scientific and Technical Information (OSTI)

    Subject: 29 ENERGY PLANNING, POLICY AND ECONOMY; AIR; CLEAN AIR ACTS; COMPUTERS; CONSTRUCTION; POLLUTANTS; RADIOISOTOPES; EMISSION air emissions; dose factors; compliance; CAP88 ...

  11. Unit radiological doses for fuel retrieval preliminary safety evaluation

    SciTech Connect

    Huang, C.H.

    1996-04-23

    This document provides the atmospheric dispersion and the unit dose calculations for K West liquid, a fuel element, and gaseous release from a fuel canister.

  12. A Study of Past, Present, and Future Radiation Dose Pathways...

    Office of Scientific and Technical Information (OSTI)

    Study of Past, Present, and Future Radiation Dose Pathways from Hanford Site Effluents Citation Details In-Document Search Title: A Study of Past, Present, and Future Radiation ...

  13. SU-E-I-57: Evaluation and Optimization of Effective-Dose Using Different Beam-Hardening Filters in Clinical Pediatric Shunt CT Protocol

    SciTech Connect

    Gill, K; Aldoohan, S; Collier, J

    2014-06-01

    Purpose: Study image optimization and radiation dose reduction in pediatric shunt CT scanning protocol through the use of different beam-hardening filters Methods: A 64-slice CT scanner at OU Childrens Hospital has been used to evaluate CT image contrast-to-noise ratio (CNR) and measure effective-doses based on the concept of CT dose index (CTDIvol) using the pediatric head shunt scanning protocol. The routine axial pediatric head shunt scanning protocol that has been optimized for the intrinsic x-ray tube filter has been used to evaluate CNR by acquiring images using the ACR approved CT-phantom and radiation dose CTphantom, which was used to measure CTDIvol. These results were set as reference points to study and evaluate the effects of adding different filtering materials (i.e. Tungsten, Tantalum, Titanium, Nickel and Copper filters) to the existing filter on image quality and radiation dose. To ensure optimal image quality, the scanner routine air calibration was run for each added filter. The image CNR was evaluated for different kVps and wide range of mAs values using above mentioned beam-hardening filters. These scanning protocols were run under axial as well as under helical techniques. The CTDIvol and the effective-dose were measured and calculated for all scanning protocols and added filtration, including the intrinsic x-ray tube filter. Results: Beam-hardening filter shapes energy spectrum, which reduces the dose by 27%. No noticeable changes in image low contrast detectability Conclusion: Effective-dose is very much dependent on the CTDIVol, which is further very much dependent on beam-hardening filters. Substantial reduction in effective-dose is realized using beam-hardening filters as compare to the intrinsic filter. This phantom study showed that significant radiation dose reduction could be achieved in CT pediatric shunt scanning protocols without compromising in diagnostic value of image quality.

  14. Technology Assessment and Roadmap for the Emergency Radiation Dose Assessment Program

    SciTech Connect

    Turteltaub, K W; Hartman-Siantar, C; Easterly, C; Blakely, W

    2005-10-03

    A Joint Interagency Working Group (JIWG) under the auspices of the Department of Homeland Security Office of Research and Development conducted a technology assessment of emergency radiological dose assessment capabilities as part of the overall need for rapid emergency medical response in the event of a radiological terrorist event in the United States. The goal of the evaluation is to identify gaps and recommend general research and development needs to better prepare the Country for mitigating the effects of such an event. Given the capabilities and roles for responding to a radiological event extend across many agencies, a consensus of gaps and suggested development plans was a major goal of this evaluation and road-mapping effort. The working group consisted of experts representing the Departments of Homeland Security, Health and Human Services (Centers for Disease Control and the National Institutes of Health), Food and Drug Administration, Department of Defense and the Department of Energy's National Laboratories (see appendix A for participants). The specific goals of this Technology Assessment and Roadmap were to: (1) Describe the general context for deployment of emergency radiation dose assessment tools following terrorist use of a radiological or nuclear device; (2) Assess current and emerging dose assessment technologies; and (3) Put forward a consensus high-level technology roadmap for interagency research and development in this area. This report provides a summary of the consensus of needs, gaps and recommendations for a research program in the area of radiation dosimetry for early response, followed by a summary of the technologies available and on the near-term horizon. We then present a roadmap for a research program to bring present and emerging near-term technologies to bear on the gaps in radiation dose assessment and triage. Finally we present detailed supporting discussion on the nature of the threats we considered, the status of technology

  15. Dose Recalculation and the Dose-Guided Radiation Therapy (DGRT) Process Using Megavoltage Cone-Beam CT

    SciTech Connect

    Cheung, Joey Aubry, Jean-Francois; Yom, Sue S.; Gottschalk, Alexander R.; Celi, Juan Carlos; Pouliot, Jean

    2009-06-01

    Purpose: At University of California San Francisco, daily or weekly three-dimensional images of patients in treatment position are acquired for image-guided radiation therapy. These images can be used for calculating the actual dose delivered to the patient during treatment. In this article, we present the process of performing dose recalculation on megavoltage cone-beam computed tomography images and discuss possible strategies for dose-guided radiation therapy (DGRT). Materials and Methods: A dedicated workstation has been developed to incorporate the necessary elements of DGRT. Patient image correction (cupping, missing data artifacts), calibration, completion, recontouring, and dose recalculation are all implemented in the workstation. Tools for dose comparison are also included. Examples of image correction and dose analysis using 6 head-and-neck and 2 prostate patient datasets are presented to show possible tracking of interfraction dosimetric endpoint variation over the course of treatment. Results: Analysis of the head-and-neck datasets shows that interfraction treatment doses vary compared with the planning dose for the organs at risk, with the mean parotid dose and spinal cord D{sub 1} increasing by as much as 52% and 10%, respectively. Variation of the coverage to the target volumes was small, with an average D{sub 5} dose difference of 1%. The prostate patient datasets revealed accurate dose coverage to the targeted prostate and varying interfraction dose distributions to the organs at risk. Conclusions: An effective workflow for the clinical implementation of DGRT has been established. With these techniques in place, future clinical developments in adaptive radiation therapy through daily or weekly dosimetric measurements of treatment day images are possible.

  16. The susceptibility of TaOx-based memristors to high dose rate ionizing radiation and total ionizing dose

    DOE PAGES [OSTI]

    McLain, Michael Lee; Sheridan, Timothy J.; Hjalmarson, Harold Paul; Mickel, Patrick R.; Hanson, Donald J.; McDonald, Joseph K.; Hughart, David Russell; Marinella, Matthew J.

    2014-11-11

    This paper investigates the effects of high dose rate ionizing radiation and total ionizing dose (TID) on tantalum oxide (TaOx) memristors. Transient data were obtained during the pulsed exposures for dose rates ranging from approximately 5.0 ×107 rad(Si)/s to 4.7 ×108 rad(Si)/s and for pulse widths ranging from 50 ns to 50 μs. The cumulative dose in these tests did not appear to impact the observed dose rate response. Static dose rate upset tests were also performed at a dose rate of ~3.0 ×108 rad(Si)/s. This is the first dose rate study on any type of memristive memory technology. Inmore » addition to assessing the tolerance of TaOx memristors to high dose rate ionizing radiation, we also evaluated their susceptibility to TID. The data indicate that it is possible for the devices to switch from a high resistance off-state to a low resistance on-state in both dose rate and TID environments. The observed radiation-induced switching is dependent on the irradiation conditions and bias configuration. Furthermore, the dose rate or ionizing dose level at which a device switches resistance states varies from device to device; the enhanced susceptibility observed in some devices is still under investigation. As a result, numerical simulations are used to qualitatively capture the observed transient radiation response and provide insight into the physics of the induced current/voltages.« less

  17. Improvements in dose calculation accuracy for small off-axis targets in high dose per fraction tomotherapy

    SciTech Connect

    Hardcastle, Nicholas; Bayliss, Adam; Wong, Jeannie Hsiu Ding; Rosenfeld, Anatoly B.; Tome, Wolfgang A.

    2012-08-15

    Purpose: A recent field safety notice from TomoTherapy detailed the underdosing of small, off-axis targets when receiving high doses per fraction. This is due to angular undersampling in the dose calculation gantry angles. This study evaluates a correction method to reduce the underdosing, to be implemented in the current version (v4.1) of the TomoTherapy treatment planning software. Methods: The correction method, termed 'Super Sampling' involved the tripling of the number of gantry angles from which the dose is calculated during optimization and dose calculation. Radiochromic film was used to measure the dose to small targets at various off-axis distances receiving a minimum of 21 Gy in one fraction. Measurements were also performed for single small targets at the center of the Lucy phantom, using radiochromic film and the dose magnifying glass (DMG). Results: Without super sampling, the peak dose deficit increased from 0% to 18% for a 10 mm target and 0% to 30% for a 5 mm target as off-axis target distances increased from 0 to 16.5 cm. When super sampling was turned on, the dose deficit trend was removed and all peak doses were within 5% of the planned dose. For measurements in the Lucy phantom at 9.7 cm off-axis, the positional and dose magnitude accuracy using super sampling was verified using radiochromic film and the DMG. Conclusions: A correction method implemented in the TomoTherapy treatment planning system which triples the angular sampling of the gantry angles used during optimization and dose calculation removes the underdosing for targets as small as 5 mm diameter, up to 16.5 cm off-axis receiving up to 21 Gy.

  18. ALL-PATHWAYS DOSE ANALYSIS FOR THE PORTSMOUTH ON-SITE WASTE DISPOSAL FACILITY

    SciTech Connect

    Smith, F.; Phifer, M.

    2014-04-10

    A Portsmouth On-Site Waste Disposal Facility (OSWDF) All-Pathways analysis has been conducted that considers the radiological impacts to a resident farmer. It is assumed that the resident farmer utilizes a farm pond contaminated by the OSWDF to irrigate a garden and pasture and water livestock from which food for the resident farmer is obtained, and that the farmer utilizes groundwater from the Berea sandstone aquifer for domestic purposes (i.e. drinking water and showering). As described by FBP 2014b the Hydrologic Evaluation of Landfill Performance (HELP) model (Schroeder et al. 1994) and the Surface Transport Over Multiple Phases (STOMP) model (White and Oostrom 2000, 2006) were used to model the flow and transport from the OSWDF to the Points of Assessment (POAs) associated with the 680-ft elevation sandstone layer (680 SSL) and the Berea sandstone aquifer. From this modeling the activity concentrations radionuclides were projected over time at the POAs. The activity concentrations were utilized as input to a GoldSimTM (GTG 2010) dose model, described herein, in order to project the dose to a resident farmer over time. A base case and five sensitivity cases were analyzed. The sensitivity cases included an evaluation of the impacts of using a conservative inventory, an uncased well to the Berea sandstone aquifer, a low waste zone uranium distribution coefficient (Kd), different transfer factors, and reference person exposure parameters (i.e. at 95 percentile). The maximum base case dose within the 1,000 year assessment period was projected to be 1.5E-14 mrem/yr, and the maximum base case dose at any time less than 10,000 years was projected to be 0.002 mrem/yr. The maximum projected dose of any sensitivity case was approximately 2.6 mrem/yr associated with the use of an uncased well to the Berea sandstone aquifer. This sensitivity case is considered very unlikely because it assumes leakage from the location of greatest concentration in the 680 SSL in to the

  19. REFERENCE CASES FOR USE IN THE CEMENTITOUS PARTNERSHIP PROJECT

    SciTech Connect

    Langton, C.; Kosson, D.; Garrabrants, A.

    2010-08-31

    The Cementitious Barriers Partnership Project (CBP) is a multi-disciplinary, multi-institution cross cutting collaborative effort supported by the US Department of Energy (DOE) to develop a reasonable and credible set of tools to improve understanding and prediction of the structural, hydraulic and chemical performance of cementitious barriers used in nuclear applications. The period of performance is >100 years for operating facilities and > 1000 years for waste management. The CBP has defined a set of reference cases to provide the following functions: (i) a common set of system configurations to illustrate the methods and tools developed by the CBP, (ii) a common basis for evaluating methodology for uncertainty characterization, (iii) a common set of cases to develop a complete set of parameter and changes in parameters as a function of time and changing conditions, (iv) a basis for experiments and model validation, and (v) a basis for improving conceptual models and reducing model uncertainties. These reference cases include the following two reference disposal units and a reference storage unit: (i) a cementitious low activity waste form in a reinforced concrete disposal vault, (ii) a concrete vault containing a steel high-level waste tank filled with grout (closed high-level waste tank), and (iii) a spent nuclear fuel basin during operation. Each case provides a different set of desired performance characteristics and interfaces between materials and with the environment. Examples of concretes, grout fills and a cementitious waste form are identified for the relevant reference case configurations.

  20. REFERENCE CASES FOR USE IN THE CEMENTITIOUS BARRIERS PARTNERSHIP

    SciTech Connect

    Langton, C

    2009-01-06

    The Cementitious Barriers Project (CBP) is a multidisciplinary cross cutting project initiated by the US Department of Energy (DOE) to develop a reasonable and credible set of tools to improve understanding and prediction of the structural, hydraulic and chemical performance of cementitious barriers used in nuclear applications. The period of performance is >100 years for operating facilities and > 1000 years for waste management. The CBP has defined a set of reference cases to provide the following functions: (1) a common set of system configurations to illustrate the methods and tools developed by the CBP, (2) a common basis for evaluating methodology for uncertainty characterization, (3) a common set of cases to develop a complete set of parameter and changes in parameters as a function of time and changing conditions, and (4) a basis for experiments and model validation, and (5) a basis for improving conceptual models and reducing model uncertainties. These reference cases include the following two reference disposal units and a reference storage unit: (1) a cementitious low activity waste form in a reinforced concrete disposal vault, (2) a concrete vault containing a steel high-level waste tank filled with grout (closed high-level waste tank), and (3) a spent nuclear fuel basin during operation. Each case provides a different set of desired performance characteristics and interfaces between materials and with the environment. Examples of concretes, grout fills and a cementitious waste form are identified for the relevant reference case configurations.

  1. Report of the Task Group 186 on model-based dose calculation methods in brachytherapy beyond the TG-43 formalism: Current status and recommendations for clinical implementation

    SciTech Connect

    Beaulieu, Luc; Carlsson Tedgren, Asa; Carrier, Jean-Francois; and others

    2012-10-15

    The charge of Task Group 186 (TG-186) is to provide guidance for early adopters of model-based dose calculation algorithms (MBDCAs) for brachytherapy (BT) dose calculations to ensure practice uniformity. Contrary to external beam radiotherapy, heterogeneity correction algorithms have only recently been made available to the BT community. Yet, BT dose calculation accuracy is highly dependent on scatter conditions and photoelectric effect cross-sections relative to water. In specific situations, differences between the current water-based BT dose calculation formalism (TG-43) and MBDCAs can lead to differences in calculated doses exceeding a factor of 10. MBDCAs raise three major issues that are not addressed by current guidance documents: (1) MBDCA calculated doses are sensitive to the dose specification medium, resulting in energy-dependent differences between dose calculated to water in a homogeneous water geometry (TG-43), dose calculated to the local medium in the heterogeneous medium, and the intermediate scenario of dose calculated to a small volume of water in the heterogeneous medium. (2) MBDCA doses are sensitive to voxel-by-voxel interaction cross sections. Neither conventional single-energy CT nor ICRU/ICRP tissue composition compilations provide useful guidance for the task of assigning interaction cross sections to each voxel. (3) Since each patient-source-applicator combination is unique, having reference data for each possible combination to benchmark MBDCAs is an impractical strategy. Hence, a new commissioning process is required. TG-186 addresses in detail the above issues through the literature review and provides explicit recommendations based on the current state of knowledge. TG-43-based dose prescription and dose calculation remain in effect, with MBDCA dose reporting performed in parallel when available. In using MBDCAs, it is recommended that the radiation transport should be performed in the heterogeneous medium and, at minimum, the dose to

  2. Web-Based Training on Reviewing Dose Modeling Aspects of NRC Decommissioning and License Termination Plans

    SciTech Connect

    LePoire, D.; Cheng, J.J.; Kamboj, S.; Arnish, J.; Richmond, P.; Chen, S.Y.; Barr, C.; McKenney, C.

    2008-01-15

    NRC licensees at decommissioning nuclear facilities submit License Termination Plans (LTP) or Decommissioning Plans (DP) to NRC for review and approval. To facilitate a uniform and consistent review of these plans, the NRC developed training for its staff. A live classroom course was first developed in 2005, which targeted specific aspects of the LTP and DP review process related to dose-based compliance demonstrations or modeling. A web-based training (WBT) course was developed in 2006 and 2007 to replace the classroom-based course. The advantage of the WBT is that it will allow for staff training or refreshers at any time, while the advantage of a classroom-based course is that it provides a forum for lively discussion and the sharing of experience of classroom participants. The objective of this course is to train NRC headquarters and regional office staff on how to review sections of a licensee's DP or LTP that pertain to dose modeling. The DP generally refers to the decommissioning of non-reactor facilities, while the LTP refers specifically to the decommissioning of reactors. This review is part of the NRC's licensing process, in which the NRC determines if a licensee has provided a suitable technical basis to support derived concentration guideline levels (DCGLs)1 or dose modeling analyses performed to demonstrate compliance with dose-based license termination rule criteria. This type of training is one component of an organizational management system. These systems 'use a range of practices to identify, create, represent, and distribute knowledge for reuse, awareness and learning'. This is especially important in an organization undergoing rapid change or staff turnover to retain organizational information and processes. NRC is committed to maintaining a dynamic program of training, development, and knowledge transfer to ensure that the NRC acquires and maintains the competencies needed to accomplish its mission. This paper discusses one specific project

  3. SU-E-P-57: Radiation Doses Assessment to Paediatric Patients for Some Digital Diagnostic Radiology Examination in Emergency Department in Qatar

    SciTech Connect

    Abdallah, I; Aly, A; Al Naemi, H

    2015-06-15

    Purpose: The aim of this study was to evaluate radiation doses to pediatric patients undergoing standard radiographic examinations using Direct Digital Radiography (DDR) in Paediatric emergency center of Hamad General Hospital (HGH) in state of Qatar and compared with regional and international Dose Reference Levels (DRLs). Methods: Entrance Skin Dose (ESD) was measured for 2739 patients for two common X-ray examinations namely: Chest AP/PA, Abdomen. Exposure factors such as kV, mAs and Focal to Skin Distance (FSD) were recorded for each patient. Tube Output was measured for a range of selected kV values. ESD for each individual patient was calculated using the tube output and the technical exposure factors for each examination. The ESD values were compared with the some international Dose Reference Levels (DRL) for all types of examinations. Results: The most performed procedure during the time of this study was chest PA/PA (85%). The mean ESD values obtained from AP chest, PA chest and AP abdomen ranged 91–120, 80–84 and 209 – 659 µGy per radiograph for different age’s groups respectively. Two protocols have been used for chest AP and PA using different radiological parameters, and the different of ESD values for chest PA and were 41% for 1 years old child, 57% for 5 years old for chest AP. Conclusion: The mean ESD were compared with those found in literature and were found to be comparable. The radiation dose can be reduced more for Chest AP and PA examination by optimization of each investigation and hence more studies are required for this task. The results presented will serve as a baseline data needed for deriving local reference doses for pediatric X-ray examinations in this local department and hence it can be applied in the whole Qatar.

  4. LDRD final report on a unified linear reference system

    SciTech Connect

    Espinoza, J. Jr.; Mackoy, R.D.; Fletcher, D.R.

    1997-06-01

    The purpose of the project was to describe existing deficiencies in Geographic Information Systems for transportation (GIS-T) applications and prescribe solutions that would benefit the transportation community in general. After an in-depth literature search and much consultation with noted transportation experts, the need for a common linear reference system that integrated and supported the planning and operational needs of the transportation community became very apparent. The focus of the project was set on a unified linear reference system and how to go about its requirements definition, design, implementation, and promulgation to the transportation community.

  5. The Reference Design for the ILC, Costs, and What's Next

    SciTech Connect

    Barish, Barry

    2007-03-26

    A Reference Design for the International Linear Collider was recently released. The scale of the ILC is such that it must be built by an international collaboration and the design is the culmination of a unique global effort. Through ICFA, a decision was made to base the design on superconducting RF technology and then the Global Design Effort (GDE) was created to coordinate the actual accelerator design toward a construction proposal. The reference design establishes all the features of the machine, and defines both the R&D program and engineering design that will now follow over the next few years.

  6. Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    .1, 6/17/13) Appendix SFA-1 Page 1 of 6 Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference (a) The Federal Acquisition Regulation (FAR) and the Department of Energy Acquisition Regulation (DEAR) clauses which are incorporated by reference herein shall have the same force and effect as if printed in full text. (b) Full text of the referenced clauses may be accessed electronically at website address: http://www.acquisition.gov/far/ or http://www.management.energy.gov/DEAR.htm (c) The

  7. Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    .1, 6/17/13) Appendix SFA-1 Page 1 of 6 Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference (a) The Federal Acquisition Regulation (FAR) and the Department of Energy Acquisition Regulation (DEAR) clauses which are incorporated by reference herein shall have the same force and effect as if printed in full text. (b) Full text of the referenced clauses may be accessed electronically at website address: http://www.acquisition.gov/far/ or http://www.management.energy.gov/DEAR.htm (c) The

  8. Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2, 3/11/13) Appendix SFA-1 Page 1 of 9 Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference (a) The Federal Acquisition Regulation (FAR) and the Department of Energy Acquisition Regulation (DEAR) clauses which are incorporated by reference herein shall have the same force and effect as if printed in full text. (b) Full text of the referenced clauses may be accessed electronically at website address: http://www.acquisition.gov/far/ or http://www.management.energy.gov/DEAR.htm (c) The

  9. Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    SFA (Rev. 2, 3/11/13) Appendix SFA-1 Page 1 of 8 Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference (a) The Federal Acquisition Regulation (FAR) and the Department of Energy Acquisition Regulation (DEAR) clauses which are incorporated by reference herein shall have the same force and effect as if printed in full text. (b) Full text of the referenced clauses may be accessed electronically at website address: http://www.acquisition.gov/far/ or http://www.management.energy.gov/DEAR.htm

  10. Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    1, 3/11/13) Appendix SFA-1 Page 1 of 3 Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference (a) The Federal Acquisition Regulation (FAR) and the Department of Energy Acquisition Regulation (DEAR) clauses which are incorporated by reference herein shall have the same force and effect as if printed in full text. (b) Full text of the referenced clauses may be accessed electronically at website address: http://www.acquisition.gov/far/ or http://www.management.energy.gov/DEAR.htm (c) The

  11. Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2, 3/11/13) Appendix SFA-1 Page 1 of 8 Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference (a) The Federal Acquisition Regulation (FAR) and the Department of Energy Acquisition Regulation (DEAR) clauses which are incorporated by reference herein shall have the same force and effect as if printed in full text. (b) Full text of the referenced clauses may be accessed electronically at website address: http://www.acquisition.gov/far/ or http://www.management.energy.gov/DEAR.htm (c) The

  12. Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    , 3/11/13) Page 1 of 6 Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference (a) The Federal Acquisition Regulation (FAR) and the Department of Energy Acquisition Regulation (DEAR) clauses which are incorporated by reference herein shall have the same force and effect as if printed in full text. (b) Full text of the referenced clauses may be accessed electronically at website address: http://www.acquisition.gov/far/ or http://www.management.energy.gov/DEAR.htm (c) The following

  13. Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    , 3/11/13) Appendix SFA-1 Page 1 of 6 Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference (a) The Federal Acquisition Regulation (FAR) and the Department of Energy Acquisition Regulation (DEAR) clauses which are incorporated by reference herein shall have the same force and effect as if printed in full text. (b) Full text of the referenced clauses may be accessed electronically at website address: http://www.acquisition.gov/far/ or http://www.management.energy.gov/DEAR.htm (c) The

  14. Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    , 7/14/14) Appendix SFA-1 Page 1 of 7 Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference (a) The Federal Acquisition Regulation (FAR) and the Department of Energy Acquisition Regulation (DEAR) clauses which are incorporated by reference herein shall have the same force and effect as if printed in full text. (b) Full text of the referenced clauses may be accessed electronically at website address: FAR: http://farsite.hill.af.mil/vffara.htm DEAR: http://farsite.hill.af.mil/vfdoea.htm

  15. Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    , 7/14/14) Appendix SFA-1 Page 1 of 8 Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference (a) The Federal Acquisition Regulation (FAR) and the Department of Energy Acquisition Regulation (DEAR) clauses which are incorporated by reference herein shall have the same force and effect as if printed in full text. (b) Full text of the referenced clauses may be accessed electronically at website address: FAR: http://farsite.hill.af.mil/vffara.htm DEAR: http://farsite.hill.af.mil/vfdoea.htm

  16. Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    , 7/14/14) Appendix SFA-1 Page 1 of 8 Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference (a) The Federal Acquisition Regulation (FAR) and the Department of Energy Acquisition Regulation (DEAR) clauses which are incorporated by reference herein shall have the same force and effect as if printed in full text. (b) Full text of the referenced clauses may be accessed electronically at website address: FAR: http://farsite.hill.af.mil/vffara.htm DEAR: http://farsite.hill.af.mil/vfdoea.htm

  17. Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2, 7/14/14) Appendix SFA-1 Page 1 of 3 Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference (a) The Federal Acquisition Regulation (FAR) and the Department of Energy Acquisition Regulation (DEAR) clauses which are incorporated by reference herein shall have the same force and effect as if printed in full text. (b) Full text of the referenced clauses may be accessed electronically at website address: FAR: http://farsite.hill.af.mil/vffara.htm DEAR: http://farsite.hill.af.mil/vfdoea.htm

  18. Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    , 7/14/14) Appendix SFA-1 Page 1 of 8 Appendix SFA-1 FAR & DEAR Clauses Incorporated By Reference (a) The Federal Acquisition Regulation (FAR) and the Department of Energy Acquisition Regulation (DEAR) clauses which are incorporated by reference herein shall have the same force and effect as if printed in full text. (b) Full text of the referenced clauses may be accessed electronically at website address: FAR: http://farsite.hill.af.mil/vffara.htm DEAR: http://farsite.hill.af.mil/vfdoea.htm

  19. Technology, safety and costs of decommissioning a reference boiling water reactor power station: Technical support for decommissioning matters related to preparation of the final decommissioning rule

    SciTech Connect

    Konzek, G.J.; Smith, R.I.

    1988-07-01

    Preparation of the final Decommissioning Rule by the Nuclear Regulatory Commission (NRC) staff has been assisted by Pacific Northwest Laboratory (PNL) staff familiar with decommissioning matters. These efforts have included updating previous cost estimates developed during the series of studies of conceptually decommissioning reference licensed nuclear facilities for inclusion in the Final Generic Environmental Impact Statement (FGEIS) on decommissioning; documenting the cost updates; evaluating the cost and dose impacts of post-TMI-2 backfits on decommissioning; developing a revised scaling formula for estimating decommissioning costs for reactor plants different in size from the reference boiling water reactor (BWR) described in the earlier study; and defining a formula for adjusting current cost estimates to reflect future escalation in labor, materials, and waste disposal costs. This report presents the results of recent PNL studies to provide supporting information in three areas concerning decommissioning of the reference BWR: updating the previous cost estimates to January 1986 dollars; assessing the cost and dose impacts of post-TMI-2 backfits; and developing a scaling formula for plants different in size than the reference plant and an escalation formula for adjusting current cost estimates for future escalation.

  20. Phase 1 of the Hanford Environmental Dose Reconstruction Project

    SciTech Connect

    Not Available

    1990-07-20

    This report summarizes the water pathway portion of the first phase of the Hanford Environmental Dose Reconstruction (HEDR) Project, conducted by Battelle staff at the Pacific Northwest Laboratory under the direction of an independent Technical Steering Panel. The HEDR Project is estimating radiation doses that could have been received by the public from the Department of Energy's Hanford Site, in southeastern Washington State. Phase 1 of the water-pathway dose reconstruction sought to determine whether dose estimates could be calculated for populations in the area from above the Hanford Site at Priest Rapids Dam to below the site at McNary Dam from January 1964 to December 1966. Of the potential sources of radionuclides from the river, fish consumption was the most important. Later phases of the HEDR Project will address dose estimates for periods other than 1964--1966 and for populations downstream of McNary Dam. 17 refs., 20 figs., 1 tab.