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Sample records for neutron science center

  1. Neutron Science Center

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

    Public to have rare opportunity to tour Neutron Science Center May 10, 2011 LANL Rosenfest will celebrate life of LANSCE founder Louis Rosen and offer tour LOS ALAMOS, New Mexico, May 10, 2011-Members of the public will have an unusual opportunity to tour the Los Alamos Neutron Science Center from 1 to 5 p.m. on Friday, May 20, 2011, as part of Rosenfest, a celebration of LANSCE founder Louis - 2 - Rosen and the remarkable facility he conceived. In addition, Rosenfest organizers are offering a

  2. Los Alamos Neutron Science Center | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    Neutron Science Center | National Nuclear Security Administration Facebook Twitter Youtube ... Facilities Los Alamos Neutron Science Center Los Alamos Neutron Science Center ...

  3. Los Alamos Neutron Science Center

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

    capacity and our availability for stockpile stewardship activities," said Kurt Schoenberg, deputy associate director for Experimental Physical Sciences. "The increased...

  4. Los Alamos Neutron Science Center (LANSCE) Nuclear Science Facilities

    SciTech Connect (OSTI)

    Nelson, Ronald Owen; Wender, Steve

    2015-06-19

    The Los Alamos Neutron Science Center (LANSCE) facilities for Nuclear Science consist of a high-energy "white" neutron source (Target 4) with 6 flight paths, three low-energy nuclear science flight paths at the Lujan Center, and a proton reaction area. The neutron beams produced at the Target 4 complement those produced at the Lujan Center because they are of much higher energy and have shorter pulse widths. The neutron sources are driven by the 800-MeV proton beam of the LANSCE linear accelerator. With these facilities, LANSCE is able to deliver neutrons with energies ranging from a milli-electron volt to several hundreds of MeV, as well as proton beams with a wide range of energy, time and intensity characteristics. The facilities, instruments and research programs are described briefly.

  5. Public to have rare opportunity to tour Neutron Science Center

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

    Rosenfest: celebrate Louis Rosen, tour LANSCE Public to have rare opportunity to tour Neutron Science Center Tour attendees can expect to see many facets of the LANSCE, including areas along the linear accelerator beam line, the control room area, and one or more experimental areas. May 10, 2011 Aerial View of Neutron Science Center Aerial View of Neutron Science Center Contact James Rickman Communications Office (505) 665-9203 Email LANL Rosenfest will celebrate life of LANSCE founder Louis

  6. Los Alamos Neutron Science Center | National Nuclear Security

    National Nuclear Security Administration (NNSA)

    Administration Los Alamos Neutron Science Center LANSCE provides the scientific community with intense sources of neutrons supporting both civilian and national security applications. The principal sponsors of LANSCE include the DOE, NNSA, Office of Science and Office of Nuclear Energy, Science and Technology. Users conduct research at state-of-the-art facilities within LANSCE. These facilities include the Isotope Production Facility (IPF); the Lujan Neutron Scattering Center (Lujan Center);

  7. Los Alamos Neutron Science Center gets capacity boost

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

    Neutron Science Center capacity boost Los Alamos Neutron Science Center gets capacity boost The facility can simulate the effects of hundreds or thousands of years of cosmic-ray-induced neutrons in a single hour. December 2, 2010 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los

  8. Lujan Neutron Scattering Center

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

    responds to radiological incident August 27, 2012 The Laboratory is investigating the inadvertent spread of Technetium 99 by employees and contractors at the Lujan Neutron Scattering Center August 27, 2012-The Laboratory is investigating the inadvertent spread of Technetium 99 by employees and contractors at the Lujan Neutron Scattering Center at the Los Alamos Neutron Science Center (LANSCE), a multidisciplinary accelerator facility used for both civilian and national security research. The

  9. Review of the Lujan neutron scattering center: basic energy sciences prereport February 2009

    SciTech Connect (OSTI)

    Hurd, Alan J; Rhyne, James J; Lewis, Paul S

    2009-01-01

    The Lujan Neutron Scattering Center (Lujan Center) at LANSCE is a designated National User Facility for neutron scattering and nuclear physics studies with pulsed beams of moderated neutrons (cold, thermal, and epithermal). As one of five experimental areas at the Los Alamos Neutron Science Center (LANSCE), the Lujan Center hosts engineers, scientists, and students from around the world. The Lujan Center consists of Experimental Room (ER) 1 (ERl) built by the Laboratory in 1977, ER2 built by the Office of Basic Energy Sciences (BES) in 1989, and the Office Building (622) also built by BES in 1989, along with a chem-bio lab, a shop, and other out-buildings. According to a 1996 Memorandum of Agreement (MOA) between the Defense Programs (DP) Office of the National Nuclear Security Agency (NNSA) and the Office of Science (SC, then the Office of Energy Research), the Lujan Center flight paths were transferred from DP to SC, including those in ERI. That MOA was updated in 2001. Under the MOA, NNSA-DP delivers neutron beam to the windows of the target crypt, outside of which BES becomes the 'landlord.' The leveraging nature of the Lujan Center on the LANSCE accelerator is a substantial annual leverage to the $11 M BES operating fund worth approximately $56 M operating cost of the linear accelerator (LINAC)-in beam delivery.

  10. Los Alamos neutron science center nuclear weapons stewardship and unique national scientific capabilities

    SciTech Connect (OSTI)

    Schoenberg, Kurt F

    2010-12-15

    This presentation gives an overview of the Los Alamos Neutron Science Center (LANSCE) and its contributions to science and the nuclear weapons program. LANSCE is made of multiple experimental facilities (the Lujan Center, the Weapons Neutron Research facility (WNR), the Ultra-Cold Neutron facility (UCN), the proton Radiography facility (pRad) and the Isotope Production Facility (IPF)) served by the its kilometer long linear accelerator. Several research areas are supported, including materials and bioscience, nuclear science, materials dynamics, irradiation response and medical isotope production. LANSCE is a national user facility that supports researchers worldwide. The LANSCE Risk Mitigation program is currently in progress to update critical accelerator equipment to help extend the lifetime of LANSCE as a key user facility. The Associate Directorate of Business Sciences (ADBS) plays an important role in the continued success of LANSCE. This includes key procurement support, human resource support, technical writing support, and training support. LANSCE is also the foundation of the future signature facility MARIE (Matter-Radiation Interactions in Extremes).

  11. New Developments in Proton Radiography at the Los Alamos Neutron Science Center (LANSCE)

    SciTech Connect (OSTI)

    Morris, C. L.; Brown, E. N.; Agee, C.; Bernert, T.; Bourke, M. A. M.; Burkett, M. W.; Buttler, W. T.; Byler, D. D.; Chen, C. F.; Clarke, A. J.; Cooley, J. C.; Gibbs, P. J.; Imhoff, S. D.; Jones, R.; Kwiatkowski, K.; Mariam, F. G.; Merrill, F. E.; Murray, M. M.; Olinger, C. T.; Oro, D. M.; Nedrow, P.; Saunders, A.; Terrones, G.; Trouw, F.; Tupa, D.; Vogan, W.; Winkler, B.; Wang, Z.; Zellner, M. B.

    2015-12-30

    An application of nuclear physics, a facility for using protons for flash radiography, was developed at the Los Alamos Neutron Science Center (LANSCE). Protons have proven far superior to high energy x-rays for flash radiography because of their long mean free path, good position resolution, and low scatter background. Although this facility is primarily used for studying very fast phenomena such as high explosive driven experiments, it is finding increasing application to other fields, such as tomography of static objects, phase changes in materials and the dynamics of chemical reactions. The advantages of protons are discussed, data from some recent experiments will be reviewed and concepts for new techniques are introduced.

  12. LOS ALAMOS NEUTRON SCIENCE CENTER CONTRIBUTIONS TO THE DEVELOPMENT OF FUTURE POWER REACTORS

    SciTech Connect (OSTI)

    GAVRON, VICTOR I.; HILL, TONY S.; PITCHER, ERIC J.; TOVESSON, FREDERIK K.

    2007-01-09

    The Los Alamos Neutron Science Center (LANSCE) is a large spallation neutron complex centered around an 800 MeV high-currently proton accelerator. Existing facilities include a highly-moderated neutron facility (Lujan Center) where neutrons between thermal and keV energies are produced, and the Weapons Neutron Research Center (WNR), where a bare spallation target produces neutrons between 0.1 and several hundred MeV.The LANSCE facility offers a unique capability to provide high precision nuclear data over a large energy region, including that for fast reactor systems. In an ongoing experimental program the fission and capture cross sections are being measured for a number of minor actinides relevant for Generation-IV reactors and transmutation technology. Fission experiments makes use of both the highly moderated spallation neutron spectrum at the Lujan Center, and the unmoderated high energy spectrum at WNR. By combininb measurements at these two facilities the differential fission cross section is measured relative to the {sup 235}U(n,f) standard from subthermal energies up to about 200 MeV. An elaborate data acquisition system is designed to deal with all the different types of background present when spanning 10 energy decades. The first isotope to be measured was {sup 237}Np, and the results were used to improve the current ENDF/B-VII evaluation. Partial results have also been obtained for {sup 240}Pu and {sup 242}Pu, and the final results are expected shortly. Capture cross sections are measured at LANSCE using the Detector for Advanced Neutron Capture Experiments (DANCE). This unique instrument is highly efficient in detecting radiative capture events, and can thus handle radioactive samples of half-lives as low as 100 years. A number of capture cross sections important to fast reaction applications have been measured with DANCE. The first measurement was on {sup 237}Np(n,{gamma}), and the results have been submitted for publication. Other capture measurements in progress include {sup 240}Pu and {sup 242}Pu. The United States recently announced the Global Nuclear Energy Partnership (GNEP), with the goal of closing the commercial nuclear fuel cycle while minimizing proliferation risk. GNEP achieves these goals using fast-spectrum nuclear reactors powered by new transmutation fuels that contain significant quantities of minor actinides. The proposed Materials Test Station (MTS) will provide the GNEP with a cost-effective means of obtaining domestic fast-spectrum irradiations of advanced transmutation fuel forms and structural materials, which is an important step in the fuels qualification process. The MTS will be located at the LANSCE, and will be driven by a 1.08-MW proton beam. Th epeak neutron flux in the irradiation region is 1.67 x 10{sup 15} n/cm{sup 2}/s, and the energy spectrum is similar to that of a fast reactor, with the addition of a high-energy tail. The facility is expected to operate at least 4,400 hours per year. Fuel burnup rates will exceed 4% per year, and the radiation damage rate in iron will be 18 dpa (displacements per atom) per year. The construction cost is estimated to be $73M (including 25% contingency), with annual operating costs in the range of $6M to $10M. Appropriately funded, the MTS could begin operation in 2010.

  13. New Developments in Proton Radiography at the Los Alamos Neutron Science Center (LANSCE)

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Morris, C. L.; Brown, E. N.; Agee, C.; Bernert, T.; Bourke, M. A. M.; Burkett, M. W.; Buttler, W. T.; Byler, D. D.; Chen, C. F.; Clarke, A. J.; et al

    2015-12-30

    An application of nuclear physics, a facility for using protons for flash radiography, was developed at the Los Alamos Neutron Science Center (LANSCE). Protons have proven far superior to high energy x-rays for flash radiography because of their long mean free path, good position resolution, and low scatter background. Although this facility is primarily used for studying very fast phenomena such as high explosive driven experiments, it is finding increasing application to other fields, such as tomography of static objects, phase changes in materials and the dynamics of chemical reactions. The advantages of protons are discussed, data from some recentmore » experiments will be reviewed and concepts for new techniques are introduced.« less

  14. Neutron and Nuclear Science News

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

    News Recent news and events related to neutron and nuclear science at LANSCE. Neutron and Nuclear Science News Nuclear and Materials Science Research at LANSCE Nuclear science...

  15. Nanoscale Science Research Centers (NSRCs) | U.S. DOE Office...

    Office of Science (SC) Website

    Nanoscale Science Research Centers (NSRCs) User Facilities User Facilities Home User ... X-Ray Light Sources Neutron Scattering Facilities Nanoscale Science Research Centers ...

  16. Energy Frontier Research Center Center for Materials Science of Nuclear

    Office of Scientific and Technical Information (OSTI)

    Fuels (Technical Report) | SciTech Connect Frontier Research Center Center for Materials Science of Nuclear Fuels Citation Details In-Document Search Title: Energy Frontier Research Center Center for Materials Science of Nuclear Fuels Scientific Successes * The first phonon density of states (PDOS) measurements for UO2 to include anharmonicity were obtained using time-of-flight inelastic neutron scattering at the Spallation Neutron Source (SNS), and an innovative, experimental-based

  17. Energy Frontier Research Center Center for Materials Science of Nuclear

    Office of Scientific and Technical Information (OSTI)

    Fuels (Technical Report) | SciTech Connect Technical Report: Energy Frontier Research Center Center for Materials Science of Nuclear Fuels Citation Details In-Document Search Title: Energy Frontier Research Center Center for Materials Science of Nuclear Fuels Scientific Successes * The first phonon density of states (PDOS) measurements for UO2 to include anharmonicity were obtained using time-of-flight inelastic neutron scattering at the Spallation Neutron Source (SNS), and an innovative,

  18. Neutron and Nuclear Science News

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

    News Recent news and events related to neutron and nuclear science at LANSCE. Neutron and Nuclear Science News Links Neutron and Nuclear Science News Media Links Profiles Events at LANSCE

  19. Los Alamos National Laboratory * Est. 1943 The Pulse-Newsletter of the Los Alamos Neutron Science Center and Accelerator Operations and Technology Division

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

    1 Los Alamos National Laboratory * Est. 1943 The Pulse-Newsletter of the Los Alamos Neutron Science Center and Accelerator Operations and Technology Division I N S I D E 2 From Alex's Desk 3 lujAn Center reseArCh FeAtureD on Cover oF Langmuir 4 FunCtionAl oxiDes unDer extreme ConDi- tions-quest For new mAteriAls 6 heADs uP! By Diana Del Mauro ADEPS Communications Inside the Lujan Neutron Scattering Center, Victor Fanelli is busy preparing a superconducting magnet. In a series of delicate steps,

  20. Accident Investigation of the August 21, 2012, Contamination Incident at the Los Alamos Neutron Science Center at the Los Alamos National Laboratory

    Broader source: Energy.gov [DOE]

    On August 25, 2012, radioactive contamination was identified on Flight Path 04 of the Lujan Center, an experimental area that is part of the Los Alamos Neutron Science Center at the Los Alamos National Laboratory in New Mexico. Los Alamos National Laboratory is operated by Los Alamos National Security, LLC. The Operating Contractor quickly determined that the contamination had spread offsite, and response teams were immediately brought in.

  1. Neutron and Nuclear Science Publications

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

    Publications Recent publications related to neutron and nuclear science at LANSCE. Neutron and Nuclear Science Publications Chi-Nu Publications DANCE Publications GEANIE Publications ICE House and ICE II Publications (n,z) Publications Neutron Radiography Publications SPIDER Publications Target 2 Publications TPC Publications Links Publications/Media Neutron and Nuclear Science News Profiles Events at LANSCE LANL Research Libary

  2. Center for Nanophase Materials Sciences (CNMS) | U.S. DOE Office of Science

    Office of Science (SC) Website

    (SC) Nanophase Materials Sciences (CNMS) Scientific User Facilities (SUF) Division SUF Home About User Facilities X-Ray Light Sources Neutron Scattering Facilities Nanoscale Science Research Centers (NSRCs) Center for Functional Nanomaterials (CFN) Center for Integrated Nanotechnologies (CINT) Center for Nanophase Materials Sciences (CNMS) Center for Nanoscale Materials (CNM) The Molecular Foundry (TMF) Projects Accelerator & Detector Research Science Highlights Principal Investigators'

  3. Neutron Science and Technology

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

    3 Neutron Science and Technology From a mountaintop in Mexico where we investigate gamma rays, to underground laboratories where we study the behavior of plutonium under extreme conditions, our research spans the spectrum from fundamental to applied. Contact Us Group Leader Frank Merrill Email Deputy Group Leader David Oro Email Deputy Group Leader (acting) Anna Llobet Email Deputy Group Leader (acting) Keith Rielage Email Group Office Email Inner workings of a wristwatch that was imaged by a

  4. LANSCE | Lujan Center | Instruments | Neutron Radiography

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

    Neutron Radiography The recently acquired energy-dispersive neutron imaging detector can be used on various Lujan Center beam-lines to combine scattering with imaging. In most...

  5. COMPUTATIONAL SCIENCE CENTER

    SciTech Connect (OSTI)

    DAVENPORT, J.

    2005-11-01

    The Brookhaven Computational Science Center brings together researchers in biology, chemistry, physics, and medicine with applied mathematicians and computer scientists to exploit the remarkable opportunities for scientific discovery which have been enabled by modern computers. These opportunities are especially great in computational biology and nanoscience, but extend throughout science and technology and include, for example, nuclear and high energy physics, astrophysics, materials and chemical science, sustainable energy, environment, and homeland security. To achieve our goals we have established a close alliance with applied mathematicians and computer scientists at Stony Brook and Columbia Universities.

  6. COMPUTATIONAL SCIENCE CENTER

    SciTech Connect (OSTI)

    DAVENPORT, J.

    2006-11-01

    Computational Science is an integral component of Brookhaven's multi science mission, and is a reflection of the increased role of computation across all of science. Brookhaven currently has major efforts in data storage and analysis for the Relativistic Heavy Ion Collider (RHIC) and the ATLAS detector at CERN, and in quantum chromodynamics. The Laboratory is host for the QCDOC machines (quantum chromodynamics on a chip), 10 teraflop/s computers which boast 12,288 processors each. There are two here, one for the Riken/BNL Research Center and the other supported by DOE for the US Lattice Gauge Community and other scientific users. A 100 teraflop/s supercomputer will be installed at Brookhaven in the coming year, managed jointly by Brookhaven and Stony Brook, and funded by a grant from New York State. This machine will be used for computational science across Brookhaven's entire research program, and also by researchers at Stony Brook and across New York State. With Stony Brook, Brookhaven has formed the New York Center for Computational Science (NYCCS) as a focal point for interdisciplinary computational science, which is closely linked to Brookhaven's Computational Science Center (CSC). The CSC has established a strong program in computational science, with an emphasis on nanoscale electronic structure and molecular dynamics, accelerator design, computational fluid dynamics, medical imaging, parallel computing and numerical algorithms. We have been an active participant in DOES SciDAC program (Scientific Discovery through Advanced Computing). We are also planning a major expansion in computational biology in keeping with Laboratory initiatives. Additional laboratory initiatives with a dependence on a high level of computation include the development of hydrodynamics models for the interpretation of RHIC data, computational models for the atmospheric transport of aerosols, and models for combustion and for energy utilization. The CSC was formed to bring together researchers in these areas and to provide a focal point for the development of computational expertise at the Laboratory. These efforts will connect to and support the Department of Energy's long range plans to provide Leadership class computing to researchers throughout the Nation. Recruitment for six new positions at Stony Brook to strengthen its computational science programs is underway. We expect some of these to be held jointly with BNL.

  7. Center for Advanced Photophysics | Science

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

    Los Alamos National Laboratory National Renewable Energy Laboratory U.S. Department of Energy Home About The Center Science Members Publications News & Press Releases Center...

  8. Energy Frontier Research Center Center for Materials Science...

    Office of Scientific and Technical Information (OSTI)

    Frontier Research Center Center for Materials Science of Nuclear Fuels Citation Details In-Document Search Title: Energy Frontier Research Center Center for Materials Science of ...

  9. 2010 Neutron Review: ORNL Neutron Sciences Progress Report (Technical

    Office of Scientific and Technical Information (OSTI)

    Report) | SciTech Connect Technical Report: 2010 Neutron Review: ORNL Neutron Sciences Progress Report Citation Details In-Document Search Title: 2010 Neutron Review: ORNL Neutron Sciences Progress Report During 2010, the Neutron Sciences Directorate focused on producing world-class science, while supporting the needs of the scientific community. As the instrument, sample environment, and data analysis tools at High Flux Isotope Reactor (HFIR ) and Spallation Neutron Source (SNS) have grown

  10. At Los Alamos's Lujan Neutron Scattering Center, crystallographer Olivier Gourdon

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

    crystallographer keen on showing off the revealing properties of neutrons February 27, 2014 At Los Alamos's Lujan Neutron Scattering Center, crystallographer Olivier Gourdon shows visiting researchers some of the latest tricks that can be performed using this 100-year old multidisciplinary science, which has a spectacular record of demystifying materials as varied as DNA and Martian rocks."Crystallography has the image of an old science. I'm trying to refresh that," said Gourdon, an

  11. Nanoscale Science Research Centers (NSRCs) | U.S. DOE Office of Science

    Office of Science (SC) Website

    (SC) Scientific User Facilities (SUF) Division SUF Home About User Facilities X-Ray Light Sources Neutron Scattering Facilities Nanoscale Science Research Centers (NSRCs) Center for Functional Nanomaterials (CFN) Center for Integrated Nanotechnologies (CINT) Center for Nanophase Materials Sciences (CNMS) Center for Nanoscale Materials (CNM) The Molecular Foundry (TMF) Projects Accelerator & Detector Research Science Highlights Principal Investigators' Meetings BES Home User Facilities

  12. Center for Functional Nanomaterials (CFN) | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Functional Nanomaterials (CFN) Scientific User Facilities (SUF) Division SUF Home About User Facilities X-Ray Light Sources Neutron Scattering Facilities Nanoscale Science Research Centers (NSRCs) Center for Functional Nanomaterials (CFN) Center for Integrated Nanotechnologies (CINT) Center for Nanophase Materials Sciences (CNMS) Center for Nanoscale Materials (CNM) The Molecular Foundry (TMF) Projects Accelerator & Detector Research Science Highlights Principal Investigators' Meetings BES

  13. Center for Integrated Nanotechnologies (CINT) | U.S. DOE Office of Science

    Office of Science (SC) Website

    (SC) Integrated Nanotechnologies (CINT) Scientific User Facilities (SUF) Division SUF Home About User Facilities X-Ray Light Sources Neutron Scattering Facilities Nanoscale Science Research Centers (NSRCs) Center for Functional Nanomaterials (CFN) Center for Integrated Nanotechnologies (CINT) Center for Nanophase Materials Sciences (CNMS) Center for Nanoscale Materials (CNM) The Molecular Foundry (TMF) Projects Accelerator & Detector Research Science Highlights Principal Investigators'

  14. Spallation Neutron Source (SNS) | U.S. DOE Office of Science (SC)

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

    Neutron Scattering Facilities » Spallation Neutron Source (SNS) Scientific User Facilities (SUF) Division SUF Home About User Facilities X-Ray Light Sources Neutron Scattering Facilities Spallation Neutron Source (SNS) High Flux Isotope Reactor (HFIR) Nanoscale Science Research Centers (NSRCs) Projects Accelerator & Detector Research Science Highlights Principal Investigators' Meetings BES Home Neutron Scattering Facilities Spallation Neutron Source (SNS) Print Text Size: A A A

  15. Explosives Center

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

    ... Facility Proton Radiography Facility Lujan Neutron Scattering Center Center for Integrated Nanotechnologies Materials Science Laboratory National High Magnetic Field Laboratory ...

  16. Los Alamos Neutron Science Center

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

    Users User Office User Program LANSCE User Group Rosen Scholar Rosen Prize News & Multimedia News Multimedia Events Profiles Highlights Seminars Activity Reports The Pulse User ...

  17. DOE Science Showcase - Neutron Science Research from DOE Databases | OSTI,

    Office of Scientific and Technical Information (OSTI)

    US Dept of Energy, Office of Scientific and Technical Information DOE Science Showcase - Neutron Science Research from DOE Databases Additional neutron science research in DOE Databases Information Bridge Neutron scattering research was pioneered in 1946 by ORNL's Clifford G. Shull, winner of 1994 Nobel Prize in Physics. Access Shull's early research records in Energy Citations Database. Neutron scattering research was pioneered in 1946 by ORNL's Clifford G. Shull, winner of 1994 Nobel Prize

  18. Energy Frontier Research Center Center for Materials Science...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Energy Frontier Research Center Center for Materials Science of Nuclear Fuels Citation ... dispersion, and, further, that advanced lattice dynamics simulations ...

  19. Nanoscale Science Research Centers (NSRCs) | U.S. DOE Office of Science

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

    (SC) Nanoscale Science Research Centers (NSRCs) User Facilities User Facilities Home User Facilities at a Glance All User Facilities ASCR User Facilities BES User Facilities X-Ray Light Sources Neutron Scattering Facilities Nanoscale Science Research Centers (NSRCs) BER User Facilities FES User Facilities HEP User Facilities NP User Facilities User Resources User Statistics Policies and Processes Frequently Asked Questions User Facility Science Highlights User Facility News Contact

  20. Center for Nanophase Materials Sciences - Newsletter January...

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

    Center for Nanophase Materials Sciences and Panos Datskos of ORNL Measurement Science and Systems Engineering Division The technology, based on nonlinear nanomechanical resonators,...

  1. CENTER

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

    Science and people highlights from the Lujan Neutron Scattering Center at LANSCE CENTER SCIENCE & PEOPLE the Lujan April 2014 LA-UR-14-22812 I N S I D E 2 Seeking design rules for efficient lighting sources 3 Rate-dependent deformation mechanisms in beryllium 4 Improved understanding of a semiconductor used in infrared detectors 6 Mike Fitzsimmons elected NNSA Fellow 7 Pressure tuning: a new approach for making zero thermal expansion materials 8 Neutron scattering enables structural

  2. Neutron Scattering Facilities | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Facilities Scientific User Facilities (SUF) Division SUF Home About User Facilities X-Ray Light Sources Neutron Scattering Facilities Spallation Neutron Source (SNS) High Flux Isotope Reactor (HFIR) Nanoscale Science Research Centers (NSRCs) Projects Accelerator & Detector Research Science Highlights Principal Investigators' Meetings BES Home User Facilities Neutron Scattering Facilities Print Text Size: A A A FeedbackShare Page This activity supports the operation of two neutron scattering

  3. Great Lakes Science Center Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    Science Center Wind Farm Jump to: navigation, search Name Great Lakes Science Center Wind Farm Facility Great Lakes Science Center Sector Wind energy Facility Type Community Wind...

  4. Center for Electrochemical Energy Science | Argonne National...

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

    Energy Science Research Program Publications & Presentations News An Energy Frontier Research Center Exploring the electrochemical reactivity of oxide materials and their...

  5. Center for Space and Earth Science

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

    Deadlines, Events Partnerships NSEC CSES Center for Space and Earth Science Formerly ... Geophysics David Coblentz (505) 667-2781 Email Space Physics Geoffrey Reeves (505) ...

  6. ORISE: Center for Science Education

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

    Science Education as a national resource for featuring proven approaches and programs that can help make science, technology, engineering and mathematics education more effective. ...

  7. Center for Nanophase Materials Sciences

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

    neutron scattering of deuterated block copolymers demonstrates how an applied electric field (left) alters structure and performance Energy filtered TEM of P3HT and P3HT-b-PEO...

  8. PNNL: News Center - Science Highlights

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

    Multimedia Photos PNNL B-Roll PNNL Videos PNNL's YouTube Channel Additional Resources Newsletters Science Highlights Publications DOE Pulse EurekAlert National Lab News Battelle ...

  9. Neutron Scattering Facilities | U.S. DOE Office of Science (SC)

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

    Neutron Scattering Facilities User Facilities User Facilities Home User Facilities at a Glance All User Facilities ASCR User Facilities BES User Facilities X-Ray Light Sources Neutron Scattering Facilities Nanoscale Science Research Centers (NSRCs) BER User Facilities FES User Facilities HEP User Facilities NP User Facilities User Resources User Statistics Policies and Processes Frequently Asked Questions User Facility Science Highlights User Facility News Contact Information Office of Science

  10. Demonstration Cask Provided to Idaho Science Center

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

    Radioactive Waste Management Complex for many years with no identified future use before it was donated to the Idaho Science Center. Editorial Date June 23, 2009 By Bradley Bugger...

  11. LANSCE | Lujan Center | Science Thrust Areas

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

    Science Thrust Areas User research at the Lujan Center is focused in four science thrust areas. Each has a contact person who is available to discuss proposed experiments and to provide advice on the appropriate instrument and instrument scientist, available sample environments, and other details for planned experiments. Lujan Center instrument scientists welcome questions and discussions about new experiments and are happy to provide guidance for proposal development. New users are encouraged

  12. Center for Space and Earth Science

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

    Institute of Geophysics, Planetary Physics, and Signatures Center for Space and Earth Science Promoting and supporting high-quality, cutting-edge science in the areas of astrophysics, space physics, solid planetary geoscience, and climate science. Contact Director Reiner Friedel (505) 665-1936 Email Professional Staff Assistant Georgia Sanchez (505) 665-0855 Email Astophysics and Cosmology Hui Li (505) 665-3131 Email Climate Keeley Costigan (505) 665-4788 Email Geophysics David Coblentz (505)

  13. Crustal Geophysics and Geochemistry Science Center | Open Energy...

    Open Energy Info (EERE)

    Geophysics and Geochemistry Science Center Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Crustal Geophysics and Geochemistry Science Center Author...

  14. USGS-Earth Resources Observation and Science (EROS) Center |...

    Open Energy Info (EERE)

    USGS-Earth Resources Observation and Science (EROS) Center Jump to: navigation, search Tool Summary LAUNCH TOOL Name: USGS-Earth Resources Observation and Science (EROS) Center...

  15. Updated Radiation Exhibit Unveiled at Math and Science Center...

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

    Updated Radiation Exhibit Unveiled at Math and Science Center in Grand Junction, Colorado Updated Radiation Exhibit Unveiled at Math and Science Center in Grand Junction, Colorado ...

  16. Materials Science and Engineering Center

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

    and Engineering Center - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced

  17. LANSCE | Lujan Center | Highlights | Neutron Reflectometry (NR...

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

    composites because the scattering strength is a non-monotonic function of the Z number of a material. Therefore, elements like Cu and Nb provide the necessary neutron...

  18. Molecular Science Research Center 1992 annual report

    SciTech Connect (OSTI)

    Knotek, M.L.

    1994-01-01

    The Molecular Science Research Center is a designated national user facility, available to scientists from universities, industry, and other national laboratories. After an opening section, which includes conferences hosted, appointments, and projects, this document presents progress in the following fields: chemical structure and dynamics; environmental dynamics and simulation; macromolecular structure and dynamics; materials and interfaces; theory, modeling, and simulation; and computing and information sciences. Appendices are included: MSRC staff and associates, 1992 publications and presentations, activities, and acronyms and abbreviations.

  19. Expanding Science and Energy Literacy with America’s Science and Technology Centers

    Broader source: Energy.gov [DOE]

    The Department's new partnership with the Association of Science and Technology Centers is advancing energy literacy through museums and science centers.

  20. The Lederman Science Center: Past, Present, Future

    SciTech Connect (OSTI)

    Bardeen, Marjorie G.; /Fermilab

    2011-11-01

    For 30 years, Fermilab has offered K-12 education programs, building bridges between the Lab and the community. The Lederman Science Center is our home. We host field trips and tours, visit schools, offer classes and professional development workshops, host special events, support internships and have a strong web presence. We develop programs based on identified needs, offer programs with peer-leaders and improve programs from participant feedback. For some we create interest; for others we build understanding and develop relationships, engaging participants in scientific exploration. We explain how we created the Center, its programs, and what the future holds.

  1. Bioenergy Science Center KnowledgeBase

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Syed, M. H.; Karpinets, T. V.; Parang, M.; Leuze, M. R.; Park, B. H.; Hyatt, D.; Brown, S. D.; Moulton, S. Galloway, M.D.; Uberbacher, E. C.

    The challenge of converting cellulosic biomass to sugars is the dominant obstacle to cost effective production of biofuels in s capable of significant enough quantities to displace U. S. consumption of fossil transportation fuels. The BioEnergy Science Center (BESC) tackles this challenge of biomass recalcitrance by closely linking (1) plant research to make cell walls easier to deconstruct, and (2) microbial research to develop multi-talented biocatalysts tailor-made to produce biofuels in a single step. [from the 2011 BESC factsheet] The BioEnergy Science Center (BESC) is a multi-institutional, multidisciplinary research (biological, chemical, physical and computational sciences, mathematics and engineering) organization focused on the fundamental understanding and elimination of biomass recalcitrance. The BESC Knowledgebase and its associated tools is a discovery platform for bioenergy research. It consists of a collection of metadata, data, and computational tools for data analysis, integration, comparison and visualization for plants and microbes in the center.The BESC Knowledgebase (KB) and BESC Laboratory Information Management System (LIMS) enable bioenergy researchers to perform systemic research. [http://bobcat.ornl.gov/besc/index.jsp

  2. The Center for Architecture, Science, and Ecology (CASE) | Open...

    Open Energy Info (EERE)

    Architecture, Science, and Ecology (CASE) Jump to: navigation, search Name: The Center for Architecture, Science, and Ecology Address: 14 Wall Street 24th Floor New York, NY 10005...

  3. Center for Study of Science, Technology and Policy of India ...

    Open Energy Info (EERE)

    Science, Technology and Policy of India Jump to: navigation, search Name: Center for Study of Science, Technology and Policy (CSTEP) Address: Raj Bhavan Circle, High Grounds,...

  4. Nuclear Science Research facility at LANSCE

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

    and industrial research. LANSCE has two spallation neutron sources: the Manuel Lujan Jr. Neutron Scattering Center (Target-1) and the Neutron and Nuclear Science Research facility...

  5. Advancing Materials Science using Neutrons at Oak Ridge National Laboratory

    ScienceCinema (OSTI)

    Carpenter, John

    2014-06-03

    Jack Carpenter, pioneer of accelerator-based pulsed spallation neutron sources, talks about neutron science at Oak Ridge National Laboratory (ORNL) and a need for a second target station at the Spallation Neutron Source (SNS). ORNL is the Department of Energy's largest multiprogram science and energy laboratory, and is home to two scientific user facilities serving the neutron science research community: the High Flux Isotope Reactor (HFIR) and SNS. HFIR and SNS provide researchers with unmatched capabilities for understanding the structure and properties of materials, macromolecular and biological systems, and the fundamental physics of the neutron. Neutrons provide a window through which to view materials at a microscopic level that allow researchers to develop better materials and better products. Neutrons enable us to understand materials we use in everyday life. Carpenter explains the need for another station to produce long wavelength neutrons, or cold neutrons, to answer questions that are addressed only with cold neutrons. The second target station is optimized for that purpose. Modern technology depends more and more upon intimate atomic knowledge of materials, and neutrons are an ideal probe.

  6. Call issued for Lujan Neutron Scattering Center proposals

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

    (polarized and unpolarized) Inelastic neutron scattering spectroscopy Small angle neutron scattering Neutron radiographytomography The Lujan instruments webpage...

  7. ODU establishes a Center for Accelerator Science | Jefferson Lab

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

    ODU establishes a Center for Accelerator Science From an Old Dominion News Release - ODU establishes a Center for Accelerator Science NEWPORT NEWS, Va., Sept. 19, 2008 - Old Dominion University has established a Center for Accelerator Science that will tap into the rapid growth of particle accelerator technologies for atom-smashing experiments, as well as for materials processing, medical imaging and radiation therapies against cancer. The center will receive personnel and funding support from

  8. Science Olympiad | Photosynthetic Antenna Research Center

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

    Science Olympiad Science Olympiad PARC's outreach efforts helped fund students from KIPP Inspire Academy as they competed with other regional schools in the Science Olympiad 2013...

  9. Centers | U.S. DOE Office of Science (SC)

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

    Centers Energy Frontier Research Centers (EFRCs) EFRCs Home Centers EFRC External Websites Research Science Highlights News & Events Publications History Contact BES Home Centers Print Text Size: A A A FeedbackShare Page EFRC Map Centers ordered alphabetically by state and then by center name California Light-Material Interactions in Energy Conversion (LMI) Ralph Nuzzo, California Institute of Technology Center for Nanoscale Controls on Geologic CO2 (NCGC) Donald DePaolo, Lawrence Berkeley

  10. Lab Breakthrough: Neutron Science for the Fusion Mission | Department of

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

    Energy Neutron Science for the Fusion Mission Lab Breakthrough: Neutron Science for the Fusion Mission May 16, 2012 - 9:52am Addthis An accelerator team lead by Robert McGreevy at Oak Ridge National Laboratory is testing material - a critical role in building an experimental fusion reactor for commercial use. As part of the international coalition, they expect to have an operational reactor by 2050. View the entire Lab Breakthrough playlist. Michael Hess Michael Hess Former Digital

  11. ORNL, Six US universities initiate collaborative online neutron science

    Office of Scientific and Technical Information (OSTI)

    course (Journal Article) | SciTech Connect ORNL, Six US universities initiate collaborative online neutron science course Citation Details In-Document Search Title: ORNL, Six US universities initiate collaborative online neutron science course Authors: Bardoel, Agatha A [1] ; Counce, Deborah Melinda [1] + Show Author Affiliations ORNL Publication Date: 2013-01-01 OSTI Identifier: 1057001 DOE Contract Number: DE-AC05-00OR22725 Resource Type: Journal Article Resource Relation: Journal Name:

  12. First Director Named for Center for Accelerator Science | Jefferson Lab

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

    First Director Named for Center for Accelerator Science First Director Named for Center for Accelerator Science From the Old Dominion University Release Newport News, Va., Nov. 10, 2009 - Jean R. Delayen, a principal scientist in the accelerator division at the Department of Energy's Thomas Jefferson National Accelerator Facility and professor of accelerator physics at Old Dominion University, has been named the first director of the Center for Accelerator Science, which was created in 2008 by

  13. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    AL 35487 (USA) 2-Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831 (USA) 3-Department of Chemistry, University of Kentucky,...

  14. MIT's Plasma Science Fusion Center: Tokamak Experiments Come...

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

    Tokamak Experiments Come Clean about Impurity Transport American Fusion News Category: Massachusetts Institute of Technology (MIT) Link: MIT's Plasma Science Fusion Center: Tokamak...

  15. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    Micronanofabricated environments for synthetic biology C. Patrick Collier and Michael L. Simpson Nanofabrication Research Laboratory, Center for Nanophase Materials Sciences Oak...

  16. Center for Nanophase Materials Sciences - Summer Newsletter 2010

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

    1 Department of Chemistry, Vanderbilt University, Station B 351824, Nashville, TN 37235, USA 2 Center for Nanophase Materials Sciences at Oak Ridge National Laboratory, 1 Bethel...

  17. ACCESS: Argonne Collaborative Center for Energy Storage Science...

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

    ACCESS: Argonne Collaborative Center for Energy Storage Science Share Topic Energy Energy usage Energy storage Browse By - Any - Energy -Energy efficiency --Vehicles ---Alternative ...

  18. Center for Nanophase Materials Sciences (CNMS) - News

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

    Physics, National Academy of Science of Ukraine, Kiev, Ukraine 8 Faculty of Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, 7500 AE,...

  19. Center for Nanophase Materials Sciences - Newsletter

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

    solid. Inelastic neutron scattering measurements of Fe1-xCoxSi alloys were combined with quantum mechanics based calculations to show why the alloys exhibit unusual softening as...

  20. Center for Nanophase Materials Sciences (CNMS) - Instructions...

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

    forms. Use the links below to download each of the necessary forms. CNMS Proposal Form (LaTex version) - You must use the latest version from one of these links Neutron Scattering...

  1. Center for Bio-Inspired Energy Science (CBES) | U.S. DOE Office of Science

    Office of Science (SC) Website

    (SC) Bio-Inspired Energy Science (CBES) Energy Frontier Research Centers (EFRCs) EFRCs Home Centers EFRC External Websites Research Science Highlights News & Events Publications History Contact BES Home Centers Center for Bio-Inspired Energy Science (CBES) Print Text Size: A A A FeedbackShare Page CBES Header Director Samuel Stupp Lead Institution Northwestern University Year Established 2009 Mission To discover and develop bio-inspired systems that reveal new connections between energy

  2. Sandia National Labs: Physical, Chemical and Nano Sciences Center (PCNSC)

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

    Home Page Home About Us Departments News Partnering Research J. Charles Barbour J. Charles Barbour Director Beverly Eppinga Beverly A. Eppinga Sr. Mgt. Asst. DOI Research Briefs CINT Physical, Chemical, and Nano Sciences Center The Physical, Chemical, and Nano Sciences Center supports Sandia's mission by providing new scientific knowledge.We have two key activities: Support the National Nuclear Security Administration's (NNSA) mission with our unique expertise in science-based solutions

  3. AUDIT REPORT Office of Science's Bioenergy Research Centers

    Energy Savers [EERE]

    Bioenergy Research Centers OAI-M-16-01 October 2015 U.S. Department of Energy Office of Inspector General Office of Audits and Inspections Department of Energy Washington, DC 20585 October 22, 2015 MEMORANDUM FOR THE ACTING DIRECTOR, OFFICE OF SCIENCE FROM: April G. Stephenson Assistant Inspector General for Inspections Office of Inspector General SUBJECT: INFORMATION: Audit Report: "Office of Science's Bioenergy Research Centers" BACKGROUND In September 2007, Office of Science's

  4. LANSCE | Lujan Center | Highlights

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

    * Julian Chen, new Protein Crystallography Station lead scientist, carving out elite niche: neutron studies of membrane proteins The Lujan Center Science & People October...

  5. Center for Nanophase Materials Sciences - Newsletter January...

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

    (NIST), Gaithersburg, MD where I lead a project on Nanoparticle Assembly in Complex Fluids. Before joining NIST, I completed my Ph.D. in 2001 in Polymer Science and...

  6. Center for Nanophase Materials Sciences - Newsletter January...

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

    CNMS Updates The CNMS has a new director Sean Smith from the University of Queensland in Australia has accepted the position of director for the Center for Nanophase Materials...

  7. Sensitivity Upgrades to the Idaho Accelerator Center Neutron Time of Flight Spectrometer

    SciTech Connect (OSTI)

    Thompson, S. J.; Kinlaw, M. T.; Harmon, J. F.; Wells, D. P.; Hunt, A. W.

    2007-10-26

    Past experiments have shown that discrimination between between fissionable and non-fissionable materials is possible using an interrogation technique that monitors for high energy prompt fission neutrons. Several recent upgrades have been made to the neutron time of flight spectrometer at the Idaho Accelerator Center with the intent of increasing neutron detection sensitivity, allowing for system use in nonproliferation and security applications.

  8. Sandia National Laboratories: Microsystems Science & Technology Center

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

    Facebook Twitter YouTube Flickr RSS Microsystems Science & Technology Center Microsystems Science & Technology Center MSTC Extensive scientific and engineering expertise in areas such as material growth and process development for silicon and compounds, device and product design, advanced packaging technologies for 3-D integration, and reliability and failure analysis expertise MSTC Banner Home of the MESA Complex MESA building The MESA Complex integrates the numerous scientific

  9. ACCESS: The Argonne Collaborative Center for Energy Storage Science |

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

    Argonne National Laboratory ACCESS: The Argonne Collaborative Center for Energy Storage Science The Argonne Collaborative Center for Energy Storage Science (ACCESS) is a high-impact collaboration of scientists and engineers from across the U.S. Department of Energy's Argonne National Laboratory. Together, these researchers are charged with solving pressing energy storage problems through multidisciplinary research. Argonne's energy storage portfolio captures every point on the spectrum from

  10. LANSCE | Lujan Center | Highlights | In situ neutron diffraction...

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

    In situ neutron diffraction study of CO clathrate hydrate The structure of a CO clathrate hydrate has been studied for the first time using high-P low-T neutron diffraction....

  11. The early development of neutron diffraction: Science in the wings of the

    Office of Scientific and Technical Information (OSTI)

    Manhattan Project (Conference) | SciTech Connect Conference: The early development of neutron diffraction: Science in the wings of the Manhattan Project Citation Details In-Document Search Title: The early development of neutron diffraction: Science in the wings of the Manhattan Project Although neutron diffraction was first observed using radioactive decay sources shortly after the discovery of the neutron, it was only with the availability of higher intensity neutron beams from the first

  12. Energy Frontier Research Center, Center for Materials Science of Nuclear Fuels

    SciTech Connect (OSTI)

    Todd R. Allen

    2011-12-01

    This is a document required by Basic Energy Sciences as part of a mid-term review, in the third year of the five-year award period and is intended to provide a critical assessment of the Center for Materials Science of Nuclear Fuels (strategic vision, scientific plans and progress, and technical accomplishments).

  13. Molecular Science Research Center annual report

    SciTech Connect (OSTI)

    Knotek, M.L.

    1991-01-01

    The Chemical Structure and Dynamics group is studying chemical kinetics and reactions dynamics of terrestrial and atmospheric processes as well as the chemistry of complex waste forms and waste storage media. Staff are using new laser systems and surface-mapping techniques in combination with molecular clusters that mimic adsorbate/surface interactions. The Macromolecular Structure and Dynamics group is determining biomolecular structure/function relationships for processes the control the biological transformation of contaminants and the health effects of toxic substances. The Materials and Interfaces program is generating information needed to design and synthesize advanced materials for the analysis and separation of mixed chemical waste, the long-term storage of concentrated hazardous materials, and the development of chemical sensors for environmental monitoring of various organic and inorganic species. The Theory, Modeling, and Simulation group is developing detailed molecular-level descriptions of the chemical, physical, and biological processes in natural and contaminated systems. Researchers are using the full spectrum of computational techniques. The Computer and Information Sciences group is developing new approaches to handle vast amounts of data and to perform calculations for complex natural systems. The EMSL will contain a high-performance computing facility, ancillary computing laboratories, and high-speed data acquisition systems for all major research instruments.

  14. Neutron Star Science with the NuSTAR

    SciTech Connect (OSTI)

    Vogel, J. K.

    2015-10-16

    The Nuclear Spectroscopic Telescope Array (NuSTAR, Figure 1), launched in June 2012, helped scientists obtain for the first time a sensitive high-energy X-ray map of the sky with extraordinary resolution. This pioneering telescope has aided in the understanding of how stars explode and neutron stars are born. LLNL is a founding member of the NuSTAR project, with key personnel on its optics and science team. We used NuSTAR to observe and analyze the observations of different neutron star classes identified in the last decade that are still poorly understood. These studies not only help to comprehend newly discovered astrophysical phenomena and emission processes for members of the neutron star family, but also expand the utility of such observations for addressing broader questions in astrophysics and other physics disciplines. For example, neutron stars provide an excellent laboratory to study exotic and extreme phenomena, such as the equation of state of the densest matter known, the behavior of matter in extreme magnetic fields, and the effects of general relativity. At the same time, knowing their accurate populations has profound implications for understanding the life cycle of massive stars, star collapse, and overall galactic evolution.

  15. Energy Frontier Research Centers

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

    Fuels (Technical Report) | SciTech Connect Technical Report: Energy Frontier Research Center Center for Materials Science of Nuclear Fuels Citation Details In-Document Search Title: Energy Frontier Research Center Center for Materials Science of Nuclear Fuels Scientific Successes * The first phonon density of states (PDOS) measurements for UO2 to include anharmonicity were obtained using time-of-flight inelastic neutron scattering at the Spallation Neutron Source (SNS), and an innovative,

  16. Sandia National Labs: Physical, Chemical and Nano Sciences Center...

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

    Sciences Semiconductor & Optical Sciences Energy Sciences Small Science Cluster Business Office News Partnering Research Departments Radiation, Nano Materials, & Interface Sciences...

  17. ORNL Neutron Sciences Annual Report for 2007 (Technical Report...

    Office of Scientific and Technical Information (OSTI)

    It also contains information about education and outreach activities and about the ... COLD NEUTRONS; COMMISSIONING; EDUCATION; HFIR REACTOR; NEUTRON SOURCES; ...

  18. Center for Electrochemical Energy Science (CEES) | U.S. DOE Office of

    Office of Science (SC) Website

    Science (SC) Center for Electrochemical Energy Science (CEES) Energy Frontier Research Centers (EFRCs) EFRCs Home Centers EFRC External Websites Research Science Highlights News & Events Publications History Contact BES Home Centers Center for Electrochemical Energy Science (CEES) Print Text Size: A A A FeedbackShare Page CEES Header Director Paul Fenter Lead Institution Argonne National Laboratory Year Established 2009 Mission To create a robust fundamental understanding of the

  19. Los Alamos Neutron Science Center | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    This Site Budget IG Web Policy Privacy No Fear Act Accessibility FOIA Sitemap Federal Government The White House DOE.gov USA.gov Jobs Apply for Our Jobs Our Jobs Working at NNSA...

  20. 2004 research briefs :Materials and Process Sciences Center.

    SciTech Connect (OSTI)

    Cieslak, Michael J.

    2004-01-01

    This report is the latest in a continuing series that highlights the recent technical accomplishments associated with the work being performed within the Materials and Process Sciences Center. Our research and development activities primarily address the materials-engineering needs of Sandia's Nuclear-Weapons (NW) program. In addition, we have significant efforts that support programs managed by the other laboratory business units. Our wide range of activities occurs within six thematic areas: Materials Aging and Reliability, Scientifically Engineered Materials, Materials Processing, Materials Characterization, Materials for Microsystems, and Materials Modeling and Simulation. We believe these highlights collectively demonstrate the importance that a strong materials-science base has on the ultimate success of the NW program and the overall DOE technology portfolio.

  1. Neutron Scattering Facilities | U.S. DOE Office of Science (SC...

    Office of Science (SC) Website

    All User Facilities ASCR User Facilities BES User Facilities X-Ray Light Sources Neutron ... Contact Information Office of Science U.S. Department of Energy 1000 Independence Ave., SW ...

  2. Neutron crystallography aids drug design

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

    Neutron crystallography aids drug design Neutron crystallography aids drug design Researchers have used neutron crystallography for the first time to determine the structure of a clinical drug in complex with its human target enzyme. October 9, 2012 Rich Marquez The Protein Crystallography Station at the Los Alamos Neutron Science Center, where groundbreaking work in new drug-design methods is underway using neutron diffraction techniques. Contact Nancy Ambrosiano Communications Office (505)

  3. Science Facilities

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

    Facilities /science-innovation/_assets/images/icon-science.jpg Science Facilities The focal point for basic and applied R&D programs with a primary focus on energy but also encompassing medical, biotechnology, high-energy physics, and advanced scientific computing programs. Center for Integrated Nanotechnologies» Dual Axis Radiographic Hydrodynamic Test Facility (DARHT)» Electron Microscopy Lab» Ion Beam Materials Lab» Isotope Production Facility» Los Alamos Neutron Science Center»

  4. Protons and Neutrons for Testing at LBNL | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Protons and Neutrons for Testing at LBNL Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Applications of Nuclear Science Applications of Nuclear Science Archives Small Business Innovation Research / Small Business Technology Transfer Funding Opportunities Nuclear Science Advisory Committee (NSAC) Community Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P:

  5. 11th LANSCE School on Neutron Scattering | About the School

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

    students calculate results About the LANSCE School on Neutron Scattering The annual Los Alamos Neutron Science Center (LANSCE) School on Neutron Scattering is 9- to 10-day school focusing on specific science topics to which neutron scattering makes a critical impact. The focus-driven agenda makes it distinct from other neutron schools in the nation. The LANSCE Neutron Scattering School began in 2004 and it has had a continuous and successful run to this day. General School Format The first day

  6. Center for Nanophase Materials Sciences (CNMS) - CNMS User Research

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

    Using Neutron Reflectometry to Investigate Interactions across Polymer Thin Films David Uhrig, Jamie Messman, Jimmy Mays, and Phil Britt, CNMS J. F. Ankner, X. Tao, C. Halbert,...

  7. Final Report Gentile, Thomas R. 36 MATERIALS SCIENCE neutron...

    Office of Scientific and Technical Information (OSTI)

    spin filter; polarization; helium-3 We propose to extend the technique of polarized neutron scattering into new domains by continued development and application of polarized...

  8. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831 2-Materials Science & Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831 3-Physics Department,...

  9. Sandia National Labs: Physical, Chemical and Nano Sciences Center...

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

    Vision & MissionValues Strengths & Capabilities Center Thrusts Resources Organization Chart Departments News Partnering Research Center 1100 Vision & MissionValues Strengths &...

  10. Center for Nanophase Materials Sciences (CNMS) - CNMS User Research

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

    solid. Inelastic neutron scattering measurements of Fe1-xCoxSi alloys were combined with quantum mechanics based calculations to show why the alloys exhibit unusual softening as...

  11. Center for Nanophase Materials Sciences - Summer Newsletter 2010

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

    with several other user facilities at ORNL to define a program that will be of broad interest to users of these facilities, including the Spallation Neutron Source, High Flux...

  12. The early development of neutron diffraction: Science in the...

    Office of Scientific and Technical Information (OSTI)

    Ernest O. Wollan, Lyle B. Borst, and Walter H. Zinn were all able to observe neutron diffraction in 1944 using the X-10 graphite reactor and the CP-3 heavy water reactor. Authors: ...

  13. Catalysis Center for Energy Innovation (CCEI) | U.S. DOE Office of Science

    Office of Science (SC) Website

    (SC) Catalysis Center for Energy Innovation (CCEI) Energy Frontier Research Centers (EFRCs) EFRCs Home Centers EFRC External Websites Research Science Highlights News & Events Publications History Contact BES Home Centers Catalysis Center for Energy Innovation (CCEI) Print Text Size: A A A FeedbackShare Page CCEI Header Director Dionisios Vlachos Lead Institution University of Delaware Year Established 2009 Mission To focus on developing innovative, transformational heterogeneous

  14. DOE Science Showcase - Neutron Sources for Studying Matter | OSTI, US Dept

    Office of Scientific and Technical Information (OSTI)

    of Energy, Office of Scientific and Technical Information Neutron Sources for Studying Matter Understanding the properties of matter on the atomic scale and then using this knowledge to optimize those properties or develop new materials and functionality is a key priority of the Department of Energy (DOE) Office of Basic Energy Sciences. This activity supports the operation of three neutron scattering facilities, one of the most powerful tools for characterizing matter. These facilities are

  15. WNR Group Leader Steve Wender LANSCE Neutron Testing Facility

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

    WNR Group Leader Steve Wender LANSCE Neutron Testing Facility 505.667.1344 wender@lanl.gov Proposal Process Contacts WNR User Office Administrator Tanya Herrera 505.667.6797 tanyah@lanl.gov LANSCE User Office Los Alamos Neutron Science Center 505.665.1010 lansce-user-office@lanl.gov For information on user facility agreements and payment terms for industrial users, contact: Technology Transfer Division 505.665.9090 Accelerated Neutron Testing of Semiconductors Los Alamos Neutron Science Center

  16. LANSCE | Lujan Center | Publications

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

    Department of Energy, National Nuclear Security Administration nnsa.energy.gov Publications 2009 Publications Please use the following acknowledgement when publishing results based on data measured at the Lujan Center: "This work has benefited from the use of [add here name of specific Lujan instruments] at the Lujan Center at Los Alamos Neutron Science Center, funded by DOE Office of Basic Energy Sciences. Los Alamos National Laboratory is operated by Los Alamos National Security LLC

  17. Neutron Scattering | U.S. DOE Office of Science (SC)

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

    (Conference) | SciTech Connect Conference: Neutron Scattering of CeNi at the SNS-ORNL: A Preliminary Report Citation Details In-Document Search Title: Neutron Scattering of CeNi at the SNS-ORNL: A Preliminary Report Authors: Mirmelstein, A V ; Podlesnyak, A ; Kolesnikov, A I ; Saporov, B ; Sefat, A S ; Tobin, J G Publication Date: 2014-04-13 OSTI Identifier: 1132013 Report Number(s): LLNL-PROC-653272 DOE Contract Number: DE-AC52-07NA27344 Resource Type: Conference Resource Relation:

  18. The Science Program at the Los Alamos Ultracold Neutron Source (Technical

    Office of Scientific and Technical Information (OSTI)

    Report) | SciTech Connect Technical Report: The Science Program at the Los Alamos Ultracold Neutron Source Citation Details In-Document Search Title: The Science Program at the Los Alamos Ultracold Neutron Source Authors: Saunders, Alexander [1] + Show Author Affiliations Los Alamos National Laboratory Publication Date: 2013-06-13 OSTI Identifier: 1083838 Report Number(s): LA-UR-13-24322 DOE Contract Number: AC52-06NA25396 Resource Type: Technical Report Research Org: Los Alamos National

  19. The Science | Center for Bio-Inspired Solar Fuel Production

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

    Science The Science The need for a continuous energy supply and energy requirements for transportation necessitates technology for storage of energy from sunlight in fuel, as well as conversion to electricity. Cost-effective technologies for solar fuel production do not exist, prompting the need for new fundamental science. Fuel production requires not only energy, but also a source of electrons and precursor materials suitable for reduction to useful fuels. Given the immense magnitude of the

  20. Center for Nanophase Materials Sciences (CNMS) - 2014 CNMS User...

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

    Materials Sciences Oak Ridge National Laboratory September 15-19, 2014 Chestnut Ridge Campus of Oak Ridge National Laboratory Oak Ridge, Tennessee User Meeting Announcement User...

  1. Center for Nanophase Materials Sciences (CNMS) - 2011 CNMS User...

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

    Materials Sciences Oak Ridge National Laboratory September 19-20, 2011 Chestnut Ridge Campus of Oak Ridge National Laboratory Oak Ridge, Tennessee User Meeting Announcement User...

  2. Center for Nanophase Materials Sciences (CNMS) - CNMS User Research

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

    di Fisica "A. Volta", Universita degli Studi di Pavia, via Bassi 6, 27100 Pavia, Italy Department of Physics and Institute for Optical Sciences, University of Toronto, 60 St. ...

  3. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    di Fisica "A. Volta", Universita degli Studi di Pavia, via Bassi 6, 27100 Pavia, Italy Department of Physics and Institute for Optical Sciences, University of Toronto, 60 St. ...

  4. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    Oak Ridge, TN 37831 2-University of Heidelberg, Heidelberg, Germany 3-National Academy of Science of Ukraine, Kiev, Ukraine Achievement Here we report direct measurements of oxygen...

  5. Center for Nanophase Materials Sciences (CNMS) - CNMS User Research

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

    of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 4-Department of Physics and Department of Electrical Engineering and Computer...

  6. Measurements of neutron dose equivalent for a proton therapy center using uniform scanning proton beams

    SciTech Connect (OSTI)

    Zheng Yuanshui; Liu Yaxi; Zeidan, Omar; Schreuder, Andries Niek; Keole, Sameer

    2012-06-15

    Purpose: Neutron exposure is of concern in proton therapy, and varies with beam delivery technique, nozzle design, and treatment conditions. Uniform scanning is an emerging treatment technique in proton therapy, but neutron exposure for this technique has not been fully studied. The purpose of this study is to investigate the neutron dose equivalent per therapeutic dose, H/D, under various treatment conditions for uniform scanning beams employed at our proton therapy center. Methods: Using a wide energy neutron dose equivalent detector (SWENDI-II, ThermoScientific, MA), the authors measured H/D at 50 cm lateral to the isocenter as a function of proton range, modulation width, beam scanning area, collimated field size, and snout position. They also studied the influence of other factors on neutron dose equivalent, such as aperture material, the presence of a compensator, and measurement locations. They measured H/D for various treatment sites using patient-specific treatment parameters. Finally, they compared H/D values for various beam delivery techniques at various facilities under similar conditions. Results: H/D increased rapidly with proton range and modulation width, varying from about 0.2 mSv/Gy for a 5 cm range and 2 cm modulation width beam to 2.7 mSv/Gy for a 30 cm range and 30 cm modulation width beam when 18 Multiplication-Sign 18 cm{sup 2} uniform scanning beams were used. H/D increased linearly with the beam scanning area, and decreased slowly with aperture size and snout retraction. The presence of a compensator reduced the H/D slightly compared with that without a compensator present. Aperture material and compensator material also have an influence on neutron dose equivalent, but the influence is relatively small. H/D varied from about 0.5 mSv/Gy for a brain tumor treatment to about 3.5 mSv/Gy for a pelvic case. Conclusions: This study presents H/D as a function of various treatment parameters for uniform scanning proton beams. For similar treatment conditions, the H/D value per uncollimated beam size for uniform scanning beams was slightly lower than that from a passive scattering beam and higher than that from a pencil beam scanning beam, within a factor of 2. Minimizing beam scanning area could effectively reduce neutron dose equivalent for uniform scanning beams, down to the level close to pencil beam scanning.

  7. Center for Solar Fuels (UNC) | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Solar Fuels (UNC) Energy Frontier Research Centers (EFRCs) EFRCs Home Centers EFRC External Websites Research Science Highlights News & Events Publications History Contact BES Home Centers Center for Solar Fuels (UNC) Print Text Size: A A A FeedbackShare Page UNC Header Director Thomas Meyer Lead Institution University of North Carolina Year Established 2009 Mission To conduct research on dye sensitized photoelectrosynthesis cells (DSPECs) for water splitting and tandem cells for the

  8. The Manuel Lujan Jr. Neutron Scattering Center (LANSCE) experiment reports 1993 run cycle. Progress report

    SciTech Connect (OSTI)

    Farrer, R.; Longshore, A.

    1995-06-01

    This year the Manuel Lujan Jr. Neutron Scattering Center (LANSCE) ran an informal user program because the US Department of Energy planned to close LANSCE in FY1994. As a result, an advisory committee recommended that LANSCE scientists and their collaborators complete work in progress. At LANSCE, neutrons are produced by spallation when a pulsed, 800-MeV proton beam impinges on a tungsten target. The proton pulses are provided by the Clinton P. Anderson Meson Physics Facility (LAMPF) accelerator and a associated Proton Storage Ring (PSR), which can Iter the intensity, time structure, and repetition rate of the pulses. The LAMPF protons of Line D are shared between the LANSCE target and the Weapons Neutron Research (WNR) facility, which results in LANSCE spectrometers being available to external users for unclassified research about 80% of each annual LAMPF run cycle. Measurements of interest to the Los Alamos National Laboratory (LANL) may also be performed and may occupy up to an additional 20% of the available beam time. These experiments are reviewed by an internal program advisory committee. This year, a total of 127 proposals were submitted. The proposed experiments involved 229 scientists, 57 of whom visited LANSCE to participate in measurements. In addition, 3 (nuclear physics) participating research teams, comprising 44 scientists, carried out experiments at LANSCE. Instrument beam time was again oversubscribed, with 552 total days requested an 473 available for allocation.

  9. Center for Nanophase Materials Sciences (CNMS) - CNMS User Research

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

    S. Allen, James M. McCollum, John R. Wilgus, Gary S. Sayler, and Chris D. Cox. Co-author Roy D. Dar was a DOE Science Undergraduate Laboratory Intern student working with...

  10. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    a whole new family of previously unknown electronic properties. Credit Published in Nano Letters, DOI: 10.1021nl203349b. Research at Oak Ridge National Laboratory's Center for...

  11. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    Expression Optimization and Synthetic Gene Networks in Cell-free Systems David K. Karig,1 Sukanya Iyer,2,3 Michael L. Simpson,1,4,5 Mitchel J. Doktycz,1,2 1-Center for Nanophase...

  12. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    Standing Friedel Waves, Standing Spin Waves, and Indirect Bandgap Optical Transition in Nanostructures Jun-Qiang Lu1, X.-G. Zhang1,2, and Sokrates T. Pantelides3 1Center for...

  13. Center for Nanophase Materials Sciences (CNMS) - CNMS User Research

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

    Rouleau,3 Karren L. More,5 G. Tayhas R. Palmore,2 and Robert H. Hurt2 1-Dept Chemistry, Brown University 2-School of Engineering, Brown University 3-Center for Nanophase Materials...

  14. Center for Nanophase Materials Sciences (CNMS) - Archived CNMS...

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

    ARCHIVED CNMS IN THE NEWS Sergei V. Kalinin Wins ACerS Robert L. Coble Award for Young Scholars Sergei V. Kalinin, who is a member of the Imaging Functionality Group in the Center...

  15. MIT's Plasma Science Fusion Center: I-Mode Powers Up on Alcator...

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

    I-Mode Powers Up on Alcator C-Mod Tokamak American Fusion News Category: Massachusetts Institute of Technology (MIT) Link: MIT's Plasma Science Fusion Center: I-Mode Powers Up on...

  16. Updated Radiation Exhibit Unveiled at Math and Science Center in Grand

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

    Junction, Colorado | Department of Energy Updated Radiation Exhibit Unveiled at Math and Science Center in Grand Junction, Colorado Updated Radiation Exhibit Unveiled at Math and Science Center in Grand Junction, Colorado April 26, 2016 - 4:50pm Addthis What does this project do? Goal 6. Engage the Public, Governments, and Interested Parties A newly updated radiation exhibit, created by the U.S. Department of Energy (DOE) Office of Legacy Management (LM) office in Grand Junction, Colorado,

  17. Center for Geologic Storage of CO2 (GSCO2) | U.S. DOE Office of Science

    Office of Science (SC) Website

    (SC) Center for Geologic Storage of CO2 (GSCO2) Energy Frontier Research Centers (EFRCs) EFRCs Home Centers EFRC External Websites Research Science Highlights News & Events Publications History Contact BES Home Centers Center for Geologic Storage of CO2 (GSCO2) Print Text Size: A A A FeedbackShare Page GSCO<sub>2</sub> Director Scott M. Frailey Lead Institution University of Illinois at Urbana-Champaign Year Established 2014 Mission To generate new conceptual, mathematical,

  18. Report of tritide study at the Responsive Neutron Generator Product Deployment Center.

    SciTech Connect (OSTI)

    Burkhart, Robert; Coffey, Jaime

    2008-11-01

    This report documents a study of sample counting results for wipes from routine surface area monitoring conducted at the Responsive Neutron Generator Product Deployment Center (RNGPDC) at Sandia National Laboratories (SNL). The study was initiated in November 2006, with two samples suspected of containing erbium tritide, after some samples were found to exhibit higher tritium counting rates upon recount at a later time. The main goal of the study was to determine whether the current practice of analyzing tritium wipe samples once, within a few days of sample collection, is adequate to accurately quantify the amount of tritium on the sample when tritides may be present. Recommendations are made toward routine recounting of vials suspected of containing particulate forms of tritium.

  19. Science Highlights- Center for Solar and Thermal Energy Conversion

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

    Highlight Slides Abstracts (Click on Title) and Science Highlight Slides (Click on Image) Highlights From 2014 Comparison of Ultrafast Pulse Measurement Methods Low-temperature Physical Properties of Cu2Se Modeling the Role of Donor/Acceptor Interface in Charge Transfer in SubPc/C60-based Solar Cells Universal Design Principles for Cascade Heterojunction Solar Cells with High Fill Factors and Internal Quantum Efficiencies Approaching 100% Exciton Management in Organic Photovoltaic Multi-donor

  20. The Molecular Foundry (TMF) | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    The Molecular Foundry (TMF) Scientific User Facilities (SUF) Division SUF Home About User Facilities X-Ray Light Sources Neutron Scattering Facilities Nanoscale Science Research Centers (NSRCs) Center for Functional Nanomaterials (CFN) Center for Integrated Nanotechnologies (CINT) Center for Nanophase Materials Sciences (CNMS) Center for Nanoscale Materials (CNM) The Molecular Foundry (TMF) Projects Accelerator & Detector Research Science Highlights Principal Investigators' Meetings BES Home

  1. Letter to Science from Michael Wang, Center for Transportation Research, Argonne National Laboratory

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Letter to Science (Original version submitted to Science on Feb. 14 th , 2008; revised on March 14 th , 2008) Michael Wang Center for Transportation Research Argonne National Laboratory Zia Haq Office of Biomass Program Office of Energy Efficiency and Renewable Energy U.S. Department of Energy The article by Searchinger et al. in Sciencexpress ("Use of U.S. Croplands for Biofuels Increases Greenhouse Gases through Emissions from Land Use Change," February 7, 2008) provides a timely

  2. DOE Office of Basic Sciences: An Overview of Basic Research Activities...

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

    Chemical Transformations Nanoscience and Electron Microscopy Centers X-Ray and Neutron Scattering Facilities Scientific User Facilities Division Materials Sciences and...

  3. Neutron and Nuclear Science To/MS: Distribution From/MS: Stephen Wender/H855

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

    memorandum Neutron and Nuclear Science To/MS: Distribution From/MS: Stephen Wender/H855 Phone/Fax: 7-1344/5-3705 E-mail: wender@lanl.gov Symbol: LANSCE-NS-14-02 Date: February 4, 2014 Subject: AUTHORIZATIONS AND ASSIGNMENTS I. LANSCE-NS Additional Duty Assignments ALARA Coordinator Ron Nelson Crane Coordinator Gregg Chaparro Facility Coordinator Steve Wender Electrical Safety Officer William Waganaar ES&H Officer Steve Wender Forklift Coordinator Tim Medina Lockout/Tagout Coordinator Ron

  4. The Manuel Lujan, Jr. Neutron Scattering Center LANSCE experiment reports 1989 run cycle

    SciTech Connect (OSTI)

    Hyer, D.K.; DiStravolo, M.A.

    1990-10-01

    This report contains a listing and description of experiments carried on at the LANSCE neutron scattering facility in the following areas: High Density Powder Diffraction; Neutron Powder Diffractometer, (NPD); Single Crystal Diffractometer, (SCD); Low-Q Diffractometer, (LQD); Surface Profile Analysis Reflectometer, (SPEAR); Filter Difference Spectrometer, (FDS); and Constant-Q Spectrometer.

  5. LANSCE | Lujan Center | Publications

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

    0 Publications Please use the following acknowledgement when publishing results based on data measured at the Lujan Center: "This work has benefited from the use of [add here name of specific Lujan instruments] at the Lujan Center at Los Alamos Neutron Science Center, funded by DOE Office of Basic Energy Sciences. Los Alamos National Laboratory is operated by Los Alamos National Security LLC under DOE Contract DE-AC52-06NA25396." Year Citation citation # (as of 06/2013) Instrument 115

  6. LANSCE | Lujan Center | Publications

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

    1 Publications Please use the following acknowledgement when publishing results based on data measured at the Lujan Center: "This work has benefited from the use of [add here name of specific Lujan instruments] at the Lujan Center at Los Alamos Neutron Science Center, funded by DOE Office of Basic Energy Sciences. Los Alamos National Laboratory is operated by Los Alamos National Security LLC under DOE Contract DE-AC52-06NA25396." Year Citation citation # (as of 06/2013) Instrument 244

  7. LANSCE | Lujan Center | Publications

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

    2 Publications Please use the following acknowledgement when publishing results based on data measured at the Lujan Center: "This work has benefited from the use of [add here name of specific Lujan instruments] at the Lujan Center at Los Alamos Neutron Science Center, funded by DOE Office of Basic Energy Sciences. Los Alamos National Laboratory is operated by Los Alamos National Security LLC under DOE Contract DE-AC52-06NA25396." Year Citation citation # (as of 06/2013) Instrument 373

  8. Microarray Transcriptomics Data from the BioEnergy Science Center (BESC)

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    The BioEnergy Science Center (BESC) is a multi-institutional (18 partner), multidisciplinary research (biological, chemical, physical and computational sciences, mathematics and engineering) organization focused on the fundamental understanding and elimination of biomass recalcitrance. BESC's approach to improve accessibility to the sugars within biomass involves 1) designing plant cell walls for rapid deconstruction and 2) developing multitalented microbes for converting plant biomass into biofuels in a single step (consolidated bioprocessing). Addressing the roadblock of biomass recalcitrance will require a multiscale understanding of plant cell walls from biosynthesis to deconstruction pathways. This integrated understanding would generate models, theories and finally processes that will be used to understand and overcome biomass recalcitrance.

  9. U.S. Department of Energy's Bioenergy Research Centers An Overview of the Science

    SciTech Connect (OSTI)

    2010-07-01

    Alternative fuels from renewable cellulosic biomass - plant stalks, trunks, stems, and leaves - are expected to significantly reduce U.S. dependence on imported oil while enhancing national energy security and decreasing the environmental impacts of energy use. Ethanol and other advanced biofuels from cellulosic biomass are renewable alternatives that could increase domestic production of transportation fuels, revitalize rural economies, and reduce carbon dioxide and pollutant emissions. According to U.S. Secretary of Energy Steven Chu, 'Developing the next generation of biofuels is key to our effort to end our dependence on foreign oil and address the climate crisis while creating millions of new jobs that can't be outsourced.' Although cellulosic ethanol production has been demonstrated on a pilot level, developing a cost-effective, commercial-scale cellulosic biofuel industry will require transformational science to significantly streamline current production processes. Woodchips, grasses, cornstalks, and other cellulosic biomass are widely abundant but more difficult to break down into sugars than corn grain - the primary source of U.S. ethanol fuel production today. Biological research is key to accelerating the deconstruction of cellulosic biomass into sugars that can be converted to biofuels. The Department of Energy (DOE) Office of Science continues to play a major role in inspiring, supporting, and guiding the biotechnology revolution over the past 30 years. The DOE Genomic Science program is advancing a new generation of research focused on achieving whole-systems understanding of biology. This program is bringing together scientists in diverse fields to understand the complex biology underlying solutions to DOE missions in energy production, environmental remediation, and climate change science. For more information on the Genomic Science program, see p. 26. To focus the most advanced biotechnology-based resources on the biological challenges of biofuel production, DOE established three Bioenergy Research Centers (BRCs) in September 2007. Each center is pursuing the basic research underlying a range of high-risk, high-return biological solutions for bioenergy applications. Advances resulting from the BRCs are providing the knowledge needed to develop new biobased products, methods, and tools that the emerging biofuel industry can use (see sidebar, Bridging the Gap from Fundamental Biology to Industrial Innovation for Bioenergy, p. 6). The DOE BRCs have developed automated, high-throughput analysis pipelines that will accelerate scientific discovery for biology-based biofuel research. The three centers, which were selected through a scientific peer-review process, are based in geographically diverse locations - the Southeast, the Midwest, and the West Coast - with partners across the nation (see U.S. map, DOE Bioenergy Research Centers and Partners, on back cover). DOE's Lawrence Berkeley National Laboratory leads the DOE Joint BioEnergy Institute (JBEI) in California; DOE's Oak Ridge National Laboratory leads the BioEnergy Science Center (BESC) in Tennessee; and the University of Wisconsin-Madison leads the Great Lakes Bioenergy Research Center (GLBRC). Each center represents a multidisciplinary partnership with expertise spanning the physical and biological sciences, including genomics, microbial and plant biology, analytical chemistry, computational biology and bioinformatics, and engineering. Institutional partners include DOE national laboratories, universities, private companies, and nonprofit organizations.

  10. U.S, Department of Energy's Bioenergy Research Centers An Overview of the Science

    SciTech Connect (OSTI)

    2009-07-01

    Alternative fuels from renewable cellulosic biomass--plant stalks, trunks, stems, and leaves--are expected to significantly reduce U.S. dependence on imported oil while enhancing national energy security and decreasing the environmental impacts of energy use. Ethanol and other advanced biofuels from cellulosic biomass are renewable alternatives that could increase domestic production of transportation fuels, revitalize rural economies, and reduce carbon dioxide and pollutant emissions. According to U.S. Secretary of Energy Steven Chu, 'Developing the next generation of biofuels is key to our effort to end our dependence on foreign oil and address the climate crisis while creating millions of new jobs that can't be outsourced'. In the United States, the Energy Independence and Security Act (EISA) of 2007 is an important driver for the sustainable development of renewable biofuels. As part of EISA, the Renewable Fuel Standard mandates that 36 billion gallons of biofuels are to be produced annually by 2022, of which 16 billion gallons are expected to come from cellulosic feedstocks. Although cellulosic ethanol production has been demonstrated on a pilot level, developing a cost-effective, commercial-scale cellulosic biofuel industry will require transformational science to significantly streamline current production processes. Woodchips, grasses, cornstalks, and other cellulosic biomass are widely abundant but more difficult to break down into sugars than corn grain--the primary source of U.S. ethanol fuel production today. Biological research is key to accelerating the deconstruction of cellulosic biomass into sugars that can be converted to biofuels. The Department of Energy (DOE) Office of Science continues to play a major role in inspiring, supporting, and guiding the biotechnology revolution over the past 25 years. The DOE Genomic Science Program is advancing a new generation of research focused on achieving whole-systems understanding for biology. This program is bringing together scientists in diverse fields to understand the complex biology underlying solutions to DOE missions in energy production, environmental remediation, and climate change science. New interdisciplinary research communities are emerging, as are knowledgebases and scientific and computational resources critical to advancing large-scale, genome-based biology. To focus the most advanced biotechnology-based resources on the biological challenges of biofuel production, DOE established three Bioenergy Research Centers (BRCs) in September 2007. Each center is pursuing the basic research underlying a range of high-risk, high-return biological solutions for bioenergy applications. Advances resulting from the BRCs will provide the knowledge needed to develop new biobased products, methods, and tools that the emerging biofuel industry can use. The scientific rationale for these centers and for other fundamental genomic research critical to the biofuel industry was established at a DOE workshop involving members of the research community (see sidebar, Biofuel Research Plan, below). The DOE BRCs have developed automated, high-throughput analysis pipelines that will accelerate scientific discovery for biology-based biofuel research. The three centers, which were selected through a scientific peer-review process, are based in geographically diverse locations--the Southeast, the Midwest, and the West Coast--with partners across the nation. DOE's Oak Ridge National Laboratory leads the BioEnergy Science Center (BESC) in Tennessee; the University of Wisconsin-Madison leads the Great Lakes Bioenergy Research Center (GLBRC); and DOE's Lawrence Berkeley National Laboratory leads the DOE Joint BioEnergy Institute (JBEI) in California. Each center represents a multidisciplinary partnership with expertise spanning the physical and biological sciences, including genomics, microbial and plant biology, analytical chemistry, computational biology and bioinformatics, and engineering. Institutional partners include DOE national laboratories, universities, private companies, and nonprofit organizations.

  11. Nuclear Science References (NSR) from the National Nuclear Data Center (NNDC)

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    The Nuclear Science References (NSR) database is an indexed bibiliography of primary and secondary references in nuclear physics research. About 80 journals are regularly scanned for articles. Recent references are added on a weekly basis. Approximately 4300 entries are added to the database annually. In general, articles are included in NSR if they include measured, calculated, or deduced quantitative nuclear structure or reaction data. Papers that apply previously known data are generally not included. Examples of this include neutron activation analysis using known cross sections or radiological dating using known half-lives. The database can be searched like a normal bibliographic database but can also be searched by the data that distinguishes it, data such as the nuclide, target/parent/daughter, reaction, incident particles, and outgoing particles. (Specialized Interface) [Taken from the NSR Help pages at http://www.nndc.bnl.gov/nsr/nsr_help.jsp

  12. Simulations for Complex Fluid Flow Problems from Berkeley Lab's Center for Computational Sciences and Engineering (CCSE)

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    The Center for Computational Sciences and Engineering (CCSE) develops and applies advanced computational methodologies to solve large-scale scientific and engineering problems arising in the Department of Energy (DOE) mission areas involving energy, environmental, and industrial technology. The primary focus is in the application of structured-grid finite difference methods on adaptive grid hierarchies for compressible, incompressible, and low Mach number flows. The diverse range of scientific applications that drive the research typically involve a large range of spatial and temporal scales (e.g. turbulent reacting flows) and require the use of extremely large computing hardware, such as the 153,000-core computer, Hopper, at NERSC. The CCSE approach to these problems centers on the development and application of advanced algorithms that exploit known separations in scale; for many of the application areas this results in algorithms are several orders of magnitude more efficient than traditional simulation approaches.

  13. EA-1988: NFSC (Northwest Fisheries Science Center) Earthen Drainage Channel, Burley Creek Hatchery, Port Orchard, Washington

    Broader source: Energy.gov [DOE]

    The National Oceanic and Atmospheric Administration (NOAA), with DOE’s Bonneville Power Administration (BPA) as a cooperating agency, prepared an EA that assesses the potential environmental impacts of a NOAA Northwest Fisheries Science Center proposal to construct an earthen drainage channel at its Burley Creek Hatchery in Kitsap County, Washington. The project would facilitate increased discharge of treated effluent from the hatchery facility into the adjacent Burley Creek. BPA’s proposal is to fund the project. The project website is http://efw.bpa.gov/environmental_services/Document_Library/Burley_Creek/.

  14. Arthur B. (Barney) Maccabe Computer Science Department Center for High Performance Computing

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

    Linux never has been and never will be "Extreme" Arthur B. (Barney) Maccabe Computer Science Department Center for High Performance Computing The University of New Mexico Salishan April 23, 2003 Salishan April 23, 2003 1 This talk was prepared on a Debain Linux box http://www.debian.org using OpenOffice http://www.openoffice.org Salishan April 23, 2003 1 Outline ● My background: lightweight operating systems ● Linux and world domination ● Adapting to innovative technologies ●

  15. The Manuel Lujan, Jr. Neutron Scattering Center (LANSCE) experiment reports 1992 run cycle. Progress report

    SciTech Connect (OSTI)

    DiStravolo, M.A.

    1993-09-01

    This year was the fifth in which LANSCE ran a formal user program. A call for proposals was issued before the scheduled run cycles, and experiment proposals were submitted by scientists from universities, industry, and other research facilities around the world. An external program advisory committee, which LANSCE shares with the Intense Pulsed Neutron Source (IPNS), Argonne National Laboratory, examined the proposals and made recommendations. At LANSCE, neutrons are produced by spallation when a pulsed, 800-MeV proton beam impinges on a tungsten target. The proton pulses are provided by the Clinton P. Anderson Meson Physics Facility (LAMPF) accelerator and an associated Proton Storage Ring (PSR), which can alter the intensity, time structure, and repetition rate of the pulses. The LAMPF protons of Line D are shared between the LANSCE target and the Weapons Neutron Research (WNR) facility, which results in LANSCE spectrometers being available to external users for unclassified research about 80% of each annual LAMPF run cycle. Measurements of interest to the Los Alamos National Laboratory may also be performed and may occupy up to an additional 20% of the available beam time. These experiments are reviewed by an internal program advisory committee. One hundred sixty-seven proposals were submitted for unclassified research and twelve proposals for research of a programmatic interest to the Laboratory; six experiments in support of the LANSCE research program were accomplished during the discretionary periods. Oversubscription for instrument beam time by a factor of three was evident with 839 total days requested and only 371 available for allocation.

  16. The Manuel Lujan, Jr. Neutron Scattering Center, LANSCE experiment reports: 1990 Run Cycle

    SciTech Connect (OSTI)

    DiStravolo, M.A.

    1991-10-01

    This year was the third in which LANSCE ran a formal user program. A call for proposals was issued before the scheduled run cycles, and experiment proposals were submitted by scientists from universities, industry, and other research facilities around the world. An external program advisory committee, which LANSCE shares with the Intense Pulsed Neutron Source (IPNS), Argonne National Laboratory examined the proposals and made recommendations. At LANSCE, neutrons are produced by spallation when a pulsed, 800-MeV proton beam impinges on a tungsten target. The proton pulses are provided by the Clinton P. Anderson Meson Physics Facility (LAMPF) accelerator and an associated Proton Storage Ring (PSR), which can alter the intensity, time structure, and repetition rate of the pulses. The LAMPF protons of Line D are shared between the LANSCE target and the Weapons Neutron Research facility, which results in LANSCE spectrometers being available to external users for unclassified research about 80% of each six-month LAMPF run cycle. Measurements of interest to the Los Alamos National Laboratory may also be performed and may occupy up to an additional 20% of the available beam time. These experiments are reviewed by an internal program advisory committee. One hundred thirty-four proposals were submitted for unclassified research and twelve proposals for research of a programmatic nature to the Laboratory. Our definition of beam availability is when the proton current from the PSR exceeds 50% of the planned value. The PSR ran at 65{mu}A current (average) at 20 Hz for most of 1990. All of the scheduled experiments were performed and experiments in support of the LANSCE research program were accomplished during the discretionary periods.

  17. Siachen Science Center: A concept for cooperation at the top of the world

    SciTech Connect (OSTI)

    Biringer, K.L.

    1998-03-01

    India and Pakistan have engaged in a long-running military dispute in the Siachen Glacier region of the northern Kashmir since 1984. In recent years, several unsuccessful attempts have been made to end the conflict. Despite continuing hostilities, there remains a strong interest in resolving the dispute and eliminating the human and financial costs associated with maintaining troops on the highest battlefield in the world. One resolution to the problem could be the establishment of a scientific research center in the region. The military forces in the region would be replaced with scientists and engineers from both countries who would advance knowledge in science and engineering by operating a high-altitude research station for the study of basic sciences, engineering, and human physiology. The high altitude, remote location, and unique geology would provide an unprecedented opportunity for ground-breaking research. The paper discusses options for such research and precedents, such as the Antarctic Treaty, for research in other hostile environments. 7 figs.

  18. Science

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

    Office of Science Office of Science * * * Office of Science Office of * * * * * Office of Science Office of Science * * * Office of Science * * * * 287 115 ...

  19. Volker Urban | Photosynthetic Antenna Research Center

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

    Volker Urban Volker Urban Volker Urban Principal Investigator E-mail: urbanvs@ornl.gov Phone: 865-576-7221 Fax: 865-574-6080 Website: Oak Ridge National Lab Website Principal Investigator and Themes 1 & 2 Member Dr. Urban conducts Small Angle Neutron Scattering (SANS) studies for the characterization or macromolecular assemblies. Research and Development Staff, Center for Structural Molecular Biology, Chemical Sciences Division 3/23/11:: Neutron analysis yields insight into bacteria for

  20. LANSCE | Lujan Center | Data Management

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

    Lujan Center Data Management Lujan Neutron Scattering Center Logo The Lujan Center within LANSCE utilizes a pulsed source and has a complement of 15 instruments. It maintains a ...

  1. Energy Frontier Research Center Materials Science of Actinides (A "Life at the Frontiers of Energy Research" contest entry from the 2011 Energy Frontier Research Centers (EFRCs) Summit and Forum)

    ScienceCinema (OSTI)

    Burns, Peter (Director, Materials Science of Actinides); MSA Staff

    2011-11-03

    'Energy Frontier Research Center Materials Science of Actinides' was submitted by the EFRC for Materials Science of Actinides (MSA) to the 'Life at the Frontiers of Energy Research' video contest at the 2011 Science for Our Nation's Energy Future: Energy Frontier Research Centers (EFRCs) Summit and Forum. Twenty-six EFRCs created short videos to highlight their mission and their work. MSA is directed by Peter Burns at the University of Notre Dame, and is a partnership of scientists from ten institutions.The Office of Basic Energy Sciences in the U.S. Department of Energy's Office of Science established the 46 Energy Frontier Research Centers (EFRCs) in 2009. These collaboratively-organized centers conduct fundamental research focused on 'grand challenges' and use-inspired 'basic research needs' recently identified in major strategic planning efforts by the scientific community. The overall purpose is to accelerate scientific progress toward meeting the nation's critical energy challenges.

  2. Energy Frontier Research Center Materials Science of Actinides (A "Life at the Frontiers of Energy Research" contest entry from the 2011 Energy Frontier Research Centers (EFRCs) Summit and Forum)

    SciTech Connect (OSTI)

    Burns, Peter; MSA Staff

    2011-05-01

    'Energy Frontier Research Center Materials Science of Actinides' was submitted by the EFRC for Materials Science of Actinides (MSA) to the 'Life at the Frontiers of Energy Research' video contest at the 2011 Science for Our Nation's Energy Future: Energy Frontier Research Centers (EFRCs) Summit and Forum. Twenty-six EFRCs created short videos to highlight their mission and their work. MSA is directed by Peter Burns at the University of Notre Dame, and is a partnership of scientists from ten institutions.The Office of Basic Energy Sciences in the U.S. Department of Energy's Office of Science established the 46 Energy Frontier Research Centers (EFRCs) in 2009. These collaboratively-organized centers conduct fundamental research focused on 'grand challenges' and use-inspired 'basic research needs' recently identified in major strategic planning efforts by the scientific community. The overall purpose is to accelerate scientific progress toward meeting the nation's critical energy challenges.

  3. W.-C. Wang X.-Z. Liang M. D. Dudek S. Cox Atmospheric Sciences Research Center

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

    Wang X.-Z. Liang M. D. Dudek S. Cox Atmospheric Sciences Research Center State University of New York 100 Fuller Road Albany, NY 12205 We participate in the Atmospheric Radiation Measurement (ARM) program with two objectives: 1) to improve the general circulation model (GCM) cloud/radiation treatment with focus on cloud overlapping and the cloud optical properties and 2) to study the effects of cloud/radiation-climate interaction on climate simulations. The project includes three tasks: 1) GCM

  4. Schoenborn wins Bau Neutron Award

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

    of LANL's Bioenergy and Biome Sciences group, to receive the 2016 Bau Neutron Diffraction Award. The award recognizes exceptional research achievement in neutron...

  5. Lujan Neutron Scattering Center

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

    that can travel through several feet of air, but are generally stopped by clothing and skin. Beta emitters occur naturally in the environment, and this incident involved...

  6. Report on enhancing young scholars in science and technology the Center for Excellence in Education

    SciTech Connect (OSTI)

    1996-09-30

    The present stock and flow of highly talented young persons engaged in the global discovery and application of science and technology are critical to the future pace of innovation. Historically, the world`s largest reservoirs of scientists and engineers have been in the Western economies. Overtime, however, Asia has begun to build equivalent pools of scientists and engineers among their university graduates. According to 1993 data from the National Science Foundation and the UNESCO World Science Report, Germany leads all economies with a 67% ratio of science and engineering degrees to total first university degrees compared to the United States with a distant fifth place at 32% behind Italy, Mexico and Poland. If the nation is to keep its scientific and technological prowess, it must capture its very best talent in the science and technology fields. The question is then raised as to the source within the United States of the science and technology talent pool. While between 1978 and 1991 there was an overall decline in male participation in undergraduate (-9%) and graduate degrees (-12%), the number of women receiving undergraduate (+8%) and graduate degrees (+34%) rose dramatically. These numbers are encouraging for women`s participation overall, however, women earn only a small percentage of physical science and engineering degrees. Why are there so few women in mathematics, engineering, and the physical sciences? The answers are complex and begin early in a woman`s exposure to science and mathematics. This report presents results on a study of careers of alumni from the Research Science Institute. Investigations were concerned with the timing of decision processes concerned with the sciences and math and factors that influenced people to turn away from or proceed with careers in science and math.

  7. U.S. Department of Energy's Plasma Science Center holds third annual

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

    Energy Services » U.S. Department of Energy's Clean Energy Investment Center U.S. Department of Energy's Clean Energy Investment Center U.S. Department of Energy's Clean Energy Investment Center In February 2015, the White House launched the Clean Energy Investment Initiative to catalyze expanded private sector investment in climate change solutions, including innovative technologies with breakthrough potential to reduce carbon pollution. To support this initiative the Department of Energy

  8. Nuclear safety analyses and core design calculations to convert the Texas A & M University Nuclear Science Center reactor to low enrichment uranium fuel. Final report

    SciTech Connect (OSTI)

    Parish, T.A.

    1995-03-02

    This project involved performing the nuclear design and safety analyses needed to modify the license issued by the Nuclear Regulatory Commission to allow operation of the Texas A& M University Nuclear Science Center Reactor (NSCR) with a core containing low enrichment uranium (LEU) fuel. The specific type of LEU fuel to be considered was the TRIGA 20-20 fuel produced by General Atomic. Computer codes for the neutronic analyses were provided by Argonne National Laboratory (ANL) and the assistance of William Woodruff of ANL in helping the NSCR staff to learn the proper use of the codes is gratefully acknowledged. The codes applied in the LEU analyses were WIMSd4/m, DIF3D, NCTRIGA and PARET. These codes allowed full three dimensional, temperature and burnup dependent calculations modelling the NSCR core to be performed for the first time. In addition, temperature coefficients of reactivity and pulsing calculations were carried out in-house, whereas in the past this modelling had been performed at General Atomic. In order to benchmark the newly acquired codes, modelling of the current NSCR core with highly enriched uranium fuel was also carried out. Calculated results were compared to both earlier licensing calculations and experimental data and the new methods were found to achieve excellent agreement with both. Therefore, even if an LEU core is never loaded at the NSCR, this project has resulted in a significant improvement in the nuclear safety analysis capabilities established and maintained at the NSCR.

  9. High Flux Isotope Reactor (HFIR) | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Facilities » High Flux Isotope Reactor (HFIR) Scientific User Facilities (SUF) Division SUF Home About User Facilities X-Ray Light Sources Neutron Scattering Facilities Spallation Neutron Source (SNS) High Flux Isotope Reactor (HFIR) Nanoscale Science Research Centers (NSRCs) Projects Accelerator & Detector Research Science Highlights Principal Investigators' Meetings BES Home Neutron Scattering Facilities High Flux Isotope Reactor (HFIR) Print Text Size: A A A FeedbackShare Page Quick

  10. Energy Frontier Research Centers (EFRCs): A Response to Five Challenges for Science and the Imagination (2011 EFRC Summit, panel session)

    ScienceCinema (OSTI)

    Alivisatos, Paul (Director, LBNL); Crabtree, George (ANL); Dresselhaus, Mildred (MIT); Ratner, Mark (Northwestern University)

    2012-03-14

    A distinguished panel of speakers at the 2011 EFRC Summit looks at the EFRC Program and how it serves as a response to "Five Challenges for Science and the Imagination?, the culminating report that arose from a series of Basic Research Needs workshops. The panel members are Paul Alivisatos, the Director of Lawrence Berkeley National Laboratory, George Crabtree, Distinguished Fellow at Argonne National Laboratory, Mildred Dresselhause, Institute Professor at the Massachusetts Institute of Technology, and Mark Ratner, Professor at Northwestern University. The 2011 EFRC Summit and Forum brought together the EFRC community and science and policy leaders from universities, national laboratories, industry and government to discuss "Science for our Nation's Energy Future." In August 2009, the Office of Science established 46 Energy Frontier Research Centers. The EFRCs are collaborative research efforts intended to accelerate high-risk, high-reward fundamental research, the scientific basis for transformative energy technologies of the future. These Centers involve universities, national laboratories, nonprofit organizations, and for-profit firms, singly or in partnerships, selected by scientific peer review. They are funded at $2 to $5 million per year for a total planned DOE commitment of $777 million over the initial five-year award period, pending Congressional appropriations. These integrated, multi-investigator Centers are conducting fundamental research focusing on one or more of several ?grand challenges? and use-inspired ?basic research needs? recently identified in major strategic planning efforts by the scientific community. The purpose of the EFRCs is to integrate the talents and expertise of leading scientists in a setting designed to accelerate research that transforms the future of energy and the environment.

  11. Development of Innovative Radioactive Isotope Production Techniques at the Pennsylvania State University Radiation Science and Engineering Center

    SciTech Connect (OSTI)

    Johnsen, Amanda M.; Heidrich, Brenden; Durrant, Chad; Bascom, Andrew; Unlu, Kenan

    2013-08-15

    The Penn State Breazeale Nuclear Reactor (PSBR) at the Radiation Science and Engineering Center (RSEC) has produced radioisotopes for research and commercial purposes since 1956. With the rebirth of the radiochemistry education and research program at the RSEC, the Center stands poised to produce a variety of radioisotopes for research and industrial work that is in line with the mission of the DOE Office of Science, Office of Nuclear Physics, Isotope Development and Production Research and Application Program. The RSEC received funding from the Office of Science in 2010 to improve production techniques and develop new capabilities. Under this program, we improved our existing techniques to provide four radioisotopes (Mn-56, Br-82, Na-24, and Ar-41) to researchers and industry in a safe and efficient manner. The RSEC is also working to develop new innovative techniques to provide isotopes in short supply to researchers and others in the scientific community, specifically Cu-64 and Cu-67. Improving our existing radioisotopes production techniques and investigating new and innovative methods are two of the main initiatives of the radiochemistry research program at the RSEC.

  12. Neutron and X-ray structural characterization of the hexaaquavanadium(II) compound VSO{sub 4}{center_dot}7H{sub 2}O

    SciTech Connect (OSTI)

    Cotton, F.A.; Falvello, L.R.; Pascual, I.; Tomas, M.; Murillo, C.A. |; Schultz, A.J.

    1994-11-23

    The title compound, for which crystals are more reactive toward oxygen than the chemically similar compound VSO{sub 4}{center_dot}6H{sub 2}O, has been prepared as large single crystals and characterized by both X-ray diffraction at room temperature and neutron diffraction at 11-16 K. VSO{sub 4}{center_dot}7H{sub 2}O crystallizes in the monoclinic space group P2{sub 1}/c, Z = 4, with the following cell dimensions, where in each case the room temperature X-ray value is given first followed by the 11-16 K neutron value: a = 14.130(3), 14.013(2) {angstrom}; b = 6.501(1), 6.481(1) {angstrom}; c = 11.017(2), 10.981(2) {angstrom}; {beta} = 105.64(2), 105.39(1){degrees}; V = 974.5(3), 961.5(3) {angstrom}{sup 3}. The structure was refined to residuals of R = 0.0289 and 0.0766 and quality of fit = 1.047 and 1.427 for X-ray and neutron data, respectively. It consists of two independent centrosymmetric V(H{sub 2}O){sub 6}{sup 2+} ions connected to a sulfate ion and an interstitial water molecule by an extensive network of hydrogen bonds. The room temperature and low-temperature structures are qualitatively identical. Each hydrogen atom is involved in a hydrogen bond. The network of hydrogen bonds is implicated in the stability of VSO{sub 4}{center_dot}7H{sub 2}O in the solid state in dry surroundings.

  13. Science

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

    Science Stockpile Stewardship National Security National Competitiveness Fusion and Ignition Energy for the Future How to Make a Star Discovery Science Photon Science HAPLS

  14. The Center for Material Science of Nuclear Fuel (A "Life at the Frontiers of Energy Research" contest entry from the 2011 Energy Frontier Research Centers (EFRCs) Summit and Forum)

    SciTech Connect (OSTI)

    Allen, Todd; CMSNF Staff

    2011-05-01

    'The Center for Material Science of Nuclear Fuel (CMSNF)' was submitted by the CMSNF to the 'Life at the Frontiers of Energy Research' video contest at the 2011 Science for Our Nation's Energy Future: Energy Frontier Research Centers (EFRCs) Summit and Forum. Twenty-six EFRCs created short videos to highlight their mission and their work. CMSNF, an EFRC directed by Todd Allen at the Idaho National Laboratory is a partnership of scientists from six institutions: INL (lead), Colorado School of Mines, University of Florida, Florida State University, Oak Ridge National Laboratory, and the University of Wisconsin at Madison. The Office of Basic Energy Sciences in the U.S. Department of Energy's Office of Science established the 46 Energy Frontier Research Centers (EFRCs) in 2009. These collaboratively-organized centers conduct fundamental research focused on 'grand challenges' and use-inspired 'basic research needs' recently identified in major strategic planning efforts by the scientific community. The overall purpose is to accelerate scientific progress toward meeting the nation's critical energy challenges. The mission of the Center for Materials Science of Nuclear Fuels is 'to achieve a first-principles based understanding of the effect of irradiation-induced defects and microstructures on thermal transport in oxide nuclear fuels.' Research topics are: phonons, thermal conductivity, nuclear, extreme environment, radiation effects, defects, and matter by design.

  15. The Center for Material Science of Nuclear Fuel (A "Life at the Frontiers of Energy Research" contest entry from the 2011 Energy Frontier Research Centers (EFRCs) Summit and Forum)

    ScienceCinema (OSTI)

    Allen, Todd (Director, Center for Material Science of Nuclear Fuel); CMSNF Staff

    2011-11-02

    'The Center for Material Science of Nuclear Fuel (CMSNF)' was submitted by the CMSNF to the 'Life at the Frontiers of Energy Research' video contest at the 2011 Science for Our Nation's Energy Future: Energy Frontier Research Centers (EFRCs) Summit and Forum. Twenty-six EFRCs created short videos to highlight their mission and their work. CMSNF, an EFRC directed by Todd Allen at the Idaho National Laboratory is a partnership of scientists from six institutions: INL (lead), Colorado School of Mines, University of Florida, Florida State University, Oak Ridge National Laboratory, and the University of Wisconsin at Madison. The Office of Basic Energy Sciences in the U.S. Department of Energy's Office of Science established the 46 Energy Frontier Research Centers (EFRCs) in 2009. These collaboratively-organized centers conduct fundamental research focused on 'grand challenges' and use-inspired 'basic research needs' recently identified in major strategic planning efforts by the scientific community. The overall purpose is to accelerate scientific progress toward meeting the nation's critical energy challenges. The mission of the Center for Materials Science of Nuclear Fuels is 'to achieve a first-principles based understanding of the effect of irradiation-induced defects and microstructures on thermal transport in oxide nuclear fuels.' Research topics are: phonons, thermal conductivity, nuclear, extreme environment, radiation effects, defects, and matter by design.

  16. Jimmy O'Dea > Congressional Fellow - MRS/OSA Science & Engineering > Center

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

    Jim J. Green About Us Jim J. Green - Lead Small Business Specialist Jim J. Green Jim is the Lead Small Business Specialist, at the U.S. Department of Energy, Office of Small and Disadvantaged Business. Jim is a military veteran, and served as an Acquisition Officer. In addition, he was an experienced buyer and small business advocate at a DOE laboratory site. Jim earned his Masters of Science in Business Administration with emphasis in Hospital Administration from the University of Northern

  17. Hampshire College Center for Science Education Final Report on Activities Supported by the Department of Energy Grant No. DE-FG02-06ER64256

    SciTech Connect (OSTI)

    Stillings, Neil, Professor of Psychology; Wenk, Laura, Assistant Professor of Cognition and Education

    2009-12-30

    Hampshire College's Center for Science Education (Center) focuses on teacher professional development, curriculum development, and student enrichment programs. The Center also maintains research programs on teacher change, student learning and instructional effectiveness. The Center's work promotes learning that persists over time and transfers to new situations in and out of school. The projects develop the implications of the increasing agreement among teachers and researchers that effective learning involves active concept mastery and consistent practice with inquiry and critical thinking. The Center's objective is to help strengthen the pipeline of U.S. students pursuing postsecondary study in STEM fields. The Center achieves this by fostering an educational environment in which science is taught as an active, directly experienced endeavor across the K-16 continuum. Too often, young people are dissuaded from pursuing science because they do not see its relevance, instead experiencing it as dry, rote, technical. In contrast, when science is taught as a hands-on, inquiry-driven process, students are encouraged to ask questions grounded in their own curiosity and seek experimental solutions accordingly. In this way, they quickly discover both the profound relevance of science to their daily lives and its accessibility to them. Essentially, they learn to think and act like real scientists. The Centers approach is multi-faceted: it includes direct inquiry-based science instruction to secondary and postsecondary students, educating the next generation of teachers, and providing new educational opportunities for teachers already working in the schools. Funding from the Department of Energy focused on the last population, enabling in-service teachers to explore and experience the pedagogy of inquiry-based science for themselves, and to take it back to their classrooms and students. The Center has demonstrated that the inquiry-based approach to science learning is compatible with existing state curriculum frameworks and produces students who understand and are positively inclined toward science. Funds from this Department of Energy grant supported three projects that involved K-16 science outreach: 1. Teaching Issues and Experiments in Ecology (TIEE). TIEE a peer-reviewed online journal and curriculum resource for postsecondary science teachers. 2. The Collaboration for Excellence in Science Education (CESE). CESE is a partnership with the Amherst, Massachusetts school system to foster the professional development of science teachers, and to perform research on student learning in the sciences and on teacher change. The project draws on Hampshire's long experience with inquiry-oriented and interdisciplinary education, as well as on its unique strengths in cognitive science. The project is run as design research, working with teachers to improve their practices and studying student and/or teacher outcomes. 3. Day in the Lab. Grant funds partially supported the expansion of the ongoing science outreach activities of the School of Natural Science. These activities are focused on local districts with large minority enrollments, including the Amherst, Holyoke and Springfield Public School Districts, and the Pioneer Valley Performing Arts Charter School (PVPA). Each of the three projects supported by the grant met or exceeded its goals. In part, the successes we met were due to continuity and communication among the staff of the programs. At the beginning of the CESE project, a science outreach coordinator was recruited. He worked throughout the grant period along with a senior researcher and the project's curriculum director. Additionally, the director and an undergraduate student conducted research on teacher change. The science outreach coordinator acted as a liaison among Hampshire College, the school districts, and a number of local businesses and agencies, providing organizational support, discussion facilitation, classroom support for teachers, and materials purchase. His presence in the schools kept teachers engaged and

  18. Neutron source

    DOE Patents [OSTI]

    Cason, J.L. Jr.; Shaw, C.B.

    1975-10-21

    A neutron source which is particularly useful for neutron radiography consists of a vessel containing a moderating media of relatively low moderating ratio, a flux trap including a moderating media of relatively high moderating ratio at the center of the vessel, a shell of depleted uranium dioxide surrounding the moderating media of relatively high moderating ratio, a plurality of guide tubes each containing a movable source of neutrons surrounding the flux trap, a neutron shield surrounding one part of each guide tube, and at least one collimator extending from the flux trap to the exterior of the neutron source. The shell of depleted uranium dioxide has a window provided with depleted uranium dioxide shutters for each collimator. Reflectors are provided above and below the flux trap and on the guide tubes away from the flux trap.

  19. [Climate implications of terrestrial paleoclimate]. Quaternary Sciences Center, Desert Research Institute annual report, fiscal year 1994/1995

    SciTech Connect (OSTI)

    Wigand, P.E.

    1995-12-31

    The objective of this study is to collect terrestrial climate indicators for paleoclimate synthesis. The paleobiotic and geomorphic records are being examined for the local and regional impact of past climates to assess Yucca Mountain`s suitability as a high-level nuclear waste repository. In particular these data are being used to provide estimates of the timing, duration and extremes of past periods of moister climate for use in hydrological models of local and regional recharge that are being formulated by USGS and other hydrologists for the Yucca Mountain area. The project includes botanical, faunal, and geomorphic components that will be integrated to accomplish this goal. To this end personnel at the Quaternary Sciences Center of the Desert Research Institute in Reno, Nevada are conducting the following activities: Analyses of packrat middens; Analysis of pollen samples; and Determination of vegetation climate relationships.

  20. Danforth Center Tour | Photosynthetic Antenna Research Center

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

    Danforth Center Tour Danforth Center Tour As part of our Events & Topics in Bioenergy and the Environment series, we hosted a tour to the Donald Danforth Plant Science Center to...

  1. Inverse Design: Playing "Jeopardy" in Materials Science (A "Life at the Frontiers of Energy Research" contest entry from the 2011 Energy Frontier Research Centers (EFRCs) Summit and Forum)

    SciTech Connect (OSTI)

    Alex Zunger; Tumas, Bill; CID Staff

    2011-05-01

    'Inverse Design: Playing 'Jeopardy' in Materials Science' was submitted by the Center for Inverse Design (CID) to the 'Life at the Frontiers of Energy Research' video contest at the 2011 Science for Our Nation's Energy Future: Energy Frontier Research Centers (EFRCs) Summit and Forum. Twenty-six EFRCs created short videos to highlight their mission and their work. CID, an EFRC directed by Bill Tumas at the National Renewable Energy Laboratory is a partnership of scientists from five institutions: NREL (lead), Northwestern University, University of Colorado, Stanford University, and Oregon State University. The Office of Basic Energy Sciences in the U.S. Department of Energy's Office of Science established the 46 Energy Frontier Research Centers (EFRCs) in 2009. These collaboratively-organized centers conduct fundamental research focused on 'grand challenges' and use-inspired 'basic research needs' recently identified in major strategic planning efforts by the scientific community. The overall purpose is to accelerate scientific progress toward meeting the nation's critical energy challenges. The mission of the Center for Inverse Design is 'to replace trial-and-error methods used in the development of materials for solar energy conversion with an inverse design approach powered by theory and computation.' Research topics are: solar photovoltaic, photonic, metamaterial, defects, spin dynamics, matter by design, novel materials synthesis, and defect tolerant materials.

  2. Inverse Design: Playing "Jeopardy" in Materials Science (A "Life at the Frontiers of Energy Research" contest entry from the 2011 Energy Frontier Research Centers (EFRCs) Summit and Forum)

    ScienceCinema (OSTI)

    Alex Zunger (former Director, Center for Inverse Design); Tumas, Bill (Director, Center for Inverse Design); CID Staff

    2011-11-02

    'Inverse Design: Playing 'Jeopardy' in Materials Science' was submitted by the Center for Inverse Design (CID) to the 'Life at the Frontiers of Energy Research' video contest at the 2011 Science for Our Nation's Energy Future: Energy Frontier Research Centers (EFRCs) Summit and Forum. Twenty-six EFRCs created short videos to highlight their mission and their work. CID, an EFRC directed by Bill Tumas at the National Renewable Energy Laboratory is a partnership of scientists from five institutions: NREL (lead), Northwestern University, University of Colorado, Stanford University, and Oregon State University. The Office of Basic Energy Sciences in the U.S. Department of Energy's Office of Science established the 46 Energy Frontier Research Centers (EFRCs) in 2009. These collaboratively-organized centers conduct fundamental research focused on 'grand challenges' and use-inspired 'basic research needs' recently identified in major strategic planning efforts by the scientific community. The overall purpose is to accelerate scientific progress toward meeting the nation's critical energy challenges. The mission of the Center for Inverse Design is 'to replace trial-and-error methods used in the development of materials for solar energy conversion with an inverse design approach powered by theory and computation.' Research topics are: solar photovoltaic, photonic, metamaterial, defects, spin dynamics, matter by design, novel materials synthesis, and defect tolerant materials.

  3. Science

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

    Science /newsroom/_assets/images/science-icon.png Science Cutting edge, multidisciplinary national-security science. Health Space Computing Energy Earth Materials Science Technology The Lab All Jonathan Ward Engle Physicist wins early-career award for isotope work Jonathan Ward Engle, is among 49 winners, of the US Department of Energy's Early Career Research Program awards for 2016. - 5/12/16 Adaptive design framework. Machine learning accelerates the discovery of new materials Researchers

  4. Science

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

    Science Science & Technology Images of Lab scientists and researchers at work. News Releases Science Briefs Photos Picture of the Week Publications Social Media Videos Fact Sheets PHOTOS BY TOPIC Careers Community Visitors Environment History Science The Lab Click thumbnails to enlarge. Photos arranged by most recent first, horizontal formats before vertical. See Flickr for more sizes and details. Astronomical simulation in the CAVE - 1 Astronomical simulation in the CAVE - 1 Scientist sees

  5. Atmospheric Emitted Radiance Interferometer (AERI) Archived Data at the University of Wisconsin Space Science and Engineering Center (SSEC)

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    The AERI instrument is an advanced version of the high spectral resolution interferometer sounder (HIS) designed and fabricated at the University of Wisconsin (Revercomb et al. 1988) to measure upwelling infrared radiances from an aircraft. The AERI is a fully automated ground-based passive infrared interferometer that measures downwelling atmospheric radiance from 3.3 - 18.2 mm (550 - 3000 cm-1) at less than 10-minute temporal resolution with a spectral resolution of one wavenumber. It has been used in DOEs Atmospheric Radiation Measurement (ARM) program. Much of the data available here at the Cooperative Institute for Meteorological Satellite Studies (CIMSS), an institute within the University of Wisconsins Space Science and Engineering Center, may also be available in the ARM Archive. On this website, data and images from six different field experiments are available, along with AERIPLUS realtime data for the Madison, Wisconsin location. Realtime data includes temperature and water vapor time-height cross sections, SKEWT diagrams, convective stability indices, and displays from a rooftop Lidar instrument. The field experiments took place in Oaklahoma and Wisconsin with the AERI prototype.

  6. Atmospheric Emitted Radiance Interferometer (AERI) Archived Data at the University of Wisconsin Space Science and Engineering Center (SSEC)

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    The AERI instrument is an advanced version of the high spectral resolution interferometer sounder (HIS) designed and fabricated at the University of Wisconsin (Revercomb et al. 1988) to measure upwelling infrared radiances from an aircraft. The AERI is a fully automated ground-based passive infrared interferometer that measures downwelling atmospheric radiance from 3.3 - 18.2 mm (550 - 3000 cm-1) at less than 10-minute temporal resolution with a spectral resolution of one wavenumber. It has been used in DOEÆs Atmospheric Radiation Measurement (ARM) program. Much of the data available here at the Cooperative Institute for Meteorological Satellite Studies (CIMSS), an institute within the University of Wisconsin’s Space Science and Engineering Center, may also be available in the ARM Archive. On this website, data and images from six different field experiments are available, along with AERIPLUS realtime data for the Madison, Wisconsin location. Realtime data includes temperature and water vapor time-height cross sections, SKEWT diagrams, convective stability indices, and displays from a rooftop Lidar instrument. The field experiments took place in Oaklahoma and Wisconsin with the AERI prototype.

  7. Earth Sciences Research Center

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

    Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering ...

  8. science

    National Nuclear Security Administration (NNSA)

    through the Predictive Capability Framework (PCF). The PCF is a long-term integrated roadmap to guide the science, technology and engineering activities and Directed Stockpile...

  9. High energy neutron dosimeter

    DOE Patents [OSTI]

    Rai, K.S.F.

    1994-01-11

    A device for measuring dose equivalents in neutron radiation fields is described. The device includes nested symmetrical hemispheres (forming spheres) of different neutron moderating materials that allow the measurement of dose equivalents from 0.025 eV to past 1 GeV. The layers of moderating material surround a spherical neutron counter. The neutron counter is connected by an electrical cable to an electrical sensing means which interprets the signal from the neutron counter in the center of the moderating spheres. The spherical shape of the device allows for accurate measurement of dose equivalents regardless of its positioning. 2 figures.

  10. High energy neutron dosimeter

    DOE Patents [OSTI]

    Sun, Rai Ko S.F. (Albany, CA)

    1994-01-01

    A device for measuring dose equivalents in neutron radiation fields. The device includes nested symmetrical hemispheres (forming spheres) of different neutron moderating materials that allow the measurement of dose equivalents from 0.025 eV to past 1 GeV. The layers of moderating material surround a spherical neutron counter. The neutron counter is connected by an electrical cable to an electrical sensing means which interprets the signal from the neutron counter in the center of the moderating spheres. The spherical shape of the device allows for accurate measurement of dose equivalents regardless of its positioning.

  11. Intense fusion neutron sources

    SciTech Connect (OSTI)

    Kuteev, B. V.; Goncharov, P. R.; Sergeev, V. Yu.; Khripunov, V. I.

    2010-04-15

    The review describes physical principles underlying efficient production of free neutrons, up-to-date possibilities and prospects of creating fission and fusion neutron sources with intensities of 10{sup 15}-10{sup 21} neutrons/s, and schemes of production and application of neutrons in fusion-fission hybrid systems. The physical processes and parameters of high-temperature plasmas are considered at which optimal conditions for producing the largest number of fusion neutrons in systems with magnetic and inertial plasma confinement are achieved. The proposed plasma methods for neutron production are compared with other methods based on fusion reactions in nonplasma media, fission reactions, spallation, and muon catalysis. At present, intense neutron fluxes are mainly used in nanotechnology, biotechnology, material science, and military and fundamental research. In the near future (10-20 years), it will be possible to apply high-power neutron sources in fusion-fission hybrid systems for producing hydrogen, electric power, and technological heat, as well as for manufacturing synthetic nuclear fuel and closing the nuclear fuel cycle. Neutron sources with intensities approaching 10{sup 20} neutrons/s may radically change the structure of power industry and considerably influence the fundamental and applied science and innovation technologies. Along with utilizing the energy produced in fusion reactions, the achievement of such high neutron intensities may stimulate wide application of subcritical fast nuclear reactors controlled by neutron sources. Superpower neutron sources will allow one to solve many problems of neutron diagnostics, monitor nano-and biological objects, and carry out radiation testing and modification of volumetric properties of materials at the industrial level. Such sources will considerably (up to 100 times) improve the accuracy of neutron physics experiments and will provide a better understanding of the structure of matter, including that of the neutron itself.

  12. Production, Distribution, and Applications of Californium-252 Neutron Sources

    SciTech Connect (OSTI)

    Balo, P.A.; Knauer, J.B.; Martin, R.C.

    1999-10-03

    The radioisotope {sup 252}Cf is routinely encapsulated into compact, portable, intense neutron sources with a 2.6-year half-life. A source the size of a person's little finger can emit up to 10{sup 11} neutrons/s. Californium-252 is used commercially as a reliable, cost-effective neutron source for prompt gamma neutron activation analysis (PGNAA) of coal, cement, and minerals, as well as for detection and identification of explosives, laud mines, and unexploded military ordnance. Other uses are neutron radiography, nuclear waste assays, reactor start-up sources, calibration standards, and cancer therapy. The inherent safety of source encapsulations is demonstrated by 30 years of experience and by U.S. Bureau of Mines tests of source survivability during explosions. The production and distribution center for the U. S Department of Energy (DOE) Californium Program is the Radiochemical Engineering Development Center (REDC) at Oak Ridge National Laboratory (ORNL). DOE sells The radioisotope {sup 252}Cf is routinely encapsulated into compact, portable, intense neutron sources with a 2.6- year half-life. A source the size of a person's little finger can emit up to 10 neutrons/s. Californium-252 is used commercially as a reliable, cost-effective neutron source for prompt gamma neutron activation analysis (PGNAA) of coal, cement, and minerals, as well as for detection and identification of explosives, laud mines, and unexploded military ordnance. Other uses are neutron radiography, nuclear waste assays, reactor start-up sources, calibration standards, and cancer therapy. The inherent safety of source encapsulations is demonstrated by 30 years of experience and by U.S. Bureau of Mines tests of source survivability during explosions. The production and distribution center for the U. S Department of Energy (DOE) Californium Program is the Radiochemical Engineering Development Center (REDC) at Oak Ridge National Laboratory(ORNL). DOE sells {sup 252}Cf to commercial reencapsulators domestically and internationally. Sealed {sup 252}Cf sources are also available for loan to agencies and subcontractors of the U.S. government and to universities for educational, research, and medical applications. The REDC has established the Californium User Facility (CUF) for Neutron Science to make its large inventory of {sup 252}Cf sources available to researchers for irradiations inside uncontaminated hot cells. Experiments at the CUF include a land mine detection system, neutron damage testing of solid-state detectors, irradiation of human cancer cells for boron neutron capture therapy experiments, and irradiation of rice to induce genetic mutations.

  13. ORNL, Six US universities initiate collaborative online neutron...

    Office of Scientific and Technical Information (OSTI)

    Resource Relation: Journal Name: Neutron News Research Org: ... United States Language: English Subject: Joint Institute for Neutron Science; condensed matter physics; online education ...

  14. Computing and Computational Sciences Directorate - Divisions

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

    CCSD Divisions Computational Sciences and Engineering Computer Sciences and Mathematics Information Technolgoy Services Joint Institute for Computational Sciences National Center ...

  15. Boron-10 Neutron Detectors for Helium-3 Replacement

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

    efficiencies comparable to Helium-3 detectors, with demonstrated gamma neutron discrimination. Available for thumbnail of Feynman Center (505) 665-9090 Email Boron-10 Neutron...

  16. User Facilities | U.S. DOE Office of Science (SC)

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

    Facilities Scientific User Facilities (SUF) Division SUF Home About User Facilities X-Ray Light Sources Neutron Scattering Facilities Nanoscale Science Research Centers (NSRCs) Projects Accelerator & Detector Research Science Highlights Principal Investigators' Meetings BES Home User Facilities Print Text Size: A A A FeedbackShare Page BES User Facilities Brochure BES User Facilities Brochure .pdf file (7.4MB) The BES user facilities provide open access to specialized instrumentation and

  17. Science Briefs

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

    Science Briefs /newsroom/_assets/images/newsroom-icon.jpg Science Briefs Read in detail about specific Los Alamos science achievements, and the honors our scientists are accruing. Science Briefs - 2016» Science Briefs - 2015» Science Briefs - 2014» Science Briefs - 2013» Science Briefs - 2012» Science Briefs - 2011» The event titled "If I Only Knew Then What I Know Now" is from 2:30 to 5 p.m. in the Student Center Lecture Hall of the University of New Mexico-Los Alamos. Panel

  18. Computational Science

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

    ... Advanced Materials Laboratory Center for Integrated Nanotechnologies Combustion Research Facility Computational Science Research Institute Joint BioEnergy Institute About EC News ...

  19. LANSCE | Lujan Center | Thrust Area | Local Structure, Magnetism, and

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

    Nanomaterials Thrust Area Local Structure, Magnetism, and Nanomaterials The Lujan Neutron Scattering Center encompasses a set of powder diffractometers, instrument scientist specialists, and sample environments (pressure, temperature, and magnetic field) equipped to address challenges in basic and applied science in local structure, magnetism, and nanomaterials. Three powder diffractometers focus on the diffraction needs for nuclear and magnetic structure determination in the fields of

  20. Sandia Energy - Energy Frontier Research Center

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

    Energy Frontier Research Center Home Energy Research EFRCs Solid-State Lighting Science EFRC Energy Frontier Research Center Energy Frontier Research CenterTara...

  1. Energy Frontier Research Centers

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

    This list is frequently updated and will provide users with the latest information on Center publications. http:science.energy.govbesefrcpublications View all News Items

  2. Center for Nonlinear Studies

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

    Center for Nonlinear Studies We conduct and support basic scientific research in nonlinear and ... into consideration both the Lab's needs for basic science relevant to ...

  3. Science

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

    Wikipedia to forecast diseases November 13, 2014 Los Alamos research published in Public Library of Science LOS ALAMOS, N.M., Nov. 13, 2014-Scientists can now monitor and forecast diseases around the globe more effectively by analyzing views of Wikipedia articles, according to a team from Los Alamos National Laboratory. "A global disease-forecasting system will improve the way we respond to epidemics," scientist Sara Del Valle said. "In the same way we check the weather each

  4. Compact neutron generator

    DOE Patents [OSTI]

    Leung, Ka-Ngo; Lou, Tak Pui

    2005-03-22

    A compact neutron generator has at its outer circumference a toroidal shaped plasma chamber in which a tritium (or other) plasma is generated. A RF antenna is wrapped around the plasma chamber. A plurality of tritium ion beamlets are extracted through spaced extraction apertures of a plasma electrode on the inner surface of the toroidal plasma chamber and directed inwardly toward the center of neutron generator. The beamlets pass through spaced acceleration and focusing electrodes to a neutron generating target at the center of neutron generator. The target is typically made of titanium tubing. Water is flowed through the tubing for cooling. The beam can be pulsed rapidly to achieve ultrashort neutron bursts. The target may be moved rapidly up and down so that the average power deposited on the surface of the target may be kept at a reasonable level. The neutron generator can produce fast neutrons from a T-T reaction which can be used for luggage and cargo interrogation applications. A luggage or cargo inspection system has a pulsed T-T neutron generator or source at the center, surrounded by associated gamma detectors and other components for identifying explosives or other contraband.

  5. NEUTRON DENSITY CONTROL IN A NEUTRONIC REACTOR

    DOE Patents [OSTI]

    Young, G.J.

    1959-06-30

    The method and means for controlling the neutron density in a nuclear reactor is described. It describes the method and means for flattening the neutron density distribution curve across the reactor by spacing the absorbing control members to varying depths in the central region closer to the center than to the periphery of the active portion of the reactor to provide a smaller neutron reproduction ratio in the region wherein the members are inserted, than in the remainder of the reactor thereby increasing the over-all potential power output.

  6. Department of Energy Support for Operations of the WMO/GAW Quality Control/Science Activity Center for the Americas

    SciTech Connect (OSTI)

    Hicks, B. B.

    2003-11-13

    As a formal activity of the World Meteorological Organization's Global Atmosphere Watch, to provide, through agency collaboration, a center of excellence in the United States that would impose quality assurance techniques on data collected by national air and precipitation quality networks operating in the Americas (north, south, and central).

  7. A DOE EFRC Center 'title' was established at Princeton University and will focus on the science underlying the development of non-petroleum-based fuels, including carbon-neutral biofuels, and their optimal use in transportation

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

    Research and Education Opportunities at the Combustion Energy Frontier Research Center The Combustion Energy Frontier Research Center (CEFRC) has been established at Princeton University by the U.S. Department of Energy (DOE). This Center focuses on the science underlying the development of non-petroleum-based fuels, including biofuels, and their optimal use in transportation. Fundamental insights in combustion and fuel chemistry ranging from quantum chemistry to turbulence-chemistry

  8. Science Highlights | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Science Highlights Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research ... Options ASCR User Facilities National Energy Research Scientific Computing Center ...

  9. About the Center for Bio-Inspired Solar Fuel Production | Center...

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

    About the Center for Bio-Inspired Solar Fuel Production Center Objective The Science Center ... drawn from the fundamental concepts that underlie photosynthetic energy conversion. ...

  10. The advanced neutron source research and development plan

    SciTech Connect (OSTI)

    Selby, D.L.

    1995-08-01

    The Advanced Neutron Source (ANS) is being designed as a user-oriented neutron research laboratory centered around the most intense continuous beams of thermal and subthermal neutrons in the world (an order of magnitude more intense than beams available from the most advanced existing reactors). The ANS will be built around a new research reactor of 330-MW fission power, producing an unprecedented peak thermal flux of >7 {center_dot} 10{sup 19} {center_dot} m{sup -2} {center_dot} s{sup -1}. Primarily a research facility, the ANS will accommodate more than 1000 academic, industrial, and government researchers each year. They will conduct basic research in all branches of science as well as applied research leading to better understanding of new materials, including high temperature super conductors, plastics, and thin films. Some 48 neutron beam stations will be set up in the ANS beam rooms and the neutron guide hall for neutron scattering and for fundamental and nuclear physics research. There also will be extensive facilities for materials irradiation, isotope production, and analytical chemistry. The top level work breakdown structure (WBS) for the project. As noted in this figure, one component of the project is a research and development (R&D) program (WBS 1.1). This program interfaces with all of the other project level two WBS activities. Because one of the project guidelines is to meet minimum performance goals without relying on new inventions, this R&D activity is not intended to produce new concepts to allow the project to meet minimum performance goals. Instead, the R&D program will focus on the four objectives described.

  11. Center for Emergent Superconductivity (CES) | U.S. DOE Office...

    Office of Science (SC) Website

    Center for Emergent Superconductivity (CES) Energy Frontier Research Centers (EFRCs) EFRCs ... neutron diffraction and scattering, density functional theory (DFT), monte carlo ...

  12. Spallation Neutron Source | Neutron Science at ORNL

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

    credit: Genevieve MartinORNL. Levitating Liquids November 23, 2015 Jaime Fernandez-Baca and Mark Lumsden have been elected fellows of the American Physical Society. Two ORNL...

  13. Neutronic reactor

    DOE Patents [OSTI]

    Wende, Charles W. J. (Augusta, GA); Babcock, Dale F. (Wilmington, DE); Menegus, Robert L. (Wilmington, DE)

    1983-01-01

    A nuclear reactor includes an active portion with fissionable fuel and neutron moderating material surrounded by neutron reflecting material. A control element in the active portion includes a group of movable rods constructed of neutron-absorbing material. Each rod is movable with respect to the other rods to vary the absorption of neutrons and effect control over neutron flux.

  14. Dean Myles | Photosynthetic Antenna Research Center

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

    planning, design, and analysis of isotopic lableing and neutron scattering and diffraction experiments Director, The Center for Structural Molecular Biology Theme 2 Members Theme 1...

  15. Advanced Light Source (ALS) | U.S. DOE Office of Science (SC)

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

    Light Source (ALS) Scientific User Facilities (SUF) Division SUF Home About User Facilities X-Ray Light Sources Advanced Light Source (ALS) Advanced Photon Source (APS) Linac Coherent Light Source (LCLS) National Synchrotron Light Source II (NSLS-II) Stanford Synchrotron Radiation Light Source (SSRL) Neutron Scattering Facilities Nanoscale Science Research Centers (NSRCs) Projects Accelerator & Detector Research Science Highlights Principal Investigators' Meetings BES Home X-Ray Light

  16. Advanced Photon Source (APS) | U.S. DOE Office of Science (SC)

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

    Photon Source (APS) Scientific User Facilities (SUF) Division SUF Home About User Facilities X-Ray Light Sources Advanced Light Source (ALS) Advanced Photon Source (APS) Linac Coherent Light Source (LCLS) National Synchrotron Light Source II (NSLS-II) Stanford Synchrotron Radiation Light Source (SSRL) Neutron Scattering Facilities Nanoscale Science Research Centers (NSRCs) Projects Accelerator & Detector Research Science Highlights Principal Investigators' Meetings BES Home X-Ray Light

  17. FINAL REPORT: DOE CONTRACT NUMBER FG0205ER64026 Biological Neutron Scattering: A Collaboration with the Oak Ridge Center for Structural Molecular Biology

    SciTech Connect (OSTI)

    Jill Trewhella

    2011-01-12

    The overarching goal of this project was to promote applications of small-angle scattering in structural molecular biology by providing model examples of cutting edge applications that demonstrate the unique capabilities and potential of the DOE national user facilities at Oak Ridge, especially the newly commissioned BioSANS. The approach taken was three-fold: (1) to engage in high impact collaborative research projects that would benefit from small-angle neutron scattering to both demonstrate the power of the technique while expanding the potential user community; (2) to provide access to scattering facilities established at the University of Utah to as broad a set of researchers as possible to increase the expertise in small-angle scattering generally; and (3) to develop new methods and tools for small-angle scattering. To these ends, three major research collaborations were pursued that resulted in a significant body of published work where neutron scattering and contrast variation played a major role. These major collaborations involved studies of protein complexes involved in (1) bacterial transcription regulation and adaptive response (a DOE/BER priority area); (2) regulation of cardiac muscle; and (3) neuronal disorders. In addition, to broaden the impact of the project, smaller collaborative efforts were supported that used either small-angle X-ray or neutron scattering. Finally, the DOE supported facilities at the University of Utah were made available to researchers on a service basis and a number of independent groups took advantage of this opportunity. In all of this work, there was an emphasis on the training of students and post docs in scattering techniques, and a set of publications (a book chapter, a review, and an encyclopedia article) were produced to guide the non-specialist potential user of scattering techniques in successful applications of the techniques. We also developed a suite of user friendly web-based computational tools currently being accessed world-wide by researchers as an aid in neutron scattering data interpretation. In all, these collaborative projects and resulted in 29 original refereed journal articles published between 2005 and 2010 and engaged groups from at least 14 Universities (10 US, 4 international) and 3 National Laboratories (2 US, 1 international). An important final initiative from this project was to begin a process for international community agreement on a set of standards for the publication of biomolecular small-angle scattering data. This initiative is being championed with the International Union of Crystallography and has engaged a number of Journal Editors and is a very important step in the maturing of this now burgeoning field.

  18. Graduate Research Opportunities | Center for Bio-Inspired Solar...

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

    Center Objective The Science Center Publications Graduate Research opportunities Undergraduate research opportunities EFRC-501 graduate class Seminar schedules Graduate Research...

  19. A brief History of Neutron Scattering at the Oak Ridge High Flux...

    Office of Scientific and Technical Information (OSTI)

    Neutron scattering at the Oak Ridge National Laboratory ... diffraction and laid the foundation for an active neutron ... Sponsoring Org: SC USDOE - Office of Science (SC) Country of ...

  20. Center for Nanoscale Materials

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

    National Laboratory is a U.S. Department of Energy laboratory managed by UChicago Argonne, LLC. www.anl.gov CENTER FOR NANOSCALE MATERIALS A premier user facility providing expertise, instruments, and infrastructure for interdisciplinary nanoscience and nanotechnology research. The Center for Nanoscale Materials (CNM) is a premier user facility operating as one of the five centers built across the nation as part of the U.S. Department of Energy's (DOE's) Nanoscale Science Research Center program

  1. Coated Fiber Neutron Detector Test

    SciTech Connect (OSTI)

    Lintereur, Azaree T.; Ely, James H.; Kouzes, Richard T.; Stromswold, David C.

    2009-10-23

    Radiation portal monitors used for interdiction of illicit materials at borders include highly sensitive neutron detection systems. The main reason for having neutron detection capability is to detect fission neutrons from plutonium. The currently deployed radiation portal monitors (RPMs) from Ludlum and Science Applications International Corporation (SAIC) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large neutron detector. There is a declining supply of 3He in the world, and thus, methods to reduce the use of this gas in RPMs with minimal changes to the current system designs and sensitivity to cargo-borne neutrons are being investigated. Reported here are the results of tests of the 6Li/ZnS(Ag)-coated non-scintillating plastic fibers option. This testing measured the required performance for neutron detection efficiency and gamma ray rejection capabilities of a system manufactured by Innovative American Technology (IAT).

  2. NEUTRONIC REACTOR

    DOE Patents [OSTI]

    Stewart, H.B.

    1958-12-23

    A nuclear reactor of the type speclfically designed for the irradiation of materials is discussed. In this design a central cyllndrical core of moderating material ls surrounded by an active portlon comprlsed of an annular tank contalning fissionable material immersed ln a liquid moderator. The active portion ls ln turn surrounded by a reflector, and a well ls provided in the center of the core to accommodate the materlals to be irradiated. The over-all dimensions of the core ln at least one plane are equal to or greater than twice the effective slowing down length and equal to or less than twlce the effective diffuslon length for neutrons in the core materials.

  3. Spallation Neutron Source reaches megawatt power

    ScienceCinema (OSTI)

    Dr. William F. Brinkman

    2010-01-08

    The Department of Energy's Spallation Neutron Source (SNS), already the world's most powerful facility for pulsed neutron scattering science, is now the first pulsed spallation neutron source to break the one-megawatt barrier. "Advances in the materials sciences are fundamental to the development of clean and sustainable energy technologies. In reaching this milestone of operating power, the Spallation Neutron Source is providing scientists with an unmatched resource for unlocking the secrets of materials at the molecular level," said Dr. William F. Brinkman, Director of DOE's Office of Science.

  4. Spallation Neutron Source reaches megawatt power

    SciTech Connect (OSTI)

    Dr. William F. Brinkman

    2009-09-30

    The Department of Energy's Spallation Neutron Source (SNS), already the world's most powerful facility for pulsed neutron scattering science, is now the first pulsed spallation neutron source to break the one-megawatt barrier. "Advances in the materials sciences are fundamental to the development of clean and sustainable energy technologies. In reaching this milestone of operating power, the Spallation Neutron Source is providing scientists with an unmatched resource for unlocking the secrets of materials at the molecular level," said Dr. William F. Brinkman, Director of DOE's Office of Science.

  5. DOE to Award $100 Million for Energy Frontier Research Centers...

    Office of Science (SC) Website

    to Award 100 Million for Energy Frontier Research Centers Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research Science Highlights News & Events EFRC News EFRC ...

  6. Cylindrical neutron generator

    DOE Patents [OSTI]

    Leung, Ka-Ngo

    2005-06-14

    A cylindrical neutron generator is formed with a coaxial RF-driven plasma ion source and target. A deuterium (or deuterium and tritium) plasma is produced by RF excitation in a cylindrical plasma ion generator using an RF antenna. A cylindrical neutron generating target is coaxial with the ion generator, separated by plasma and extraction electrodes which contain many slots. The plasma generator emanates ions radially over 360.degree. and the cylindrical target is thus irradiated by ions over its entire circumference. The plasma generator and target may be as long as desired. The plasma generator may be in the center and the neutron target on the outside, or the plasma generator may be on the outside and the target on the inside. In a nested configuration, several concentric targets and plasma generating regions are nested to increase the neutron flux.

  7. Cylindrical neutron generator

    DOE Patents [OSTI]

    Leung, Ka-Ngo

    2008-04-22

    A cylindrical neutron generator is formed with a coaxial RF-driven plasma ion source and target. A deuterium (or deuterium and tritium) plasma is produced by RF excitation in a cylindrical plasma ion generator using an RF antenna. A cylindrical neutron generating target is coaxial with the ion generator, separated by plasma and extraction electrodes which contain many slots. The plasma generator emanates ions radially over 360.degree. and the cylindrical target is thus irradiated by ions over its entire circumference. The plasma generator and target may be as long as desired. The plasma generator may be in the center and the neutron target on the outside, or the plasma generator may be on the outside and the target on the inside. In a nested configuration, several concentric targets and plasma generating regions are nested to increase the neutron flux.

  8. Cylindrical neutron generator

    DOE Patents [OSTI]

    Leung, Ka-Ngo

    2009-12-29

    A cylindrical neutron generator is formed with a coaxial RF-driven plasma ion source and target. A deuterium (or deuterium and tritium) plasma is produced by RF excitation in a cylindrical plasma ion generator using an RF antenna. A cylindrical neutron generating target is coaxial with the ion generator, separated by plasma and extraction electrodes which contain many slots. The plasma generator emanates ions radially over 360.degree. and the cylindrical target is thus irradiated by ions over its entire circumference. The plasma generator and target may be as long as desired. The plasma generator may be in the center and the neutron target on the outside, or the plasma generator may be on the outside and the target on the inside. In a nested configuration, several concentric targets and plasma generating regions are nested to increase the neutron flux.

  9. NEUTRONIC REACTOR CONTROL ELEMENT

    DOE Patents [OSTI]

    Beaver, R.J.; Leitten, C.F. Jr.

    1962-04-17

    A boron-10 containing reactor control element wherein the boron-10 is dispersed in a matrix material is describeri. The concentration of boron-10 in the matrix varies transversely across the element from a minimum at the surface to a maximum at the center of the element, prior to exposure to neutrons. (AEC)

  10. A high intensity 200 mA proton source for the FRANZ-Project (Frankfurt-Neutron-Source at the Stern-Gerlach-Center)

    SciTech Connect (OSTI)

    Schweizer, W. Ratzinger, U.; Klump, B.; Volk, K.

    2014-02-15

    At the University of Frankfurt a high current proton source has been developed and tested for the FRANZ-Project [U. Ratzinger, L. P. Chau, O. Meusel, A. Schempp, K. Volk, M. Heil, F. Kppeler, and R. Stieglitz, Intense pulsed neutron source FRANZ in the 1500 keV range, ICANS-XVIII Proceedings, Dongguan, April 2007, p. 210]. The ion source is a filament driven arc discharge ion source. The new design consists of a plasma generator, equipped with a filter magnet to produce nearly pure proton beams (92 %), and a compact triode extraction system. The beam current density has been enhanced up to 521 mA/cm{sup 2}. Using an emission opening radius of 4 mm, a proton beam current of 240 mA at 50 keV beam energy in continuous wave mode (cw) has been extracted. This paper will present the current status of the proton source including experimental results of detailed investigations of the beam composition in dependence of different plasma parameters. Both, cw and pulsed mode were studied. Furthermore, the performance of the ion source was studied with deuterium as working gas.

  11. Science for Our Nation's Energy Future | U.S. DOE Office of Science...

    Office of Science (SC) Website

    Science for Our Nation's Energy Future Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research Science Highlights News & Events EFRC News EFRC Events DOE Announcements ...

  12. Review of Livermore-Led Neutron Capture Studies Using DANCE

    SciTech Connect (OSTI)

    Parker, W; Sheets, S; Agvaanluvsan, U; Becker, J; Becvar, F; Bredeweg, T; Clement, R; Couture, A; Esch, E; Haight, R; Jandel, M; Krticka, M; Mitchell, G; Macri, R; O'Donnell, J; Reifarth, R; Rundberg, R; Schwantes, J; Ullmann, J; Vieira, D; Wouters, J; Wilk, P

    2007-05-11

    We have made neutron capture cross-section measurements using the white neutron source at the Los Alamos Science Center, the DANCE detector array (Detector for Advanced Neutron Capture Experiments) and targets important for basic science and stockpile stewardship. In this paper, we review results from (n,{gamma}) reactions on {sup 94,95}Mo, {sup 152,154,157,160,nat}Gd, {sup 151,153}Eu and {sup 242m}Am for neutron energies from < 1eV up to {approx} 20 keV. We measured details of the {gamma}-ray cascade following neutron capture, for comparison with results of statistical model simulations. We determined the neutron energy dependent (n,{gamma}) cross section and gained information about statistical decay properties, including the nuclear level density and the photon strength function. Because of the high granularity of the detector array, it is possible to look at gamma cascades with a specified number of transitions (a specific multiplicity). We simulated {gamma}-ray cascades using a combination of the DICEBOX/GEANT computer codes. In the case of the deformed nuclei, we found evidence of a scissors-mode resonance. For the Eu, we also determined the (n,{gamma}) cross sections. For the {sup 94,95}Mo, we focused on the spin and parity assignments of the resonances and the determination of the photon strength functions for the compound nuclei {sup 95,96}Mo. Future plans include measurements on actinide targets; our immediate interest is in {sup 242m}Am.

  13. National Science Bowl 2013 | Department of Energy

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

    Science Bowl 2013 National Science Bowl 2013 Addthis National Science Bowl 2013 1 of 16 National Science Bowl 2013 The 2013 National Science Bowl started off at the 4H Center,...

  14. Better Buildings Residential Program Solution Center Demonstration |

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

    Department of Energy Residential Program Solution Center Demonstration Better Buildings Residential Program Solution Center Demonstration Better Buildings Residential Program Solution Center Demonstration from the U.S. Department of Energy. PDF icon Solution Center Demo More Documents & Publications Building Science Solutions … Faster and Better Presentation: Better Buildings Residential Program Solution Center Presentation: Better Buildings Residential Program Solution Center

  15. Neutron skins and neutron stars

    SciTech Connect (OSTI)

    Piekarewicz, J.

    2013-11-07

    The neutron-skin thickness of heavy nuclei provides a fundamental link to the equation of state of neutron-rich matter, and hence to the properties of neutron stars. The Lead Radius Experiment ('PREX') at Jefferson Laboratory has recently provided the first model-independence evidence on the existence of a neutron-rich skin in {sup 208}Pb. In this contribution we examine how the increased accuracy in the determination of neutron skins expected from the commissioning of intense polarized electron beams may impact the physics of neutron stars.

  16. Neutron guide

    DOE Patents [OSTI]

    Greene, Geoffrey L.

    1999-01-01

    A neutron guide in which lengths of cylindrical glass tubing have rectangular glass plates properly dimensioned to allow insertion into the cylindrical glass tubing so that a sealed geometrically precise polygonal cross-section is formed in the cylindrical glass tubing. The neutron guide provides easier alignment between adjacent sections than do the neutron guides of the prior art.

  17. Neutron dosimetry

    DOE Patents [OSTI]

    Quinby, Thomas C.

    1976-07-27

    A method of measuring neutron radiation within a nuclear reactor is provided. A sintered oxide wire is disposed within the reactor and exposed to neutron radiation. The induced radioactivity is measured to provide an indication of the neutron energy and flux within the reactor.

  18. Protons Hog the Momentum in Neutron-Rich Nuclei | U.S. DOE Office...

    Office of Science (SC) Website

    Protons Hog the Momentum in Neutron-Rich Nuclei Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Funding Opportunities Nuclear Science ...

  19. Protons and Neutrons for Testing at LBNL | U.S. DOE Office of...

    Office of Science (SC) Website

    Protons and Neutrons for Testing at LBNL Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Applications of Nuclear Science Applications of ...

  20. Science Briefs

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

    Science Briefs /newsroom/_assets/images/newsroom-icon.jpg Science Briefs Read in detail about specific Los Alamos science achievements, and the honors our scientists are accruing. News Releases Science Briefs Photos Picture of the Week Publications Social Media Videos Fact Sheets The event titled "If I Only Knew Then What I Know Now" is from 2:30 to 5 p.m. in the Student Center Lecture Hall of the University of New Mexico-Los Alamos. Panel discussion to explore transitions in women's

  1. Neutron storage time for the neutron EDM experiment (Conference) | SciTech

    Office of Scientific and Technical Information (OSTI)

    Connect Neutron storage time for the neutron EDM experiment Citation Details In-Document Search Title: Neutron storage time for the neutron EDM experiment × You are accessing a document from the Department of Energy's (DOE) SciTech Connect. This site is a product of DOE's Office of Scientific and Technical Information (OSTI) and is provided as a public service. Visit OSTI to utilize additional information resources in energy science and technology. A paper copy of this document is also

  2. Cross section measurements at LANSCE for defense, science and applications

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Nelson, Ronald O.; Schwengner, R.; Zuber, K.

    2015-05-28

    The Los Alamos Neutron Science Center (LANSCE) has three neutron sources that are used for nuclear science measurements. These sources are driven by an 800 MeV proton linear accelerator and cover an energy range from sub-thermal to hundreds of MeV. Research at the facilities is performed under the auspices of a US DOE user program under which research proposals are rated for merit by a program advisory committee and are scheduled based on merit and availability of beam time. A wide variety of instruments is operated at the neutron flight paths at LANSCE including neutron detector arrays, gamma-ray detector arrays,more » fission fragment detectors, and charged particle detectors. These instruments provide nuclear data for multiple uses that range from increasing knowledge in fundamental science to satisfying data needs for diverse applications such as nuclear energy, global security, and industrial applications. In addition, highlights of recent research related to cross sections measurements are presented, and future research initiatives are discussed.« less

  3. Cross section measurements at LANSCE for defense, science and applications

    SciTech Connect (OSTI)

    Nelson, Ronald O.; Schwengner, R.; Zuber, K.

    2015-05-28

    The Los Alamos Neutron Science Center (LANSCE) has three neutron sources that are used for nuclear science measurements. These sources are driven by an 800 MeV proton linear accelerator and cover an energy range from sub-thermal to hundreds of MeV. Research at the facilities is performed under the auspices of a US DOE user program under which research proposals are rated for merit by a program advisory committee and are scheduled based on merit and availability of beam time. A wide variety of instruments is operated at the neutron flight paths at LANSCE including neutron detector arrays, gamma-ray detector arrays, fission fragment detectors, and charged particle detectors. These instruments provide nuclear data for multiple uses that range from increasing knowledge in fundamental science to satisfying data needs for diverse applications such as nuclear energy, global security, and industrial applications. In addition, highlights of recent research related to cross sections measurements are presented, and future research initiatives are discussed.

  4. Novel Large Area High Resolution Neutron Detector for the Spallation Neutron Source

    SciTech Connect (OSTI)

    Lacy, Jeffrey L

    2009-05-22

    Neutron scattering is a powerful technique that is critically important for materials science and structural biology applications. The knowledge gained from past developments has resulted in far-reaching advances in engineering, pharmaceutical and biotechnology industries, to name a few. New facilities for neutron generation at much higher flux, such as the SNS at Oak Ridge, TN, will greatly enhance the capabilities of neutron scattering, with benefits that extend to many fields and include, for example, development of improved drug therapies and materials that are stronger, longer-lasting, and more impact-resistant. In order to fully realize this enhanced potential, however, higher neutron rates must be met with improved detection capabilities, particularly higher count rate capability in large size detectors, while maintaining practicality. We have developed a neutron detector with the technical and economic advantages to accomplish this goal. This new detector has a large sensitive area, offers 3D spatial resolution, high sensitivity and high count rate capability, and it is economical and practical to produce. The proposed detector technology is based on B-10 thin film conversion of neutrons in long straw-like gas detectors. A stack of many such detectors, each 1 meter in length, and 4 mm in diameter, has a stopping power that exceeds that of He-3 gas, contained at practical pressures within an area detector. With simple electronic readout methods, straw detector arrays can provide spatial resolution of 4 mm FWHM or better, and since an array detector of such form consists of several thousand individual elements per square meter, count rates in a 1 m^2 detector can reach 2?10^7 cps. Moreover, each individual event can be timetagged with a time resolution of less than 0.1 ?sec, allowing accurate identification of neutron energy by time of flight. Considering basic elemental cost, this novel neutron imaging detector can be commercially produced economically, probably at a small fraction of the cost of He-3 detectors. In addition to neutron scattering science, the fully developed base technology can be used as a rugged, low-cost neutron detector in area monitoring and surveying. Radiation monitors are used in a number of other settings for occupational and environmental radiation safety. Such a detector can also be used in environmental monitoring and remote nuclear power plant monitoring. For example, the Department of Energy could use it to characterize nuclear waste dumps, coordinate clean-up efforts, and assess the radioactive contaminants in the air and water. Radiation monitors can be used to monitor the age and component breakdown of nuclear warheads and to distinguish between weapons and reactor grade plutonium. The UN's International Atomic Energy Agency (IAEA) uses radiation monitors for treaty verification, remote monitoring, and enforcing the non-proliferation of nuclear weapons. As part of treaty verification, monitors can be used to certify the contents of containers during inspections. They could be used for portal monitoring to secure border checkpoints, sea ports, air cargo centers, public parks, sporting venues, and key government buildings. Currently, only 2% of all sea cargo shipped is inspected for radiation sources. In addition, merely the presence of radiation is detected and nothing is known about the radioactive source until further testing. The utilization of radiation monitors with neutron sensitivity and capability of operation in hostile port environments would increase the capacity and effectiveness of the radioactive scanning processes.

  5. Spherical neutron generator

    DOE Patents [OSTI]

    Leung, Ka-Ngo

    2006-11-21

    A spherical neutron generator is formed with a small spherical target and a spherical shell RF-driven plasma ion source surrounding the target. A deuterium (or deuterium and tritium) ion plasma is produced by RF excitation in the plasma ion source using an RF antenna. The plasma generation region is a spherical shell between an outer chamber and an inner extraction electrode. A spherical neutron generating target is at the center of the chamber and is biased negatively with respect to the extraction electrode which contains many holes. Ions passing through the holes in the extraction electrode are focused onto the target which produces neutrons by D-D or D-T reactions.

  6. Fundamental Science Applications

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

    Fundamental Science Applications Fundamental Science Applications Supporing research to understand, predict and ultimately control matter and energy at the electronic, atomic, and molecular levels. Contact thumbnail of Business Development Executive Don Hickmott Business Development Executive Richard P. Feynman Center for Innovation (505) 667-8753 Email Fundamental Science Applications The DOE Basic Energy Science (BES) program supports research to understand, predict and ultimately control

  7. Cyclotrons to Make Neutrons & Radioactive Targets for SBSS at...

    Office of Science (SC) Website

    Cyclotrons to Make Neutrons & Radioactive Targets for SBSS at LBNL Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Applications of Nuclear ...

  8. Direct Fast-Neutron Detection: A Progress Report (Technical Report...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Direct Fast-Neutron Detection: A Progress Report Citation Details ... Visit OSTI to utilize additional information resources in energy science and technology. A ...

  9. The Spallation Neutron Source: A powerful tool for materials...

    Office of Scientific and Technical Information (OSTI)

    materials, biology, and beyond. Neutron Science at SNS will be complemented by research opportunities at several other facilities under way at Oak Ridge National Laboratory. ...

  10. About NIF & Photon Science

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

    NIF users include scientists from the U.S. Department of Energy national laboratories, worldwide fusion energy and high energy density science research centers, academia, and other ...

  11. Biological Sciences

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

    Science Energy Science Engineering Science Environmental Science Fusion Science Math & Computer Science Nuclear Science Share Your Research NERSC Citations Home Science at...

  12. Neutron detector

    DOE Patents [OSTI]

    Stephan, Andrew C.; Jardret; Vincent D.

    2011-04-05

    A neutron detector has a volume of neutron moderating material and a plurality of individual neutron sensing elements dispersed at selected locations throughout the moderator, and particularly arranged so that some of the detecting elements are closer to the surface of the moderator assembly and others are more deeply embedded. The arrangement captures some thermalized neutrons that might otherwise be scattered away from a single, centrally located detector element. Different geometrical arrangements may be used while preserving its fundamental characteristics. Different types of neutron sensing elements may be used, which may operate on any of a number of physical principles to perform the function of sensing a neutron, either by a capture or a scattering reaction, and converting that reaction to a detectable signal. High detection efficiency, an ability to acquire spectral information, and directional sensitivity may be obtained.

  13. Science Museum

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

    Nanotechnology and algae biofuels exhibits open July 26 at the Bradbury Science Museum July 22, 2013 LOS ALAMOS, N.M., July 22, 2013-Los Alamos National Laboratory's Bradbury Science Museum is opening two new exhibits July 26 as part of the Laboratory's 70th Anniversary celebration. One is a nanotechnology exhibit featuring the Laboratory's Center for Integrated Nanotechnologies (CINT) and the other is an algae biofuel exhibit from the Laboratory and the New Mexico Consortium. An opening

  14. Other | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Other Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research Science ... as part of Science for Our Nation's Energy Future: EFRC Summit and Forum External link . ...

  15. Ultracold neutrons

    SciTech Connect (OSTI)

    Saunders, Alexander

    2015-06-22

    This series of slides describes ultracold neutrons (UCN) and their properties, various UCN sources, and an overview of UCN-based experiments. Numerous diagrams and photographs are included.

  16. MAGNETIC NEUTRON SCATTERING

    SciTech Connect (OSTI)

    ZALIZNYAK,I.A.; LEE,S.H.

    2004-07-30

    Much of our understanding of the atomic-scale magnetic structure and the dynamical properties of solids and liquids was gained from neutron-scattering studies. Elastic and inelastic neutron spectroscopy provided physicists with an unprecedented, detailed access to spin structures, magnetic-excitation spectra, soft-modes and critical dynamics at magnetic-phase transitions, which is unrivaled by other experimental techniques. Because the neutron has no electric charge, it is an ideal weakly interacting and highly penetrating probe of matter's inner structure and dynamics. Unlike techniques using photon electric fields or charged particles (e.g., electrons, muons) that significantly modify the local electronic environment, neutron spectroscopy allows determination of a material's intrinsic, unperturbed physical properties. The method is not sensitive to extraneous charges, electric fields, and the imperfection of surface layers. Because the neutron is a highly penetrating and non-destructive probe, neutron spectroscopy can probe the microscopic properties of bulk materials (not just their surface layers) and study samples embedded in complex environments, such as cryostats, magnets, and pressure cells, which are essential for understanding the physical origins of magnetic phenomena. Neutron scattering is arguably the most powerful and versatile experimental tool for studying the microscopic properties of the magnetic materials. The magnitude of the cross-section of the neutron magnetic scattering is similar to the cross-section of nuclear scattering by short-range nuclear forces, and is large enough to provide measurable scattering by the ordered magnetic structures and electron spin fluctuations. In the half-a-century or so that has passed since neutron beams with sufficient intensity for scattering applications became available with the advent of the nuclear reactors, they have became indispensable tools for studying a variety of important areas of modern science, ranging from large-scale structures and dynamics of polymers and biological systems, to electronic properties of today's technological materials. Neutron scattering developed into a vast field, encompassing many different experimental techniques aimed at exploring different aspects of matter's atomic structure and dynamics. Modern magnetic neutron scattering includes several specialized techniques designed for specific studies and/or particular classes of materials. Among these are magnetic reflectometry aimed at investigating surfaces, interfaces, and multilayers, small-angle scattering for the large-scale structures, such as a vortex lattice in a superconductor, and neutron spin-echo spectroscopy for glasses and polymers. Each of these techniques and many others offer exciting opportunities for examining magnetism and warrant extensive reviews, but the aim of this chapter is not to survey how different neutron-scattering methods are used to examine magnetic properties of different materials. Here, we concentrate on reviewing the basics of the magnetic neutron scattering, and on the recent developments in applying one of the oldest methods, the triple axis spectroscopy, that still is among the most extensively used ones. The developments discussed here are new and have not been coherently reviewed. Chapter 2 of this book reviews magnetic small-angle scattering, and modern techniques of neutron magnetic reflectometry are discussed in Chapter 3.

  17. Forensic Technology Center of Excellence | The Ames Laboratory

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

    Forensic Technology Center of Excellence FWP/Project Description: This project is a collaborative effort between the National Forensic Science Technology Center; the National Center for Forensic Science; the National Clearinghouse for Science, Technology, and the Law; Marshall University's Forensic Science Center; and the Midwest Forensics Resource Center. The purpose of the project is to facilitate the adoption of new tools and technologies into practice by criminal justice agencies through

  18. American Conference on Neutron Scattering 2014

    SciTech Connect (OSTI)

    Dillen, J. Ardie

    2014-12-31

    Scientists from the around the world converged in Knoxville, TN to have share ideas, present technical information and contribute to the advancement of neutron scattering. Featuring over 400 oral/poster presentations, ACNS 2014 offered a strong program of plenary, invited and contributed talks and poster sessions covering topics in soft condensed matter, hard condensed matter, biology, chemistry, energy and engineering applications in neutron physics – confirming the great diversity of science that is enabled by neutron scattering.

  19. Energy Security Center

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

    Energy Security Center Energy Security Center Developing new ideas for reliable, secure, and sustainable carbon neutral energy solutions for the nation-the portal to LANL's diverse energy security research enterprise. Contact Leader Steven Buelow (505) 663 5629 Email Program Administrator Jutta Kayser (505) 663-5649 Email Research focus areas Materials and concepts for clean energy Science for renewable energy sources Superconducting cables Energy storage Fuel cells Mitigating impacts of global

  20. NEUTRONIC REACTOR

    DOE Patents [OSTI]

    Fermi, E.; Zinn, W.H.; Anderson, H.L.

    1958-09-16

    Means are presenied for increasing the reproduction ratio of a gaphite- moderated neutronic reactor by diminishing the neutron loss due to absorption or capture by gaseous impurities within the reactor. This means comprised of a fluid-tight casing or envelope completely enclosing the reactor and provided with a valve through which the casing, and thereby the reactor, may be evacuated of atmospheric air.

  1. Prompt fission neutron spectra of actinides

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Capote, R.; Chen, Y. -J.; Hambsch, F. -J.; Kornilov, N. V.; Lestone, J. P.; Litaize, O.; Morillon, B.; Neudecker, D.; Oberstedt, S.; Ohsawa, T.; et al

    2016-01-06

    Here, the energy spectrum of prompt neutrons emitted in fission (PFNS) plays a very important role in nuclear science and technology. A Coordinated Research Project (CRP) "Evaluation of Prompt Fission Neutron Spectra of Actinides" was established by the IAEA Nuclear Data Section in 2009, with the major goal to produce new PFNS evaluations with uncertainties for actinide nuclei.

  2. Neutron tubes

    DOE Patents [OSTI]

    Leung, Ka-Ngo; Lou, Tak Pui; Reijonen, Jani

    2008-03-11

    A neutron tube or generator is based on a RF driven plasma ion source having a quartz or other chamber surrounded by an external RF antenna. A deuterium or mixed deuterium/tritium (or even just a tritium) plasma is generated in the chamber and D or D/T (or T) ions are extracted from the plasma. A neutron generating target is positioned so that the ion beam is incident thereon and loads the target. Incident ions cause D-D or D-T (or T-T) reactions which generate neutrons. Various embodiments differ primarily in size of the chamber and position and shape of the neutron generating target. Some neutron generators are small enough for implantation in the body. The target may be at the end of a catheter-like drift tube. The target may have a tapered or conical surface to increase target surface area.

  3. Top Science of 2013

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

    Space probes predict hazards to protect spacecraft /science-innovation/_assets/images/icon-science.jpg Top Science of 2013 Our strong interdisciplinary teaming and unique research facilities allow us to develop solutions to complex problems, and to support partners and collaborators, all with the goal of strengthening national security and making a safer world. Portable laser tool to thwart nuclear smugglers placeholder Researchers demonstrated for the first time that laser-generated neutrons

  4. Neutron detection using a current biased kinetic inductance detector...

    Office of Scientific and Technical Information (OSTI)

    Science Division, J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195 (Japan) National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki ...

  5. Nanoscience at Work: Creating Energy from Sunlight (LBNL Science...

    Office of Scientific and Technical Information (OSTI)

    Friends of Science: Chabot Space and Science Center; The Exploratorium; Lawrence Hall of Science; Osher Lifelong Learning Institute; University of California - Berkeley,...

  6. Energy Frontier Research Centers (EFRCs): A Response to Five...

    Office of Scientific and Technical Information (OSTI)

    Energy Frontier Research Centers (EFRCs): A Response to Five Challenges for Science and ... Citation Details In-Document Search Title: Energy Frontier Research Centers (EFRCs): A ...

  7. Materials Science of Actinides (MSA) | U.S. DOE Office of Science...

    Office of Science (SC) Website

    X-ray diffraction and scattering, X-ray imaging, X-ray spectroscopy, electron microscopy, scanning probe microscopy, surface science, neutron diffraction and scattering, laser ...

  8. Center Organization | Center for Energy Efficient Materials

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

    Center Organization People People Scientific Advisory Board Center Organization

  9. Thermal neutron detection system

    DOE Patents [OSTI]

    Peurrung, Anthony J. (Richland, WA); Stromswold, David C. (West Richland, WA)

    2000-01-01

    According to the present invention, a system for measuring a thermal neutron emission from a neutron source, has a reflector/moderator proximate the neutron source that reflects and moderates neutrons from the neutron source. The reflector/moderator further directs thermal neutrons toward an unmoderated thermal neutron detector.

  10. neutron | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    neutron Sniffing out danger from above NNSA's efforts to prevent, counter, and respond to the dangers of nuclear proliferation and terrorism are vital to U.S. national security. Terrorist attacks in the past year in Europe and the United States have highlighted the evolving and unpredictable nature of the threat. Science,...

  11. Protons Pair Up With Neutrons | Jefferson Lab

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

    Protons Pair Up With Neutrons Embargoed: Not for Release Until 2:00 p.m. Eastern Time Thursday, 29 May Contact: Kandice Carter 757-269-7263 Protons Pair Up With Neutrons NEWPORT NEWS, VA - Research performed at the U.S. Department of Energy's Thomas Jefferson National Accelerator Facility has found that protons are about 20 times more likely to pair up with neutrons than with other protons in the nucleus. The result will be published online by the journal Science, at the Science Express website.

  12. NEUTRONIC REACTORS

    DOE Patents [OSTI]

    Wigner, E.P.

    1960-11-22

    A nuclear reactor is described wherein horizontal rods of thermal- neutron-fissionable material are disposed in a body of heavy water and extend through and are supported by spaced parallel walls of graphite.

  13. NEUTRONIC REACTOR

    DOE Patents [OSTI]

    Wade, E.J.

    1958-09-16

    This patent relates to a reflector means for a neutronic reactor. A reflector comprised of a plurality of vertically movable beryllium control members is provided surrounding the sides of the reactor core. An absorber of fast neutrons comprised of natural uramum surrounds the reflector. An absorber of slow neutrons surrounds the absorber of fast neutrons and is formed of a plurality of beryllium blocks having natural uranium members distributcd therethrough. in addition, a movable body is positioned directly below the core and is comprised of a beryllium reflector and an absorbing member attached to the botiom thereof, the absorbing member containing a substance selected from the goup consisting of natural urantum and Th/sup 232/.

  14. NEUTRONIC REACTOR

    DOE Patents [OSTI]

    Fraas, A.P.; Mills, C.B.

    1961-11-21

    A neutronic reactor in which neutron moderation is achieved primarily in its reflector is described. The reactor structure consists of a cylindrical central "island" of moderator and a spherical moderating reflector spaced therefrom, thereby providing an annular space. An essentially unmoderated liquid fuel is continuously passed through the annular space and undergoes fission while contained therein. The reactor, because of its small size, is particularly adapted for propulsion uses, including the propulsion of aircraft. (AEC)

  15. ARM - Publications: Science Team Meeting Documents

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

    Cohn, S.A. (a), and Yoneyama, K. (b), National Center for Atmospheric Research (a), Japan Marine Science and Technology Center (b) Eleventh Atmospheric Radiation Measurement...

  16. NREL: Energy Sciences - Chemistry and Nanoscience

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

    and comprises the Chemical and Material Sciences Center and the National Center for Photovoltaics. Printable Version NREL is a national laboratory of the U.S. Department of...

  17. Neutron range spectrometer

    DOE Patents [OSTI]

    Manglos, S.H.

    1988-03-10

    A neutron range spectrometer and method for determining the neutron energy spectrum of a neutron emitting source are disclosed. Neutrons from the source are colliminated along a collimation axis and a position sensitive neutron counter is disposed in the path of the collimated neutron beam. The counter determines positions along the collimation axis of interactions between the neutrons in the neutron beam and a neutron-absorbing material in the counter. From the interaction positions, a computer analyzes the data and determines the neutron energy spectrum of the neutron beam. The counter is preferably shielded and a suitable neutron-absorbing material is He-3. 1 fig.

  18. Contact us | Energy Frontier Research Centers

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

    Contact us Home Director Donald T Morelli Professor of Materials Science and Director, MSUDOE Energy Frontier Research Center Department of Chemical Engineering & Materials...

  19. Joint Center for Energy Storage Research

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

    Joint Center for Energy Storage Research Storage at the ... discusses how a next-gen grid needs next-gen storage. ... understand their basic science, accelerate ...

  20. Jefferson Lab technology, capabilities take center stage in construction of

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

    portion of DOE's Spallation Neutron Source accelerator | Jefferson Lab technology, capabilities take center stage in construction of portion of DOE's Spallation Neutron Source accelerator Medium beta cryomodule JLab staff prepare to load the medium β cryomodule onto a flatbed semi for its road test. Jefferson Lab technology, capabilities take center stage in construction of portion of DOE's Spallation Neutron Source accelerator By James Schultz January 27, 2003 Jefferson Lab is once again

  1. University of Wisconsin - Madison Space Science and Engineering Center Leslie Moy, Lori Borg, Bob Knuteson, Hank Revercomb, Joel Susskind, and Dave Tobin

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

    Technical Information University of Missouri Spotlights Home DOE Applauds UM Science and Technical Programs Harnessing Radioactivity for Cancer Therapy Scientists from the University of Missouri, Oak Ridge National Lab and the University of Tennessee Graduate School of Medicine harness alpha particles for radiation cancer therapy. Gold Coated Lanthanide Phosphate Nanoparticles for Targeted Alpha Generator Radiotherapy, PLOS ONE Alpha Particle Therapy,Credit: Nathan Hurst University of

  2. A Look Inside Argonne's Center for Nanoscale Materials | Argonne National

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

    Laboratory A Look Inside Argonne's Center for Nanoscale Materials Share Topic Programs Materials science Nanoscience

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

    SciTech Connect (OSTI)

    Radev, R.

    2015-07-07

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

  4. Explosives Center

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

    Explosives Center Explosives Center at Los Alamos National Laboratory A world leader in energetic materials research, development and applications, the Explosives Center's unique capabilities enable a dynamic, flexible response to address multiple evolving mission needs. explosives experiment Comprehensive energetic materials development, characterization and testing are key strengths at Los Alamos National Laboratory. An experimental explosive is shown igniting during small-scale impact

  5. NEUTRONIC REACTOR

    DOE Patents [OSTI]

    Fermi, E.; Szilard, L.

    1957-09-24

    Reactors of the type employing plates of natural uranium in a moderator are discussed wherein the plates are um-formly disposed in parallel relationship to each other thereby separating the moderator material into distinct and individual layers. Each plate has an uninterrupted sunface area substantially equal to the cross-sectional area of the active portion of the reactor, the particular size of the plates and the volume ratio of moderator to uranium required to sustain a chain reaction being determinable from the known purity of these materials and other characteristics such as the predictable neutron losses due to the formation of radioactive elements of extremely high neutron capture cross section.

  6. NEUTRONIC REACTOR

    DOE Patents [OSTI]

    Wigner, E.P.; Weinberg, A.W.; Young, G.J.

    1958-04-15

    A nuclear reactor which uses uranium in the form of elongated tubes as fuel elements and liquid as a coolant is described. Elongated tubular uranium bodies are vertically disposed in an efficient neutron slowing agent, such as graphite, for example, to form a lattice structure which is disposed between upper and lower coolant tanks. Fluid coolant tubes extend through the uranium bodies and communicate with the upper and lower tanks and serve to convey the coolant through the uranium body. The reactor is also provided with means for circulating the cooling fluid through the coolant tanks and coolant tubes, suitable neutron and gnmma ray shields, and control means.

  7. CHINA SPALLATION NEUTRON SOURCE DESIGN.

    SciTech Connect (OSTI)

    WEI,J.

    2007-01-29

    The China Spallation Neutron Source (CSNS) is an accelerator-based high-power project currently in preparation under the direction of the Chinese Academy of Sciences (CAS). The complex is based on an H- linear accelerator, a rapid cycling proton synchrotron accelerating the beam to 1.6 GeV, a solid tungsten target station, and five initial instruments for spallation neutron applications. The facility will operate at 25 Hz repetition rate with a phase-I beam power of about 120 kW. The major challenge is to build a robust and reliable user's facility with upgrade potential at a fractional of ''world standard'' cost.

  8. Genomic Science | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Genomic Science Biological and Environmental Research (BER) BER Home About Research Biological Systems Science Division (BSSD) Genomic Science DOE Bioenergy Research Centers Bioimaging Technology DOE Joint Genome Institute Structural Biology Radiochemistry & Imaging Instrumentation Radiobiology: Low Dose Radiation Research DOE Human Subjects Protection Program Climate and Environmental Sciences Division (CESD) Research Abstracts Searchable Archive of BER Highlights External link Facilities

  9. NEUTRONIC REACTORS

    DOE Patents [OSTI]

    Anderson, H.L.

    1958-10-01

    The design of control rods for nuclear reactors are described. In this design the control rod consists essentially of an elongated member constructed in part of a neutron absorbing material and having tube means extending therethrough for conducting a liquid to cool the rod when in use.

  10. Help Center

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

    Los Alamos National Laboratory Advanced Simulation and Computing Menu Events Partnerships Help Center Events Partnerships Help Center Videos Advanced Simulation and Computing Program » Help Center Computing Help Center Help hotlines, hours of operation, training, technical assistance, general information Los Alamos National Laboratory Hours: Monday through Friday, 8:00 a.m. - noon, 1:00-5:00 p.m. Mountain time Telephone: (505) 665-4444 option 3 Fax: (505) 665-6333 E-mail: consult@lanl.gov 24

  11. operations center

    National Nuclear Security Administration (NNSA)

    servers and other critical Operations Center equipment

  12. Independent air supply system filtered to protect against biological and radiological agents (99.7%).
  13. <...

  14. Alternative Neutron Detection Testing Summary

    SciTech Connect (OSTI)

    Kouzes, Richard T.; Ely, James H.; Erikson, Luke E.; Kernan, Warnick J.; Lintereur, Azaree T.; Siciliano, Edward R.; Stromswold, David C.; Woodring, Mitchell L.

    2010-04-08

    Radiation portal monitors used for interdiction of illicit materials at borders include highly sensitive neutron detection systems. The main reason for having neutron detection capability is to detect fission neutrons from plutonium. Most currently deployed radiation portal monitors (RPMs) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large area neutron detector. This type of neutron detector is used in the TSA and other RPMs installed in international locations and in the Ludlum and Science Applications International Corporation RPMs deployed primarily for domestic applications. There is a declining supply of 3He in the world and, thus, methods to reduce the use of this gas in RPMs with minimal changes to the current system designs and sensitivity to cargo-borne neutrons are being investigated. Four technologies have been identified as being currently commercially available, potential alternative neutron detectors to replace the use of 3He in RPMs. These technologies are: 1) Boron trifluoride-filled proportional counters, 2) Boron-lined proportional counters, 3) Lithium-loaded glass fibers, and 4) Coated wavelength-shifting plastic fibers. Reported here is a summary of the testing carried out at Pacific Northwest National Laboratory on these technologies to date, as well as measurements on 3He tubes at various pressures. Details on these measurements are available in the referenced reports. Sponsors of these tests include the Department of Energy (DOE), Department of Homeland Security (DHS), and the Department of Defense (DoD), as well as internal Pacific Northwest National Laboratory funds.

  15. Methods for absorbing neutrons

    DOE Patents [OSTI]

    Guillen, Donna P.; Longhurst, Glen R.; Porter, Douglas L.; Parry, James R.

    2012-07-24

    A conduction cooled neutron absorber may include a metal matrix composite that comprises a metal having a thermal neutron cross-section of at least about 50 barns and a metal having a thermal conductivity of at least about 1 W/cmK. Apparatus for providing a neutron flux having a high fast-to-thermal neutron ratio may include a source of neutrons that produces fast neutrons and thermal neutrons. A neutron absorber positioned adjacent the neutron source absorbs at least some of the thermal neutrons so that a region adjacent the neutron absorber has a fast-to-thermal neutron ratio of at least about 15. A coolant in thermal contact with the neutron absorber removes heat from the neutron absorber.

  16. Chemical Science

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

    Chemical Science science-innovationassetsimagesicon-science.jpg Chemical Science National security depends on science and technology. The United States relies on Los Alamos ...

  17. Materials Science

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

    Materials Science science-innovationassetsimagesicon-science.jpg Materials Science National security depends on science and technology. The United States relies on Los Alamos ...

  18. Neutron reflecting supermirror structure

    DOE Patents [OSTI]

    Wood, James L. (Drayton Plains, MI)

    1992-01-01

    An improved neutron reflecting supermirror structure comprising a plurality of stacked sets of bilayers of neutron reflecting materials. The improved neutron reflecting supermirror structure is adapted to provide extremely good performance at high incidence angles, i.e. up to four time the critical angle of standard neutron mirror structures. The reflection of neutrons striking the supermirror structure at a high critical angle provides enhanced neutron throughput, and hence more efficient and economical use of neutron sources.

  19. Neutron reflecting supermirror structure

    DOE Patents [OSTI]

    Wood, J.L.

    1992-12-01

    An improved neutron reflecting supermirror structure comprising a plurality of stacked sets of bilayers of neutron reflecting materials. The improved neutron reflecting supermirror structure is adapted to provide extremely good performance at high incidence angles, i.e. up to four time the critical angle of standard neutron mirror structures. The reflection of neutrons striking the supermirror structure at a high critical angle provides enhanced neutron throughput, and hence more efficient and economical use of neutron sources. 2 figs.

  20. PRODUCTION AND APPLICATIONS OF NEUTRONS USING PARTICLE ACCELERATORS

    SciTech Connect (OSTI)

    David L. Chichester

    2009-11-01

    Advances in neutron science have gone hand in hand with the development and of particle accelerators from the beginning of both fields of study. Early accelerator systems were developed simply to produce neutrons, allowing scientists to study their properties and how neutrons interact in matter, but people quickly realized that more tangible uses existed too. Today the diversity of applications for industrial accelerator-based neutron sources is high and so to is the actual number of instruments in daily use is high, and they serve important roles in the fields where they're used. This chapter presents a technical introduction to the different ways particle accelerators are used to produce neutrons, an historical overview of the early development of neutron-producing particle accelerators, a description of some current industrial accelerator systems, narratives of the fields where neutron-producing particle accelerators are used today, and comments on future trends in the industrial uses of neutron producing particle accelerators.

  21. Cryogenic Neutron Protein Crystallography: routine methods and potential benefits

    SciTech Connect (OSTI)

    Weiss, Kevin L; Tomanicek, Stephen J; NG, Joseph D

    2014-01-01

    The use of cryocooling in neutron diffraction has been hampered by several technical challenges such as the need for specialized equipment and techniques. Recently we have developed and deployed equipment and strategies that allow for routine neutron data collection on cryocooled crystals using off the shelf components. This system has several advantages, compared to a closed displex cooling system such as fast cooling coupled with easier crystal mounting and centering. The ability to routinely collect cryogenic neutron data for analysis will significantly broaden the range of scientific questions that can be examined by neutron protein crystallography. Cryogenic neutron data collection for macromolecules has recently become available at the new Biological Diffractometer BIODIFF at FRM II and the Macromolecular Diffractometer (MaNDi) at the Spallation Neutron Source, Oak Ridge National Laboratory. To evaluate the benefits of a cryocooled neutron structure we collected a full neutron data set on the BIODIFF instrument on a Toho-1 lactamase structure at 100K.

  22. Energy Frontier Research Centers | Argonne National Laboratory

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

    The above figure depicts an ALD-Modified "Rust" Surface for enhanced electrode activity. Energy Frontier Research Centers Argonne pulls together science and engineering leaders across institutional boundaries, allowing them to take a collaborative approach to specific scientific challenges. In 2009, the U.S. Department of Energy's Office of Science/Office of Basic Energy Sciences established the Energy Frontier Research Centers (EFRCs). These EFRCs are composed of small teams of

  1. NEUTRONIC REACTORS

    DOE Patents [OSTI]

    Vernon, H.C.

    1959-01-13

    A neutronic reactor of the heterogeneous, fluid cooled tvpe is described. The reactor is comprised of a pressure vessel containing the moderator and a plurality of vertically disposed channels extending in spaced relationship through the moderator. Fissionable fuel material is placed within the channels in spaced relationship thereto to permit circulation of the coolant fluid. Separate means are provided for cooling the moderator and for circulating a fluid coolant thru the channel elements to cool the fuel material.

  2. FIRST Center Research Perspective_Mamontov_QENS

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

    gradual development of the separate localized relaxation in liquids on cooling down makes one- component QENS data fitting inadequate, as manifested by the difference plot (data minus fit) deviation from zero level. Measurements performed at the neutron backscattering spectrometer BASIS of the Spallation Neutron Source, ORNL, suggest that the extent of the separation between the main and secondary relaxations scales with temperature as (T b /T), where T b is boiling temperature. FIRST Center

  3. CRC handbook of fast neutron generators

    SciTech Connect (OSTI)

    Csikai, G.J.

    1987-01-01

    This handbook reviews those problems and methods of science and technology where the neutrons produced in the /sup 3/H/d, n//sup 4/He and /sup 2/H/d, N//sup 3/He reactions play the main role. It also discusses possible applications of these small generators as thermal neutron sources, addresses the small accelerators as charged particle and X-ray sources, enables suitable topics to be selected for education and training and provides a wide range of experiments with the detection of neutrons and charged particles, including the study of shielding and the generator technology itself.

  4. BF3 Neutron Detector Tests

    SciTech Connect (OSTI)

    Kouzes, Richard T.; Ely, James H.; Lintereur, Azaree T.; Siciliano, Edward R.; Woodring, Mitchell L.

    2009-12-09

    Radiation portal monitors used for interdiction of illicit materials at borders include highly sensitive neutron detection systems. The main reason for having neutron detection capability is to detect fission neutrons from plutonium. The currently deployed radiation portal monitors (RPMs) from Ludlum and Science Applications International Corporation (SAIC) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large neutron detector. There is a declining supply of 3He in the world; thus, methods to reduce the use of this gas in RPMs with minimal changes to the current system designs and detection capabilities are being investigated. Reported here are the results of tests of the efficiency of BF3 tubes at a pressure of 800 torr. These measurements were made partially to validate models of the RPM system that have been modified to simulate the performance of BF3-filled tubes. While BF3 could be a potential replacement for 3He, there are limitations to its use in deployed systems.

  5. Craig Brown | Center for Gas SeparationsRelevant to Clean Energy...

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

    Craig Brown Previous Next List CraigBrown Craig Brown Team leader for crystallography and diffraction applications, Center for Neutron Research, National Institute of Standards and...

  6. Energy Frontier Research Center Center for Materials Science...

    Office of Scientific and Technical Information (OSTI)

    finite temperatures approaches will be required for handling this strongly correlated nuclear fuel. * PDOS measurements performed on polycrystalline samples have identified the...

  7. Microsoft Word - Defense Science Quarterly 03-09.doc

    National Nuclear Security Administration (NNSA)

    March 2009 Defense Science Quarterly Inside This Issue 1 Message from the Director 2 Carnegie-DOE Alliance Center 3 Cornell Center for the Study of Pulsed Power Driven High Energy Density Plasmas 4 Center of Excellence for Radioactive Ion Beam Studies for Stewardship Science 5 The Texas Center for High Intensity Laser Science 6 The Institute for Shock Physics, Washington State University 7 The High Pressure Science and Engineering Center at the University of Nevada, Las Vegas 8 HEDP Research at

  8. Diagnostic of fusion neutrons on JET tokamak using diamond detector

    SciTech Connect (OSTI)

    Nemtsev, G.; Amosov, V.; Marchenko, N.; Meshchaninov, S.; Rodionov, R.; Popovichev, S.; Collaboration: JET EFDA Conbributors

    2014-08-21

    In 2011-2012, an experimental campaign with a significant yield of fusion neutrons was carried out on the JET tokamak. During this campaign the facility was equipped with two diamond detectors based on natural and artificial CVD diamond. These detectors were designed and manufactured in State Research Center of Russian Federation TRINITI. The detectors measure the flux of fast neutrons with energies above 0.2 MeV. They have been installed in the torus hall and the distance from the center of plasma was about 3 m. For some of the JET pulses in this experiment, the neutron flux density corresponded to the operational conditions in collimator channels of ITER Vertical Neutron Camera. The main objective of diamond monitors was the measurement of total fast neutron flux at the detector location and the estimation of the JET total neutron yield. The detectors operate as threshold counters. Additionally a spectrometric measurement channel has been configured that allowed us to distinguish various energy components of the neutron spectrum. In this paper we describe the neutron signal measuring and calibration procedure of the diamond detector. Fluxes of DD and DT neutrons at the detector location were measured. It is shown that the signals of total neutron yield measured by the diamond detector correlate with signals measured by the main JET neutron diagnostic based on fission chambers with high accuracy. This experiment can be considered as a successful test of diamond detectors in ITER-like conditions.

  9. 2010 Neutron Review: ORNL Neutron Sciences Progress Report (Technical...

    Office of Scientific and Technical Information (OSTI)

    ... - One possibility for slowing down the increasing levels of carbon dioxide (COsub 2) in the atmosphere is to capture the gas in natural underground features such as coal seams. ...

  10. 2010 Neutron Review: ORNL Neutron Sciences Progress Report (Technical...

    Office of Scientific and Technical Information (OSTI)

    As the instrument, sample environment, and data analysis ... Some topics discussed are: (1) HFIR and SNS Experiments Take ... During the design and planning for SNS, many people were ...

  11. Science and Technology at Oak Ridge National Laboratory

    ScienceCinema (OSTI)

    Mason, Thomas

    2013-02-25

    ORNL Director Thom Mason explains the groundbreaking work in neutron sciences, supercomputing, clean energy, advanced materials, nuclear research, and global security taking place at the Department of Energy's Office of Science laboratory in Oak Ridge, Tenn.

  12. Science and Technology at Oak Ridge National Laboratory

    SciTech Connect (OSTI)

    Mason, Thomas

    2012-11-01

    ORNL Director Thom Mason explains the groundbreaking work in neutron sciences, supercomputing, clean energy, advanced materials, nuclear research, and global security taking place at the Department of Energy's Office of Science laboratory in Oak Ridge, Tenn.

  13. 2013 National Nuclear Science Week Education Days

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

    National Nuclear Science Week Education Days Monday, October 21 - Friday, October 25, 2013 Ruth Patrick Science Education Center (RPSEC) - USC Aiken, SC Programs: Journey to the Center of the Atom ∎ Chemical Matters ∎ Probing the Periodic Table Teachers can make arrangements for class participation through http://rpsec.usca.edu Tuesday, October 22, 2013 Ruth Patrick Science Education Center (RPSEC) - USC Aiken, SC Webinar: Journey to the Center of the Atom (11:30 am) Register

  14. Medical Sciences Division Oak Ridge Institute for Science and Education report for 1992

    SciTech Connect (OSTI)

    Not Available

    1992-12-31

    Research programs from the medical science division of the Oak Ridge Institute for Science and Education (ORISE) are briefly described in the following areas: Biochemistry, cytogenetics, microbiology, center for epidemiologic research, radiation medicine, radiation internal dose information center, center for human reliability studies, facility safety, occupational medicine, and radiation emergency assistance center/training site.

  15. DOE Joint Genome Institute: A DOE Office of Science User Facility...

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

    Institute About Us Phone Book Contact Us Search Our Science Our DOE Mission Areas DOE Bioenergy Research Centers Science Programs Science Highlights Scientists at JGI Our Projects...

  16. Center for Next Generation of Materials by Design: Incorporating

    Office of Science (SC) Website

    Metastability (CNGMD) | U.S. DOE Office of Science (SC) Center for Next Generation of Materials by Design: Incorporating Metastability (CNGMD) Energy Frontier Research Centers (EFRCs) EFRCs Home Centers EFRC External Websites Research Science Highlights News & Events Publications History Contact BES Home Centers Center for Next Generation of Materials by Design: Incorporating Metastability (CNGMD) Print Text Size: A A A FeedbackShare Page CNGMD Header Director William Tumas Lead

  17. Sandia National Laboratories: Research: Materials Science: Facilities

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

    Facilities Bioscience Computing and Information Science Electromagnetics Engineering Science Geoscience Materials Science About Materials Science Research Image Gallery Video Gallery Facilities Nanodevices and Microsystems Radiation Effects and High Energy Density Science Research Facilities Center for Integrated Nanotechnologies (CINT) CINT Ion Beam Laboratory Ion Beam Laboratory MESA High Performance Computing Processing and Environmental Technology Laboratory Processing and Environmental

  18. Information Sciences and Technology

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

    Information Sciences and Technology Information Sciences and Technology National security depends on science and technology. The United States relies on Los Alamos National Laboratory for the best of both. No place on Earth pursues a broader array of world-class scientific endeavors. Contact thumbnail of Business Development Executive Steve Stringer Business Development Executive Richard P. Feynman Center for Innovation (505) 660-2177 Email Los Alamos leverages advances in theory, algorithms,

  19. 6.21 Improving Neutron Beams for Cancer Treatment

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

    1 6/1/2011 6.21 Improving Neutron Beams for Cancer Treatment Beams of neutrons long have been used in scientific experiments, but recently, for the first time, a novel type of neutron beam was generated for use in a medical reactor. The innovation by Otto K. Harling of Massachusetts Institute of Technology involved the adaptation of existing nuclear fission converter technology. The Office of Science supported the detailed scientific and engineering design needed to put the concept to practical

  20. NEUTRON SOURCE

    DOE Patents [OSTI]

    Reardon, W.A.; Lennox, D.H.; Nobles, R.G.

    1959-01-13

    A neutron source of the antimony--beryllium type is presented. The source is comprised of a solid mass of beryllium having a cylindrical recess extending therein and a cylinder containing antimony-124 slidably disposed within the cylindrical recess. The antimony cylinder is encased in aluminum. A berylliunn plug is removably inserted in the open end of the cylindrical recess to completely enclose the antimony cylinder in bsryllium. The plug and antimony cylinder are each provided with a stud on their upper ends to facilitate handling remotely.

  1. NEUTRON COUNTER

    DOE Patents [OSTI]

    Curtis, C.D.; Carlson, R.L.; Tubinis, M.P.

    1958-07-29

    An ionization chamber instrument is described for cylindrical electrodes with an ionizing gag filling the channber. The inner electrode is held in place by a hermetic insulating seal at one end of the outer electrode, the other end of the outer electrode being closed by a gas filling tube. The outer surface of the inner electrode is coated with an active material which is responsive to neutron bombardment, such as uranium235 or boron-10, to produce ionizing radiations in the gas. The transverse cross sectional area of the inner electrode is small in relation to that of the channber whereby substantially all of the radiations are directed toward the outer electrode.

  2. Boron-Lined Neutron Detector Measurements

    SciTech Connect (OSTI)

    Lintereur, Azaree T.; Kouzes, Richard T.; Ely, James H.; Erikson, Luke E.; Siciliano, Edward R.; Woodring, Mitchell L.

    2010-03-07

    PNNL-18938 Revision Radiation portal monitors used for interdiction of illicit materials at borders include highly sensitive neutron detection systems. The main reason for having neutron detection capability is to detect fission neutrons from plutonium. The currently deployed radiation portal monitors (RPMs) from Ludlum and Science Applications International Corporation (SAIC) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large neutron detector. There is a declining supply of 3He in the world, and thus, methods to reduce the use of this gas in RPMs with minimal changes to the current system designs and sensitivity to cargo-borne neutrons are being investigated. Four technologies have been identified as being currently commercially available, potential alternative neutron detectors to replace the use of 3He in RPMs. Reported here are the results of tests of a newly designed boron-lined proportional counter option. This testing measured the neutron detection efficiency and gamma ray rejection capabilities of two successive prototypes of a system manufactured by GE Reuter Stokes.

  3. Full Scale Coated Fiber Neutron Detector Measurements

    SciTech Connect (OSTI)

    Kouzes, Richard T.; Ely, James H.; Erikson, Luke E.; Kernan, Warnick J.; Stromswold, David C.; Woodring, Mitchell L.

    2010-03-17

    Radiation portal monitors used for interdiction of illicit materials at borders include highly sensitive neutron detection systems. The main reason for having neutron detection capability is to detect fission neutrons from plutonium. The currently deployed radiation portal monitors (RPMs) from Ludlum and Science Applications International Corporation (SAIC) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large neutron detector. There is a declining supply of 3He in the world, and thus, methods to reduce the use of this gas in RPMs with minimal changes to the current system designs and sensitivity to cargo-borne neutrons are being investigated. Four technologies have been identified as being currently commercially available, potential alternative neutron detectors to replace the use of 3He in RPMs. These technologies are: 1) Boron trifluoride (BF3)-filled proportional counters, 2) Boron-lined proportional counters, 3) Lithium-loaded glass fibers, and 4) Coated non-scintillating plastic fibers. Reported here are the results of tests of the full-scale 6Li/ZnS(Ag)-coated non-scintillating plastic fibers option. This testing measured the required performance for neutron detection efficiency and gamma ray rejection capabilities of a system manufactured by Innovative American Technology (IAT) and Saint Gobain, and is a follow-up report to an earlier one on a smaller prototype system.

  4. Boron-Lined Neutron Detector Measurements

    SciTech Connect (OSTI)

    Lintereur, Azaree T.; Kouzes, Richard T.; Ely, James H.; Erikson, Luke E.; Siciliano, Edward R.

    2009-11-02

    Radiation portal monitors used for interdiction of illicit materials at borders include highly sensitive neutron detection systems. The main reason for having neutron detection capability is to detect fission neutrons from plutonium. The currently deployed radiation portal monitors (RPMs) from Ludlum and Science Applications International Corporation (SAIC) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large neutron detector. There is a declining supply of 3He in the world, and thus, methods to reduce the use of this gas in RPMs with minimal changes to the current system designs and sensitivity to cargo-borne neutrons are being investigated. Four technologies have been identified as being currently commercially available, potential alternative neutron detectors to replace the use of 3He in RPMs. Reported here are the results of tests of a newly designed boron-lined proportional counter option. This testing measured the neutron detection efficiency and gamma ray rejection capabilities of a system manufactured by Reuter Stokes.

  5. Lithium Loaded Glass Fiber Neutron Detector Tests

    SciTech Connect (OSTI)

    Ely, James H.; Erikson, Luke E.; Kouzes, Richard T.; Lintereur, Azaree T.; Stromswold, David C.

    2009-11-12

    Radiation portal monitors used for interdiction of illicit materials at borders include highly sensitive neutron detection systems. The main reason for having neutron detection capability is to detect fission neutrons from plutonium. The currently deployed radiation portal monitors (RPMs) from Ludlum and Science Applications International Corporation (SAIC) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large neutron detector. There is a declining supply of 3He in the world and, thus, methods to reduce the use of this gas in RPMs with minimal changes to the current system designs and sensitivity to cargo-borne neutrons are being investigated. Four technologies have been identified as being currently commercially available, potential alternative neutron detectors to replace the use of 3He in RPMs. Reported here are the results of tests of the lithium-loaded glass fibers option. This testing measured the neutron detection efficiency and gamma ray rejection capabilities of a small system manufactured by Nucsafe (Oak Ridge, TN).

  6. Kirsch Center for Environmental Studies

    High Performance Buildings Database

    Cupertino, CA The Kirsch Center for Environmental Studies is a two story building completed in summer 2005. The center is the home of the Biological, Health and Environmental Sciences Division of the De Anza College. On the first floor there is a biodiversity lab, a biodiversity outdoor classroom, an energy exhibit hall, a small group learning space, a 90-seat lecture classroom and two 45-seat lecture classrooms.

  7. ORISE: Center for Epidemiologic Research

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

    Center for Epidemiologic Research The Oak Ridge Institute for Science and Education (ORISE) has been building its capability in epidemiology since 1978. Early ORISE studies of mortality among U.S. Department of Energy (DOE) nuclear workers led researchers to develop increasing expertise in epidemiologic research, occupational health studies and DOE worker populations. ORISE's researchers and skills coalesced into an operating unit that became the Center for Epidemiologic Research (CER). CER has

  8. Chemical Sciences

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

    Chemical Sciences - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us ... ARPA-E Basic Energy Sciences Materials Sciences and Engineering Chemical Sciences ...

  9. PNNL: Center for Molecular Electrocatalysis - Energy Frontier Research

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

    Center - Related Links Related Links Center for Molecular Electrocatalysis Members Pacific Northwest National Laboratory University of Illinois Yale University U.S. Department of Energy U.S. Department of Energy Office of Science Basic Energy Sciences Energy Frontier Research Centers

  10. Web Resources | Photosynthetic Antenna Research Center

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

    Web Resources Web Resources Useful Links * American Society of Plant Biologists * Arizona State University Center for Bioenergy & Photosynthesis * Enterprise Rent-A-Car Institute for Renewable Fuels * Center for Bio-Inspired Solar Fuel Production * Energy Frontier Research Centers * e-photosynthesis.org * International Center for Advanced Renewable Energy and Sustainability (I-CARES) * KIPP: Inspire Academy * Molecular Foundry * Office of Sustainability * Science Cinema * Institute for

  11. Contact | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Contact Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research Science ... The scientific directions of the EFRCs are overseen by program staff in the Basic Energy ...

  12. Neutron resonance spectroscopy of {sup 106}Pd and {sup 108}Pd from 20 to 2000 eV

    SciTech Connect (OSTI)

    Crawford, B.E.; Roberson, N.R. [Duke University, Durham, North Carolina 27708 and Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708-0308 (United States)] [Duke University, Durham, North Carolina 27708 and Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708-0308 (United States); Bowman, J.D.; Knudson, J.N.; Penttilae, S.I.; Seestrom, S.J.; Yuan, V.W. [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)] [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States); Delheij, P.P. [TRIUMF, Vancouver, British Columbia, V6T 2A3 (CANADA)] [TRIUMF, Vancouver, British Columbia, V6T 2A3 (CANADA); Haseyama, T.; Masaike, A.; Matsuda, Y. [Physics Department, Kyoto University, Kyoto 606-01 (Japan)] [Physics Department, Kyoto University, Kyoto 606-01 (Japan); Lowie, L.Y.; Mitchell, G.E.; Stephenson, S.L. [North Carolina State University, Raleigh, North Carolina 27695-8202 and Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708-0308 (United States)] [North Carolina State University, Raleigh, North Carolina 27695-8202 and Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708-0308 (United States); Postma, H. [University of Technology, Delft, 2600 GA (The Netherlands)] [University of Technology, Delft, 2600 GA (The Netherlands); Sharapov, E.I. [Joint Institute for Nuclear Research, 141980 Dubna (Russia)] [Joint Institute for Nuclear Research, 141980 Dubna (Russia)

    1998-08-01

    Parity nonconserving asymmetries have been measured in p-wave resonances of {sup 106}Pd and {sup 108}Pd. The data analysis requires knowledge of the neutron resonance parameters. Transmission and capture {gamma}-ray yields were measured for E{sub n}=20{endash}2000 eV with the time-of-flight method at the Los Alamos Neutron Science Center (LANSCE). A total of 28 resonances in {sup 106}Pd and 32 resonances in {sup 108}Pd were studied. The resonance parameters for {sup 106}Pd are new for all except one resonance. In {sup 108}Pd six new resonances were observed and the precision improved for many of the resonance parameters. A Bayesian analysis was used to assign orbital angular momentum for the resonances studied. {copyright} {ital 1998} {ital The American Physical Society}

  13. Center for Nanophase Materials Sciences (CNMS) - Publications

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

    Alkemade, P.F.A.; Miro, H.; van Veldhoven, E.; Maas, D. J.; Smith, D. A.; Rack, P. D., ... Jo, J. Y.; Chen, P.; Sichel, R. J.; Baek, S. H.; Smith, R. T.; Balke, N.; Kalinin, S. V.; ...

  14. Center for Nanophase Materials Sciences - Newsletter

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

    its start, it is clear to me the obvious advantages of becoming an active user, and I hope that you will too. The success of CNMS is strongly dependent on the cutting-edge...

  15. Center for Nanophase Materials Sciences - Conference 2015

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

    spectroscopy for chemical analysis Organizers: Sergey Shilov and James Burgess (Bruker Optics) Local Contact: Brad Lokitz, ORNL Event overview: Join us to learn about Infrared and...

  16. Center for Nanophase Materials Sciences - Newsletter

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

    Oak Ridge National Laboratory in Oak Ridge, Tennessee. The annual user meeting combines oral presentations, poster sessions, workshops and tutorials into a compact program designed...

  17. Center for Nanophase Materials Sciences (CNMS) - Publications

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

    ... Res. 47, 6426-6433 (2008). Jang, H. W., S. H. Baek, D. Ortiz, C. M. Folkman, R. R. Das, Y. H. Chu, P. Shafer, J. X. Zhang, S. Choudhury, V. Vaithyanathan, Y. B. Chen, D. A. Felker, ...

  18. Center for Nanophase Materials Sciences (CNMS) - Publications

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

    may be required to access online publications. L. R. Baylor, W. L. Gardner, X. Yang, R. J. Kasica, M. A. Guillorn, B. Blalock, H. Cui, D. K. Hensley, S. Islam, D. H....

  19. Center for Nanophase Materials Sciences (CNMS) - Publications

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

    in Good Solvent," Soft Matter 5 (9), 1897-1904 (2009). Arenholz, E.; van der Laan, G.; Yang, F.; Kemik, N.; Biegalski, M. D.; Christen, H. M.; Takamura, Y, "Magnetic Structure of...

  20. Center for Nanophase Materials Sciences - Newsletter

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

    meet various research needs. The chemical or physical exfoliation of graphite is a straightforward method to produce graphene with least synthesis effort, since it takes advantage...

  1. Center for Nanophase Materials Sciences (CNMS) - Macromolecular...

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

    Polymerization: Extensive expertise in free radical and controlled radical (ATRP, NMP, RAFT) polymerizations. Ring Opening Polymerization: Expertise in the controlled ring-opening...

  2. Center for Nanophase Materials Sciences (CNMS) - Publications

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

    "Technique to automatically measure electron beam diameter and astigmatism," J. Vac. Sci. Tech. B 24, 2956-2959 (2006). Choi, Y. R., P. D. Rack, S. J. Randolph, D. A. Smith, and D....

  3. Center for Nanophase Materials Sciences - Newsletter January...

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

    were recently purchased with American Recovery and Reinvestment Act funds, including new SEM and TEMSTEM capabilities for soft materials, small-angle x-ray scattering, and in the...

  4. Center for Nanophase Materials Sciences (CNMS) - Policies

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

    officio seat on the SAC. Proposal Review Committees (PRCs) Evaluation of General User (GU) proposals will be carried out by appropriately constituted Proposal Review Committees....

  5. Sandia Energy Earth Sciences Research Center

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

    Participate in 46th Annual American Geophysical Union (AGU) Conference http:energy.sandia.govsandians-participate-in-46th-annual-american-geophysical-union-agu-conference...

  6. Center for Nanophase Materials Sciences - Newsletter

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

    anions where capable of inducing cage formation. In a current user project (for Ken Jacobson, NIH), we are preparing polyamido(amine) (PAMAM) dendrimers for investigation as...

  7. Center for Nanophase Materials Sciences - Conference 2015

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

    highly promising approach to expedite the materials discovery process using theory-guided electronic and structural engineering. This roundtable will bring together materials...

  8. Center for Nanophase Materials Sciences (CNMS) - Publications

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

    ... Zutic, "Semiconductor Spintronics," Acta Physica Slovaca, 57, 565-907 (342 pages) (2007). ... Zutic, I., J. Fabian, and S. C. Erwin, "Bipolar Spintronics: from Spin injection to ...

  9. Center for Nanophase Materials Sciences (CNMS) - News

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

    ... "ORNL materials researchers get first look at atom-thin boundaries," Space Daily (November 11, 2014) "UT, ORNL Team Up in Possible Spintronics Advancement," Tennessee Today ...

  10. Center for Nanophase Materials Sciences Strategic Plan

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

    ... overall theme of understanding and controlling the complexity of electronic, ionic, and molecular behavior at the nanoscale to enable the design of new functional nanomaterials. ...

  11. Center for Nanophase Materials Sciences - Conference 2015

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

    September 1-2, 2015. Instructions for preparing posters: Tabletop poster boards and adhesive Velcro tabs will be provided for mounting posters. You may bring your poster to the...

  12. The Center for Nanophase Materials Sciences

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

    relationship between the probability of negative entropy producing states (i.e., violations of the second law of thermodynamics), the probability of positive entropy...

  13. Center for Nanophase Materials Sciences - Newsletter

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

    alcohol-free facility. The Guest House is a 3 floor, 47 room, 71 bed inn (23 rooms with King beds and 24 rooms with 2 ex-long double beds). All rooms have a mini fridge and...

  14. Center for Nanophase Materials Sciences - Newsletter January...

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

    The results of the user survey we conducted are presented in this issue. The UEC elections have just concluded, and our users community has elected a new committee to serve...

  15. Center for Nanophase Materials Sciences (CNMS) - Themes

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

    is home to our synthetic macromolecular capabilities and our complementary efforts in designing functional materials, including those with hybrid molecular architectures, for...

  16. Center for Nanophase Materials Sciences (CNMS) - Publications

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

    M.; Decker, S. .R; Bu, L. T.; Zhao, X. C.; McCabe, C.; Wohlert, J.; Bergenstrahle, M.; Brady, J. W.; Adney, W. S.; Himmel, M. E.; Crowley, M. F., ":The O-Glycosylated Linker from...

  17. Center for Nanophase Materials Sciences - Newsletter January...

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

    in a cryo-ultra-microtome, to be transferred into the microscope while being held at liquid nitrogen temperatures. Plans are being made for a two day workshop on operating and...

  18. Computing and Computational Sciences Directorate - National Center...

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

    peers due to its hybrid architecture-a combination of GPUs, traditionally used in video games, and the more conventional central processing units (CPUs) that have served as number...

  19. Center for Nanophase Materials Sciences (CNMS) - Microsocpy,...

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

    chemical composition in sample environment. 4-circle X-ray diffraction 4-circle plus translation stage, high temperature, in-plane thin film diffraction. Also texture,...

  20. Center for Nanophase Materials Sciences (CNMS) - Publications

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

    W. Lu, J. Bernholc, and B. Sumpter, "Electron Transport in Molecular Electronics Systems," J. Phys. Conf. Series 16, 283 (2005). V. V. Osipov, A. G. Petukhov, and V. N....

  1. Center for Nanophase Materials Sciences (CNMS) - Highlights

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

    that limit the optimal electronic and optoelectronic properties of semiconductors. "Alloy Engineering of Defect Properties in Semiconductors: Suppression of Deep Levels in...

  2. Center for Nanophase Materials Sciences - Newsletter

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

    Summer Newsletter 2010 Welcome Sean Smith CNMS Division Director Editor's Note: On August 1, the CNMS was pleased to welcome its new director, Sean Smith, who joined us from the...

  3. Center for Nanophase Materials Sciences - Newsletter

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

    solids, and thin films. Non-ambient options include controlled temperature and humidity cells, flow cells, and grazing-incidence SAXS for in-plane characterization of thin...

  4. Center for Nanophase Materials Sciences (CNMS)

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

    Newsletters People Contact Us Upcoming Events and Latest News Call For Proposals - Next Cycle Spring 2016 CNMS User Meeting - August 10-12, 2016 Career Opportunities Recent News:...

  5. Center for Nanophase Materials Sciences (CNMS) - Nanomaterials...

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

    of magnetic nanosystems. Additionally, support of classical atomistic and coarse-grained molecular dynamics methods as well as self-consistent field theoretic approaches are also...

  6. Center for Nanophase Materials Sciences (CNMS) - Microsocpy,...

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

    gas environmental cell holder for conducting in-situ gas reactions at pressures to 1 atm. and temperatures up to 1000C. This new holder complements other specializedin-situ...

  7. Center for Nanophase Materials Sciences (CNMS)

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

    "Controllable Complex Oxide Heterointerface" - Zhiqun Lin, Georgia Institute of Technology "Crafting Functional Nanocrystals by Capitalizing on Nonlinear Block Copolymers...

  8. Center for Nanophase Materials Sciences (CNMS) - Nanofabrication...

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

    clean room space for carrying out material modification using advanced lithographic, etching, thin-film deposition, and characterization tools. Process Design Assistance with...

  9. Center for Nanophase Materials Sciences (CNMS) - Publications

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

    N.; Kalinin, S. V.; Rodriguez, B. J., "Probing Charge Screening Dynamics and Electrochemical Processes at the Solid-Liquid Interface with Electrochemical Force Microscopy,"...

  10. Center for Renewable Energy Science and Technology

    SciTech Connect (OSTI)

    Billo, Richard; Rajeshwar, Krishnan

    2013-01-15

    The CREST research team conducted research that optimized catalysts used for the conversion of southwestern lignite into synthetic crude oil that can be shipped to nearby Texas refineries and power plants for development of transportation fuels and power generation. Research was also undertaken to convert any potential by-products of this process such as CO2 to useful chemicals and gases which could be recycled and used as feedstock to the synthetic fuel process. These CO2 conversion processes used light energy to drive the endogonic reduction reactions involved. The project was divided into two tasks: A CO2 Conversion Task, and a Catalyst Optimization Task. The CO2 Conversion task was aimed at developing molecular and solid state catalysts for the thermal, electro- and photocatalytic reduction of CO2 to reduced products such as simple feedstock compounds (e.g. CO, H2, CHOOH, CH2O, CH3OH and CH4). For example, the research team recycled CO that was developed from this Task and used it as a feedstock for the production of synthetic crude in the Catalyst Optimization Task. In the Catalyst Optimization Task, the research team conducted bench-scale experiments with the goal of reducing overall catalyst cost in support of several synthetic crude processes that had earlier been developed. This was accomplished by increasing the catalyst reactivity thus reducing required concentrations or by using less expensive metals. In this task the team performed parametric experiments in small scale batch reactors in an effort to improve catalyst reactivity and to lower cost. They also investigated catalyst robustness by testing lignite feedstocks that vary in moisture, h, and volatile content.

  11. Center for Nanophase Materials Sciences - Newsletter

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

    can provide insights for the development of new materials for solar cells, solid-state lighting and superconductor power transmission. Computer codes will be made...

  12. Center for Nanophase Materials Sciences (CNMS) - Nanomaterials...

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

    THEORY INSTITUTE (NTI): THEORY, MODELING & SIMULATION CAPABILITIES NTI Computational Cluster The NTI maintains a 12 teraflop Beowulf cluster in support of the capacity-level...

  13. Center for Nanophase Materials Sciences (CNMS) - Publications

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

    ... Reaction with Tin Anodes: Experiment and Theory," ... for High Avidity Microbial Capture," ... Layers of Proton Exchange Membrane Fuel Cells," J. Phys. Chem. ...

  14. Center for Nanophase Materials Sciences (CNMS) - Publications

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

    Brankovic, S. R.; Strasser, P.; Mavrikakis, M., "Bifunctional Anode Catalysts for Direct Methanol Fuel Cells," Energy Environ. Sci. 5, 8335-8342 (2012). Ryckman, J. D.;...

  15. Breakthrough: Neutron Science for the Fusion Mission

    ScienceCinema (OSTI)

    McGreevy, Robert

    2014-06-03

    How Oak Ridge National Laboratory is helping to solve the world's energy problems through fusion energy research.

  16. Breakthrough: Neutron Science for the Fusion Mission

    SciTech Connect (OSTI)

    McGreevy, Robert

    2012-04-24

    How Oak Ridge National Laboratory is helping to solve the world's energy problems through fusion energy research.

  17. Neutron reflecting supermirror structure

    DOE Patents [OSTI]

    Wood, James L. (Drayton Plains, MI)

    1992-01-01

    An improved neutron reflecting supermirror structure comprising a plurality of stacked sets of bilayers of neutron reflecting materials. The improved neutron reflecting supermirror structure is adapted to provide extremely good performance at high incidence angles, i.e. up to four time the critical angle of standard neutron mirror structures. The reflection of neutrons striking the supermirror structure at a high critical angle provides enhanced neutron throughput, and hence more efficient and economical use of neutron sources. One layer of each set of bilayers consist of titanium, and the second layer of each set of bilayers consist of an alloy of nickel with carbon interstitially present in the nickel alloy.

  18. Science for Our Nation's Energy Future | U.S. DOE Office of Science (SC)

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

    Science for Our Nation's Energy Future Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research Science Highlights News & Events EFRC News EFRC Events DOE Announcements Publications History Contact BES Home 11.18.10 Science for Our Nation's Energy Future Print Text Size: A A A Subscribe FeedbackShare Page May 25-27, 2011 :: Science for Our Nation's Energy Future, the inaugural Energy Frontier Research Centers Summit and Forum on May 25 - 27, 2011 at the Renaissance Penn Quarter

  19. Clifford G. Shull, Neutron Diffraction, Hydrogen Atoms, and Neutron...

    Office of Scientific and Technical Information (OSTI)

    ... The Diffraction of Neutrons by Crystalline Powders; DOE Technical Report; 1948 Neutron Diffraction Studies, DOE Technical Report, 1948 Laue Photography of Neutron Diffraction; ...

  20. About - Combustion Energy Frontier Research Center

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

    a member of the National Academy of Engineering and a fellow of the American Academy of Arts and Sciences. The Co-director of the center is Emily A Carter, Gerhard R. Andlinger...

  1. The Learning Center | The Ames Laboratory

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

    The Learning Center Rare Earths for Science The Ames Laboratory has been actively involved in the preparation of very pure rare earth metals since the early 1940s, when Dr. Frank...

  2. Research Communications Laboratory, Museum of Science Immersion Internship

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

    | MIT-Harvard Center for Excitonics 21 | December 5, 2015 at 9-4 pm/ Museum of Science

  3. Science in St. Louis - Dr. Christine Kirmaier | Photosynthetic Antenna

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

    Research Center in St. Louis - Dr. Christine Kirmaier Science in St. Louis - Dr. Christine Kirmaier

  4. Center for Integrated Computation and Analysis of Reconnection...

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

    Objectives Current Future New science Center for Integrated Computation and Analysis of Reconnection and Turbulence (CICART) Kai Germaschewski, Amitava Bhattacharjee, Barrett...

  5. Property:NrelPartnerCenter | Open Energy Information

    Open Energy Info (EERE)

    Photovoltaics;National Wind Technology Center;Renewable Electricity & End Use Systems;Science & Technology;Thermal Systems Group;Transportation Technologies and Systems...

  6. Center for Environment and National Security at Scripps | Open...

    Open Energy Info (EERE)

    is an organization based in San Diego, California. "The Center uses the formidable science and research capacity of Scripps Institution of Oceanography to clarify significant...

  7. Yangzhou Zhongke Semiconductor Lighting Center Co Ltd | Open...

    Open Energy Info (EERE)

    Center Co. Ltd. Place: Yangzhou, Jiangsu Province, China Zip: 2250000 Product: LED packaging startup backed by the Institute of Semiconductors at Chinese Academy of Sciences...

  8. Bob Lucas USC - Lockheed Martin Quantum Computing Center Information...

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

    the User's Knowledge of Resilience Bob Lucas USC - Lockheed Martin Quantum Computing Center Information Sciences Institute Viterbi School of Engineering Collaborators * USC Jacque...

  9. Center for Materials at Irradiation and Mechanical Extremes:...

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

    Related EFRC News What are EFRCs? Energy Frontier Research Centers address energy and science "grand challenges" in a broad range of research areas, which were defined through a...

  10. Microsoft Word - Y12NeutronDoseFinalDraft.doc

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

    ORAU Technical Report 2004-1406 1 Kerr Consulting Company 2 Computer Science and Mathematics Division, Oak Ridge National Laboratory 3 Center for Epidemiologic Research, Oak ...

  11. Neutron range spectrometer

    DOE Patents [OSTI]

    Manglos, Stephen H.

    1989-06-06

    A neutron range spectrometer and method for determining the neutron energy spectrum of a neutron emitting source are disclosed. Neutrons from the source are collimnated along a collimation axis and a position sensitive neutron counter is disposed in the path of the collimated neutron beam. The counter determines positions along the collimation axis of interactions between the neutrons in the neutron beam and a neutron-absorbing material in the counter. From the interaction positions, a computer analyzes the data and determines the neutron energy spectrum of the neutron beam. The counter is preferably shielded and a suitable neutron-absorbing material is He-3. The computer solves the following equation in the analysis: ##EQU1## where: N(x).DELTA.x=the number of neutron interactions measured between a position x and x+.DELTA.x, A.sub.i (E.sub.i).DELTA.E.sub.i =the number of incident neutrons with energy between E.sub.i and E.sub.i +.DELTA.E.sub.i, and C=C(E.sub.i)=N .sigma.(E.sub.i) where N=the number density of absorbing atoms in the position sensitive counter means and .sigma. (E.sub.i)=the average cross section of the absorbing interaction between E.sub.i and E.sub.i +.DELTA.E.sub.i.

  12. Center for Gas Separations Relevant to Clean Energy Technologies (CGS) |

    Office of Science (SC) Website

    U.S. DOE Office of Science (SC) Gas Separations Relevant to Clean Energy Technologies (CGS) Energy Frontier Research Centers (EFRCs) EFRCs Home Centers EFRC External Websites Research Science Highlights News & Events Publications History Contact BES Home Centers Center for Gas Separations Relevant to Clean Energy Technologies (CGS) Print Text Size: A A A FeedbackShare Page CGS Header Director Jeffrey Long Lead Institution University of California, Berkeley Year Established 2009 Mission

  13. Science and Science Fiction

    ScienceCinema (OSTI)

    Scherrer, Robert [Vanderbilt University, Nashville, Tennessee, United States

    2009-09-01

    I will explore the similarities and differences between the process of writing science fiction and the process of 'producing' science, specifically theoretical physics. What are the ground rules for introducing unproven new ideas in science fiction, and how do they differ from the corresponding rules in physics? How predictive is science fiction? (For that matter, how predictive is theoretical physics?) I will also contrast the way in which information is presented in science fiction, as opposed to its presentation in scientific papers, and I will examine the relative importance of ideas (as opposed to the importance of the way in which these ideas are presented). Finally, I will discuss whether a background as a research scientist provides any advantage in writing science fiction.

  14. Explosives Science

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

    (DSC) Full suite of analytical instrumentation for explosives characterization Gas chromatography High-performance liquid chromatography Neutron scattering Nuclear Magnetic...

  15. Neutron streak camera

    DOE Patents [OSTI]

    Wang, C.L.

    1981-05-14

    Apparatus for improved sensitivity and time resolution of a neutron measurement. The detector is provided with an electrode assembly having a neutron sensitive cathode which emits relatively low energy secondary electrons. The neutron sensitive cathode has a large surface area which provides increased sensitivity by intercepting a greater number of neutrons. The cathode is also curved to compensate for differences in transit time of the neutrons emanating from the point source. The slower speeds of the secondary electrons emitted from a certain portion of the cathode are matched to the transit times of the neutrons impinging thereupon.

  16. Neutron streak camera

    DOE Patents [OSTI]

    Wang, C.L.

    1983-09-13

    Disclosed is an apparatus for improved sensitivity and time resolution of a neutron measurement. The detector is provided with an electrode assembly having a neutron sensitive cathode which emits relatively low energy secondary electrons. The neutron sensitive cathode has a large surface area which provides increased sensitivity by intercepting a greater number of neutrons. The cathode is also curved to compensate for differences in transit time of the neutrons emanating from the point source. The slower speeds of the secondary electrons emitted from a certain portion of the cathode are matched to the transit times of the neutrons impinging thereupon. 4 figs.

  17. Neutron streak camera

    DOE Patents [OSTI]

    Wang, Ching L.

    1983-09-13

    Apparatus for improved sensitivity and time resolution of a neutron measurement. The detector is provided with an electrode assembly having a neutron sensitive cathode which emits relatively low energy secondary electrons. The neutron sensitive cathode has a large surface area which provides increased sensitivity by intercepting a greater number of neutrons. The cathode is also curved to compensate for differences in transit time of the neutrons emanating from the point source. The slower speeds of the secondary electrons emitted from a certain portion of the cathode are matched to the transit times of the neutrons impinging thereupon.

  18. Layered semiconductor neutron detectors

    DOE Patents [OSTI]

    Mao, Samuel S; Perry, Dale L

    2013-12-10

    Room temperature operating solid state hand held neutron detectors integrate one or more relatively thin layers of a high neutron interaction cross-section element or materials with semiconductor detectors. The high neutron interaction cross-section element (e.g., Gd, B or Li) or materials comprising at least one high neutron interaction cross-section element can be in the form of unstructured layers or micro- or nano-structured arrays. Such architecture provides high efficiency neutron detector devices by capturing substantially more carriers produced from high energy .alpha.-particles or .gamma.-photons generated by neutron interaction.

  19. Organic metal neutron detector

    DOE Patents [OSTI]

    Butler, M.A.; Ginley, D.S.

    1984-11-21

    A device for detection of neutrons comprises: as an active neutron sensing element, a conductive organic polymer having an electrical conductivity and a cross-section for said neutrons whereby a detectable change in said conductivity is caused by impingement of said neutrons on the conductive organic polymer which is responsive to a property of said polymer which is altered by impingement of said neutrons on the polymer; and means for associating a change in said alterable property with the presence of neutrons at the location of said device.

  20. Neutronic Reactor Design to Reduce Neutron Loss

    DOE Patents [OSTI]

    Miles, F. T.

    1961-05-01

    A nuclear reactor construction is described in which an unmoderated layer of the fissionable material is inserted between the moderated portion of the reactor core and the core container steel wall. The wall is surrounded by successive layers of pure fertile material and moderator containing fertile material. The unmoderated layer of the fissionable material will insure that a greater portion of fast neutrons will pass through the steel wall than would thermal neutrons. Since the steel has a smaller capture cross section for the fast neutrons, greater nunnbers of neutrons will pass into the blanket, thereby increasing the over-all efficiency of the reactor. (AEC)

  1. NEUTRONIC REACTOR DESIGN TO REDUCE NEUTRON LOSS

    DOE Patents [OSTI]

    Mills, F.T.

    1961-05-01

    A nuclear reactor construction is described in which an unmoderated layer of the fissionable material is inserted between the moderated portion of the reactor core and the core container steel wall which is surrounded by successive layers of pure fertile material and fertile material having moderator. The unmoderated layer of the fissionable material will insure that a greater portion of fast neutrons will pass through the steel wall than would thermal neutrons. As the steel has a smaller capture cross-section for the fast neutrons, then greater numbers of the neutrons will pass into the blanket thereby increasing the over-all efficiency of the reactor.

  2. Science up to 100 tesla

    SciTech Connect (OSTI)

    Campbell, L.J. [Los Alamos National Lab., NM (United States). National High Magnetic Field Lab.

    1995-05-01

    100 Tesla is the highest attainable field that can be held for milli-sec in a non-destructive magnet. The strongest steels turn soft under stresses of 4GPa, which is the magnetic pressure of 100 T. Until there is a breakthrough in materials, magnets having all the low temperature and high pressure trimmings will be limited to about 100 T. Within the field range 1-100 T far more resources are now devoted to producing the highest possible continuous fields (40+5 T) than to producing longer pulsed fields above 50 T. This illustrates that the utility of the field can be more important than the strength of the field to researchers in condensed matter. Discoveries are typically made in new territory, but this can be new combinations of pressure, temperature, and magnetic field, or new probes and new materials. If any activity has kept up with the proliferation of new experiments and new facilities in high magnetic field research it is the listing of experiments that could and should be done in high fields. Part of the reason for the vitality of high field research is that high fields provide a generic environment. Compared to particle accelerators and plasma machines a high field laboratory is a setting for generic science, like synchrotron light sources or neutron scattering centers. Although the latter two installations probes states, while a magnetic field creates a state. Because it is unrealistic to try to list all the science opportunities at high fields, the author list sources for lists in the public domain and gives a few examples.

  3. ARM - Publications: Science Team Meeting Documents

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

    D.A.(a) and Charlock, T.P.(b), Analytical Services & Materials Inc.(a), Atmospheric Sciences Competency, NASA Langley Research Center (b) Twelfth Atmospheric Radiation...

  4. NERSC Staff Participate in Regional Science Bowl

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

    For more information: http:science.energy.govwdtsnsb About NERSC and Berkeley Lab The National Energy Research Scientific Computing Center (NERSC) is the primary ...

  5. ARM - Publications: Science Team Meeting Documents

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

    Evidence of Island Effects on Nauru Cole, H., and Miller, E., National Center for Atmospheric Research Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting Nauru...

  6. ARM - Publications: Science Team Meeting Documents

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

    The International Intercomparison of 3-Dimensional Radiation Codes Cahalan, R.F., NASAGoddard Space Flight Center Twelfth Atmospheric Radiation Measurement (ARM) Science Team...

  7. ARM - Publications: Science Team Meeting Documents

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

    RSS Slated for Permanent Deployment at SGP Kiedron, P., Berndt, J., Yager, E., Harrison, L., and Michalsky, J., Atmospheric Sciences Research Center, SUNY at Albany, New...

  8. ARM - Publications: Science Team Meeting Documents

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

    NIR During the 2001 Diffuse IOP Kiedron, P., Michalsky, J., Berndt, J., Min, Q., and Harrison, L., Atmospheric Sciences Research Center, SUNY Albany, New York Twelfth Atmospheric...

  9. Hawaii Ocean Science and Technology Park

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

    ... Tribal Energy Program Intellectual Property Current EC Partnerships How to Partner Small ... SunShot Grand Challenge: Regional Test Centers Hawaii Ocean Science and Technology Park ...

  10. ARM - Publications: Science Team Meeting Documents

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

    Implications of Enhanced Relative Humidity in Cold Tropical Cirrus Jensen, E.J., NASA Ames Research Center Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting...

  11. ARM - Publications: Science Team Meeting Documents

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

    (a), NASA Langley Research Center (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The state of the land surface has a direct impact on the sensible and...

  12. ARM - Publications: Science Team Meeting Documents

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

    resolution satellite validation source. The University of Wisconsin - Madison Space Science Engineering Center (SSEC) has a real-time direct broadcast downlink capability for...

  13. ARM - Publications: Science Team Meeting Documents

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

    Center for Atmospheric Research (c) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Direct aerosol forcing can be affected dramatically by cloudiness....

  14. ARM - Publications: Science Team Meeting Documents

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

    Center(c) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The probability of occurrence of the cloud top height for a given altitude and relation to the...

  15. ARM - Publications: Science Team Meeting Documents

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

    Minnis, P., and Young, D.F., NASA Langley Research Center Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting Current retrievals of cloud properties at night...

  16. Dose equivalent neutron dosimeter

    DOE Patents [OSTI]

    Griffith, Richard V.; Hankins, Dale E.; Tomasino, Luigi; Gomaa, Mohamed A. M.

    1983-01-01

    A neutron dosimeter is disclosed which provides a single measurements indicating the amount of potential biological damage resulting from the neutron exposure of the wearer, for a wide range of neutron energies. The dosimeter includes a detecting sheet of track etch detecting material such as a carbonate plastic, for detecting higher energy neutrons, and a radiator layer containing conversion material such as .sup.6 Li and .sup.10 B lying adjacent to the detecting sheet for converting moderate energy neutrons to alpha particles that produce tracks in the adjacent detecting sheet. The density of conversion material in the radiator layer is of an amount which is chosen so that the density of tracks produced in the detecting sheet is proportional to the biological damage done by neutrons, regardless of whether the tracks are produced as the result of moderate energy neutrons striking the radiator layer or as the result of higher energy neutrons striking the sheet of track etch material.

  17. Pulsed-neutron monochromator

    DOE Patents [OSTI]

    Mook, H.A. Jr.

    1984-01-01

    In one aspect, the invention is an improved pulsed-neutron monochromator of the vibrated-crystal type. The monochromator is designed to provide neutron pulses which are characterized both by short duration and high density. A row of neutron-reflecting crystals is disposed in a neutron beam to reflect neutrons onto a common target. The crystals in the row define progressively larger neutron-scattering angles and are vibrated sequentially in descending order with respect to the size of their scattering angles, thus generating neutron pulses which arrive simultaneously at the target. Transducers are coupled to one end of the crystals to vibrate them in an essentially non-resonant mode. The transducers propagate transverse waves in the crystal which progress longitudinally therein. The waves are absorbed at the undriven ends of the crystals by damping material mounted thereon. In another aspect, the invention is a method for generating neutron pulses characterized by high intensity and short duration.

  18. ULTRASONIC NEUTRON DOSIMETER

    DOE Patents [OSTI]

    Truell, R.; de Klerk, J.; Levy, P.W.

    1960-02-23

    A neutron dosimeter is described which utilizes ultrasonic waves in the megacycle region for determination of the extent of neutron damage in a borosilicate glass through ultrasonic wave velocity and attenuation measurements before and after damage.

  19. Ultrafast neutron detector

    DOE Patents [OSTI]

    Wang, C.L.

    1985-06-19

    A neutron detector of very high temporal resolution is described. It may be used to measure distributions of neutrons produced by fusion reactions that persist for times as short as about 50 picoseconds.

  20. Pulsed-neutron monochromator

    DOE Patents [OSTI]

    Mook, Jr., Herbert A. (Oak Ridge, TN)

    1985-01-01

    In one aspect, the invention is an improved pulsed-neutron monochromator of the vibrated-crystal type. The monochromator is designed to provide neutron pulses which are characterized both by short duration and high density. A row of neutron-reflecting crystals is disposed in a neutron beam to reflect neutrons onto a common target. The crystals in the row define progressively larger neutron-scattering angles and are vibrated sequentially in descending order with respect to the size of their scattering angles, thus generating neutron pulses which arrive simultaneously at the target. Transducers are coupled to one end of the crystals to vibrate them in an essentially non-resonant mode. The transducers propagate transverse waves in the crystal which progress longitudinally therein. The wave are absorbed at the undriven ends of the crystals by damping material mounted thereon. In another aspect, the invention is a method for generating neutron pulses characterized by high intensity and short duration.

  1. Neutron dose equivalent meter

    DOE Patents [OSTI]

    Olsher, Richard H. (Los Alamos, NM); Hsu, Hsiao-Hua (Los Alamos, NM); Casson, William H. (Los Alamos, NM); Vasilik, Dennis G. (Los Alamos, NM); Kleck, Jeffrey H. (Menlo Park, CA); Beverding, Anthony (Foster City, CA)

    1996-01-01

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

  2. LANSCE | Lujan Center | Instruments

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

    HIPD, HIPPO, NPDF, SMARTS Engineering Diffraction: SMARTS Reflectometer: ASTERIX Small Angle Neutron Scattering: LQD Protein Crystallography: PCS Single Crystal Diffractometer:...

  3. National Energy Research Scientific Computing Center (NERSC) | U.S. DOE

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

    Office of Science (SC) National Energy Research Scientific Computing Center (NERSC) Advanced Scientific Computing Research (ASCR) ASCR Home About Research Facilities User Facilities Argonne Leadership Computing Facility (ALCF) Energy Sciences Network (ESnet) National Energy Research Scientific Computing Center (NERSC) Oak Ridge Leadership Computing Facility (OLCF) Accessing ASCR Facilities Computational Science Graduate Fellowship (CSGF) Research & Evaluation Prototypes (REP) Science

  4. Advanced neutron absorber materials

    DOE Patents [OSTI]

    Branagan, Daniel J.; Smolik, Galen R.

    2000-01-01

    A neutron absorbing material and method utilizing rare earth elements such as gadolinium, europium and samarium to form metallic glasses and/or noble base nano/microcrystalline materials, the neutron absorbing material having a combination of superior neutron capture cross sections coupled with enhanced resistance to corrosion, oxidation and leaching.

  5. Neutrons - 88-Inch Cyclotron

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

    Neutrons Neutron beams are available at the 88-Inch Cyclotron. Available energies range of from 8 to 30 MeV, with fluxes of up to 1E8 neutrons/cm^2/sec. For more information, please contact Mike Johnson via e-mail at MBJohnson@lbl.gov, or by phone at at (510) 486-4389.

  6. Arsenic activation neutron detector

    DOE Patents [OSTI]

    Jacobs, E.L.

    1980-01-28

    A detector of bursts of neutrons from a deuterium-deuteron reaction includes a quantity of arsenic adjacent a gamma detector such as a scintillator and photomultiplier tube. The arsenic is activated by the 2.5-MeV neutrons to release gamma radiation which is detected to give a quantitative representation of detected neutrons.

  7. NREL: Energy Sciences - Tim Snow

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

    and Materials Science Center. Since graduating in 1987, he has worked within the semiconductor field for Intel, LSI Logic, Atmel, and ZettaCore, Inc. He holds a U.S. patent for...

  8. ARM - External Data Center

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

    govExternal Data Center External Data Center Order Data Description of External Data Streams Data Viewers and Plots (selected data sets) XDC Documentation External Data Center The ...

  9. Semiconductor neutron detector

    DOE Patents [OSTI]

    Ianakiev, Kiril D.; Littlewood, Peter B.; Blagoev, Krastan B.; Swinhoe, Martyn T.; Smith, James L.; Sullivan, Clair J.; Alexandrov, Boian S.; Lashley, Jason Charles

    2011-03-08

    A neutron detector has a compound of lithium in a single crystal form as a neutron sensor element. The lithium compound, containing improved charge transport properties, is either lithium niobate or lithium tantalate. The sensor element is in direct contact with a monitor that detects an electric current. A signal proportional to the electric current is produced and is calibrated to indicate the neutrons sensed. The neutron detector is particularly useful for detecting neutrons in a radiation environment. Such radiation environment may, e.g. include gamma radiation and noise.

  10. Organic metal neutron detector

    DOE Patents [OSTI]

    Butler, Michael A.; Ginley, David S.

    1987-01-01

    A device for detecting neutrons comprises a layer of conductive polymer sandwiched between electrodes, which may be covered on each face with a neutron transmissive insulating material layer. Conventional electrodes are used for a non-imaging integrating total neutron fluence-measuring embodiment, while wire grids are used in an imaging version of the device. The change in conductivity of the polymer after exposure to a neutron flux is determined in either case to provide the desired data. Alternatively, the exposed conductive polymer layer may be treated with a chemical reagent which selectively binds to the sites altered by neutrons to produce an image of the flux detected.

  11. Neutron scatter camera

    DOE Patents [OSTI]

    Mascarenhas, Nicholas; Marleau, Peter; Brennan, James S.; Krenz, Kevin D.

    2010-06-22

    An instrument that will directly image the fast fission neutrons from a special nuclear material source has been described. This instrument can improve the signal to background compared to non imaging neutron detection techniques by a factor given by ratio of the angular resolution window to 4.pi.. In addition to being a neutron imager, this instrument will also be an excellent neutron spectrometer, and will be able to differentiate between different types of neutron sources (e.g. fission, alpha-n, cosmic ray, and D-D or D-T fusion). Moreover, the instrument is able to pinpoint the source location.

  12. Neutron activation analysis system

    DOE Patents [OSTI]

    Taylor, M.C.; Rhodes, J.R.

    1973-12-25

    A neutron activation analysis system for monitoring a generally fluid media, such as slurries, solutions, and fluidized powders, including two separate conduit loops for circulating fluid samples within the range of radiation sources and detectors is described. Associated with the first loop is a neutron source that emits s high flux of slow and thermal neutrons. The second loop employs a fast neutron source, the flux from which is substantially free of thermal neutrons. Adjacent to both loops are gamma counters for spectrographic determination of the fluid constituents. Other gsmma sources and detectors are arranged across a portion of each loop for deterMining the fluid density. (Official Gazette)

  13. PERSONNEL NEUTRON DOSIMETER

    DOE Patents [OSTI]

    Fitzgerald, J.J.; Detwiler, C.G. Jr.

    1960-05-24

    A description is given of a personnel neutron dosimeter capable of indicating the complete spectrum of the neutron dose received as well as the dose for each neutron energy range therein. The device consists of three sets of indium foils supported in an aluminum case. The first set consists of three foils of indium, the second set consists of a similar set of indium foils sandwiched between layers of cadmium, whereas the third set is similar to the second set but is sandwiched between layers of polyethylene. By analysis of all the foils the neutron spectrum and the total dose from neutrons of all energy levels can be ascertained.

  14. Poetry of Science Contest | U.S. DOE Office of Science (SC)

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

    Poetry of Science Contest Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research Science Highlights News & Events EFRC News EFRC Events DOE Announcements Publications History Contact BES Home 09.30.15 Poetry of Science Contest Print Text Size: A A A Subscribe FeedbackShare Page Following the Energy Frontier Research Center (EFRC) tradition, during each Principal Investigators' meeting there is an optional contest designed to educate, inspire and entertain an intelligent, but

  15. News | Energy Frontier Research Centers

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

    News Home Full Updated List of Publications Now Available Online! The full publication list of the RMSSEC EFRC is avaialble online at the follwoing DOE website. This list is frequently updated and will provide users with the latest information on Center publications. http://science.energy.gov/bes/efrc/publications/ New ZT record set by RMSSEC researchers - appears in Nature magazine RMSSEC researchers have once again set a new recored in terms of thermoelectric performance of a material. In work

  16. Energy Sciences Network (ESnet) | U.S. DOE Office of Science (SC)

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

    Energy Sciences Network (ESnet) Advanced Scientific Computing Research (ASCR) ASCR Home About Research Facilities User Facilities Argonne Leadership Computing Facility (ALCF) Energy Sciences Network (ESnet) National Energy Research Scientific Computing Center (NERSC) Oak Ridge Leadership Computing Facility (OLCF) Accessing ASCR Facilities Computational Science Graduate Fellowship (CSGF) Research & Evaluation Prototypes (REP) Science Highlights Benefits of ASCR Funding Opportunities Advanced

  17. Biological Systems Science Division (BSSD) | U.S. DOE Office of Science

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

    (SC) Biological Systems Science Division (BSSD) Biological and Environmental Research (BER) BER Home About Research Biological Systems Science Division (BSSD) Genomic Science DOE Bioenergy Research Centers Bioimaging Technology DOE Joint Genome Institute Structural Biology Radiochemistry & Imaging Instrumentation Radiobiology: Low Dose Radiation Research DOE Human Subjects Protection Program Climate and Environmental Sciences Division (CESD) Research Abstracts Searchable Archive of BER

  18. Bisfuel links - Research centers

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

    Research centers http://bioenergy.asu.edu/" target="_blank">Center for Bioenergy and Photosynthesis

  19. Studies of light neutron-excess systems from bounds to continuum

    SciTech Connect (OSTI)

    Ito, Makoto; Otsu, Hideaki

    2012-10-20

    The generalized two-center cluster model (GTCM), which can handle various single particle configurations in general two center systems, is applied to the light neutron-rich system, {sup 12}Be = {alpha}+{alpha}+4N. We discuss the change of the neutrons' configuration around two {alpha}-cores as a variation of an excitation energy. We show that the excess neutrons form various chemical-bondinglike configurations around two {alpha} cores in the unbound region above the {alpha} decay threshold. The possibility of the {alpha} cluster formation in the heavier neutron-excess system, {sup 28}Ne, is also discussed.

  20. Cyclotrons to Make Neutrons & Radioactive Targets for SBSS at LBNL | U.S.

    Office of Science (SC) Website

    DOE Office of Science (SC) Cyclotrons to Make Neutrons & Radioactive Targets for SBSS at LBNL Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Applications of Nuclear Science Applications of Nuclear Science Archives Small Business Innovation Research / Small Business Technology Transfer Funding Opportunities Nuclear Science Advisory Committee (NSAC) Community Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown

  1. Neutron Detectors for Detection of Nuclear Materials at LANL| U.S. DOE

    Office of Science (SC) Website

    Office of Science (SC) Neutron Detectors for Detection of Nuclear Materials at LANL Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Applications of Nuclear Science Applications of Nuclear Science Archives Small Business Innovation Research / Small Business Technology Transfer Funding Opportunities Nuclear Science Advisory Committee (NSAC) Community Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000

  2. Synchrotron Science at the AAAS Annual Meeting

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

    Synchrotron Science at the AAAS Annual Meeting Synchrotron Science at the AAAS Annual Meeting Print Light sources took center stage at several sessions at the American Association for the Advancement of Science (AAAS) 2016 Annual Meeting in Washington, DC. The meeting's theme of Global Science Engagement lent itself well to the inherently collaborative nature of synchrotron science, which was featured in the following sessions. SESAME: A Scientific Source of Light in the Middle East SESAME light

  3. CISSEM | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    CISSEM Energy Frontier Research Centers (EFRCs) EFRCs Home Centers EFRC External Websites Research Science Highlights News & Events Publications History Contact BES Home Centers CISSEM Print Text Size: A A A FeedbackShare Page Center for Interface Science: Solar Electric Materials (CIS:SEM) Director(s): Neal R. Armstrong Lead Institution: University of Arizona Years: 2009-2014 Mission: To advance the understanding of interface science underlying solar energy conversion technologies based on

  4. Upgrades to the Polarized Neutron Reflectometer Asterix at LANSCE

    SciTech Connect (OSTI)

    Pynn, Roger

    2015-03-16

    We have upgraded the polarized neutron reflectometer, Asterix, at the Lujan Neutron Scattering Center at Los Alamos for the benefit of the research communities that study magnetic and complex-fluid films, both of which play important roles in support of the DOE’s energy mission. The upgrades to the instrument include: • A secondary spectrometer that was integrated with a Huber sample goniometer purchased with other funds just prior to the start of our project. The secondary spectrometer provides a flexible length for the scattered flight path, includes a mechanism to select among 3 alternative polarization analyzers as well as a support for new neutron detectors. Also included is an optic rail for reproducible positioning of components for Spin Echo Scattering Angle Measurement (SESAME). The entire secondary spectrometer is now non-magnetic, as required for neutron Larmor labeling. • A broad-band neutron polarizer for the incident neutron beam based on the V geometry. • A wide-angle neutron polarization analyzer • A 2d position-sensitive neutron detector • Electromagnetic coils (Wollaston prisms) for SESAME plus the associated power supplies, cooling, safety systems and integration into the data acquisition system. The upgrades allowed a nearly effortless transition between configurations required to serve the polarized neutron reflectometry community, users of the 11 T cryomagnet and users of SESAME.

  5. Effects of magnetization on fusion product trapping and secondary neutron

    Office of Scientific and Technical Information (OSTI)

    spectra (Journal Article) | DOE PAGES Effects of magnetization on fusion product trapping and secondary neutron spectra « Prev Next » Title: Effects of magnetization on fusion product trapping and secondary neutron spectra × You are accessing a document from the Department of Energy's (DOE) Public Access Gateway for Energy & Science (PAGES). This site is a product of DOE's Office of Scientific and Technical Information (OSTI) and is provided as a public service. Visit OSTI to utilize

  6. Measurement cell development for the neutron EDM experiment (Conference) |

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect Measurement cell development for the neutron EDM experiment Citation Details In-Document Search Title: Measurement cell development for the neutron EDM experiment × You are accessing a document from the Department of Energy's (DOE) SciTech Connect. This site is a product of DOE's Office of Scientific and Technical Information (OSTI) and is provided as a public service. Visit OSTI to utilize additional information resources in energy science and technology. A paper copy of

  7. BUILDING A NETWORK FOR NEUTRON SCATTERING EDUCATION (Technical Report) |

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect BUILDING A NETWORK FOR NEUTRON SCATTERING EDUCATION Citation Details In-Document Search Title: BUILDING A NETWORK FOR NEUTRON SCATTERING EDUCATION × You are accessing a document from the Department of Energy's (DOE) SciTech Connect. This site is a product of DOE's Office of Scientific and Technical Information (OSTI) and is provided as a public service. Visit OSTI to utilize additional information resources in energy science and technology. A paper copy of this document is

  8. Information Science & Technology Institute

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

    Opportunities » ISTI Information Science & Technology Institute Providing connection to program management for capability needs, as well as IS&T integration and support for mission-critical centers and activities. Contact Leader Francis Alexander (505) 665-4518 Email Deputy Carolyn Connor (505) 665-9891 Email Professional Staff Assistant Josephine Olivas (505) 663-5725 Email Enhancing capabilities in information science and technology by fostering science, technology, and engineering to

  9. 11th LANSCE School on Neutron Scattering | Lecturers

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

    Lecturers (Tentative) Lectures are primarily given by outside experts relevant to this year's topic. John Ankner | Oak Ridge National Laboratory John Ankner, Oak Ridge National Laboratory John Ankner is a Senior Research Scientist at the Spallation Neutron Source at Oak Ridge National Laboratory. His research centers on the design, optimization, and application of neutron reflectometers to the study of condensed-matter interfaces. Materials of interest include synthetic polymers, biological and

  10. Pulsed Neutron Measurments With A DT Neutron Generator for an Annular HEU Uranium Metal Casting

    SciTech Connect (OSTI)

    Mihalczo, John T [ORNL; Archer, Daniel E [ORNL; Wright, Michael C [ORNL; Mullens, James Allen [ORNL

    2007-09-01

    Measurements were performed with a single annular, stainless-steel-canned casting of uranium (93.17 wt% 235U) metal ( ~18 kg) to provide data to verify calculational methods for criticality safety. The measurements used a small portable DT generator with an embedded alpha detector to time and directionally tag the neutrons from the generator. The center of the time and directional tagged neutron beam was perpendicular to the axis of the casting. The radiation detectors were 1x1x6 in plastic scintillators encased in 0.635-cm-thick lead shields that were sensitive to neutrons above 1 MeV in energy. The detector lead shields were adjacent to the casting and the target spot of the generator was about 3.8 cm from the casting at the vertical center. The time distribution of the fission induced radiation was measured with respect to the source event by a fast (1GHz) processor. The measurements described in this paper also include time correlation measurements with a time tagged spontaneously fissioning 252Cf neutron source, both on the axis and on the surface of the casting. Measurements with both types of sources are compared. Measurements with the DT generator closely coupled with the HEU provide no more additional information than those with the Cf source closely coupled with the HEU and are complicated by the time and directionally tagged neutrons from the generator scattering between the walls and floor of the measurements room and the casting while still above detection thresholds.

  11. Total Cross Sections as a Surrogate for Neutron Capture: An Opportunity to Accurately Constrain (n,γ) Cross Sections for Nuclides Beyond the Reach of Direct Measurements

    SciTech Connect (OSTI)

    Koehler, Paul E.

    2014-03-05

    There are many (n,γ) cross sections of great interest to radiochemical diagnostics and to nuclear astrophysics which are beyond the reach of current measurement techniques, and likely to remain so for the foreseeable future. In contrast, total neutron cross sections currently are feasible for many of these nuclides and provide almost all the information needed to accurately calculate the (n,γ) cross sections via the nuclear statistical model (NSM). I demonstrate this for the case of 151Sm; NSM calculations constrained using average resonance parameters obtained from total cross section measurements made in 1975, are in excellent agreement with recent 151Sm (n,γ) measurements across a wide range of energy. Furthermore, I demonstrate through simulations that total cross section measurements can be made at the Manuel Lujan Jr. Neutron Scattering Center at the Los Alamos Neutron Science Center for samples as small as 10μg. Samples of this size should be attainable for many nuclides of interest. Finally, I estimate that over half of the radionuclides identified ∼20 years ago as having (n,γ) cross sections of importance to s-process nucleosynthesis studies (24/43) and radiochemical diagnostics (11/19), almost none of which have been measured, can be constrained using this technique.

  12. Science Highlights

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

    Science Highlights Science Highlights Print Science Highlights Featured scientific research based on publications resulting from work done at the ALS. Highlights are nominated by management and beamline scientists for their scientific significance. Current highlights (2004-present), highlight archives (1995-2004), and Summary Slides of ALS Science Highlights are also available. Science Briefs Short reports on recent research submitted by ALS beamline scientists and users. Science Cafés Informal

  13. Science Events

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

    Science Science Events Learn about our science by coming to Frontiers in Science lectures, catch Cafe Scientific events in your community, or come to sicence events at the Bradbury Science Museum. Jun 13 Mon 8:00 AM Excited State Processes in Electronic and Bio Nanomaterials (ESP-2016) Hilton Santa Fe Historic Plaza This interdisciplinary conference will provide an open forum for active interactions between researchers from different subfields. May 16 Mon 8:00 AM Data Science and Optimal

  14. Eleventh DOE workshop on personnel neutron dosimetry

    SciTech Connect (OSTI)

    Not Available

    1991-12-31

    Since its formation, the Office of Health (EH-40) has stressed the importance of the exchange of information related to and improvements in neutron dosimetry. This Workshop was the eleventh in the series sponsored by the Department of Energy (DOE). It provided a forum for operational personnel at DOE facilities to discuss current issues related to neutron dosimetry and for leading investigators in the field to discuss promising approaches for future research. A total of 26 papers were presented including the keynote address by Dr. Warren K. Sinclair, who spoke on, ``The 1990 Recommendations of the ICRP and their Biological Background.`` The first several papers discussed difficulties in measuring neutrons of different energies and ways of compensating or deriving correction factors at individual facilities. Presentations were also given by the US Navy and Air Force. Current research in neutron dosimeter development was the subject of the largest number of papers. These included a number on the development of neutron spectrometers. Selected papers were processed separately for inclusion in the Energy Science and Technology Database.

  15. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... More in this section... Search Federal State Local Examples Summary Tables Key Federal Legislation The information below includes a brief chronology and

  16. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Local Examples Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... More in this section... Search Federal State Local Examples

  17. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Tools Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... Fuel Properties Search Fuel Properties Comparison Create a custom chart

  18. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Incentives Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... More in this section... Search Federal State Local Examples

  19. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Federal Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... More in this section... Search Federal State Local Examples Summary

  20. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    State Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... More in this section... Search Federal State Local Examples Summary

  1. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Tools Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... Truckstop Electrification Truck Stop Electrification Locator Locate

  2. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    AFDC Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... Vehicle and Infrastructure Cash-Flow Evaluation Model VICE 2.0: Vehicle

  3. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Incentives Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... More in this section... Search Federal State Local Examples

  4. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Incentives » Federal Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... More in this section... Search Federal State Local

  5. LANSCE | Lujan Center

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

    * Julian Chen, new Protein Crystallography Station lead scientist, carving out elite niche: neutron studies of membrane proteins About Us | Contact Us | Jobs | Library |...

  6. Accelerator Science

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

    Accelerator Science Accelerator Science ReframAccelerator.jpg Particle accelerators are among the largest, most complex, and most important scientific instruments in the world....

  7. Nuclear Science

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

    Nuclear Science Nuclear Science Experimental and theoretical nuclear research carried out at NERSC is driven by the quest for improving our understanding of the building blocks of...

  8. Computer Science

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

    Cite Seer Department of Energy provided open access science research citations in chemistry, physics, materials, engineering, and computer science IEEE Xplore Full text...

  9. Design and Demonstration of a Quasi-monoenergetic Neutron Source

    SciTech Connect (OSTI)

    Joshi, T.; Sangiorgio, Samuele; Mozin, Vladimir V.; Norman, E. B.; Sorensen, Peter F.; Foxe, Michael P.; Bench, G.; Bernstein, A.

    2014-03-05

    The design of a neutron source capable of producing 24 and 70 keV neutron beams with narrow energy spread is presented. The source exploits near-threshold kinematics of the 7Li(p,n)7Be reaction while taking advantage of the interference `notches' found in the scattering cross-sections of iron. The design was implemented and characterized at the Center for Accelerator Mass Spectrometry at Lawrence Livermore National Laboratory. Alternative lters such as vanadium and manganese are also explored and the possibility of studying the response of di*erent materials to low-energy nuclear recoils using the resultant neutron beams is discussed.

  10. Fast Neutron Detection Evaluation

    SciTech Connect (OSTI)

    McKigney, Edward A.; Stange, Sy

    2014-03-17

    These slides present a summary of previous work, conclusions, and anticipated schedule for the conclusion of our fast neutron detection evaluation.

  11. Neutron detection apparatus

    DOE Patents [OSTI]

    Kopp, Manfred K.; Valentine, Kenneth H.

    1983-01-01

    An atomic fission counting apparatus used for neutron detection is provided with spirally curved electrode plates uniformly spaced apart in a circular array and coated with fissile material.

  12. Magnetization of neutron matter

    SciTech Connect (OSTI)

    Bigdeli, M.

    2011-09-21

    In this paper, we compute magnetization of neutron matter at strong magnetic field using the lowest order constrained variational (LOCV) technique.

  13. Nuclear data for basic and applied science. Volume 1

    SciTech Connect (OSTI)

    Young, P.G.; Brown, R.E.; Auchampaugh, G.F.; Lisowski, P.W.; Stewart, L.

    1985-01-01

    This book presents the papers given at a conference on nuclear data for basic and applied science. Topics considered included: nuclear data needs for fusion reactors; fast-neutron interaction with niobium; neutronic analysis of fusion-fusion (hybrid) blankets; measurements of 14 MeV neutron activation cross sections; recent experimental data on sub-barrier fission of light actinides; and intermediate structure in the fission cross sections of the even curium isotopes.

  14. Is sustainability science really a science?

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

    Is sustainability science really a science? Is sustainability science really a science? The team's work shows that although sustainability science has been growing explosively ...

  15. Neutron reactions in accreting neutron stars: a new pathway to...

    Office of Scientific and Technical Information (OSTI)

    a new pathway to efficient crust heating Citation Details In-Document Search Title: Neutron reactions in accreting neutron stars: a new pathway to efficient crust heating You ...

  16. Materials Sciences Division 1990 annual report

    SciTech Connect (OSTI)

    Not Available

    1990-01-01

    This report is the Materials Sciences Division's annual report. It contains abstracts describing materials research at the National Center for Electron Microscopy, and for research groups in metallurgy, solid-state physics, materials chemistry, electrochemical energy storage, electronic materials, surface science and catalysis, ceramic science, high tc superconductivity, polymers, composites, and high performance metals.

  17. Materials Sciences Division 1990 annual report

    SciTech Connect (OSTI)

    Not Available

    1990-12-31

    This report is the Materials Sciences Division`s annual report. It contains abstracts describing materials research at the National Center for Electron Microscopy, and for research groups in metallurgy, solid-state physics, materials chemistry, electrochemical energy storage, electronic materials, surface science and catalysis, ceramic science, high tc superconductivity, polymers, composites, and high performance metals.

  18. Argonne-Northwestern University Solar Energy Research Center (ANSER) | U.S.

    Office of Science (SC) Website

    DOE Office of Science (SC) Argonne-Northwestern University Solar Energy Research Center (ANSER) Energy Frontier Research Centers (EFRCs) EFRCs Home Centers EFRC External Websites Research Science Highlights News & Events Publications History Contact BES Home Centers Argonne-Northwestern University Solar Energy Research Center (ANSER) Print Text Size: A A A FeedbackShare Page ANSER Header Director Michael Wasielewski Lead Institution Northwestern University Year Established 2009 Mission

  19. Center for Nanoscale Controls on Geologic CO2 (NCGC) | U.S. DOE Office of

    Office of Science (SC) Website

    Science (SC) Center for Nanoscale Controls on Geologic CO2 (NCGC) Energy Frontier Research Centers (EFRCs) EFRCs Home Centers EFRC External Websites Research Science Highlights News & Events Publications History Contact BES Home Centers Center for Nanoscale Controls on Geologic CO2 (NCGC) Print Text Size: A A A FeedbackShare Page NCGC Header Director Donald DePaolo Lead Institution Lawrence Berkeley National Laboratory Year Established 2009 Mission To enhance the performance and

  20. Audit Report U.S. Department of Energy Office of Inspector General

    Energy Savers [EERE]

    Operations The Los Alamos Neutron Science Center DOE/IG-0666 November 2004

  1. Boron-Lined Multichamber and Conventional Neutron Proportional Counter Tests

    SciTech Connect (OSTI)

    Woodring, Mitchell L.; Ely, James H.; Kouzes, Richard T.; Stromswold, David C.

    2010-09-07

    Radiation portal monitors used for interdiction of illicit materials at borders include highly sensitive neutron detection systems. The main reason for having neutron detection capability is to detect fission neutrons from plutonium. The currently deployed radiation portal monitors (RPMs) from Ludlum and Science Applications International Corporation (SAIC) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large neutron detector. There is a declining supply of 3He in the world, and thus, methods to reduce the use of this gas in RPMs with minimal changes to the current system designs and sensitivity to cargo-borne neutrons are being investigated. Four technologies have been identified as being currently commercially available, potential alternative neutron detectors to replace the use of 3He in RPMs. These technologies are: 1) Boron trifluoride (BF3)-filled proportional counters, 2) Boron-lined proportional counters, 3) Lithium-loaded glass fibers, and 4) Coated non-scintillating plastic fibers. In addition, a few other companies have detector technologies that might be competitive in the near term as an alternative technology. Reported here are the results of tests of a boron-lined, multichamber proportional counter manufactured by LND, Inc. Also reported are results obtained with an earlier design of conventional, boron-lined, proportional counters from LND. This testing measured the required performance for neutron detection efficiency and gamma-ray rejection capabilities of the detectors.

  2. Boron-Lined Multitube Neutron Proportional Counter Test

    SciTech Connect (OSTI)

    Woodring, Mitchell L.; Ely, James H.; Kouzes, Richard T.; Stromswold, David C.

    2010-09-07

    Radiation portal monitors used for interdiction of illicit materials at borders include highly sensitive neutron detection systems. The main reason for having neutron detection capability is to detect fission neutrons from plutonium. The currently deployed radiation portal monitors (RPMs) from Ludlum and Science Applications International Corporation (SAIC) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large neutron detector. There is a declining supply of 3He in the world, and thus, methods to reduce the use of this gas in RPMs with minimal changes to the current system designs and sensitivity to cargo-borne neutrons are being investigated. Four technologies have been identified as being currently commercially available, potential alternative neutron detectors to replace the use of 3He in RPMs. These technologies are: 1) Boron trifluoride (BF3)-filled proportional counters, 2) Boron-lined proportional counters, 3) Lithium-loaded glass fibers, and 4) Coated non-scintillating plastic fibers. In addition, a few other companies have detector technologies that might be competitive in the near term as an alternative technology. Reported here are the results of tests of a boron-lined, multitube proportional counter manufactured by Centronic Ltd. (Surry, U.K. and Houston, TX). This testing measured the required performance for neutron detection efficiency and gamma-ray rejection capabilities of the detector.

  3. Boron-Lined Straw-Tube Neutron Detector Test

    SciTech Connect (OSTI)

    Kouzes, Richard T.; Ely, James H.; Stromswold, David C.

    2010-08-07

    Radiation portal monitors used for interdiction of illicit materials at borders include highly sensitive neutron detection systems. The main reason for having neutron detection capability is to detect fission neutrons from plutonium. The currently deployed radiation portal monitors (RPMs) from Ludlum and Science Applications International Corporation (SAIC) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large neutron detector. There is a declining supply of 3He in the world, and thus, methods to reduce the use of this gas in RPMs with minimal changes to the current system designs and sensitivity to cargo-borne neutrons are being investigated. Four technologies have been identified as being currently commercially available, potential alternative neutron detectors to replace the use of 3He in RPMs. Reported here are the results of tests of a boron-lined proportional counter design variation. In the testing described here, the neutron detection efficiency and gamma ray rejection capabilities of a system manufactured by Proportional Technologies, Inc, was tested.

  4. National Energ y Research Scientific Computing Center

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

    Annual Report This work was supported by the Director, Office of Science, Office of Advanced Scientific Computing Research of the U.S. Department of Energy under Contract No. DE-AC 03-76SF00098. LBNL-49186, December 2001 National Energ y Research Scientific Computing Center 2001 Annual Report NERSC aspires to be a world leader in accelerating scientific discovery through computation. Our vision is to provide high- performance computing tools to tackle science's biggest and most challenging

  5. Neutron capture therapies

    DOE Patents [OSTI]

    Yanch, Jacquelyn C.; Shefer, Ruth E.; Klinkowstein, Robert E.

    1999-01-01

    In one embodiment there is provided an application of the .sup.10 B(n,.alpha.).sup.7 Li nuclear reaction or other neutron capture reactions for the treatment of rheumatoid arthritis. This application, called Boron Neutron Capture Synovectomy (BNCS), requires substantially altered demands on neutron beam design than for instance treatment of deep seated tumors. Considerations for neutron beam design for the treatment of arthritic joints via BNCS are provided for, and comparisons with the design requirements for Boron Neutron Capture Therapy (BNCT) of tumors are made. In addition, exemplary moderator/reflector assemblies are provided which produce intense, high-quality neutron beams based on (p,n) accelerator-based reactions. In another embodiment there is provided the use of deuteron-based charged particle reactions to be used as sources for epithermal or thermal neutron beams for neutron capture therapies. Many d,n reactions (e.g. using deuterium, tritium or beryllium targets) are very prolific at relatively low deuteron energies.

  6. National Energy Research Scientific Computing Center

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

    Scientific Computing Center 2004 annual report Cover image: Visualization based on a simulation of the density of a fuel pellet after it is injected into a tokamak fusion reactor. See page 40 for more information. National Energy Research Scientific Computing Center 2004 annual report Ernest Orlando Lawrence Berkeley National Laboratory * University of California * Berkeley, California 94720 This work was supported by the Director, Office of Science, Office of Advanced Scientific Computing

  7. NERSC National Energy Research Scientific Computing Center

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

    National Energy Research Scientific Computing Center 2007 Annual Report National Energy Research Scientific Computing Center 2007 Annual Report Ernest Orlando Lawrence Berkeley National Laboratory 1 Cyclotron Road, Berkeley, CA 94720-8148 This work was supported by the Director, Office of Science, Office of Ad- vanced Scientific Computing Research of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. LBNL-1143E, October 2008 iii National Energy Research Scientific Computing

  8. Final Report for the “WSU Neutron Capture Therapy Facility Support”

    SciTech Connect (OSTI)

    Gerald E. Tripard; Keith G. Fox

    2006-08-24

    The objective for the cooperative research program for which this report has been written was to provide separate NCT facility user support for the students, faculty and scientists who would be doing the U.S. Department of Energy Office (DOE) of Science supported advanced radiotargeted research at the WSU 1 megawatt TRIGA reactor. The participants were the Idaho National laboratory (INL, P.I., Dave Nigg), the Veterinary Medical Research Center of Washington State University (WSU, Janean Fidel and Patrick Gavin), and the Washington State University Nuclear Radiation Center (WSU, P.I., Gerald Tripard). A significant number of DOE supported modifications were made to the WSU reactor in order to create an epithermal neutron beam while at the same time maintaining the other activities of the 1 MW reactor. These modifications were: (1) Removal of the old thermal column. (2) Construction and insertion of a new epithermal filter, collimator and shield. (3) Construction of a shielded room that could accommodate the very high radiation field created by an intense neutron beam. (4) Removal of the previous reactor core fuel cluster arrangement. (5) Design and loading of the new reactor core fuel cluster arrangement in order to optimize the neutron flux entering the epithermal neutron filter. (6) The integration of the shielded rooms interlocks and radiological controls into the SCRAM chain and operating electronics of the reactor. (7) Construction of a motorized mechanism for moving and remotely controlling the position of the entire reactor bridge. (8) The integration of the reactor bridge control electronics into the SCRAM chain and operating electronics of the reactor. (9) The design, construction and attachment to the support structure of the reactor of an irradiation box that could be inserted into position next to the face of the reactor. (Necessitated by the previously mentioned core rearrangement). All of the above modifications were successfully completed and tested. The resulting epithermal beam of 1 x 10{sup 9} n/sec-cm{sup 2} was measured by Idaho National Laboratory with assistance from WSU's Neutron Activation Analysis Group. The beam is as good as our initial proposals for the project had predicted. In addition to all of the design, construction and insertion of the hardware, shielding, electronics and radiation monitoring systems there was considerable manpower and effort put into changes in the Technical Specifications of the reactor and implementing procedures for use of the new facility. This staff involvement is one of the reasons we requested special facility support from the DOE. Once the facility was competed and all of the recalibrations and measurements made to characterize the differences between this reactor core and the previous core we began to assist INL in making their beam measurements with foils and phantoms. Although we proposed support for only one additional staff position to support this new NCT facility the staff support provided by the WSU Nuclear Radiation Center was greater than had been anticipated by our initial proposal. INL was also assisted in the testing of a heavy water (deuterated water) bladder that can be inserted into the collimator in order to produce an intense, external thermal neutron beam. The external epithermal and/or thermal neutron beam capability remains available for use, if funding becomes available for future research projects.

  9. Superconducting magnetic Wollaston prism for neutron spin encoding

    SciTech Connect (OSTI)

    Li, F., E-mail: fankli@indiana.edu; Parnell, S. R.; Wang, T.; Baxter, D. V. [Center for Exploration of Energy and Matter, Indiana University, Bloomington, Indiana 47408 (United States)] [Center for Exploration of Energy and Matter, Indiana University, Bloomington, Indiana 47408 (United States); Hamilton, W. A. [Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830 (United States)] [Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830 (United States); Maranville, B. B. [National Institute of Standards and Technology, Gaithersburg, Maryland 20899 (United States)] [National Institute of Standards and Technology, Gaithersburg, Maryland 20899 (United States); Semerad, R. [Ceraco Ceramic Coating GmbH, Ismaning 85737 (Germany)] [Ceraco Ceramic Coating GmbH, Ismaning 85737 (Germany); Cremer, J. T. [Adelphi Technology Inc., Redwood City, California 94063 (United States)] [Adelphi Technology Inc., Redwood City, California 94063 (United States); Pynn, R. [Center for Exploration of Energy and Matter, Indiana University, Bloomington, Indiana 47408 (United States) [Center for Exploration of Energy and Matter, Indiana University, Bloomington, Indiana 47408 (United States); Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830 (United States)

    2014-05-15

    A magnetic Wollaston prism can spatially split a polarized neutron beam into two beams with different neutron spin states, in a manner analogous to an optical Wollaston prism. Such a Wollaston prism can be used to encode the trajectory of neutrons into the Larmor phase associated with their spin degree of freedom. This encoding can be used for neutron phase-contrast radiography and in spin echo scattering angle measurement (SESAME). In this paper, we show that magnetic Wollaston prisms with highly uniform magnetic fields and low Larmor phase aberration can be constructed to preserve neutron polarization using high temperature superconducting (HTS) materials. The Meissner effect of HTS films is used to confine magnetic fields produced electromagnetically by current-carrying HTS tape wound on suitably shaped soft iron pole pieces. The device is cooled to ?30 K by a closed cycle refrigerator, eliminating the need to replenish liquid cryogens and greatly simplifying operation and maintenance. A HTS film ensures that the magnetic field transition within the prism is sharp, well-defined, and planar due to the Meissner effect. The spin transport efficiency across the device was measured to be ?98.5% independent of neutron wavelength and energizing current. The position-dependent Larmor phase of neutron spins was measured at the NIST Center for Neutron Research facility and found to agree well with detailed simulations. The phase varies linearly with horizontal position, as required, and the neutron beam shows little depolarization. Consequently, the device has advantages over existing devices with similar functionality and provides the capability for a large neutron beam (20 mm 30 mm) and an increase in length scales accessible to SESAME to beyond 10 ?m. With further improvements of the external coupling guide field in the prototype device, a larger neutron beam could be employed.

  10. ITER movie created by Oak Ridge National Laboratory, National Center for

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

    Computational Sciences | Princeton Plasma Physics Lab ITER movie created by Oak Ridge National Laboratory, National Center for Computational Sciences American Fusion News Category: U.S. ITER Link: ITER movie created by Oak Ridge National Laboratory, National Center for Computational Sciences

  11. Science Gateways

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

    Gateways Science Gateways About Science Gateways A science gateway is a web-based interface to access HPC computers and storage systems. Gateways allow science teams to access data, perform shared computations, and generally interact with NERSC resources over the web. Common gateway goals are to improve ease of use in HPC so that more scientists can benefit from NERSC resources to create collaborative workspaces around data and computing for science teams that use NERSC to make your data

  12. Science Highlights

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

    Science Highlights Print Science Highlights Featured scientific research based on publications resulting from work done at the ALS. Highlights are nominated by management and beamline scientists for their scientific significance. Current highlights (2004-present), highlight archives (1995-2004), and Summary Slides of ALS Science Highlights are also available. Science Briefs Short reports on recent research submitted by ALS beamline scientists and users. Science Cafés Informal lecture series

  13. Science Highlights

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

    Science Highlights Print Science Highlights Featured scientific research based on publications resulting from work done at the ALS. Highlights are nominated by management and beamline scientists for their scientific significance. Current highlights (2004-present), highlight archives (1995-2004), and Summary Slides of ALS Science Highlights are also available. Science Briefs Short reports on recent research submitted by ALS beamline scientists and users. Science Cafés Informal lecture series

  14. Energy Sciences

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

    Sciences Our Vision National User Facilities Research Areas In Focus Global Solutions ⇒ Navigate Section Our Vision National User Facilities Research Areas In Focus Global Solutions Chemical Sciences Division Chemistry is the study of matter and the changes it can undergo. Chemical Sciences Division researchers tackle critical scientific issues in chemistry at both the theoretical and experimental levels. Materials Sciences Division Materials Scientists are advancing the fundamental science of

  15. Explore Science

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

    Explore Explore Science Create your own science adventure by exploring our varied exhibits, and learn what inspired our scientists, engineers and technicians to discover new things. August 18, 2014 boys conducting experiment [Science is] a great game. It is inspiring and refreshing. The playing field is the universe itself. -I.I. Rabi Science is thinking in an organized way about things. You don't need a license or permission to practice science. Scientists are interested in just about anything

  16. Science Highlights

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

    Science Highlights Print Science Highlights Featured scientific research based on publications resulting from work done at the ALS. Highlights are nominated by management and beamline scientists for their scientific significance. Current highlights (2004-present), highlight archives (1995-2004), and Summary Slides of ALS Science Highlights are also available. Science Briefs Short reports on recent research submitted by ALS beamline scientists and users. Science Cafés Informal lecture series

  17. Science Highlights

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

    Science Highlights Print Science Highlights Featured scientific research based on publications resulting from work done at the ALS. Highlights are nominated by management and beamline scientists for their scientific significance. Current highlights (2004-present), highlight archives (1995-2004), and Summary Slides of ALS Science Highlights are also available. Science Briefs Short reports on recent research submitted by ALS beamline scientists and users. Science Cafés Informal lecture series

  18. Pocked surface neutron detector

    DOE Patents [OSTI]

    McGregor, Douglas; Klann, Raymond

    2003-04-08

    The detection efficiency, or sensitivity, of a neutron detector material such as of Si, SiC, amorphous Si, GaAs, or diamond is substantially increased by forming one or more cavities, or holes, in its surface. A neutron reactive material such as of elemental, or any compound of, .sup.10 B, .sup.6 Li, .sup.6 LiF, U, or Gd is deposited on the surface of the detector material so as to be disposed within the cavities therein. The portions of the neutron reactive material extending into the detector material substantially increase the probability of an energetic neutron reaction product in the form of a charged particle being directed into and detected by the neutron detector material.

  19. NEUTRON SHIELDING STRUCTURE

    DOE Patents [OSTI]

    Mattingly, J.T.

    1962-09-25

    A lightweight neutron shielding structure comprises a honeycomb core which is filled with a neutron absorbing powder. The honeycomb core is faced with parallel planar facing sheets to form a lightweight rigid unit. Suitable absorber powders are selected from among the following: B, B/sub 4/C, B/sub 2/O/ sub 3/, CaB/sub 6/, Li/sub 2/CO3, LiOH, LiBO/sub 2/, Li/s ub 2/O. The facing sheets are constructed of a neutron moderating material, so that fast neutrons will be moderated while traversing the facing sheets, and ultimately be absorbed by the absorber powder in the honeycomb. Beryllium is a preferred moderator material for use in the facing sheets. The advantage of the structure is that it combines the rigidity and light weight of a honeycomb construction with the neutron absorption properties of boron and lithium. (AEC)

  20. Pulsed neutron detector

    DOE Patents [OSTI]

    Robertson, deceased, J. Craig; Rowland, Mark S.

    1989-03-21

    A pulsed neutron detector and system for detecting low intensity fast neutron pulses has a body of beryllium adjacent a body of hydrogenous material the latter of which acts as a beta particle detector, scintillator, and moderator. The fast neutrons (defined as having En>1.5 MeV) react in the beryllium and the hydrogenous material to produce larger numbers of slow neutrons than would be generated in the beryllium itself and which in the beryllium generate hellium-6 which decays and yields beta particles. The beta particles reach the hydrogenous material which scintillates to yield light of intensity related to the number of fast neutrons. A photomultiplier adjacent the hydrogenous material (scintillator) senses the light emission from the scintillator. Utilization means, such as a summing device, sums the pulses from the photo-multiplier for monitoring or other purposes.