National Library of Energy BETA

Sample records for beryllium petition date

  1. Author's personal copy Beryllium-10 terrestrial cosmogenic nuclide surface exposure dating of Quaternary

    E-Print Network [OSTI]

    Frankel, Kurt L.

    Author's personal copy Beryllium-10 terrestrial cosmogenic nuclide surface exposure dating Terrestrial cosmogenic nuclides Optically stimulated luminescence Alluvial fans Shore lines Lake Manly nuclide (TCN) surface exposure methods in Death Valley. The 10 Be TCN ages show considerable variance

  2. Author's personal copy Beryllium-10 terrestrial cosmogenic nuclide surface exposure dating of Quaternary

    E-Print Network [OSTI]

    Black, Robert X.

    for cosmogenic Beryllium-10 geochronology. When combined with the offsets, these samples yield late Pleistocene

  3. About Beryllium

    Office of Energy Efficiency and Renewable Energy (EERE)

    Information on what is Beryllium, the symptoms and health hazards associated with Beryllium contamination.

  4. ISSUANCE 2015-04-29: Energy Conservation Program for Consumer Products: Test Procedures for Direct Heating Equipment and Pool Heaters Notice of petition to extend test procedure compliance date and request for comment

    Broader source: Energy.gov [DOE]

    Energy Conservation Program for Consumer Products: Test Procedures for Direct Heating Equipment and Pool Heaters; Notice of petition to extend test procedure compliance date and request for comment.

  5. Beryllium Testing

    Broader source: Energy.gov [DOE]

    Beryllium is a naturally occurring metal and is not radioactive. Because of its properties, beryllium has been part of the atomic energy and nuclear weapons industries since the 1940s.

  6. Beryllium disease

    SciTech Connect (OSTI)

    Not Available

    1991-12-20

    After two workers at the nuclear weapons plant at Oak Ridge National Laboratory in Tennessee were diagnosed earlier this year with chronic beryllium disease (CBD), a rare and sometimes fatal scarring of the lungs, the Department of Energy ordered up a 4-year probe. Now, part of that probe has begun - tests conducted by the Oak Ridge Associated Universities' Center for Epidemiological Research measuring beryllium sensitivity in 3,000 people who've been exposed to the metal's dust since Manhattan Project managers opened the Y-12 plant at Oak Ridge in 1943. Currently, 119 Y-12 employees process beryllium, which has a number of industrial uses, including rocket heat shields and nuclear weapon and electrical components. The disease often takes 20 to 25 years to develop, and the stricken employees haven't worked with beryllium for years. There is no cure for CBD, estimated to strike 2% of people exposed to the metal. Anti-inflammatory steroids alleviate such symptoms as a dry cough, weight loss, and fatigue. Like other lung-fibrosis diseases that are linked to lung cancer, some people suspect CBD might cause some lung cancer. While difficult to diagnose, about 900 cases of CBD have been reported since a Beryllium Case Registry was established in 1952. The Department of Energy (DOE) estimates that about 10,000 DOE employees and 800,000 people in private industry have worked with beryllium.

  7. Method for welding beryllium

    DOE Patents [OSTI]

    Dixon, Raymond D. (Los Alamos, NM); Smith, Frank M. (Espanola, NM); O'Leary, Richard F. (Los Alamos, NM)

    1997-01-01

    A method is provided for joining beryllium pieces which comprises: depositing aluminum alloy on at least one beryllium surface; contacting that beryllium surface with at least one other beryllium surface; and welding the aluminum alloy coated beryllium surfaces together. The aluminum alloy may be deposited on the beryllium using gas metal arc welding. The aluminum alloy coated beryllium surfaces may be subjected to elevated temperatures and pressures to reduce porosity before welding the pieces together. The aluminum alloy coated beryllium surfaces may be machined into a desired welding joint configuration before welding. The beryllium may be an alloy of beryllium or a beryllium compound. The aluminum alloy may comprise aluminum and silicon.

  8. Interim Chronic Beryllium Disease

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1999-12-08

    Establishes Departmental expectations for addressing chronic beryllium disease throughout the Department until a Departmental rule on beryllium is promulgated. This Notice was replaced by final rule 10 CFR Part 850, Chronic Beryllium Disease Prevention Program, published December 8, 1999.

  9. Method for welding beryllium

    DOE Patents [OSTI]

    Dixon, R.D.; Smith, F.M.; O`Leary, R.F.

    1997-04-01

    A method is provided for joining beryllium pieces which comprises: depositing aluminum alloy on at least one beryllium surface; contacting that beryllium surface with at least one other beryllium surface; and welding the aluminum alloy coated beryllium surfaces together. The aluminum alloy may be deposited on the beryllium using gas metal arc welding. The aluminum alloy coated beryllium surfaces may be subjected to elevated temperatures and pressures to reduce porosity before welding the pieces together. The aluminum alloy coated beryllium surfaces may be machined into a desired welding joint configuration before welding. The beryllium may be an alloy of beryllium or a beryllium compound. The aluminum alloy may comprise aluminum and silicon. 9 figs.

  10. Defense programs beryllium good practice guide

    SciTech Connect (OSTI)

    Herr, M.

    1997-07-01

    Within the DOE, it has recently become apparent that some contractor employees who have worked (or are currently working) with and around beryllium have developed chronic beryllium disease (CBD), an occupational granulomatous lung disorder. Respiratory exposure to aerosolized beryllium, in susceptible individuals, causes an immunological reaction that can result in granulomatous scarring of the lung parenchyma, shortness of breath, cough, fatigue, weight loss, and, ultimately, respiratory failure. Beryllium disease was originally identified in the 1940s, largely in the fluorescent light industry. In 1950, the Atomic Energy Commission (AEC) introduced strict exposure standards that generally curtailed both the acute and chronic forms of the disease. Beginning in 1984, with the identification of a CBD case in a DOE contractor worker, there was increased scrutiny of both industrial hygiene practices and individuals in this workforce. To date, over 100 additional cases of beryllium-specific sensitization and/or CBD have been identified. Thus, a disease previously thought to be largely eliminated by the adoption of permissible exposure standards 45 years ago is still a health risk in certain workforces. This good practice guide forms the basis of an acceptable program for controlling workplace exposure to beryllium. It provides (1) Guidance for minimizing worker exposure to beryllium in Defense Programs facilities during all phases of beryllium-related work, including the decontamination and decommissioning (D&D) of facilities. (2) Recommended controls to be applied to the handling of metallic beryllium and beryllium alloys, beryllium oxide, and other beryllium compounds. (3) Recommendations for medical monitoring and surveillance of workers exposed (or potentially exposed) to beryllium, based on the best current understanding of beryllium disease and medical diagnostic tests available. (4) Site-specific safety procedures for all processes of beryllium that is likely to generate dusts, mists, fumes, or small particulates. A beryllium exposure control program should minimize airborne concentrations, the potential for and spread of contamination, the number of times individuals are exposed to beryllium, and the number of employees who may be potentially exposed.

  11. DATE:

    Broader source: Energy.gov (indexed) [DOE]

    3-12 DATE: December 7, 2012 TO: Procurement Directors FROM: Director Contract and Financial Assistance Policy Division Office of Policy Office of Acquisition and Project Management...

  12. DATE:

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    4-35 DATE: July 09, 2014 TO: Procurement Directors FROM: Director Contract and Financial Assistance Policy Division Office of Policy Office of Acquisition and Project Management...

  13. 2010, Geomorphology, 125, 541-557, doi:10.1016/j.geomorph.2010.10.024 1 Beryllium-10 terrestrial cosmogenic nuclide surface exposure dating of

    E-Print Network [OSTI]

    Lee, Jeff

    cosmogenic nuclide surface exposure dating of Quaternary landforms in Death Valley Lewis A. Owena* , Kurt L University, Ellensburg, Washington, USA Keywords: Death Valley; Terrestrial cosmogenic nuclides; optically and shorelines, spits and beach bars were dated using 10 Be terrestrial cosmogenic nuclide (TCN) surface exposure

  14. HANFORD SITE BERYLLIUM QUESTIONNAIRE

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    worked with non-sparking tools? Yes No Have you ever worked with electrical switchgear? Yes No Suspect Beryllium Facilities. Place a check () next to any...

  15. DATE:

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouth DakotaRobbins and Myers Co -VANaval ,, *' ;x-L*Qwner -RL5- DATE:

  16. DATE:

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p aDepartmentEnergyEveryCustomerD= DOE/RG-0067 o y e=Burden45 DATE:

  17. DATE:

    Broader source: Energy.gov (indexed) [DOE]

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    Broader source: Energy.gov (indexed) [DOE]

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    Broader source: Energy.gov (indexed) [DOE]

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    Broader source: Energy.gov (indexed) [DOE]

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    Broader source: Energy.gov (indexed) [DOE]

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    Broader source: Energy.gov (indexed) [DOE]

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    Broader source: Energy.gov (indexed) [DOE]

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    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p aDepartmentEnergyEveryCustomerD= DOE/RG-0067 o y e=Burden45 DATE:

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    Broader source: Energy.gov (indexed) [DOE]

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  6. MATERIALS ENGINEERING KEYWORDS: beryllium, stainless

    E-Print Network [OSTI]

    Abdou, Mohamed

    MATERIALS ENGINEERING KEYWORDS: beryllium, stainless steel, heat conductance EXPERIMENTAL MEASUREMENT OF THE INTERFACE HEAT CONDUCTANCE BETWEEN NONCONFORMING BERYLLIUM AND TYPE 316 STAINLESS STEEL In fusion blanket designs that employ beryllium as a neutron multiplier, the interface conductance h plays

  7. Beryllium FAQs - Hanford Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & InspectionsBeryllium and Chronic Beryllium DiseaseFAQs About Us

  8. Beryllium Program - Hanford Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & InspectionsBeryllium and Chronic Beryllium DiseaseFAQsProgram

  9. Characterization of Shocked Beryllium

    SciTech Connect (OSTI)

    Cady, Carl M [Los Alamos National Laboratory; Adams, Chris D [Los Alamos National Laboratory; Hull, Lawrence M [Los Alamos National Laboratory; Gray III, George T [Los Alamos National Laboratory; Prime, Michael B [Los Alamos National Laboratory; Addessio, Francis L [Los Alamos National Laboratory; Wynn, Thomas A [Los Alamos National Laboratory; Brown, Eric N [Los Alamos National Laboratory

    2012-08-24

    Beryllium metal has many excellent structural properties in addition to its unique radiation characteristics, including: high elastic modulus, low Poisson's ratio, low density, and high melting point. However, it suffers from several major mechanical drawbacks: 1) high anisotropy - due to its hexagonal lattice structure and its susceptibility to crystallographic texturing; 2) susceptibility to impurity-induced fracture - due to grain boundary segregation; and 3) low intrinsic ductility at ambient temperatures thereby limiting fabricability. While large ductility results from deformation under the conditions of compression, the material can exhibit a brittle behavior under tension. Furthermore, there is a brittle to ductile transition at approximately 200 C under tensile conditions. While numerous studies have investigated the low-strain-rate constitutive response of beryllium, the combined influence of high strain rate and temperature on the mechanical behavior and microstructure of beryllium has received limited attention over the last 40 years. Prior studies have focused on tensile loading behavior, or limited conditions of dynamic strain rate and/or temperature. The beryllium used in this study was Grade S200-F (Brush Wellman, Inc., Elmore, OH) material. The work focused on high strain rate deformation and examine the validity of constitutive models in deformation rate regimes, including shock, the experiments were modeled using a Lagrangian hydrocode. Two constitutive strength (plasticity) models, the Preston-Tonks-Wallace (PTW) and Mechanical Threshold Stress (MTS) models, were calibrated using the same set of quasi-static and Hopkinson bar data taken at temperatures from 77K to 873K and strain rates from 0.001/sec to 4300/sec. In spite of being calibrated on the same data, the two models give noticeably different results when compared with the measured wave profiles. These high strain rate tests were conducted using both explosive drive and a gas gun to accelerate the material. Preliminary analysis of the results appears to indicate that, if fractured by the initial shock loading, the S200F Be remains sufficiently intact to support a shear stress following partial release and subsequent shock re-loading of the material. Additional 'arrested' drive shots were designed and tested to minimize the reflected tensile pulse in the sample. These tests were done to both validate the model and to put large shock induced compressive loads into the beryllium sample.

  10. Rocky Flats beryllium health surveillance

    SciTech Connect (OSTI)

    Stange, A.W.; Furman, F.J.; Hilmas, D.E.

    1996-10-01

    The Rocky Flats Beryllium Health Surveillance Program (BHSP), initiated in June 1991, was designed to provide medical surveillance for current and former employees exposed to beryllium. The BHSP identifies individuals who have developed beryllium sensitivity using the beryllium lymphocyte proliferation test (BeLPT). A detailed medical evaluation to determine the prevalence of chronic beryllium disease (CBD) is offered to individuals identified as beryllium sensitized or to those who have chest X-ray changes suggestive of CBD. The BHSP has identified 27 cases of CBD and another 74 cases of beryllium sensitization out of 4268 individuals tested. The distribution of BeLPT values for normal, sensitized, and CBD-identified individuals is described. Based on the information collected during the first 3 1/3 years of the BHSP, the BeLPT is the most effective means for the early identification of beryllium-sensitized individuals and to identify individuals who may have CBD. The need for BeLPT retesting is demonstrated through the identification of beryllium sensitization in individuals who previously tested normal. Posterior/anterior chest X-rays were not effective in the identification of CBD. 12 refs., 8 tabs.

  11. Double Photoionization of excited Lithium and Beryllium

    E-Print Network [OSTI]

    Yip, Frank L.

    2010-01-01

    of excited Lithium and Beryllium F. L. Yip, 1 C. W. McCurdy,ion- ization of lithium and beryllium starting from aligned,DPI from aligned lithium and beryllium atoms in excited P-

  12. ORISE: Beryllium laboratory achieves accreditation from College...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Beryllium laboratory achieves accreditation from College of American Pathologists ORISE beryllium laboratory in Oak Ridge accredited for the third time since 2009 FOR IMMEDIATE...

  13. ORISE: Worker Health Studies - Beryllium Testing Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Process Diagram Click image for larger view Oak Ridge Institute for Science Education Beryllium Testing Laboratory Beryllium is a metal that is primarily used as a hardening agent...

  14. Technical Basis for PNNL Beryllium Inventory

    SciTech Connect (OSTI)

    Johnson, Michelle Lynn

    2014-07-09

    The Department of Energy (DOE) issued Title 10 of the Code of Federal Regulations Part 850, “Chronic Beryllium Disease Prevention Program” (the Beryllium Rule) in 1999 and required full compliance by no later than January 7, 2002. The Beryllium Rule requires the development of a baseline beryllium inventory of the locations of beryllium operations and other locations of potential beryllium contamination at DOE facilities. The baseline beryllium inventory is also required to identify workers exposed or potentially exposed to beryllium at those locations. Prior to DOE issuing 10 CFR 850, Pacific Northwest Nuclear Laboratory (PNNL) had documented the beryllium characterization and worker exposure potential for multiple facilities in compliance with DOE’s 1997 Notice 440.1, “Interim Chronic Beryllium Disease.” After DOE’s issuance of 10 CFR 850, PNNL developed an implementation plan to be compliant by 2002. In 2014, an internal self-assessment (ITS #E-00748) of PNNL’s Chronic Beryllium Disease Prevention Program (CBDPP) identified several deficiencies. One deficiency is that the technical basis for establishing the baseline beryllium inventory when the Beryllium Rule was implemented was either not documented or not retrievable. In addition, the beryllium inventory itself had not been adequately documented and maintained since PNNL established its own CBDPP, separate from Hanford Site’s program. This document reconstructs PNNL’s baseline beryllium inventory as it would have existed when it achieved compliance with the Beryllium Rule in 2001 and provides the technical basis for the baseline beryllium inventory.

  15. Beryllium Related Matter

    SciTech Connect (OSTI)

    Gaylord, R F

    2008-12-23

    In recent months, LLNL has identified, commenced, and implemented a series of interim controls, compensatory measures, and initiatives to ensure worker safety, and improve safety processes with regards to potential worker exposure to beryllium. Many of these actions have been undertaken in response to the NNSA Independent Review (COR-TS-5/15/2008-8550) received by LLNL in November of 2008. Others are the result of recent discoveries, events or incidents, and lessons learned, or were scheduled corrective actions from earlier commitments. Many of these actions are very recent in nature, or are still in progress, and vary in the formality of implementation. Actions are being reviewed for effectiveness as they progress. The documentation of implementation, and review of effectiveness, when appropriate, of these actions will be addressed as part of the formal Corrective Action Plan addressing the Independent Review. The mitigating actions taken fall into the following categories: (1) Responses to specific events/concerns; (2) Development of interim controls; (3) Review of ongoing activities; and (4) Performance improvement measures.

  16. SUIVI MEDICAL DE SALARIES EXPOSES AU BERYLLIUM : Medical follow-up of beryllium -exposed workers

    E-Print Network [OSTI]

    Boyer, Edmond

    1 SUIVI MEDICAL DE SALARIES EXPOSES AU BERYLLIUM : Medical follow-up of beryllium - exposed workers-up of beryllium-exposed workers. Method: a medical follow-up of workers from a factory machining beryllium (Be preventive measures. Key words: beryllium, sensitisation, occupational exposure, prevention, Lymphocyte

  17. Beryllium Health Advocates - Hanford Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & InspectionsBeryllium and Chronic Beryllium DiseaseFAQs

  18. Beryllium Program Feedback - Hanford Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & InspectionsBeryllium and Chronic Beryllium

  19. Beryllium Program Information - Hanford Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & InspectionsBeryllium and Chronic BerylliumProgram Information

  20. Beryllium Related Links - Hanford Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & InspectionsBeryllium and Chronic BerylliumProgramProgram

  1. The Corrosion / Electrochemistry of Beryllium and Beryllium Weldments in Aqueous Chloride Environments

    E-Print Network [OSTI]

    The Corrosion / Electrochemistry of Beryllium and Beryllium Weldments in Aqueous Chloride described in this report details our progress on the beryllium surveillance project during the 1996 fiscal year. Our goals for FY '96 were two-fold: 1) develop a sensor for monitoring the corrosion of beryllium

  2. Worker Environment Beryllium Characterization Study

    SciTech Connect (OSTI)

    NSTec Environment, Safety, Health & Quality

    2009-12-28

    This report summarizes the conclusion of regular monitoring of occupied buildings at the Nevada Test Site and North Las Vegas facility to determine the extent of beryllium (Be) contamination in accordance with Judgment of Needs 6 of the August 14, 2003, “Minnema Report.”

  3. Jeremy Carter Correctional Magnetic Coils for Beryllium-

    E-Print Network [OSTI]

    Hart, Gus

    Jeremy Carter Correctional Magnetic Coils for Beryllium- based Ion Plasma Chamber Physics 492R was to develop and assemble two sets of identical magnetic coils for the Beryllium based plasma chamber. This particular plasma in nature is Beryllium based and is being studied by various professors, as well

  4. OVERVIEW OF BERYLLIUM SAMPLING AND ANALYSIS

    SciTech Connect (OSTI)

    Brisson, M

    2009-04-01

    Because of its unique properties as a lightweight metal with high tensile strength, beryllium is widely used in applications including cell phones, golf clubs, aerospace, and nuclear weapons. Beryllium is also encountered in industries such as aluminium manufacturing, and in environmental remediation projects. Workplace exposure to beryllium particulates is a growing concern, as exposure to minute quantities of anthropogenic forms of beryllium may lead to sensitization and to chronic beryllium disease, which can be fatal and for which no cure is currently known. Furthermore, there is no known exposure-response relationship with which to establish a 'safe' maximum level of beryllium exposure. As a result, the current trend is toward ever lower occupational exposure limits, which in turn make exposure assessment, both in terms of sampling and analysis, more challenging. The problems are exacerbated by difficulties in sample preparation for refractory forms of beryllium, such as beryllium oxide, and by indications that some beryllium forms may be more toxic than others. This chapter provides an overview of sources and uses of beryllium, health risks, and occupational exposure limits. It also provides a general overview of sampling, analysis, and data evaluation issues that will be explored in greater depth in the remaining chapters. The goal of this book is to provide a comprehensive resource to aid personnel in a wide variety of disciplines in selecting sampling and analysis methods that will facilitate informed decision-making in workplace and environmental settings.

  5. Method for hot pressing beryllium oxide articles

    DOE Patents [OSTI]

    Ballard, Ambrose H. (Oak Ridge, TN); Godfrey, Jr., Thomas G. (Oak Ridge, TN); Mowery, Erb H. (Clinton, TN)

    1988-01-01

    The hot pressing of beryllium oxide powder into high density compacts with little or no density gradients is achieved by employing a homogeneous blend of beryllium oxide powder with a lithium oxide sintering agent. The lithium oxide sintering agent is uniformly dispersed throughout the beryllium oxide powder by mixing lithium hydroxide in an aqueous solution with beryllium oxide powder. The lithium hydroxide is converted in situ to lithium carbonate by contacting or flooding the beryllium oxide-lithium hydroxide blend with a stream of carbon dioxide. The lithium carbonate is converted to lithium oxide while remaining fixed to the beryllium oxide particles during the hot pressing step to assure uniform density throughout the compact.

  6. Beryllium Use in the Advanced Test Reactor

    SciTech Connect (OSTI)

    Glen R. Longhurst

    2007-12-01

    The Advanced Test Reactor (ATR) at the Idaho National Laboratory (INL) began operation in 1967. It makes use of a unique serpentine fuel core design and a beryllium reflector. Reactor control is achieved with rotating beryllium cylinders to which have been fastened plates of hafnium. Over time, the beryllium develops rather high helium content because of nuclear transmutations and begins to swell. The beryllium must be replaced at nominally 10-year intervals. Determination of when the replacement is made is by visual observation using a periscope to examine the beryllium surface for cracking and swelling. Disposition of the irradiated beryllium was once accomplished in the INL’s Radioactive Waste Management Complex, but that is no longer possible. Among contributing reasons are high levels of specific radioactive contaminants including transuranics. The INL is presently considering disposition pathways for this irradiated beryllium, but presently is storing it in the canal adjacent to the reactor. Numerous issues are associated with this situation including (1) Is there a need for ultra-low uranium material? (2) Is there a need to recover tritium from irradiated beryllium either because this is a strategic material resource or in preparation for disposal? (3) Is there a need to remove activation and fission products from irradiated beryllium? (4) Will there be enough material available to meet requirements for research reactors (fission and fusion)? In this paper will be discussed the present status of considerations on these issues.

  7. MANAGING BERYLLIUM IN NUCLEAR FACILITY APPLICATIONS

    SciTech Connect (OSTI)

    R. Rohe; T. N. Tranter

    2011-12-01

    Beryllium plays important roles in nuclear facilities. Its neutron multiplication capability and low atomic weight make it very useful as a reflector in fission reactors. Its low atomic number and high chemical affinity for oxygen have led to its consideration as a plasma-facing material in fusion reactors. In both applications, the beryllium and the impurities in it become activated by neutrons, transmuting them to radionuclides, some of which are long-lived and difficult to dispose of. Also, gas production, notably helium and tritium, results in swelling, embrittlement, and cracking, which means that the beryllium must be replaced periodically, especially in fission reactors where dimensional tolerances must be maintained. It has long been known that neutron activation of inherent iron and cobalt in the beryllium results in significant {sup 60}Co activity. In 2001, it was discovered that activation of naturally occurring contaminants in the beryllium creates sufficient {sup 14}C and {sup 94}Nb to render the irradiated beryllium 'Greater-Than-Class-C' for disposal in U.S. radioactive waste facilities. It was further found that there was sufficient uranium impurity in beryllium that had been used in fission reactors up to that time that the irradiated beryllium had become transuranic in character, making it even more difficult to dispose of. In this paper we review the extent of the disposal issue, processes that have been investigated or considered for improving the disposability of irradiated beryllium, and approaches for recycling.

  8. Inorganic arrangement crystal beryllium, lithium, selenium and silicon

    E-Print Network [OSTI]

    Gobato, Ricardo; Fedrigo, Desire Francine Gobato

    2015-01-01

    The use of inorganic crystals technology has been widely date. Since quartz crystals for watches in the nineteenth century, and common way radio in the early twentieth century, to computer chips with new semiconductor materials. Chemical elements such as beryllium, lithium, selenium and silicon, are widely used in technology. The development of new crystals arising from that arrangement can bring technological advances in several areas of knowledge. The likely difficulty of finding such crystals in nature or synthesized, suggest an advanced study of the subject. A study using computer programs with ab initio method was applied. As a result of the likely molecular structure of the arrangement of a crystal was obtained.

  9. Process for synthesis of beryllium chloride dietherate

    DOE Patents [OSTI]

    Bergeron, Charles (Baton Rouge, LA); Bullard, John E. (Kendall Park, NJ); Morgan, Evan (Lynchburg, VA)

    1991-01-01

    A low temperature method of producing beryllium chloride dietherate through the addition of hydrogen chloride gas to a mixture of beryllium metal in ether in a reaction vessel is described. A reflux condenser provides an exit for hydrogen produced form the reaction. A distillation condenser later replaces the reflux condenser for purifying the resultant product.

  10. BERYLLIUM MEASUREMENT IN COMMERCIALLY AVAILABLE WET WIPES

    SciTech Connect (OSTI)

    Youmans-Mcdonald, L.

    2011-02-18

    Analysis for beryllium by fluorescence is now an established method which is used in many government-run laboratories and commercial facilities. This study investigates the use of this technique using commercially available wet wipes. The fluorescence method is widely documented and has been approved as a standard test method by ASTM International and the National Institute for Occupational Safety and Health (NIOSH). The procedure involves dissolution of samples in aqueous ammonium bifluoride solution and then adding a small aliquot to a basic hydroxybenzoquinoline sulfonate fluorescent dye (Berylliant{trademark} Inc. Detection Solution Part No. CH-2) , and measuring the fluorescence. This method is specific to beryllium. This work explores the use of three different commercial wipes spiked with beryllium, as beryllium acetate or as beryllium oxide and subsequent analysis by optical fluorescence. The effect of possible interfering metals such as Fe, Ti and Pu in the wipe medium is also examined.

  11. ATTACHMENT 1: HANFORD SITE CHRONIC BERYLLIUM DISEASE PREVENTION...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    : HANFORD SITE CHRONIC BERYLLIUM DISEASE PREVENTION PROGRAM (CBDPP) COMMITTEE CHARTER The Hanford Site Chronic Beryllium Disease Prevention Program (CBDPP) Committee is established...

  12. THE IDAHO NATIONAL LABORATORY BERYLLIUM TECHNOLOGY UPDATE

    SciTech Connect (OSTI)

    Glen R. Longhurst

    2007-12-01

    A Beryllium Technology Update meeting was held at the Idaho National Laboratory on July 18, 2007. Participants came from the U.S., Japan, and Russia. There were two main objectives of this meeting. One was a discussion of current technologies for beryllium in fission reactors, particularly the Advanced Test Reactor and the Japan Materials Test Reactor, and prospects for material availability in the coming years. The second objective of the meeting was a discussion of a project of the International Science and Technology Center regarding treatment of irradiated beryllium for disposal. This paper highlights discussions held during that meeting and major conclusions reached

  13. Chronic Beryllium Disease Prevention Program Report

    SciTech Connect (OSTI)

    Lee, S

    2012-03-29

    This document describes how Lawrence Livermore National Laboratory (LLNL) meets the requirements and management practices of federal regulation 10 CFR 850, 'Chronic Beryllium Disease Prevention Program (CBDPP).' This revision of the LLNL CBDPP incorporates clarification and editorial changes based on lessons learned from employee discussions, observations and reviews of Department of Energy (DOE) Complex and commercial industry beryllium (Be) safety programs. The information is used to strengthen beryllium safety practices at LLNL, particularly in the areas of: (1) Management of small parts and components; and (2) Communication of program status to employees. Future changes to LLNL beryllium activities and on-going operating experience will be incorporated into the program as described in Section S, 'Performance Feedback.'

  14. Lithium-Beryllium-Boron : Origin and Evolution

    E-Print Network [OSTI]

    Elisabeth Vangioni-Flam; Michel Casse; Jean Audouze

    1999-07-13

    The origin and evolution of Lithium-Beryllium-Boron is a crossing point between different astrophysical fields : optical and gamma spectroscopy, non thermal nucleosynthesis, Big Bang and stellar nucleosynthesis and finally galactic evolution. We describe the production and the evolution of Lithium-Beryllium-Boron from Big Bang up to now through the interaction of the Standard Galactic Cosmic Rays with the interstellar medium, supernova neutrino spallation and a low energy component related to supernova explosions in galactic superbubbles.

  15. Transgenic Mouse Model of Chronic Beryllium Disease

    SciTech Connect (OSTI)

    Gordon, Terry

    2009-05-26

    Animal models provide powerful tools for dissecting dose-response relationships and pathogenic mechanisms and for testing new treatment paradigms. Mechanistic research on beryllium exposure-disease relationships is severely limited by a general inability to develop a sufficient chronic beryllium disease animal model. Discovery of the Human Leukocyte Antigen (HLA) - DPB1Glu69 genetic susceptibility component of chronic beryllium disease permitted the addition of this human beryllium antigen presentation molecule to an animal genome which may permit development of a better animal model for chronic beryllium disease. Using FVB/N inbred mice, Drs. Rubin and Zhu, successfully produced three strains of HLA-DPB1 Glu 69 transgenic mice. Each mouse strain contains a haplotype of the HLA-DPB1 Glu 69 gene that confers a different magnitude of odds ratio (OR) of risk for chronic beryllium disease: HLA-DPB1*0401 (OR = 0.2), HLA-DPB1*0201 (OR = 15), HLA-DPB1*1701 (OR = 240). In addition, Drs. Rubin and Zhu developed transgenic mice with the human CD4 gene to permit better transmission of signals between T cells and antigen presenting cells. This project has maintained the colonies of these transgenic mice and tested the functionality of the human transgenes.

  16. Chronic beryllium disease: Diagnosis and management

    SciTech Connect (OSTI)

    Rossman, M.D.

    1996-10-01

    Chronic beryllium disease is predominantly a pulmonary granulomatosis that was originally described in 1946. Symptoms usually include dyspnea and cough. Fever, anorexia, and weight loss are common. Skin lesions are the most common extrathoracic manifestation. Granulomatous hepatitis, hypercalcemia, and kidney stones can also occur. Radiographic and physiologic abnormalities are similar to those in sarcoidosis. While traditionally the pathologic changes included granulomas and cellular interstitial changes, the hallmark of the disease today is the well-formed granuloma. Immunologic studies have demonstrated a cell-mediated response to beryllium that is due to an accumulation of CD4{sup +} T cells at the site of disease activity. Diagnosis depends on the demonstration of pathologic changes (i.e., granuloma) and evidence that the granuloma was caused by a hypersensitivity to beryllium (i.e., positive lung proliferative response to beryllium). Using these criteria, the diagnosis of chronic beryllium disease can now be made before the onset of clinical symptoms. Whether, with early diagnosis, the natural course of this condition will be the same as when it was traditionally diagnosed is not known. Currently, corticosteroids are used to treat patients with significant symptoms or evidence of progressive disease. 21 refs.

  17. Progress on a Cavity with Beryllium Walls for Muon Ionization Cooling Channel R&D.

    E-Print Network [OSTI]

    Bowring, D.L.

    2014-01-01

    ON A CAVITY WITH BERYLLIUM WALLS FOR MUON IONIZATION COOLINGFabricating a cavity with beryllium walls would mitigatepillbox RF cavity with beryllium walls, in order to evaluate

  18. Beryllium Facilities & Areas - Hanford Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & InspectionsBeryllium and Chronic Beryllium DiseaseFAQs About

  19. Beryllium Program Performance Assessments - Hanford Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & InspectionsBeryllium and Chronic BerylliumProgram

  20. Beryllium Program Points of Contact - Hanford Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & InspectionsBeryllium and Chronic BerylliumProgramProgram Points

  1. April 7, 1998 Studies of Coolant Compatibility with Beryllium

    E-Print Network [OSTI]

    Cinabro, David

    CBX 98­8 April 7, 1998 D.Cinabro S.McGee Studies of Coolant Compatibility with Beryllium Abstract A study of the petroleum­based coolant, PF200, has found it to be chemically compat­ ible with beryllium. These features make PF200 a suitable substitute for water in the coolant system of CLEO's beryllium beam pipe. 1

  2. Relativistic and QED corrections for the Beryllium atom Krzysztof Pachucki

    E-Print Network [OSTI]

    Pachucki, Krzysztof

    Relativistic and QED corrections for the Beryllium atom Krzysztof Pachucki #3; Institute are calculated for the ground state of the beryllium atom and its positive ion. A basis set of correlated of high precision theoretical predictions for energy levels of the beryllium atom and light ions. Our

  3. Chronic Beryllium Disease Prevention Environment, Safety, Health, and Quality Division

    E-Print Network [OSTI]

    Wechsler, Risa H.

    Chronic Beryllium Disease Prevention Program Environment, Safety, Health, and Quality Division SLAC-I-730-0A09M-001-R003 24 September 2013 #12;Publication Data This document was developed by the Beryllium program and published by ESHQ Publishing. Document Title: Chronic Beryllium Disease Prevention Program

  4. DEVELOPMENT OF A MEVVA BASED BERYLLIUM7 PLASMA SOURCE

    E-Print Network [OSTI]

    Hart, Gus

    DEVELOPMENT OF A MEVVA BASED BERYLLIUM­7 PLASMA SOURCE by David K. Olson A thesis submitted Dean College of Mathematics and Physical Sciences #12;ABSTRACT DEVELOPMENT OF A MEVVA BASED BERYLLIUM­7 source designs. Our pri- mary intent with this MeVVA­type source is to create a confinable beryllium-7 (7

  5. Neutron counter based on beryllium activation

    SciTech Connect (OSTI)

    Bienkowska, B.; Prokopowicz, R.; Kaczmarczyk, J.; Paducha, M. [Institute of Plasma Physics and Laser Microfusion (IPPLM), Hery 23, 01-497 Warsaw (Poland); Scholz, M.; Igielski, A. [Institute of Nuclear Physics PAS (IFJPAN), Radzikowskiego 152, 31-342 Krakow (Poland); Karpinski, L. [Faculty of Electrical Engineering, Rzeszow University of Technology, Pola 2, 35-959 Rzeszow (Poland); Pytel, K. [National Centre for Nuclear Research (NCBJ), Soltana 7, 05-400 Otwock - Swierk (Poland)

    2014-08-21

    The fusion reaction occurring in DD plasma is followed by emission of 2.45 MeV neutrons, which carry out information about fusion reaction rate and plasma parameters and properties as well. Neutron activation of beryllium has been chosen for detection of DD fusion neutrons. The cross-section for reaction {sup 9}Be(n, ?){sup 6}He has a useful threshold near 1 MeV, which means that undesirable multiple-scattered neutrons do not undergo that reaction and therefore are not recorded. The product of the reaction, {sup 6}He, decays with half-life T{sub 1/2} = 0.807 s emitting ?{sup ?} particles which are easy to detect. Large area gas sealed proportional detector has been chosen as a counter of ?–particles leaving activated beryllium plate. The plate with optimized dimensions adjoins the proportional counter entrance window. Such set-up is also equipped with appropriate electronic components and forms beryllium neutron activation counter. The neutron flux density on beryllium plate can be determined from the number of counts. The proper calibration procedure needs to be performed, therefore, to establish such relation. The measurements with the use of known ?–source have been done. In order to determine the detector response function such experiment have been modeled by means of MCNP5–the Monte Carlo transport code. It allowed proper application of the results of transport calculations of ?{sup ?} particles emitted from radioactive {sup 6}He and reaching proportional detector active volume. In order to test the counter system and measuring procedure a number of experiments have been performed on PF devices. The experimental conditions have been simulated by means of MCNP5. The correctness of simulation outcome have been proved by measurements with known radioactive neutron source. The results of the DD fusion neutron measurements have been compared with other neutron diagnostics.

  6. Determination of Natural Beryllium (Be) in Soil and Swipe Samples Utilizing Yttrium/Beryllium Ratio

    SciTech Connect (OSTI)

    None

    2010-09-30

    1. Objective: A method to determine whether beryllium (Be) components in surface swipe samples are from a natural source is needed. 2. Methods: Soil samples and surface swipes from area facilities were analyzed for marker elements to identify source pathways for beryllium (Be). To be useful, the natural marker element must be present at reasonably consistent levels across the site, must correlate with the Be concentration, and not have the potential to be present from non-natural sources. 3. Results: The research on marker elements used to identify source pathways for beryllium (Be) concentrations demonstrates a clear correlation between Be and yttrium (Y) in natural soils on the Nevada National Security Site. The Y/Be ratio is proposed as a method to characterize the source of Be in soil and surface swipe samples and to aid in recommendations for follow up actions. Swipe samples are analyzed using an ICP/MS method and compared with results from soil samples. Natural soil constituent levels and the Y/Be Ratio range is determined for the occupied and historical facilities and surrounding areas. Y/Be ratios within the statistical range established indicate the Be is from a natural source. Y/Be ratios lower than this range indicate the presence of another Be source, and may then be correlated to alloy, ceramic, or other operational sources by the ratios of copper, nickel, cobalt, uranium, and/or niobium. Example case studies of evaluations of buildings with historical operational beryllium usage, current ongoing technical processes, and heavy equipment used in large building demolitions are included demonstrating the value of the ratio approach. 4. Conclusions: This differentiation is valuable as there is no known correlation between natural beryllium in soil and beryllium disease.

  7. Density functional study of hydrogen adsorption on beryllium (0001)

    SciTech Connect (OSTI)

    Allouche, A. [Physique des Interactions Ioniques et Moleculaires, CNRS and Universite de Provence, Campus Scientifique de Saint Jerome, service 242, 13397 Marseille Cedex 20 (France)

    2008-08-15

    Beryllium, tungsten, and carbon are planned as wall materials for the future international tokamak. Although beryllium is not situated in a region submitted to the most dramatic plasma-wall interaction, its reactivity toward hydrogen atom impinging is of fundamental importance. This paper is devoted to theoretical study of hydrogen adsorption on the beryllium (0001) surface based on the first-principles discrete Fourier transform method. Comparison is proposed to former theoretical works and to thermal-desorption spectroscopy.

  8. Beryllium-7 labeled carbon particles and method of making

    DOE Patents [OSTI]

    Richards, P.; Mausner, L.F.; Prach, T.F.

    1985-04-29

    Beryllium-7 labeled carbon particles made from the proton irradiation of carbon materials, preferably from dry carbon black are disclosed. Such particles are useful as gamma emitting radiotracers.

  9. Beryllium-7 Implantation in Plastics for Prosthesis Wear Studies...

    Office of Science (SC) Website

    Beryllium-7 Implantation in Plastics for Prosthesis Wear Studies Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Applications of Nuclear...

  10. Microsoft Word - Beryllium Report Released NR - FINAL.doc

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    RELEASE: Geoff Tyree (509) 376-4171 June 2, 2010 INDEPENDENT INSPECTION FINDS HANFORD BERYLLIUM PROGRAM IMPROVED, BUT MORE WORK NEEDED Richland, WA - The Department of Energy today...

  11. Beryllium-7 labeled carbon particles and method of making

    DOE Patents [OSTI]

    Richards, P.; Mausner, L.F.; Prach, T.F.

    1987-11-17

    Beryllium-7 labeled carbon particles made from the proton irradiation of carbon materials, preferably from dry carbon black are disclosed. Such particles are useful as gamma emitting radiotracers.

  12. Beryllium-7 labeled carbon particles and method of making

    DOE Patents [OSTI]

    Richards, Powell (New Bern, NC); Mausner, Leonard F. (Stony Brook, NY); Prach, Thomas F. (Port Jefferson, NY)

    1987-01-01

    Beryllium-7 labeled carbon particles made from the proton irradiation of carbon materials, preferably from dry carbon black are disclosed. Such particles are useful as gamma emitting radiotracers.

  13. The Rocky Flats Environmental Technology Site beryllium characterization project

    SciTech Connect (OSTI)

    Morrell, D.M.; Miller, J.R.; Allen, D.F.

    1999-06-01

    A site beryllium characterization project was completed at the Rocky Flats Environmental Technology Site (RFETS) in 1997. Information from historical reviews, previous sampling surveys, and a new sampling survey were used to establish a more comprehensive understanding of the locations and levels of beryllium contamination in 35 buildings. A feature of the sampling strategy was to test if process knowledge was a good predictor of where beryllium contamination could be found. Results revealed that this technique was effective at identifying where surface contamination levels might exceed the RFETS smear control level but that it was not effective in identifying where low concentrations of beryllium might be found.

  14. ORISE: Worker Health Studies - Testing Beryllium Vendor Populations

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    for Science and Education (ORISE) to manage the program. ORISE administers a brief health questionnaire and a blood test known as the beryllium lymphocyte proliferation test...

  15. Characterization of NIF cryogenic beryllium capsules using x...

    Office of Scientific and Technical Information (OSTI)

    phase contrast imaging. Beryllium capsules filled with cryogenic deuterium and tritium fuel layers may provide many advantages for obtaining ignition at the National Ignition...

  16. LLNS Beryllium Consent Order Fact Sheet

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nAand DOE Safety Standards Implementationfy 2015 June 2,LLNS Beryllium Consent

  17. SECONDARY FIELD PETITION FORM Department of Psychology

    E-Print Network [OSTI]

    SECONDARY FIELD PETITION FORM Department of Psychology This form is to be used for any course substantial overlap with the material covered in Psychology 1900 or Stat 100/101/102/104. Attach a statement and a syllabus. Courses taken elsewhere (transfer students only): Petitions for psychology courses taken

  18. Cosmic Lithium-Beryllium-Boron Story

    E-Print Network [OSTI]

    Elisabeth Vangioni-Flam; Michel Casse

    1999-02-04

    Light element nucleosynthesis is an important chapter of nuclear astrophysics. Specifically, the rare and fragile light nuclei Lithium, Beryllium and Boron (LiBeB) are not generated in the normal course of stellar nucleosynthesis (except Li7) and are, in fact, destroyed in stellar interiors. This characteristic is reflected in the low abundance of these simple species. Optical measurements of the beryllium and boron abundances in halo stars have been achieved by the 10 meter KECK telescope and the Hubble Space Telescope.These observations indicate a quasi linear correlation between Be and B vs Fe, at least at low metallicity. Aside GCRs, which are accelerated in the general interstellar medium (ISM) and create LiBeB through the break up of CNO by fast protons and alphas, Wolf-Rayet stars (WR) and core collapse supernovae (SNII) grouped in superbubbles could produce copious amounts of light elements via the fragmentation in flight of rapid carbon and oxygen nuclei colliding with H and He in the ISM.

  19. Thick beryllium coatings by magnetron sputtering

    SciTech Connect (OSTI)

    Wu, H; Nikroo, A; Youngblood, K; Moreno, K; Wu, D; Fuller, T; Alford, C; Hayes, J; Detor, A; Wong, M; Hamza, A; van Buuren, T; Chason, E

    2011-04-14

    Thick (>150 {micro}m) beryllium coatings are studied as an ablator material of interest for fusion fuel capsules for the National Ignition Facility (NIF). As an added complication, the coatings are deposited on mm-scale spherical substrates, as opposed to flats. DC magnetron sputtering is used because of the relative controllability of the processing temperature and energy of the deposits. We used ultra small angle x-ray spectroscopy (USAXS) to characterize the void fraction and distribution along the spherical surface. We investigated the void structure using a combination focused ion beam (FIB) and scanning electron microscope (SEM), along with transmission electron microscopy (TEM). Our results show a few volume percent of voids and a typical void diameter of less than two hundred nanometers. Understanding how the stresses in the deposited material develop with thickness is important so that we can minimize film cracking and delamination. To that end, an in-situ multiple optical beam stress sensor (MOSS) was used to measure the stress behavior of thick Beryllium coatings on flat substrates as the material was being deposited. We will show how the film stress saturates with thickness and changes with pressure.

  20. Hybrid Orbital and Numerical Grid Representationfor Electronic Continuum Processes: Double Photoionization of Atomic Beryllium

    E-Print Network [OSTI]

    Yip, Frank L

    2010-01-01

    photoionization from beryllium This work was performed underPhotoionization of Atomic Beryllium F. L. Yip, 1 C. W.photoionization of beryllium is treated in a calculation in

  1. Quantitative method of determining beryllium or a compound thereof in a sample

    DOE Patents [OSTI]

    McCleskey, T. Mark; Ehler, Deborah S.; John, Kevin D.; Burrell, Anthony K.; Collis, Gavin E.; Minogue, Edel M.; Warner, Benjamin P.

    2006-10-31

    A method of determining beryllium or a beryllium compound thereof in a sample, includes providing a sample suspected of comprising beryllium or a compound thereof, extracting beryllium or a compound thereof from the sample by dissolving in a solution, adding a fluorescent indicator to the solution to thereby bind any beryllium or a compound thereof to the fluorescent indicator, and determining the presence or amount of any beryllium or a compound thereof in the sample by measuring fluorescence.

  2. Quantitative method of determining beryllium or a compound thereof in a sample

    SciTech Connect (OSTI)

    McCleskey, T. Mark (Los Alamos, NM); Ehler, Deborah S. (Los Alamos, NM); John, Kevin D. (Santa Fe, NM); Burrell, Anthony K. (Los Alamos, NM); Collis, Gavin E. (Los Alamos, NM); Minogue, Edel M. (Los Alamos, NM); Warner, Benjamin P. (Los Alamos, NM)

    2010-08-24

    A method of determining beryllium or a beryllium compound thereof in a sample, includes providing a sample suspected of comprising beryllium or a compound thereof, extracting beryllium or a compound thereof from the sample by dissolving in a solution, adding a fluorescent indicator to the solution to thereby bind any beryllium or a compound thereof to the fluorescent indicator, and determining the presence or amount of any beryllium or a compound thereof in the sample by measuring fluorescence.

  3. Method for fabricating beryllium-based multilayer structures

    DOE Patents [OSTI]

    Skulina, Kenneth M. (Livermore, CA); Bionta, Richard M. (Livermore, CA); Makowiecki, Daniel M. (Livermore, CA); Alford, Craig S. (Tracy, CA)

    2003-02-18

    Beryllium-based multilayer structures and a process for fabricating beryllium-based multilayer mirrors, useful in the wavelength region greater than the beryllium K-edge (111 .ANG. or 11.1 nm). The process includes alternating sputter deposition of beryllium and a metal, typically from the fifth row of the periodic table, such as niobium (Nb), molybdenum (Mo), ruthenium (Ru), and rhodium (Rh). The process includes not only the method of sputtering the materials, but the industrial hygiene controls for safe handling of beryllium. The mirrors made in accordance with the process may be utilized in soft x-ray and extreme-ultraviolet projection lithography, which requires mirrors of high reflectivity (>60%) for x-rays in the range of 60-140 .ANG. (60-14.0 nm).

  4. Hydrodynamic instabilities in beryllium targets for the National Ignition Facility

    SciTech Connect (OSTI)

    Yi, S. A., E-mail: austinyi@lanl.gov; Simakov, A. N.; Wilson, D. C.; Olson, R. E.; Kline, J. L.; Batha, S. H. [Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545 (United States); Clark, D. S.; Hammel, B. A.; Milovich, J. L.; Salmonson, J. D.; Kozioziemski, B. J. [Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551 (United States)

    2014-09-15

    Beryllium ablators offer higher ablation velocity, rate, and pressure than their carbon-based counterparts, with the potential to increase the probability of achieving ignition at the National Ignition Facility (NIF) [E. I. Moses et al., Phys. Plasmas 16, 041006 (2009)]. We present here a detailed hydrodynamic stability analysis of low (NIF Revision 6.1) and high adiabat NIF beryllium target designs. Our targets are optimized to fully utilize the advantages of beryllium in order to suppress the growth of hydrodynamic instabilities. This results in an implosion that resists breakup of the capsule, and simultaneously minimizes the amount of ablator material mixed into the fuel. We quantify the improvement in stability of beryllium targets relative to plastic ones, and show that a low adiabat beryllium capsule can be at least as stable at the ablation front as a high adiabat plastic target.

  5. THE RELATIONSHIP BETWEEN CRYSTALLOGRAPHIC ORIENTATION AND THE PASSIVITY AND BREAKDOWN OF BERYLLIUM

    E-Print Network [OSTI]

    THE RELATIONSHIP BETWEEN CRYSTALLOGRAPHIC ORIENTATION AND THE PASSIVITY AND BREAKDOWN OF BERYLLIUM corrosion for S200D beryllium (Be) was found to decrease logarithmically with increasing chloride

  6. Primordial beryllium as a big bang calorimeter

    E-Print Network [OSTI]

    Maxim Pospelov; Josef Pradler

    2011-03-23

    Many models of new physics including variants of supersymmetry predict metastable long-lived particles that can decay during or after primordial nucleosynthesis, releasing significant amounts of non-thermal energy. The hadronic energy injection in these decays leads to the formation of ^9Be via the chain of non-equilibrium transformations: Energy_h -> T, ^3He -> ^6He, ^6Li -> ^9Be. We calculate the efficiency of this transformation and show that if the injection happens at cosmic times of a few hours, the release of 10 MeV per baryon can be sufficient for obtaining a sizable ^9Be abundance. The absence of a plateau-structure in the ^9Be/H abundance down to a 10^{-14} level allows one to use beryllium as a robust constraint on new physics models with decaying or annihilating particles.

  7. Beryllium abundances in metal-poor stars

    E-Print Network [OSTI]

    K. F. Tan; J. R. Shi; G. Zhao

    2008-10-15

    We have determined beryllium abundances for 25 metal-poor stars based on the high resolution and high signal-to-noise ratio spectra from the VLT/UVES database. Our results confirm that Be abundances increase with Fe, supporting the global enrichment of Be in the Galaxy. Oxygen abundances based on [O I] forbidden line implies a linear relation with a slope close to one for the Be vs. O trend, which indicates that Be is probably produced in a primary process. Some strong evidences are found for the intrinsic dispersion of Be abundances at a given metallicity. The deviation of HD132475 and HD126681 from the general Be vs. Fe and Be vs. O trend favours the predictions of the superbubble model, though the possibility that such dispersion originates from the inhomogeneous enrichment in Fe and O of the protogalactic gas cannot be excluded.

  8. Primordial Beryllium as a Big Bang Calorimeter

    SciTech Connect (OSTI)

    Pospelov, Maxim [Perimeter Institute for Theoretical Physics, Waterloo, Ontario, N2L 2Y5 (Canada)] [Department of Physics and Astronomy, University of Victoria, Victoria, British Columbia, V8P 1A1 (Canada); Pradler, Josef [Perimeter Institute for Theoretical Physics, Waterloo, Ontario, N2L 2Y5 (Canada)

    2011-03-25

    Many models of new physics including variants of supersymmetry predict metastable long-lived particles that can decay during or after primordial nucleosynthesis, releasing significant amounts of nonthermal energy. The hadronic energy injection in these decays leads to the formation of {sup 9}Be via the chain of nonequilibrium transformations: Energy{sub h}{yields}T, {sup 3}He{yields}{sup 6}He, {sup 6}Li{yields}{sup 9}Be. We calculate the efficiency of this transformation and show that if the injection happens at cosmic times of a few hours the release of O(10 MeV) per baryon can be sufficient for obtaining a sizable {sup 9}Be abundance. The absence of a plateau structure in the {sup 9}Be/H abundance down to a O(10{sup -14}) level allows one to use beryllium as a robust constraint on new physics models with decaying or annihilating particles.

  9. Stellar abundances of beryllium and CUBES

    E-Print Network [OSTI]

    Smiljanic, R

    2014-01-01

    Stellar abundances of beryllium are useful in different areas of astrophysics, including studies of the Galactic chemical evolution, of stellar evolution, and of the formation of globular clusters. Determining Be abundances in stars is, however, a challenging endeavor. The two Be II resonance lines useful for abundance analyses are in the near UV, a region strongly affected by atmospheric extinction. CUBES is a new spectrograph planned for the VLT that will be more sensitive than current instruments in the near UV spectral region. It will allow the observation of fainter stars, expanding the number of targets where Be abundances can be determined. Here, a brief review of stellar abundances of Be is presented together with a discussion of science cases for CUBES. In particular, preliminary simulations of CUBES spectra are presented, highlighting its possible impact in investigations of Be abundances of extremely metal-poor stars and of stars in globular clusters.

  10. Beryllium Health and Safety Committee Data Reporting Task Force

    SciTech Connect (OSTI)

    MacQueen, D H

    2007-02-21

    On December 8, 1999, the Department of Energy (DOE) published Title 10 CFR 850 (hereafter referred to as the Rule) to establish a chronic beryllium disease prevention program (CBDPP) to: {sm_bullet} reduce the number of workers currently exposed to beryllium in the course of their work at DOE facilities managed by DOE or its contractors, {sm_bullet} minimize the levels of, and potential for, expos exposure to beryllium, and {sm_bullet} establish medical surveillance requirements to ensure early detection of the disease.

  11. DUAL CAREER FAMILY PETITION Harvard Medical School

    E-Print Network [OSTI]

    Mootha, Vamsi K.

    DUAL CAREER FAMILY PETITION Harvard Medical School Name: Harvard Title: Title of Proposal: Sponsor employee of the company, title/position, department or group, and job responsibilities: If employee, please

  12. The Requirements for Collision Data on the Species Helium, Beryllium and Boron in Magnetic Confinement Fusion

    E-Print Network [OSTI]

    The Requirements for Collision Data on the Species Helium, Beryllium and Boron in Magnetic Confinement Fusion

  13. Beryllium and Other Trace Elements in Paragneisses and Anatectic Veins of the

    E-Print Network [OSTI]

    Sandiford, Mike

    Beryllium and Other Trace Elements in Paragneisses and Anatectic Veins of the Ultrahigh-bearing paragneisses. KEY WORDS: Antarctica; beryllium; granulite facies; microprobe; sapphirine INTRODUCTION Beryllium in granitic pegmatites where beryllium minerals, most com- monly beryl, are found (e.g. London & Evensen, 2002

  14. Investigation of the Dashigil mud volcano (Azerbaijan) using beryllium-10 K.J. Kim a,

    E-Print Network [OSTI]

    Investigation of the Dashigil mud volcano (Azerbaijan) using beryllium-10 K.J. Kim a, , M. Baskaran: Mud volcano Hydrothermal Beryllium-10 Beryllium isotopes Subduction Cosmogenic nuclide a b s t r a c Caucasus Mountains and 160 marine volcanoes (Fig. 1). Beryllium isotopes have been extensively utilized

  15. Persons Who Received the DC PSC's Emergency Petition and Complaint...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Persons Who Received the DC PSC's Emergency Petition and Complaint via E-mail on August 24, 2005 Persons Who Received the DC PSC's Emergency Petition and Complaint via E-mail on...

  16. ORISE: Ann Gehl named new manager of Beryllium Lymphocyte Proliferatio...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    individuals at higher risk of developing Chronic Beryllium Disease that scars the lungs. In 2013, the lab processed nearly 4,100 such tests without a single error. Located in...

  17. Development of Biomarkers for Chronic Beryllium Disease in Mice

    SciTech Connect (OSTI)

    Gordon, Terry

    2013-01-25

    Beryllium is a strategic metal, indispensable for national defense programs in aerospace, telecommunications, electronics, and weaponry. Exposure to beryllium is an extensively documented occupational hazard that causes irreversible, debilitating granulomatous lung disease in as much as 3 - 5% of exposed workers. Mechanistic research on beryllium exposure-disease relationships has been severely limited by a general lack of a sufficient CBD animal model. We have now developed and tested an animal model which can be used for dissecting dose-response relationships and pathogenic mechanisms and for testing new diagnostic and treatment paradigms. We have created 3 strains of transgenic mice in which the human antigen-presenting moiety, HLA-DP, was inserted into the mouse genome. Each mouse strain contains HLA-DPB1 alleles that confer different magnitude of risk for chronic beryllium disease (CBD): HLA-DPB1*0401 (odds ratio = 0.2), HLA-DPB1*0201 (odds ratio = 15), HLA-DPB1*1701 (odds ratio = 240). Our preliminary work has demonstrated that the *1701 allele, as predicted by human studies, results in the greatest degree of sensitization in a mouse ear swelling test. We have also completed dose-response experiments examining beryllium-induced lung granulomas and identified susceptible and resistant inbred strains of mice (without the human transgenes) as well as quantitative trait loci that may contain gene(s) that modify the immune response to beryllium. In this grant application, we propose to use the transgenic and Â?normal inbred strains of mice to identify biomarkers for the progression of beryllium sensitization and CBD. To achieve this goal, we propose to compare the sensitivity and accuracy of the lymphocyte proliferation test (blood and bronchoalveolar lavage fluid) with the ELISPOT test in the three HLA-DP transgenic mice strains throughout a 6 month treatment with beryllium particles. Because of the availability of high-throughput proteomics, we will also identify changes in potential protein biomarkers in beryllium-treated mice. We will correlate these findings with the ability of the transgenic mice to develop a beryllium-specific adaptive immune response in blood and bronchoalveolar lavage (BAL) fluid. We will also determine whether beryllium-responsive CD4+ T cells in blood and BAL correlate with the onset of granuloma formation. Thus, we will provide the scientific community with biomarkers of sensitization and disease progression for CBD. These biomarkers will serve as critical tools for development of improved industrial hygiene and therapeutic interventions.

  18. Beryllium abundances in stars hosting giant planets

    E-Print Network [OSTI]

    N. C. Santos; R. J. Garcia Lopez; G. Israelian; M. Mayor; R. Rebolo; A. Garcia-Gil; M. R. Perez de Taoro; S. Randich

    2002-02-25

    We have derived beryllium abundances in a wide sample of stars hosting planets, with spectral types in the range F7V-K0V, aimed at studying in detail the effects of the presence of planets on the structure and evolution of the associated stars. Predictions from current models are compared with the derived abundances and suggestions are provided to explain the observed inconsistencies. We show that while still not clear, the results suggest that theoretical models may have to be revised for stars with Teff<5500K. On the other hand, a comparison between planet host and non-planet host stars shows no clear difference between both populations. Although preliminary, this result favors a ``primordial'' origin for the metallicity ``excess'' observed for the planetary host stars. Under this assumption, i.e. that there would be no differences between stars with and without giant planets, the light element depletion pattern of our sample of stars may also be used to further investigate and constraint Li and Be depletion mechanisms.

  19. Actinide/beryllium neutron sources with reduced dispersion characteristics

    DOE Patents [OSTI]

    Schulte, Louis D.

    2012-08-14

    Neutron source comprising a composite, said composite comprising crystals comprising BeO and AmBe.sub.13, and an excess of beryllium, wherein the crystals have an average size of less than 2 microns; the size distribution of the crystals is less than 2 microns; and the beryllium is present in a 7-fold to a 75-fold excess by weight of the amount of AmBe.sub.13; and methods of making thereof.

  20. Application of RIMS to the Study of Beryllium ChronologyApplication of RIMS to the Study of Beryllium Chronology in Early Solar System Condensatesin Early Solar System Condensates

    E-Print Network [OSTI]

    Grossman, Lawrence

    Application of RIMS to the Study of Beryllium ChronologyApplication of RIMS to the Study of Beryllium Chronology in Early Solar System Condensatesin Early Solar System Condensates K. B. Knight1, Beryllium and Boron in the Early Solar System Many unanswered questions remain concerning the timing

  1. Removing tritium and other impurities during industrial recycling of beryllium from a fusion reactor

    SciTech Connect (OSTI)

    Dylst, K.; Seghers, J.; Druyts, F.; Braet, J. [SCK-CEN, Boeretang 200, 2400 Mol (Belgium)

    2008-07-15

    Recycling beryllium used in a fusion reactor might be a good way to overcome problems related to the disposal of neutron irradiated beryllium. The critical issues for the recycling of used first wall beryllium are the presence of tritium and (transuranic) impurities. High temperature annealing seems to be the most promising technique for detritiation. Purification of the de-tritiated beryllium can be achieved by chlorination of the irradiated beryllium and the subsequent reduction of beryllium chloride to highly pure metallic beryllium. After that, the beryllium can be re-fabricated into first wall tiles via powder metallurgy which is already a mature industrial practice. This paper outlines the path to define the experimental needs for beryllium recycling and tackles problems related to the detritiation and the purification via the chlorine route. (authors)

  2. Method for removal of beryllium contamination from an article

    SciTech Connect (OSTI)

    Simandl, Ronald F.; Hollenbeck, Scott M.

    2012-12-25

    A method of removal of beryllium contamination from an article is disclosed. The method typically involves dissolving polyisobutylene in a solvent such as hexane to form a tackifier solution, soaking the substrate in the tackifier to produce a preform, and then drying the preform to produce the cleaning medium. The cleaning media are typically used dry, without any liquid cleaning agent to rub the surface of the article and remove the beryllium contamination below a non-detect level. In some embodiments no detectible residue is transferred from the cleaning wipe to the article as a result of the cleaning process.

  3. CHAPTER 7. BERYLLIUM ANALYSIS BY NON-PLASMA BASED METHODS

    SciTech Connect (OSTI)

    Ekechukwu, A

    2009-04-20

    The most common method of analysis for beryllium is inductively coupled plasma atomic emission spectrometry (ICP-AES). This method, along with inductively coupled plasma mass spectrometry (ICP-MS), is discussed in Chapter 6. However, other methods exist and have been used for different applications. These methods include spectroscopic, chromatographic, colorimetric, and electrochemical. This chapter provides an overview of beryllium analysis methods other than plasma spectrometry (inductively coupled plasma atomic emission spectrometry or mass spectrometry). The basic methods, detection limits and interferences are described. Specific applications from the literature are also presented.

  4. Validation of cleaning method for various parts fabricated at a Beryllium facility

    SciTech Connect (OSTI)

    Davis, Cynthia M.

    2015-12-15

    This study evaluated and documented a cleaning process that is used to clean parts that are fabricated at a beryllium facility at Los Alamos National Laboratory. The purpose of evaluating this cleaning process was to validate and approve it for future use to assure beryllium surface levels are below the Department of Energy’s release limits without the need to sample all parts leaving the facility. Inhaling or coming in contact with beryllium can cause an immune response that can result in an individual becoming sensitized to beryllium, which can then lead to a disease of the lungs called chronic beryllium disease, and possibly lung cancer. Thirty aluminum and thirty stainless steel parts were fabricated on a lathe in the beryllium facility, as well as thirty-two beryllium parts, for the purpose of testing a parts cleaning method that involved the use of ultrasonic cleaners. A cleaning method was created, documented, validated, and approved, to reduce beryllium contamination.

  5. Controlling Beryllium Contaminated Material And Equipment For The Building 9201-5 Legacy Material Disposition Project

    SciTech Connect (OSTI)

    Reynolds, T. D.; Easterling, S. D.

    2010-10-01

    This position paper addresses the management of beryllium contamination on legacy waste. The goal of the beryllium management program is to protect human health and the environment by preventing the release of beryllium through controlling surface contamination. Studies have shown by controlling beryllium surface contamination, potential airborne contamination is reduced or eliminated. Although there are areas in Building 9201-5 that are contaminated with radioactive materials and mercury, only beryllium contamination is addressed in this management plan. The overall goal of this initiative is the compliant packaging and disposal of beryllium waste from the 9201-5 Legacy Material Removal (LMR) Project to ensure that beryllium surface contamination and any potential airborne release of beryllium is controlled to levels as low as practicable in accordance with 10 CFR 850.25.

  6. Beryllium processing technology review for applications in plasma-facing components

    SciTech Connect (OSTI)

    Castro, R.G.; Jacobson, L.A.; Stanek, P.W.

    1993-07-01

    Materials research and development activities for the International Thermonuclear Experimental Reactor (ITER), i.e., the next generation fusion reactor, are investigating beryllium as the first-wall containment material for the reactor. Important in the selection of beryllium is the ability to process, fabricate and repair beryllium first-wall components using existing technologies. Two issues that will need to be addressed during the engineering design activity will be the bonding of beryllium tiles in high-heat-flux areas of the reactor, and the in situ repair of damaged beryllium tiles. The following review summarizes the current technology associated with welding and joining of beryllium to itself and other materials, and the state-of-the-art in plasma-spray technology as an in situ repair technique for damaged beryllium tiles. In addition, a review of the current status of beryllium technology in the former Soviet Union is also included.

  7. Lithium-Beryllium-Boron Isotopic Compositions in Meteoritic Hibonite: Implications for Origin of 10

    E-Print Network [OSTI]

    Nittler, Larry R.

    Lithium-Beryllium-Boron Isotopic Compositions in Meteoritic Hibonite: Implications for Origin of 10. 2003; Marhas & Goswami 2003). Beryllium-10 and 7 Be are primarily produced through the same

  8. Validation of cleaning method for various parts fabricated at a beryllium facility

    SciTech Connect (OSTI)

    Davis, Cynthia M.

    2015-12-11

    This report describes beryllium and its effect on human health. Furthermore, it proposes strategies for safe use in the lab.

  9. Beryllium Wipe Sampling (differing methods - differing exposure potentials)

    SciTech Connect (OSTI)

    Kerr, Kent

    2005-03-09

    This research compared three wipe sampling techniques currently used to test for beryllium contamination on room and equipment surfaces in Department of Energy facilities. Efficiencies of removal of beryllium contamination from typical painted surfaces were tested by wipe sampling without a wetting agent, with water-moistened wipe materials, and by methanol-moistened wipes. Analysis indicated that methanol-moistened wipe sampling removed about twice as much beryllium/oil-film surface contamination as water-moistened wipes, which removed about twice as much residue as dry wipes. Criteria at 10 CFR 850.30 and .31 were established on unspecified wipe sampling method(s). The results of this study reveal a need to identify criteria-setting method and equivalency factors. As facilities change wipe sampling methods among the three compared in this study, these results may be useful for approximate correlations. Accurate decontamination decision-making depends on the selection of appropriate wetting agents for the types of residues and surfaces. Evidence for beryllium sensitization via skin exposure argues in favor of wipe sampling with wetting agents that provide enhanced removal efficiency such as methanol when surface contamination includes oil mist residue.

  10. Modeling Climate and Production-related Impacts on Ice-core Beryllium-10

    E-Print Network [OSTI]

    Modeling Climate and Production-related Impacts on Ice-core Beryllium-10 Christy Veeder Submitted Modeling Climate and Production-related Impacts on Ice-core Beryllium-10 Christy Veeder I use the Goddard Institute for Space Studies ModelE general circulation model to ex- amine the how beryllium-10, a cosmogenic

  11. Using beryllium-7 to assess cross-tropopause1 transport in global models2

    E-Print Network [OSTI]

    Liu, Hongyu

    1 Using beryllium-7 to assess cross-tropopause1 transport in global models2 3 Hongyu Liu1 , David B, MA13 14 Short Title: Beryllium-7 and cross-tropopause transport15 Index Terms: 0368 Troposphere Initiative (GMI) modeling framework the29 utility of cosmogenic beryllium-7 (7 Be), a natural aerosol tracer

  12. Beryllium Material Tests HiRadMat windows and NOA fins

    E-Print Network [OSTI]

    McDonald, Kirk

    Beryllium Material Tests HiRadMat windows and NOA fins C. Densham, A. Atherton, T. Davenne, P (FNAL) S. Roberts, V. Kuksenko (Oxford University) Motivation Beryllium is currently widely used, it is essential to understand the response and potential limits of beryllium in such extreme environments

  13. Testing quantum electrodynamics in the lowest singlet states of beryllium atom Mariusz Puchalski and Jacek Komasa

    E-Print Network [OSTI]

    Pachucki, Krzysztof

    Testing quantum electrodynamics in the lowest singlet states of beryllium atom Mariusz Puchalski of the beryllium atom. Calcu- lations are performed using fully correlated Gaussian basis sets and taking predictions for the ionization potential of the beryllium ground state 75 192.696(8) cm-1 and the 21 P 21

  14. Preliminary Investigation into the Corrosion of Beryllium Exposed to Celotex and Water

    E-Print Network [OSTI]

    Preliminary Investigation into the Corrosion of Beryllium Exposed to Celotex and Water R. Scott , it was uncertain in the LLNL work if accelerate corrosion would result when beryllium was exposed to Celotex the corrosion rate of beryllium. While preliminary, these results indicate that storage conditions which may

  15. LA CONDUCTIVIT LECTRIQUE DES COUCHES MICROCRISTALLINES DES MTAUX A CONDUCTION MIXTE (BERYLLIUM ET PLOMB)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    (BERYLLIUM ET PLOMB) Par R. GRIGOROVICI, A. DÉVÉNYI, T. BOTILÅ, C. RUSU et A. VANCU, Institut de Physique de continuous beryllium and lead films deposited by vacuum evaporation have a negative temperature coefficient connue. Le beryllium nous a semblé le métal le plus indiqué pour ce dessein, car il satisfait aux

  16. Beryllium7 in soils and vegetation along an arid precipitation gradient in Owens Valley, California

    E-Print Network [OSTI]

    Elmore, Andrew J.

    Beryllium7 in soils and vegetation along an arid precipitation gradient in Owens Valley, California; revised 29 March 2011; accepted 1 April 2011; published 7 May 2011. [1] Beryllium7 is a potentially potential as a sediment tracer in desert environments. Beryllium7 in vegetation and the upper few cm of soil

  17. Ab initio treatment of electron correlations in polymers: Lithium hydride chain and beryllium hydride polymer

    E-Print Network [OSTI]

    Birkenheuer, Uwe

    Ab initio treatment of electron correlations in polymers: Lithium hydride chain and berylliumH and beryllium hydride Be2H4 . First, employing a Wannier-function-based approach, the systems are studiedH and the beryllium hydride polymer Be2H4 . As a simple, but due to its ionic character, non- trivial model polymer

  18. Hanford Site Beryllium Program: Past, Present, and Future - 12428

    SciTech Connect (OSTI)

    Fisher, Mark [CH2M Hill Plateau Remediation Company, Richland, Washington 99354 (United States); Garcia, Pete [U.S. Department of Energy - Richland Office, Richland, Washington 99352 (United States); Goeckner, Julie [U.S. Department of Energy - HQ, EMCBC, Cincinnati, Ohio 45202 (United States); Millikin, Emily [Washington Closure Hanford, Richland, Washington 99354 (United States); Stoner, Mike [Mission Support Alliance, Richland, Washington 99354 (United States)

    2012-07-01

    The U.S. Department of Energy (DOE) has a long history of beryllium use because of the element's broad application to many nuclear operations and processes. At the Hanford Site beryllium alloy was used to fabricate parts for reactors, including fuel rods for the N-Reactor during plutonium production. Because of continued confirmed cases of chronic beryllium disease (CBD), and data suggesting CBD occurs at exposures to low-level concentrations, the DOE decided to issue a rule to further protect federal and contractor workers from hazards associated with exposure to beryllium. When the beryllium rule was issued in 1999, each of the Hanford Site contractors developed a Chronic Beryllium Disease Prevention Program (CBDPP) and initial site wide beryllium inventories. A new site-wide CBDPP, applicable to all Hanford contractors, was issued in May, 2009. In the spring of 2010 the DOE Headquarters Office of Health, Safety, and Security (HSS) conducted an independent inspection to evaluate the status of implementation of the Hanford Site Chronic Beryllium Disease Prevention Program (CBDPP). The report identified four Findings and 12 cross-cutting Opportunities for Improvement (OFIs). A corrective action plan (CAP) was developed to address the Findings and crosscutting OFIs. The DOE directed affected site contractors to identify dedicated resources to participate in development of the CAP, along with involving stakeholders. The CAP included general and contractor-specific recommendations. Following initiation of actions to implement the approved CAP, it became apparent that additional definition of product deliverables was necessary to assure that expectations were adequately addressed and CAP actions could be closed. Consequently, a supplement to the original CAP was prepared and transmitted to DOE-HQ for approval. Development of the supplemental CAP was an eight month effort. From the onset a core group of CAP development members were identified to develop a mechanism for assuring that consensus was achieved on products developed as part of the CAP and the closure process. The original CAP was developed based on a large number of actions developed from the HSS report. This was essentially a 'bottoms up' approach. The revised CAP development team concluded that a more holistic, process-based approach was appropriate to assure that the resulting deliverable resulted in a best-in-class product. Consequently, issues and recommendations contained in the HSS report were grouped into 11 program areas, specific product deliverables were identified within each of the program areas, and a work breakdown structure (WBS) was logically applied to number the groupings. While the revised approach to product development utilizes a more holistic, 'top down' approach, the intent was still to incorporate specific recommendations and address specific issues contained in the HSS report. Through implementation of this new approach, a collaborative team has been established that works together using a consensus process for ensuring product completion. Benefits of the new approach include building a level of trust amongst all parties, quality of the products have improved, and acceptance by all parties of what action will truly meet the intent of the deficiency and make the beryllium program stronger. Open dialogue occurs amongst the core Be CAP team members, Hanford contractors, and DOE. It has been a learning process and will continue to be one, but everyone shares the common goal of reducing worker exposure to beryllium. (authors)

  19. Report of a technical evaluation panel on the use of beryllium for ITER plasma facing material and blanket breeder material

    SciTech Connect (OSTI)

    Ulrickson, M.A.; Manly, W.D.; Dombrowski, D.E.

    1995-08-01

    Beryllium because of its low atomic number and high thermal conductivity, is a candidate for both ITER first wall and divertor surfaces. This study addresses the following: why beryllium; design requirements for the ITER divertor; beryllium supply and unirradiated physical/mechanical property database; effects of irradiation on beryllium properties; tritium issues; beryllium health and safety; beryllium-coolant interactions and safety; thermal and mechanical tests; plasma erosion of beryllium; recommended beryllium grades for ITER plasma facing components; proposed manufacturing methods to produce beryllium parts for ITER; emerging beryllium materials; proposed inspection and maintenance techniques for beryllium components and coatings; time table and costs; and the importance of integrating materials and manufacturing personnel with designers.

  20. The effect of processing parameters on plasma sprayed beryllium for fusion applications

    SciTech Connect (OSTI)

    Castro, R.G.; Stanek, P.W.; Jacobson, L.A.; Cowgill, D.F.; Snead, L.L.

    1993-10-01

    Plasma spraying is being investigated as a potential coating technique for applying thin (0.1--5mm) layers of beryllium on plasma facing surfaces of blanket modules in ITER and also as an in-situ repair technique for repairing eroded beryllium surfaces in high heat flux divertor regions. High density spray deposits (>98% of theoretical density) of beryllium will be required in order to maximize the thermal conductivity of the beryllium coatings. A preliminary investigation was done to determine the effect of various processing parameters (particle size, particle morphology, secondary gas additions and reduced chamber pressure) on the as-deposited density of beryllium. The deposits were made using spherical beryllium feedstock powder which was produced by centrifugal atomization at Los Alamos National Laboratory (LANL). Improvements in the as-deposited densities and deposit efficiencies of the beryllium spray deposits will be discussed along with the corresponding thermal conductivity and outgassing behavior of these deposits.

  1. Elastic scattering of Beryllium isotopes near the Coulomb barrier

    SciTech Connect (OSTI)

    Di Pietro, A.; Figuera, P. [INFN-Laboratori Nazionali del Sud, Catania (Italy); Amorini, F.; Fisichella, M.; Lattuada, M.; Musumarra, A.; Pellegriti, M. G.; Randisi, G.; Rizzo, F.; Santonocito, D.; Scalia, G.; Scuderi, V.; Strano, E.; Torresi, D. [Dipartimento di Fisica ed Astronomia Universita di Catania, Catania (Italy); INFN-Laboratori Nazionali del Sud, Catania (Italy); Papa, M. [INFN-Sezione di Catania, Catania (Italy); Acosta, L.; Martel, I.; Perez-Bernal, F. [Departamento de Fisica Aplicada Universidad de Huelva, Huelva (Spain); Borge, M. J. G.; Tengblad, O. [Instituto de Estructura de la Materia CSIC, Madrid (Spain)

    2011-10-28

    In this contribution, results of experiments performed with the three Beryllium isotopes {sup 9,10,11}Be on a medium mass {sup 64}Zn target, at a center of mass energy of {approx_equal}1.4 the Coulomb barrier, will be discussed. Elastic scattering angular distributions have been measured for the {sup 9,10}Be reactions. In the {sup 11}Be case the quasielastic scattering angular distribution was obtained. In the halo nucleus case, the angular distribution exhibit a non-Fresnel-type pattern with a strong damping of the Coulomb-nuclear interference peak. Moreover, it is found that the total reaction cross-section for the halo nucleus induced collision is more than double the ones extracted in the collisions induced by the non-halo Beryllium isotopes. A large contribution to the total-reaction cross-section in the {sup 11}Be case could be attributed to transfer and/or break-up events.

  2. Impact of HFIR LEU Conversion on Beryllium Reflector Degradation Factors

    SciTech Connect (OSTI)

    Ilas, Dan

    2013-10-01

    An assessment of the impact of low enriched uranium (LEU) conversion on the factors that may cause the degradation of the beryllium reflector is performed for the High Flux Isotope Reactor (HFIR). The computational methods, models, and tools, comparisons with previous work, along with the results obtained are documented and discussed in this report. The report documents the results for the gas and neutronic poison production, and the heating in the beryllium reflector for both the highly enriched uranium (HEU) and LEU HFIR configurations, and discusses the impact that the conversion to LEU may have on these quantities. A time-averaging procedure was developed to calculate the isotopic (gas and poisons) production in reflector. The sensitivity of this approach to different approximations is gauged and documented. The results show that the gas is produced in the beryllium reflector at a total rate of 0.304 g/cycle for the HEU configuration; this rate increases by ~12% for the LEU case. The total tritium production rate in reflector is 0.098 g/cycle for the HEU core and approximately 11% higher for the LEU core. A significant increase (up to ~25%) in the neutronic poisons production in the reflector during the operation cycles is observed for the LEU core, compared to the HEU case, for regions close to the core s horizontal midplane. The poisoning level of the reflector may increase by more than two orders of magnitude during long periods of downtime. The heating rate in the reflector is estimated to be approximately 20% lower for the LEU core than for the HEU core. The decrease is due to a significantly lower contribution of the heating produced by the gamma radiation for the LEU core. Both the isotopic (gas and neutronic poisons) production and the heating rates are spatially non-uniform throughout the beryllium reflector volume. The maximum values typically occur in the removable reflector and close to the midplane.

  3. Beryllium, Lithium and Oxygen Abundances in F-type Stars

    E-Print Network [OSTI]

    R. J. Garcia Lopez; M. C. Dominguez Herrera; M. R. Perez de Taoro; C. Casares; J. L. Rasilla; R. Rebolo; C. Allende Prieto

    1997-10-07

    Beryllium and oxygen abundances have been derived in a sample of F-type field stars for which lithium abundances had been measured previously, with the aim of obtaining observational constraints to discriminate between the different mixing mechanisms proposed. Mixing associated with the transport of angular momentum in the stellar interior and internal gravity waves within the framework of rotating evolutionary models, appear to be promising ways to explain the observations.

  4. Beryllium Screening - Informed Choice Document | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram:Y-12Power, Inc |BartlesvilleRestoring Electrical Service: aBeryllium

  5. Shockless compression and release behavior of beryllium to 110?GPa

    SciTech Connect (OSTI)

    Brown, J. L.; Knudson, M. D.; Alexander, C. S.; Asay, J. R. [Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)

    2014-07-21

    A magnetohydrodynamic loading technique was used to shocklessly compress beryllium to peak longitudinal stresses of 19–110?GPa and, subsequently, unload in order to determine both the compressive response and also the shear stress supported upon release. Loading strain rates were on the order of 10{sup 6?}s{sup ?1}, while the unloading rates were nearly constant at 3?×?10{sup 5?}s{sup ?1}. Velocimetry was used to monitor the ramp and release behavior of a beryllium/lithium fluoride window interface. After applying window corrections to infer in situ beryllium velocities, a Lagrangian analysis was employed to determine the material response. The Lagrangian wavespeed-particle velocity response is integrated to generate the stress-strain path, average change in shear stress over the elastic unloading, and estimates of the shear modulus at peak compression. These data are used to infer the pressure dependence of the flow strength at the unloading rate. Comparisons to several strength models reveal good agreement to 45?GPa, but the data indicate 20%–30% higher strength near 100?GPa.

  6. PETITION FORM ENERGY AND RESOURCES GROUP Submit to: Carina Galicia

    E-Print Network [OSTI]

    Kammen, Daniel M.

    PETITION FORM ENERGY AND RESOURCES GROUP Submit to: Carina Galicia College Advisor 260 Mulford Tel: (510) 642-1750 University of California ­ Berkeley Fax: (510) 642-1085 MINOR IN ENERGY AND RESOURCES PETITION FOR CONFIRMATION Submit this form to the Student Affairs Officer in the Energy and Resources Group

  7. Latest research findings from petite sismique trials

    SciTech Connect (OSTI)

    Belesky, R.M.; Bieniawski, Z.T.; Greenfield, R.J.

    1984-01-01

    Research on a novel in-situ technique known as petite sismique is discussed. This geophysical method is capable of estimating the static deformation modules of a rock mass. The petite-sismique technique utilizes a seismic-refraction survey stressing a correlation between shear-wave frequency and the static deformation modulus. Although the technique was introduced in 1967, petite sismique has not been used extensively due to difficulties in shear-wave generation and detection. Recent developments in geophysical instrumentation provided an opportunity to evaluate better the technique in this study. With the objective of assessing the deformation modulus, field trials were conducted in coal and limestone mines. Despite attempts to develop a reliable shear-wave source, difficulties in frequency determinations persisted due to source characteristics and receiver resonance. A limited number of shear-wave-frequency observations did not confirm the originally documented relationship between shear-wave frequency and the static deformation modulus. The indicated discrepancy is attributed to differences in characteristics of the sources used in the two studies. Arising out of this research are equipment modifications and procedural recommendations which should improve the chances for success in future studies.

  8. A preliminary assessment of beryllium dust oxidation during a wet bypass accident in a fusion reactor

    SciTech Connect (OSTI)

    Brad J. Merrill; Richard L. Moore; J. Phillip Sharp

    2008-09-01

    A beryllium dust oxidation model has been developed at the Idaho National Laboratory (INL) by the Fusion Safety Program (FSP) for the MELCOR safety computer code. The purpose of this model is to investigate hydrogen production from beryllium dust layers on hot surfaces inside a fusion reactor vacuum vessel (VV) during in-vessel loss-of-cooling accidents (LOCAs). This beryllium dust oxidation model accounts for the diffusion of steam into a beryllium dust layer, the oxidation of the dust particles inside this layer based on the beryllium-steam oxidation equations developed at the INL, and the effective thermal conductivity of this beryllium dust layer. This paper details this oxidation model and presents the results of the application of this model to a wet bypass accident scenario in the ITER device.

  9. ORISE: ORAU-managed beryllium lab marks outstanding year in 2013

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    higher risk of developing Chronic Beryllium Disease, a chronic disease that scars the lungs making it more difficult for oxygen to transfer into the bloodstream. The test...

  10. The beryllium quandary: will the lower exposure limits spur new developments in sampling and analysis?

    SciTech Connect (OSTI)

    Brisson, Michael

    2013-06-03

    At the time this article was written, new rulemakings were under consideration at OSHA and the U.S. Department of Energy (DOE) that would propose changes to occupational exposure limits for beryllium. Given these developments, it’s a good time to review the tools and methods available to IHs for assessing beryllium air and surface contamination in the workplace—what’s new and different, and what’s tried and true. The article discusses limit values and action levels for beryllium, problematic aspects of beryllium air sampling, sample preparation, sample analysis, and data evaluation.

  11. Use of notched beams to establish fracture criteria for beryllium

    SciTech Connect (OSTI)

    Mayville, R.A.

    1980-01-04

    The fracture of an improved form of pure beryllium was studied under triaxial tensile stresses. This state of stress was produced by testing notched beams, which were thick enough to be in a state of plane strain at the center. A plane strain, elastic-incremental plasticity finite element program was then used to determine the stress and strain distributions at fracture. A four-point bend fixture was used to load the specimens. It was carefully designed and manufactured to eliminate virtually all of the shear stresses at the reduced section of the notched beams. The unixial properties were obtained.

  12. Double K-shell photoionization of atomic beryllium

    SciTech Connect (OSTI)

    Yip, F. L. [Departamento de Quimica, Modulo 13, Universidad Autonoma de Madrid, E-28049 Madrid (Spain); Martin, F. [Departamento de Quimica, Modulo 13, Universidad Autonoma de Madrid, E-28049 Madrid (Spain); Instituto Madrilen (tilde sign)o de Estudios Avanzados en Nanociencia, Cantoblanco, E-28049 Madrid (Spain); McCurdy, C. W. [Department of Chemistry, University of California, Davis, California 95616 (United States); Lawrence Berkeley National Laboratory, Chemical Sciences, and Ultrafast X-ray Science Laboratory, Berkeley, California 94720 (United States); Rescigno, T. N. [Lawrence Berkeley National Laboratory, Chemical Sciences, and Ultrafast X-ray Science Laboratory, Berkeley, California 94720 (United States)

    2011-11-15

    Double photoionization of the core 1s electrons in atomic beryllium is theoretically studied using a hybrid approach that combines orbital and grid-based representations of the Hamiltonian. The {sup 1} S ground state and {sup 1} P final state contain a double occupancy of the 2s valence shell in all configurations used to represent the correlated wave function. Triply differential cross sections are evaluated, with particular attention focused on a comparison of the effects of scattering the ejected electrons through the spherically symmetric valence shell with similar cross sections for helium, representing a purely two-electron target with an analogous initial-state configuration.

  13. SIMULTANEOUS VISAR AND TXD MEASUREMENTS ON SHOCKS IN BERYLLIUM CRYSTALS

    SciTech Connect (OSTI)

    Swift, D. C.; Paisley, Dennis L.; Kyrala, George A.; Hauer, Allan

    2001-01-01

    Shock waves were induced in single crystals of beryllium, by direct illumination using the TRIDENT laser at Los Alamos. The velocity history at the surface was measured using a line-imaging VISAR, and transient X-ray diffraction (TXD) records were obtained with a plasma backlighter and X-ray streak camera. At lower pressures, the VISAR records exhibited an elastic precursor followed by a plastic wave and spall. At higher pressure, the velocity records showed a two-wave structure suggesting a phase change, then at the highest pressure a single broad wave suggesting a shock directly into the high pressure phase. The rocking curves of the crystals were typically about 2 degrees wide, so analysis of the TXD records is complicated by the relatively large amount of blurring. However the Bragg record of the shocked 0002 peak clearly indicates a smaller lattice parameter at higher pressure. In the shots where polymorphism seemed to appear in the VISAR record, additional lines appeared in the bragg record, and new lines also appeared within the field of view of the Laue camera. These results are consistent with a new quantum mechanical equation of state for beryllium, which suggests that the hexagonal to body-centered cubic transition occurs at {approx}40 GPa on the principal Hugoniot.

  14. Beryllium anomalies in solar-type field stars

    E-Print Network [OSTI]

    N. C. Santos; G. Israelian; S. Randich; R. J. Garcia Lopez; R. Rebolo

    2004-08-05

    We present a study of beryllium (Be) abundances in a large sample of field solar-type dwarfs and sub-giants spanning a large range of effective temperatures. The analysis shows that Be is severely depleted for F stars, as expected by the light-element depletion models. However, we also show that Beryllium abundances decrease with decreasing temperature for stars cooler than $\\sim$6000 K, a result that cannot be explained by current theoretical models including rotational mixing, but that is, at least in part, expected from the models that take into account internal wave physics. In particular, the light element abundances of the coolest and youngest stars in our sample suggest that Be, as well as lithium (Li), has already been burned early during their evolution. Furthermore, we find strong evidence for the existence of a Be-gap for solar-temperature stars. The analysis of Li and Be abundances in the sub-giants of our sample also shows the presence of one case that has still detectable amounts of Li, while Be is severely depleted. Finally, we compare the derived Be abundances with Li abundances derived using the same set of stellar parameters. This gives us the possibility to explore the temperatures for which the onset of Li and Be depletion occurs.

  15. Calculation of two-centre two-electron integrals over Slater-type orbitals revisited. III. Case study of the beryllium dimer

    E-Print Network [OSTI]

    Micha? Lesiuk; Micha? Przybytek; Monika Musia?; Bogumi? Jeziorski; Robert Moszynski

    2015-01-20

    In this paper we present results of ab-initio calculations for the beryllium dimer with basis set of Slater-type orbitals (STOs). Nonrelativistic interaction energy of the system is determined using the frozen-core full configuration interaction calculations combined with high-level coupled cluster correction for inner-shell effects. Newly developed STOs basis sets, ranging in quality from double to sextuple zeta, are used in these computations. Principles of their construction are discussed and several atomic benchmarks are presented. Relativistic effects of order ${\\alpha}^2$ are calculated perturbatively by using the Breit-Pauli Hamiltonian and are found to be significant. We also estimate the leading-order QED effects. Influence of the adiabatic correction is found to be negligible. Finally, the interaction energy of the beryllium dimer is determined to be 929.0$\\,\\pm\\,$1.9 $cm^{-1}$, in a very good agreement with the recent experimental value. The results presented here appear to be the most accurate ab-initio calculations for the beryllium dimer available in the literature up to date and probably also one of the most accurate calculations for molecular systems containing more than four electrons.

  16. DOE Petitions for NRC Review in Yucca Mountain Proceeding

    Broader source: Energy.gov [DOE]

    The United States Department of Energy today filed with the Nuclear Regulatory Commission a petition requesting that the Commission review and reverse an order by the NRC’s Atomic Safety and...

  17. EXPERIMENTAL INVESTIGATION AND ANALYSIS OF THE EFFECTIVE THERMAL PROPERTIES OF BERYLLIUM PACKED BEDS

    E-Print Network [OSTI]

    Abdou, Mohamed

    , proposed by the European Community for a Demonstration Reactor (DEMO), is based on using ceramic breeder as a material form for the blanket of ITER (International Thermonuclear Experimental Reactor). Beryllium is usedEXPERIMENTAL INVESTIGATION AND ANALYSIS OF THE EFFECTIVE THERMAL PROPERTIES OF BERYLLIUM PACKED

  18. Summary of beryllium electrorefining technology developed by KBI Division of Cabot Berylco Inc

    SciTech Connect (OSTI)

    Pistole, C.O.

    1983-05-27

    Proprietary beryllium electrorefining technology has been purchased from the KBI Division of Cabot Berylco Inc. by Rockwell International, Rocky Flats Plant, as part of a DOE beryllium option study. This technology has been reviewed and is summarized. 12 figures, 7 tables.

  19. Distribution of Hydrogen Isotopes, Carbon and Beryllium on In-Vessel Surfaces in the Various JET Divertors

    E-Print Network [OSTI]

    Distribution of Hydrogen Isotopes, Carbon and Beryllium on In-Vessel Surfaces in the Various JET Divertors

  20. Deuterium Retention in Beryllium Exposed to a 60kV Deuterium Beam ­ Consequences for Next Step Devices

    E-Print Network [OSTI]

    Deuterium Retention in Beryllium Exposed to a 60kV Deuterium Beam ­ Consequences for Next Step Devices

  1. Modification of the Carbon and Beryllium Walls in JET by Erosion, Redeposition and Deuterium Trapping after the 1991 Discharge Period

    E-Print Network [OSTI]

    Modification of the Carbon and Beryllium Walls in JET by Erosion, Redeposition and Deuterium Trapping after the 1991 Discharge Period

  2. High Heat Flux Exposure Tests on 10mm Beryllium Tiles Brazed on Actively Cooled Vapotron made from CUCRZR

    E-Print Network [OSTI]

    High Heat Flux Exposure Tests on 10mm Beryllium Tiles Brazed on Actively Cooled Vapotron made from CUCRZR

  3. Study of interdomain boundary in diamagnetic domain structure in beryllium

    E-Print Network [OSTI]

    Philip Lykov

    2002-11-21

    At low temperatures, in strong magnetic fields, the formation of a non-uniform magnetisation is possible in a single-crystal metal sample whose demagnetising factor along the field is close to unity. Namely, so-called Condon diamagnetic domain structure arises and disappears periodically with magnetic field. In this paper, the diamagnetic domain structure in beryllium single crystalis analysed. Directly, existence of diamagnetic domains in that sample was observed earlier by the muon spin precession (mSR) resonance peak splitting. A method is described that allows to calculate quantitative characteristics of the interdomain boundary using the muon histograms. The technique is based on the Marquardt minimisation procedure that has been modified in order to reduce the influence of noise on iterations convergence. Boundary volume fraction was calculated.

  4. Optical properties and structure of beryllium lead silicate glasses

    SciTech Connect (OSTI)

    Zhidkov, I. S., E-mail: i.s.zhidkov@urfu.ru [Ural Federal University, Mira Str. 19, Yekaterinburg, 620002, Russia and Institute of Metal Physics, Russian Academy of Sciences-Ural Division, S. Kovalevskoi Str. 18, 620990 Yekaterinburg (Russian Federation); Zatsepin, A. F.; Cholakh, S. O.; Kuznetsova, Yu. A. [Ural Federal University, Mira Str. 19, Yekaterinburg, 620002 (Russian Federation)

    2014-10-21

    Luminescence and optical properties and structural features of (BeO){sub x}(PbO?SiO{sub 2}){sub 1?x} glasses (x = 0 ÷ 0.3) are investigated by means of optical absorption and photoluminescence spectroscopy and X-ray diffraction. The regularities of the formation of the optical absorption edge and static disorder are studied. It is shown that the optical absorption and luminescence are determined by transitions between localized states of lead ions. The impact of beryllium oxide on optical and luminescence properties and electronic structure of bands tails is discussed. The presence of two different concentration ranges with various short-range order structure and band tails nature has been established.

  5. Synthesis of the Beryllium 3131A Spectral Region

    E-Print Network [OSTI]

    Johanna F. Ashwell; R. D. Jeffries; B. Smalley

    2005-09-19

    The Beryllium spectral region of the Sun, Procyon and 4 stars in the open cluster NGC6633 up to Teff = 7500K have been synthesised using ATLAS9 model atmospheres and the MOOG spectral synthesis program. The line list used for these syntheses has been modified from the ATLAS9 line list to improve the quality of the fits in light of the improved opacities in the new version of the MOOG code. Significant changes have been made to the Mn I line at ATLAS9 wavelength 3131.037A and an OH line has been added at 3131.358A. In addition there are a number of minor changes to gf-values throughout the synthesised region thus improving the fit for the spectra across the temperature range considerably.

  6. Lithium-Beryllium-Boron and Oxygen in the early Galaxy

    E-Print Network [OSTI]

    Elisabeth Vangioni-Flam; Michel Casse

    2000-11-24

    Oxygen is a much better evolutionary index than iron to follow the history of Lithium-Beryllium-Boron (LiBeB) since it is the main producer of these light elements at least in the early Galaxy. The O-Fe relation is crucial to the determination of the exact physical process responsible for the LiBeB production. Calculated nucleosynthetic yields of massive stars, estimates of the energy cost of Be production, and above all recent observations reported in this meeting seem to favor a mechanism in which fast nuclei enriched into He, C and O arising from supernovae are accelerated in superbubbles and fragment on H and He in the interstellar medium.

  7. SOURCE AND PATHWAY DETERMINATION FOR BERYLLIUM FOUND IN BECHTEL NEVADA NORTH LAS VEGAS FACILITIES

    SciTech Connect (OSTI)

    BECHTEL NEVADA

    2004-07-01

    In response to the report ''Investigation of Beryllium Exposure Cases Discovered at the North Las Vegas Facility of the National Nuclear Security Administration'', published by the U.S. Department of Energy (DOE), National Nuclear Security Administration (NNSA) in August 2003, Bechtel Nevada (BN) President and General Manager Dr. F. A. Tarantino appointed the Beryllium Investigation & Assessment Team (BIAT) to identify both the source and pathway for the beryllium found in the North Las Vegas (NLV) B-Complex. From September 8 to December 18, 2003, the BIAT investigated the pathway for beryllium and determined that a number of locations existed at the Nevada Test Site (NTS) which could have contained sufficient quantities of beryllium to result in contamination if transported. Operations performed in the B-1 Building as a result of characterization activities at the Engine Maintenance, Assembly, and Disassembly (EMAD); Reactor Maintenance, Assembly, and Disassembly (RMAD); Test Cells A and C; and the Central Support Facility in Area 25 had the greatest opportunity for transport of beryllium. Investigative monitoring and sampling was performed at these sites with subsequent transport of sample materials, equipment, and personnel from the NTS to the B-1 Building. The timeline established by the BIAT for potential transport of the beryllium contamination into the B-1 Building was from September 1997 through November 2002. Based on results of recently completed swipe sampling, no evidence of transport of beryllium from test areas has been confirmed. Results less than the DOE beryllium action level of 0.2 ???g/100 cm2 were noted for work support facilities located in Area 25. All of the identified sites in Area 25 worked within the B-1 tenant's residency timeline have been remediated. Legacy contaminants have either been disposed of or capped with clean borrow material. As such, no current opportunity exists for release or spread of beryllium contamination. Historical records indicate that there are locations at the NTS which contain hazardous quantities of beryllium; however, because beryllium was not always considered a contaminant of concern, complete characterization was not performed prior to remediation efforts. Today, it is not practical to characterize Area 25 for beryllium due to the successful remediation. Analysis of sample data collected in B-1 for the BIAT was performed for the purpose of confirming past results and identifying a source of beryllium through the use of markers. The results confirmed the presence of man-made beryllium contamination in the B-1 High Bay at levels consistent with the NNSA Report. No source markers were found that would be associated with NTS historical nuclear rocket or weapons-related operations. Beryllium contamination was identified in the southwest area of the B-1 High Bay in characteristic association with materials handled during historic metal-working operations. Use of source marker analysis suggests a contributor of beryllium found in carpeted areas of the B-Complex may be naturally occurring. Naturally occurring beryllium is not regulated by Title 10 Code of Federal Regulations Part 850 (10 CFR 850) (see Appendix A). No current uncontrolled beryllium source or transport pathways have been identified as available for spread of contamination to uncontrolled areas from the NTS.

  8. AN INTERSTELLAR ORIGIN FOR THE BERYLLIUM 10 IN CALCIUM-RICH, ALUMINUM-RICH INCLUSIONS S. J. Desch1

    E-Print Network [OSTI]

    Connolly Jr, Harold C.

    AN INTERSTELLAR ORIGIN FOR THE BERYLLIUM 10 IN CALCIUM-RICH, ALUMINUM-RICH INCLUSIONS S. J. Desch1 October 15 ABSTRACT Beryllium 10 is a short-lived radionuclide (t1=2 ¼ 1:5 Myr) that was incorporated live into calcium-rich, aluminum-rich inclusions (CAIs) at the birth of our solar system. Beryllium 10 is unique

  9. BIOAVAILABILITY OF BERYLLIUM OXIDE PARTICLES: AN IN VITRO STUDY IN THE MURINE J774A.1 MACROPHAGE CELL LINE MODEL

    E-Print Network [OSTI]

    Illinois at Chicago, University of

    BIOAVAILABILITY OF BERYLLIUM OXIDE PARTICLES: AN IN VITRO STUDY IN THE MURINE J774A.1 MACROPHAGE/04/10 Forpersonaluseonly. #12;Ronald C. Scripsick & Los Alamos National Laboratory, Los Alamos, New Mexico, USA & Beryllium is assessed through measurement of beryllium aerosol mass con- centration. Compliance with the current mass

  10. First-principles studies of beryllium doping of GaN Chris G. Van de Walle* and Sukit Limpijumnong

    E-Print Network [OSTI]

    First-principles studies of beryllium doping of GaN Chris G. Van de Walle* and Sukit Limpijumnong Received 12 October 2000; published 8 June 2001 The structural and electronic properties of beryllium acceptors, and between hydrogen and substitutional beryllium. The results for wurtzite GaN are compared

  11. Simulating the FTICR-MS Signal of a Decaying Beryllium-7 Ion Plasma in a 2D Electrostatic PIC Code

    E-Print Network [OSTI]

    Hart, Gus

    Simulating the FTICR-MS Signal of a Decaying Beryllium-7 Ion Plasma in a 2D Electrostatic PIC Code the FTICR-MS Signal of a Decaying Beryllium-7 Ion Plasma in a 2D Electrostatic PIC Code Michael Takeshi Nakata Department of Physics and Astronomy Doctor of Philosophy Beryllium-7 (Be-7) only decays

  12. Beryllium in turnoff stars of NGC6397: early Galaxy spallation, cosmochronology and cluster formation

    E-Print Network [OSTI]

    L. Pasquini; P. Bonifacio; S. Randich; D. Galli; R. G. Gratton

    2004-07-26

    We present the first detection of beryllium in two turnoff stars of the old, metal-poor globular cluster NGC 6397. The beryllium lines are clearly detected and we determine a mean beryllium abundance of log(Be/H)=-12.35 +/- 0.2. The beryllium abundance is very similar to that of field stars of similar Fe content. We interpret the beryllium abundance observed as the result of primary spallation of cosmic rays acting on a Galactic scale, showing that beryllium can be used as a powerful cosmochronometer for the first stellar generations. With this method, we estimate that the cluster formed 0.2-0.3 Gyr after the onset of star formation in the Galaxy, in excellent agreement with the age derived from main sequence fitting. From the same spectra we also find low O (noticeably different for the two stars) and high N abundances, suggesting that the original gas was enriched in CNO processed material. Our beryllium results, together with the N, O, and Li abundances, provide insights on the formation of this globular cluster, showing that any CNO processing of the gas must have occurred in the protocluster cloud before the formation of the stars we observe now. We encounter, however, difficulties in giving a fully consistent picture of the cluster formation, able to explain the complex overall abundance pattern.

  13. New and Emerging Technologies for Real-Time Air and Surface Beryllium Monitoring

    SciTech Connect (OSTI)

    Phifer, B.E. Jr.; Churnetski, E.L.; Cooke, L.E.; Reed, J.J.; Howell, M.L.; Smith, V.D.

    2001-09-01

    In this study, five emerging technologies were identified for real-time monitoring of airborne beryllium: Microwave-Induced Plasma Spectroscopy (MIPS), Aerosol Beam-Focused Laser-Induced Plasma Spectroscopy (ABFLIPS), Laser-Induced Breakdown Spectroscopy (LIBS), Surfaced-Enhanced Raman Scattering (SERS) Spectroscopy, and Micro-Calorimetric Spectroscopy (CalSpec). Desired features of real-time air beryllium monitoring instrumentation were developed from the Y-12 CBDPP. These features were used as guidelines for the identification of potential technologies as well as their unique demonstrated capability to provide real-time monitoring of similar materials. However, best available technologies were considered, regardless of their ability to comply with the desired features. None of the five technologies have the capability to measure the particle size of airborne beryllium. Although reducing the total concentration of airborne beryllium is important, current literature suggests that reducing or eliminating the concentration of respirable beryllium is critical for worker health protection. Eight emerging technologies were identified for surface monitoring of beryllium. CalSpec, MIPS, SERS, LIBS, Laser Ablation, Absorptive Stripping Voltametry (ASV), Modified Inductively Coupled Plasma (ICP) Spectroscopy, and Gamma BeAST. Desired features of real-time surface beryllium monitoring were developed from the Y-12 CBDPP. These features were used as guidelines for the identification of potential technologies. However, the best available technologies were considered regardless of their ability to comply with the desired features.

  14. Comparison of beryllium oxide and pyrolytic graphite crucibles for boron doped silicon epitaxy

    SciTech Connect (OSTI)

    Ali, Dyan; Richardson, Christopher J. K. [Laboratory for Physical Sciences, University of Maryland, College Park, Maryland 20740 (United States)

    2012-11-15

    This article reports on the comparison of beryllium oxide and pyrolytic graphite as crucible liners in a high-temperature effusion cell used for boron doping in silicon grown by molecular beam epitaxy. Secondary ion mass spectroscopy analysis indicates decomposition of the beryllium oxide liner, leading to significant incorporation of beryllium and oxygen in the grown films. The resulting films are of poor crystal quality with rough surfaces and broad x-ray diffraction peaks. Alternatively, the use of pyrolytic graphite crucible liners results in higher quality films.

  15. Retrospective beryllium exposure assessment at the Rocky Flats Environmental Technology site

    SciTech Connect (OSTI)

    Barnard, A.E.; Torma-Krajewski, J.; Viet, S.M.

    1997-05-01

    Since the 1960`s, beryllium machining was performed to make nuclear weapon components at the Department of Energy (DOE) Rocky Flats Plant. Beryllium exposure was assessed via fixed airhead (FAH) sampling in which the filter cassette was affixed to the machine, generally within a few feet of the worker`s breathing zone. Approximately 500,000 FAH samples were collected for beryllium over three decades. From 1984 to 1987, personal breathing zone (PBZ) samples were also collected as part of the evaluation of a new high velocity/low volume local exhaust ventilation (HV/LV LEV) system. The purpose of this study was to determine how the two types of sampling data could be used for an exposure assessment in the beryllium shop.

  16. Design of the beryllium window for Brookhaven Linac Isotope Producer

    SciTech Connect (OSTI)

    Nayak, S.; Mapes, M.; Raparia, D.

    2015-11-01

    In the Brookhaven Linac Isotope Producer (BLIP) beam line, there were two Beryllium (Be) windows with an air gap to separate the high vacuum upstream side from low vacuum downstream side. There had been frequent window failures in the past which affected the machine productivity and increased the radiation dose received by worker due to unplanned maintenance. To improve the window life, design of Be window is reexamined. Detailed structural and thermal simulations are carried out on Be window for different design parameters and loading conditions to come up with better design to improve the window life. The new design removed the air gap and connect the both beam lines with a Be window in-between. The new design has multiple advantages such as 1) reduces the beam energy loss (because of one window with no air gap), 2) reduces air activation due to nuclear radiation and 3) increased the machine reliability as there is no direct pressure load during operation. For quick replacement of this window, an aluminum bellow coupled with load binder was designed. There hasn’t been a single window failure since the new design was implemented in 2012.

  17. Are beryllium abundances anomalous in stars with giant planets?

    E-Print Network [OSTI]

    N. C. Santos; G. Israelian; R. J Garcia Lopez; M. Mayor; R. Rebolo; S. Randich; A. Ecuvillon; C. Dominguez Cerdena

    2004-08-05

    In this paper we present beryllium (Be) abundances in a large sample of 41 extra-solar planet host stars, and for 29 stars without any known planetary-mass companion, spanning a large range of effective temperatures. The Be abundances were derived through spectral synthesis done in standard Local Thermodynamic Equilibrium, using spectra obtained with various instruments. The results seem to confirm that overall, planet-host stars have ``normal'' Be abundances, although a small, but not significant, difference might be present. This result is discussed, and we show that this difference is probably not due to any stellar ``pollution'' events. In other words, our results support the idea that the high-metal content of planet-host stars has, overall, a ``primordial'' origin. However, we also find a small subset of planet-host late-F and early-G dwarfs that might have higher than average Be abundances. The reason for the offset is not clear, and might be related either to the engulfment of planetary material, to galactic chemical evolution effects, or to stellar-mass differences for stars of similar temperature.

  18. Electric properties of the Beryllium-11 system in Halo EFT

    E-Print Network [OSTI]

    H. -W. Hammer; D. R. Phillips

    2012-08-15

    We compute E1 transitions and electric radii in the Beryllium-11 nucleus using an effective field theory that exploits the separation of scales in this halo system. We fix the leading-order parameters of the EFT from measured data on the 1/2+ and 1/2- levels in Be-11 and the B(E1) strength for the transition between them. We then obtain predictions for the B(E1) strength for Coulomb dissociation of the Be-11 nucleus to the continuum. We also compute the charge radii of the 1/2+ and 1/2- states. Agreement with experiment within the expected accuracy of a leading-order computation in this EFT is obtained. We also discuss how next-to-leading-order (NLO) corrections involving both s-wave and p-wave neutron-Be-10 interactions affect our results, and display the NLO predictions for quantities which are free of additional short-distance operators at this order. Information on neutron-Be-10 scattering in the relevant channels is inferred.

  19. Spectroscopic Study on the Beryllium Abundances of Red Giant Stars

    E-Print Network [OSTI]

    Takeda, Yoichi

    2014-01-01

    An extensive spectroscopic study was carried out for the beryllium abundances of 200 red giants (mostly of late G and early K type), which were determined from the near-UV Be II 3131.066 line based on high-dispersion spectra obtained by Subaru/HDS, with an aim of investigating the nature of surface Be contents in these evolved giants; e.g., dependence upon stellar parameters, degree of peculiarity along with its origin and build-up timing. We found that Be is considerably deficient (to widely different degree from star to star) in the photosphere of these evolved giants by ~1-3 dex (or more) compared to the initial abundance. While the resulting Be abundances (A(Be)) appear to weakly depend upon T_eff, log g, [Fe/H], M, age, and v_sin i, this may be attributed to the metallicity dependence of A(Be) coupled with the mutual correlation between these stellar parameters, since such tendencies almost disappear in the metallicity-scaled Be abundance ([Be/Fe]). By comparing the Be abundances (as well as their correl...

  20. Relativistic configuration-interaction calculation of $K\\alpha$ transition energies in beryllium-like iron

    E-Print Network [OSTI]

    Yerokhin, V A; Fritzsche, S

    2014-01-01

    We perform relativistic configuration-interaction calculations of the energy levels of the low-lying and core-excited states of beryllium-like iron, Fe$^{22+}$. The results include the QED contributions calculated by two different methods, the model QED operator approach and the screening-potential approach. The uncertainties of theoretical energies are estimated systematically. The predicted wavelengths of the K\\alpha transitions in beryllium-like iron improve previous theoretical results and compare favorably with the experimental data.

  1. The Status of Beryllium Research for Fusion in the United States

    SciTech Connect (OSTI)

    Glen R. Longhurst

    2003-12-01

    Use of beryllium in fusion reactors has been considered for neutron multiplication in breeding blankets and as an oxygen getter for plasma-facing surfaces. Previous beryllium research for fusion in the United States included issues of interest to fission (swelling and changes in mechanical and thermal properties) as well as interactions with plasmas and hydrogen isotopes and methods of fabrication. When the United States formally withdrew its participation in the International Thermonuclear Experimental Reactor (ITER) program, much of this effort was terminated. The focus in the U.S. has been mainly on toxic effects of beryllium and on industrial hygiene and health-related issues. Work continued at the INEEL and elsewhere on beryllium-containing molten salts. This activity is part of the JUPITER II Agreement. Plasma spray of ITER first wall samples at Los Alamos National Laboratory has been performed under the European Fusion Development Agreement. Effects of irradiation on beryllium structure are being studied at Oak Ridge National Laboratory. Numerical and phenomenological models are being developed and applied to better understand important processes and to assist with design. Presently, studies are underway at the University of California Los Angeles to investigate thermo-mechanical characteristics of beryllium pebble beds, similar to research being carried out at Forschungszentrum Karlsruhe and elsewhere. Additional work, not funded by the fusion program, has dealt with issues of disposal, and recycling.

  2. Beryllium abundance in turn-off stars of NGC 6752

    E-Print Network [OSTI]

    Luca Pasquini; Piercarlo Bonifacio; Sofia Randich; Daniele Galli; Raffaele G. Gratton; B. Wolff

    2006-12-27

    Aims: To measure the beryllium abundance in two TO stars of the Globular Cluster NGC 6752, one oxygen rich and sodium poor, the other presumably oxygen poor and sodium rich. Be abundances in these stars are used to put on firmer grounds the hypothesis of Be as cosmochronometer and to investigate the formation of Globular Clusters. Method:We present near UV spectra with resolution R$\\sim 45000$ obtained with the UVES spectrograph on the 8.2m VLT Kueyen telescope, analysed with spectrum synthesis based on plane parallel LTE model atmospheres. Results:Be is detected in the O rich star with log(Be/H)=-12.04 $\\pm$0.15, while Be is not detected in the other star for which we obtain the upper limit log(Be/H)$<$-12.2. A large difference in nitrogen abundance (1.6 dex) is found between the two stars. Conclusions:The Be measurement is compatible with what found in field stars with the same [Fe/H] and [O/H]. The 'Be age' of the cluster is found to be 13.3 Gyrs, in excellent agreement with the results from main sequence fitting and stellar evolution. The presence of Be confirms the results previously obtained for the cluster NGC 6397 and supports the hypothesis that Be can be used as a clock for the early formation of the Galaxy. Since only an upper limit is found for the star with low oxygen abundance, we cannot decide between competing scenarios of Globular Cluster formation, but we can exclude that 'polluted' stars are substantially younger than 'unpolluted' ones. We stress that the Be test might be the only measurement capable of distinguishing between these scenarios.

  3. Summary of Surface Swipe Sampling for Beryllium on Lead Bricks and Shielding

    SciTech Connect (OSTI)

    Paik, S Y; Barron, D A

    2011-08-03

    Approximately 25,000 lbs of lead bricks at Site 300 were assessed by the Site 300 Industrial Hygienis tand Health Physicist for potential contamination of beryllium and radiation for reuse. These lead bricks and shielding had been used as shielding material during explosives tests that included beryllium and depleted uranium. Based on surface swipe sampling that was performed between July 26 and October 11, 2010, specifically for beryllium, the use of a spray encapsulant was found to be an effective means to limit removable surface contamination to levels below the DOE release limit for beryllium, which is 0.2 mcg/100 cm{sup 2}. All the surface swipe sampling data for beryllium and a timeline of when the samples were collected (and a brief description) are presented in this report. On December 15, 2010, the lead bricks and shielding were surveyed with an ion chamber and indicated dose rates less than 0.05 mrem per hour on contact. This represents a dose rate consistent with natural background. An additional suevey was performed on February 8, 2011, using a GM survey instrument to estimate total activity on the lead bricks and shielding, confirming safe levels of radioactivity. The vendor is licensed to possess and work with radioactive material.

  4. Separation of Transmutation - and Fission-Produced Radioisotopes from Irradiated Beryllium

    SciTech Connect (OSTI)

    Troy J. Tranter; RIchard D. Tillotson; Nick R. Mann; Glen R. Longhurst

    2011-11-01

    The primary objective of this study was to test the effectiveness of a two-step solvent extraction-precipitation process for separating transmutation and fission products from irradiated beryllium. Beryllium metal was dissolved in nitric and fluoroboric acids. Isotopes of 241Am, 239Pu, 85Sr, 60Co, and 137Cs were then added to make a surrogate beryllium waste solution. A series of batch contacts was performed with the spiked simulant using chlorinated cobalt dicarbollide and polyethylene glycol diluted with sulfone to extract the isotopes of Cs and Sr. Another series of batch contacts was performed using a combination of octyl (phenyl)-N,Ndiisobutylcarbamoylmethylphosphine oxide in tributyl phosphate diluted with dodecane for extracting the isotopes of Pu and Am. The 60Co was separated by first forming a cobalt complex and then selectively precipitating the beryllium as a hydroxide. The results indicate that greater than 99.9% removal can be achieved for each radionuclide. Transuranic isotope contamination levels are reduced to less than 100 nCi/g, and sources of high beta-gamma radiation (60Co, 137Cs, and 90Sr) are reduced to levels that will allow the beryllium to be contact handled. The separation process may be applicable to a recycle or waste disposition scenario.

  5. Dating the Vinland Map

    ScienceCinema (OSTI)

    None

    2013-07-17

    Scientists from Brookhaven National Laboratory, the University of Arizona, and the Smithsonian Institution used carbon-dating technology to determine the age of a controversial parchment that might be the first-ever map of North America.

  6. DOE Publishes Petition of CSA Group for Classification as a Nationally...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    for Classification as a Nationally Recognized Certification Program for Small Electric Motors DOE Publishes Petition of CSA Group for Classification as a Nationally Recognized...

  7. Measurement of neutron yield by 62 MeV proton beam on a thick Beryllium target

    E-Print Network [OSTI]

    R. Alba; M. Barbagallo; P. Boccaccio; A. Celentano; N. Colonna; G. Cosentino; A. Del Zoppo; A. Di Pietro; J. Esposito; P. Figuera; P. Finocchiaro; A. Kostyukov; C. Maiolino; M. Osipenko; G. Ricco; M. Ripani; C. M. Viberti; D. Santonocito; M. Schillaci

    2012-08-08

    In the framework of research on IVth generation reactors and high intensity neutron sources a low-power prototype neutron amplifier was recently proposed by INFN. It is based on a low-energy, high current proton cyclotron, whose beam, impinging on a thick Beryllium converter, produces a fast neutron spectrum. The world database on the neutron yield from thick Beryllium target in the 70 MeV proton energy domain is rather scarce. The new measurement was performed at LNS, covering a wide angular range from 0 to 150 degrees and an almost complete neutron energy interval. In this contribution the preliminary data are discussed together with the proposed ADS facility.

  8. Displacement of the proton in hydrogen-bonded complexes of hydrogen fluoride by beryllium and magnesium ions

    SciTech Connect (OSTI)

    McDowell, Sean A. C. [Department of Biological and Chemical Sciences, University of the West Indies, Cave Hill Campus (Barbados)

    2009-05-14

    The displacement of the proton by a beryllium ion and by a magnesium ion from hydrogen-bonded complexes of hydrogen fluoride, of varying hydrogen bond strengths, was investigated theoretically using ab initio methods. Stable metal-containing species were obtained from all of the hydrogen-bonded complexes regardless of the strength of the hydrogen bond. It was found that the beryllium ion was energetically very effective in displacing the proton from hydrogen bonds, whereas the magnesium ion was unable to do so. The high stability of the beryllium-containing complexes is mainly due to the strong electrostatic bonding between the beryllium and fluoride atoms. This work supports the recent finding from a multidisciplinary bioinorganic study that beryllium displaces the proton in many strong hydrogen bonds.

  9. EMERGENCY MANAGEMENT Effective Date

    E-Print Network [OSTI]

    Fernandez, Eduardo

    SUBJECT: EMERGENCY MANAGEMENT Effective Date: 4-7-14 Policy Number: 1.14 Supersedes: Policy 4 assets and ensure continued operations during and after all manner of emergencies, whether natural or man- made, by implementing appropriate emergency management policies, plans, and procedures designed

  10. H: Graduation Petition Form.doc Rev: 8/2012 CIVIL & ENVIRONMENTAL ENGINEERING

    E-Print Network [OSTI]

    H: Graduation Petition Form.doc Rev: 8/2012 CIVIL & ENVIRONMENTAL ENGINEERING GRADUATION PETITION departmental graduation degree requirements. Return this form along with any supporting documents to the Civil & Environmental Engineering Department in More Hall 201, Box 352700. You may also submit this form and attachments

  11. Petition for Identified Waiver of Patent Rights | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested PartiesBuilding energy codes havePUBLICofPatriciaOrderDepartmentPeterPetition

  12. Implementation Guide for use with 10 CFR Part 850, Chronic Beryllium Disease Prevention Program

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2001-01-04

    The Department of Energy (DOE) has established regulatory requirements for the Chronic Beryllium Disease Prevention Program (CBDPP) in Title 10 of the Code of Federal Regulations (CFR), Part 850 (10 CFR 850) [64 Federal Register (FR) 68854]. Supersedes DOE G 440.1-7. Certified 9-23-10.

  13. Aerosol resuspension from fabric: implications for personal monitoring in the beryllium industry

    SciTech Connect (OSTI)

    Bohne, J.E. Jr.; Cohen, B.S.

    1985-02-01

    The fabric used for work clothing at an industrial site can significantly influence personal monitor (PM) exposure estimates because dust resuspension from clothing can increase the concentration at the sampler inlet. The magnitude of the effect depends on removal forces and on the interaction of the contaminant particles with work garments. Aerosol deposition and resuspension on cotton and Nomex aramid fabrics was evaluated at a beryllium refinery. Electrostatically charged cotton backdrops collected more beryllium than neutral controls, but electronegative Nomex backdrops did not. Moving fabrics collected more beryllium than did stationary controls. When contaminated fabrics were agitated, PMs mounted 2.5 cm in front of the fabric collected more beryllium than monitors above the fabric, positioned to simulate the nose or mouth. The difference between the air concentrations measured by these PMs increased with Be loading and tended to level off for highly contaminated fabric. Cotton resuspended a larger fraction of its contaminant load than Nomex. These results are consistent with current knowledge of the behavior of particles on fabric fibers. Aerosol resuspension from garments is an important consideration in assessing inhalation exposure to toxic dusts. A garment may attract and retain toxic particles. This contamination is then available for later resuspension.

  14. Evaluation of HEU-Beryllium Benchmark Experiments to Improve Computational Analysis of Space Reactors

    SciTech Connect (OSTI)

    Bess, John [Idaho National Laboratory (INL); Bledsoe, Keith C [ORNL; Rearden, Bradley T [ORNL

    2011-01-01

    An assessment was previously performed to evaluate modeling capabilities and quantify preliminary biases and uncertainties associated with the modeling methods and data utilized in designing a nuclear reactor such as a beryllium-reflected, highly-enriched-uranium (HEU)-O2 fission surface power (FSP) system for space nuclear power. The conclusion of the previous study was that current capabilities could preclude the necessity of a cold critical test of the FSP; however, additional testing would reduce uncertainties in the beryllium and uranium cross-section data and the overall uncertainty in the computational models. A series of critical experiments using HEU metal were performed in the 1960s and 1970s in support of criticality safety operations at the Y-12 Plant. Of the hundreds of experiments, three were identified as fast-fission configurations reflected by beryllium metal. These experiments have been evaluated as benchmarks for inclusion in the International Handbook of Evaluated Criticality Safety Benchmark Experiments (IHECSBE). Further evaluation of the benchmark experiments was performed using the sensitivity and uncertainty analysis capabilities of SCALE 6. The data adjustment methods of SCALE 6 have been employed in the validation of an example FSP design model to reduce the uncertainty due to the beryllium cross section data.

  15. Evaluation of HEU-Beryllium Benchmark Experiments to Improve Computational Analysis of Space Reactors

    SciTech Connect (OSTI)

    John D. Bess; Keith C. Bledsoe; Bradley T. Rearden

    2011-02-01

    An assessment was previously performed to evaluate modeling capabilities and quantify preliminary biases and uncertainties associated with the modeling methods and data utilized in designing a nuclear reactor such as a beryllium-reflected, highly-enriched-uranium (HEU)-O2 fission surface power (FSP) system for space nuclear power. The conclusion of the previous study was that current capabilities could preclude the necessity of a cold critical test of the FSP; however, additional testing would reduce uncertainties in the beryllium and uranium cross-section data and the overall uncertainty in the computational models. A series of critical experiments using HEU metal were performed in the 1960s and 1970s in support of criticality safety operations at the Y-12 Plant. Of the hundreds of experiments, three were identified as fast-fission configurations reflected by beryllium metal. These experiments have been evaluated as benchmarks for inclusion in the International Handbook of Evaluated Criticality Safety Benchmark Experiments (IHECSBE). Further evaluation of the benchmark experiments was performed using the sensitivity and uncertainty analysis capabilities of SCALE 6. The data adjustment methods of SCALE 6 have been employed in the validation of an example FSP design model to reduce the uncertainty due to the beryllium cross section data.

  16. Hylleraas-configuration-interaction study of the {sup 1}S ground state of neutral beryllium

    SciTech Connect (OSTI)

    Sims, James S.; Hagstrom, Stanley A. [National Institute of Standards and Technology, Gaithersburg, Maryland 20878-9957 (United States); Departments of Chemistry and Computer Science, Indiana University, Bloomington, Indiana 47405 (United States)

    2011-03-15

    Hylleraas-configuration-interaction (Hy-CI) method variational calculations are reported for the {sup 1}S ground state of neutral beryllium. The best nonrelativistic energy obtained was -14.667 356 4 hartree, which is estimated to be accurate to a tenth of a microhartree.

  17. Progress on a Cavity with Beryllium Walls for Muon Ionization Cooling Channel R&D.

    SciTech Connect (OSTI)

    Bowring, D.L.; DeMello, A.J.; Lambert, A.R.; Li, D.; Virostek,, S.; Zisman, M.; Kaplan, D.; Palmer, R.B.

    2012-05-20

    The Muon Accelerator Program (MAP) collaboration is working to develop an ionization cooling channel for muon beams. An ionization cooling channel requires the operation of high-gradient, normal-conducting RF cavities in multi-Tesla solenoidal magnetic fields. However, experiments conducted at Fermilab?s MuCool Test Area (MTA) show that increasing the solenoidal field strength reduces the maximum achievable cavity gradient. This gradient limit is characterized by an RF breakdown process that has caused significant damage to copper cavity interiors. The damage may be caused by field-emitted electrons, focused by the solenoidal magnetic field onto small areas of the inner cavity surface. Local heating may then induce material fatigue and surface damage. Fabricating a cavity with beryllium walls would mitigate this damage due to beryllium?s low density, low thermal expansion, and high electrical and thermal conductivity. We address the design and fabrication of a pillbox RF cavity with beryllium walls, in order to evaluate the performance of high-gradient cavities in strong magnetic fields.

  18. Memorandum, Clarification of Title 10 of the Code of Federal Regulations, Part 850 (10 CPR 850), Chronic Beryllium Disease Prevention Program, Paragraph 850.34(g)

    Broader source: Energy.gov [DOE]

    The purpose of this memorandum is to clarification regarding the reporting of beryllium sensitization (BeS) and chronic beryllium disease (CBD) as required by paragraph 850.34(g) of the Chronic Beryllium Disease Prevention Program rule (10 CFR 850).

  19. 1529-6466/02/0050-0014$10.00 DOI:10.2138/rmg.2002.50.14 14 Non-pegmatitic Deposits of Beryllium

    E-Print Network [OSTI]

    Barton, Mark D.

    1529-6466/02/0050-0014$10.00 DOI:10.2138/rmg.2002.50.14 14 Non-pegmatitic Deposits of Beryllium natural of occurrences (cf. Table 1, Fig. 4; see text for discussion). Beryllium minerals are best known. Compositions range from strongly peraluminous to #12;592 Chapter 14: Barton & Young Table 1. Beryllium minerals

  20. The Passivity and Breakdown of Beryllium in Aqueous Solutions M.A. Hill, D.P. Butt, and R.S. Lillard

    E-Print Network [OSTI]

    The Passivity and Breakdown of Beryllium in Aqueous Solutions M.A. Hill, D.P. Butt, and R beryllium (Be) has been studied as a function of pH. Below pH 2, Be exhibited active dissolution at all, the presence of the fluoride increased the passive current density of beryllium, but had no effect

  1. Validation of FSP Reactor Design with Sensitivity Studies of Beryllium-Reflected Critical Assemblies

    SciTech Connect (OSTI)

    John D. Bess; Margaret A. Marshall

    2013-02-01

    The baseline design for space nuclear power is a fission surface power (FSP) system: sodium-potassium (NaK) cooled, fast spectrum reactor with highly-enriched-uranium (HEU)-O2 fuel, stainless steel (SS) cladding, and beryllium reflectors with B4C control drums. Previous studies were performed to evaluate modeling capabilities and quantify uncertainties and biases associated with analysis methods and nuclear data. Comparison of Zero Power Plutonium Reactor (ZPPR)-20 benchmark experiments with the FSP design indicated that further reduction of the total design model uncertainty requires the reduction in uncertainties pertaining to beryllium and uranium cross-section data. Further comparison with three beryllium-reflected HEU-metal benchmark experiments performed at the Oak Ridge Critical Experiments Facility (ORCEF) concluded the requirement that experimental validation data have similar cross section sensitivities to those found in the FSP design. A series of critical experiments was performed at ORCEF in the 1960s to support the Medium Power Reactor Experiment (MPRE) space reactor design. The small, compact critical assembly (SCCA) experiments were graphite- or beryllium-reflected assemblies of SS-clad, HEU-O2 fuel on a vertical lift machine. All five configurations were evaluated as benchmarks. Two of the five configurations were beryllium reflected, and further evaluated using the sensitivity and uncertainty analysis capabilities of SCALE 6.1. Validation of the example FSP design model was successful in reducing the primary uncertainty constituent, the Be(n,n) reaction, from 0.28 %dk/k to 0.0004 %dk/k. Further assessment of additional reactor physics measurements performed on the SCCA experiments may serve to further validate FSP design and operation.

  2. Irradiated Beryllium Disposal Workshop, Idaho Falls, ID, May 29-30, 2002

    SciTech Connect (OSTI)

    Longhurst, Glen Reed; Anderson, Gail; Mullen, Carlan K; West, William Howard

    2002-07-01

    In 2001, while performing routine radioactive decay heat rate calculations for beryllium reflector blocks for the Advanced Test Reactor (ATR), it became evident that there may be sufficient concentrations of transuranic isotopes to require classification of this irradiated beryllium as transuranic waste. Measurements on samples from ATR reflector blocks and further calculations confirmed that for reflector blocks and outer shim control cylinders now in the ATR canal, transuranic activities are about five times the threshold for classification. That situation implies that there is no apparent disposal pathway for this material. The problem is not unique to the ATR. The High Flux Isotope Reactor at Oak Ridge National Laboratory, the Missouri University Research Reactor at Columbia, Missouri and other reactors abroad must also deal with this issue. A workshop was held in Idaho Falls Idaho on May 29-30, 2002 to acquaint stakeholders with these findings and consider a path forward in resolving the issues attendant to disposition of irradiated material. Among the findings from this workshop were (1) there is a real potential for the US to be dependent on foreign sources for metallic beryllium within about a decade; (2) there is a need for a national policy on beryllium utilization and disposition and for a beryllium coordinating committee to be assembled to provide guidance on that policy; (3) it appears it will be difficult to dispose of this material at the Waste Isolation Pilot Plant (WIPP) near Carlsbad, New Mexico due to issues of Defense classification, facility radioactivity inventory limits, and transportation to WIPP; (4) there is a need for a funded DOE program to seek resolution of these issues including research on processing techniques that may make this waste acceptable in an existing disposal pathway or allow for its recycle.

  3. Multiscale modeling of beryllium: quantum mechanics and laser-driven shock experiments using novel diagnostics.

    SciTech Connect (OSTI)

    Swift, D. C.; Paisley, Dennis L.; Kyrala, George A.; Hauer, Allan

    2002-01-01

    Ab initio quantum mechanics was used to construct a thermodynamically complete and rigorous equation of state for beryllium in the hexagonal and body-centred cubic structures, and to predict elastic constants as a function of compression. The equation of state agreed well with Hugoniot data and previously-published equations of state, but the temperatures were significantly different. The hexagonal/bcc phase boundary agreed reasonably well with published data, suggesting that the temperatures in our new equation of state were accurate. Shock waves were induced in single crystals and polycrystalline foils of beryllium, by direct illumination using the TRIDENT laser at Los Alamos. The velocity history at the surface of the sample was measured using a line-imaging VISAR, and transient X-ray diffraction (TXD) records were obtained with a plasma backlighter and X-ray streak cameras. The VISAR records exhibited elastic precursors, plastic waves, phase changes and spall. Dual TXD records were taken, in Bragg and Laue orientations. The Bragg lines moved in response to compression in the uniaxial direction. Because direct laser drive was used, the results had to be interpreted with the aid of radiation hydrodynamics simulations to predict the loading history for each laser pulse. In the experiments where there was evidence of polymorphism in the VISAR record, additional lines appeared in the Bragg and Laue records. The corresponding pressures were consistent with the phase boundary predicted by the quantum mechanical equation of state for beryllium. A model of the response of a single crystal of beryllium to shock loading is being developed using these new theoretical and experimental results. This model will be used in meso-scale studies of the response of the microstructure, allowing us to develop a more accurate representation of the behaviour of polycrystalline beryllium.

  4. Media contact: Release date

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on dark matter By SarahMODELING Release date: Todd A. NelsonJune 3,4,

  5. Media contact: Release date

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on dark matter By SarahMODELING Release date: Todd A. NelsonJune

  6. Media contact: Release date

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on dark matter By SarahMODELING Release date: Todd A. NelsonJuneJune

  7. Media contact: Release date

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on dark matter By SarahMODELING Release date: Todd A.

  8. Media contact: Release date

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on dark matter By SarahMODELING Release date: Todd A.February 10,

  9. VOLUME 80, NUMBER 13 P H Y S I C A L R E V I E W L E T T E R S 30 MARCH 1998 Anomalously Large Thermal Expansion at the (0001) Surface of Beryllium

    E-Print Network [OSTI]

    Pohl, Karsten

    Thermal Expansion at the (0001) Surface of Beryllium without Observable Interlayer Anharmonicity K. Pohl,1

  10. Possible signature of hypernova nucleosynthesis in a beryllium rich halo dwarf

    E-Print Network [OSTI]

    R. Smiljanic; L. Pasquini; F. Primas; P. Mazzali; D. Galli; G. Valle

    2008-01-07

    As part of a large survey of halo and thick disc stars, we found one halo star, HD 106038, exceptionally overabundant in beryllium. In spite of its low metallicity, [Fe/H] = -1.26, the star has log(Be/H) = -10.60, which is similar to the solar meteoritic abundance, log(Be/H) = -10.58. This abundance is more than ten times higher the abundance of stars with similar metallicity and cannot be explained by models of chemical evolution of the Galaxy that include the standard theory of cosmic-ray spallation. No other halo star exhibiting such a beryllium overabundance is known. In addition, overabundances of Li, Si, Ni, Y, and Ba are also observed. We suggest that all these chemical peculiarities, but the Ba abundance, can be simultaneously explained if the star was formed in the vicinity of a hypernova.

  11. Low Prevalence of Chronic Beryllium Disease among Workers at a Nuclear Weapons Research and Development Facility

    SciTech Connect (OSTI)

    Arjomandi, M; Seward, J P; Gotway, M B; Nishimura, S; Fulton, G P; Thundiyil, J; King, T E; Harber, P; Balmes, J R

    2010-01-11

    To study the prevalence of beryllium sensitization (BeS) and chronic beryllium disease (CBD) in a cohort of workers from a nuclear weapons research and development facility. We evaluated 50 workers with BeS with medical and occupational histories, physical examination, chest imaging with HRCT (N=49), and pulmonary function testing. Forty of these workers also underwent bronchoscopy for bronchoalveolar lavage (BAL) and transbronchial biopsies. The mean duration of employment at the facility was 18 yrs and the mean latency (from first possible exposure) to time of evaluation was 32 yrs. Five of the workers had CBD at the time of evaluation (based on histology or HRCT); three others had evidence of probable CBD. These workers with BeS, characterized by a long duration of potential Be exposure and a long latency, had a low prevalence of CBD.

  12. All-solid-state continuous-wave laser systems for ionization, cooling and quantum state manipulation of beryllium ions

    E-Print Network [OSTI]

    Lo, H -Y; Kienzler, D; Keitch, B C; de Clercq, L E; Negnevitsky, V; Home, J P

    2013-01-01

    We describe laser systems for photoionization, Doppler cooling and quantum state manipulation of beryllium ions. For photoionization of neutral beryllium, we have developed a continuous-wave 235 nm source obtained by two stages of frequency doubling from a diode laser at 940 nm. The system delivers up to 400 mW at 470 nm and 28 mW at 235 nm. For control of the beryllium ion, three laser wavelengths at 313 nm are produced by sum-frequency generation and second-harmonic generation from four infrared fiber lasers. Up to 7.2 W at 626 nm and 1.9 W at 313 nm are obtained using two pump beams at 1051 and 1551 nm. Intensity fluctuations below 0.5 % per hour (during 8 hours of operation) have been measured at a 313 nm power of 1 W. These systems are used to load beryllium ions into a segmented ion trap.

  13. All-solid-state continuous-wave laser systems for ionization, cooling and quantum state manipulation of beryllium ions

    E-Print Network [OSTI]

    H. -Y. Lo; J. Alonso; D. Kienzler; B. C. Keitch; L. E. de Clercq; V. Negnevitsky; J. P. Home

    2013-06-17

    We describe laser systems for photoionization, Doppler cooling and quantum state manipulation of beryllium ions. For photoionization of neutral beryllium, we have developed a continuous-wave 235 nm source obtained by two stages of frequency doubling from a diode laser at 940 nm. The system delivers up to 400 mW at 470 nm and 28 mW at 235 nm. For control of the beryllium ion, three laser wavelengths at 313 nm are produced by sum-frequency generation and second-harmonic generation from four infrared fiber lasers. Up to 7.2 W at 626 nm and 1.9 W at 313 nm are obtained using two pump beams at 1051 and 1551 nm. Intensity fluctuations below 0.5 % per hour (during 8 hours of operation) have been measured at a 313 nm power of 1 W. These systems are used to load beryllium ions into a segmented ion trap.

  14. Nuclear Transmutations in HFIR's Beryllium Reflector and Their Impact on Reactor Operation and Reflector Disposal

    SciTech Connect (OSTI)

    Chandler, David [ORNL; Maldonado, G Ivan [ORNL; Primm, Trent [ORNL; Proctor, Larry Duane [ORNL

    2012-01-01

    The High Flux Isotope Reactor located at the Oak Ridge National Laboratory utilizes a large cylindrical beryllium reflector that is subdivided into three concentric regions and encompasses the compact reactor core. Nuclear transmutations caused by neutron activation occur in the beryllium reflector regions, which leads to unwanted neutron absorbing and radiation emitting isotopes. During the past year, two topics related to the HFIR beryllium reflector were reviewed. The first topic included studying the neutron poison (helium-3 and lithium-6) buildup in the reflector regions and its affect on beginning-of-cycle reactivity. A new methodology was developed to predict the reactivity impact and estimated symmetrical critical control element positions as a function of outage time between cycles due to helium-3 buildup and was shown to be in better agreement with actual symmetrical critical control element position data than the current methodology. The second topic included studying the composition of the beryllium reflector regions at discharge as well as during decay to assess the viability of transporting, storing, and ultimately disposing the reflector regions currently stored in the spent fuel pool. The post-irradiation curie inventories were used to determine whether the reflector regions are discharged as transuranic waste or become transuranic waste during the decay period for disposal purposes and to determine the nuclear hazard category, which may affect the controls invoked for transportation and temporary storage. Two of the reflector regions were determined to be transuranic waste at discharge and the other region was determined to become transuranic waste in less than 2 years after being discharged due to the initial uranium content (0.0044 weight percent uranium). It was also concluded that all three of the reflector regions could be classified as nuclear hazard category 3 (potential for localized consequences only).

  15. Relativistic configuration-interaction calculation of $K\\alpha$ transition energies in beryllium-like argon

    E-Print Network [OSTI]

    Yerokhin, V A; Fritzsche, S

    2014-01-01

    Relativistic configuration-interaction calculations have been performed for the energy levels of the low-lying and core-excited states of beryllium-like argon, Ar$^{14+}$. These calculations include the one-loop QED effects as obtained by two different methods, the screening-potential approach as well as the model QED operator approach. The calculations are supplemented by a systematic estimation of uncertainties of theoretical predictions.

  16. Beryllium abundances in parent stars of extrasolar planets: 16 Cyg A & B and rho 1 Cnc

    E-Print Network [OSTI]

    R. J. Garcia Lopez; M. R. Perez de Taoro

    1998-03-03

    The Be II 3131 A doublet has been observed in the solar-type stars 16 Cyg A & B and in the late G-type star rho 1 Cnc, to derive their beryllium abundances. 16 Cyg A & B show similar (solar) beryllium abundances while 16 Cyg B, which has been proposed to have a planetary companion of ~2 M_Jup, is known to be depleted in lithium by a factor larger than 6 with respect to 16 Cyg A. Differences in their rotational histories which could induce different rates of internal mixing of material, and the ingestion of a similar planet by 16 Cyg A are discussed as potential explanations. The existence of two other solar-type stars which are candidates to harbour planetary-mass companions and which show lithium and beryllium abundances close to those of 16 Cyg A, requires a more detailed inspection of the peculiarities of the 16 Cyg system. For rho 1 Cnc, which is the coolest known object candidate to harbour a planetary-mass companion (M > 0.85 M_Jup), we establish a precise upper limit for its beryllium abundance, showing a strong Be depletion which constrains the available mixing mechanisms. Observations of similar stars without companions are required to asses the potential effects of the planetary companion on the observed depletion. It has been recently claimed that rho 1 Cnc appears to be a subgiant. If this were the case, the observed strong Li and Be depletions could be explained by a dilution process taking place during its post-main sequence evolution.

  17. Sampling for Beryllium Surface Contamination using Wet, Dry and Alcohol Wipe Sampling

    SciTech Connect (OSTI)

    Kerr, Kent

    2004-12-17

    This research project was conducted at the National Nuclear Security Administration's Kansas City Plant, operated by Honeywell Federal Manufacturing and Technologies, in conjunction with the Safety Sciences Department of Central Missouri State University, to compare relative removal efficiencies of three wipe sampling techniques currently used at Department of Energy facilities. Efficiencies of removal of beryllium contamination from typical painted surfaces were tested by wipe sampling with dry Whatman 42 filter paper, with water-moistened (Ghost Wipe) materials, and by methanol-moistened wipes. Test plates were prepared using 100 mm X 15 mm Pyrex Petri dishes with interior surfaces spray painted with a bond coat primer. To achieve uniform deposition over the test plate surface, 10 ml aliquots of solution containing 1 beryllium and 0.1 ml of metal working fluid were transferred to the test plates and subsequently evaporated. Metal working fluid was added to simulate the slight oiliness common on surfaces in metal working shops where fugitive oil mist accumulates over time. Sixteen test plates for each wipe method (dry, water, and methanol) were processed and sampled using a modification of wiping patterns recommended by OSHA Method 125G. Laboratory and statistical analysis showed that methanol-moistened wipe sampling removed significantly more (about twice as much) beryllium/oil-film surface contamination as water-moistened wipes (p< 0.001), which removed significantly more (about twice as much) residue as dry wipes (p <0.001). Evidence for beryllium sensitization via skin exposure argues in favor of wipe sampling with wetting agents that provide enhanced residue removal efficiency.

  18. Failure prediction of cross-rolled beryllium sheets subjected to transverse point loads 

    E-Print Network [OSTI]

    Mascorro, Edward

    1991-01-01

    advantage of this formulation is its ability to take into account interdependence of the failure stress components. Previous theories assume that biaxially loaded specimens have failure surfaces that are only functions of the uniaxial failure stresses.... It is shown in section 2 that cross-rolled beryllium is stronger when it is loaded biaxially than when loaded uniaxially. Although previous theories can not describe this phenomenon, the Tsai-Wu formulation is simple yet flexible enough to model...

  19. Benchmark Evaluation of Uranium Metal Annuli and Cylinders with Beryllium Reflectors

    SciTech Connect (OSTI)

    John D. Bess

    2010-06-01

    An extensive series of delayed critical experiments were performed at the Oak Ridge Critical Experiments Facility using enriched uranium metal during the 1960s and 1970s in support of criticality safety operations at the Y-12 Plant. These experiments were designed to evaluate the storage, casting, and handling limits of the Y-12 Plant and to provide data for the verification of cross sections and calculation methods utilized in nuclear criticality safety applications. Many of these experiments have already been evaluated and included in the International Criticality Safety Benchmark Evaluation Project (ICSBEP) Handbook: unreflected (HEU-MET-FAST-051), graphite-reflected (HEU-MET-FAST-071), and polyethylene-reflected (HEU-MET-FAST-076). Three of the experiments consisted of highly-enriched uranium (HEU, ~93.2% 235U) metal parts reflected by beryllium metal discs. The first evaluated experiment was constructed from a stack of 7-in.-diameter, 4-1/8-in.-high stack of HEU discs top-reflected by a 7-in.-diameter, 5-9/16-in.-high stack of beryllium discs. The other two experiments were formed from stacks of concentric HEU metal annular rings surrounding a 7-in.diameter beryllium core. The nominal outer diameters were 13 and 15 in. with a nominal stack height of 5 and 4 in., respectively. These experiments have been evaluated for inclusion in the ICSBEP Handbook.

  20. Comprehensive Measurement of Neutron Yield Produced by 62 MeV Protons on Beryllium Target

    E-Print Network [OSTI]

    M. Osipenko; M. Ripani; R. Alba; G. Ricco; M. Schillaci; M. Barbagallo; P. Boccaccio; A. Celentano; N. Colonna; L. Cosentino; A. Del Zoppo; A. Di Pietro; J. Esposito; P. Figuera; P. Finocchiaro; A. Kostyukov; C. Maiolino; D. Santonocito; V. Scuderi; C. M. Viberti

    2013-06-28

    A low-power prototype of neutron amplifier, based on a 70 MeV, high current proton cyclotron being installed at LNL for the SPES RIB facility, was recently proposed within INFN-E project. This prototype uses a thick Beryllium converter to produce a fast neutron spectrum feeding a sub-critical reactor core. To complete the design of such facility the new measurement of neutron yield from a thick Beryllium target was performed at LNS. This measurement used liquid scintillator detectors to identify produced neutrons by Pulse Shape Discrimination and Time of Flight technique to measure neutron energy in the range 0.5-62 MeV. To extend the covered neutron energy range He3 detector was used to measure neutrons below 0.5 MeV. The obtained yields were normalized to the charge deposited by the proton beam on the metallic Beryllium target. These techniques allowed to achieve a wide angular coverage from 0 to 150 degrees and to explore almost complete neutron energy interval.

  1. Comprehensive Measurement of Neutron Yield Produced by 62 MeV Protons on Beryllium Target

    E-Print Network [OSTI]

    Osipenko, M; Alba, R; Ricco, G; Schillaci, M; Barbagallo, M; Boccaccio, P; Celentano, A; Colonna, N; Cosentino, L; Del Zoppo, A; Di Pietro, A; Esposito, J; Figuera, P; Finocchiaro, P; Kostyukov, A; Maiolino, C; Santonocito, D; Scuderi, V; Viberti, C M

    2013-01-01

    A low-power prototype of neutron amplifier, based on a 70 MeV, high current proton cyclotron being installed at LNL for the SPES RIB facility, was recently proposed within INFN-E project. This prototype uses a thick Beryllium converter to produce a fast neutron spectrum feeding a sub-critical reactor core. To complete the design of such facility the new measurement of neutron yield from a thick Beryllium target was performed at LNS. This measurement used liquid scintillator detectors to identify produced neutrons by Pulse Shape Discrimination and Time of Flight technique to measure neutron energy in the range 0.5-62 MeV. To extend the covered neutron energy range He3 detector was used to measure neutrons below 0.5 MeV. The obtained yields were normalized to the charge deposited by the proton beam on the metallic Beryllium target. These techniques allowed to achieve a wide angular coverage from 0 to 150 degrees and to explore almost complete neutron energy interval.

  2. Rapid Separation of Beryllium and Lanthanide Derivatives by Capillary Gas Chromatography

    SciTech Connect (OSTI)

    Harvey, Scott D.; Lucke, Richard B.; Douglas, Matthew

    2012-10-01

    Previous studies describe derivatization of metal ions followed by analysis using gas chromatography, usually on packed columns. In many of these studies, stable and volatile derivatives were formed using fluorinated ?-diketonate reagents. This paper extends previous work by investigating separations of the derivatives on small-diameter capillary gas chromatography columns and exploring on-fiber, solid-phase microextraction derivatization techniques for beryllium. The ?-diketonate used for these studies was 1,1,1,2,2,6,6,7,7,7-decafluoro-3,5-heptanedione. Derivatization of lanthanides also required addition of a neutral donor, dibutyl sulfoxide, in addition to 1,1,1,2,2,6,6,7,7,7-decafluoro-3,5-heptanedione. Un-optimized separations on a 100-µm i.d. capillary column proved capable of rapid separations (within 15 min) of lanthanide derivatives that are adjacent to one another in the periodic table. Full-scan mass spectra were obtained from derivatives containing 5 ng of each lanthanide. Studies also developed a simple on-fiber solid-phase microextraction derivatization of beryllium. Beryllium could be analyzed in the presence of other alkali earth elements [Ba(II) and Sr(II)] without interference. Extension of the general approach was demonstrated for several additional elements [i.e., Cu(II), Cr(III), and Ga(III)].

  3. DOE - Office of Legacy Management -- Rocky Flats Petition

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouth DakotaRobbins and700, 1.Reports FernaldNew ProcessingPetition

  4. Analysis of HLA-DP association with beryllium disease susceptibility in pooled exposed populations

    SciTech Connect (OSTI)

    Cesare Saltini, Massimo Amicosante

    2009-12-19

    Berylliosis or Chronic Beryllium Disease is a chronic granulomatous disorder primarily involving the lung associated with the exposition to low doses of Beryllium (Be) in the workplace. Berylliosis risk has been associated with the presence of a glutamate at position 69 of the HLA-DP beta chain (HLA-DPbetaGlu69) that is expressed in about 97% of disease cases and in 27% of the unaffected Be-exposed controls (p<0.0001) (Richeldi et al. Science 1993; 262: 242-244.12). Since this first observation of an immunogenetic association between berylliosis and HLA-DPbetaGlu69 a number of studies have confirmed the role of this marker as the primary gene of susceptibility of berylliosis (Richeldi et al Am J Ind Med. 1997; 32:337-40; Wang et al J. Immunol. 1999; 163: 1647-53; Saltini et al Eur Respir J. 2001 18:677-84; Rossman et al Am J Respir Crit Care Med. 2002 165:788-94). Moreover, a structure/function interaction between HLA-DP molecules carrying Glu69 and beryllium in driving and developing the immune response against beryllium itself has been observed as: (1) Be-specific T-cells clones obtained from berylliosis patients recognize beryllium as antigen only when presented in the context of the HLA-DP{beta}Glu69 molecules but not in the context of HLA-DP allelic variants carrying Lys69 (Lombardi G et al. J Immunol 2001; 166: 3549-3555), and (2) beryllium presents an affinity for the HLA-DP2, carrying the berylliosis marker of susceptibility HLA-DPGlu69, from 40 to 100 times higher that the HLA-DP molecule carrying Lys69 (Amicosante M. et al Hum. Immunol. 2001; 62: 686-93). However, although the immunogenetic studies performed have been addressed a number of different questions about the genetic association between berylliosis and/or beryllium sensitization, exposure levels to beryllium and HLA markers, a number of questions are still open in the field mainly due to the limitation imposed by the low number of subjects carrying berylliosis or beryllium sensitization enrolled in each immunogenetic study. In this context, the populations of the study already performed in this field by the University of Modena and Rome (by Prof. C. Saltini) and the University of Pennsylvania (by Prof. M. Rossman) have been evaluated by using similar HLA molecular typing methodologies and that both populations have now been followed up for a period of 4 to 7 years. The general objective of this study has to generate a larger data base comprising the two population with which analyze gene disease association with greater statistical power and ascertain the effect of lesser common gener variants which may be missed when analyzing associations on small populations. In particular addressing the role suggested in previous study such as: (1) the role of HLA-DP rare alleles and polymorphisms, and (2) the role of the HLA markers in disease progression from sensitization. The two populations from the already published studies (Saltini et al Eur Respir J. 2001 18:677-84; Rossman et al Am J Respir Crit Care Med. 2002 165:788-94) present similar aspects about: ethnicity, type and length of exposure to Be dust, a broadly similar association between beryllium related abnormalities and HLA. The two population have been pooled and evaluated using common criteria of diagnosis (Sensitized subject: at least 2 positive BeLPT tests each with 2 positive wells; CBD-affected subject: identification of well formed non-caseating granulomas on biopsy), follow up and HLA typing technique (complete HLA-DRB, DQB, DPB high resolution typing using amplification with sequence specific primers or sequence based typing). The two populations included 137 subjects with Beryllium hypersensitized (BH) and 155 Be-exposed controls. Inclusion criteria were met by one hundred and six subjects with Be-hypersensitivity of whom 55 were affected by CBD (age 52 {+-} 11 years; 50 caucasians, 2 African-Americans 2 Hispanics and 1 Asian; 46 males and 9 females; mean duration of Be-exposure 15 {+-} 9 years) and 51 showed Be-sensitization without lung granulomas detected by trans-bronchial biopsy (ag

  5. Oregon - OAR 860-025-0030 - Petition for CPCN for Construction...

    Open Energy Info (EERE)

    Oregon - OAR 860-025-0030 - Petition for CPCN for Construction of Overhead Transmission Lines Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document-...

  6. Beryllium Health and Safety Committee Data Reporting Task Force White Paper #2 -- Uses of Uncensored Data

    SciTech Connect (OSTI)

    MacQueen, D H

    2007-10-10

    On December 8, 1999, the Department of Energy (DOE) published Title 10 CFR 850 (hereafter referred to as the Rule) to establish a chronic beryllium disease prevention program (CBDPP) to: (1) reduce the number of workers currently exposed to beryllium in the course of their work at DOE facilities managed by DOE or its contractors; (2) minimize the levels of, and potential for, exposure to beryllium; and (3) establish medical surveillance requirements to ensure early detection of the disease. On January 4, 2001, DOE issued DOE G 440.1-7A, Implementation Guide for use with 10 CFR 850, Chronic Beryllium Disease Prevention Program, to assist line managers in meeting their responsibilities for implementing the CBDPP. That guide describes methods and techniques that DOE considers acceptable in complying with the Rule. In 2005 a draft DOE Technical Standard ''Management of Items and Areas Containing Low Levels of Beryllium'' (SAFT 0103; hereafter referred to as the ''TS'') was circulated for comment (http://www.hss.energy.gov/NuclearSafety/techstds/tsdrafts/saft-0103.pdf). DOE technical standards are voluntary consensus standards developed when industry standards do not exist (see http://www.hss.energy.gov/NuclearSafety/techstds/index.html for more information). DOE does not require its field elements to implement DOE technical standards, but field elements may choose to adopt these standards to meet specific needs. This beryllium TS is intended to provide best practices and lessons learned for manageing items and areas that contain low levels of beryllium, which has been a costly and technically challenging component of CBDPPs. The TS is also intended to provide guidance for determining if the Rule's housekeeping and release criteria are met. On challenge the TS addressed was the statistical interpretation of data sets with non-detected results, a topic for which no strong consensus exists. Among the many comments on the draft TS was a suggestion that certain of the statistical comparisons described in the TS could be better implemented if analytical results, even when below a reporting limit, were to be reported by analytical laboratories. See Appendix 1 for a review of terminology related to reporting limits. The Beryllium Health and Safety Committee (BHSC) formed a Sampling and Analysis Subcommittee (SAS) in 2003. The SAS established a working group on accreditation and reporting limits. By 2006 it had become evident that the issues extended to data reporting as a whole. The SAS proposed to the BHSC the formation of a Data Reporting Task Force (DRTF) to consider issues related to data reporting. The BHSC Board agreed, and requested that the DRTF generate a white paper, to be offered by the BHSC to potential interested parties such as the DOE policy office that is responsible for beryllium health and safety policy. It was noted that additional products could include detailed guidance and potentially a journal article in the future. The SAS proposed that DRTF membership represent the affected disciplines (chemists, industrial hygiene professionals and statisticians, and the DOE office that is responsible for beryllium health and safety policy). The BHSC Board decided that DRTF membership should come from DOE sites, since the focus would be on reporting in the context of the TS and the Rule. The DRTF came into existence in late 2006. The DRTF membership includes industrial hygienists, analytical chemists and laboratory managers, members of the regulatory and oversight community, and environmental statisticians. A first White Paper, ''Summary of Issues and Path Forward'', was reviewed by the BHSC in March 2007 and issued by the DRTF in June 2007. It describes the charter of the DRTF, introduces some basic terminology (reproduced here in Appendix 1), lays out the issues the DRTF is expected to address, and describes a path forward for the DRTF's work. This first White Paper is available through the BHSC web site. This White Paper presents recommendations developed by the DRTF following the process laid out in that first White Pap

  7. Dates Fact Sheet.cdr

    Energy Savers [EERE]

    detection with multiple detection algorithms, including model- based and flow anomaly detection and cross-site attack correlation. The DATES detection and SIEM...

  8. Face-Cooling of Beryllium Window at z = 3 m in Magnet IDS120h Bob Weggel, M.O.R.E., LLC

    E-Print Network [OSTI]

    McDonald, Kirk

    1 Face-Cooling of Beryllium Window at z = 3 m in Magnet IDS120h Bob Weggel, M.O.R.E., LLC December 24, 2011 This report analyzes the face-cooling--by water or helium gas--of a beryllium window at z at ­1, +0.7) is 103 W/g--i.e., 190 W/cm3 for beryllium, which has a density of 1.85 g/cm3 . The power

  9. Peak T in Edge-Cooled Beryllium Window at z = 3 m in Magnet IDS120h Bob Weggel, M.O.R.E., LLC

    E-Print Network [OSTI]

    McDonald, Kirk

    Peak T in Edge-Cooled Beryllium Window at z = 3 m in Magnet IDS120h Bob Weggel, M.O.R.E., LLC:16 PM) to incorporate Nick's latest predictions of the power density in a beryllium window at z = 3 m, +0.7) of 103 W/g--190 W/cm3 for beryllium (1.85 g/cm3 ). [Note: File "IDS120hm_BeWind_TDP_NO_SH1_NP

  10. Production of J=/ at Large x F in 800 GeV/c p--Copper and p--Beryllium Collisions

    E-Print Network [OSTI]

    Production of J=/ at Large x F in 800 GeV/c p--Copper and p--Beryllium Collisions M. S. Kowitt section of J=/ with 800 GeV/c protons on copper and beryllium, with good acceptance for p? ! 5 GeV/c over observed via the decay J=/ ! ¯ + ¯ \\Gamma . For a portion of the data , a thick beryllium target (91.4 cm

  11. JET Papers presented to the 2nd IEA International Workshop on Beryllium Technology for Fusion (6th September 1995, Jackson Hole, USA)

    E-Print Network [OSTI]

    JET Papers presented to the 2nd IEA International Workshop on Beryllium Technology for Fusion (6th September 1995, Jackson Hole, USA)

  12. Influence of Atomic Physics on EDGE2D-EIRENE Simulations of JET Divertor Detachment with Carbon and Beryllium/Tungsten Plasma-Facing Components

    E-Print Network [OSTI]

    Influence of Atomic Physics on EDGE2D-EIRENE Simulations of JET Divertor Detachment with Carbon and Beryllium/Tungsten Plasma-Facing Components

  13. Target Particle and Heat Loads in Low-Triangularity L-mode Plasmas in JET with Carbon and Beryllium/Tungsten Walls

    E-Print Network [OSTI]

    Target Particle and Heat Loads in Low-Triangularity L-mode Plasmas in JET with Carbon and Beryllium/Tungsten Walls

  14. Halo effective field theory constrains the solar Beryllium-7 + proton -> Boron-8 + photon rate

    E-Print Network [OSTI]

    Xilin Zhang; Kenneth M. Nollett; D. R. Phillips

    2015-07-26

    We report an improved low-energy extrapolation of the cross section for the process Beryllium-7+proton -> Boron-8+photon, which determines the Boron-8 neutrino flux from the Sun. Our extrapolant is derived from Halo Effective Field Theory (EFT) at next-to-leading order. We apply Bayesian methods to determine the EFT parameters and the low-energy S-factor, using measured cross sections and scattering lengths as inputs. Asymptotic normalization coefficients of Boron-8 are tightly constrained by existing radiative capture data, and contributions to the cross section beyond external direct capture are detected in the data at E prediction for S(E).

  15. A Lithium-Beryllium Method for the Detection of Solar Neutrinos

    E-Print Network [OSTI]

    A. V. Kopylov; I. V. Orekhov; V. V. Petukhov; A. E. Solomatin

    2009-10-20

    A method for the detection of solar neutrino has been developed using the laboratory bench installations. The efficiency of the extraction of beryllium from lithium as high as 96.4{%} has been achieved, and it was shown that lithium losses during the extraction were less than 1{%}. The prospects of a full-scale experiment with a 10-t lithium detector consisting of twenty 500-kg lithium modules are discussed. The technical solutions formulated on the basis of this study enable to make design of a pilot lithium installation containing 500 kg of metallic lithium

  16. Isotope Shifts in Beryllium-, Boron-, Carbon-, and Nitrogen-like Ions from Relativistic Configuration Interaction Calculations

    E-Print Network [OSTI]

    Nazé, C; Rynkun, P; Gaigalas, G; Godefroid, M; Jönsson, P

    2014-01-01

    Energy levels, normal and specific mass shift parameters as well as electronic densities at the nucleus are reported for numerous states along the beryllium, boron, carbon, and nitrogen isoelectronic sequences. Combined with nuclear data, these electronic parameters can be used to determine values of level and transition isotope shifts. The calculation of the electronic parameters is done using first-order perturbation theory with relativistic configuration interaction wave functions that account for valence, core-valence and core-core correlation effects as zero-order functions. Results are compared with experimental and other theoretical values, when available.

  17. Carrier dynamics in Beryllium doped low-temperature-grown InGaAs/InAlAs

    SciTech Connect (OSTI)

    Globisch, B., E-mail: Bjoern.Globisch@hhi.fraunhofer.de; Dietz, R. J. B.; Stanze, D.; Göbel, T.; Schell, M. [Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute, Einsteinufer 37, 10587 Berlin (Germany)

    2014-04-28

    The electron and hole dynamics in low-temperature-grown InGaAs/InAlAs multiple quantum well structures are studied by optical pump-probe transmission measurements for Beryllium (Be) doping levels between 3?×?10{sup 17}?cm{sup ?3} and 4?×?10{sup 18}?cm{sup ?3}. We investigate electron dynamics in the limit cases of unsaturated and completely saturated electron trapping. By expanding a rate equation model in these limits, the details of carrier dynamics are revealed. Electrons are trapped by ionized arsenic antisites, whereas recombination occurs between trapped electrons and holes trapped by negatively charged Be dopants.

  18. Helium-cluster decay widths of molecular states in beryllium and carbon isotopes

    E-Print Network [OSTI]

    J. C. Pei; F. R. Xu

    2007-02-01

    The $\\alpha$ particle and $^6$He emissions from possible molecular states in beryllium and carbon isotopes have been studied using a mean-field-type cluster potential. Calculations can reproduce well the $\\alpha$-decay widths of excited states in $^{8}$Be, $^{12}$C and $^{20}$Ne. For the nucleus $^{10}$Be, we discussed the $\\alpha$-decay widths with different shapes or decay modes, in order to understand the very different decay widths of two excited states. The widths of $^{6}$He decay from $^{12}$Be and $\\alpha$ decays from $^{13,14}$C are predicted, which could be useful for future experiments.

  19. Spectroscopic accuracy directly from quantum chemistry: application to ground and excited states of beryllium dimer

    E-Print Network [OSTI]

    Sharma, Sandeep; Booth, George H; Umrigar, C J; Chan, Garnet Kin-Lic

    2014-01-01

    We combine explicit correlation via the canonical transcorrelation approach with the density matrix renormalization group and initiator full configuration interaction quantum Monte Carlo methods to compute a near-exact beryllium dimer curve, {\\it without} the use of composite methods. In particular, our direct density matrix renormalization group calculations produce a well-depth of $D_e$=931.2 cm$^{-1}$ which agrees very well with recent experimentally derived estimates $D_e$=929.7$\\pm 2$~cm$^{-1}$ [Science, 324, 1548 (2009)] and $D_e$=934.6~cm$^{-1}$ [Science, 326, 1382 (2009)

  20. Sub Shot-Noise interferometric phase sensitivity with Beryllium ions Schroedinger Cat States

    E-Print Network [OSTI]

    Luca Pezzé; Augusto Smerzi

    2007-05-25

    Interferometry with NOON quantum states can provide unbiased phase estimation with a sensitivity scaling as $\\Delta \\theta \\sim 1/N_T$ given a prior knowledge that the true phase shift $\\theta$ lies in the interval $-\\pi \\leq \\theta \\leq \\pi$. The protocol requires a total of $N_T = 2^{p}-1$ particles (unequally) distributed among $p$ independent measurements and overcomes basic difficulties present in previously proposed approaches. We demonstrate the possibility to obtain a phase sensitivity beating the classical shot-noise limit using published probabilities retrieved experimentally for the creation of Schr\\"odinger cat quantum states containing up to N=6 beryllium ions.

  1. Scattering of low-energy electrons and positrons by atomic beryllium: Ramsauer-Townsend effect

    E-Print Network [OSTI]

    Reid, David D

    2014-01-01

    Total cross sections for the scattering of low-energy electrons and positrons by atomic beryllium in the energy range below the first inelastic thresholds are calculated. A Ramsauer-Townsend minimum is seen in the electron scattering cross sections, while no such effect is found in the case of positron scattering. A minimum total cross section of 0.016 a.u. at 0.0029 eV is observed for the electron case. In the limit of zero energy, the cross sections yield a scattering length of -0.61 a.u. for electron and +13.8 a.u. for positron scattering.

  2. Student Name: Z: Program: Date

    E-Print Network [OSTI]

    Fernandez, Eduardo

    Student Name: Z: Program: Date: Advisor: Contact: 4 YEAR FLIGHT PLAN FOR PRE-HEALTH PROFESSIONS BS://www.science.fau.edu/student_services/ Academic Program Information SHARI GOLDSTEIN, Assoc. Dir. Pre-Health Professions Program Office Location: Z: Program: Date: Advisor: Contact: Flight Plan: Pre-Health Professions (BS in NEUROSCIENCE

  3. Student Name: Z: Program: Date

    E-Print Network [OSTI]

    Fernandez, Eduardo

    Student Name: Z: Program: Date: Advisor: Contact: 4 YEAR FLIGHT PLAN FOR PRE-HEALTH PROFESSIONS BS Program Information SHARI GOLDSTEIN, Assoc. Dir. Pre-Health Professions Program Office Location: SE308 Services. #12;Student Name: Z: Program: Date: Advisor: Contact: Flight Plan: Pre-Health Professions (BS

  4. Student Name: Z: Program: Date

    E-Print Network [OSTI]

    Fernandez, Eduardo

    Student Name: Z: Program: Date: Advisor: Contact: 4 YEAR FLIGHT PLAN: BA in GEOGRAPHY FAU: Program: Date: Advisor: Contact: Flight Plan: BA in Geography NOTE: Some students may be required. 1. Utilize DARS / print and read audit. 2. Visit tutoring resources on campus. 3. Aim for an overall

  5. A high-power 626 nm diode laser system for Beryllium ion trapping

    E-Print Network [OSTI]

    H. Ball; M. W. Lee; S. D. Gensemer; M. J. Biercuk

    2013-04-07

    We describe a high-power, frequency-tunable, external cavity diode laser (ECDL) system near 626 nm useful for laser cooling of trapped $^9$Be$^+$ ions. A commercial single-mode laser diode with rated power output of 170 mW at 635 nm is cooled to $\\approx - 31$ C, and a single longitudinal mode is selected via the Littrow configuration. In our setup, involving multiple stages of thermoelectric cooling, we are able to obtain $\\approx$130 mW near 626 nm, sufficient for efficient frequency doubling to the required Doppler cooling wavelengths near 313 nm in ionized Beryllium. In order to improve nonlinear frequency conversion efficiency, we achieve larger useful power via injection locking of a slave laser. In this way the entirety of the slave output power is available for frequency doubling, while analysis may be performed on the master output. We believe that this simple laser system addresses a key need in the ion trapping community and dramatically reduces the cost and complexity associated with Beryllium ion trapping experiments.

  6. Beryllium Adsorption at Transition Aluminas: Implications for Environmental Science and Oxidation of Aluminum Alloys

    SciTech Connect (OSTI)

    Sergey N. Rashkeev; Michael V. Glazoff

    2010-08-01

    It is demonstrated that?gamma- and?eta- aluminas (transition Al2O3 polytypes with defect spinel structure) can effectively capture beryllium atoms. Although the bulk crystal structures of these two oxides are characterized only by slight differences in cation vacancy distributions, the interaction of Be with the two polytypes are different. For gamma- Al2O3, the Be adsorption energy is high (~ 5 eV per atom), and all Be atoms are captured and trapped at the surface - all attempts to move Be in the subsurface region result in its expulsion back to the surface. On the other hand, for ?eta- alumina Be atoms can be captured both at the surface and in octahedrally-coordinated subsurface cation vacancies. This result implies that both alumina oxides could be successfully used for Be capture out of wastewater streams related to industrial processes of aluminum and alumina production. Also, the surface adsorption mechanism of Be at?gamma- Al2O3 explains why very small additions of Be (of the order of several ppm) to Al-Mg and Al-Mg-Si casting and wrought alloys prevent run-away oxidation of these materials in molten state, as well as ingot cracking. We also discuss possibilities to use other additives (e.g., Ca and Sr) yielding the same protective effect for aluminum alloys but which are less toxic than beryllium.

  7. Graphite and Beryllium Reflector Critical Assemblies of UO2 (Benchmark Experiments 2 and 3)

    SciTech Connect (OSTI)

    Margaret A. Marshall; John D. Bess

    2012-11-01

    INTRODUCTION A series of experiments was carried out in 1962-65 at the Oak Ridge National Laboratory Critical Experiments Facility (ORCEF) for use in space reactor research programs. A core containing 93.2 wt% enriched UO2 fuel rods was used in these experiments. The first part of the experimental series consisted of 252 tightly-packed fuel rods (1.27-cm triangular pitch) with graphite reflectors [1], the second part used 252 graphite-reflected fuel rods organized in a 1.506-cm triangular-pitch array [2], and the final part of the experimental series consisted of 253 beryllium-reflected fuel rods in a 1.506-cm-triangular-pitch configuration and in a 7-tube-cluster configuration [3]. Fission rate distribution and cadmium ratio measurements were taken for all three parts of the experimental series. Reactivity coefficient measurements were taken for various materials placed in the beryllium reflected core. All three experiments in the series have been evaluated for inclusion in the International Reactor Physics Experiment Evaluation Project (IRPhEP) [4] and the International Criticality Safety Benchmark Evaluation Project (ICSBEP) Handbooks, [5]. The evaluation of the first experiment in the series was discussed at the 2011 ANS Winter meeting [6]. The evaluations of the second and third experiments are discussed below. These experiments are of interest as benchmarks because they support the validation of compact reactor designs with similar characteristics to the design parameters for a space nuclear fission surface power systems [7].

  8. Beryllium and Graphite High-Accuracy Total Cross-Section Measurements in the Energy Range from 24 to 900 keV

    E-Print Network [OSTI]

    Danon, Yaron

    cross section and has been used as a neutron reflector in compact high flux reactors such as the Ad- vanced Test Reactor1 ~ATR!. Because of its low atomic mass, beryllium can also be used as a moderator, and its light weight makes it favorable in space applications.1 Beryllium also has applications in fusion

  9. No-migration variance petition: Draft. Volume 4, Appendices DIF, GAS, GCR (Volume 1)

    SciTech Connect (OSTI)

    1995-05-31

    The Department of Energy is responsible for the disposition of transuranic (TRU) waste generated by national defense-related activities. Approximately 2.6 million cubic feet of the se waste have been generated and are stored at various facilities across the country. The Waste Isolation Pilot Plant (WIPP), was sited and constructed to meet stringent disposal requirements. In order to permanently dispose of TRU waste, the DOE has elected to petition the US EPA for a variance from the Land Disposal Restrictions of RCRA. This document fulfills the reporting requirements for the petition. This report is volume 4 of the petition which presents details about the transport characteristics across drum filter vents and polymer bags; gas generation reactions and rates during long-term WIPP operation; and geological characterization of the WIPP site.

  10. Beryllium and Graphite Neutron Total Cross-Section Measurements from 0.4 to 20 MeV

    E-Print Network [OSTI]

    Danon, Yaron

    . C. Block Bechtel Marine Propulsion Corporation Knolls Atomic Power Laboratory P.O. Box 1072- tion, Knolls Atomic Power Laboratory, P.O. Box 1072, Sche- nectady, New York 12301-1072 Current address. With a low atomic number and thermal absorption cross section, beryllium has ap- plications as both a neutron

  11. Thermal equation of state and thermodynamic Grüneisen parameter of beryllium metal

    SciTech Connect (OSTI)

    Zhang, Jianzhong, E-mail: jzhang@lanl.gov; Zhu, Jinlong [Los Alamos Neutron Science Center, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States); Velisavljevic, Nenad [Dynamic and Energetic Materials Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States); Wang, Liping; Zhao, Yusheng [High Pressure Science and Engineering Center and Department of Physics and Astronomy, University of Nevada, Las Vegas, Nevada 89154 (United States)

    2013-11-07

    We conducted in-situ high-pressure synchrotron x-ray experiments on beryllium metal at pressures up to 7.9?GPa and temperatures up to 1373?K. A complete pressure (P)–volume (V)–temperature (T) equation of state (EOS) is determined based on the experiment, which includes temperature derivatives of elastic bulk modulus (at both constant pressure and constant volume) and pressure dependence of thermal expansivity. From this EOS, we calculate thermal pressure, heat capacity at constant volume, and thermodynamic Grüneisen parameter as a function of temperature. Above ?600?K, our results show notable deviation from theoretical predictions using the quasiharmonic and local-density approximations, indicating that the free energy calculations need to be further improved within the current scheme of approximations.

  12. Solid Deuterium-Tritium Surface Roughness In A Beryllium Inertial Confinement Fusion Shell

    SciTech Connect (OSTI)

    Kozioziemski, B J; Sater, J D; Moody, J D; Montgomery, D S; Gautier, C

    2006-04-19

    Solid deuterium-tritium (D-T) fuel layers for inertial confinement fusion experiments were formed inside of a 2 mm diameter beryllium shell and were characterized using phase-contrast enhanced x-ray imaging. The solid D-T surface roughness is found to be 0.4 {micro}m for modes 7-128 at 1.5 K below the melting temperature. The layer roughness is found to increase with decreasing temperature, in agreement with previous visible light characterization studies. However, phase-contrast enhanced x-ray imaging provides a more robust surface roughness measurement than visible light methods. The new x-ray imaging results demonstrate clearly that the surface roughness decreases with time for solid D-T layers held at 1.5 K below the melting temperature.

  13. Ergonomic Evaluation for Office Workers Name: Date

    E-Print Network [OSTI]

    Slatton, Clint

    Ergonomic Evaluation for Office Workers Name: Date: Department: Campus Box #: Telephone Number: Fax Number: Building: Room Number: Email Address: Supervisor: Evaluation Date/Time: Symptoms : Respond

  14. Categorical Exclusion (CX) Determinations By Date | Department...

    Office of Environmental Management (EM)

    (CX) Determinations By Date Categorical Exclusion (CX) Determinations By Date August 25, 2015 CX-012469: Categorical Exclusion Determination Gas Analysis Services CX(s) Applied:...

  15. SU-E-T-602: Beryllium Seeds Implant for Photo-Neutron Yield Using External Beam Therapy

    SciTech Connect (OSTI)

    Koren, S; Veltchev, I; Furhang, E

    2014-06-01

    Purpose: To evaluate the Neutron yield obtained during prostate external beam irradiation. Methods: Neutrons, that are commonly a radiation safety concern for photon beams with energy above 10 MV, are induced inside a PTV from Beryllium implemented seeds. A high megavoltage photon beam delivered to a prostate will yield neutrons via the reaction Be-9(?,n)2?. Beryllium was chosen for its low gamma,n reaction cross-section threshold (1.67 MeV) to be combined with a high feasible 25 MV photon beam. This beam spectra has a most probable photon energy of 2.5 to 3.0 MeV and an average photon energy of about 5.8 MeV. For this feasibility study we simulated a Beryllium-made common seed dimension (0.1 cm diameter and 0.5 cm height) without taking into account encapsulation. We created a 0.5 cm grid loading pattern excluding the Urethra, using Variseed (Varian inc.) A total of 156 seeds were exported to a 4cm diameter prostate sphere, created in Fluka, a particle transport Monte Carlo Code. Two opposed 25 MV beams were simulated. The evaluation of the neutron dose was done by adjusting the simulated photon dose to a common prostate delivery (e.g. 7560 cGy in 42 fractions) and finding the corresponding neutron dose yield from the simulation. A variance reduction technique was conducted for the neutrons yield and transported. Results: An effective dose of 3.65 cGy due to neutrons was found in the prostate volume. The dose to central areas of the prostate was found to be about 10 cGy. Conclusion: The neutron dose yielded does not justify a clinical implant of Beryllium seeds. Nevertheless, one should investigate the Neutron dose obtained when a larger Beryllium loading is combined with commercially available 40 MeV Linacs.

  16. Date of Injury Date Time In Time Out

    E-Print Network [OSTI]

    : NORMAL Work Schedule (ie: MF, 8am5pm)First Name Last Name # of hours missed from work #12;RISK MGTDate of Injury Date Time In Time Out Total time worked medical appt no work within restrictions Next Medical Appointment(s): Tuesday of each week. Risk Mgt email: workcomp@colostate.edu; fax

  17. Do not write below this line ISSO Use Only ISSO Adviser || Date Received || Visa/Permit in Sage || Finances || Date sent to SEVIS/RTI || Date emailed

    E-Print Network [OSTI]

    Snider, Barry B.

    || Finances || Date sent to SEVIS/RTI || Date emailed International Students and Scholars Office| Academic

  18. 2014 NEJC Save the Date (Spanish)

    Broader source: Energy.gov [DOE]

    2014 National Environmental Justice Conference and Training Program Save the Date, March 26 to 28, 2014

  19. LABORATORY SAFETY CHECKLIST LABORATORY: DATE

    E-Print Network [OSTI]

    Fleming, Andrew J.

    LABORATORY SAFETY CHECKLIST LABORATORY: DATE: RESPONSIBLE OFFICER: INSPECTION BY: Boxes/A indicates the item does not apply to this laboratory. 1 HAZARD IDENTIFICATION /x/NA Comments 1 in the laboratory? 1.2 Are current copies available of: (a) permits for notifiable or prohibited carcinogens, (b

  20. Dated:

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    OR ALLEGED VIOLATIONS, FINES, AND PENALTIES, 3) ASSIGNMENT AND ADMINISTRATION OF CONTRACTS AND SUBCONTRACTS, 4) SMALL BUSINESS SUBCONTRACTING PLAN, 5) MATERIAL SAFETY DATA...

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    assistance actions, will be provided in a separate Acquisition LetterFinancial Assistance Letter (ALFAL). AL-2011-04 addresses the following provisions of the Energy and...

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    competitions. Word versions of the four templates will be available in the STRIPES Library. This Flash and its attachments will be available online within a day, at the...

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    Ed Mitchellzm SUBJECT: Elimination Recommendation for American Machine and Foundry in New York City The purpose of this note is to provide the following with respect to the...

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    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouth DakotaRobbins and Myers Co -VANaval ,, *' ;x-L*Qwner -RL5-

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    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouth DakotaRobbins and Myers Co -VANaval ,, *' ;x-L*Qwner -RL5-OOE F

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    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouth DakotaRobbins and700, 1. .&.Chupadera Mesa, NewAECr-tin13NnDa?

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  17. DATE

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  18. DATE

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  1. DATE

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  3. DATE

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  4. DATE

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  5. DATE

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  6. DATE

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  7. DATE

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  8. DATE

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  9. DATE

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  10. DATE

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  11. DATE

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  12. DATE

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  13. DATE

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  14. DATE

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  15. DATE

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  16. DATE

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  2. DATE

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  3. DATE

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  8. Date:

    Office of Legacy Management (LM)

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  9. DATE:

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  10. DATE:

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  11. Waste Isolation Pilot Plant No-Migration Variance Petition. Revision 1, Volume 1

    SciTech Connect (OSTI)

    Hunt, Arlen

    1990-03-01

    The purpose of the WIPP No-Migration Variance Petition is to demonstrate, according to the requirements of RCRA {section}3004(d) and 40 CFR {section}268.6, that to a reasonable degree of certainty, there will be no migration of hazardous constituents from the facility for as long as the wastes remain hazardous. The DOE submitted the petition to the EPA in March 1989. Upon completion of its initial review, the EPA provided to DOE a Notice of Deficiencies (NOD). DOE responded to the EPA`s NOD and met with the EPA`s reviewers of the petition several times during 1989. In August 1989, EPA requested that DOE submit significant additional information addressing a variety of topics including: waste characterization, ground water hydrology, geology and dissolution features, monitoring programs, the gas generation test program, and other aspects of the project. This additional information was provided to EPA in January 1990 when DOE submitted Revision 1 of the Addendum to the petition. For clarity and ease of review, this document includes all of these submittals, and the information has been updated where appropriate. This document is divided into the following sections: Introduction, 1.0: Facility Description, 2.0: Waste Description, 3.0; Site Characterization, 4.0; Environmental Impact Analysis, 5.0; Prediction and Assessment of Infrequent Events, 6.0; and References, 7.0.

  12. CIVIL & ENVIRONMENTAL ENGINEERING STUDENT PETITION to REMOVE REGISTRATION/RECORDS HOLDS

    E-Print Network [OSTI]

    CIVIL & ENVIRONMENTAL ENGINEERING STUDENT PETITION to REMOVE REGISTRATION/RECORDS HOLDS etc.) Total number of credits in major or minor program Degree 1 CEE Civil & Envr Engineering BSCE 180 Graduating Senior Priority (GSP) status. #12;CIVIL & ENVIRONMENTAL ENGINEERING Qtr: Year: Qtr: Year: Course

  13. THE UNIVERSITY OF OKLAHOMA PETITION FOR IN-STATE TUITION CLASSIFICATION

    E-Print Network [OSTI]

    Oklahoma, University of

    THE UNIVERSITY OF OKLAHOMA PETITION FOR IN-STATE TUITION CLASSIFICATION Office of Admissions 1000 from an Oklahoma high school? YES NO NAME AND LOCATION OF HIGH SCHOOL Have you attended a college or university in Oklahoma during the past two years? YES NO IF YES, COMPLETE AREA BELOW. LIST INSTITUTIONS

  14. PRINT ONLY: ASTROBIOLOGY Horner J. Mousis O. Petit J.-M. Jones B. W.

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Regimes of the Terrestrial Planets [#1179] We present detailed results on the similarities and differences by kinetic and thermodynamic equilibrium modeling studies, are in stark contrast to the chemically pure ALH THE IMPACT REGIMES OF THE TERRESTRIAL PLANETS. J. Horner1 , O. Mousis2,3 , J.-M. Petit3 , and B. W. Jones1

  15. ORALLOY (93.2 235U) METAL CYLINDER WITH BERYLLIUM TOP REFLECTOR

    SciTech Connect (OSTI)

    John D. Bess; Leland M. Montierth; Raymond Reed; John T. Mihalczo

    2010-09-01

    A variety of critical experiments were constructed of enriched uranium metal during the 1960s and 1970s at the Oak Ridge Critical Experiments Facility (ORCEF) in support of criticality safety operations at the Y-12 Plant. The purposes of these experiments included the evaluation of storage, casting, and handling limits for the Y-12 Plant and providing data for verification of calculation methods and cross-sections for nuclear criticality safety applications. These included solid cylinders of various diameters, annuli of various inner and outer diameters, two and three interacting cylinders of various diameters, and graphite and polyethylene reflected cylinders and annuli. Of the hundreds of delayed critical experiments, one experiment was comprised of a stack of approximately 7-inch-diameter metal discs. The bottom of the stack consisted of uranium with an approximate height of 4-1/8 inches. The top of the stack consisted of beryllium with an approximate height of 5-9/16 inches. This experiment was performed on August 20, 1963 by J. T. Mihalczo and R. G. Taylor (Ref. 1) with accompanying logbook. Both detailed and simplified model specifications are provided in this evaluation. This fast-spectra experiment was determined to represent an acceptable benchmark. The calculated eigenvalues for both the detailed and simple models are within approximately 0.5% of the benchmark values, but significantly greater than 3s from the benchmark value because the uncertainty in the benchmark is very small: ±0.0002 (1s). There is significant variability between results using different neutron cross section libraries, the greatest being a ?keff of ~0.65% . Unreflected and unmoderated experiments with the same highly enriched uranium metal parts were performed at the Oak Ridge Critical Experiments Facility in the 1960s and are evaluated in HEU MET FAST 051. Thin graphite reflected (2 inches or less) experiments also using the same highly enriched uranium metal parts are evaluated in HEU MET FAST 071. Polyethylene-reflected configurations are evaluated in HEU-MET-FAST-076. Highly enriched metal annuli with beryllium cores are evaluated in HEU-MET-FAST-059.

  16. ORALLOY (93.15 235U) METAL ANNULI WITH BERYLLIUM CORE

    SciTech Connect (OSTI)

    John D. Bess; Leland M. Montierth; Raymond L. Reed; John T. Mihalczo

    2010-09-01

    A variety of critical experiments were constructed of enriched uranium metal during the 1960s and 1970s at the Oak Ridge Critical Experiments Facility (ORCEF) in support of criticality safety operations at the Y-12 Plant. The purposes of these experiments included the evaluation of storage, casting, and handling limits for the Y-12 Plant and providing data for verification of calculation methods and cross-sections for nuclear criticality safety applications. These included solid cylinders of various diameters, annuli of various inner and outer diameters, two and three interacting cylinders of various diameters, and graphite and polyethylene reflected cylinders and annuli. Of the hundreds of delayed critical experiments, two were performed that consisted of uranium metal annuli with a solid beryllium metal core. The outer diameter of the annuli was approximately 13 or 15 inches with an inner diameter of 7 inches. The diameter of the core was approximately 7 inches. The critical height of the configurations was approximately 5 and 4 inches, respectively. The uranium annuli consisted of multiple stacked rings with diametral thicknesses of approximately 2 inches apiece and varying heights. The 15-inch experiment was performed on June 4, 1963, and the 13-inch experiment on July 12, 1963 by J. T. Mihalczo and R. G. Taylor (Ref. 1) with accompanying logbook. Both detailed and simplified model specifications are provided in this evaluation. Both of these fast-spectra experiments were determined to represent acceptable benchmarks. The calculated eigenvalues for both the detailed and simple models are within approximately 0.6% of the benchmark values, but significantly greater than 3s from the benchmark value because the uncertainty in the benchmark is very small: <±0.0004 (1s). There is significant variability between results using different neutron cross section libraries, the greatest being a ?keff of ~0.67%. Unreflected and unmoderated experiments with the same highly enriched uranium metal parts were performed at the Oak Ridge Critical Experiments Facility in the 1960s and are evaluated in HEU MET FAST 051. Thin graphite reflected (2 inches or less) experiments also using the same highly enriched uranium metal parts are evaluated in HEU MET FAST 071. Polyethylene-reflected configurations are evaluated in HEU-MET-FAST-076. A stack of highly enriched metal discs with a thick beryllium reflector is evaluated in HEU-MET-FAST-069.

  17. A Comparison of "Total Dust" and Inhalable Personal Sampling for Beryllium Exposure.

    SciTech Connect (OSTI)

    Carter, C M

    2012-04-25

    In 2009, the American Conference of Governmental Industrial Hygienists (ACGIH) reduced the Beryllium (Be) 8-hr Time Weighted Average Threshold Limit Value (TLV-TWA) from 2.0 {micro}g/m{sup 3} to 0.05 {micro}g/m{sup 3} with an inhalable 'I' designation in accordance with ACGIH's particle size-selective criterion for inhalable mass. Currently, per the Department of Energy (DOE) requirements, the Lawrence Livermore National Laboratory (LLNL) is following the Occupational Health and Safety Administration (OSHA) Permissible Exposure Limit (PEL) of 2.0 {micro}g/m{sup 3} as an 8-hr TWA, which is also the 2005 ACGIH TLV-TWA, and an Action Level (AL) of 0.2 {micro}g/m{sup 3} and sampling is performed using the 37mm (total dust) sampling method. Since DOE is considering adopting the newer 2009 TLV guidelines, the goal of this study was to determine if the current method of sampling using the 37mm (total dust) sampler would produce results that are comparable to what would be measured using the IOM (inhalable) sampler specific to the application of high energy explosive work at LLNL's remote experimental test facility at Site 300. Side-by-side personal sampling using the two samplers was performed over an approximately two-week period during chamber re-entry and cleanup procedures following detonation of an explosive assembly containing Beryllium (Be). The average ratio of personal sampling results for the IOM (inhalable) vs. 37-mm (total dust) sampler was 1.1:1 with a P-value of 0.62, indicating that there was no statistically significant difference in the performance of the two samplers. Therefore, for the type of activity monitored during this study, the 37-mm sampling cassette would be considered a suitable alternative to the IOM sampler for collecting inhalable particulate matter, which is important given the many practical and economic advantages that it presents. However, similar comparison studies would be necessary for this conclusion to be applied to other types of activities, where earlier studies have shown that the IOM sampler tends to collect higher concentrations of Be compared to the 37-mm cassette, which could complicate compliance with what is already an extremely low exposure limit.

  18. The use of a beryllium Hopkinson bar to characterize in-axis and cross-axis accelerometer response in shock environments

    SciTech Connect (OSTI)

    Bateman, V.I.; Brown, F.A.

    1997-05-01

    The characteristics of a piezoresistive accelerometer in shock environments are being studied at Sandia National Laboratories in the Mechanical Shock Testing Laboratory. A beryllium Hopkinson bar capability has been developed to extend the understanding of the piezoresistive accelerometer, in two mechanical configurations and with and without mechanical isolation, in the high frequency, high shock environments where measurements are being made. In this paper, recent measurements with beryllium single and split-Hopkinson bar configurations are described. The in axis performance of the piezoresistive accelerometer in mechanical isolation for frequencies of dc-30 kHz and shock magnitudes of up to 6,000 g as determined from measurements with a beryllium Hopkinson bar with a certified laser doppler vibrometer as the reference measurement are presented. Results of characterizations of the accelerometers subjected to cross axis shocks in a split beryllium Hopkinson bar configuration are also presented.

  19. Optimized beryllium target design for indirectly driven inertial confinement fusion experiments on the National Ignition Facility

    SciTech Connect (OSTI)

    Simakov, Andrei N., E-mail: simakov@lanl.gov; Wilson, Douglas C.; Yi, Sunghwan A.; Kline, John L.; Batha, Steven H. [Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545 (United States)] [Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545 (United States); Clark, Daniel S.; Milovich, Jose L.; Salmonson, Jay D. [Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551 (United States)] [Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551 (United States)

    2014-02-15

    For indirect drive inertial confinement fusion, Beryllium (Be) ablators offer a number of important advantages as compared with other ablator materials, e.g., plastic and high density carbon. In particular, the low opacity and relatively high density of Be lead to higher rocket efficiencies giving a higher fuel implosion velocity for a given X-ray drive; and to higher ablation velocities providing more ablative stabilization and reducing the effect of hydrodynamic instabilities on the implosion performance. Be ablator advantages provide a larger target design optimization space and can significantly improve the National Ignition Facility (NIF) [J. D. Lindl et al., Phys. Plasmas 11, 339 (2004)] ignition margin. Herein, we summarize the Be advantages, briefly review NIF Be target history, and present a modern, optimized, low adiabat, Revision 6 NIF Be target design. This design takes advantage of knowledge gained from recent NIF experiments, including more realistic levels of laser-plasma energy backscatter, degraded hohlraum-capsule coupling, and the presence of cross-beam energy transfer.

  20. Electron transport properties of bis[2-(2-hydroxyphenyl)-pyridine]beryllium investigated by impedance spectroscopy

    SciTech Connect (OSTI)

    Wang, Yanping; Chen, Jiangshan; Huang, Jinying; Ma, Dongge, E-mail: mdg1014@ciac.jl.cn, E-mail: dongls@ciac.jl.cn [State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Changchun 130022 (China); Dong, Lisong, E-mail: mdg1014@ciac.jl.cn, E-mail: dongls@ciac.jl.cn [Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Changchun 130022 (China); Chen, Hui [Department of Science, Shenyang University of Chemical Technology, Shenyang 110142 (China)

    2014-06-14

    The electron transport properties of bis[2-(2-hydroxyphenyl)-pyridine] beryllium (Bepp{sub 2}) are investigated by impedance spectroscopy over a frequency range of 10?Hz to 13?MHz. The Cole-Cole plots demonstrate that the Bepp{sub 2}-based device can be represented by a single parallel resistance R{sub p} and capacitance C{sub p} network with a series resistance R{sub s}. The current-voltage characteristics and the variation of R{sub p} with applied bias voltage indicate the electron conduction of space-charge-limited current with exponential trap distributions in Bepp{sub 2}. It can be seen that the electron mobility exhibits strong field-dependence in low electric field region and almost saturate in high electric field region. It is experimentally found that Bepp{sub 2} shows dispersion transport and becomes weak as the electric field increases. The activation energy is determined to be 0.043?eV by temperature-dependent conductivity, which is consistent with the result obtained from the temperature-dependent current density characteristics. The electron mobility reaches the orders of 10{sup ?6}–10{sup ?5} cm{sup 2} V{sup ?1} s{sup ?1}, depending on the electric field.

  1. Measurement of neutron yield by 62 MeV proton beam on a thick Beryllium target

    E-Print Network [OSTI]

    M. Osipenko; M. Ripani; R. Alba; G. Ricco; M. Barbagallo; P. Boccaccio; A. Celentano; N. Colonna; L. Cosentino; A. Del Zoppo; A. Di Pietro; J. Esposito; P. Figuera; P. Finocchiaro; A. Kostyukov; C. Maiolino; D. Santonocito; M. Schillaci; V. Scuderi; C. M. Viberti

    2013-06-28

    The design of a low-power prototype of neutron amplifier recently proposed within the INFN-E project indicated the need for more accurate called for detailed data on the neutron yield produced by a proton beam with energy of about 70 MeV impinging on a thick Beryllium target. Such measurement was performed at the LNS superconducting cyclotron, covering a wide angular range from 0 to 150 degrees and a complete neutron energy interval from thermal to beam energy. Neutrons with energy above 0.5 MeV were measured by liquid scintillators exploiting their Time of Flight to determine the kinetic energy. For lower energy neutrons, down to thermal energy, a $^3$He detector was used. The obtained data are in good agreement with previous measurements at 0 degree with 66 MeV proton beam, covering neutron energies >10 MeV, as well as with measurements at few selected angles with protons of 46, 55 and 113 MeV energy. The present results extend the neutron yield data in the 60-70 MeV beam energy range. A comparison of measured yields to MCNP and Geant4 Monte Carlo simulations was performed.

  2. Design, manufacture and initial operation of the beryllium components of the JET ITER-like wall

    E-Print Network [OSTI]

    Riccardo, V; Matthews, G F; Nunes, I; Thompson, V; Villedieu, E; Contributors, JET EFDA

    2013-01-01

    The aim of the JET ITER-like Wall Project was to provide JET with the plasma facing material combination now selected for the DT phase of ITER (bulk beryllium main chamber limiters and a full tungsten divertor) and, in conjunction with the upgraded neutral beam heating system, to achieve ITER relevant conditions. The design of the bulk Be plasma facing components had to be compatible with increased heating power and pulse length, as well as to reuse the existing tile supports originally designed to cope with disruption loads from carbon based tiles and be installed by remote handling. Risk reduction measures (prototypes, jigs, etc) were implemented to maximize efficiency during the shutdown. However, a large number of clashes with existing components not fully captured by the configuration model occurred. Restarting the plasma on the ITER-like Wall proved much easier than for the carbon wall and no deconditioning by disruptions was observed. Disruptions have been more threatening than expected due to the redu...

  3. The Irradiation Origin of Beryllium Radioisotopes and Other Short-lived Radionuclides

    E-Print Network [OSTI]

    Matthieu Gounelle; Frank H. Shu; Hsien Shang; A. E. Glassgold; K. E. Rehm; Typhoon Lee

    2005-12-21

    Two explanations exist for the short-lived radionuclides present in the solar system when the CAIs first formed. They originated either from the ejecta of a supernova or by the in situ irradiation of nebular dust by energetic particles. With a half-life of only 53 days, Beryllium-7 is then the key discriminant, since it can be made only by irradiation. We calculate the yield of Be-7. Within model uncertainties associated mainly with nuclear cross sections, we obtain agreement with the experimental value. Moreover, if Be-7 and Be-10 have the same origin, the irradiation time must be short. The x-wind model provides a natural astrophysical setting that gives the requisite conditions. The decoupling of the Al-26 and Be-10 observed in some rare CAIs receives a quantitative explanation when rare gradual events are considered. Finally, we show that the presence of supernova-produced Fe-60 in the solar accretion disk does not necessarily mean that other short-lived radionuclides have a stellar origin.

  4. 2014-06-23 Issuance: Energy Conservation Standards for Walk-in Coolers and Freezers; Air-Conditioning, Heating, & Refrigeration Institute Petition for Reconsideration

    Office of Energy Efficiency and Renewable Energy (EERE)

    This document is the agency response to the Energy Conservation Standards for Walk-in Coolers and Freezers; Air-Conditioning, Heating, & Refrigeration Institute Petition for Reconsideration.

  5. Massachusetts Beryllium Screening Program for Former Workers of Wyman-Gordon, Norton Abrasives, and MIT/Nuclear Metals

    SciTech Connect (OSTI)

    Pepper, L.D.

    2008-05-21

    The overall objective of this project was to provide medical screening to former workers of Wyman-Gordon Company, Norton Abrasives, and MIT/Nuclear Metals (NMI) in order to prevent and minimize the health impact of diseases caused by site related workplace exposures to beryllium. The program was developed in response to a request by the U.S. Department of Energy (DOE) that had been authorized by Congress in Section 3162 of the 1993 Defense Authorization Act, urging the DOE to â??carry out a program for the identification and ongoing evaluation of current and former DOE employees who are subjected to significant health risks during such employment." This program, funded by the DOE, was an amendment to the medical surveillance program for former DOE workers at the Nevada Test Site (NTS). This programâ??s scope included workers who had worked for organizations that provided beryllium products or materials to the DOE as part of their nuclear weapons program. These organizations have been identified as Beryllium Vendors.

  6. Is beryllium ultra-depletion in solar-type stars linked to the presence of a white dwarf companion?

    E-Print Network [OSTI]

    Desidera, S; Lugaro, M

    2015-01-01

    Abundance studies of solar-type stars revealed a small fraction of objects with extreme depletion of beryllium. We investigate the possible link between the beryllium depletion and the presence of companions. The classical methods (radial velocity, astrometry, imaging) used to search for binary companions were exploited. We also performed a chemical analysis to identify binaries by the alteration in abundances that is produced by the accretion of material lost by a former evolved companion. We found that all the four previously investigated stars that were found to be ultra--depleted in Be are binaries. In two cases the companion is a white dwarf, and in the other two cases the companion might be a white dwarf or a main-sequence star. One new barium star was identified. We speculate that the interaction with the white dwarf progenitor caused an alteration in the abundance pattern of the star, which resulted in severe beryllium depletion. Possible mechanisms such as thermohaline mixing, episodic accretion, and...

  7. Date Received in Hall:_____________ Received by: ____________

    E-Print Network [OSTI]

    Thomas, David D.

    Additional Comments Include buyout information Include assumption information Deferred If Applicable Central HRL ________________________ _____ Signature Date Additional Comments Include buyout information

  8. Dates Fact Sheet.cdr

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based| Department8, 20153Daniel Boff About UsWork forAuditDepartment'sDATES is a

  9. Dynamic response of materials on subnanosecond time scales, and beryllium properties for inertial confinement fusion

    SciTech Connect (OSTI)

    Swift, Damian C.; Tierney, Thomas E.; Luo Shengnian; Paisley, Dennis L.; Kyrala, George A.; Hauer, Allan; Greenfield, Scott R.; Koskelo, Aaron C.; McClellan, Kenneth J.; Lorenzana, Hector E.; Kalantar, Daniel; Remington, Bruce A.; Peralta, Pedro; Loomis, Eric

    2005-05-15

    During the past few years, substantial progress has been made in developing experimental techniques capable of investigating the response of materials to dynamic loading on nanosecond time scales and shorter, with multiple diagnostics probing different aspects of the behavior. These relatively short time scales are scientifically interesting because plastic flow and phase changes in common materials with simple crystal structures--such as iron--may be suppressed, allowing unusual states to be induced and the dynamics of plasticity and polymorphism to be explored. Loading by laser-induced ablation can be particularly convenient: this technique has been used to impart shocks and isentropic compression waves from {approx}1 to 200 GPa in a range of elements and alloys, with diagnostics including line imaging surface velocimetry, surface displacement (framed area imaging), x-ray diffraction (single crystal and polycrystal), ellipsometry, and Raman spectroscopy. A major motivation has been the study of the properties of beryllium under conditions relevant to the fuel capsule in inertial confinement fusion: magnetically driven shock and isentropic compression shots at Z were used to investigate the equation of state and shock melting characteristics, complemented by laser ablation experiments to investigate plasticity and heterogeneous response from the polycrystalline microstructure. These results will help to constrain acceptable tolerances on manufacturing, and possible loading paths, for inertial fusion ignition experiments at the National Ignition Facility. Laser-based techniques are being developed further for future material dynamics experiments, where it should be possible to obtain high quality data on strength and phase changes up to at least 1 TPa.

  10. Spectroscopic accuracy directly from quantum chemistry: Application to ground and excited states of beryllium dimer

    SciTech Connect (OSTI)

    Sharma, Sandeep; Booth, George H.; Chan, Garnet Kin-Lic, E-mail: gkc1000@gmail.com [Department of Chemistry, Frick Laboratory, Princeton University, New Jersey 08544 (United States); Yanai, Takeshi [Department of Theoretical and Computational Molecular Science, Institute for Molecular Science, Okazaki, Aichi 444-8585 (Japan)] [Department of Theoretical and Computational Molecular Science, Institute for Molecular Science, Okazaki, Aichi 444-8585 (Japan); Umrigar, C. J. [Laboratory of Atomic and Solid State Physics, Cornell University, New York 14853 (United States)] [Laboratory of Atomic and Solid State Physics, Cornell University, New York 14853 (United States)

    2014-03-14

    We combine explicit correlation via the canonical transcorrelation approach with the density matrix renormalization group and initiator full configuration interaction quantum Monte Carlo methods to compute a near-exact beryllium dimer curve, without the use of composite methods. In particular, our direct density matrix renormalization group calculations produce a well-depth of D{sub e} = 931.2 cm{sup ?1} which agrees very well with recent experimentally derived estimates D{sub e} = 929.7±2 cm{sup ?1} [J. M. Merritt, V. E. Bondybey, and M. C. Heaven, Science 324, 1548 (2009)] and D{sub e}= 934.6 cm{sup ?1} [K. Patkowski, V. Špirko, and K. Szalewicz, Science 326, 1382 (2009)], as well the best composite theoretical estimates, D{sub e} = 938±15 cm{sup ?1} [K. Patkowski, R. Podeszwa, and K. Szalewicz, J. Phys. Chem. A 111, 12822 (2007)] and D{sub e}=935.1±10 cm{sup ?1} [J. Koput, Phys. Chem. Chem. Phys. 13, 20311 (2011)]. Our results suggest possible inaccuracies in the functional form of the potential used at shorter bond lengths to fit the experimental data [J. M. Merritt, V. E. Bondybey, and M. C. Heaven, Science 324, 1548 (2009)]. With the density matrix renormalization group we also compute near-exact vertical excitation energies at the equilibrium geometry. These provide non-trivial benchmarks for quantum chemical methods for excited states, and illustrate the surprisingly large error that remains for 1 {sup 1}?{sub g}{sup ?} state with approximate multi-reference configuration interaction and equation-of-motion coupled cluster methods. Overall, we demonstrate that explicitly correlated density matrix renormalization group and initiator full configuration interaction quantum Monte Carlo methods allow us to fully converge to the basis set and correlation limit of the non-relativistic Schrödinger equation in small molecules.

  11. Estimating Entropy of Liquids from Atom-Atom Radial Distribution Functions: Silica, Beryllium Fluoride and Water

    E-Print Network [OSTI]

    Ruchi Sharma; Manish Agarwal; Charusita Chakravarty

    2008-09-24

    Molecular dynamics simulations of water, liquid beryllium fluoride and silica melt are used to study the accuracy with which the entropy of ionic and molecular liquids can be estimated from atom-atom radial distribution function data. All three systems are known to display similar liquid-state thermodynamic and kinetic anomalies due to a region of anomalous excess entropy behaviour where entropy rises on isothermal compression. The pair correlation entropy is demonstrated to be sufficiently accurate that the density-temperature regime of anomalous behaviour as well as the strength of the entropy anomaly can be predicted reliably for both ionic melts as well as different rigid-body pair potentials for water. Errors in the total thermodynamic entropy for ionic melts due to the pair correlation approximation are of the order of 10% or less for most state points but can be significantly larger in the anomalous regime at very low temperatures. In the case of water, as expected given the rigid-body constraints for a molecular liquids, the pair correlation approximation causes significantly larger errors, between 20 and 30%, for most state points. Comparison of the excess entropy, Se, of ionic melts with the pair correlation entropy, S2, shows that the temperature dependence of Se is well described by T ??2=5 scaling across both the normal and anomalous regimes, unlike in the case of S2. As a function of density, the Se(rho) curves shows only a single maximum while the S2(rho) curves show both a maximum and a minimum. These differences in the behaviour of S2 and Se are due to the fact that the residual multiparticle entropy, delta(S) = Se - S2, shows a strong negative correlation with tetrahedral order in the anomalous regime.

  12. Beryllium liner implosion experiments on the Z accelerator in preparation for magnetized liner inertial fusion

    SciTech Connect (OSTI)

    McBride, R. D.; Martin, M. R.; Lemke, R. W.; Jennings, C. A.; Rovang, D. C.; Sinars, D. B.; Cuneo, M. E.; Herrmann, M. C.; Slutz, S. A.; Nakhleh, C. W.; Davis, J.-P.; Flicker, D. G.; Rogers, T. J.; Robertson, G. K.; Kamm, R. J.; Smith, I. C.; Savage, M.; Stygar, W. A.; Rochau, G. A.; Jones, M. [Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)] [Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States); and others

    2013-05-15

    Multiple experimental campaigns have been executed to study the implosions of initially solid beryllium (Be) liners (tubes) on the Z pulsed-power accelerator. The implosions were driven by current pulses that rose from 0 to 20 MA in either 100 or 200 ns (200 ns for pulse shaping experiments). These studies were conducted in support of the recently proposed Magnetized Liner Inertial Fusion concept [Slutz et al., Phys. Plasmas 17, 056303 (2010)], as well as for exploring novel equation-of-state measurement techniques. The experiments used thick-walled liners that had an aspect ratio (initial outer radius divided by initial wall thickness) of either 3.2, 4, or 6. From these studies, we present three new primary results. First, we present radiographic images of imploding Be liners, where each liner contained a thin aluminum sleeve for enhancing the contrast and visibility of the liner's inner surface in the images. These images allow us to assess the stability of the liner's inner surface more accurately and more directly than was previously possible. Second, we present radiographic images taken early in the implosion (prior to any motion of the liner's inner surface) of a shockwave propagating radially inward through the liner wall. Radial mass density profiles from these shock compression experiments are contrasted with profiles from experiments where the Z accelerator's pulse shaping capabilities were used to achieve shockless (“quasi-isentropic”) liner compression. Third, we present “micro-B-dot ” measurements of azimuthal magnetic field penetration into the initially vacuum-filled interior of a shocked liner. Our measurements and simulations reveal that the penetration commences shortly after the shockwave breaks out from the liner's inner surface. The field then accelerates this low-density “precursor” plasma to the axis of symmetry.

  13. Beryllium in the Hyades F and G Dwarfs from Keck/HIRES Spectra

    E-Print Network [OSTI]

    Ann Merchant Boesgaard; Jeremy R. King

    2001-09-18

    Beryllium is not destroyed as easily as Li, so the abundances of Li and Be together can tell us more about the internal physical processes in stars than either element can alone. We have obtained high-resolution (45,000) and high signal-to-noise (typically 90 per pixel) spectra of the Be II resonance lines in 34 Hyades F and G dwarfs with the Keck I telescope and HIRES. The Be abundances have been derived with the spectrum synthesis method. We find that Be is depleted in the Li gap in the F stars reaching down to values of A(Be) = 0.60, or a factor of nearly seven below the meteoritic Be abundance. There is little or no depletion of Be in stars cooler than 6000 K, in spite of the large depletions (0.5 - 2.5 dex) in Li. The mean value of A(Be) for the ten coolest stars is 1.33 +/- 0.06, not far from the meteoritic value of 1.42. The pattern in the Be abundances - a Be dip in the F stars and undepleted Be in the cool stars - is well matched by the predictions of slow mixing due to stellar rotation (e.g. Deliyannis and Pinsonneault). The depletions of Li and Be probably occur simultaneously. The Li and Be abundances are correlated for stars in the temperature range of 5850 - 6680 K, similar to results from earlier work on Li and Be in F and G field stars. The Hyades G dwarfs have more Be than the sun; their initial Be may have been larger or they may not be old enough to have depleted Be. For those Hyades stars which appear to have little or no depletion of Li or Be, the Li/Be ratio is found to be 75 +/- 30. (abridged)

  14. Waste Isolation Pilot Plant no-migration variance petition. Executive summary

    SciTech Connect (OSTI)

    Not Available

    1990-12-31

    Section 3004 of RCRA allows EPA to grant a variance from the land disposal restrictions when a demonstration can be made that, to a reasonable degree of certainty, there will be no migration of hazardous constituents from the disposal unit for as long as the waste remains hazardous. Specific requirements for making this demonstration are found in 40 CFR 268.6, and EPA has published a draft guidance document to assist petitioners in preparing a variance request. Throughout the course of preparing this petition, technical staff from DOE, EPA, and their contractors have met frequently to discuss and attempt to resolve issues specific to radioactive mixed waste and the WIPP facility. The DOE believes it meets or exceeds all requirements set forth for making a successful ``no-migration`` demonstration. The petition presents information under five general headings: (1) waste information; (2) site characterization; (3) facility information; (4) assessment of environmental impacts, including the results of waste mobility modeling; and (5) analysis of uncertainties. Additional background and supporting documentation is contained in the 15 appendices to the petition, as well as in an extensive addendum published in October 1989.

  15. VALIDATION OF ANALYTICAL METHODS AND INSTRUMENTATION FOR BERYLLIUM MEASUREMENT: REVIEW AND SUMMARY OF AVAILABLE GUIDES, PROCEDURES, AND PROTOCOLS

    SciTech Connect (OSTI)

    Ekechukwu, A

    2009-05-27

    Method validation is the process of evaluating whether an analytical method is acceptable for its intended purpose. For pharmaceutical methods, guidelines from the United States Pharmacopeia (USP), International Conference on Harmonisation (ICH), and the United States Food and Drug Administration (USFDA) provide a framework for performing such valications. In general, methods for regulatory compliance must include studies on specificity, linearity, accuracy, precision, range, detection limit, quantitation limit, and robustness. Elements of these guidelines are readily adapted to the issue of validation for beryllium sampling and analysis. This document provides a listing of available sources which can be used to validate analytical methods and/or instrumentation for beryllium determination. A literature review was conducted of available standard methods and publications used for method validation and/or quality control. A comprehensive listing of the articles, papers and books reviewed is given in the Appendix. Available validation documents and guides are listed therein; each has a brief description of application and use. In the referenced sources, there are varying approches to validation and varying descriptions of the valication process at different stages in method development. This discussion focuses on valication and verification of fully developed methods and instrumentation that have been offered up for use or approval by other laboratories or official consensus bodies such as ASTM International, the International Standards Organization (ISO) and the Association of Official Analytical Chemists (AOAC). This review was conducted as part of a collaborative effort to investigate and improve the state of validation for measuring beryllium in the workplace and the environment. Documents and publications from the United States and Europe are included. Unless otherwise specified, all referenced documents were published in English.

  16. Predicting the sensitivity of the beryllium/scintillator layer neutron detector using Monte Carlo and experimental response functions

    SciTech Connect (OSTI)

    Styron, J. D., E-mail: jdstyro@sandia.gov; Cooper, G. W.; Carpenter, Ken; Bonura, M. A. [Department of Nuclear Engineering, University of New Mexico, Albuquerque, New Mexico 87131 (United States); Ruiz, C. L.; Hahn, K. D.; Chandler, G. A.; Nelson, A. J.; Torres, J. A.; McWatters, B. R. [Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)

    2014-11-15

    A methodology for obtaining empirical curves relating absolute measured scintillation light output to beta energy deposited is presented. Output signals were measured from thin plastic scintillator using NIST traceable beta and gamma sources and MCNP5 was used to model the energy deposition from each source. Combining the experimental and calculated results gives the desired empirical relationships. To validate, the sensitivity of a beryllium/scintillator-layer neutron activation detector was predicted and then exposed to a known neutron fluence from a Deuterium-Deuterium fusion plasma (DD). The predicted and the measured sensitivity were in statistical agreement.

  17. Version Date: July 2012 COPYRIGHT & TRADEMARKS

    E-Print Network [OSTI]

    WEB Clock Version Date: July 2012 #12;COPYRIGHT & TRADEMARKS Copyright © 1998, 2011, Oracle and Guide WEB Clock Page iii Table of Contents WEB Clock ........................................................................................................................ 1 WEB Clock Procedure

  18. Early Admission Supplemental Application Page 1 Date ________________

    E-Print Network [OSTI]

    Fernandez, Eduardo

    Early Admission Supplemental Application Page 1 Date ________________ Student Name Admission Supplemental Application Page 2 Supplemental Information for Early Admission Student Statement

  19. COLLOQUIUM: NOTE SPECIAL DATE - THURSDAY: Unique Vulnerability...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    MBG Auditorium COLLOQUIUM: NOTE SPECIAL DATE - THURSDAY: Unique Vulnerability of the New YorkNew Jersey Metro Region to Hurricane Destruction - A New Perspective Based on...

  20. High Precision Radiometric Dating of Sedimentary Materials

    SciTech Connect (OSTI)

    Hanson, G. N.

    2006-09-19

    To develop field, petrographic and geochemical criteria to allow high precision U-Pb dating of sedimentary minerals within rapidly deposited sequences of carbonate and clastic rocks.

  1. VALIDATION OF ANALYTICAL METHODS AND INSTRUMENTATION FOR BERYLLIUM MEASUREMENT: REVIEW AND SUMMARY OF AVAILABLE GUIDES, PROCEDURES, AND PROTOCOLS

    SciTech Connect (OSTI)

    Ekechukwu, A.

    2008-12-17

    This document proposes to provide a listing of available sources which can be used to validate analytical methods and/or instrumentation for beryllium determination. A literature review was conducted of available standard methods and publications used for method validation and/or quality control. A comprehensive listing of the articles, papers, and books reviewed is given in Appendix 1. Available validation documents and guides are listed in the appendix; each has a brief description of application and use. In the referenced sources, there are varying approaches to validation and varying descriptions of validation at different stages in method development. This discussion focuses on validation and verification of fully developed methods and instrumentation that have been offered up for use or approval by other laboratories or official consensus bodies such as ASTM International, the International Standards Organization (ISO) and the Association of Official Analytical Chemists (AOAC). This review was conducted as part of a collaborative effort to investigate and improve the state of validation for measuring beryllium in the workplace and the environment. Documents and publications from the United States and Europe are included. Unless otherwise specified, all documents were published in English.

  2. NO. REV. NO. Systems Division DATE

    E-Print Network [OSTI]

    Rathbun, Julie A.

    of the EASE-PSEP Solar Panel Array~PA::G:,:E:..::=l=~o:F~=2=7= DATE 20 Nov. 1968 1. 0 SUMMARY Electrical power-~ NO. REV. NO. EATM-15 PAGE OF ~ Systems Division DATE EASEP /PSEP Solar Panel Development Design+"'--.:L'_;;;J....;::::::..··-=·~::!!:!!!e::...._ K. Hsi #12;NO. REV. NO. EATM-15 EASEP/PSEP Solar Panel Development ~ Systems Division Design

  3. Phoenix dactylifera is a date palm cultivated for its edible sweet fruit known as dates. Dates have been a staple food of the Middle East and parts

    E-Print Network [OSTI]

    Shlizerman, Eli

    Phoenix dactylifera is a date palm cultivated for its edible sweet fruit known as dates. Dates have m P l a n t Phoenix dactylifera Phoenix dactylifera #12;2 My hands were cold and raw from digging

  4. No-migration variance petition for the Waste Isolation Pilot Plant

    SciTech Connect (OSTI)

    Carnes, R.G.; Hart, J.S. ); Knudtsen, K. )

    1990-01-01

    The Waste Isolation Pilot Plant (WIPP) is a US Department of Energy (DOE) project to provide a research and development facility to demonstrate the safe disposal of radioactive waste resulting from US defense activities and programs. The DOE is developing the WIPP facility as a deep geologic repository in bedded salt for transuranic (TRU) waste currently stored at or generated by DOE defense installations. Approximately 60 percent of the wastes proposed to be emplaced in the WIPP are radioactive mixed wastes. Because such mixed wastes contain a hazardous chemical component, the WIPP is subject to requirements of the Resource Conservation and Recovery Act (RCRA). In 1984 Congress amended the RCRA with passage of the Hazardous and Solid Waste Amendments (HSWA), which established a stringent regulatory program to prohibit the land disposal of hazardous waste unless (1) the waste is treated to meet treatment standards or other requirements established by the Environmental Protection Agency (EPA) under {section}3004(n), or (2) the EPA determines that compliance with the land disposal restrictions is not required in order to protect human health and the environment. The DOE WIPP Project Office has prepared and submitted to the EPA a no-migration variance petition for the WIPP facility. The purpose of the petition is to demonstrate, according to the requirements of RCRA {section}3004(d) and 40 CFR {section}268.6, that to a reasonable degree of certainty, there will be no migration of hazardous constituents from the WIPP facility for as long as the wastes remain hazardous. This paper provides an overview of the petition and describes the EPA review process, including key issues that have emerged during the review. 5 refs.

  5. The Use of a Beryllium Hopkinson Bar to Characterize In-Axis and Cross-Axis Accelerometer Response in Shock Environments

    SciTech Connect (OSTI)

    Bateman, V.I.; Brown, F.A.

    1999-01-01

    The characteristics of a piezoresistive accelerometer in shock environments have been studied at Sandia National Laboratories in the Mechanical Shock Laboratory. A beryllium Hopkinson bar capability with diameters of 0.75 in. and 2.0 in has been developed to extend our understanding of the piezoresistive accelerometer, in two mechanical configurations, in the high frequency, high shock environments where measurements are being made. The in-axis performance of the piezoresistive accelerometer determined from measurements with a beryllium Hopkinson bar and a certified laser doppler vibrometer as the reference measurement is presented. The cross-axis performance of the accelerometer subjected to static compression on a beryllium cylinder, static strain on a steel beam, dynamic strain on a steel beam (ISA-RP 37.2, Paragraph 6.6), and compressive shocks in a split beryllium Hopkinson bar configuration is also presented. The performance of the accelerometer in a combined in-axis and cross-axis shock environment is shown for one configuration. Finally, a failure analysis conducted in cooperation with ENDEVCO gives a cause for the occasional unexplained failures that have occurred in some applications.

  6. Beyond chemical accuracy: The pseudopotential approximation in diffusion Monte Carlo calculations of the HCP to BCC phase transition in beryllium

    E-Print Network [OSTI]

    Shulenburger, Luke; Desjarlais, M P

    2015-01-01

    Motivated by the disagreement between recent diffusion Monte Carlo calculations and experiments on the phase transition pressure between the ambient and beta-Sn phases of silicon, we present a study of the HCP to BCC phase transition in beryllium. This lighter element provides an oppor- tunity for directly testing many of the approximations required for calculations on silicon and may suggest a path towards increasing the practical accuracy of diffusion Monte Carlo calculations of solids in general. We demonstrate that the single largest approximation in these calculations is the pseudopotential approximation. After removing this we find excellent agreement with experiment for the ambient HCP phase and results similar to careful calculations using density functional theory for the phase transition pressure.

  7. Prediction of {sup 1}P Rydberg energy levels of beryllium based on calculations with explicitly correlated Gaussians

    SciTech Connect (OSTI)

    Bubin, Sergiy [Department of Chemistry, University of Rochester, Rochester, New York 14627 (United States)] [Department of Chemistry, University of Rochester, Rochester, New York 14627 (United States); Adamowicz, Ludwik [Department of Chemistry and Biochemistry and Department of Physics, University of Arizona, Tucson, Arizona 85721 (United States)] [Department of Chemistry and Biochemistry and Department of Physics, University of Arizona, Tucson, Arizona 85721 (United States)

    2014-01-14

    Benchmark variational calculations are performed for the seven lowest 1s{sup 2}2s?np?({sup 1}P), n = 2…8, states of the beryllium atom. The calculations explicitly include the effect of finite mass of {sup 9}Be nucleus and account perturbatively for the mass-velocity, Darwin, and spin-spin relativistic corrections. The wave functions of the states are expanded in terms of all-electron explicitly correlated Gaussian functions. Basis sets of up to 12 500 optimized Gaussians are used. The maximum discrepancy between the calculated nonrelativistic and experimental energies of 1s{sup 2}2s?np?({sup 1}P) ?1s{sup 2}2s{sup 2}?({sup 1}S) transition is about 12 cm{sup ?1}. The inclusion of the relativistic corrections reduces the discrepancy to bellow 0.8 cm{sup ?1}.

  8. STARTUP REACTIVITY ACCOUNTABILITY ATTRIBUTED TO ISOTOPIC TRANSMUTATIONS IN THE IRRADIATED BERYLLIUM REFLECTOR OF THE HIGH FLUX ISTOTOPE REACTOR

    SciTech Connect (OSTI)

    Chandler, David [ORNL] [ORNL; Maldonado, G Ivan [ORNL] [ORNL; Primm, Trent [ORNL] [ORNL

    2010-01-01

    The objective of this study is to develop a methodology to predict the reactivity impact as a function of outage time between cycles of 3He, 6Li, and other poisons in the High Flux Isotope Reactor s (HFIR) beryllium reflector. The reactivity worth at startup of the HFIR has been incorrectly predicted in the past after the reactor has been shut-down for long periods of time. The incorrect prediction was postulated to be due to the erroneous calculation of 3He buildup in the beryllium reflector. It is necessary to develop a better estimate of the start-of-cycle symmetric critical control element positions since if the estimated and actual symmetrical critical control element positions differ by more than $1.55 in reactivity (approximately one-half inch in control element startup position), HFIR is to be shutdown and a technical evaluation is performed to resolve the discrepancy prior to restart. 3He is generated and depleted during operation, but during an outage, the depletion of 3He ceases because it is a stable isotope. 3He is born from the radioactive decay of tritium, and thus the concentration of 3He increases during shutdown. The computer program SCALE, specifically the TRITON and CSAS5 control modules including the KENO V.A, COUPLE, and ORIGEN functional modules were utilized in this study. An equation relating the down time (td) to the change in symmetric control element position was generated and validated against measurements for approximately 40 HFIR operating cycles. The newly-derived correlation was shown to improve accuracy of predictions for long periods of down time.

  9. The Fusion Core Complex of the Peste des Petits Ruminants Virus Is a Six-Helix Bundle Assembly

    E-Print Network [OSTI]

    Srinivasan, N.

    The Fusion Core Complex of the Peste des Petits Ruminants Virus Is a Six-Helix Bundle Assembly (PPRV) fusion protein (F) to obtain insights into the mechanism by which these repeats influence PPRV-mediated cell fusion. Both HR1 and HR2 inhibit PPRV-mediated syncytia formation in Vero cells in vitro. Of these

  10. Design of a navigation filter by analysis of local observability Pierre-Jean Bristeau, Nicolas Petit, Laurent Praly

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Design of a navigation filter by analysis of local observability Pierre-Jean Bristeau, Nicolas Petit, Laurent Praly Abstract-- This paper presents an inertial navigation filter designed. This results in temporally interconnected observers which are of the Kalman filter type. It is proven that each

  11. From: To: Cc: Subject: Date: Morris Alexander

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    To: Cc: Subject: Date: Morris Alexander "Hlls Shawn" Humphrey Shonda CCONJRl: Bartos Miriam RE: Multiple FOIA request filed by the DNC Tuesday, March 17, 2015 8:15:16 AM Thank you...

  12. date 04/2009 Waste Management

    E-Print Network [OSTI]

    Columbia University

    fibres #12;date 04/2009 Waste Incineration Plant at Munich North ­ Using Combined Heat and Power production of electrical power · 792,351 MWh production of heat for district heating · 238,000 t reduction

  13. DATE: __________________ NVLAP LAB CODE: _________________ Test Method

    E-Print Network [OSTI]

    DATE: __________________ NVLAP LAB CODE: _________________ Test Method Designation Short Title _____ 30/DISC00A ANSI/INCITS 423.1 (2008) Information Technology - Conformance Testing Methodology Standard for Biometric Data Interchange Format Standards - Part 1: Generalized Conformance Testing Methodology _____ 30

  14. III. 1 RADIOCAREON DATING AND EGYPTIAN CHRONOLOGY*

    E-Print Network [OSTI]

    Manning, Sturt

    19 August 2003. The paper employs the then standard IntCal98 radiocarbon calibration dataset. A new inant theme in radiocarbon dating for the next generation; already by the Iate 1960s to early 1970s

  15. Date ______________________ New York City Fire Department

    E-Print Network [OSTI]

    Jia, Songtao

    Date ______________________ New York City Fire Department Bureau of Fire Prevention 9 Metro-Tech Brooklyn, New York 11201 ­ 5884 Dear Sir / Madam: I am pleased to recommend Street, New York, NY 10027 212-854-8749 #12;

  16. Object Code: SOFC Credit Card Holder Name Date Completed

    E-Print Network [OSTI]

    Behmer, Spencer T.

    - Object Code: SOFC Credit Card Holder Name Date Completed: FAMIS Ref # E# release date *Vendor." Services of the SOFC are supported by Student Service Fees 8/13/12 Date: SOFC Account Balance: Encumbrance #: Re-allocation dateActual charge FAMIS Post Date

  17. Beryllium monohydride (BeH): Where we are now, after 86 years of spectroscopy

    E-Print Network [OSTI]

    Dattani, Nikesh S

    2014-01-01

    BeH is one of the most important benchmark systems for ab initio methods and for studying Born-Oppenheimer breakdown. However the best empirical potential and best ab initio potential for the ground electronic state to date give drastically different predictions in the long-range region beyond which measurements have been made, which is about \\sim1000 cm^{-1} for ^{9} BeH, \\sim3000 cm^{-1} for ^{9} BeD, and \\sim13000 cm^{-1} for ^{9} BeT. Improved empirical potentials and Born-Oppenheimer breakdown corrections have now been built for the ground electronic states X(1^{2}\\Sigma^{+}) of all three isotopologues. The predicted dissociation energy for ^{9} BeH from the new empirical potential is now closer to the current best ab initio prediction by more than 66% of the discrepancy between the latter and the previous best empirical potential. The previous best empirical potential predicted the existence of unobserved vibrational levels for all three isotopologues, and the current best ab initio study also predicted...

  18. STATE OF CALIFORNIA NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor DATE: February 25, 2011

    E-Print Network [OSTI]

    ) submitted a petition to amend various Conditions of Certification for the Gilroy Cogeneration Project (GCP, as currently written. BACKGROUND The Gilroy Cogeneration facility is a 115 MW cogeneration facility in Santa

  19. Save the Date: DOE EERE AMO Workshop to Discuss Manufacturing...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Save the Date: DOE EERE AMO Workshop to Discuss Manufacturing Process Intensification Innovation Topic Save the Date: DOE EERE AMO Workshop to Discuss Manufacturing Process...

  20. Estimations and integral measurements for the spectral yield of neutrons from thick beryllium target bombarded with 16 MeV protons

    E-Print Network [OSTI]

    Fenyvesi, A

    2015-01-01

    Spectral yield of p+Be neutrons emitted by thick (stopping) beryllium target bombarded by 16 MeV protons was estimated via extrapolation of literature data. The spectrum was validated via multi-foil activation method and irradiation of 2N2222 transistors. The hardness parameter (NIEL scaling factor) for displacement damage in bulk silicon was calculated and measured and kappa = 1.26 +- 0.1 was obtained.

  1. Estimations and integral measurements for the spectral yield of neutrons from thick beryllium target bombarded with 16 MeV protons

    E-Print Network [OSTI]

    A. Fenyvesi

    2015-04-28

    Spectral yield of p+Be neutrons emitted by thick (stopping) beryllium target bombarded by 16 MeV protons was estimated via extrapolation of literature data. The spectrum was validated via multi-foil activation method and irradiation of 2N2222 transistors. The hardness parameter (NIEL scaling factor) for displacement damage in bulk silicon was calculated and measured and kappa = 1.26 +- 0.1 was obtained.

  2. {sup 1}D states of the beryllium atom: Quantum mechanical nonrelativistic calculations employing explicitly correlated Gaussian functions

    SciTech Connect (OSTI)

    Sharkey, Keeper L. [Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721 (United States); Bubin, Sergiy [Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235 (United States); Adamowicz, Ludwik [Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721 (United States); Department of Physics, University of Arizona, Tucson, Arizona 85721 (United States)

    2011-10-15

    Very accurate finite-nuclear-mass variational nonrelativistic calculations are performed for the lowest five {sup 1}D states (1s{sup 2} 2p{sup 2}, 1s{sup 2} 2s{sup 1} 3d{sup 1}, 1s{sup 2} 2s{sup 1} 4d{sup 1}, 1s{sup 2} 2s{sup 1} 5d{sup 1}, and 1s{sup 2} 2s{sup 1} 6d{sup 1}) of the beryllium atom ({sup 9}Be). The wave functions of the states are expanded in terms of all-electron explicitly correlated Gaussian functions. The exponential parameters of the Gaussians are optimized using the variational method with the aid of the analytical energy gradient determined with respect to those parameters. The calculations exemplify the level of accuracy that is now possible with Gaussians in describing bound states of a four-electron system where some of the electrons are excited into higher angular states.

  3. The beryllium abundance in the very metal-poor halo star G 64-12 from VLT/UVES observations

    E-Print Network [OSTI]

    F. Primas; M. Asplund; P. E. Nissen; V. Hill

    2000-09-29

    We report on a new spectroscopic analysis of the very metal deficient star G 64-12 ([Fe/H]=-3.3), aimed at determining, for the first time, its Be content. The spectra were observed during the Science Verification of UVES, the ESO VLT Ultraviolet and Visible Echelle Spectrograph. The high resolution (~48,000) and high S/N (~130 per pixel) achieved at the wavelengths of the BeII resonance doublet allowed an accurate determination of its abundance: log N(Be/H) = -13.10 +/- 0.15 dex. The Be abundance is significantly higher than expected from previous measurements of Be in stars of similar metallicity (3D and NLTE corrections acting to make a slightly higher value than an LTE analysis). When compared to iron, the high [Be/Fe] ratio thus found may suggest a flattening in the beryllium evolutionary trend at the lowest metallicity end or the presence of dispersion at early epochs of galactic evolution.

  4. The beryllium hollow-body solar sail: exploration of the Sun's gravitational focus and the inner Oort Cloud

    E-Print Network [OSTI]

    Gregory L. Matloff; Roman Ya. Kezerashvili; Claudio Maccone; Les Johnson

    2008-09-20

    Spacecraft kinematics, peak perihelion temperature and space environment effects during solar-radiation-pressure acceleration for a beryllium hollow-body interstellar solar sail inflated with hydrogen fill gas are investigated. We demonstrate that diffusion is alleviated by an on-board fill gas reserve and electrostatic pressure can be alleviated by increasing perihelion distance. For a 0.1 AU perihelion, a 937 m radius sail with a sail mass of 150 kg and a payload mass of 150 kg, perihelion sail temperature is about 1000 K, peak acceleration is about 0.6 g, and solar-system exit velocity is about 400 km/s. After sail deployments, the craft reaches the 200 AU heliopause in 2.5 years, the Sun's inner gravitational focus at 550 AU in about 6.5 years and 2,550 AU in 30 years. The Be hollow-body sail could be applied in the post 2040 time frame to verify general relativity predictions regarding the Sun's inner gravitational focus and to explore particles and fields in the Sun's inner Oort Comet Cloud.

  5. Evaluation of beryllium exposure assessment and control programs at AWE, Cardiff Facility, Rocky Flats Plant, Oak Ridge Y-12 Plant and Lawrence Livermore National Laboratory. Phase 1

    SciTech Connect (OSTI)

    Johnson, J.S.; Foote, K.L.; Slawski, J.W.; Cogbill, G.

    1995-04-28

    Site visits were made to DOE beryllium handling facilities at the Rocky Flats Plant; Oak Ridge Y-12 Plant, LLNL; as well as to the AWE Cardiff Facility. Available historical data from each facility describing its beryllium control program were obtained and summarized in this report. The AWE Cardiff Facility computerized Be personal and area air-sampling database was obtained and a preliminary evaluation was conducted. Further validation and documentation of this database will be very useful in estimating worker Be. exposure as well as in identifying the source potential for a variety of Be fabrication activities. Although all of the Be control programs recognized the toxicity of Be and its compounds, their established control procedures differed significantly. The Cardiff Facility, which was designed for only Be work, implemented a very strict Be control program that has essentially remained unchanged, even to today. LLNL and the Oak Ridge Y-12 Plant also implemented a strict Be control program, but personal sampling was not used until the mid 1980s to evaluate worker exposure. The Rocky Flats plant implemented significantly less controls on beryllium processing than the three previous facilities. In addition, records were less available, management and industrial hygiene staff turned over regularly, and less control was evident from a management perspective.

  6. COS Calibration Requirements & Procedures Date: March 17, 2002

    E-Print Network [OSTI]

    Colorado at Boulder, University of

    COS Calibration Requirements & Procedures Date: March 17, 2002 Document Number: COS-01 Wilkinson, COS Instrument Scientist Date Reviewed By: Dennis Ebbets 2-15-01 Dr. Dennis Ebbets, COS Calibration Scientist, BASD Date Reviewed By: Jon A. Morse 2-1-01 Dr. Jon Morse, COS Project Scientist Date

  7. COS Calibration Requirements & Procedures Date: May 20, 2002

    E-Print Network [OSTI]

    Colorado at Boulder, University of

    COS Calibration Requirements & Procedures Date: May 20, 2002 Document Number: COS-01-0003 Revision, COS Instrument Scientist Date Reviewed By: Dennis Ebbets 2-15-01 Dr. Dennis Ebbets, COS Calibration Scientist, BASD Date Reviewed By: Jon A. Morse 2-1-01 Dr. Jon Morse, COS Project Scientist Date Approved By

  8. Date Master's Student Non Thesis Option

    E-Print Network [OSTI]

    Maxwell, Bruce D.

    1 Date Master's Student Ph.D.or Non Thesis Option (Professional Paper) Title Committee Members * = Chair (Co-chair) 3/23/1909 Peterson, James A. B.S. not thesis for Masters Trust Legislation. 3/24/1910 Jacobs, Lillian B.S. not thesis for Masters Monetary System of the United States. 3/28/1914 Richter

  9. THESIS DEFENSE REPORT FORM Defense Date

    E-Print Network [OSTI]

    Emmons, Scott

    THESIS DEFENSE REPORT FORM Defense Date: Student: Department: Dissertation Title: Please hand: (718) 430-8655 Committee Member Decision Signature P CP F (Chair) The decision of the Thesis Defense' on the scientific merit of the Thesis Defense and the Dissertation, but with substantial revisions. If someone other

  10. Non-Unit Faculty Effective Date

    E-Print Network [OSTI]

    Hua, Kien A.

    SUBJECT: Non-Unit Faculty Evaluation Effective Date: 05-18-11 Policy Number: 4-500.1 Supersedes: 4 Adoption: 03-30-05 APPLICABILITY/ACCOUNTABILITY: This policy is applicable to all units and departments that employ non-unit faculty employees in regular positions. POLICY STATEMENT: Non-unit faculty members

  11. DATE: ____________________ NVLAP LAB CODE: __________________ Test Method

    E-Print Network [OSTI]

    DATE: ____________________ NVLAP LAB CODE: __________________ Test Method Designation Short Title by Tension Loading (CSA Standards for Wood Adhesives, Sec. 0112.0-M: Clause 3.2: Plywood Shear Test TEST METHOD SELECTION LIST FIRE TESTS NVLAP Test Method Code GENERAL WOOD PRODUCTS To avoid duplication

  12. Berlin Heart Excor: Date and time

    E-Print Network [OSTI]

    Miyashita, Yasushi

    Berlin Heart Excor: Date and time 2015 8 29 1600 1700 Saturday, 29 August 2015, 4:00 pm -5 Professor, Department of Cardiovascular Surgery, The University of Tokyo Hospital Points Berlin Heart Heart Excor". Excellent results in trials with nine patients have prompted governmental approval

  13. 2011 TRAINING DATES January 10-12

    E-Print Network [OSTI]

    2011 TRAINING DATES January 10-12 March 1-3 April 11-13 June 7-9 July 26-28 September 6-8 November: Tools and Functionality Professional Development Training Course OVERVIEW ArcGIS Desktop II: Tools come- first serve basis. · The workshop registration cost is $650. Payment is due prior to the training

  14. SUBJECT: Effective Date: October 21, 2011

    E-Print Network [OSTI]

    Fernandez, Eduardo

    SUBJECT: Effective Date: October 21, 2011 Policy Number: 10.3.3 Defining Human Subjects Research Institutional Review Board Director, Research Integrity I. Background Human subjects research (HSR) is defined and Drug Administration (FDA) considers any clinical investigation involving a human subject to be human

  15. 2015 Summer Housing Summer Housing dates

    E-Print Network [OSTI]

    Cantlon, Jessica F.

    1 2015 Summer Housing FACT SHEET Summer Housing dates: May 18, 2015­ August 8, 2015 "Rochester Shines in the Summer Time" Please read all of the information thoroughly. Once signed, your housing contract is binding. *We will begin accepting Summer Housing contracts Monday, April 6, 2015 GENERAL

  16. Revision Date: October 2014 Fuel Cell Inspection

    E-Print Network [OSTI]

    Chen, Zhongping

    Revision Date: October 2014 Fuel Cell Inspection INTRODUCTION Introduction: Safety concerns associated with fuel cells are generally hazardous interactions when fuel is integrated in such systems, mainly fire, explosion and electrical shock hazards. Per the 2013 California Mechanical Code, fuel cell

  17. SUBJECT: Effective Date: June 10, 2015

    E-Print Network [OSTI]

    Fernandez, Eduardo

    for such funding, which may include, for example, collaborators or consultants. Family Member means spouse andSUBJECT: Effective Date: June 10, 2015 Policy Number: 10.1.2 Financial Conflict of Interest. Purpose The purpose of this policy is to ensure that the personal financial interests of FAU employees do

  18. BICYCLE THEFTS Date: May 18, 2015

    E-Print Network [OSTI]

    Al Faruque, Mohammad Abdullah

    BICYCLE THEFTS Date: May 18, 2015 Incident / Location: Multiple Bike Thefts / UCI Medical Center Details: UCI Police Department has received six reports of bicycle thefts at the UCI Medical Center that have occurred over the past several months. These bicycle thefts have occurred during daytime hours

  19. Simple Networking Date: 2014.03.02

    E-Print Network [OSTI]

    1969 · Internet in Jan 2006 #12;Outline · History of the Internet · What's the Internet? · ProtocolSimple Networking Date: 2014.03.02 #12;#12;A Quick Overview of the Internet · Internet, as of Dec and Internet Laying · Network Packets #12;What's the Internet? · Millions of connected computing devices

  20. 09-10 Catalog Date GEOGRAPHY Graduation

    E-Print Network [OSTI]

    Li, X. Rong

    09-10 Catalog Date GEOGRAPHY Graduation Minor Name ID # Non-Geography Courses Completed Remaining __________ 3 Geography Courses (38 hours -- 19 hours 3000+) Geography 1001 1002 6 Geography 2151, 2254 or 2356, 2701*, and 2801 10 Geography 4805** or 4810** and 4901 7 Geography 2401 - 2441 ___________ 3 Geography

  1. REEE Solicitation Part I Due Date | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics AndBeryllium Disease | DepartmentOLEDEnergyPermitQ&A: TheServices| Departmentdelivery

  2. REEE Solicitation Part II Due Date | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics AndBeryllium Disease | DepartmentOLEDEnergyPermitQ&A: TheServices|

  3. REEE Solicitation Part II Due Date | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics AndBeryllium Disease | DepartmentOLEDEnergyPermitQ&A: TheServices|

  4. REEE Solicitation Part II Due Date | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics AndBeryllium Disease | DepartmentOLEDEnergyPermitQ&A: TheServices|

  5. REEE Solicitation Part II Due Date | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics AndBeryllium Disease | DepartmentOLEDEnergyPermitQ&A: TheServices|

  6. Delisting petition for 300-M saltstone (treated F006 sludge) from the 300-M liquid effluent treatment facility

    SciTech Connect (OSTI)

    Not Available

    1989-04-04

    This petition seeks exclusion for stabilized and solidified sludge material generated by treatment of wastewater from the 300-M aluminum forming and metal finishing processes. The waste contains both hazardous and radioactive components and is classified as a mixed waste. The objective of this petition is to demonstrate that the stabilized sludge material (saltstone), when properly disposed, will not exceed the health-based standards for the hazardous constituents. This petition contains sampling and analytical data which justify the request for exclusion. The results show that when the data are applied to the EPA Vertical and Horizontal Spread (VHS) Model, health-based standards for all hazardous waste constituents will not be exceeded during worst case operating and environmental conditions. Disposal of the stabilized sludge material in concrete vaults will meet the requirements pertaining to Waste Management Activities for Groundwater Protection at the Savannah River Site in Aiken, S.C. Documents set forth performance objectives and disposal options for low-level radioactive waste disposal. Concrete vaults specified for disposal of 300-M saltstone (treated F006 sludge) assure that these performance objectives will be met.

  7. 2014 REGISTRATION DATES (VENUE: NEW LEARNING CENTRE)

    E-Print Network [OSTI]

    Jarrett, Thomas H.

    2014 REGISTRATION DATES MBChB (VENUE: NEW LEARNING CENTRE) 2ND YEAR: 13 JANUARY 2014 @ 09h00 3RD: 13 JANUARY 2014 @ 14h00 4TH YEAR: 13 JANUARY 2014 @ 14h00 (VENUE: FRANCES AMES) 3RD YEAR: 20 JANUARY 2014 @ 14h00 OCCUPATIONAL THERAPY (VENUE: NEW LEARNING CENTRE) 2ND YEAR: 13 JANUARY 2014 @ 14h00 3RD

  8. Carbon-14 Bomb-Pulse Dating

    SciTech Connect (OSTI)

    Buchholz, B A

    2007-12-16

    Atmospheric testing of nuclear weapons during the 1950s and early 1960s doubled the concentration of carbon-14 atmosphere and created a pulse that labeled everything alive in the past 50 years as carbon moved up the food chain. The variation in carbon-14 concentration in time is well-documented and can be used to chronologically date all biological materials since the mid-1950s.

  9. Dynamic response of materials on sub-nanosecond time scales, and beryllium properties for inertial confinement fusion

    SciTech Connect (OSTI)

    Swift, D C; Tierney, T E; Luo, S N; Paisley, D L; Kyrala, G A; Hauer, A; Greenfield, S R; Koskelo, A C; McClellan, K J; Lorenzana, H E; Knudson, M D; Peralta, P P; Loomis, E

    2004-12-09

    During the past few years, substantial progress has been made in developing experimental techniques capable of investigating the response of materials to dynamic loading on nanosecond time scales and shorter, with multiple diagnostics probing different aspects of the behavior. these relatively short time scales are scientifically interesting because plastic flow and phase changes in common materials with simple crystal structures--such as iron--may be suppressed, allowing unusual states to be induced and the dynamics of plasticity and polymorphism to be explored. Loading by laser ablation can be particularly convenient. The TRIDENT laser has been used to impart shocks and isentropic compression waves from {approx}1 to 200GPa in a range of elements and alloys, with diagnostics including surface velocimetry (line-imaging VISAR), surface displacement (framed area imaging), x-ray diffraction (single crystal and polycrystal), ellipsometry, and Raman spectroscopy. A major motivation has been the study of the properties of beryllium under conditions relevant to the fuel capsule in inertial confinement fusion: magnetically-driven shock and isentropic compression shots at Z were used to investigate the equation of state and shock melting characteristics, complemented by laser ablation experiments to investigate plasticity and heterogeneous response. These results will help to constrain acceptable tolerances on manufacturing, and possible loading paths, for inertial fusion ignition experiments at the National Ignition Facility. Laser-based techniques are being developed further for future material dynamics experiments, where it should be possible to obtain high quality data on strength and phase changes up to at least 1TPa.

  10. Tracing mixing in stars: new beryllium observations of the open clusters NGC 2516, Hyades, and M67

    E-Print Network [OSTI]

    S. Randich; F. Primas; L. Pasquini; P. Sestito; R. Pallavicini

    2007-05-16

    Determinations of beryllium abundance in stars, together with lithium, provide a key tool to investigate the so far poorly understood extra-mixing processes at work in stellar interiors. We measured Be in three open clusters,complementing existing Be surveys, and aiming at gathering a more complete empirical scenario of the evolution of Be as a function of stellar age and temperature. Specifically, we analyzed VLT/UVES spectra of members of NGC 2516, the Hyades, and M 67 to determine their Be and Li abundances. In the first two clusters we focused on stars cooler than 5400 K, while the M 67 sample includes stars warmer than 6150 K, as well as two subgiants and two blue stragglers. We also computed the evolution of Be for a 0.9 Mo star based on standard evolutionary models. We find different emprical behaviours for stars in different temperature bins and ages. Stars warmer than 6150 K show Be depletion and follow a Be vs. Li correlation while Be is undepleted in stars in the ~6150-5600 K range. NGC 2516 members cooler than 5400 K have not depleted any Be, but older Hyades of similar temperature do show some depletion. Be is severely depleted in the subgiants and blue stragglers. The results for warm stars are in agreement with previous studies, supporting the hypothesis that mixing in this temperature regime is driven by rotation. The same holds for the two subgiants that have evolved from the "Li gap". This mechanism is instead not the dominant one for solar-type stars. We show that Be depletion of cool Hyades cannot simply be explained by the effect of increasing depth of the convective zone. Finally, the different Be content of the two blue stragglers suggests that they have formed by two different processes (i.e., collisions vs. binary merging).

  11. Low energy cyclotron for radiocarbon dating

    SciTech Connect (OSTI)

    Welch, J.J.

    1984-12-01

    The measurement of naturally occurring radioisotopes whose half lives are less than a few hundred million years but more than a few years provides information about the temporal behavior of geologic and climatic processes, the temporal history of meteoritic bodies as well as the production mechanisms of these radioisotopes. A new extremely sensitive technique for measuring these radioisotopes at tandem Van de Graaff and cyclotron facilities has been very successful though the high cost and limited availability have been discouraging. We have built and tested a low energy cyclotron for radiocarbon dating similar in size to a conventional mass spectrometer. These tests clearly show that with the addition of a conventional ion source, the low energy cyclotron can perform the extremely high sensitivity /sup 14/C measurements that are now done at accelerator facilities. We found that no significant background is present when the cyclotron is tuned to accelerate /sup 14/C negative ions and the transmission efficiency is adequate to perform radiocarbon dating on milligram samples of carbon. The internal ion source used did not produce sufficient current to detect /sup 14/C directly at modern concentrations. We show how a conventional carbon negative ion source, located outside the cyclotron magnet, would produce sufficient beam and provide for quick sampling to make radiocarbon dating milligram samples with a modest laboratory instrument feasible.

  12. Experimental Investigations on Pulsed Nd:YAG Laser Welding of C17300 Copper-Beryllium and 49Ni-Fe Soft Magnetic Alloys

    SciTech Connect (OSTI)

    Mousavi, S. A. A. Akbari [School of Metallurgy and Materials Engineering, School of Engineering University of Tehran, Tehran (Iran, Islamic Republic of); School of Metallurgy and Materials Engineering, School of Engineering University of Tehran, Tehran (Iran, Islamic Republic of); Ebrahimzadeh, H. [School of Metallurgy and Materials Engineering, School of Engineering University of Tehran, Tehran (Iran, Islamic Republic of)

    2011-01-17

    Copper-beryllium and soft magnetic alloys must be joined in electrical and electro-mechanical applications. There is a high difference in melting temperatures of these alloys which cause to make the joining process very difficult. In addition, copper-beryllium alloys are of age hardenable alloys and precipitations can brittle the weld. 49Ni-Fe alloy is very hot crack sensitive. Moreover, these alloys have different heat transfer coefficients and reflection of laser beam in laser welding process. Therefore, the control of welding parameters on the formation of adequate weld puddle composition is very difficult. Laser welding is an advanced technique for joining of dissimilar materials since it can precisely control and adjust the welding parameters. In this study, a 100W Nd:YAG pulsed laser machine was used for joining 49Ni-Fe soft magnetic to C17300 copper-beryllium alloys. Welding of samples was carried out autogenously by changing the pulse duration, diameter of beam, welding speed, voltage and frequency. The spacing between samples was set to almost zero. The ample were butt welded. It was required to apply high voltage in this study due to high reflection coefficient of copper alloys. Metallography, SEM analysis, XRD and microhardness measurement was used for survey of results. The results show that the weld strength depends upon the chemical composition of the joints. To change the wells composition and heat input of the welds, it was attempted to deviate the laser focus away from the weld centerline. The best strength was achieved by deviation of the laser beam away about 0.1mm from the weld centerline. The result shows no intermetallic compounds if the laser beam is deviated away from the joint.

  13. Property:Modification date | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to: navigation,PropertyPartner7WebsiteCertReqs JumpResCodeModification date

  14. Property:PublicationDate | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS Report Url Jump to:Programmable Wavemaking JumpProjectPublicationDate

  15. Date Time Event Description/Participants Location

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you not find what you were looking for? TryUpdated: 06/11/2015 Date Time

  16. Property:Date Submitted | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to: navigation, search Property Name DIA/Topics/EnvironmentalDOIIdDate

  17. Property:EndDate | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to: navigation, search PropertyIsoOther JumpEndDate Jump to: navigation, search

  18. Property:Event/Date | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to: navigation, searchEnvironmentalMitigationEstimatedTimeMedian Jump to:Date

  19. Nuclear Speed-Dating | Department of Energy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesseworkSURVEY UNIVERSE The 2014 survey includesScience ProgramsSpeed-Dating

  20. Pion Production by Protons on a Thin Beryllium Target at 6.4, 12.3, and 17.5 GeV/c Incident Proton Momenta

    E-Print Network [OSTI]

    E910 Collaboration; I. Chemakin; V. Cianciolo; B. A. Cole; R. C. Fernow; A. D. Frawley; M. Gilkes; S. Gushue; E. P. Hartouni; H. Hiejima; M. Justice; J. H. Kang; H. G. Kirk; J. M. Link; N. Maeda; R. L. McGrath; S. Mioduszewski; J. Monroe; D. Morrison; M. Moulson; M. N. Namboodiri; G. Rai; K. Read; L. Remsberg; M. Rosati; Y. Shin; R. A. Soltz; M. Sorel; S. Sorensen; J. H. Thomas; Y. Torun; D. L. Winter; X. Yang; W. A. Zajc; Y. Zhang

    2008-03-10

    An analysis of inclusive pion production in proton-beryllium collisions at 6.4, 12.3, and 17.5 GeV/c proton beam momentum has been performed. The data were taken by Experiment 910 at the Alternating Gradient Synchrotron at the Brookhaven National Laboratory. The differential $\\pi^+$ and $\\pi^-$ production cross sections ($d^2\\sigma/dpd\\Omega$) are measured up to 400 mRad in $\\theta_{\\pi}$ and up to 6 GeV/c in $p_{\\pi}$. The measured cross section is fit with a Sanford-Wang parameterization.

  1. COS NCM2 Mirror Substrate Specification Date: January 28, 2000

    E-Print Network [OSTI]

    Colorado at Boulder, University of

    COS NCM2 Mirror Substrate Specification Date: January 28, 2000 Document Number: COS-08, COS Instrument Scientist, CU/CASA Date Reviewed By: R. Cahill 2-18-99 R. Cahill, Optical Designer-18-99 J. Andrews, COS Experiment Manager, CU/CASA Date Approved By: J. Green 4-9-99 J. C. Green, COS

  2. COS NUV Grating Substrate Specification Date: August 20, 2001

    E-Print Network [OSTI]

    Colorado at Boulder, University of

    COS NUV Grating Substrate Specification Date: August 20, 2001 Document Number: COS-08-0013 Revision: Initial Release Contract No.: NAS5-98043 CDRL No.: Prepared By: E. Wilkinson, COS Instrument Scientist, CU, BATC Date Approved By: D. Ebbets, Calibration Scientist, BATC Date Approved By: J. Andrews, COS

  3. COS NCM3 Mirror Substrate Specification Date: January 28, 2000

    E-Print Network [OSTI]

    Colorado at Boulder, University of

    COS NCM3 Mirror Substrate Specification Date: January 28, 2000 Document Number: COS-08, COS Instrument Scientist, CU/CASA Date Reviewed By: R. Cahill 2-18-99 R. Cahill, Optical Designer-18-99 J. Andrews, COS Experiment Manager, CU/CASA Date Approved By: J. Green 4-9-99 J. C. Green, COS

  4. NOTICE OF REGULATION REPEAL Date: August 6, 2009

    E-Print Network [OSTI]

    Wu, Shin-Tson

    NOTICE OF REGULATION REPEAL Date: August 6, 2009 REGULATION TITLE: REGULATION NO.: Certification of Compliance - Leases 6C7-7.216 SUMMARY OF REGULATION REPEAL: This regulation is noticed for repeal because the subject matter of the regulation is not needed and is out of date. AUTHORITY: BOG Resolution dated January

  5. Retrieval Name: Information Release -54 Issue Date: April 20, 2006

    E-Print Network [OSTI]

    Retrieval Name: Information Release - 54 Issue Date: April 20, 2006 Revision Date: Originator: LSUSH Accounting Services Rescind Date: Information Release #54 Page 1 PeopleSoft IR- #54 LSUSH - Month of March 2006 General Ledger Closed Scope: This PeopleSoft Information Release (IR) applies to the LSUSH

  6. Retrieval Name: Information Release -57 Issue Date: June 19, 2006

    E-Print Network [OSTI]

    Retrieval Name: Information Release - 57 Issue Date: June 19, 2006 Revision Date: Originator: LSUSH Accounting Services Rescind Date: Information Release #57 Page 1 PeopleSoft IR- #57 LSUSH - Month of May 2006 General Ledger Closed Scope: This PeopleSoft Information Release (IR) applies to the LSUSH Financial

  7. Retrieval Name: Information Release -58 Issue Date: August 29, 2006

    E-Print Network [OSTI]

    Retrieval Name: Information Release - 58 Issue Date: August 29, 2006 Revision Date: Originator: LSUSH Accounting Services Rescind Date: Information Release #58 Page 1 PeopleSoft IR- #58 LSUSH & EACMC - Month of June 2006 General Ledger Closed Scope: This PeopleSoft Information Release (IR) applies

  8. Retrieval Name: Information Release -53 Issue Date: March 20, 2006

    E-Print Network [OSTI]

    Retrieval Name: Information Release - 53 Issue Date: March 20, 2006 Revision Date: Originator: LSUSH Accounting Services Rescind Date: Information Release #50 Page 1 PeopleSoft IR- #53 LSUSH - Month of February 2006 General Ledger Closed Scope: This PeopleSoft Information Release (IR) applies to the LSUSH

  9. Retrieval Name: Information Release -52 Issue Date: February 16, 2006

    E-Print Network [OSTI]

    Retrieval Name: Information Release - 52 Issue Date: February 16, 2006 Revision Date: Originator: LSUSH Accounting Services Rescind Date: Information Release #52 Page 1 PeopleSoft IR- #52 LSUSH - MonthSoft Information Release (IR) applies to the LSUSH Financial Community responsible for management

  10. Retrieval Name: Information Release 59 Issue Date: September 20, 2006

    E-Print Network [OSTI]

    Retrieval Name: Information Release ­ 59 Issue Date: September 20, 2006 Revision Date: Originator: LSUSH Accounting Services Rescind Date: Information Release #59 Page 1 PeopleSoft IR- #59 LSUSH - Month of July 2006 General Ledger Closed Scope: This PeopleSoft Information Release (IR) applies to the LSUSH

  11. Retrieval Name: Information Release -55 Issue Date: May 16, 2006

    E-Print Network [OSTI]

    Retrieval Name: Information Release - 55 Issue Date: May 16, 2006 Revision Date: Originator: LSUSH Accounting Services Rescind Date: Information Release #55 Page 1 PeopleSoft IR- #55 LSUSH and EACMC - Month of April 2006 General Ledger Closed Scope: This PeopleSoft Information Release (IR) applies to the LSUSH

  12. Retrieval Name: Information Release 61 Issue Date: October 17, 2006

    E-Print Network [OSTI]

    Retrieval Name: Information Release ­ 61 Issue Date: October 17, 2006 Revision Date: Originator: LSUSH Accounting Services Rescind Date: Information Release #61 Page 1 PeopleSoft IR- #61 LSUSH - Month of September 2006 General Ledger Closed Scope: This PeopleSoft Information Release (IR) applies to the LSUSH

  13. REEE Solicitation Part I Due Date | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics AndBeryllium Disease | DepartmentOLEDEnergyPermitQ&A: TheServices| DepartmentdeliveryJuly

  14. Microstructure and properties of rapidly solidified beryllium-transition metal alloys. [With small amounts of Ti, Zr and Y (1-3 wt %)

    SciTech Connect (OSTI)

    Jacobson, L.A.; Richardson, S.

    1988-01-01

    Alloys of beryllium with small amounts of Ti, Zr and Y (1-3 wt %) were rapidly solidified using an arc hammer splat technique. Each of these elements forms a dilute eutectic with beryllium, and has very low solid solubility in the alpha phase. In the case of Ti, the Be-rich compound is TiBe/sub 12/, and for Zr and Y, the compound is MBe. The objective of the work was to achieve a fine, uniform dispersion of particles of the intermetallic compound. Since these compounds have very high melting points, it was expected that rapidly solidified microstructures would be relatively stable at elevated temperatures. This microstructural stability should result in improved high temperature properties for the alloys. Microstructures have been characterized using optical, scanning and transmission electron microscopy. Microhardness measurements have been made in order to determine the effects of rapid solidification and to evaluate the effects of high temperature exposure on microstructural stability and property retention. The results will be presented in light of the potential of these alloys for intermediate temperature application. 12 refs., 8 figs.

  15. Calculation of two-centre two-electron integrals over Slater-type orbitals revisited. III. Case study of the beryllium dimer

    E-Print Network [OSTI]

    Lesiuk, Micha?; Musia?, Monika; Jeziorski, Bogumi?; Moszynski, Robert

    2014-01-01

    In this paper we present results of ab-initio calculations for the beryllium dimer with basis set of Slater-type orbitals (STOs). Nonrelativistic interaction energy of the system is determined using the frozen-core full configuration interaction calculations combined with high-level coupled cluster correction for inner-shell effects. Newly developed STOs basis sets, ranging in quality from double to sextuple zeta, are used in these computations. Principles of their construction are discussed and several atomic benchmarks are presented. Relativistic effects of order ${\\alpha}^2$ are calculated perturbatively by using the Breit-Pauli Hamiltonian and are found to be significant. We also estimate the leading-order QED effects. Influence of the adiabatic correction is found to be negligible. Finally, the interaction energy of the beryllium dimer is determined to be 929.0$\\,\\pm\\,$1.9 $cm^{-1}$, in a very good agreement with the recent experimental value. The results presented here appear to be the most accurate ab-...

  16. Dismantling Gender and Race Stereotypes: Using Education to Prevent Date Rape

    E-Print Network [OSTI]

    Gill, Sarah

    1996-01-01

    aimed at refining date rape educational programs, however,race stereotypes and date rape myths. As conclusions fromthe structure and content of date rape educational programs

  17. PETITION FOR ASSIGNMENT OF PATENT RIGHTS TO INVENTOR The undersigned Inventor(s), an employee(s) of The Pennsylvania State University, seeks to have

    E-Print Network [OSTI]

    Lee, Dongwon

    PETITION FOR ASSIGNMENT OF PATENT RIGHTS TO INVENTOR The undersigned Inventor(s), an employee. RA-12. Inventor warrants and represents the following to be true: 1. Compliance with My Obligations to the invention, and to rescind any assignment. 2. Agreement Among Joint Inventors. PSRF will only assign an equal

  18. Date Set for Closure of Russian Nuclear Weapons Plant - NNSA...

    National Nuclear Security Administration (NNSA)

    Date Set for Closure of Russian Nuclear Weapons Plant - NNSA Is Helping Make It Happen | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission...

  19. UC Davis Health System -Computer Workstation Self Evaluation Assessment Date: ______________

    E-Print Network [OSTI]

    Leistikow, Bruce N.

    UC Davis Health System - Computer Workstation Self Evaluation Assessment Date Ergonomics Program at 734-6180 #12;UCDHS ERGONOMICS PROGRAM Adjusting your Computer Workstation to Fit

  20. Curtailment Date & Time Total Wind SCE Plus CSGI Reserves

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Curtailment Date & Time Total Wind SCE Plus CSGI Reserves Deployed Reserves Held Amount Curtailed Reserves Deployed Percent Adjusted Amount Curtailed Plus Wind SCE with CSGI 26...

  1. NEMA Lighting, CCE Overview and Update presentation, dated 05...

    Broader source: Energy.gov (indexed) [DOE]

    Lighting, CCE Overview and Update, date - May 25, 2011. nemalightingpresentaion.pdf More Documents & Publications Energy Conservation Program for Consumer Products and...

  2. College of Engineering General Inspection Report Date:__________________Room#:______________ Inspector:____________________

    E-Print Network [OSTI]

    Saskatchewan, University of

    College of Engineering General Inspection Report DateFlammable:___________Flammable:______________ Corrosive:________Toxic:_________Oxidizer:__________ 11) No propane stored in building 12) Greasy

  3. PLEASE NOTE THURSDAY DATE - COLLOQUIUM: Professor Ralph Roskies...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    MBG Auditorium PLEASE NOTE THURSDAY DATE - COLLOQUIUM: Professor Ralph Roskies - "Big Data at the Pittsburgh Supercomputing Center" Professor Ralph Roskies Pittsburgh...

  4. "Title","Creator/Author","Publication Date","OSTI Identifier...

    Office of Scientific and Technical Information (OSTI)

    Date: 31-DEC-64","Maryland. Univ., College Park, MD (United States)","US Atomic Energy Commission (AEC)","PHYSICS; ANGULAR DISTRIBUTION; DEUTERON BEAMS; ELASTIC SCATTERING;...

  5. Radiokrypton Dating Identifies Ancient Antarctic Ice | U.S. DOE...

    Office of Science (SC) Website

    Radiokrypton Dating Identifies Ancient Antarctic Ice Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Funding Opportunities Nuclear Science...

  6. Cross-sections of large-angle hadron production in proton- and pion-nucleus interactions II: beryllium nuclei and beam momenta from +/- 3 GeV/c to +/-15 GeV/c

    E-Print Network [OSTI]

    The HARP-CDP group; :; A. Bolshakova

    2009-06-23

    We report on double-differential inclusive cross-sections of the production of secondary protons and charged pions, in the interactions with a 5% interaction length thick stationary beryllium target, of proton and pion beams with momentum from +/-3 GeV/c to +/-15 GeV/c. Results are given for secondary particles with production angles between 20 and 125 degrees.

  7. Measurement of the production cross-section of positive pions in the collision of 8.9 GeV/c protons on beryllium

    E-Print Network [OSTI]

    HARP Collaboration

    2007-10-30

    The double-differential production cross-section of positive pions, $d^2\\sigma^{\\pi^{+}}/dpd\\Omega$, measured in the HARP experiment is presented. The incident particles are 8.9 GeV/c protons directed onto a beryllium target with a nominal thickness of 5% of a nuclear interaction length. The measured cross-section has a direct impact on the prediction of neutrino fluxes for the MiniBooNE and SciBooNE experiments at Fermilab. After cuts, 13 million protons on target produced about 96,000 reconstructed secondary tracks which were used in this analysis. Cross-section results are presented in the kinematic range 0.75 GeV/c < $p_{\\pi}$ < 6.5 GeV/c and 30 mrad < $\\theta_{\\pi}$ < 210 mrad in the laboratory frame.

  8. COS Prelaunch Calibration Data Date: March 13, 2008

    E-Print Network [OSTI]

    Colorado at Boulder, University of

    COS Prelaunch Calibration Data Date: March 13, 2008 Document Number: COS-01-0008 Revision: Revision A Contract No.: NAS5-98043 CDRL No.: AV-04 Prepared By: Dr. Erik Wilkinson 5/14/04 Dr. E. Wilkinson, COS Project Scientist, CU Date Reviewed By: Dr. Dennis Ebbets 5/14/04 Dr. D. Ebbets, COS Calibration Scientist

  9. COS NUV Grating Specification Date: August 23, 2000

    E-Print Network [OSTI]

    Colorado at Boulder, University of

    COS NUV Grating Specification Date: August 23, 2000 Document Number: COS-08-0005 Revision: Revision B Contract No.: NAS5-98043 CDRL No.: N/A Prepared By: E. Wilkinson 8-12-99 E. Wilkinson, COS, Calibration Scientist, BATC Date Approved By: J. Andrews 8-25-99 J. Andrews, COS Experiment Manager, CU

  10. NOTICE OF REGULATION REPEAL Date: February 26, 2009

    E-Print Network [OSTI]

    Wu, Shin-Tson

    NOTICE OF REGULATION REPEAL Date: February 26, 2009 REGULATION TITLE: REGULATION NO.: Space Allocation 6C7-7.218 SUMMARY OF REGULATION REPEAL: This regulation is being repealed. The subject matter of regulation 6C7-7.218 is addressed by the Board of Governors. AUTHORITY: BOG Resolution dated January 7, 2003

  11. NOTICE OF REGULATION REPEAL Date: August 6, 2009

    E-Print Network [OSTI]

    Wu, Shin-Tson

    NOTICE OF REGULATION REPEAL Date: August 6, 2009 REGULATION TITLE: REGULATION NO.: Rental Rates 6C7-7.219 SUMMARY OF REGULATION REPEAL: This regulation is noticed for repeal because the subject matter of the regulation is not needed and is out of date. Florida Board of Governors Regulation 17.001 requires

  12. NOTICE OF REGULATION REPEAL Date: July 31, 2009

    E-Print Network [OSTI]

    Wu, Shin-Tson

    NOTICE OF REGULATION REPEAL Date: July 31, 2009 REGULATION TITLE: REGULATION NO.: Proposals to Lease 6C7-7.211 SUMMARY OF REGULATION REPEAL: This regulation is noticed for repeal due to the inclusion of the relevant information in the proposed amendment to regulation UCF-7.209. AUTHORITY: BOG Resolution dated

  13. NOTICE OF REGULATION REPEAL Date: August 6, 2009

    E-Print Network [OSTI]

    Wu, Shin-Tson

    NOTICE OF REGULATION REPEAL Date: August 6, 2009 REGULATION TITLE: REGULATION NO.: Space Measurement 6C7-7.217 SUMMARY OF REGULATION REPEAL: This regulation is noticed for repeal due to the inclusion of the relevant information in the proposed amendment to regulation UCF-7.203. AUTHORITY: BOG Resolution dated

  14. NOTICE OF REGULATION REPEAL Date: August 6, 2009

    E-Print Network [OSTI]

    Wu, Shin-Tson

    NOTICE OF REGULATION REPEAL Date: August 6, 2009 REGULATION TITLE: REGULATION NO.: Definitions 6C7-7.204 SUMMARY OF REGULATION REPEAL: This regulation is noticed for repeal due to the inclusion of the relevant information in the proposed amendment to regulation UCF-7.203. AUTHORITY: BOG Resolution dated January 7, 2003

  15. HAZARDOUS MATERIAL SAFETY Effective Date: January 1, 1992

    E-Print Network [OSTI]

    Cui, Yan

    HAZARDOUS MATERIAL SAFETY PROCEDURES Effective Date: January 1, 1992 Revised Date: March 1993 UT Memphis shall implement a program that protects its employees from hazardous chemical in accordance with Section 1910.1200 of the Occupational Safety and Health Act (OSHA), entitled ³Hazard Communication

  16. Chronological information and uncertainty Radiocarbon dating & calibration -Paula Reimer

    E-Print Network [OSTI]

    Sengun, Mehmet Haluk

    uncertainty · Estimated ± 1 - 2 (± 8-32 years) · Measured off-line ± 0.2 (± 2) - ok in gas counting systems.17 (lab error multiplier) #12;14C calibration uncertainties Animation: M. Blaauw #12;Constant initial 14C interpol. Too much weight on individual dates? #12;Which age-depth model? 800 cm core 9 14 C dates

  17. An early date for cattle from Namaqualand, South Africa

    E-Print Network [OSTI]

    An early date for cattle from Namaqualand, South Africa: implications for the origins of herding in southern Africa Jayson Orton1 , Peter Mitchell2 , Richard Klein3 , Teresa Steele4 & K. Ann Horsburgh5 When did cattle come to South Africa? Radiocarbon dates on a newly found cow horn indicates a time

  18. Material Stock Requests 9.1 Version Date: April 2013

    E-Print Network [OSTI]

    Material Stock Requests 9.1 HCSD Version Date: April 2013 Revision Date: April 2013 #12;Training be responsible to take all appropriate fail-safe, backup, redundancy and other measures to ensure the safe use Guide HCSD Page iii Table of Contents Material Stock Requests HCSD

  19. Revision Date 01.11.13 PROCUREMENT SERVICES -LOGISTICS

    E-Print Network [OSTI]

    Crews, Stephen

    Revision Date 01.11.13 PROCUREMENT SERVICES - LOGISTICS Reading and Reconciling an ePro and MMD with your FACSID. Prerequisites: None Find Help: Email logistics_team@unc.edu #12;Procurement Services - Logistics Reading and Reconciling an ePro and MMD Statement Revision Date 01.11.13 Page 2 of 6 Departmental

  20. Explorative study of African Americans and internet dating 

    E-Print Network [OSTI]

    Spates, Kamesha Sondranek

    2005-02-17

    -1 EXPLORATIVE STUDY OF AFRICAN AMERICANS AND INTERNET DATING A Thesis by KAMESHA SONDRANEK SPATES Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE December 2004 Major Subject: Sociology EXPLORATIVE STUDY OF AFRICAN AMERICANS AND INTERNET DATING A Thesis by KAMESHA SONDRANEK SPATES Submitted to Texas A...

  1. York University Grants -Fiscal Year 2006-2007 Researcher Project Title Funder Total Funding Start Date End Date

    E-Print Network [OSTI]

    Business Ethics Research Network (CBERN) Nuclear Waste Management Organization (NWMO) $25,000 12/1/2006 12York University Grants - Fiscal Year 2006-2007 Researcher Project Title Funder Total Funding Start - Fiscal Year 2006-2007 Researcher Project Title Funder Total Funding Start Date End Date Ceddia, Rolando

  2. Graduate CertifiCate CurriCulum Date: ______________________________________

    E-Print Network [OSTI]

    Stuart, Steven J.

    Graduate CertifiCate CurriCulum Date: ______________________________________ Name will complete a Certificate Curriculum available at: http://www.grad.clemson.edu/f-general.html or http Curriculum will be retained in the department issuing the certificate and immediately forwarded

  3. Romantic regressions : an analysis of behavior in online dating systems

    E-Print Network [OSTI]

    Fiore, Andrew Rocco Tresolini, 1979-

    2004-01-01

    Online personal advertisements have shed their stigma as matchmakers for the awkward to claim a prominent role in the social lives of millions of people. Web sites for online dating allow users to post lengthy personal ...

  4. Limitation Date and Time Total Wind SCE Plus CSGI Reserves...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Limitation Date and Time Total Wind SCE Plus CSGI Reserves Deployed Reserves Held Reserves Deployed Percent 1182015 3:00 718 -1092 -1100 -99% 262015 12:14 925 -1096 -1100 -99%...

  5. DATE A DAtabase of TIM Barrel 2.1 Introduction......................................................................................

    E-Print Network [OSTI]

    Babu, M. Madan

    24 DATE ­ A DAtabase of TIM Barrel Enzymes 2.1 Introduction...................................................................................... 2.2 Objective and salient features of the database .................................... 2.2.1 Choice on the database............................................... 2.4 Features

  6. Publish date: 06/27/2011 ECE 3311: Electronics I

    E-Print Network [OSTI]

    Gelfond, Michael

    Publish date: 06/27/2011 ECE 3311: Electronics I Credit / Contact hours: 3 / 3 Course coordinator, Oxford University Press 2010. (Recommended) Catalog description: Introduction to electronic devices, amplifiers, and electronic systems. Principles of electronic circuit design and analysis. Pre

  7. Title: EPA's National Environmental Education Program Date: October 25, 2012

    E-Print Network [OSTI]

    Walter, M.Todd

    Title: EPA's National Environmental Education Program Hosts: Date: October 25, 2012 Marianne Krasny American Association for Environmental Education EECapacity, EPA's national environmental education training program, applies social innovation theory to address the question: How is environmental education

  8. FIXED PRICE RESIDUAL FUNDS POLICY Policy dated March 29, 1999

    E-Print Network [OSTI]

    Weston, Ken

    FIXED PRICE RESIDUAL FUNDS POLICY Policy dated March 29, 1999 After completion of all deliverables in this process. May 1, 1999 Amendment to Policy · The first $75,000 of the residual balance will be transferred

  9. Economics, Quantitative Emphasis BA, 2015-2016 Name ID# Date

    E-Print Network [OSTI]

    Barrash, Warren

    Economics, Quantitative Emphasis BA, 2015-2016 Name ID# Date Course Number and Title Credits Quantitative Methods in Economics 3 FF ECON 422 Econometrics 3 Upper-division economics courses 16 MATH 175

  10. CRITICAL CONFIGURATION FOR BERYLLIUM REFLECTED ASSEMBLIES OF U(93.15)O2 FUEL RODS (1.506-CM PITCH AND 7-TUBE CLUSTERS)

    SciTech Connect (OSTI)

    Margaret A. Marshall

    2012-05-01

    A series of critical experiments were completed in 1962-1965 at Oak Ridge National Laboratory’s Critical Experiments Facility in support of the Medium-Power Reactor Experiments (MPRE) program. In the late 1950’s efforts were made to study “power plants for the production of electrical power in space vehicles”. The MPRE program was a part of those efforts and studied the feasibility of a stainless steel system, boiling potassium 1 MW(t), or about 140 kW(e), reactor. The program was carried out in [fiscal years] 1964, 1965, and 1966. A summary of the program’s effort was compiled in 1967. The delayed critical experiments were a mockup of a small, potassium-cooled space power reactor for validation of reactor calculations and reactor physics methods. Initial experiments, performed in November and December of 1962, consisted of a core of 253 unmoderated stainless steel tubes, each containing 26 UO2 fuel pellets, surrounded by a graphite reflector. Measurements were made to determine critical reflector arrangements, fission-rate distributions, and cadmium ratio distributions. “The [assemblies were built] on [a] vertical assembly machine so that the movable part was the core and bottom reflector.” The first two experiments in the series were evaluated in HEU-COMP-FAST-001 (SCCA-FUND-EXP-001) and HEU-COMP-FAST-002 (SCCA-FUND-EXP-002). The first experiment had the 253 fuel tubes packed tightly into a 22.87 cm outside diameter (OD) core tank (References 1 and 2). The second experiment in the series, performed in early 1963, had the 253 fuel tubes at a 1.506-cm triangular lattice in a 25.96 cm OD core tank and graphite reflectors on all sides. The third set of experiments in the series, performed in mid-1963, which is studied in this evaluation, used beryllium reflectors. The beryllium reflected system was the preferred reactor configuration for this application because of the small thickness of the reflector. The two core configurations had the 253 fuel tubes at a 1.506-cm triangular lattice and arranged in 7-tube clusters. The experiments have been determined to represent acceptable benchmark experiments. Information for this evaluation was compiled from published reports on all three parts of the experimental series (Reference 1-5) and the experimental logbook as well as from communication with the experimenter, John T. Mihalczo.

  11. Cross-Sections of Large-Angle Hadron Production in Proton- and Pion-Nucleus Interactions I: Beryllium Nuclei and Beam Momenta of +8.9 Gev/c and -8.0 Gev/c

    E-Print Network [OSTI]

    The HARP-CDP group; :; A. Bolshakova; I. Boyko; G. Chelkov; D. Dedovitch; A. Elagin; M. Gostkin; S. Grishin; A. Guskov; Z. Kroumchtein; Yu. Nefedov; K. Nikolaev; A. Zhemchugov; F. Dydak; J. Wotschack A. De Min; V. Ammosov; V. Gapienko; V. Koreshev; A. Semak; Yu. Sviridov; E. Usenko; V. Zaets

    2009-06-23

    We report on double-differential inclusive cross-sections of the production of secondary protons, deuterons, and charged pions and kaons, in the interactions with a 5% nuclear interaction length thick stationary beryllium target, of a +8.9 GeV/c proton and pion beam, and a -8.0 GeV/c pion beam. Results are given for secondary particles with production angles between 20 and 125 degrees.

  12. Comparison of Geant4 hadron generation with data from the interactions with beryllium nuclei of +8.9 GeV/c protons and pions, and of -8 GeV/c pions

    E-Print Network [OSTI]

    A. Bolshakova

    2008-04-18

    Hadron generation in the Geant4 simulation tool kit is compared with inclusive spectra of secondary protons and pions from the interactions with beryllium nuclei of +8.9 GeV/c protons and pions, and of -8.0 GeV/c pions. The data were taken in 2002 at the CERN Proton Synchrotron with the HARP spectrometer. We report on significant disagreements between data and simulated data especially in the polar-angle distributions of secondary protons and pions.

  13. Large-angle production of charged pions by 3 GeV/c - 12.9 GeV/c protons on beryllium, aluminium and lead targets

    E-Print Network [OSTI]

    HARP Collaboration

    2007-09-21

    Measurements of the double-differential $\\pi^{\\pm}$ production cross-section in the range of momentum $100 \\MeVc \\leq p beryllium, proton--aluminium and proton--lead collisions are presented. The data were taken with the HARP detector in the T9 beam line of the CERN PS. The pions were produced by proton beams in a momentum range from 3 \\GeVc to 12.9 \\GeVc hitting a target with a thickness of 5% of a nuclear interaction length. The tracking and identification of the produced particles was performed using a small-radius cylindrical time projection chamber (TPC) placed inside a solenoidal magnet. Incident particles were identified by an elaborate system of beam detectors. Results are obtained for the double-differential cross-sections at six incident proton beam momenta (3 \\GeVc, 5 \\GeVc, 8 \\GeVc, 8.9 \\GeVc (Be only), 12 \\GeVc and 12.9 \\GeVc (Al only)) and compared to previously available data.

  14. An Astronomical View-point on the Easter Date

    E-Print Network [OSTI]

    Ovidiu Vaduvescu

    2004-04-05

    Old algorithms are still in use nowadays setting the Easter date accordingly to some elements giving the Spring Equinox and the New Moon for a given year. At least two different approaches (by the Orthodox and Catholic Churches) provide different results, most of the times different than the actual moments given by the two astronomical phenomena. A new algorithm built accordingly to the Niceea rule and based on some simple astronomical formulas is presented. It is proposed to replace the old different approaches, in order to celebrate the Easter at the same common date. A Windows program is provided, together with a table listing the Easter date between the years 1950-2050 calculated using the Orthodox, Catholic and the Astronomical approaches.

  15. Adv. Fossil Solicitation Part I Due Date | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels DataEnergy Webinar:I Due Date Adv. Fossil Solicitation Part I Due Date

  16. Adv. Fossil Solicitation Part I Due Date | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels DataEnergy Webinar:I Due Date Adv. Fossil Solicitation Part I Due DateAdv.

  17. Adv. Fossil Solicitation Part II Due Date | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels DataEnergy Webinar:I Due Date Adv. Fossil Solicitation Part I Due DateAdv.II

  18. On-Line Measurement of Beryllium, Chromium, and Mercury by Using Aerosol Beam Focused Laser-Induced Plasma Spectrometer and TIme-Integrated Filter Sampling and Reference Method

    SciTech Connect (OSTI)

    Cheng, M.-D.; Vannice, R.W.

    2003-05-20

    A novel real-time monitor for aerosol particles has been developed by the Oak Ridge National Laboratory (ORNL). The instrument is designed to perform in-situ measurement for the elemental composition of aerosol particles in flue gas. They had tested this monitor at the Eastman Chemical Company in July 2001 taking advantage of the emissions from a waste incinerator operated by the company as the background. To investigate the behavior and response of the monitor under simulated/known conditions, stock solutions of prepared metal concentration(s) were nebulized to provide spikes for the instrument testing. Strengths of the solutions were designed such that a reference method (RM) was able to collect sufficient material on filter samples that were analyzed in a laboratory to produce 30-minute average data points. Parallel aerosol measurements were performed by using the ORNL instrument. Recorded signal of an individual element was processed and the concentration calculated from a calibration curve established prior to the campaign. RM data were able to reflect the loads simulated in the spiked waste stream. However, it missed one beryllium sample. The possibility of bias exists in the RM determination of chromium that could lead to erroneous comparison between the RM and the real-time monitoring data. With the real-time detection capability, the ORNL instrument was able to reveal the emission variation by making seven measurements within a 30-minute cycle. The ability of the instrument also enables the reconstruction of the baseline chromium emission concentration. The measurements for mercury by both methods are in good agreement.

  19. On-Line Measurements of Beryllium, Chromium, and Mercury by Using Aerosol Beam Focused Laser-Induced Plasma Spectrometer and Time-Integrated Filter Sampling Reference Method

    SciTech Connect (OSTI)

    Cheng, M.D.

    2003-05-15

    A novel real-time monitor for aerosol particles has been developed by the Oak Ridge National Laboratory (ORNL). The instrument is designed to perform in-situ measurement for the elemental composition of aerosol particles in flue gas. We had tested this monitor at the Eastman Chemical Company in July 2001 taking advantage of the emissions from a waste incinerator operated by the company as the background. To investigate the behavior and response of the monitor under simulated/known conditions, stock solutions of prepared metal concentration(s) were nebulized to provide spikes for the instrument testing. Strengths of the solutions were designed such that a reference method (RM) was able to collect sufficient material on filter samples that were subsequently analyzed in a laboratory to produce 30-minute average data points. Parallel aerosol measurements were performed by using the ORNL instrument. Recorded signal of an individual element was processed and the concentration calculated from a calibration curve established prior to the campaign. RM data were able to reflect the loads simulated in the spiked waste stream. However, it missed one beryllium sample. The possibility of bias exists in the RM determination of chromium that could lead to erroneous comparison between the RM and the real-time monitoring data. With the real-time detection capability, the ORNL instrument was able to reveal the emission variation by making seven measurements within a 30-minute cycle. The ability of the instrument also enables the reconstruction of the baseline chromium emission concentration. The measurements for mercury by both methods are in good agreement.

  20. Shock wave compression of hexagonal-close-packed metal single crystals: Time-dependent, anisotropic elastic-plastic response of beryllium

    SciTech Connect (OSTI)

    Winey, J. M.; Gupta, Y. M.

    2014-07-21

    Understanding and modeling the response of hcp metals to high stress impulsive loading is challenging because the lower crystal symmetry, compared to cubic metals, results in a significantly more complex material response. To gain insight into the inelastic deformation of hcp metals subjected to high dynamic stresses, shock wave compression of single crystals provides a useful approach because different inelastic deformation mechanisms can be examined selectively by shock compression along different crystal orientations. As a representative example, we report, here, on wave propagation simulations for beryllium (Be) single crystals shocked along the c-axis, a-axis, and several low-symmetry directions to peak stresses reaching 7?GPa. The simulations utilized a time-dependent, anisotropic material model that incorporated dislocation dynamics, deformation twinning, and shear cracking based descriptions of inelastic deformation. The simulation results showed good overall agreement with measured wave profiles for all the different crystal orientations examined [Pope and Johnson, J. Appl. Phys. 46, 720 (1975)], including features arising from wave mode coupling due to the highly anisotropic inelastic response of Be. This good agreement demonstrates that the measured profiles can be understood in terms of dislocation slip along basal, prismatic, and pyramidal planes, together with deformation twinning along (101{sup ¯}2) planes. Our results show that the response of shocked Be single crystals involves the simultaneous operation of multiple, distinct inelastic deformation mechanisms for all orientations except the c-axis. For shocked c-axis Be, the measured wave profiles do not provide good discrimination between pyramidal slip and other inelastic deformation mechanisms, such as shear cracking. The findings presented here provide insight into the complex inelastic deformation response of shocked Be single crystals and are expected to be useful for other hcp crystals. More broadly, the present work demonstrates the potential of shock wave propagation along low-symmetry directions to examine, and discriminate between, different inelastic deformation mechanisms in crystalline solids.

  1. Christopher Viton Fiscal YearEnd Information and Important Cutoff Dates

    E-Print Network [OSTI]

    Walker, Lawrence R.

    Christopher Viton Fiscal YearEnd Information and Important Cutoff Dates 1 Purchasing Date: March 19, 2015 Re: Fiscal YearEnd Information and Important Cutoff Dates information and cutoff dates to be followed for the end of fiscal year 2015. While many managers are familiar

  2. Materials and Energy Date: June 10th, 2015

    E-Print Network [OSTI]

    Kaus, Boris

    Materials and Energy Date: June 10th, 2015 Time: 9:15am Location: Seminar room MAINZ, Staudinger Weg 9, third floor, room 03-122 "Charge transport and recombination in organic solar cells" Dr. G. A, 55128 Mainz, Germany In solar cells free charge carriers can recombine both via bimolecular (Langevin

  3. Time and Labor -HR Staff -HCSD Version Date: June 2012

    E-Print Network [OSTI]

    Time and Labor - HR Staff - HCSD Version Date: June 2012 #12;COPYRIGHT & TRADEMARKS Copyright create a risk of personal injury. If you use this software in dangerous applications, then you shall Guide Time and Labor - HR Staff - HCSD Page iii Table of Contents Time and Labor - HR Staff - HCSD

  4. Time and Labor -Timekeepers -Version Date: July 2012

    E-Print Network [OSTI]

    Time and Labor - Timekeepers - LSUNO V9.1 Version Date: July 2012 #12;COPYRIGHT & TRADEMARKS create a risk of personal injury. If you use this software in dangerous applications, then you shall Guide Time and Labor - Timekeepers - LSUNO V9.1 Page iii Table of Contents Time and Labor - Timekeepers

  5. Risk Management Policy Date: 08/01/2013

    E-Print Network [OSTI]

    Brierley, Andrew

    Risk Management Policy Date: 08/01/2013 Approving body: Risk Management Group Version number: 2013.01 Steward: Brian Kennedy, Risk Adviser Principles Through a process of Risk Management, the University objectives. In particular, Risk Management has the aim of helping to protect the University's reputation

  6. Publish date: 06/27/2011 ECE 3362: Microcontrollers

    E-Print Network [OSTI]

    Gelfond, Michael

    systems - 3 hours Clocks and reset generator - 2 hour Tests and reviews - 3 hours #12;Publish date: 06/27/2011 ECE 3362: Microcontrollers Credit / Contact hours: 3/3 Course coordinator and Information Storage ­ 4 hours Mathematics of computers ­ 2 hours Elementary computer operations - 2 hours

  7. Peer Review Plan Date: 6/27/12

    E-Print Network [OSTI]

    is a primary source of drinking water for about 800,000 people in northeastern Kansas. Water released fromPeer Review Plan Date: 6/27/12 Source Center: U.S. Geological Survey (USGS) Kansas Water Science Information. Timing of Review (Including Deferrals): April - May 2012. Deferrals are not anticipated

  8. Bachelor of Science, Geophysics, 2013-2014 Name ID# Date

    E-Print Network [OSTI]

    Barrash, Warren

    Bachelor of Science, Geophysics, 2013-2014 Name ID# Date General Degree Requirements Residency with Lab 4 COMPSCI 115 Introduction to C 2 GEOPH 201 Seeing the Unseen: an Introduction to Geophysics 4 GEOPH 300 Physics of the Earth 3 GEOPH 305 Applied Geophysics 3 GEOPH 420 Geophysical Applications

  9. DATE 13 Janual'y 1969 PSEP Power Transient Analysis

    E-Print Network [OSTI]

    Rathbun, Julie A.

    will probably not exceed 29 volts during sunrise. SOLAR PANEL CHARACTERISTICS The time dependence of the solar;DATE The solar panel array I-V curves are shown in Figure 3. These curves show an open circuit voltage the system. Any degradation of the solar panel could delay first day operation of EASEP until very near

  10. History BA, 2015-2016 Name ID# Date

    E-Print Network [OSTI]

    Barrash, Warren

    History BA, 2015-2016 Name ID# Date Course Number and Title Credits Completed InProgress Future Government (recommended) 3 DLS Social Sciences course in a second field other than history 3 One year of college level foreign language in sequence Language equivalency required by the history department

  11. History, Secondary Education BA, 2015-2016 Name ID# Date

    E-Print Network [OSTI]

    Barrash, Warren

    History, Secondary Education BA, 2015-2016 Name ID# Date Course Number and Title Credits Completed equivalency required by the history department will be determined by the department of modern languages or the history department. 8 HIST 111/211 United States History 3 HIST 112/212 United States History 3 CID HIST

  12. Mathematics BS, 2015-2016 Name ID# Date

    E-Print Network [OSTI]

    Barrash, Warren

    Mathematics BS, 2015-2016 Name ID# Date Course Number and Title Credits Completed In Progress and Foundational Mathematics I 3 MATH 275 Multivariable and Vector Calculus 4 CID MATH 287 Communication in the Mathematical Sciences 3 MATH 305 Intro to Abstract Algebra & Number Theory 3 MATH 314 Foundations of Analysis 3

  13. Applied Mathematics BS, 2015-2016 Name ID# Date

    E-Print Network [OSTI]

    Barrash, Warren

    Applied Mathematics BS, 2015-2016 Name ID# Date Course Number and Title Credits Completed Mathematics I 3 MATH 275 Multivariable and Vector Calculus 4 CID MATH 287 Communication in the Mathematical To Computational Mathematics 3 FF MATH 401 Senior Thesis in the Mathematical Sciences 1 MATH 465 Numerical Analysis

  14. Usage Policies Notebook for 2 inch Nano Furnace Revision date

    E-Print Network [OSTI]

    Mease, Kenneth D.

    Usage Policies Notebook for 2 inch Nano Furnace Revision date September 2014 #12;2 Emergency Plan for 2 inch Nano Furnace Standard Operating Procedures for Emergencies Contact information Person Phone;4 Usage Policies for 2 inch Nano Furnace Standard policies for usage The nano furnace can accept up to 2

  15. Marketing BBA, 2015-2016 Name ID# Date

    E-Print Network [OSTI]

    Barrash, Warren

    Marketing BBA, 2015-2016 Name ID# Date Course Number and Title Credits Completed In Progress Future MGMT 301 Leadership Skills 3 MKTG 301 Principles of Marketing 3 MKTG 307 Customer Behavior 3 MKTG 315 Marketing Research 3 MKTG 321 Professional Selling 3 MKTG 425 Marketing Planning Applications 3 PSYC 101

  16. NOTICE OF REGULATION REPEAL Date: May 5, 2009

    E-Print Network [OSTI]

    Wu, Shin-Tson

    NOTICE OF REGULATION REPEAL Date: May 5, 2009 REGULATION TITLE: REGULATION NO.: Student Rights and Responsibilities 6C7-5.003 SUMMARY OF REGULATION REPEAL: This regulation is being repealed. New regulations OF PERSON WHO INITIATED REGULATION REPEAL: Patricia MacKown, Director, Office of Student Rights

  17. NOTICE OF REGULATION REPEAL Date: August 6, 2009

    E-Print Network [OSTI]

    Wu, Shin-Tson

    NOTICE OF REGULATION REPEAL Date: August 6, 2009 REGULATION TITLE: REGULATION NO.: Purchase and Sale of Real Property 6C7-7.202 SUMMARY OF REGULATION REPEAL: This regulation is not necessary and does REGULATION REPEAL: Regulations Administrator COMMENTS CONCERNING THE REGULATION REPEAL SHOULD BE SUBMITTED

  18. NOTICE OF REGULATION REPEAL Date: August 6, 2009

    E-Print Network [OSTI]

    Wu, Shin-Tson

    NOTICE OF REGULATION REPEAL Date: August 6, 2009 REGULATION TITLE: REGULATION NO.: Code Compliance in Lease Space 6C7-7.207 SUMMARY OF REGULATION REPEAL: This regulation is noticed for repeal due to the inclusion of the relevant information in the proposed amendment to regulation UCF-7.203. AUTHORITY: BOG

  19. NOTICE OF REGULATION REPEAL Date: August 6, 2009

    E-Print Network [OSTI]

    Wu, Shin-Tson

    NOTICE OF REGULATION REPEAL Date: August 6, 2009 REGULATION TITLE: REGULATION NO.: Approval of Real Property Leases 6C7-7.205 SUMMARY OF REGULATION REPEAL: This regulation is noticed for repeal due to the inclusion of the relevant information in the proposed amendment to regulation UCF-7.203. AUTHORITY: BOG

  20. NOTICE OF REGULATION REPEAL Date: June 9, 2014

    E-Print Network [OSTI]

    Pattanaik, Sumanta N.

    NOTICE OF REGULATION REPEAL Date: June 9, 2014 REGULATION TITLE: REGULATION NO.: Tenure UCF-3.011 SUMMARY OF REGULATION REPEAL: This regulation is proposed for repeal because the material contained in this regulation has been moved to regulation UCF-3.015. AUTHORITY: BOG Regulations 1.001 NAME OF PERSON WHO

  1. NOTICE OF REGULATION REPEAL Date: July 1, 2010

    E-Print Network [OSTI]

    Wu, Shin-Tson

    NOTICE OF REGULATION REPEAL Date: July 1, 2010 REGULATION TITLE: REGULATION NO.: Fees for Testing, Certification, Inspection and UCF-8.004 Services SUMMARY OF REGULATION REPEAL: This regulation is proposed for repeal because the material contained in this regulation has been updated and adopted as rule 6C7

  2. NOTICE OF REGULATION REPEAL Date: July 9, 2009

    E-Print Network [OSTI]

    Wu, Shin-Tson

    NOTICE OF REGULATION REPEAL Date: July 9, 2009 REGULATION TITLE: REGULATION NO.: Grievance Procedures for Non-unit Faculty and UCF-3.0132 A&P Staff Members SUMMARY OF REGULATION REPEAL: This regulation is being repealed. New regulations are being adopted that will cover the subject matter. AUTHORITY

  3. NOTICE OF REGULATION REPEAL Date: July 1, 2010

    E-Print Network [OSTI]

    Wu, Shin-Tson

    NOTICE OF REGULATION REPEAL Date: July 1, 2010 REGULATION TITLE: REGULATION NO.: Florida Solar Energy Center Operations UCF-8.001 SUMMARY OF REGULATION REPEAL: This regulation is proposed for repeal, because the material contained in this regulation has been updated and adopted as rule 6C7-8.006, F

  4. NOTICE OF REGULATION REPEAL Date: July 31, 2009

    E-Print Network [OSTI]

    Wu, Shin-Tson

    NOTICE OF REGULATION REPEAL Date: July 31, 2009 REGULATION TITLE: REGULATION NO.: Exception to Competitive Bidding for Leased Space 6C7-7.220 SUMMARY OF REGULATION REPEAL: This regulation is noticed for repeal due to the inclusion of the relevant information in the proposed amendment to regulation UCF-7

  5. NOTICE OF REGULATION REPEAL Date: July 1, 2010

    E-Print Network [OSTI]

    Wu, Shin-Tson

    NOTICE OF REGULATION REPEAL Date: July 1, 2010 REGULATION TITLE: REGULATION NO.: Solar Thermal and Photovoltaic System UCF-8.005 Standards and Certification SUMMARY OF REGULATION REPEAL: This regulation is proposed for repeal because the material contained in this regulation has been updated and adopted as rule

  6. NOTICE OF REGULATION REPEAL Date: July 31, 2009

    E-Print Network [OSTI]

    Wu, Shin-Tson

    NOTICE OF REGULATION REPEAL Date: July 31, 2009 REGULATION TITLE: REGULATION NO.: Evaluation of Lease Proposals 6C7-7.212 SUMMARY OF REGULATION REPEAL: This regulation is noticed for repeal due to the inclusion of the relevant information in the proposed amendment to regulation UCF-7.209. AUTHORITY: BOG

  7. NOTICE OF REGULATION REPEAL Date: August 6, 2009

    E-Print Network [OSTI]

    Wu, Shin-Tson

    NOTICE OF REGULATION REPEAL Date: August 6, 2009 REGULATION TITLE: REGULATION NO.: Standard Lease Agreement Form 6C7-7.206 SUMMARY OF REGULATION REPEAL: This regulation is noticed for repeal due to the inclusion of the relevant information in the proposed amendment to regulation UCF-7.203. AUTHORITY: BOG

  8. NOTICE OF REGULATION REPEAL Date: May 8, 2009

    E-Print Network [OSTI]

    Wu, Shin-Tson

    NOTICE OF REGULATION REPEAL Date: May 8, 2009 REGULATION TITLE: REGULATION NO.: Confidential Information Policy for Faculty 6C73.030 SUMMARY OF REGULATION REPEAL: This regulation is being repealed NAME OF PERSON WHO INITIATED REGULATION REPEAL: Mark Roberts, Director, Human Resources COMMENTS

  9. NOTICE OF REGULATION REPEAL Date: May 24, 2010

    E-Print Network [OSTI]

    Wu, Shin-Tson

    NOTICE OF REGULATION REPEAL Date: May 24, 2010 REGULATION TITLE: REGULATION NO.: Conflict of Interest 6C7-3.008 SUMMARY OF REGULATION REPEAL: This regulation is proposed for repeal, because the material contained in this regulation has been moved to regulation UCF-3.018 AUTHORITY: BOG Regulation 1

  10. NOTICE OF REGULATION REPEAL Date: June 9, 2014

    E-Print Network [OSTI]

    Pattanaik, Sumanta N.

    NOTICE OF REGULATION REPEAL Date: June 9, 2014 REGULATION TITLE: REGULATION NO.: Promotion of Tenured and Tenure-earning faculty UCF-3.017 SUMMARY OF REGULATION REPEAL: This regulation is proposed for repeal because the material contained in this regulation has been moved to regulation UCF-3

  11. BOARD TEST SHEET HDI LINK CARD NO. DATE

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    BOARD TEST SHEET HDI LINK CARD NO. DATE: Changes on card as delivered from loading company at the rear edge of the board. Verify that all mounting screws are loaded. Crowbar Overvoltage Trip Test Test high limit. Use bench top power supply with test clips on ends of leads. Clip supply leads directly

  12. Visual Art BA, 2015-2016 Name ID# Date

    E-Print Network [OSTI]

    Barrash, Warren

    Visual Art BA, 2015-2016 Name ID# Date Course Number and Title Credits Completed InProgress Future Survey of Western Art I 3 DLL Literature and Humanities 3-4 DLS Social Sciences course in a first field 3 DLS Social Sciences course in a second field 3 ART 107, 108 Art Foundations I and II 6 ART 109

  13. Peer Review Plan Date: 11/1/2012

    E-Print Network [OSTI]

    Peer Review Plan Date: 11/1/2012 Source Center: U.S. Geological Survey (USGS) Texas Water Science a cancer risk assessment associated with incidental ingestion exposure to polycyclic aromatic hydrocarbons cancer risk resulting from lifetime exposures to PAH-contaminated soil and dust via non-dietary ingestion

  14. Cluster Report or Survey Description Date due to IEA Responsible

    E-Print Network [OSTI]

    Fernandez, Eduardo

    Cluster Report or Survey Description Date due to IEA Responsible person(s) Comments Reports IEA will activate and distribute survey in August 2011 Summer Activity Report Faculty activity report for summer, 2012 December 20, 2012 Academic Department Heads By October 8, 2012, data is provided by IEA

  15. ETSU Emergency Preparedness Plan (EPP) July 2012 ________________________________Date___________________

    E-Print Network [OSTI]

    Karsai, Istvan

    #12;#12;ETSU Emergency Preparedness Plan (EPP) July 2012 1 ________________________________Date the information to ETSU Public Safety (439-4480 or 911 from campus phones) or the local emergency response office action. When the decision has been made to activate the ETSU Emergency Command Center, key personnel

  16. Physics BS, 2015-2016 Name ID# Date

    E-Print Network [OSTI]

    Barrash, Warren

    Physics BS, 2015-2016 Name ID# Date Physics BS Credits Completed In Progress Future ENGL 101 Foundations 3 UF 200 Civic and Ethical Foundations 3 DLM MATH 170 Calculus I 4 DLN PHYS 211, 211L Physics I with Calculus & Lab 5 DLN PHYS 212, 212L Physics II with Calculus & Lab 5 DLV Visual and Performing Arts 3 DLL

  17. Physics BS, Astrophysics Emphasis, 2015-2016 Name ID# Date

    E-Print Network [OSTI]

    Barrash, Warren

    Physics BS, Astrophysics Emphasis, 2015-2016 Name ID# Date Course Number and Title Credits 4 DLN PHYS 211, 211L Physics I with Calculus & Lab 5 DLN PHYS 212, 212L Physics II with Calculus Electronics 4 PHYS 309, 309L Introductory Quantum Physics & Lab 4 PHYS 311 Modern Physics 3 PHYS 325

  18. Building Name: ____________________________________________ Address: __________________________________________ Completed by: ___________________________________________ Date: ______________ File Number: ___________________

    E-Print Network [OSTI]

    input? s Fuel or combustion odors Cooling Tower s Clean? no leaks or overflow? Slime or algae growth air s Actual temperatures supply air mixed air return air outdoor air Coils s Heating fluid discharge temperature T cooling fluid discharge temperature T s Controls (describe) s Condition (note date) Humidifier

  19. Biomedical Engineering Minor, 2015-2016 Name ID# Date

    E-Print Network [OSTI]

    Barrash, Warren

    Biomedical Engineering Minor, 2015-2016 Name ID# Date Course Number and Title Credits Completed InProgress Future BIOL 191 General Biology I 4 BIOL/ME/MSE 477 Biomaterials 3 ENGR 210 Engineering Statics* 3 ME 112 Introduction to Biomedical Engineering 1 ME 356 Introduction to Solid Biomechanics 3 One of the following

  20. Civil Engineering BS, 2015-2016 Name ID# Date

    E-Print Network [OSTI]

    Barrash, Warren

    Civil Engineering BS, 2015-2016 Name ID# Date Course Number and Title Credits Completed In course in a second field* 3 CE 210, 211 Engineering Surveying and Lab 3 CE 280 Civil Engineering Case Studies 2 CE 282 Engineering Practice 3 CE 284 Computational Methods 2 CE 320 Principles of Environmental