National Library of Energy BETA

Sample records for largest single source

  1. World's largest single crystal of gold verified by Los Alamos...

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

    Los Alamos verifies largest single gold crystal World's largest single crystal of gold verified by Los Alamos instruments Using Lujan Center's HIPPO instrument, researchers probed...

  2. World's largest single crystal of gold verified at Los Alamos

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

    World's largest single crystal of gold verified at Los Alamos World's largest single crystal of gold verified at Los Alamos The SCD instrument is used to determine the periodic...

  3. World's largest single crystal of gold verified at Los Alamos

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

    World's largest single crystal of gold verified at Los Alamos World's largest single crystal of gold verified at Los Alamos The SCD instrument is used to determine the periodic atomic arrangement or crystal structure of single crystals, both natural and synthetic. April 7, 2014 Neutron diffraction data collected on the single-crystal diffraction (SCD) instrument at the Lujan Center, from the Venezuelan gold sample, indicate that the sample is a single crystal. Neutron diffraction data collected

  4. Ball State University Completes Nation's Largest Ground-Source Geothermal

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

    System with Support from Recovery Act | Department of Energy Ball State University Completes Nation's Largest Ground-Source Geothermal System with Support from Recovery Act Ball State University Completes Nation's Largest Ground-Source Geothermal System with Support from Recovery Act March 20, 2012 - 3:31pm Addthis As part of the Obama Administration's all-of-the-above approach to American energy, the Energy Department today congratulated Ball State University for its campus-wide

  5. World's largest single crystal of gold verified by Los Alamos instruments

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

    Los Alamos verifies largest single gold crystal World's largest single crystal of gold verified by Los Alamos instruments Using Lujan Center's HIPPO instrument, researchers probed the specimen with neutrons to gather critical information December 22, 2014 World's largest single crystal of gold verified by Los Alamos instruments Neutron diffraction data collected on the single-crystal diffraction (SCD) instrument at the Lujan Center, from the Venezuelan gold sample, indicate that the sample is a

  6. Ball State Completes Largest U.S. Ground-Source Geothermal System |

    Office of Environmental Management (EM)

    Department of Energy Ball State Completes Largest U.S. Ground-Source Geothermal System Ball State Completes Largest U.S. Ground-Source Geothermal System April 4, 2012 - 3:19pm Addthis Ball State University has completed its campus-wide ground-source geothermal system, the nation's largest geothermal heating and cooling system, DOE announced on March 20. DOE played a part in the project by providing a $5 million grant through the American Recovery and Reinvestment Act. The Indiana-based

  7. Methods for forming particles from single source precursors

    DOE Patents [OSTI]

    Fox, Robert V. (Idaho Falls, ID); Rodriguez, Rene G. (Pocatello, ID); Pak, Joshua (Pocatello, ID)

    2011-08-23

    Single source precursors are subjected to carbon dioxide to form particles of material. The carbon dioxide may be in a supercritical state. Single source precursors also may be subjected to supercritical fluids other than supercritical carbon dioxide to form particles of material. The methods may be used to form nanoparticles. In some embodiments, the methods are used to form chalcopyrite materials. Devices such as, for example, semiconductor devices may be fabricated that include such particles. Methods of forming semiconductor devices include subjecting single source precursors to carbon dioxide to form particles of semiconductor material, and establishing electrical contact between the particles and an electrode.

  8. Natural Gas Regulation - Other Gas-Related Information Sources...

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

    Natural Gas Regulation - Other Gas-Related Information Sources Natural Gas Regulation - Other Gas-Related Information Sources The single largest source of energy information...

  9. Single-ring magnetic cusp low gas pressure ion source

    DOE Patents [OSTI]

    Bacon, Frank M. (Albuquerque, NM); Brainard, John P. (Albuquerque, NM); O'Hagan, James B. (Albuquerque, NM); Walko, Robert J. (Albuquerque, NM)

    1985-01-01

    A single-ring magnetic cusp low gas pressure ion source designed for use in a sealed, nonpumped neutron generator utilizes a cathode and an anode, three electrically floating electrodes (a reflector behind the cathode, a heat shield around the anode, and an aperture plate), together with a single ring-cusp magnetic field, to establish and energy-filtering mechanism for producing atomic-hydrogen ions.

  10. The linac coherent light source single particle imaging road map

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

    Aquila, A.; Barty, A.; Bostedt, C.; Boutet, S.; Carini, G.; dePonte, D.; Drell, P.; Doniach, S.; Downing, K. H.; Earnest, T.; et al

    2015-07-01

    Intense femtosecond x-ray pulses from free-electron laser sources allow the imaging of individual particles in a single shot. Early experiments at the Linac Coherent Light Source (LCLS) have led to rapid progress in the field and, so far, coherent diffractive images have been recorded from biological specimens, aerosols, and quantum systems with a few-tens-of-nanometers resolution. In March 2014, LCLS held a workshop to discuss the scientific and technical challenges for reaching the ultimate goal of atomic resolution with single-shot coherent diffractive imaging. This paper summarizes the workshop findings and presents the roadmap toward reaching atomic resolution, 3D imaging at free-electronmore » laser sources.« less

  11. Efficient room-temperature source of polarized single photons

    DOE Patents [OSTI]

    Lukishova, Svetlana G.; Boyd, Robert W.; Stroud, Carlos R.

    2007-08-07

    An efficient technique for producing deterministically polarized single photons uses liquid-crystal hosts of either monomeric or oligomeric/polymeric form to preferentially align the single emitters for maximum excitation efficiency. Deterministic molecular alignment also provides deterministically polarized output photons; using planar-aligned cholesteric liquid crystal hosts as 1-D photonic-band-gap microcavities tunable to the emitter fluorescence band to increase source efficiency, using liquid crystal technology to prevent emitter bleaching. Emitters comprise soluble dyes, inorganic nanocrystals or trivalent rare-earth chelates.

  12. Methods of forming single source precursors, methods of forming polymeric single source precursors, and single source precursors and intermediate products formed by such methods

    DOE Patents [OSTI]

    Fox, Robert V.; Rodriguez, Rene G.; Pak, Joshua J.; Sun, Chivin; Margulieux, Kelsey R.; Holland, Andrew W.

    2012-12-04

    Methods of forming single source precursors (SSPs) include forming intermediate products having the empirical formula 1/2{L.sub.2N(.mu.-X).sub.2M'X.sub.2}.sub.2, and reacting MER with the intermediate products to form SSPs of the formula L.sub.2N(.mu.-ER).sub.2M'(ER).sub.2, wherein L is a Lewis base, M is a Group IA atom, N is a Group IB atom, M' is a Group IIIB atom, each E is a Group VIB atom, each X is a Group VIIA atom or a nitrate group, and each R group is an alkyl, aryl, vinyl, (per)fluoro alkyl, (per)fluoro aryl, silane, or carbamato group. Methods of forming polymeric or copolymeric SSPs include reacting at least one of HE.sup.1R.sup.1E.sup.1H and MER with one or more substances having the empirical formula L.sub.2N(.mu.-ER).sub.2M'(ER).sub.2 or L.sub.2N(.mu.-X).sub.2M'(X).sub.2 to form a polymeric or copolymeric SSP. New SSPs and intermediate products are formed by such methods.

  13. Methods of forming single source precursors, methods of forming polymeric single source precursors, and single source precursors formed by such methods

    DOE Patents [OSTI]

    Fox, Robert V.; Rodriguez, Rene G.; Pak, Joshua J.; Sun, Chivin; Margulieux, Kelsey R.; Holland, Andrew W.

    2014-09-09

    Methods of forming single source precursors (SSPs) include forming intermediate products having the empirical formula 1/2{L.sub.2N(.mu.-X).sub.2M'X.sub.2}.sub.2, and reacting MER with the intermediate products to form SSPs of the formula L.sub.2N(.mu.-ER).sub.2M'(ER).sub.2, wherein L is a Lewis base, M is a Group IA atom, N is a Group IB atom, M' is a Group IIIB atom, each E is a Group VIB atom, each X is a Group VIIA atom or a nitrate group, and each R group is an alkyl, aryl, vinyl, (per)fluoro alkyl, (per)fluoro aryl, silane, or carbamato group. Methods of forming polymeric or copolymeric SSPs include reacting at least one of HE.sup.1R.sup.1E.sup.1H and MER with one or more substances having the empirical formula L.sub.2N(.mu.-ER).sub.2M'(ER).sub.2 or L.sub.2N(.mu.-X).sub.2M'(X).sub.2 to form a polymeric or copolymeric SSP. New SSPs and intermediate products are formed by such methods.

  14. Ultrafast electrical control of a resonantly driven single photon source

    SciTech Connect (OSTI)

    Cao, Y.; Bennett, A. J. Ellis, D. J. P.; Shields, A. J.; Farrer, I.; Ritchie, D. A.

    2014-08-04

    We demonstrate generation of a pulsed stream of electrically triggered single photons in resonance fluorescence, by applying high frequency electrical pulses to a single quantum dot in a p-i-n diode under resonant laser excitation. Single photon emission was verified, with the probability of multiple photon emission reduced to 2.8%. We show that despite the presence of charge noise in the emission spectrum of the dot, resonant excitation acts as a filter to generate narrow bandwidth photons.

  15. Natural Gas Regulation- Other Gas-Related Information Sources

    Broader source: Energy.gov [DOE]

    The single largest source of energy information available is the Department of Energy's Energy Information Administration (EIA). The EIA publishes extensive reports on natural gas and other energy...

  16. Energy Secretary Moniz Dedicates World's Largest Concentrating...

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

    Dedicates World's Largest Concentrating Solar Power Project Energy Secretary Moniz Dedicates World's Largest Concentrating Solar Power Project February 13, 2014 - 5:00am Addthis...

  17. Creation and recovery of a W(111) single atom gas field ion source

    SciTech Connect (OSTI)

    Pitters, Jason L.; Urban, Radovan; Wolkow, Robert A.

    2012-04-21

    Tungsten single atom tips have been prepared from a single crystal W(111) oriented wire using the chemical assisted field evaporation and etching method. Etching to a single atom tip occurs through a symmetric structure and leads to a predictable last atom unlike etching with polycrystalline tips. The single atom tip formation procedure is shown in an atom by atom removal process. Rebuilds of single atom tips occur on the same crystalline axis as the original tip such that ion emission emanates along a fixed direction for all tip rebuilds. This preparation method could be utilized and developed to prepare single atom tips for ion source development.

  18. World's Largest Concentrating Solar Power Plant Opens in California |

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

    Department of Energy Ivanpah, the world's largest concentrating solar plant, opened in California on February 13.Credit: BrightSource Energy The Ivanpah Solar Electric Generating System, the world's largest concentrating solar power (CSP) plant, officially opened on February 13. As the first commercial deployment of innovative power tower CSP technology in the United States, the Ivanpah project was the recipient of a $1.6 billion loan guarantee from the Energy Department's Loan Programs

  19. Gravitational wave hotspots: Ranking potential locations of single-source gravitational wave emission

    SciTech Connect (OSTI)

    Simon, Joseph; Polin, Abigail; Lommen, Andrea; Christy, B; Stappers, Ben; Finn, Lee Samuel; Jenet, F. A.

    2014-03-20

    The steadily improving sensitivity of pulsar timing arrays (PTAs) suggests that gravitational waves (GWs) from supermassive black hole binary (SMBHB) systems in the nearby universe will be detectable sometime during the next decade. Currently, PTAs assume an equal probability of detection from every sky position, but as evidence grows for a non-isotropic distribution of sources, is there a most likely sky position for a detectable single source of GWs? In this paper, a collection of Galactic catalogs is used to calculate various metrics related to the detectability of a single GW source resolvable above a GW background, assuming that every galaxy has the same probability of containing an SMBHB. Our analyses of these data reveal small probabilities that one of these sources is currently in the PTA band, but as sensitivity is improved regions of consistent probability density are found in predictable locations, specifically around local galaxy clusters.

  20. Ball State University Completes Nation's Largest Ground-Source...

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

    and serves as a model for other major facilities and universities across the nation. The Energy Department's Office of Energy Efficiency and Renewable Energy (EERE)...

  1. IWTU Construction Workers Set Largest Process Vessel

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

    IWTU Construction Workers Set Largest Process Vessel Click on image to enlarge Construction of the Integrated Waste Treatment Unit (IWTU) took a major step forward on Sept. 2, 2009 as crews lifted into place the largest of the six process vessels that will be used to treat radioactive liquid waste stored at the site. The IWTU will use a steam reforming process to solidify the waste for eventual shipment out of Idaho. The vessel and its skid, or framework, were constructed at Premier Technologies

  2. Nation's Largest Biomass Conference To Draw International Experts

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

    Largest Biomass Conference To Draw International Experts Technology Breakthroughs, "Green" Power, New Initiatives Focus Of Gathering For more information contact: e:mail: Public Affairs Golden, Colo., July 29, 1999 — One of mankind's oldest sources of energy may find new importance in the new millennium. Experts from around the world will review technical achievements, major new bioenergy initiatives and environmental issues surrounding the use of biomass for fuels, power and products

  3. What Is the Largest Einstein Radius in the Universe?

    SciTech Connect (OSTI)

    Oguri, Masamune; Blandford, Roger D.

    2008-08-05

    The Einstein radius plays a central role in lens studies as it characterizes the strength of gravitational lensing. In particular, the distribution of Einstein radii near the upper cutoff should probe the probability distribution of the largest mass concentrations in the universe. Adopting a triaxial halo model, we compute expected distributions of large Einstein radii. To assess the cosmic variance, we generate a number of Monte-Carlo realizations of all-sky catalogues of massive clusters. We find that the expected largest Einstein radius in the universe is sensitive to parameters characterizing the cosmological model, especially {sigma}{sub s}: for a source redshift of unity, they are 42{sub -7}{sup +9}, 35{sub -6}{sup +8}, and 54{sub -7}{sup +12} arcseconds (errors denote 1{sigma} cosmic variance), assuming best-fit cosmological parameters of the Wilkinson Microwave Anisotropy Probe five-year (WMAP5), three-year (WMAP3) and one-year (WMAP1) data, respectively. These values are broadly consistent with current observations given their incompleteness. The mass of the largest lens cluster can be as small as {approx} 10{sup 15} M{sub {circle_dot}}. For the same source redshift, we expect in all-sky {approx} 35 (WMAP5), {approx} 15 (WMAP3), and {approx} 150 (WMAP1) clusters that have Einstein radii larger than 2000. For a larger source redshift of 7, the largest Einstein radii grow approximately twice as large. While the values of the largest Einstein radii are almost unaffected by the level of the primordial non-Gaussianity currently of interest, the measurement of the abundance of moderately large lens clusters should probe non-Gaussianity competitively with cosmic microwave background experiments, but only if other cosmological parameters are well-measured. These semi-analytic predictions are based on a rather simple representation of clusters, and hence calibrating them with N-body simulations will help to improve the accuracy. We also find that these 'superlens' clusters constitute a highly biased population. For instance, a substantial fraction of these superlens clusters have major axes preferentially aligned with the line-of-sight. As a consequence, the projected mass distributions of the clusters are rounder by an ellipticity of {approx} 0.2 and have {approx} 40%-60% larger concentrations compared with typical clusters with similar redshifts and masses. We argue that the large concentration measured in A1689 is consistent with our model prediction at the 1.2{sigma} level. A combined analysis of several clusters will be needed to see whether or not the observed concentrations conflict with predictions of the at {Lambda}-dominated cold dark matter model.

  4. World's Largest Concentrating Solar Power Plant Opens in California...

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

    World's Largest Concentrating Solar Power Plant Opens in California World's Largest Concentrating Solar Power Plant Opens in California February 19, 2014 - 12:00am Addthis Ivanpah,...

  5. GTO Director Doug Hollett Delivers Keynote at the Nation's Largest...

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

    GTO Director Doug Hollett Delivers Keynote at the Nation's Largest Industry Gathering, September 29, 2014 GTO Director Doug Hollett Delivers Keynote at the Nation's Largest...

  6. Agua Caliente, World's Largest Solar Photovoltaic Plant, Helps...

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

    Agua Caliente, World's Largest Solar Photovoltaic Plant, Helps Advance America's Solar Leadership Agua Caliente, World's Largest Solar Photovoltaic Plant, Helps Advance America's ...

  7. Renewable, Green LNG: Update on the World's Largest Landill Gass...

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

    Renewable, Green LNG: Update on the World's Largest Landill Gass to LNG Plant Renewable, Green LNG: Update on the World's Largest Landill Gass to LNG Plant Presentation at the ...

  8. Agua Caliente, World's Largest Solar Photovoltaic Plant, Helps Advance

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

    America's Solar Leadership | Department of Energy Agua Caliente, World's Largest Solar Photovoltaic Plant, Helps Advance America's Solar Leadership Agua Caliente, World's Largest Solar Photovoltaic Plant, Helps Advance America's Solar Leadership April 29, 2014 - 8:40am Addthis Agua Caliente, located in Yuma County, Arizona, is now the largest solar photovoltaic power plant in the world. | Photo courtesy of NRG Energy. Agua Caliente, located in Yuma County, Arizona, is now the largest solar

  9. Use of PuBe source to simulate neutron-induced single event upsets in static RAMS

    SciTech Connect (OSTI)

    Normand, E.; Wert, J.L.; Doherty, W.R.; Oberg, D.L.; Measel, P.R.; Criswell, T.L.

    1988-12-01

    Neutron induced single event upsets were measured in static memory devices using a 10 curie PuBe source. The PuBe source conservatively overestimates the spectrum of fast neutrons emitted by a radioisotope thermoelectric generator (RTG). For the 93L422, the neutron-induced upset rate compared favorably with calculated values derived using the burst generation concept. By accounting for the production of the ionizing particles by the PuBe and RTG neutron spectra, convenient upper bound SEU upset rates for memory devices near an RTG can be derived.

  10. World's Largest Gold Crystal Studied at Los Alamos

    ScienceCinema (OSTI)

    Vogel, Sven; Nakotte, Heinz

    2015-01-07

    When geologist John Rakovan needed better tools to investigate whether a dazzling 217.78-gram piece of gold was in fact the world's largest single-crystal specimen - a distinguishing factor that would not only drastically increase its market value but also provide a unique research opportunity - he traveled to Los Alamos National Laboratory's Lujan Neutron Scattering Center to peer deep inside the mineral using neutron diffractometry. Neutrons, different from other probes such as X-rays and electrons, are able to penetrate many centimeters deep into most materials. Revealing the inner structure of a crystal without destroying the sample - imperative, as this one is worth an estimated $1.5 million - would allow Rakovan and Lujan Center collaborators Sven Vogel and Heinz Nakotte to prove that this exquisite nugget, which seemed almost too perfect and too big to be real, was a single crystal and hence a creation of nature. Its owner, who lives in the United States, provided the samples to Rakovan to assess the crystallinity of four specimens, all of which had been found decades ago in Venezuela.

  11. Modeling of single event transients with dual double-exponential current sources: Implications for logic cell characterization

    SciTech Connect (OSTI)

    Black, Dolores Archuleta; Robinson, William H.; Wilcox, Ian Zachary; Limbrick, Daniel B.; Black, Jeffrey D.

    2015-08-07

    Single event effects (SEE) are a reliability concern for modern microelectronics. Bit corruptions can be caused by single event upsets (SEUs) in the storage cells or by sampling single event transients (SETs) from a logic path. Likewise, an accurate prediction of soft error susceptibility from SETs requires good models to convert collected charge into compact descriptions of the current injection process. This paper describes a simple, yet effective, method to model the current waveform resulting from a charge collection event for SET circuit simulations. The model uses two double-exponential current sources in parallel, and the results illustrate why a conventional model based on one double-exponential source can be incomplete. Furthermore, a small set of logic cells with varying input conditions, drive strength, and output loading are simulated to extract the parameters for the dual double-exponential current sources. As a result, the parameters are based upon both the node capacitance and the restoring current (i.e., drive strength) of the logic cell.

  12. Modeling of single event transients with dual double-exponential current sources: Implications for logic cell characterization

    SciTech Connect (OSTI)

    Black, Dolores A.; Robinson, William H.; Limbrick, Daniel B.; Black, Jeffrey D.; Wilcox, Ian Z.

    2015-08-07

    Single event effects (SEE) are a reliability concern for modern microelectronics. Bit corruptions can be caused by single event upsets (SEUs) in the storage cells or by sampling single event transients (SETs) from a logic path. An accurate prediction of soft error susceptibility from SETs requires good models to convert collected charge into compact descriptions of the current injection process. This paper describes a simple, yet effective, method to model the current waveform resulting from a charge collection event for SET circuit simulations. The model uses two double-exponential current sources in parallel, and the results illustrate why a conventional model based on one double-exponential source can be incomplete. A small set of logic cells with varying input conditions, drive strength, and output loading are simulated to extract the parameters for the dual double-exponential current sources. Furthermore, the parameters are based upon both the node capacitance and the restoring current (i.e., drive strength) of the logic cell.

  13. Modeling of single event transients with dual double-exponential current sources: Implications for logic cell characterization

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

    Black, Dolores A.; Robinson, William H.; Limbrick, Daniel B.; Black, Jeffrey D.; Wilcox, Ian Z.

    2015-08-07

    Single event effects (SEE) are a reliability concern for modern microelectronics. Bit corruptions can be caused by single event upsets (SEUs) in the storage cells or by sampling single event transients (SETs) from a logic path. An accurate prediction of soft error susceptibility from SETs requires good models to convert collected charge into compact descriptions of the current injection process. This paper describes a simple, yet effective, method to model the current waveform resulting from a charge collection event for SET circuit simulations. The model uses two double-exponential current sources in parallel, and the results illustrate why a conventional modelmore » based on one double-exponential source can be incomplete. A small set of logic cells with varying input conditions, drive strength, and output loading are simulated to extract the parameters for the dual double-exponential current sources. Furthermore, the parameters are based upon both the node capacitance and the restoring current (i.e., drive strength) of the logic cell.« less

  14. Modeling of single event transients with dual double-exponential current sources: Implications for logic cell characterization

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

    Black, Dolores Archuleta; Robinson, William H.; Wilcox, Ian Zachary; Limbrick, Daniel B.; Black, Jeffrey D.

    2015-08-07

    Single event effects (SEE) are a reliability concern for modern microelectronics. Bit corruptions can be caused by single event upsets (SEUs) in the storage cells or by sampling single event transients (SETs) from a logic path. Likewise, an accurate prediction of soft error susceptibility from SETs requires good models to convert collected charge into compact descriptions of the current injection process. This paper describes a simple, yet effective, method to model the current waveform resulting from a charge collection event for SET circuit simulations. The model uses two double-exponential current sources in parallel, and the results illustrate why a conventionalmore » model based on one double-exponential source can be incomplete. Furthermore, a small set of logic cells with varying input conditions, drive strength, and output loading are simulated to extract the parameters for the dual double-exponential current sources. As a result, the parameters are based upon both the node capacitance and the restoring current (i.e., drive strength) of the logic cell.« less

  15. Controlling single and few-layer graphene crystals growth in a solid carbon source based chemical vapor deposition

    SciTech Connect (OSTI)

    Papon, Remi; Sharma, Subash; Shinde, Sachin M.; Vishwakarma, Riteshkumar; Tanemura, Masaki [Department of Frontier Materials, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555 (Japan); Kalita, Golap, E-mail: kalita.golap@nitech.ac.jp [Department of Frontier Materials, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555 (Japan); Center for Fostering Young and Innovative Researchers, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, 466-8555 (Japan)

    2014-09-29

    Here, we reveal the growth process of single and few-layer graphene crystals in the solid carbon source based chemical vapor deposition (CVD) technique. Nucleation and growth of graphene crystals on a polycrystalline Cu foil are significantly affected by the injection of carbon atoms with pyrolysis rate of the carbon source. We observe micron length ribbons like growth front as well as saturated growth edges of graphene crystals depending on growth conditions. Controlling the pyrolysis rate of carbon source, monolayer and few-layer crystals and corresponding continuous films are obtained. In a controlled process, we observed growth of large monolayer graphene crystals, which interconnect and merge together to form a continuous film. On the other hand, adlayer growth is observed with an increased pyrolysis rate, resulting few-layer graphene crystal structure and merged continuous film. The understanding of monolayer and few-layer crystals growth in the developed CVD process can be significant to grow graphene with controlled layer numbers.

  16. Recovery Act Supports Construction of Site's Largest Groundwater Treatment

    Office of Environmental Management (EM)

    Facility | Department of Energy Supports Construction of Site's Largest Groundwater Treatment Facility Recovery Act Supports Construction of Site's Largest Groundwater Treatment Facility Construction of the largest groundwater treatment facility at the Hanford Site – a major American Recovery and Reinvestment Act project – is on schedule and more than 70 percent complete. Recovery Act workers with DOE contractor CH2M HILL Plateau Remediation Company are on pace to finish

  17. Expanding the World's Largest Database of Elastic Properties

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

    Expanding the World's Largest Database of Elastic Properties Expanding the World's Largest Database of Elastic Properties NERSC, Materials Project Help Scientists Increase Available Data Almost Ten-Fold April 7, 2015 Contact: Julie Chao, jchao@lbl.gov, 510.486.6491 Scientists at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have published the world's largest set of data on the complete elastic properties of inorganic compounds, increasing by an order of

  18. Energy Secretary Moniz Dedicates World's Largest Concentrating Solar

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

    Power Project | Department of Energy Energy Secretary Moniz Dedicates World's Largest Concentrating Solar Power Project Energy Secretary Moniz Dedicates World's Largest Concentrating Solar Power Project February 13, 2014 - 5:00am Addthis NEWS MEDIA CONTACT (202) 586-4940 Energy Secretary Ernest Moniz will participate today in the opening of the Ivanpah Solar Energy Generating System, the world's largest concentrating solar power (CSP) plant. As President Obama highlighted in his State of the

  19. South Carolina Opens Nation's Largest Wind Drivetrain Testing Facility |

    Energy Savers [EERE]

    Department of Energy South Carolina Opens Nation's Largest Wind Drivetrain Testing Facility South Carolina Opens Nation's Largest Wind Drivetrain Testing Facility November 21, 2013 - 11:03am Addthis NEWS MEDIA CONTACT (202) 586-4940 NORTH CHARLESTON, S.C. - Today, U.S. Deputy Secretary of Energy Daniel Poneman joined with officials from Clemson University to dedicate the nation's largest and one of the world's most advanced wind energy testing facilities in North Charleston, S.C. Led by

  20. South Carolina Opens Nation's Largest Wind Drivetrain Testing Facility |

    Energy Savers [EERE]

    Department of Energy South Carolina Opens Nation's Largest Wind Drivetrain Testing Facility South Carolina Opens Nation's Largest Wind Drivetrain Testing Facility November 27, 2013 - 12:00am Addthis The Energy Department and Clemson University officials on November 21 dedicated the nation's largest wind energy testing facility in North Charleston, South Carolina. The facility will help test and validate new turbines, particularly for offshore wind- €helping to speed deployment of next

  1. South Carolina Opens Nation's Largest Wind Drivetrain Testing Facility |

    Energy Savers [EERE]

    Department of Energy South Carolina Opens Nation's Largest Wind Drivetrain Testing Facility South Carolina Opens Nation's Largest Wind Drivetrain Testing Facility November 21, 2013 - 11:35am Addthis Today, U.S. Deputy Secretary of Energy Daniel Poneman joined with officials from Clemson University to dedicate the nation's largest and one of the world's most advanced wind energy testing facilities in North Charleston, S.C. Led by Clemson University's Restoration Institute, the facility will

  2. SOURCE?

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

    SEEDplatform@ee.doe.gov. WHAT IS 0PEN SOURCE? Open source means that the base software code is publically available so that anyone has the ability to access and contribute to the code OPEN SOURCE BENEFITS * Platform is flexible and adaptable * Developers can create proprietary platform add- ons while still maintaining an inter-operable system * A national brand and standard is created * Local jurisdiction officials can have input on the direction and maintanence of the core code * The code base

  3. Effect of Different Carbon Sources on the Growth of Single-Walled Carbon Nanotube from MCM-41 Containing Nickel

    SciTech Connect (OSTI)

    Chen,Y.; Wang, B.; Li, L.; Yang, Y.; Ciuparu, D.; Lim, S.; Haller, G.; Pfefferle, L.

    2007-01-01

    Chemical vapor deposition growth of single-walled carbon nanotubes (SWCNTs) was studied using three representative carbon source sources: CO, ethanol, and methane, and a catalyst of Ni ions incorporated in MCM-41. The resulting SWCNTs were compared for similar reaction conditions. Carbon deposits were analyzed by multi-excitation wavelength Raman, TGA, TEM and AFM. Catalytic particles in the Ni-MCM-41 catalysts were characterized by TEM and synchrotron light source X-ray absorption spectroscopy. Under similar synthesis conditions, SWCNTs produced from CO had a relatively smaller diameter, while those from ethanol had a larger diameter. Methane could not produce SWCNTs on Ni-MCM-41 under the conditions used in this research. These results demonstrate that three carbon sources affect the dynamic balances between metallic cluster formation and carbon deposition/precipitation on the metallic cluster surface. Controlling SWCNT diameter relies on precisely regulating this dynamic process. Using different carbon sources we are able to shift this dynamic balance and produce SWCNTs with different mean diameters.

  4. Energy Department Addresses Largest Gathering of Geothermal Energy...

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

    Resources Council (GRC) in Reno, Nevada-the industry's largest annual gathering of geothermal energy stakeholders in the nation. In his keynote address, Hollett discussed...

  5. NNSA Awards Contract for Largest Federal Wind Farm to Siemens...

    National Nuclear Security Administration (NNSA)

    Contract for Largest Federal Wind Farm to Siemens Government Technologies, Inc. | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission...

  6. Lightning Dock KGRA, New Mexico's Largest Geothermal Greenhouse...

    Open Energy Info (EERE)

    Greenhouse, Largest Aquaculture Facility, and First Binary Electrical Power Plant Authors J. C. Witcher, J. W. Lund and D. E. Seawright Published Journal Geo-Heat Center Bulletin,...

  7. World’s Largest Solar Energy Project Heads to Mojave

    Broader source: Energy.gov [DOE]

    A California company will harness the Mojave Desert sunshine to create the world’s largest solar energy system by the end of 2013.

  8. Largest US oil and gas fields, August 1993

    SciTech Connect (OSTI)

    Not Available

    1993-08-06

    The Largest US Oil and Gas Fields is a technical report and part of an Energy Information Administration (EIA) series presenting distributions of US crude oil and natural gas resources, developed using field-level data collected by EIA`s annual survey of oil and gas proved reserves. The series` objective is to provide useful information beyond that routinely presented in the EIA annual report on crude oil and natural gas reserves. These special reports also will provide oil and gas resource analysts with a fuller understanding of the nature of US crude oil and natural gas occurrence, both at the macro level and with respect to the specific subjects addressed. The series` approach is to integrate EIA`s crude oil and natural gas survey data with related data obtained from other authoritative sources, and then to present illustrations and analyses of interest to a broad spectrum of energy information users ranging from the general public to oil and gas industry personnel.

  9. Bismuth(III) dialkyldithiophosphates: Facile single source precursors for the preparation of bismuth sulfide nanorods and bismuth phosphate thin films

    SciTech Connect (OSTI)

    Biswal, Jasmine B.; Garje, Shivram S.; Nuwad, Jitendra; Pillai, C.G.S.

    2013-08-15

    Two different phase pure materials (Bi{sub 2}S{sub 3} and Bi{sub 2}P{sub 4}O{sub 13}) have been prepared under different conditions using the same single source precursors. Solvothermal decomposition of the complexes, Bi(S{sub 2}P(OR){sub 2}){sub 3} [where, R=Methyl (Me) (1), Ethyl (Et) (2), n-Propyl (Pr{sup n}) (3) and iso-Propyl (Pr{sup i}) (4)] in ethylene glycol gave orthorhombic bismuth sulfide nanorods, whereas aerosol assisted chemical vapor deposition (AACVD) of the same precursors deposited monoclinic bismuth tetraphosphate (Bi{sub 2}P{sub 4}O{sub 13}) thin films on glass substrates. Surface study of the thin films using SEM illustrated the formation of variety of nanoscale morphologies (spherical-, wire-, pendent-, doughnut- and flower-like) at different temperatures. AFM studies were carried out to evaluate quality of the films in terms of uniformity and roughness. Thin films of average roughness as low as 1.4 nm were deposited using these precursors. Photoluminescence studies of Bi{sub 2}P{sub 4}O{sub 13} thin films were also carried out. - Graphical abstract: Solvothermal decomposition of bismuth(III) dialkyldithiophosphates in ethylene glycol gave Bi{sub 2}S{sub 3} nanoparticles, whereas aerosol assisted chemical vapor deposition of these single source precursors deposited Bi{sub 2}P{sub 4}O{sub 13} thin films. Display Omitted - Highlights: Preparation of phase pure orthorhombic Bi{sub 2}S{sub 3} nanorods and monoclinic Bi{sub 2}P{sub 4}O{sub 13} thin films. Use of single source precursors for deposition of bismuth phosphate thin films. Use of solvothermal decomposition and AACVD methods. Morphology controlled synthesis of Bi{sub 2}P{sub 4}O{sub 13} thin films. Bi{sub 2}S{sub 3} nanorods and Bi{sub 2}P{sub 4}O{sub 13} thin films using same single source precursors.

  10. Washington State Becomes Largest Public Consumer of Biodiesel

    Broader source: Energy.gov [DOE]

    With a $165,000 Recovery Act loan, the state of Washington is advancing its efforts toward clean energy and is now the largest public consumer of biodiesel in the country.

  11. World's Largest Post-Combustion Carbon Capture Project Begins

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

    Construction | Department of Energy World's Largest Post-Combustion Carbon Capture Project Begins Construction World's Largest Post-Combustion Carbon Capture Project Begins Construction July 15, 2014 - 9:55am Addthis News Media Contact 202-586-4940 Department of Energy Supported Project Will Capture 1.4 Million Tons of CO2 Annually Washington, D.C. - Today, the Department of Energy - in partnership with NRG Energy Inc. and JX Nippon - announced that construction has begun on the first

  12. Oak Ridge Finishes Site's Largest Demolition Project to Date | Department

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

    of Energy Finishes Site's Largest Demolition Project to Date Oak Ridge Finishes Site's Largest Demolition Project to Date July 1, 2012 - 12:00pm Addthis BEFORE: An aerial photo shows Building K-33 before demolition. BEFORE: An aerial photo shows Building K-33 before demolition. AFTER: This photo shows the site of Building K-33 following completion of the demolition project. AFTER: This photo shows the site of Building K-33 following completion of the demolition project. BEFORE: An aerial

  13. SEP Success Story: Washington State Becomes Largest Public Consumer of

    Energy Savers [EERE]

    Biodiesel | Department of Energy Washington State Becomes Largest Public Consumer of Biodiesel SEP Success Story: Washington State Becomes Largest Public Consumer of Biodiesel December 14, 2011 - 11:34am Addthis Auto and passenger ferries operated by the Washington State Transportation Department shuttle more than 11 million people across the Puget Sound every year. Now, the electric-diesel engines that propel these vessels are powered by a blend of soy-based biodiesel and petroleum diesel.

  14. Calpine: America's largest geothermal energy producer | Department of

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

    Energy Calpine: America's largest geothermal energy producer Calpine: America's largest geothermal energy producer October 6, 2010 - 12:37pm Addthis Calpine operates 15 plants at The Geysers in northwest California, which generate enough clean energy daily to power a city the size of San Francisco.| Photo Courtesy of Calpine Calpine operates 15 plants at The Geysers in northwest California, which generate enough clean energy daily to power a city the size of San Francisco.| Photo Courtesy of

  15. Energy Department Announces Largest Energy Efficiency Standard in History |

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

    Department of Energy Energy Department Announces Largest Energy Efficiency Standard in History Energy Department Announces Largest Energy Efficiency Standard in History December 17, 2015 - 12:43pm Addthis New efficiency standards expected to save more energy than any other standard issued by the Energy Department to date. New efficiency standards expected to save more energy than any other standard issued by the Energy Department to date. News Media Contact: (202) 586-4940 DOENews@hq.doe.gov

  16. Celebrating the Completion of the World's Largest Concentrating Solar Power

    Energy Savers [EERE]

    Plant | Department of Energy the Completion of the World's Largest Concentrating Solar Power Plant Celebrating the Completion of the World's Largest Concentrating Solar Power Plant February 13, 2014 - 9:21am Addthis Aerial view, Ivanpah 1 of 5 Aerial view, Ivanpah An aerial view of the Ivanpah Solar Power Facility at sunrise, with left to right Tower 1, 2 and 3. Image: Gilles Mingasson/Getty Images for Bechtel Harnessing the Power of the Sun 2 of 5 Harnessing the Power of the Sun The top of

  17. Ivanpah: World's Largest Concentrating Solar Power Plant | Department of

    Office of Environmental Management (EM)

    Energy Ivanpah: World's Largest Concentrating Solar Power Plant Ivanpah: World's Largest Concentrating Solar Power Plant Addthis Aerial view, Ivanpah 1 of 5 Aerial view, Ivanpah An aerial view of the Ivanpah Solar Power Facility at sunrise, with left to right Tower 1, 2 and 3. Image: Gilles Mingasson/Getty Images for Bechtel Harnessing the Power of the Sun 2 of 5 Harnessing the Power of the Sun The top of Tower 1's is "lit" and sunlight reflected by mirrors floats in the air as a

  18. Largest Cellulosic Ethanol Plant in the World Opened in October |

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

    Department of Energy Largest Cellulosic Ethanol Plant in the World Opened in October Largest Cellulosic Ethanol Plant in the World Opened in October November 30, 2015 - 2:07pm Addthis The DuPont cellulosic ethanol facility in Nevada, Iowa, will produce about 30 million gallons of cellulosic ethanol per year. Photo courtesy of DuPont. The DuPont cellulosic ethanol facility in Nevada, Iowa, will produce about 30 million gallons of cellulosic ethanol per year. Photo courtesy of DuPont. The

  19. National Lab 'Flips Switch' on East Coast's Largest Solar Array

    Broader source: Energy.gov [DOE]

    The 32-megawatt Long Island Solar Farm Project will produce enough energy to power up to 4,500 homes. The 164,312 solar panels hosted at the Lab in New York State constitute one of the largest solar farms built on federal property in the nation.

  20. Spectral diagnostics based on Doppler-broadened H{sub ?} line shape in a single element of a matrix source

    SciTech Connect (OSTI)

    Iordanova, S.; Pashov, A.

    2015-04-08

    The study is on optical emission spectroscopy diagnostics of a single element of a matrix source of negative hydrogen ions. The method developed for description of the hydrogen atoms behaviour is based on analysis of the Balmer H{sub ?} line profile, and it can be readily applied to various low pressure hydrogen discharges. The present observations reveal the existence of thermal as well as of non-thermal fast hydrogen atoms in the discharge. For processing of the experimental data a line shape model, which accounts for details of the plasma kinetics and the fine structure of the Balmer lines is developed. The fit of this model to the recorded at different experimental conditions line shapes results in the temperature of the thermal atoms, the mean energy of the fast atoms, the ratio between the densities of these two group of atoms and the relative populations of the fine structure components of the n = 3 hydrogen state. The present study indicates that the reactions leading to production of fast atoms and the process of energy exchange between thermal and fast atoms may be important for the correct modeling of the plasma kinetics.

  1. South Carolina Opens Nation's Largest Wind Drivetrain Testing Facility |

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

    Department of Energy Today, U.S. Deputy Secretary of Energy Daniel Poneman joined with officials from Clemson University to dedicate the nation's largest and one of the world's most advanced wind energy testing facilities in North Charleston, S.C. Led by Clemson University's Restoration Institute, the facility will help test and validate new turbines, particularly for offshore wind-helping to speed deployment of next generation energy technology, reduce costs for manufacturers, and boost

  2. EIA - Natural Gas Pipeline Network - Largest Natural Gas Pipeline Systems

    Gasoline and Diesel Fuel Update (EIA)

    Interstate Pipelines Table About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates Thirty Largest U.S. Interstate Natural Gas Pipeline Systems, 2008 (Ranked by system capacity) Pipeline Name Market Regions Served Primary Supply Regions States in Which Pipeline Operates Transported in 2007 (million dekatherm)1 System Capacity (MMcf/d) 2 System Mileage Columbia Gas Transmission Co. Northeast Southwest, Appalachia DE, PA, MD, KY, NC, NJ, NY,

  3. NREL Supports Development of World's Largest Solar Electric Power Plant

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

    Project in 14 Years - News Releases | NREL NREL Supports Development of World's Largest Solar Electric Power Plant Project in 14 Years October 19, 2005 Golden, Colo. - Researchers with the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) have collaborated with Solargenix Energy on the solar collector technology to be used in the development of Nevada Solar One, a 64-megawatt (MW) Solar Thermal Electric Generating Plant in Boulder City, Nev. "We are excited

  4. Joint Venture Established Between Russian Weapons Plant And the Largest

    National Nuclear Security Administration (NNSA)

    Dialysis Provider in the U.S. | National Nuclear Security Administration Venture Established Between Russian Weapons Plant And the Largest Dialysis Provider in the U.S. | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget

  5. Energy Department Addresses Largest Gathering of Geothermal Energy Stakeholders

    Broader source: Energy.gov [DOE]

    U.S. Department of Energy investments are tapping a vast resource of clean, baseload energy from the earth's heat, according to Douglas Hollett, Program Manager for the Department's Geothermal Technologies Office. Hollett addressed over 1,000 this week at the annual conference of the Geothermal Resources Council (GRC) in Reno, Nevadathe industry's largest annual gathering of geothermal energy stakeholders in the nation.

  6. Workplace Lessons Learned through the Nation's Largest PEV Charging Projects

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

    gov Workplace Lessons Learned through the Nation's Largest PEV Charging Projects DOE Workplace Charging Challenge Summit Alexandria, VA John Smart 11-18-2014 INL/MIS-14-33698 Idaho National Laboratory * U.S. Department of Energy (DOE) federal laboratory * 890 square mile site with 4,000 staff * Support DOE's strategic goal - Increase U.S. energy security and reduce the nation's dependence on foreign oil * Multi-program DOE laboratory - Nuclear Energy - Fossil, Biomass, Wind, Geothermal and

  7. World's Largest Laser Sets New Records | Department of Energy

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

    Ginny Simmons Ginny Simmons Former Managing Editor for Energy.gov, Office of Public Affairs What are the key facts? The National Ignition Facility in California fired a shot of 300 trillion neutrons -- one step closer to the amount of neutrons needed to reach fusion ignition. Scientists also used the laser to create a temperature of six million degrees Fahernheit. The world's largest laser, located at the National Ignition Facility (or NIF) in California, set new records on October 31 and

  8. THE BRIGHTEST CLUSTER GALAXY IN A85: THE LARGEST CORE KNOWN SO FAR

    SciTech Connect (OSTI)

    Lpez-Cruz, O.; Aorve, C.; Ibarra-Medel, H. J.; Birkinshaw, M.; Worrall, D. M.; Barkhouse, W. A.; Torres-Papaqui, J. P.

    2014-11-10

    We have found that the brightest cluster galaxy (BCG) in A85, Holm 15A, displays the largest core known so far. Its cusp radius, r {sub ?} = 4.57 0.06 kpc (4.''26 0.''06), is more than 18 times larger than the mean for BCGs and ? 1 kpc larger than A2261-BCG, hitherto the largest-cored BCG. Holm 15A hosts the luminous amorphous radio source 0039-095B and has the optical signature of a LINER. Scaling laws indicate that this core could host a supermassive black hole (SMBH) of mass M {sub } ? (10{sup 9}-10{sup 11}) M {sub ?}. We suggest that cores this large represent a relatively short phase in the evolution of BCGs, whereas the masses of their associated SBMH might be set by initial conditions.

  9. Table 2. Ten largest plants by generation capacity, 2014

    U.S. Energy Information Administration (EIA) Indexed Site

    Utah" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Intermountain Power Project","Coal","Los Angeles Department of Water & Power",1800 ...

  10. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Virginia" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Bath County","Pumped storage","Virginia Electric & Power Co",3003 2,"North ...

  11. A Five-Level Three-Phase Cascade Multilevel Inverter Using a Single DC Source for a PM Synchronous Motor Drive

    SciTech Connect (OSTI)

    Ozpineci, Burak; Chiasson, John N; Tolbert, Leon M

    2007-01-01

    The interest here is in using a single DC power source to construct a 3-phase 5-level cascade multilevel inverter to be used as a drive for a PM traction motor. The 5-level inverter consists of a standard 3-leg inverter (one leg for each phase) and an H-bridge in series with each inverter leg, which use a capacitor as a DC source. It is shown that one can simultaneously maintain the regulation of the capacitor voltage while achieving an output voltage waveform which is 25% higher than that obtained using a standard 3-leg inverter by itself.

  12. Ball State Completes Largest U.S. Ground-Source Geothermal System...

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

    To provide heating, geothermal heat pumps use a fluid to transfer heat from the Earth to buildings. For cooling, the pumps remove heat from buildings and transfer it back into the ...

  13. Table 2. Ten largest plants by generation capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    District of Columbia" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"US GSA Heating and Transmission","Natural gas","US GSA Heating and Transmission",9

  14. Plasma characteristics of single- and dual-electrode ion source systems utilized in low-energy ion extraction

    SciTech Connect (OSTI)

    Vasquez, M. R.; Tokumura, S.; Kasuya, T.; Wada, M.

    2014-02-15

    Discharge characteristics in the upstream as well as in the downstream regions of a 50-eV positive ion beam were measured along the beam axis. Single- and dual-electrode configurations made of 0.1-mm diameter tungsten wires were tested. By varying the upstream discharge parameters, the shape of the sheath edge around the extractors, which can either be planar or cylindrical, can be controlled. The sheath eventually affected the simultaneous extraction of ions and neutralizing electrons. The dual-electrode configuration at the lower discharge current, revealed a homogeneous discharge downstream. At this condition, the edge of the sheath can be inferred to be planar which allowed the uniform extraction and propagation of low-energy ions at longer distances. The dual-electrode configuration was capable of transmitting low-energy ions up to 70 mm downstream.

  15. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    California" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Dynegy Moss Landing Power Plant","Natural gas","Dynegy -Moss Landing LLC",2529 2,"Diablo Canyon","Nuclear","Pacific Gas & Electric Co",2240 3,"AES Alamitos LLC","Natural gas","AES Alamitos LLC",1997 4,"Castaic","Pumped Storage","Los Angeles

  16. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Delaware" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Hay Road","Natural gas","Calpine Mid-Atlantic Generation LLC",1136 2,"Edge Moor","Natural gas","Calpine Mid-Atlantic Generation LLC",725 3,"Indian River Generating Station","Coal","Indian River Operations Inc",591.4 4,"Delaware City Plant","Other

  17. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Illinois" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Braidwood Generation Station","Nuclear","Exelon Nuclear",2330 2,"Byron Generating Station","Nuclear","Exelon Nuclear",2300 3,"LaSalle Generating Station","Nuclear","Exelon Nuclear",2277 4,"Quad Cities Generating Station","Nuclear","Exelon

  18. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Maine" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"William F Wyman","Petroleum","FPL Energy Wyman LLC",821.6 2,"Westbrook Energy Center Power Plant","Natural gas","Westbrook Energy Center",506 3,"Maine Independence Station","Natural gas","Casco Bay Energy Co LLC",490 4,"Verso Paper","Natural

  19. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Maryland" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Chalk Point LLC","Petroleum","NRG Chalk Point LLC",2248 2,"Calvert Cliffs Nuclear Power Plant","Nuclear","Calvert Cliffs Nuclear PP LLC",1716 3,"Morgantown Generating Plant","Coal","GenOn Mid-Atlantic LLC",1423 4,"Brandon Shores","Coal","Raven

  20. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Michigan" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Monroe (MI)","Coal","DTE Electric Company",2944 2,"Donald C Cook","Nuclear","Indiana Michigan Power Co",2069 3,"Ludington","Pumped storage","Consumers Energy Co",1872 4,"Midland Cogeneration Venture","Natural gas","Midland Cogeneration

  1. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Missouri" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Labadie","Coal","Union Electric Co - (MO)",2374 2,"Iatan","Coal","Kansas City Power & Light Co",1593.8 3,"Callaway","Nuclear","Union Electric Co - (MO)",1194 4,"Rush Island","Coal","Union Electric Co - (MO)",1182 5,"New

  2. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Montana" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Colstrip","Coal","PPL Montana LLC",2094 2,"Noxon Rapids","Hydroelectric","Avista Corp",580.5 3,"Libby","Hydroelectric","USACE Northwestern Division",525 4,"Hungry Horse","Hydroelectric","U S Bureau of Reclamation",428

  3. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Nebraska" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Gerald Gentleman","Coal","Nebraska Public Power District",1365 2,"Nebraska City","Coal","Omaha Public Power District",1339.3 3,"Cooper Nuclear Station","Nuclear","Nebraska Public Power District",766 4,"North Omaha","Coal","Omaha Public Power

  4. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Jersey" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"PSEG Salem Generating Station","Nuclear","PSEG Nuclear LLC",2370.4 2,"PSEG Linden Generating Station","Natural gas","PSEG Fossil LLC",1572 3,"Bergen Generating Station","Natural gas","PSEG Fossil LLC",1208 4,"PSEG Hope Creek Generating

  5. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Mexico" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"San Juan","Coal","Public Service Co of NM",1684 2,"Four Corners","Coal","Arizona Public Service Co",1540 3,"Luna Energy Facility","Natural gas","Public Service Co of NM",559 4,"Hobbs Generating Station","Natural gas","CAMS NM LLC",530.4

  6. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Dakota" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Coal Creek","Coal","Great River Energy",1141.9 2,"Antelope Valley","Coal","Basin Electric Power Coop",900 3,"Milton R Young","Coal","Minnkota Power Coop, Inc",684 4,"Leland Olds","Coal","Basin Electric Power Coop",667

  7. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Oklahoma" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Northeastern","Coal","Public Service Co of Oklahoma",1815 2,"Redbud Power Plant","Natural gas","Oklahoma Gas & Electric Co",1752.4 3,"Muskogee","Coal","Oklahoma Gas & Electric Co",1505.5 4,"Seminole (OK)","Natural gas","Oklahoma Gas &

  8. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Oregon" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"John Day","Hydroelectric","USACE Northwestern Division",2160 2,"The Dalles","Hydroelectric","USACE Northwestern Division",1822.7 3,"Bonneville","Hydroelectric","USACE Northwestern Division",1153.9 4,"McNary","Hydroelectric","USACE Northwestern

  9. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Pennsylvania" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"PPL Susquehanna","Nuclear","PPL Susquehanna LLC",2520 2,"FirstEnergy Bruce Mansfield","Coal","FirstEnergy Generation Corp",2510 3,"Limerick","Nuclear","Exelon Nuclear",2296 4,"Peach Bottom","Nuclear","Exelon Nuclear",2250.8 5,"Homer

  10. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Rhode Island" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Entergy Rhode Island State Energy LP","Natural gas","Entergy RISE",538 2,"Manchester Street","Natural gas","Dominion Energy New England, LLC",447 3,"Tiverton Power Plant","Natural gas","Tiverton Power LLC",250 4,"Ocean State Power","Natural

  11. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Carolina" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Oconee","Nuclear","Duke Energy Carolinas, LLC",2554 2,"Cross","Coal","South Carolina Public Service Authority",2350 3,"Catawba","Nuclear","Duke Energy Carolinas, LLC",2290.2 4,"Bad Creek","Pumped Storage","Duke Energy Carolinas, LLC",1360

  12. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Texas" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"W A Parish","Coal","NRG Texas Power LLC",3675 2,"South Texas Project","Nuclear","STP Nuclear Operating Co",2560 3,"Martin Lake","Coal","Luminant Generation Company LLC",2410 4,"Comanche Peak","Nuclear","Luminant Generation Company LLC",2400

  13. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Vermont" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Vermont Yankee","Nuclear","Entergy Nuclear Vermont Yankee",619.4 2,"Kingdom Community Wind","Wind","Green Mountain Power Corp",65 3,"J C McNeil","Wood","City of Burlington Electric - (VT)",52 4,"Bellows Falls","Hydroelectric","TransCanada Hydro

  14. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Washington" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Grand Coulee","Hydroelectric","U S Bureau of Reclamation",7079 2,"Chief Joseph","Hydroelectric","USACE Northwestern Division",2456.2 3,"Transalta Centralia Generation","Coal","TransAlta Centralia Gen LLC",1340 4,"Rocky

  15. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    West Virginia" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"John E Amos","Coal","Appalachian Power Co",2900 2,"FirstEnergy Harrison Power Station","Coal","Allegheny Energy Supply Co LLC",1954 3,"Mt Storm","Coal","Virginia Electric & Power Co",1640 4,"Mitchell (WV)","Coal","Kentucky Power

  16. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Wyoming" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Jim Bridger","Coal","PacifiCorp",2111 2,"Laramie River Station","Coal","Basin Electric Power Coop",1710 3,"Dave Johnston","Coal","PacifiCorp",760 4,"Naughton","Coal","PacifiCorp",687 5,"Dry Fork Station","Coal","Basin

  17. Table 2. Ten Largest Plants by Generation Capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    United States" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Grand Coulee","Hydroelectric","U S Bureau of Reclamation",7079 2,"Palo Verde","Nuclear","Arizona Public Service Co",3937 3,"Martin","Natural gas","Florida Power & Light Co",3695 4,"W A Parish","Coal","NRG Texas Power LLC",3675

  18. Table 2. Ten largest plants by generation capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Alaska" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Beluga","Natural gas","Chugach Electric Assn Inc",344.4 2,"George M Sullivan Generation Plant 2","Natural gas","Anchorage Municipal Light and Power",248.1 3,"Southcentral Power Project","Natural gas","Chugach Electric Assn Inc",169.7 4,"North

  19. Table 2. Ten largest plants by generation capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Arizona" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Palo Verde","Nuclear","Arizona Public Service Co",3937 2,"Navajo","Coal","Salt River Project",2250 3,"Springerville","Coal","Tucson Electric Power Co",1614.1 4,"Glen Canyon Dam","Hydroelectric","U S Bureau of Reclamation",1312

  20. Table 2. Ten largest plants by generation capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Colorado" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Comanche (CO)","Coal","Public Service Co of Colorado",1410 2,"Craig (CO)","Coal","Tri-State G & T Assn, Inc",1304 3,"Fort St Vrain","Natural gas","Public Service Co of Colorado",969 4,"Rawhide","Natural gas","Platte River Power

  1. Table 2. Ten largest plants by generation capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Connecticut" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Millstone","Nuclear","Dominion Nuclear Conn Inc",2102.5 2,"Middletown","Petroleum","Middletown Power LLC",770.2 3,"Lake Road Generating Plant","Natural gas","Lake Road Generating Co LP",757.3 4,"Kleen Energy Systems Project","Natural

  2. Table 2. Ten largest plants by generation capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Florida" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Martin","Natural gas","Florida Power & Light Co",3695 2,"West County Energy Center","Natural gas","Florida Power & Light Co",3669 3,"Turkey Point","Nuclear","Florida Power & Light Co",3552 4,"Manatee","Petroleum","Florida Power &

  3. Table 2. Ten largest plants by generation capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Georgia" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Scherer","Coal","Georgia Power Co",3406.7 2,"Bowen","Coal","Georgia Power Co",3202 3,"Jack McDonough","Natural gas","Georgia Power Co",2578 4,"Vogtle","Nuclear","Georgia Power Co",2302 5,"Wansley","Coal","Georgia Power

  4. Table 2. Ten largest plants by generation capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Idaho" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Brownlee","Hydroelectric","Idaho Power Co",744 2,"Dworshak","Hydroelectric","USACE Northwestern Division",400 3,"Langley Gulch Power Plant","Natural gas","Idaho Power Co",298.7 4,"Cabinet Gorge","Hydroelectric","Avista Corp",254.6

  5. Table 2. Ten largest plants by generation capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Indiana" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Gibson","Coal","Duke Energy Indiana Inc",3132 2,"Rockport","Coal","Indiana Michigan Power Co",2600 3,"R M Schahfer","Coal","Northern Indiana Pub Serv Co",1780 4,"AES Petersburg","Coal","Indianapolis Power & Light Co",1709.5 5,"Clifty

  6. Table 2. Ten largest plants by generation capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Iowa" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Walter Scott Jr Energy Center","Coal","MidAmerican Energy Co",1635.5 2,"George Neal North","Coal","MidAmerican Energy Co",909.9 3,"Louisa","Coal","MidAmerican Energy Co",746.2 4,"Ottumwa","Coal","Interstate Power and Light Co",718.4

  7. Table 2. Ten largest plants by generation capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Kansas" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Jeffrey Energy Center","Coal","Westar Energy Inc",2155 2,"La Cygne","Coal","Kansas City Power & Light Co",1415.3 3,"Wolf Creek Generating Station","Nuclear","Wolf Creek Nuclear Optg Corp",1175 4,"Gordon Evans Energy Center","Natural gas","Kansas

  8. Table 2. Ten largest plants by generation capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Kentucky" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Paradise","Coal","Tennessee Valley Authority",2201 2,"Trimble County","Coal","Louisville Gas & Electric Co",2185 3,"Ghent","Coal","Kentucky Utilities Co",1932 4,"E W Brown","Natural gas","Kentucky Utilities Co",1496 5,"Mill Creek

  9. Table 2. Ten largest plants by generation capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Louisiana" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Big Cajun 2","Coal","Louisiana Generating LLC",1756 2,"Willow Glen","Natural gas","Entergy Gulf States - LA LLC",1748.8 3,"Brame Energy Center","Petroleum","Cleco Power LLC",1543 4,"Nine Mile Point","Natural gas","Entergy Louisiana

  10. Table 2. Ten largest plants by generation capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Minnesota" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Sherburne County","Coal","Northern States Power Co - Minnesota",2242.8 2,"Clay Boswell","Coal","Minnesota Power Inc",1082.4 3,"Prairie Island","Nuclear","Northern States Power Co - Minnesota",1040 4,"Monticello Nuclear

  11. Table 2. Ten largest plants by generation capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    York" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Robert Moses Niagara","Hydroelectric","New York Power Authority",2353.2 2,"Ravenswood","Natural gas","TC Ravenswood LLC",2207.6 3,"Nine Mile Point Nuclear Station","Nuclear","Nine Mile Point Nuclear Sta LLC",1924.1 4,"Northport","Natural

  12. Table 2. Ten largest plants by generation capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Carolina" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Roxboro","Coal","Duke Energy Progress - (NC)",2433 2,"McGuire","Nuclear","Duke Energy Carolinas, LLC",2278.1 3,"Belews Creek","Coal","Duke Energy Carolinas, LLC",2220 4,"Marshall (NC)","Coal","Duke Energy Carolinas, LLC",2078 5,"Sherwood

  13. Table 2. Ten largest plants by generation capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Dakota" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Oahe","Hydroelectric","USCE-Missouri River District",714 2,"Big Bend Dam","Hydroelectric","USCE-Missouri River District",520 3,"Big Stone","Coal","Otter Tail Power Co",475.6 4,"Fort Randall","Hydroelectric","USCE-Missouri River District",360

  14. Table 2. Ten largest plants by generation capacity, 2013

    U.S. Energy Information Administration (EIA) Indexed Site

    Tennessee" ,"Plant","Primary energy source","Operating company","Net summer capacity (MW)" 1,"Cumberland (TN)","Coal","Tennessee Valley Authority",2470 2,"Sequoyah","Nuclear","Tennessee Valley Authority",2277.7 3,"Johnsonville","Coal","Tennessee Valley Authority",2250.8 4,"Raccoon Mountain","Pumped storage","Tennessee Valley

  15. Alternative Fuels Data Center: Kansas City Home to Nation's Largest Network

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

    of EV Charging Stations Kansas City Home to Nation's Largest Network of EV Charging Stations to someone by E-mail Share Alternative Fuels Data Center: Kansas City Home to Nation's Largest Network of EV Charging Stations on Facebook Tweet about Alternative Fuels Data Center: Kansas City Home to Nation's Largest Network of EV Charging Stations on Twitter Bookmark Alternative Fuels Data Center: Kansas City Home to Nation's Largest Network of EV Charging Stations on Google Bookmark Alternative

  16. Single-Volume Neutron Scatter Camera for High-Efficiency Neutron Imaging and Source Characterization. Year 2 of 3 Summary

    SciTech Connect (OSTI)

    Brubaker, Erik

    2015-10-01

    The neutron scatter camera (NSC), an imaging spectrometer for fission energy neutrons, is an established and proven detector for nuclear security applications such as weak source detection of special nuclear material (SNM), arms control treaty verification, and emergency response. Relative to competing technologies such as coded aperture imaging, time-encoded imaging, neutron time projection chamber, and various thermal neutron imagers, the NSC provides excellent event-by-event directional information for signal/background discrimination, reasonable imaging resolution, and good energy resolution. Its primary drawback is very low detection efficiency due to the requirement for neutron elastic scatters in two detector cells. We will develop a singlevolume double-scatter neutron imager, in which both neutron scatters can occur in the same large active volume. If successful, the efficiency will be dramatically increased over the current NSC cell-based geometry. If the detection efficiency approaches that of e.g. coded aperture imaging, the other inherent advantages of double-scatter imaging would make it the most attractive fast neutron detector for a wide range of security applications.

  17. Alternative Fuels Data Center: Largest U.S. Port Complex Embraces LNG for

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

    Heavy-Duty Trucks Largest U.S. Port Complex Embraces LNG for Heavy-Duty Trucks to someone by E-mail Share Alternative Fuels Data Center: Largest U.S. Port Complex Embraces LNG for Heavy-Duty Trucks on Facebook Tweet about Alternative Fuels Data Center: Largest U.S. Port Complex Embraces LNG for Heavy-Duty Trucks on Twitter Bookmark Alternative Fuels Data Center: Largest U.S. Port Complex Embraces LNG for Heavy-Duty Trucks on Google Bookmark Alternative Fuels Data Center: Largest U.S. Port

  18. Effusive molecular beam-sampled Knudsen flow reactor coupled to vacuum ultraviolet single photon ionization mass spectrometry using an external free radical source

    SciTech Connect (OSTI)

    Leplat, N.; Rossi, M. J.

    2013-11-15

    A new apparatus using vacuum ultraviolet single photon ionization mass spectrometry (VUV SPIMS) of an effusive molecular beam emanating from a Knudsen flow reactor is described. It was designed to study free radical-molecule kinetics over a significant temperature range (300630 K). Its salient features are: (1) external free radical source, (2) counterpropagating molecular beam and diffuse VUV photon beam meeting in a crossed-beam ion source of a quadrupole mass spectrometer with perpendicular ion extraction, (3) analog detection of the photocurrent of the free radical molecular cation, and (4) possibility of detecting both free radicals and closed shell species in the same apparatus and under identical reaction conditions owing to the presence of photoelectrons generated by the photoelectric effect of the used VUV-photons. The measured thermal molecular beam-to-background ratio was 6.35 0.39 for Ar and 10.86 1.59 for i-C{sub 4}H{sub 10} at 300 K, a factor of 2.52 and 1.50 smaller, respectively, than predicted from basic gas-dynamic considerations. Operating parameters as well as the performance of key elements of the instrument are presented and discussed. Coupled to an external free radical source a steady-state specific exit flow of 1.6 10{sup 11} and 5.0 10{sup 11} molecule s{sup ?1} cm{sup ?3} of C{sub 2}H{sub 5}{sup } (ethyl) and t-C{sub 4}H{sub 9}{sup } (t-butyl) free radicals have been detected using VUV SPIMS at their molecular ion m/z 29 and 57, respectively, at 300 K.

  19. Largest Federally Owned Wind Farm Breaks Ground at U.S. Weapons Facility |

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

    Y-12 National Security Complex Largest Federally Owned ... Largest Federally Owned Wind Farm Breaks Ground at U.S. Weapons Facility Posted: August 13, 2013 - 12:01pm WASHINGTON - Building on President Obama's Climate Action Plan, which calls for steady, responsible steps to reduce carbon pollution, the Energy Department today broke ground on the nation's largest federally owned wind project at the Pantex Plant in Amarillo, Texas. Once completed, this five-turbine 11.5 megawatt project will

  20. Petra Nova Project Breaks Ground on World's Largest Post-Combustion

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

    Carbon Capture Project | Department of Energy Petra Nova Project Breaks Ground on World's Largest Post-Combustion Carbon Capture Project Petra Nova Project Breaks Ground on World's Largest Post-Combustion Carbon Capture Project September 5, 2014 - 11:13am Addthis Deputy Secretary Daniel Poneman (sixth from left) joins in the groundbreaking of the world's largest post-combustion carbon capture facility | Photo courtesy of the Energy Department. Deputy Secretary Daniel Poneman (sixth from

  1. Largest Reduction of Solar Energy in 24 Years Recorded at PSEL...

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

    Largest Reduction of Solar Energy in 24 Years Recorded at PSEL Linked to El Nio - Sandia ... Hydrogen Infrastructure Hydrogen Production Market Transformation Fuel Cells ...

  2. Energy Secretary Moniz Dedicates World’s Largest Concentrating Solar Power Project

    Broader source: Energy.gov [DOE]

    Energy Secretary Ernest Moniz will participate today in the opening of the Ivanpah Solar Energy Generating System, the world’s largest concentrating solar power (CSP) plant.

  3. GTO Director Doug Hollett Delivers Keynote at the Nation's Largest Industry Gathering, September 29, 2014

    Broader source: Energy.gov [DOE]

    The Energy Department's Geothermal Technologies Office participated in the industry's largest geothermal gathering in Portland, Oregon, with a keynote address by Director Doug Hollett.

  4. SunShot-Supported Companies to Build One of the World's Largest...

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

    the world's largest module factories in Buffalo, New York. Solar City acquired Silevo, a solar panel technology and manufacturing company whose modules have demonstrated a...

  5. DOE Finalizes $1.45 Billion Loan Guarantee for One of the World's Largest

    Energy Savers [EERE]

    Solar Generation Plants | Department of Energy 45 Billion Loan Guarantee for One of the World's Largest Solar Generation Plants DOE Finalizes $1.45 Billion Loan Guarantee for One of the World's Largest Solar Generation Plants December 21, 2010 - 12:00am Addthis Washington D.C. - U.S. Energy Secretary Steven Chu today announced a $1.45 billion loan guarantee has been finalized for Abengoa Solar Inc.'s Solana project, the world's largest parabolic trough concentrating solar plant. Located near

  6. The World's Largest 3D Printed House at EERE Industry Day | Department of

    Energy Savers [EERE]

    Energy The World's Largest 3D Printed House at EERE Industry Day The World's Largest 3D Printed House at EERE Industry Day September 29, 2015 - 2:20pm Addthis The World’s Largest 3D Printed House at EERE Industry Day Amy Jiron Amy Jiron Technology Manager, Building Technologies Office Complexity, customization, and cost are three of the most prevalent barriers to technology integration in commercial buildings. But last week at EERE Industry Day, we previewed promising solutions to these

  7. SunShot-Supported Companies to Build One of the World's Largest Module

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

    Factories | Department of Energy SunShot-Supported Companies to Build One of the World's Largest Module Factories SunShot-Supported Companies to Build One of the World's Largest Module Factories June 25, 2014 - 5:52pm Addthis EERE SunShot partners, Silevo and SolarCity have announced plans to join forces to build one of the world's largest module factories in Buffalo, New York. Solar City acquired Silevo, a solar panel technology and manufacturing company whose modules have demonstrated a

  8. Fact #858 February 2, 2015 Retail Gasoline Prices in 2014 Experienced the Largest Decline since 2008 – Dataset

    Broader source: Energy.gov [DOE]

    Excel file with dataset for Retail Gasoline Prices in 2014 Experienced the Largest Decline since 2008

  9. Workers Complete Y-12's Largest Recovery Act Project Ahead of Schedule

    Broader source: Energy.gov [DOE]

    The Y-12 National Security Complex (Y-12) recently celebrated the early completion of its largest Recovery Actfunded project, emptying all legacy material from Alpha 5. The cleanout of the 613,000...

  10. At its Largest Truck Plant, Volvo Recognized for Leadership in Energy

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

    Efficiency | Department of Energy At its Largest Truck Plant, Volvo Recognized for Leadership in Energy Efficiency At its Largest Truck Plant, Volvo Recognized for Leadership in Energy Efficiency April 1, 2014 - 3:37pm Addthis NEWS MEDIA CONTACT (202) 586-4940 DUBLIN, Va. - Building on President Obama's Better Buildings Initiative and the Administration's broader efforts to double energy productivity by 2030, the Department of Energy today recognized Volvo Group North America for its

  11. Renewable, Green LNG: Update on the World's Largest Landill Gass to LNG

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

    Plant | Department of Energy Renewable, Green LNG: Update on the World's Largest Landill Gass to LNG Plant Renewable, Green LNG: Update on the World's Largest Landill Gass to LNG Plant Presentation at the Renewable Hydrogen Workshop, Nov. 16, 2009, in Palm Springs, CA PDF icon renewable_hydrogen_workshop_nov16_eckhardt.pdf More Documents & Publications From Cleanup to Stewardship Hydrogen Embrittlement Fundamentals, Modeling, and Experiment QER - Comment of Energy Innovation 6

  12. Largest Ever Wind Power Commitments Sets Clean Energy Example for Nation

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

    'Largest Ever' Wind Power Commitments Sets Clean Energy Example for Nation NEWS MEDIA CONTACTS: Christopher Powers, DOE, 303-275-4742 Media Relations, Public Service Co., 303-294-8900 Denver, Colo., Apr. 27, 2000 - In a ceremony today attended by several hundred Federal government employees, Secretary of Energy Bill Richardson announced the largest ever commitment to purchase electricity generated by the wind. Federal government agencies along the Colorado Front Range have committed to the

  13. One of the Largest Pieces of Processing Equipment Removed from Plutonium

    Energy Savers [EERE]

    Finishing Plant - Worker involvement led to safe completion of high-hazard work | Department of Energy One of the Largest Pieces of Processing Equipment Removed from Plutonium Finishing Plant - Worker involvement led to safe completion of high-hazard work One of the Largest Pieces of Processing Equipment Removed from Plutonium Finishing Plant - Worker involvement led to safe completion of high-hazard work October 25, 2012 - 12:00pm Addthis Media Contacts Cameron Salony, DOE

  14. Assessing the Effect of Timing of Availability for Carbon Dioxide Storage in the Largest Oil and Gas Pools in the Alberta Basin: Description of Data and Methodology

    SciTech Connect (OSTI)

    Dahowski, Robert T.; Bachu, Stefan

    2007-03-05

    Carbon dioxide capture from large stationary sources and storage in geological media is a technologically-feasible mitigation measure for the reduction of anthropogenic emissions of CO2 to the atmosphere in response to climate change. Carbon dioxide (CO2) can be sequestered underground in oil and gas reservoirs, in deep saline aquifers, in uneconomic coal beds and in salt caverns. The Alberta Basin provides a very large capacity for CO2 storage in oil and gas reservoirs, along with significant capacity in deep saline formations and possible unmineable coal beds. Regional assessments of potential geological CO2 storage capacity have largely focused so far on estimating the total capacity that might be available within each type of reservoir. While deep saline formations are effectively able to accept CO2 immediately, the storage potential of other classes of candidate storage reservoirs, primarily oil and gas fields, is not fully available at present time. Capacity estimates to date have largely overlooked rates of depletion in these types of storage reservoirs and typically report the total estimated storage capacity that will be available upon depletion. However, CO2 storage will not (and cannot economically) begin until the recoverable oil and gas have been produced via traditional means. This report describes a reevaluation of the CO2 storage capacity and an assessment of the timing of availability of the oil and gas pools in the Alberta Basin with very large storage capacity (>5 MtCO2 each) that are being looked at as likely targets for early implementation of CO2 storage in the region. Over 36,000 non-commingled (i.e., single) oil and gas pools were examined with effective CO2 storage capacities being individually estimated. For each pool, the life expectancy was estimated based on a combination of production decline analysis constrained by the remaining recoverable reserves and an assessment of economic viability, yielding an estimated depletion date, or year that it will be available for CO2 storage. The modeling framework and assumptions used to assess the impact of the timing of CO2 storage resource availability on the regions deployment of CCS technologies is also described. The purpose of this report is to describe the data and methodology for examining the carbon dioxide (CO2) storage capacity resource of a major hydrocarbon province incorporating estimated depletion dates for its oil and gas fields with the largest CO2 storage capacity. This allows the development of a projected timeline for CO2 storage availability across the basin and enables a more realistic examination of potential oil and gas field CO2 storage utilization by the regions large CO2 point sources. The Alberta Basin of western Canada was selected for this initial examination as a representative mature basin, and the development of capacity and depletion date estimates for the 227 largest oil and gas pools (with a total storage capacity of 4.7 GtCO2) is described, along with the impact on source-reservoir pairing and resulting CO2 transport and storage economics. The analysis indicates that timing of storage resource availability has a significant impact on the mix of storage reservoirs selected for utilization at a given time, and further confirms the value that all available reservoir types offer, providing important insights regarding CO2 storage implementation to this and other major oil and gas basins throughout North America and the rest of the world. For CCS technologies to deploy successfully and offer a meaningful contribution to climate change mitigation, CO2 storage reservoirs must be available not only where needed (preferably co-located with or near large concentrations of CO2 sources or emissions centers) but also when needed. The timing of CO2 storage resource availability is therefore an important factor to consider when assessing the real opportunities for CCS deployment in a given region.

  15. Secretary Chu, Mayor Stanton to Unveil Phase Two of Nation's Largest

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

    Solar Financing Program in Arizona | Department of Energy Chu, Mayor Stanton to Unveil Phase Two of Nation's Largest Solar Financing Program in Arizona Secretary Chu, Mayor Stanton to Unveil Phase Two of Nation's Largest Solar Financing Program in Arizona May 14, 2012 - 2:44pm Addthis News Media Contact (202) 586-4940 WASHINGTON - On Tuesday, May 15, 2012, U.S. Energy Secretary Steven Chu, Phoenix Mayor Greg Stanton, CEO of National Bank of Arizona Keith Maio, and Managing Director of

  16. Upper Bound of 0.28 eV on Neutrino Masses from the Largest Photometric

    Office of Scientific and Technical Information (OSTI)

    Redshift Survey (Journal Article) | SciTech Connect Upper Bound of 0.28 eV on Neutrino Masses from the Largest Photometric Redshift Survey Citation Details In-Document Search Title: Upper Bound of 0.28 eV on Neutrino Masses from the Largest Photometric Redshift Survey We present a new limit of (95% CL) on the sum of the neutrino masses assuming a flat {Lambda}CDM cosmology. This relaxes slightly to and when quasinonlinear scales are removed and w{ne}-1, respectively. These are derived from a

  17. Caithness Shephards Flat: The Largest Wind Farm Project in the World |

    Energy Savers [EERE]

    Department of Energy Caithness Shephards Flat: The Largest Wind Farm Project in the World Caithness Shephards Flat: The Largest Wind Farm Project in the World October 12, 2010 - 5:04pm Addthis Andy Oare Andy Oare Former New Media Strategist, Office of Public Affairs What does this project do? Wind farm project is projected to employ over 400 people in construction phase. It is expected to produce 845 megawatt wind-powered electrical generation, or enough wind energy to supply 235,000 homes.

  18. Photos of One of the World's Largest Wind Farms | Department of Energy

    Energy Savers [EERE]

    Photos of One of the World's Largest Wind Farms Photos of One of the World's Largest Wind Farms February 6, 2013 - 4:20pm Addthis 1 of 5 Image: Caithness Energy 2 of 5 Image: Caithness Energy 3 of 5 Image: Caithness Energy 4 of 5 Image: Caithness Energy 5 of 5 Image: Caithness Energy Erin R. Pierce Erin R. Pierce Former Digital Communications Specialist, Office of Public Affairs Panoramic View See a landscape shot of the Shepherds Flat Wind Farm here America's clean energy industry continues to

  19. Largest Cellulosic Ethanol Plant in the World Opens October 30 | Department

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

    of Energy Largest Cellulosic Ethanol Plant in the World Opens October 30 Largest Cellulosic Ethanol Plant in the World Opens October 30 October 26, 2015 - 2:52pm Addthis The DuPont cellulosic ethanol facility in Nevada, Iowa, will produce about 30 million gallons of cellulosic ethanol per year. Photo courtesy of DuPont. The DuPont cellulosic ethanol facility in Nevada, Iowa, will produce about 30 million gallons of cellulosic ethanol per year. Photo courtesy of DuPont. The DuPont cellulosic

  20. Largest Solar Panel Installation at a U.S. University Goes Live |

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

    Department of Energy Largest Solar Panel Installation at a U.S. University Goes Live Largest Solar Panel Installation at a U.S. University Goes Live November 4, 2010 - 6:10pm Addthis Sen. Menendez, Rep. Pascrell, John Lushetsky and other officials at the ribbon cutting. Sen. Menendez, Rep. Pascrell, John Lushetsky and other officials at the ribbon cutting. John Lushetsky Strategic Programs Director A couple of weeks ago, I had the opportunity to participate in a ribbon cutting event for the

  1. EERE Success Story-Largest Cellulosic Ethanol Plant in the World Opened

    Office of Environmental Management (EM)

    in October | Department of Energy Largest Cellulosic Ethanol Plant in the World Opened in October EERE Success Story-Largest Cellulosic Ethanol Plant in the World Opened in October November 30, 2015 - 2:07pm Addthis The DuPont cellulosic ethanol facility in Nevada, Iowa, will produce about 30 million gallons of cellulosic ethanol per year. Photo courtesy of DuPont. The DuPont cellulosic ethanol facility in Nevada, Iowa, will produce about 30 million gallons of cellulosic ethanol per year.

  2. Largest-area Photonic Crystal LED Fabricated Demonstrates Uniform Light Emission

    Broader source: Energy.gov [DOE]

    Lumileds Lighting, the University of New Mexico, and Sandia National Laboratories teamed to demonstrate uniform light emission from the largest-area III-Nitride photonic crystal LED (1 x 1 mm2) ever fabricated. Most previous photonic crystal LED research has relied on small-area patterns written by slow, serial-writing electron-beam lithography.

  3. NNSA Awards Contract for Largest Federal Wind Farm to Siemens Government

    National Nuclear Security Administration (NNSA)

    Technologies, Inc. | National Nuclear Security Administration Contract for Largest Federal Wind Farm to Siemens Government Technologies, Inc. | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library

  4. PPPL and ITER: Lab teams support the world's largest fusion experiment

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

    with leading-edge ideas and design | Princeton Plasma Physics Lab and ITER: Lab teams support the world's largest fusion experiment with leading-edge ideas and design By John Greenwald May 7, 2013 Tweet Widget Google Plus One Share on Facebook PPPL scientists, engineers, technicians and other specialists contribute to the international project. (Photo by Elle Starkman/ PPPL Office of Communications) PPPL scientists, engineers, technicians and other specialists contribute to the international

  5. Rapid Deposition Technology Holds the Key for the World's Largest Solar Manufacturer (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-10-01

    Thanks in part to years of collaboration with the National Renewable Energy Laboratory (NREL), a manufacturer of thin-film solar modules has grown from a small garage-type operation to become the world's largest manufacturer of solar modules. First Solar, Inc. now manufactures cadmium telluride (CdTe) solar modules throughout the world, but it began in Ohio as a small company called Solar Cells, Inc.

  6. Largest Reduction of Solar Energy in 24 Years Recorded at PSEL Linked to El

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

    Niño Largest Reduction of Solar Energy in 24 Years Recorded at PSEL Linked to El Niño - 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

  7. NREL Reports Soft Costs Now Largest Piece of Solar Installation Total Cost

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

    - News Releases | NREL Reports Soft Costs Now Largest Piece of Solar Installation Total Cost December 2, 2013 Two detailed reports from the Energy Department's National Renewable Energy Laboratory (NREL) find that solar financing and other non-hardware costs - often referred to as "soft costs" - now comprise up to 64% of the total price of residential solar energy systems, reflecting how soft costs are becoming an increasingly larger fraction of the cost of installing solar.

  8. The World's Largest Medical Center is Now Among the Most Energy Efficient

    Energy Savers [EERE]

    | Department of Energy Medical Center is Now Among the Most Energy Efficient The World's Largest Medical Center is Now Among the Most Energy Efficient May 18, 2011 - 2:52pm Addthis Thermal Energy Corporation's (TECO) Control Room | Photo Courtesy of the Texas Medical Center Thermal Energy Corporation's (TECO) Control Room | Photo Courtesy of the Texas Medical Center Lowell Sachs Lead Technology Partnership Specialist, Industrial Technologies Program Houston-based Texas Medical Center

  9. Largest On-Campus Solar Facility Being Installed at William Paterson |

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

    Department of Energy Paul Lester Paul Lester Digital Content Specialist, Office of Public Affairs What does this project do? Solar arrays at parking lots and photovoltaic cells on the rooftops of campus buildings should provide about 15 to 20 percent of our energy needs on the campus. Cranes place solar panels on roofs and the screech of drills can be heard throughout the campus of William Paterson University as workers begin installing a massive solar farm, the largest on a U.S. college

  10. Pennsylvania and West Virginia show largest increases in natural gas proved reserves

    Gasoline and Diesel Fuel Update (EIA)

    Pennsylvania and West Virginia show largest increases in natural gas proved reserves U.S. natural gas proved reserves have hit an all-time high...with Pennsylvania and West Virginia accounting for 70% of the increase ...according to the U.S. Energy Information Administration. In a new report, EIA says that U.S. proved reserves of natural gas reached a record 354 trillion cubic feet at the end of 2013. That's up 10% from the year before. Proved reserves are those volumes of natural gas that

  11. The World's Largest Solar Project Finds a Home in California | Department

    Energy Savers [EERE]

    of Energy Solar Project Finds a Home in California The World's Largest Solar Project Finds a Home in California October 27, 2010 - 3:49pm Addthis John Schueler John Schueler Former New Media Specialist, Office of Public Affairs What does this project do? The Blythe site will be the first of four solar thermal plant developments that will eventually produce 2,800 megawatts of electricity, powering up to two million homes in the region. The massive project will generate over 1,000 construction

  12. Rapid Deposition Technology Holds the Key for the World's Largest Manufacturer of Thin-Film Solar Modules (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-08-01

    First Solar, Inc. has been collaborating with NREL since 1991, advancing its thin-film cadmium telluride solar technology to grow from a startup company to become one of the world's largest manufacturers of solar modules, and the world's largest manufacturer of thin-film solar modules.

  13. From Pushing Paper to Pushing Dirt - Canada's Largest LLRW Cleanup Gets Underway - 13111

    SciTech Connect (OSTI)

    Veen, Walter van; Lawrence, Dave

    2013-07-01

    The Port Hope Project is the larger of the two projects in the Port Hope Area Initiative (PHAI), Canada's largest low level radioactive waste (LLRW) cleanup. With a budget of approximately $1 billion, the Port Hope Project includes a broad and complex range of remedial elements from a state of the art water treatment plant, an engineered waste management facility, municipal solid waste removal, remediation of 18 major sites within the Municipality of Port Hope (MPH), sediment dredging and dewatering, an investigation of 4,800 properties (many of these homes) to identify LLRW and remediation of approximately 450 of these properties. This paper discusses the status of the Port Hope Project in terms of designs completed and regulatory approvals received, and sets out the scope and schedule for the remaining studies, engineering designs and remediation contracts. (authors)

  14. System and method for single-phase, single-stage grid-interactive...

    Office of Scientific and Technical Information (OSTI)

    Title: System and method for single-phase, single-stage grid-interactive inverter The present invention provides for the integration of distributed renewable energy sources...

  15. State-owned companies dominate list of largest non-U. S. producers

    SciTech Connect (OSTI)

    Beck, R.J.; Williamson, M.

    1994-09-05

    Because state-owned oil and gas companies dominate Oil and Gas Journal's list of largest non-US producers, data aren't fully comparable with those of the OGJ300. Many state companies report only production and reserves, with little or no financial data. Companies on the OGJ100, therefore, cannot be ranked by assets or revenues. Instead, they are listed by regions, based on location of corporate headquarters. There was no change in makeup of the top 20 holders of crude oil reserves. These companies' reserves totaled 872.3 billion bbl in 1993. The top 20 non-US companies now control 87.3 % of total world crude oil reserves, according to OGJ estimates. This is up marginally from 87.2 % of total world oil reserves in 1992. The top 20 had 87.7 % of total world reserves in 1991 and 85.5 % in 1990. The table lists company name, total assets, revenues, net income, capital and exploratory expenditures, worldwide oil production, gas production, oil and gas reserves worldwide.

  16. Bubble nucleation in simple and molecular liquids via the largest spherical cavity method

    SciTech Connect (OSTI)

    Gonzalez, Miguel A.; Abascal, José L. F.; Valeriani, Chantal; Bresme, Fernando

    2015-04-21

    In this work, we propose a methodology to compute bubble nucleation free energy barriers using trajectories generated via molecular dynamics simulations. We follow the bubble nucleation process by means of a local order parameter, defined by the volume of the largest spherical cavity (LSC) formed in the nucleating trajectories. This order parameter simplifies considerably the monitoring of the nucleation events, as compared with the previous approaches which require ad hoc criteria to classify the atoms and molecules as liquid or vapor. The combination of the LSC and the mean first passage time technique can then be used to obtain the free energy curves. Upon computation of the cavity distribution function the nucleation rate and free-energy barrier can then be computed. We test our method against recent computations of bubble nucleation in simple liquids and water at negative pressures. We obtain free-energy barriers in good agreement with the previous works. The LSC method provides a versatile and computationally efficient route to estimate the volume of critical bubbles the nucleation rate and to compute bubble nucleation free-energies in both simple and molecular liquids.

  17. Lessons Learned in Deploying the World s Largest Scale Lustre File System

    SciTech Connect (OSTI)

    Dillow, David A; Fuller, Douglas; Wang, Feiyi; Oral, H Sarp; Zhang, Zhe; Hill, Jason J; Shipman, Galen M

    2010-01-01

    The Spider system at the Oak Ridge National Laboratory's Leadership Computing Facility (OLCF) is the world's largest scale Lustre parallel file system. Envisioned as a shared parallel file system capable of delivering both the bandwidth and capacity requirements of the OLCF's diverse computational environment, the project had a number of ambitious goals. To support the workloads of the OLCF's diverse computational platforms, the aggregate performance and storage capacity of Spider exceed that of our previously deployed systems by a factor of 6x - 240 GB/sec, and 17x - 10 Petabytes, respectively. Furthermore, Spider supports over 26,000 clients concurrently accessing the file system, which exceeds our previously deployed systems by nearly 4x. In addition to these scalability challenges, moving to a center-wide shared file system required dramatically improved resiliency and fault-tolerance mechanisms. This paper details our efforts in designing, deploying, and operating Spider. Through a phased approach of research and development, prototyping, deployment, and transition to operations, this work has resulted in a number of insights into large-scale parallel file system architectures, from both the design and the operational perspectives. We present in this paper our solutions to issues such as network congestion, performance baselining and evaluation, file system journaling overheads, and high availability in a system with tens of thousands of components. We also discuss areas of continued challenges, such as stressed metadata performance and the need for file system quality of service alongside with our efforts to address them. Finally, operational aspects of managing a system of this scale are discussed along with real-world data and observations.

  18. U.S. gasoline prices continue to increase; west coast has largest week-to-week increase (long version)

    Gasoline and Diesel Fuel Update (EIA)

    2, 2015 U.S. gasoline prices continue to increase; west coast has largest week-to- week increase (long version) The U.S. average retail price for regular gasoline rose to $2.47 a gallon on Monday. That's up 14.1 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.13 a gallon, up 37.2 cents from a week ago marking the largest week-to-week increase in this region since EIA's weekly survey of

  19. Department of Energy Completes Demolition of K-33 Building- Largest Completed Demo Project in Oak Ridge History

    Broader source: Energy.gov [DOE]

    OAK RIDGE, Tenn. - The U.S. Department of Energys Oak Ridge Environmental Management (EM) program recently completed its largest demolition project to date. The removal of K-33, a former gaseous diffusion uranium enrichment facility spanning 32-acres, was completed several months ahead of schedule. The American Recovery and Reinvestment Act funded the $51 million project.

  20. Star formation histories across the interacting galaxy NGC 6872, the largest-known spiral

    SciTech Connect (OSTI)

    Eufrasio, Rafael T.; De Mello, Duilia F.; Dwek, Eli; Arendt, Richard G.; Benford, Dominic J.; Gadotti, Dimitri A.; Urrutia-Viscarra, Fernanda; De Oliveira, Claudia Mendes

    2014-11-01

    NGC 6872, hereafter the Condor, is a large spiral galaxy that is interacting with its closest companion, the S0 galaxy IC 4970. The extent of the Condor provides an opportunity for detailed investigation of the impact of the interaction on the current star formation rate and its history across the galaxy, on the age and spatial distribution of its stellar population, and on the mechanism that drives the star formation activity. To address these issues we analyzed the far-ultraviolet (FUV) to near-infrared (near-IR) spectral energy distribution of seventeen 10 kpc diameter regions across the galaxy, and derived their star formation history, current star formation rate, and stellar population and mass. We find that most of the star formation takes place in the extended arms, with very little star formation in the central 5 kpc of the galaxy, in contrast to what was predicted from previous numerical simulations. There is a trend of increasing star formation activity with distance from the nucleus of the galaxy, and no evidence for a recent increase in the current star formation rate due to the interaction. The nucleus itself shows no significant current star formation activity. The extent of the Condor also provides an opportunity to test the applicability of a single standard prescription for conversion of the FUV + IR (22 ?m) intensities to a star formation rate for all regions. We find that the conversion factor differs from region to region, arising from regional differences in the stellar populations.

  1. Single event mass spectrometry

    DOE Patents [OSTI]

    Conzemius, Robert J. (Ames, IA)

    1990-01-16

    A means and method for single event time of flight mass spectrometry for analysis of specimen materials. The method of the invention includes pulsing an ion source imposing at least one pulsed ion onto the specimen to produce a corresponding emission of at least one electrically charged particle. The emitted particle is then dissociated into a charged ion component and an uncharged neutral component. The ion and neutral components are then detected. The time of flight of the components are recorded and can be used to analyze the predecessor of the components, and therefore the specimen material. When more than one ion particle is emitted from the specimen per single ion impact, the single event time of flight mass spectrometer described here furnis This invention was made with Government support under Contract No. W-7405-ENG82 awarded by the Department of Energy. The Government has certain rights in the invention.

  2. PPO Single

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

    40,001 to 80,000 58.50 105.50 122.50 169.50 80,001 to 120,000* 63.50 113.50 132.50 182.50 More than 120,000 77.50 139.00 162.00 223.50 HDHP Single Adult +...

  3. 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.

  4. PPO Single

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

    PPO Single Adult + Children Two Adults Family Salary range less than or = $40,000 $53.50 $96.00 $112.00 $154.50 $40,001 to $80,000 $58.50 $105.50 $122.50 $169.50 $80,001 to $120,000* $63.50 $113.50 $132.50 $182.50 More than $120,000 $77.50 $139.00 $162.00 $223.50 HDHP Single Adult + Children Two Adults Family Salary range less than or = $40,000 $38.50 $69.00 $80.50 $111.00 $40,001 to $80,000 $42.50 $75.50 $88.50 $121.50 $80,001 to $120,000* $45.50 $81.00 $95.00 $131.00 More than $120,000 $55.50

  5. Light Source

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

    a Light Source Data and Analysis Framework at NERSC Jack Deslippe, Shane Canon, Eli Dart, Abdelilah Essiari, Alexander Hexemer, Dula Parkinson, Simon Patton, Craig Tull + Many More The ALS Data Needs September 21, 2010 - NIST (MD) Light source data volumes are growing many times faster than Moore's law. ● Light source luminosity ● Detector resolution & rep-rates ● Sample automation BES user facilities serve 10,000 scientists and engineers every year. Mostly composed of many small

  6. Ion source

    DOE Patents [OSTI]

    Leung, Ka-Ngo (Hercules, CA); Ehlers, Kenneth W. (Alamo, CA)

    1984-01-01

    A magnetic filter for an ion source reduces the production of undesired ion species and improves the ion beam quality. High-energy ionizing electrons are confined by the magnetic filter to an ion source region, where the high-energy electrons ionize gas molecules. One embodiment of the magnetic filter uses permanent magnets oriented to establish a magnetic field transverse to the direction of travel of ions from the ion source region to the ion extraction region. In another embodiment, low energy 16 eV electrons are injected into the ion source to dissociate gas molecules and undesired ion species into desired ion species.

  7. National impacts of the Weatherization Assistance Program in single-family and small multifamily dwellings

    SciTech Connect (OSTI)

    Brown, M.A.; Berry, L.G.; Balzer, R.A.; Faby, E.

    1993-05-01

    Since 1976, the US Department of Energy (DOE) has operated one of the largest energy conservation programs in the nation -- the low-income Weatherization Assistance Program. The program strives to increase the energy efficiency of dwellings occupied by low-income persons in order to reduce their energy consumption, lower their fuel bills, increase the comfort of their homes, and safeguard their health. It targets vulnerable groups including the elderly, people with disabilities, and families with children. The most recent national evaluation of the impacts of the Program was completed in 1984 based on energy consumption data for households weatherized in 1981. DOE Program regulations and operations have changed substantially since then: new funding sources, management principles, diagnostic procedures, and weatherization technologies have been incorporated. Many of these new features have been studied in isolation or at a local level; however, no recent evaluation has assessed their combined, nationwide impacts to date or their potential for the future. In 1990, DOE initiated such an evaluation. This evaluation is comprised of three ``impact`` studies (the Single-Family Study, High-Density Multifamily Study, and Fuel-Oil Study) and two ``policy`` studies. Altogether, these five studies will provide a comprehensive national assessment of the Weatherization Assistance Program as it existed in the 1989 Program Year (PY 1989). This report presents the results of the first phase of the Single-Family Study. It evaluates the energy savings and cost effectiveness of the Program as it has been applied to the largest portion of its client base -- low-income households that occupy single-family dwellings, mobile homes, and small (2- to 4-unit) multifamily dwellings. It is based upon a representative national sample that covers the full range of conditions under which the program was implemented in PY 1989.

  8. Power sources manufactures association : power technology roadmap workshop - 2006.

    SciTech Connect (OSTI)

    Bowers, John S.

    2006-03-01

    The Power Sources Manufacturers Association (PSMA) is pleased to announce the release of the latest Power Technology Roadmap Workshop Report. This Fifth Edition Workshop Report includes presentations and discussions from the workshop as seen by the participants that included many of the industry's most influential members representing end-users, power supply manufacturers, component suppliers, consultants and academia. This report provides detailed projections for the next three to four years of various technologies in a quantitative form. There was special emphasis on how the increasing use of digital technologies will affect the industry in the next four years. The technology trend analysis and the roadmap is provided for the following specific product families expected to be the areas of largest market growth: (1) Ac-dc front end power supplies--1 kW from a single phase ac source; (2) External ac-dc power supplies; (3) Dc-dc bus converters; and (4) Non-isolated dc-dc converters. Bruce Miller, Chairman of PSMA, stated that 'the Power Technology Roadmap Workshop Report is an extensive document that analyzes and provides projections for most major technical parameters for a specific power supply. It is a unique document as it contains technology/parametric trends in a roadmap fashion from a variety of diverse sources, giving significant depth to its content. No such information is available from any other source'. The Power Technology Roadmap Workshop Report is available at no cost as to PSMA Regular and Associate members and at a reduced price to Affiliate members as a benefit of membership. The report will be offered to non-members at a price of $2490. For further information or to buy a copy of the report, please visit the publications page or the PSMA website or contact the Association Office.

  9. The increased concentration of SO{sub 2} and threat to the largest mangrove forest of the world - the Sundarbans

    SciTech Connect (OSTI)

    Ahmad, J.U.; Ullah, S.S.; Carmichael, G.R.; Haque, R.

    1996-12-31

    The atmospheric concentration of SO{sub 2} was monitored in two different sites, Khulna and Savar in Bangladesh as a part of Rains Asia Atmos Module, Phase I Project. The results show that the winter concentration of SO{sub 2} in Khulna is 3 to 4 times higher than the summer concentrations, which is also higher compared to measurements at Savar which is adjacent to Dhaka city. Based on these facts and seasonal wind pattern, trans-boundary air pollution has been suggested. Khulna is in the southwestern part of Bangladesh and this area harbors the largest mangrove forest of the world, the Sundarbans. Sundari trees are the main trees of the Sundarban ecosystem. During the last few years, many of the Sundari trees, which are quite susceptible to pH stress, are dying from the top. The unusual winter increase of atmospheric sulphurdioxide has been assigned to be one of the reasons for the top dying. Other factors might be the increase of salinity and diminished flow of water.

  10. Focused X-ray source

    DOE Patents [OSTI]

    Piestrup, M.A.; Boyers, D.G.; Pincus, C.I.; Maccagno, P.

    1990-08-21

    Disclosed is an intense, relatively inexpensive X-ray source (as compared to a synchrotron emitter) for technological, scientific, and spectroscopic purposes. A conical radiation pattern produced by a single foil or stack of foils is focused by optics to increase the intensity of the radiation at a distance from the conical radiator. 8 figs.

  11. Focused X-ray source

    DOE Patents [OSTI]

    Piestrup, Melvin A. (Woodside, CA); Boyers, David G. (Mountain View, CA); Pincus, Cary I. (Sunnyvale, CA); Maccagno, Pierre (Stanford, CA)

    1990-01-01

    An intense, relatively inexpensive X-ray source (as compared to a synchrotron emitter) for technological, scientific, and spectroscopic purposes. A conical radiation pattern produced by a single foil or stack of foils is focused by optics to increase the intensity of the radiation at a distance from the conical radiator.

  12. Controlling NOx emission from industrial sources

    SciTech Connect (OSTI)

    Srivastava, R.K.; Nueffer, W.; Grano, D.; Khan, S.; Staudt, J.E.; Jozewicz, W.

    2005-07-01

    A number of regulatory actions focused on reducing NOx emissions from stationary combustion sources have been taken in the United States in the last decade. These actions include the Acid Rain NOx regulations, the Ozone Transport Commission's NOx Budget Program, and the NOx SIP Call rulemakings. In addition to these regulations, the recent Interstate Air Quality Rulemaking proposal and other bills in the Congress are focusing on additional reductions of NOx. Industrial combustion sources accounted for about 18016 of NOx emissions in the United States in 2000 and constituted the second largest emitting source category within stationary sources, only behind electric utility sources. Based on these data, reduction of NOx emissions from industrial combustion sources is an important consideration in efforts undertaken to address the environmental concerns associated with NOx. This paper discusses primary and secondary NOx control technologies applicable to various major categories of industrial sources. The sources considered in this paper include large boilers, furnaces and fired heaters, combustion turbines, large IC engines, and cement kilns. For each source category considered in this paper, primary NOx controls are discussed first, followed by a discussion of secondary NOx controls.

  13. Radiation source

    DOE Patents [OSTI]

    Thode, Lester E. (Los Alamos, NM)

    1981-01-01

    A device and method for relativistic electron beam heating of a high-density plasma in a small localized region. A relativistic electron beam generator or accelerator produces a high-voltage electron beam which propagates along a vacuum drift tube and is modulated to initiate electron bunching within the beam. The beam is then directed through a low-density gas chamber which provides isolation between the vacuum modulator and the relativistic electron beam target. The relativistic beam is then applied to a high-density target plasma which typically comprises DT, DD, or similar thermonuclear gas at a density of 10.sup.17 to 10.sup.20 electrons per cubic centimeter. The target gas is ionized prior to application of the relativistic electron beam by means of a laser or other preionization source to form a plasma. Utilizing a relativistic electron beam with an individual particle energy exceeding 3 MeV, classical scattering by relativistic electrons passing through isolation foils is negligible. As a result, relativistic streaming instabilities are initiated within the high-density target plasma causing the relativistic electron beam to efficiently deposit its energy into a small localized region of the high-density plasma target.

  14. Largest Producer of Steel Products in the United States Achieves Significant Energy Savings at its Minntac Plant; Industrial Technologies Program (ITP) Save Energy Now (SEN) Case Study (Brochure)

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

    Located at Mt. Iron on the Mesabi Iron Range in northern Minnesota, the U. S. Steel Minntac plant produces approxi- mately 14.5 million tons of taconite pellets annually. Largest Producer of Steel Products in the United States Achieves Significant Energy Savings at its Minntac Plant U. S. Steel's Taconite Pellet Manufacturing Facility Improves Process Heating Efficiency and Rejuvenates Energy Savings Strategy Following Save Energy Now Assessment Industrial Technologies Program Case Study

  15. SOURCE PHENOMENOLOGY EXPERIMENTS IN ARIZONA

    SciTech Connect (OSTI)

    Jessie L. Bonner; Brian Stump; Mark Leidig; Heather Hooper; Xiaoning Yang; Rongmao Zhou; Tae Sung Kim; William R. Walter; Aaron Velasco; Chris Hayward; Diane Baker; C. L. Edwards; Steven Harder; Travis Glenn; Cleat Zeiler; James Britton; James F. Lewkowicz

    2005-09-30

    The Arizona Source Phenomenology Experiments (SPE) have resulted in an important dataset for the nuclear monitoring community. The 19 dedicated single-fired explosions and multiple delay-fired mining explosions were recorded by one of the most densely instrumented accelerometer and seismometer arrays ever fielded, and the data have already proven useful in quantifying confinement and excitation effects for the sources. It is very interesting to note that we have observed differences in the phenomenology of these two series of explosions resulting from the differences between the relatively slow (limestone) and fast (granodiorite) media. We observed differences at the two SPE sites in the way the rock failed during the explosions, how the S-waves were generated, and the amplitude behavior as a function of confinement. Our consortium's goal is to use the synergy of the multiple datasets collected during this experiment to unravel the phenomenological differences between the two emplacement media. The data suggest that the main difference between single-fired chemical and delay-fired mining explosion seismograms at regional distances is the increased surface wave energy for the latter source type. The effect of the delay-firing is to decrease the high-frequency P-wave amplitudes while increasing the surface wave energy because of the longer source duration and spall components. The results suggest that the single-fired explosions are surrogates for nuclear explosions in higher frequency bands (e.g., 6-8 Hz Pg/Lg discriminants). We have shown that the SPE shots, together with the mining explosions, are efficient sources of S-wave energy, and our next research stage is to postulate the possible sources contributing to the shear-wave energy.

  16. Thulium-170 heat source

    DOE Patents [OSTI]

    Walter, Carl E. (Pleasanton, CA); Van Konynenburg, Richard (Livermore, CA); VanSant, James H. (Tracy, CA)

    1992-01-01

    An isotopic heat source is formed using stacks of thin individual layers of a refractory isotopic fuel, preferably thulium oxide, alternating with layers of a low atomic weight diluent, preferably graphite. The graphite serves several functions: to act as a moderator during neutron irradiation, to minimize bremsstrahlung radiation, and to facilitate heat transfer. The fuel stacks are inserted into a heat block, which is encased in a sealed, insulated and shielded structural container. Heat pipes are inserted in the heat block and contain a working fluid. The heat pipe working fluid transfers heat from the heat block to a heat exchanger for power conversion. Single phase gas pressure controls the flow of the working fluid for maximum heat exchange and to provide passive cooling.

  17. Fortran 90 Source Module

    Energy Science and Technology Software Center (OSTI)

    1998-01-13

    A major advance contained in the new Fortran 90 language standard is the ability to define new data types and the operators associated with them. Writing computer code to implement computations with real and complex three domensional vectors and dyadics is greatly simplified if the equations can be implemented directly, without the need to code the vector arithmetic explicitly. The Fortran 90 module VECTORS contains source code which defines new data types for real andmore » complex 3-dimensional vectors and dyadics, along with the common operations needed to work with these objects. Routines to allow convenient initalization and output of the new types are also included. in keeping with the philosophy of data abstraction, the details of the implementation of the data types are maintained private, and the functions and operators are made generic to simplify the combining of real, complex, single and double precision vectors and dyadics.« less

  18. Contaminant Sources are Known

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

    Sources are Known Historical contaminant sources from liquid discharges and solid waste management units are known. August 1, 2013 Contaminant source map LANL contaminant...

  19. Single-bunch synchrotron shutter

    DOE Patents [OSTI]

    Norris, James R.; Tang, Jau-Huei; Chen, Lin; Thurnauer, Marion

    1993-01-01

    An apparatus for selecting a single synchrotron pulse from the millions of pulses provided per second from a synchrotron source includes a rotating spindle located in the path of the synchrotron pulses. The spindle has multiple faces of a highly reflective surface, and having a frequency of rotation f. A shutter is spaced from the spindle by a radius r, and has an open position and a closed position. The pulses from the synchrotron are reflected off the spindle to the shutter such that the speed s of the pulses at the shutter is governed by: s=4.times..pi..times.r.times.f. such that a single pulse is selected for transmission through an open position of the shutter.

  20. Multilevel cascade voltage source inverter with seperate DC sources

    DOE Patents [OSTI]

    Peng, Fang Zheng (Oak Ridge, TN); Lai, Jih-Sheng (Knoxville, TN)

    1997-01-01

    A multilevel cascade voltage source inverter having separate DC sources is described herein. This inverter is applicable to high voltage, high power applications such as flexible AC transmission systems (FACTS) including static VAR generation (SVG), power line conditioning, series compensation, phase shifting and voltage balancing and fuel cell and photovoltaic utility interface systems. The M-level inverter consists of at least one phase wherein each phase has a plurality of full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with only one switching per cycle as the number of levels, M, is increased. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations.

  1. Multilevel cascade voltage source inverter with seperate DC sources

    DOE Patents [OSTI]

    Peng, Fang Zheng; Lai, Jih-Sheng

    2001-04-03

    A multilevel cascade voltage source inverter having separate DC sources is described herein. This inverter is applicable to high voltage, high power applications such as flexible AC transmission systems (FACTS) including static VAR generation (SVG), power line conditioning, series compensation, phase shifting and voltage balancing and fuel cell and photovoltaic utility interface systems. The M-level inverter consists of at least one phase wherein each phase has a plurality of full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with only one switching per cycle as the number of levels, M, is increased. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations.

  2. Multilevel cascade voltage source inverter with seperate DC sources

    DOE Patents [OSTI]

    Peng, Fang Zheng (Knoxville, TN); Lai, Jih-Sheng (Blacksburg, VA)

    2002-01-01

    A multilevel cascade voltage source inverter having separate DC sources is described herein. This inverter is applicable to high voltage, high power applications such as flexible AC transmission systems (FACTS) including static VAR generation (SVG), power line conditioning, series compensation, phase shifting and voltage balancing and fuel cell and photovoltaic utility interface systems. The M-level inverter consists of at least one phase wherein each phase has a plurality of full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with only one switching per cycle as the number of levels, M, is increased. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations.

  3. Multilevel cascade voltage source inverter with separate DC sources

    DOE Patents [OSTI]

    Peng, F.Z.; Lai, J.S.

    1997-06-24

    A multilevel cascade voltage source inverter having separate DC sources is described herein. This inverter is applicable to high voltage, high power applications such as flexible AC transmission systems (FACTS) including static VAR generation (SVG), power line conditioning, series compensation, phase shifting and voltage balancing and fuel cell and photovoltaic utility interface systems. The M-level inverter consists of at least one phase wherein each phase has a plurality of full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with only one switching per cycle as the number of levels, M, is increased. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations. 15 figs.

  4. Contaminant Sources are Known

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

    Contaminant Sources are Known Contaminant Sources are Known Historical contaminant sources from liquid discharges and solid waste management units are known. August 1, 2013 Contaminant source map LANL contaminant source map RELATED IMAGES http://farm4.staticflickr.com/3789/9631743884_4caeb970f9_t.jpg Enlarge

  5. Successful Completion of the Largest Shipment of Russian Research Reactor High-Enriched Uranium Spent Nuclear Fuel from Czech Republic to Russian Federation

    SciTech Connect (OSTI)

    Michael Tyacke; Dr. Igor Bolshinsky; Jeff Chamberlin

    2008-07-01

    On December 8, 2007, the largest shipment of high-enriched uranium spent nuclear fuel was successfully made from a Russian-designed nuclear research reactor in the Czech Republic to the Russian Federation. This accomplishment is the culmination of years of planning, negotiations, and hard work. The United States, Russian Federation, and the International Atomic Energy Agency have been working together on the Russian Research Reactor Fuel Return (RRRFR) Program in support of the Global Threat Reduction Initiative. In February 2003, RRRFR Program representatives met with the Nuclear Research Institute in Re, Czech Republic, and discussed the return of their high-enriched uranium spent nuclear fuel to the Russian Federation for reprocessing. Nearly 5 years later, the shipment was made. This paper discusses the planning, preparations, coordination, and cooperation required to make this important international shipment.

  6. Electrolytes for power sources

    DOE Patents [OSTI]

    Doddapaneni, Narayan; Ingersoll, David

    1995-01-01

    Electrolytes for power sources, particularly alkaline and acidic power sources, comprising benzene polysulfonic acids and benzene polyphosphonic acids or salts of such acids.

  7. Electrolytes for power sources

    DOE Patents [OSTI]

    Doddapaneni, N.; Ingersoll, D.

    1995-01-03

    Electrolytes are disclosed for power sources, particularly alkaline and acidic power sources, comprising benzene polysulfonic acids and benzene polyphosphonic acids or salts of such acids. 7 figures.

  8. System and method for single-phase, single-stage grid-interactive inverter

    DOE Patents [OSTI]

    Liu, Liming; Li, Hui

    2015-09-01

    The present invention provides for the integration of distributed renewable energy sources/storages utilizing a cascaded DC-AC inverter, thereby eliminating the need for a DC-DC converter. The ability to segment the energy sources and energy storages improves the maintenance capability and system reliability of the distributed generation system, as well as achieve wide range reactive power compensation. In the absence of a DC-DC converter, single stage energy conversion can be achieved to enhance energy conversion efficiency.

  9. Flexible feature interface for multimedia sources

    DOE Patents [OSTI]

    Coffland, Douglas R. (Livermore, CA)

    2009-06-09

    A flexible feature interface for multimedia sources system that includes a single interface for the addition of features and functions to multimedia sources and for accessing those features and functions from remote hosts. The interface utilizes the export statement: export "C" D11Export void FunctionName(int argc, char ** argv,char * result, SecureSession *ctrl) or the binary equivalent of the export statement.

  10. Single casing reheat turbine

    SciTech Connect (OSTI)

    Matsushima, Tatsuro; Nishimura, Shigeo

    1999-07-01

    For conventional power plants, regenerative reheat steam turbines have been accepted as the most practical method to meet the demand for efficient and economical power generation. Recently the application of reheat steam turbines for combined cycle power plant began according to the development of large-capacity high temperature gas turbine. The two casing double flow turbine has been applied for this size of reheat steam turbine. The single casing reheat turbine can offer economical and compact power plant. Through development of HP-LP combined rotor and long LP blading series, Mitsubishi Heavy Industries, Ltd. had developed a single casing reheat steam turbine series and began to use it in actual plants. Six units are already in operation and another seven units are under manufacturing. Multiple benefits of single casing reheat turbine are smaller space requirements, shorter construction and erection period, equally good performance, easier operation and maintenance, shorter overhaul period, smaller initial investment, lower transportation expense and so on. Furthermore, single exhaust steam turbine makes possible to apply axial exhaust type, which will lower the height of T/G foundation and T/G housing. The single casing reheat turbine has not only compact and economical configuration itself but also it can reduce the cost of civil construction. In this paper, major developments and design features of the single casing reheat turbine are briefly discussed and operating experience, line-up and technical consideration for performance improvement are presented.

  11. DC source assemblies

    DOE Patents [OSTI]

    Campbell, Jeremy B; Newson, Steve

    2013-02-26

    Embodiments of DC source assemblies of power inverter systems of the type suitable for deployment in a vehicle having an electrically grounded chassis are provided. An embodiment of a DC source assembly comprises a housing, a DC source disposed within the housing, a first terminal, and a second terminal. The DC source also comprises a first capacitor having a first electrode electrically coupled to the housing, and a second electrode electrically coupled to the first terminal. The DC source assembly further comprises a second capacitor having a first electrode electrically coupled to the housing, and a second electrode electrically coupled to the second terminal.

  12. Single-exciton nanocrystal laser

    DOE Patents [OSTI]

    Klimov, Victor I. (Los Alamos, NM); Ivanov, Sergei A. (Albuquerque, NM)

    2012-01-17

    A laser system employing amplification via a single exciton regime and to optical gain media having single exciton amplification is provided.

  13. Tapered fiber coupling of single photons emitted by a deterministically positioned single nitrogen vacancy center

    SciTech Connect (OSTI)

    Liebermeister, Lars Petersen, Fabian; Münchow, Asmus v.; Burchardt, Daniel; Hermelbracht, Juliane; Tashima, Toshiyuki; Schell, Andreas W.; Benson, Oliver; Meinhardt, Thomas; Krueger, Anke; Stiebeiner, Ariane; Rauschenbeutel, Arno; Weinfurter, Harald; Weber, Markus

    2014-01-20

    A diamond nano-crystal hosting a single nitrogen vacancy (NV) center is optically selected with a confocal scanning microscope and positioned deterministically onto the subwavelength-diameter waist of a tapered optical fiber (TOF) with the help of an atomic force microscope. Based on this nano-manipulation technique, we experimentally demonstrate the evanescent coupling of single fluorescence photons emitted by a single NV-center to the guided mode of the TOF. By comparing photon count rates of the fiber-guided and the free-space modes and with the help of numerical finite-difference time domain simulations, we determine a lower and upper bound for the coupling efficiency of (9.5 ± 0.6)% and (10.4 ± 0.7)%, respectively. Our results are a promising starting point for future integration of single photon sources into photonic quantum networks and applications in quantum information science.

  14. Jefferson Lab Builds First Single Crystal Single Cell Accelerating Cavity |

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

    Jefferson Lab Single Cell Cavity This single cell cavity was made from a single crystal of niobium. Made in the same shape as the low-loss design proposed as an improvement to the baseline for the International Linear Collider (ILC), this cavity performs much better than the ILC design goal. Jefferson Lab Builds First Single Crystal Single Cell Accelerating Cavity May 18, 2005 Jefferson Lab's Institute for Superconducting Radiofrequency Science & Technology has, for the first time,

  15. Jefferson Lab Builds First Single Crystal Single Cell Accelerating Cavity |

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

    Jefferson Lab Single Cell Cavity This single cell cavity was made from a single crystal of niobium. Made in the same shape as the low-loss design proposed as an improvement to the baseline for the International Linear Collider (ILC), this cavity performs much better than the ILC design goal. Jefferson Lab Builds First Single Crystal Single Cell Accelerating Cavity Jefferson Lab's Institute for Superconducting Radiofrequency Science & Technology has, for the first time, successfully

  16. Single rotor turbine engine

    DOE Patents [OSTI]

    Platts, David A. (Los Alamos, NM)

    2002-01-01

    There has been invented a turbine engine with a single rotor which cools the engine, functions as a radial compressor, pushes air through the engine to the ignition point, and acts as an axial turbine for powering the compressor. The invention engine is designed to use a simple scheme of conventional passage shapes to provide both a radial and axial flow pattern through the single rotor, thereby allowing the radial intake air flow to cool the turbine blades and turbine exhaust gases in an axial flow to be used for energy transfer. In an alternative embodiment, an electric generator is incorporated in the engine to specifically adapt the invention for power generation. Magnets are embedded in the exhaust face of the single rotor proximate to a ring of stationary magnetic cores with windings to provide for the generation of electricity. In this alternative embodiment, the turbine is a radial inflow turbine rather than an axial turbine as used in the first embodiment. Radial inflow passages of conventional design are interleaved with radial compressor passages to allow the intake air to cool the turbine blades.

  17. Microwave ion source

    DOE Patents [OSTI]

    Leung, Ka-Ngo; Reijonen, Jani; Thomae, Rainer W.

    2005-07-26

    A compact microwave ion source has a permanent magnet dipole field, a microwave launcher, and an extractor parallel to the source axis. The dipole field is in the form of a ring. The microwaves are launched from the middle of the dipole ring using a coaxial waveguide. Electrons are heated using ECR in the magnetic field. The ions are extracted from the side of the source from the middle of the dipole perpendicular to the source axis. The plasma density can be increased by boosting the microwave ion source by the addition of an RF antenna. Higher charge states can be achieved by increasing the microwave frequency. A xenon source with a magnetic pinch can be used to produce intense EUV radiation.

  18. Laser ion source with solenoid field

    SciTech Connect (OSTI)

    Kanesue, Takeshi Okamura, Masahiro; Fuwa, Yasuhiro; Kondo, Kotaro

    2014-11-10

    Pulse length extension of highly charged ion beam generated from a laser ion source is experimentally demonstrated. The laser ion source (LIS) has been recognized as one of the most powerful heavy ion source. However, it was difficult to provide long pulse beams. By applying a solenoid field (90?mT, 1?m) at plasma drifting section, a pulse length of carbon ion beam reached 3.2??s which was 4.4 times longer than the width from a conventional LIS. The particle number of carbon ions accelerated by a radio frequency quadrupole linear accelerator was 1.2??10{sup 11}, which was provided by a single 1?J Nd-YAG laser shot. A laser ion source with solenoid field could be used in a next generation heavy ion accelerator.

  19. Laser ion source with solenoid field

    SciTech Connect (OSTI)

    Kanesue, Takeshi; Fuwa, Yasuhiro; Kondo, Kotaro; Okamura, Masahiro

    2014-11-12

    Pulse length extension of highly charged ion beam generated from a laser ion source is experimentally demonstrated. In this study, the laser ion source (LIS) has been recognized as one of the most powerful heavy ion source. However, it was difficult to provide long pulse beams. By applying a solenoid field (90 mT, 1 m) at plasma drifting section, a pulse length of carbon ion beam reached 3.2 ?s which was 4.4 times longer than the width from a conventional LIS. The particle number of carbon ions accelerated by a radio frequency quadrupole linear accelerator was 1.2 1011, which was provided by a single 1 J Nd-YAG laser shot. A laser ion source with solenoid field could be used in a next generation heavy ion accelerator.

  20. Laser ion source with solenoid field

    SciTech Connect (OSTI)

    Kanesue, Takeshi; Fuwa, Yasuhiro; Kondo, Kotaro; Okamura, Masahiro

    2014-11-10

    Pulse length extension of highly charged ion beam generated from a laser ion source is experimentally demonstrated. The laser ion source (LIS) has been recognized as one of the most powerful heavy ion source. However, it was difficult to provide long pulse beams. By applying a solenoid field (90 mT, 1 m) at plasma drifting section, a pulse length of carbon ion beam reached 3.2 ?s which was 4.4 times longer than the width from a conventional LIS. The particle number of carbon ions accelerated by a radio frequency quadrupole linear accelerator was 1.2 1011, which was provided by a single 1 J Nd-YAG laser shot. A laser ion source with solenoid field could be used in a next generation heavy ion accelerator.

  1. Laser ion source with solenoid field

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

    Kanesue, Takeshi; Fuwa, Yasuhiro; Kondo, Kotaro; Okamura, Masahiro

    2014-11-12

    Pulse length extension of highly charged ion beam generated from a laser ion source is experimentally demonstrated. In this study, the laser ion source (LIS) has been recognized as one of the most powerful heavy ion source. However, it was difficult to provide long pulse beams. By applying a solenoid field (90 mT, 1 m) at plasma drifting section, a pulse length of carbon ion beam reached 3.2 μs which was 4.4 times longer than the width from a conventional LIS. The particle number of carbon ions accelerated by a radio frequency quadrupole linear accelerator was 1.2 × 1011, whichmore » was provided by a single 1 J Nd-YAG laser shot. A laser ion source with solenoid field could be used in a next generation heavy ion accelerator.« less

  2. Open Source Software

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

    Open Source Software Open Source Software All open source software available through the Laboratory is listed below. Contact thumbnail of Kathleen McDonald Head of Intellectual Property, Business Development Executive Kathleen McDonald Richard P. Feynman Center for Innovation (505) 667-5844 Email For more information regarding how to access software from Los Alamos, contact the Software Team. brulilo, Version 0.x brulilo is a Python package for building and evolving thermonuclear reaction

  3. Dynamic radioactive particle source

    DOE Patents [OSTI]

    Moore, Murray E.; Gauss, Adam Benjamin; Justus, Alan Lawrence

    2012-06-26

    A method and apparatus for providing a timed, synchronized dynamic alpha or beta particle source for testing the response of continuous air monitors (CAMs) for airborne alpha or beta emitters is provided. The method includes providing a radioactive source; placing the radioactive source inside the detection volume of a CAM; and introducing an alpha or beta-emitting isotope while the CAM is in a normal functioning mode.

  4. Renewable energy generation sources...

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

    energy generation sources have begun to generate significant amounts of power for the national electricity grid. With the Molten Salt Test Loop (MSTL), Sandia and its industry ...

  5. SOURCE SELECTION INFORMATION -

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

    SOURCE SELECTION INFORMATION - SEE FEDERAL ACQUISITION REGULATION (FAR) 2.101 AND 3.104 Department of Energy Washington, DC 20585 (enter date here, centered revised template...

  6. Overview | Advanced Photon Source

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

    APS Overview: Introduction APS Systems Map LINAC Booster Synchrotron Storage Ring Insertion Devices Experiment Hall LOMs & Beamlines Overview of the APS The Advanced Photon Source...

  7. Heat Source Lire,

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

    A uniquely capable source of power is the radioisotope thermoelectric generator (RTG) - ... The new RTG, called a Multi-Mission Radioisotope Thermoelectric Generator (MMRTG), is ...

  8. Improved ion source

    DOE Patents [OSTI]

    Leung, K.N.; Ehlers, K.W.

    1982-05-04

    A magnetic filter for an ion source reduces the production of undesired ion species and improves the ion beam quality. High-energy ionizing electrons are confined by the magnetic filter to an ion source region, where the high-energy electrons ionize gas molecules. One embodiment of the magnetic filter uses permanent magnets oriented to establish a magnetic field transverse to the direction of travel of ions from the ion source region to the ion extraction region. In another embodiment, low energy 16 eV electrons are injected into the ion source to dissociate gas molecules and undesired ion species into desired ion species,

  9. Beamlines | Advanced Photon Source

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

    Beamlines Beamlines Home Beamlines Directory Research Techniques Sectors Directory Status and Schedule Safety and Training Beamlines The Advanced Photon Source consists of 34...

  10. Unidentified Gamma-Ray Sources: Hunting Gamma-Ray Blazars

    SciTech Connect (OSTI)

    Massaro, F.; D'Abrusco, R.; Tosti, G.; Ajello, M.; Gasparrini, A.Paggi.D.

    2012-04-02

    One of the main scientific objectives of the ongoing Fermi mission is unveiling the nature of the unidentified {gamma}-ray sources (UGSs). Despite the large improvements of Fermi in the localization of {gamma}-ray sources with respect to the past {gamma}-ray missions, about one third of the Fermi-detected objects are still not associated to low energy counterparts. Recently, using the Wide-field Infrared Survey Explorer (WISE) survey, we discovered that blazars, the rarest class of Active Galactic Nuclei and the largest population of {gamma}-ray sources, can be recognized and separated from other extragalactic sources on the basis of their infrared (IR) colors. Based on this result, we designed an association method for the {gamma}-ray sources to recognize if there is a blazar candidate within the positional uncertainty region of a generic {gamma}-ray source. With this new IR diagnostic tool, we searched for {gamma}-ray blazar candidates associated to the UGS sample of the second Fermi {gamma}-ray catalog (2FGL). We found that our method associates at least one {gamma}-ray blazar candidate as a counterpart each of 156 out of 313 UGSs analyzed. These new low-energy candidates have the same IR properties as the blazars associated to {gamma}-ray sources in the 2FGL catalog.

  11. Radiation Source Replacement Workshop

    SciTech Connect (OSTI)

    Griffin, Jeffrey W.; Moran, Traci L.; Bond, Leonard J.

    2010-12-01

    This report summarizes a Radiation Source Replacement Workshop in Houston Texas on October 27-28, 2010, which provided a forum for industry and researchers to exchange information and to discuss the issues relating to replacement of AmBe, and potentially other isotope sources used in well logging.

  12. Radioisotopic heat source

    DOE Patents [OSTI]

    Jones, G.J.; Selle, J.E.; Teaney, P.E.

    1975-09-30

    Disclosed is a radioisotopic heat source and method for a long life electrical generator. The source includes plutonium dioxide shards and yttrium or hafnium in a container of tantalum-tungsten-hafnium alloy, all being in a nickel alloy outer container, and subjected to heat treatment of from about 1570$sup 0$F to about 1720$sup 0$F for about one h. (auth)

  13. Piezotube borehole seismic source

    DOE Patents [OSTI]

    Daley, Tom M; Solbau, Ray D; Majer, Ernest L

    2014-05-06

    A piezoelectric borehole source capable of permanent or semipermanent insertion into a well for uninterrupted well operations is described. The source itself comprises a series of piezoelectric rings mounted to an insulative mandrel internally sized to fit over a section of well tubing, the rings encased in a protective housing and electrically connected to a power source. Providing an AC voltage to the rings will cause expansion and contraction sufficient to create a sonic pulse. The piezoelectric borehole source fits into a standard well, and allows for uninterrupted pass-through of production tubing, and other tubing and electrical cables. Testing using the source may be done at any time, even concurrent with well operations, during standard production.

  14. Photonic crystal light source

    DOE Patents [OSTI]

    Fleming, James G. (Albuquerque, NM); Lin, Shawn-Yu (Albuquerque, NM); Bur, James A. (Corrales, NM)

    2004-07-27

    A light source is provided by a photonic crystal having an enhanced photonic density-of-states over a band of frequencies and wherein at least one of the dielectric materials of the photonic crystal has a complex dielectric constant, thereby producing enhanced light emission at the band of frequencies when the photonic crystal is heated. The dielectric material can be a metal, such as tungsten. The spectral properties of the light source can be easily tuned by modification of the photonic crystal structure and materials. The photonic crystal light source can be heated electrically or other heating means. The light source can further include additional photonic crystals that exhibit enhanced light emission at a different band of frequencies to provide for color mixing. The photonic crystal light source may have applications in optical telecommunications, information displays, energy conversion, sensors, and other optical applications.

  15. SOURCE OF MICROBUNCHING AT BNL NSLS SOURCE DEVELOPMENT LABORATORY

    SciTech Connect (OSTI)

    Seletskiy, S.; Hidaka, Y.; Murphy, J.B.; Podobedov, B.; Qian, H.; Shen, Y.; Wang, J.; Yang, X.

    2011-03-28

    We report experimental studies of the origins of electron beam microbunching instability at BNL Source Development Laboratory (SDL). We eliminated laser-induced microbunching by utilizing an ultra-short photocathode laser. The measurements of the resulting electron beam led us to conclude that, at SDL, microbunching arising from shot noise is not amplified to any significant level. Our results demonstrated that the only source of microbunching instability at SDL is the longitudinal modulation of the photocathode laser pulse. Our work shows that assuring a longitudinally smoothed photocathode laser pulse allows mitigating microbunching instability at a typical FEL injector with a moderate microbunching gain. In this paper we investigated the source of microbunching instability at the SDL. To distinguish microbunching induced by shot noise from that arising from the longitudinal modulation of the photocathode laser, we studied the beam created by a very short laser pulse, thus eliminating the possibility of laser-induced microbunching. While the measured energy spectra of compressed beam did reveal severe longitudinal fragmentation, an analysis of the beam dynamics proved this to be due to self-fields acting on a beam with an initially smooth longitudinal profile, and not due to microbunching instability. Such fragmentation only was possible with the very short bunch chosen for these studies, and is absent in routine SDL operations. Our experiment shows that in the absence of the initial laser-induced beam modulation, microbunching instability at the SDL is not observed, and must be well below the levels that would limit the FEL performance. This result agrees with assumption of previous SDL studies that (when present under different machine conditions) microbunching instability at the SDL was laser-induced. Microbunching instability gain at the SDL is moderate. This is mainly because the SDL utilizes a single stage bunch compressor as well as due to the small compression ratio. Since the design of the SDL injector is typical of the majority of FEL injectors, our experiment proves that one possible way to control microbunching instability in such machines (that by design have a moderate microbunching gain) is to maintain a sufficiently smooth longitudinal profile of the photo-cathode laser. We note that the general principles for designing a machine with a moderate microbunching instability gain are presented in [12]. In conclusion, our experiment demonstrates that microbunching instability can be eliminated from a typical FEL injector with single stage bunch compressor (and operating without a laser heater) as long as the photocathode laser is longitudinally smooth. For machines with multi-stage bunch compressors, our results offer an important benchmark to establish a minimal laser heater power for instability-free operation.

  16. Source Selection | Department of Energy

    Energy Savers [EERE]

    Source Selection Source Selection Source Selection/Source Selection Boards Source Evaluation Board (SEB) Monthly Status Reporting Requirement (pdf) Source Evaluation Board (SEB) Secretariat and Knowledge Manager - Acquisition Guide Chapter 1.4 (pdf) Acquisition Planning - Acquisition Guide Chapter 7.1 (pdf) Source Selection Practices - Acquisition Guide Chapter 15.1 (pdf) Headquarters Business Clearance Process - Acquisition Guide Chapter 71.1 Templates Source Selection Board Lessons Learned

  17. Tunable terahertz radiation source

    DOE Patents [OSTI]

    Boulaevskii, Lev; Feldmann, David M; Jia, Quanxi; Koshelev, Alexei; Moody, Nathan A

    2014-01-21

    Terahertz radiation source and method of producing terahertz radiation, said source comprising a junction stack, said junction stack comprising a crystalline material comprising a plurality of self-synchronized intrinsic Josephson junctions; an electrically conductive material in contact with two opposing sides of said crystalline material; and a substrate layer disposed upon at least a portion of both the crystalline material and the electrically-conductive material, wherein the crystalline material has a c-axis which is parallel to the substrate layer, and wherein the source emits at least 1 mW of power.

  18. Microfabricated diffusion source

    DOE Patents [OSTI]

    Oborny, Michael C. (Albuquerque, NM); Frye-Mason, Gregory C. (Cedar Crest, NM); Manginell, Ronald P. (Albuquerque, NM)

    2008-07-15

    A microfabricated diffusion source to provide for a controlled diffusion rate of a vapor comprises a porous reservoir formed in a substrate that can be filled with a liquid, a headspace cavity for evaporation of the vapor therein, a diffusion channel to provide a controlled diffusion of the vapor, and an outlet to release the vapor into a gas stream. The microfabricated diffusion source can provide a calibration standard for a microanalytical system. The microanalytical system with an integral diffusion source can be fabricated with microelectromechanical systems technologies.

  19. Black carbon emissions from Russian diesel sources. Case study of Murmansk

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

    Evans, M.; Kholod, N.; Malyshev, V.; Tretyakova, S.; Gusev, E.; Yu, S.; Barinov, A.

    2015-07-27

    Black carbon (BC) is a potent pollutant because of its effects on climate change, ecosystems and human health. Black carbon has a particularly pronounced impact as a climate forcer in the Arctic because of its effect on snow albedo and cloud formation. We have estimated BC emissions from diesel sources in the Murmansk Region and Murmansk City, the largest city in the world above the Arctic Circle. In this study we developed a detailed inventory of diesel sources including on-road vehicles, off-road transport (mining, locomotives, construction and agriculture), ships and diesel generators. For on-road transport, we conducted several surveys tomore » understand the vehicle fleet and driving patterns, and, for all sources, we also relied on publicly available local data sets and analysis. We calculated that BC emissions in the Murmansk Region were 0.40 Gg in 2012. The mining industry is the largest source of BC emissions in the region, emitting 69 % of all BC emissions because of its large diesel consumption and absence of emissions controls. On-road vehicles are the second largest source, emitting about 13 % of emissions. Old heavy duty trucks are the major source of emissions. Emission controls on new vehicles limit total emissions from on-road transportation. Vehicle traffic and fleet surveys show that many of the older cars on the registry are lightly or never used. We also estimated that total BC emissions from diesel sources in Russia were 50.8 Gg in 2010, and on-road transport contributed 49 % of diesel BC emissions. Agricultural machinery is also a significant source Russia-wide, in part because of the lack of controls on off-road vehicles.« less

  20. Black carbon emissions from Russian diesel sources. Case study of Murmansk

    SciTech Connect (OSTI)

    Evans, M.; Kholod, N.; Malyshev, V.; Tretyakova, S.; Gusev, E.; Yu, S.; Barinov, A.

    2015-07-27

    Black carbon (BC) is a potent pollutant because of its effects on climate change, ecosystems and human health. Black carbon has a particularly pronounced impact as a climate forcer in the Arctic because of its effect on snow albedo and cloud formation. We have estimated BC emissions from diesel sources in the Murmansk Region and Murmansk City, the largest city in the world above the Arctic Circle. In this study we developed a detailed inventory of diesel sources including on-road vehicles, off-road transport (mining, locomotives, construction and agriculture), ships and diesel generators. For on-road transport, we conducted several surveys to understand the vehicle fleet and driving patterns, and, for all sources, we also relied on publicly available local data sets and analysis. We calculated that BC emissions in the Murmansk Region were 0.40 Gg in 2012. The mining industry is the largest source of BC emissions in the region, emitting 69 % of all BC emissions because of its large diesel consumption and absence of emissions controls. On-road vehicles are the second largest source, emitting about 13 % of emissions. Old heavy duty trucks are the major source of emissions. Emission controls on new vehicles limit total emissions from on-road transportation. Vehicle traffic and fleet surveys show that many of the older cars on the registry are lightly or never used. We also estimated that total BC emissions from diesel sources in Russia were 50.8 Gg in 2010, and on-road transport contributed 49 % of diesel BC emissions. Agricultural machinery is also a significant source Russia-wide, in part because of the lack of controls on off-road vehicles.

  1. National Synchrotron Light Source

    ScienceCinema (OSTI)

    None

    2010-01-08

    A tour of Brookhaven's National Synchrotron Light Source (NSLS). The NSLS is one of the world's most widely used scientific research facilities, hosting more than 2,500 guest researchers each year. The NSLS provides intense beams of infrared, ultraviole

  2. SOURCE SELECTION INFORMATION -

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

    an action described in Section 311 of P.L. 112-74 in excess of 1,000,000. This information is source selection information related to the conduct of a Federal agency...

  3. National Synchrotron Light Source

    ScienceCinema (OSTI)

    BNL

    2009-09-01

    A tour of Brookhaven's National Synchrotron Light Source (NSLS), hosted by Associate Laboratory Director for Light Sources, Stephen Dierker. The NSLS is one of the world's most widely used scientific research facilities, hosting more than 2,500 guest researchers each year. The NSLS provides intense beams of infrared, ultraviolet, and x-ray light for basic and applied research in physics, chemistry, medicine, geophysics, environmental, and materials sciences.

  4. Field emission electron source

    DOE Patents [OSTI]

    Zettl, Alexander Karlwalter (Kensington, CA); Cohen, Marvin Lou (Berkeley, CA)

    2000-01-01

    A novel field emitter material, field emission electron source, and commercially feasible fabrication method is described. The inventive field emission electron source produces reliable electron currents of up to 400 mA/cm.sup.2 at 200 volts. The emitter is robust and the current it produces is not sensitive to variability of vacuum or the distance between the emitter tip and the cathode. The novel emitter has a sharp turn-on near 100 volts.

  5. Magnetron sputtering source

    DOE Patents [OSTI]

    Makowiecki, Daniel M. (Livermore, WA); McKernan, Mark A. (Livermore, CA); Grabner, R. Fred (Brentwood, CA); Ramsey, Philip B. (Livermore, CA)

    1994-01-01

    A magnetron sputtering source for sputtering coating substrates includes a high thermal conductivity electrically insulating ceramic and magnetically attached sputter target which can eliminate vacuum sealing and direct fluid cooling of the cathode assembly. The magnetron sputtering source design results in greater compactness, improved operating characteristics, greater versatility, and low fabrication cost. The design easily retrofits most sputtering apparatuses and provides for safe, easy, and cost effective target replacement, installation, and removal.

  6. Magnetron sputtering source

    DOE Patents [OSTI]

    Makowiecki, D.M.; McKernan, M.A.; Grabner, R.F.; Ramsey, P.B.

    1994-08-02

    A magnetron sputtering source for sputtering coating substrates includes a high thermal conductivity electrically insulating ceramic and magnetically attached sputter target which can eliminate vacuum sealing and direct fluid cooling of the cathode assembly. The magnetron sputtering source design results in greater compactness, improved operating characteristics, greater versatility, and low fabrication cost. The design easily retrofits most sputtering apparatuses and provides for safe, easy, and cost effective target replacement, installation, and removal. 12 figs.

  7. Photon Source Parameters

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

    Photon Source Parameters Photon Source Parameters Print Summary Graph of Brightness Curves for All Insertion Devices Insertion Device and Bend Magnet Parameters Bend Magnet Superbend Magnet U30 Undulator U50 Undulator U80 Undulator U100 Undulator W114 Wiggler The ALS has six elliptically polarizing undulators, two in straight 4, two in straight 11, and one each in straights 6 and 7. All are arranged with chicanes so that two such devices can be installed to feed two independent beamlines. They

  8. Advanced Light Source

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

    Next >> Visitors Access to the ALS Gate Access guest-house Guest House lab-shuttles Lab Shuttles maps-and-directions Maps and Directions Parking Safety Experiment Safety safety-for-staff Safety for Staff In Case of Emergency Resources Acronyms Multimedia Employment staff-intranet Staff Intranet Site Map Contact Digg: ALSBerkeleyLab Facebook Page: 208064938929 Flickr: advancedlightsource Twitter: AdvLightSource YouTube: AdvancedLightSource Recent Science Highlights Manganese

  9. Method and device for measuring single-shot transient signals

    DOE Patents [OSTI]

    Yin, Yan

    2004-05-18

    Methods, apparatus, and systems, including computer program products, implementing and using techniques for measuring multi-channel single-shot transient signals. A signal acquisition unit receives one or more single-shot pulses from a multi-channel source. An optical-fiber recirculating loop reproduces the one or more received single-shot optical pulses to form a first multi-channel pulse train for circulation in the recirculating loop, and a second multi-channel pulse train for display on a display device. The optical-fiber recirculating loop also optically amplifies the first circulating pulse train to compensate for signal losses and performs optical multi-channel noise filtration.

  10. A bright PPKTP waveguide source of polarization entangled photons

    SciTech Connect (OSTI)

    Fanto, Michael; Tison, Christoper C.; Holwand, Gregory A; Preble, Dr. Stefan F; Alsing, Paul; Smith IV, Amos M

    2015-01-01

    The need for bright efficient sources of entangled photons has been a subject of tremendous research over the last decade. Researchers have been working to increase the brightness and purity to help overcome the spontaneous nature of the sources. Periodic poling has been implemented to allow for the use of crystals that would not normally satisfy the phase matching conditions. Utilizing periodic poling and single mode waveguide confinement of the pump field has yielded extremely large effective nonlinearities in sources easily producing millions of photon pairs. Here we will demonstrate these large nonlinearity effects in a periodically poled potassium titanyl phosphate (PPKTP) waveguide as well as characterizing the source purity.

  11. Pulsed ion beam source

    DOE Patents [OSTI]

    Greenly, J.B.

    1997-08-12

    An improved pulsed ion beam source is disclosed having a new biasing circuit for the fast magnetic field. This circuit provides for an initial negative bias for the field created by the fast coils in the ion beam source which pre-ionize the gas in the source, ionize the gas and deliver the gas to the proper position in the accelerating gap between the anode and cathode assemblies in the ion beam source. The initial negative bias improves the interaction between the location of the nulls in the composite magnetic field in the ion beam source and the position of the gas for pre-ionization and ionization into the plasma as well as final positioning of the plasma in the accelerating gap. Improvements to the construction of the flux excluders in the anode assembly are also accomplished by fabricating them as layered structures with a high melting point, low conductivity material on the outsides with a high conductivity material in the center. 12 figs.

  12. Dual source heat pump

    DOE Patents [OSTI]

    Ecker, Amir L.; Pietsch, Joseph A.

    1982-01-01

    What is disclosed is a heat pump apparatus for conditioning a fluid characterized by a fluid handler and path for circulating the fluid in heat exchange relationship with a refrigerant fluid; at least two refrigerant heat exchangers, one for effecting heat exchange with the fluid and a second for effecting heat exchange between refrigerant and a heat exchange fluid and the ambient air; a compressor for efficiently compressing the refrigerant; at least one throttling valve for throttling liquid refrigerant; a refrigerant circuit; refrigerant; a source of heat exchange fluid; heat exchange fluid circulating device and heat exchange fluid circuit for circulating the heat exchange fluid in heat exchange relationship with the refrigerant; and valves or switches for selecting the heat exchangers and direction of flow of the refrigerant therethrough for selecting a particular mode of operation. The heat exchange fluid provides energy for defrosting the second heat exchanger when operating in the air source mode and also provides a alternate source of heat.

  13. Plasma Sources Sci. Technol.

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

    Sources Sci. Technol. 6 (1997) 492-498. Printed in the UK PII: S0963-0252(97)87196-4 Impurities, temperature and density in a miniature electrostatic plasma and current source D J Den Hartog†, D J Craig†, G Fiksel‡ and J S Sarff‡ † Department of Physics, University of Wisconsin-Madison, 1150 University Avenue, Madison, WI 53706, USA ‡ Sterling Scientific, Inc., 1415 Rutledge Street, Madison, WI 53703, USA Received 23 October 1996, in final form 25 July 1997 Abstract. We have

  14. OLED area illumination source

    DOE Patents [OSTI]

    Foust, Donald Franklin (Scotia, NY); Duggal, Anil Raj (Niskayuna, NY); Shiang, Joseph John (Niskayuna, NY); Nealon, William Francis (Gloversville, NY); Bortscheller, Jacob Charles (Clifton Park, NY)

    2008-03-25

    The present invention relates to an area illumination light source comprising a plurality of individual OLED panels. The individual OLED panels are configured in a physically modular fashion. Each OLED panel comprising a plurality of OLED devices. Each OLED panel comprises a first electrode and a second electrode such that the power being supplied to each individual OLED panel may be varied independently. A power supply unit capable of delivering varying levels of voltage simultaneously to the first and second electrodes of each of the individual OLED panels is also provided. The area illumination light source also comprises a mount within which the OLED panels are arrayed.

  15. Integrated Synthesis of the Permian Basin: Data and Models for Recovering Existing and Undiscovered Oil Resources from the Largest Oil-Bearing Basin in the U.S.

    SciTech Connect (OSTI)

    John Jackson; Katherine Jackson

    2008-09-30

    Large volumes of oil and gas remain in the mature basins of North America. This is nowhere more true than in the Permian Basin of Texas and New Mexico. A critical barrier to recovery of this vast remaining resource, however, is information. Access to accurate geological data and analyses of the controls of hydrocarbon distribution is the key to the knowledge base as well as the incentives needed by oil and gas companies. The goals of this project were to collect, analyze, synthesize, and deliver to industry and the public fundamental information and data on the geology of oil and gas systems in the Permian Basin. This was accomplished in two ways. First we gathered all available data, organized it, and placed it on the web for ready access. Data include core analysis data, lists of pertinent published reports, lists of available cores, type logs, and selected PowerPoint presentations. We also created interpretive data such as type logs, geological cross sections, and geological maps and placed them in a geospatially-registered framework in ARC/GIS. Second, we created new written syntheses of selected reservoir plays in the Permian basin. Although only 8 plays were targeted for detailed analysis in the project proposal to DOE, 14 were completed. These include Ellenburger, Simpson, Montoya, Fusselman, Wristen, Thirtyone, Mississippian, Morrow, Atoka, Strawn, Canyon/Cisco, Wolfcamp, Artesia Group, and Delaware Mountain Group. These fully illustrated reports include critical summaries of published literature integrated with new unpublished research conducted during the project. As such these reports provide the most up-to-date analysis of the geological controls on reservoir development available. All reports are available for download on the project website and are also included in this final report. As stated in our proposal, technology transfer is perhaps the most important component of the project. In addition to providing direct access to data and reports through the web, we published 29 papers dealing with aspects of Permian Basin and Fort Worth Basin Paleozoic geology, and gave 35 oral and poster presentations at professional society meetings, and 116 oral and poster presentations at 10 project workshops, field trips, and short courses. These events were attended by hundreds of scientists and engineers representing dozens of oil and gas companies. This project and the data and interpretations that have resulted from it will serve industry, academic, and public needs for decades to come. It will be especially valuable to oil and gas companies in helping to better identify opportunities for development and exploration and reducing risk. The website will be continually added to and updated as additional data and information become available making it a long term source of key information for all interested in better understanding the Permian Basin.

  16. Sealed Radioactive Source Accountability

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

    1991-12-24

    To establish Department of Energy (DOE) interim policy and to provide guidance for sealed radioactive source accountability. The directive does not cancel any directives. Extended by DOE N 5400.10 to 12-24-93 & Extended by DOE N 5400.12 to 12-24-94.

  17. Sealed Radioactive Source Accountability

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

    1994-12-22

    This Notice extends DOE N 5400.9, Sealed Radioactive Source Accountability, of 12-24-91, until 12-24-95, unless sooner superseded or rescinded. The contents of DOE N 5400.9 will be updated and incorporated in the revised DOE O 5480.11, Radiation Protection for Occupational Workers.

  18. Selective ion source

    DOE Patents [OSTI]

    Leung, K.N.

    1996-05-14

    A ion source is described wherein selected ions maybe extracted to the exclusion of unwanted ion species of higher ionization potential. Also described is a method of producing selected ions from a compound, such as P{sup +} from PH{sub 3}. The invention comprises a plasma chamber, an electron source, a means for introducing a gas to be ionized by electrons from the electron source, means for limiting electron energy from the electron source to a value between the ionization energy of the selected ion species and the greater ionization energy of an unwanted ion specie, and means for extracting the target ion specie from the plasma chamber. In one embodiment, the electrons are generated in a plasma cathode chamber immediately adjacent to the plasma chamber. A small extractor draws the electrons from the plasma cathode chamber into the relatively positive plasma chamber. The energy of the electrons extracted in this manner is easily controlled. The invention is particularly useful for doping silicon with P{sup +}, As{sup +}, and B{sup +} without the problematic presence of hydrogen, helium, water, or carbon oxide ions. Doped silicon is important for manufacture of semiconductors and semiconductor devices. 6 figs.

  19. Selective ion source

    DOE Patents [OSTI]

    Leung, Ka-Ngo (Hercules, CA)

    1996-01-01

    A ion source is described wherein selected ions maybe extracted to the exclusion of unwanted ion species of higher ionization potential. Also described is a method of producing selected ions from a compound, such as P.sup.+ from PH.sub.3. The invention comprises a plasma chamber, an electron source, a means for introducing a gas to be ionized by electrons from the electron source, means for limiting electron energy from the electron source to a value between the ionization energy of the selected ion species and the greater ionization energy of an unwanted ion specie, and means for extracting the target ion specie from the plasma chamber. In one embodiment, the electrons are generated in a plasma cathode chamber immediately adjacent to the plasma chamber. A small extractor draws the electrons from the plasma cathode chamber into the relatively positive plasma chamber. The energy of the electrons extracted in this manner is easily controlled. The invention is particularly useful for doping silicon with P.sup.+, AS.sup.+, and B.sup.+ without the problematic presence of hydrogen, helium, water, or carbon oxide ions. Doped silicon is important for manufacture of semiconductors and semiconductor devices.

  20. Dual echelon femtosecond single-shot spectroscopy

    SciTech Connect (OSTI)

    Shin, Taeho; Wolfson, Johanna W.; Teitelbaum, Samuel W.; Kandyla, Maria; Nelson, Keith A.

    2014-08-15

    We have developed a femtosecond single-shot spectroscopic technique to measure irreversible changes in condensed phase materials in real time. Crossed echelons generate a two-dimensional array of time-delayed pulses with one femtosecond probe pulse. This yields 9 ps of time-resolved data from a single laser shot, filling a gap in currently employed measurement methods. We can now monitor ultrafast irreversible dynamics in solid-state materials or other samples that cannot be flowed or replenished between laser shots, circumventing limitations of conventional pump-probe methods due to sample damage or product buildup. Despite the absence of signal-averaging in the single-shot measurement, an acceptable signal-to-noise level has been achieved via background and reference calibration procedures. Pump-induced changes in relative reflectivity as small as 0.2%?0.5% are demonstrated in semimetals, with both electronic and coherent phonon dynamics revealed by the data. The optical arrangement and the space-to-time conversion and calibration procedures necessary to achieve this level of operation are described. Sources of noise and approaches for dealing with them are discussed.

  1. Self-seeded single-frequency laser peening method

    DOE Patents [OSTI]

    DAne, C.Brent; Hackey, Lloyd A.; Harris, Fritz B.

    2012-06-26

    A method of operating a laser to obtain an output pulse having a single wavelength, comprises inducing an intracavity loss into a laser resonator having an amount that prevents oscillation during a time that energy from the pump source is being stored in the gain medium. Gain is built up in the gain medium with energy from the pump source until formation of a single-frequency relaxation oscillation pulse in the resonator. Upon detection of the onset of the relaxation oscillation pulse, the intracavity loss is reduced, such as by Q-switching, so that the built-up gain stored in the gain medium is output from the resonator in the form of an output pulse at a single frequency. An electronically controllable output coupler is controlled to affect output pulse characteristics. The laser acts a master oscillator in a master oscillator power amplifier configuration. The laser is used for laser peening.

  2. Self-seeded single-frequency laser peening method

    DOE Patents [OSTI]

    Dane, C. Brent (Livermore, CA); Hackel, Lloyd (Livermore, CA); Harris, Fritz B. (Rocklin, CA)

    2009-08-11

    A method of operating a laser to obtain an output pulse having a single wavelength, comprises inducing an intracavity loss into a laser resonator having an amount that prevents oscillation during a time that energy from the pump source is being stored in the gain medium. Gain is built up in the gain medium with energy from the pump source until formation of a single-frequency relaxation oscillation pulse in the resonator. Upon detection of the onset of the relaxation oscillation pulse, the intracavity loss is reduced, such as by Q-switching, so that the built-up gain stored in the gain medium is output from the resonator in the form of an output pulse at a single frequency. An electronically controllable output coupler is controlled to affect output pulse characteristics. The laser acts a master oscillator in a master oscillator power amplifier configuration. The laser is used for laser peening.

  3. Light sources based on semiconductor current filaments

    DOE Patents [OSTI]

    Zutavern, Fred J.; Loubriel, Guillermo M.; Buttram, Malcolm T.; Mar, Alan; Helgeson, Wesley D.; O'Malley, Martin W.; Hjalmarson, Harold P.; Baca, Albert G.; Chow, Weng W.; Vawter, G. Allen

    2003-01-01

    The present invention provides a new type of semiconductor light source that can produce a high peak power output and is not injection, e-beam, or optically pumped. The present invention is capable of producing high quality coherent or incoherent optical emission. The present invention is based on current filaments, unlike conventional semiconductor lasers that are based on p-n junctions. The present invention provides a light source formed by an electron-hole plasma inside a current filament. The electron-hole plasma can be several hundred microns in diameter and several centimeters long. A current filament can be initiated optically or with an e-beam, but can be pumped electrically across a large insulating region. A current filament can be produced in high gain photoconductive semiconductor switches. The light source provided by the present invention has a potentially large volume and therefore a potentially large energy per pulse or peak power available from a single (coherent) semiconductor laser. Like other semiconductor lasers, these light sources will emit radiation at the wavelength near the bandgap energy (for GaAs 875 nm or near infra red). Immediate potential applications of the present invention include high energy, short pulse, compact, low cost lasers and other incoherent light sources.

  4. Filtered cathodic arc source

    DOE Patents [OSTI]

    Falabella, Steven (Livermore, CA); Sanders, David M. (Livermore, CA)

    1994-01-01

    A continuous, cathodic arc ion source coupled to a macro-particle filter capable of separation or elimination of macro-particles from the ion flux produced by cathodic arc discharge. The ion source employs an axial magnetic field on a cathode (target) having tapered sides to confine the arc, thereby providing high target material utilization. A bent magnetic field is used to guide the metal ions from the target to the part to be coated. The macro-particle filter consists of two straight solenoids, end to end, but placed at 45.degree. to one another, which prevents line-of-sight from the arc spot on the target to the parts to be coated, yet provides a path for ions and electrons to flow, and includes a series of baffles for trapping the macro-particles.

  5. Filtered cathodic arc source

    DOE Patents [OSTI]

    Falabella, S.; Sanders, D.M.

    1994-01-18

    A continuous, cathodic arc ion source coupled to a macro-particle filter capable of separation or elimination of macro-particles from the ion flux produced by cathodic arc discharge is described. The ion source employs an axial magnetic field on a cathode (target) having tapered sides to confine the arc, thereby providing high target material utilization. A bent magnetic field is used to guide the metal ions from the target to the part to be coated. The macro-particle filter consists of two straight solenoids, end to end, but placed at 45[degree] to one another, which prevents line-of-sight from the arc spot on the target to the parts to be coated, yet provides a path for ions and electrons to flow, and includes a series of baffles for trapping the macro-particles. 3 figures.

  6. Voltage controlled current source

    DOE Patents [OSTI]

    Casne, Gregory M. (Pittsburgh, PA)

    1992-01-01

    A seven decade, voltage controlled current source is described for use in testing intermediate range nuclear instruments that covers the entire test current range of from 10 picoamperes to 100 microamperes. High accuracy is obtained throughout the entire seven decades of output current with circuitry that includes a coordinated switching scheme responsive to the input signal from a hybrid computer to control the input voltage to an antilog amplifier, and to selectively connect a resistance to the antilog amplifier output to provide a continuous output current source as a function of a preset range of input voltage. An operator controlled switch provides current adjustment for operation in either a real-time simulation test mode or a time response test mode.

  7. Evaluated teletherapy source library

    DOE Patents [OSTI]

    Cox, Lawrence J.; Schach Von Wittenau, Alexis E.

    2000-01-01

    The Evaluated Teletherapy Source Library (ETSL) is a system of hardware and software that provides for maintenance of a library of useful phase space descriptions (PSDs) of teletherapy sources used in radiation therapy for cancer treatment. The PSDs are designed to be used by PEREGRINE, the all-particle Monte Carlo dose calculation system. ETSL also stores other relevant information such as monitor unit factors (MUFs) for use with the PSDs, results of PEREGRINE calculations using the PSDs, clinical calibration measurements, and geometry descriptions sufficient for calculational purposes. Not all of this information is directly needed by PEREGRINE. It also is capable of acting as a repository for the Monte Carlo simulation history files from which the generic PSDs are derived.

  8. Calibrated vapor generator source

    DOE Patents [OSTI]

    Davies, J.P.; Larson, R.A.; Goodrich, L.D.; Hall, H.J.; Stoddard, B.D.; Davis, S.G.; Kaser, T.G.; Conrad, F.J.

    1995-09-26

    A portable vapor generator is disclosed that can provide a controlled source of chemical vapors, such as, narcotic or explosive vapors. This source can be used to test and calibrate various types of vapor detection systems by providing a known amount of vapors to the system. The vapor generator is calibrated using a reference ion mobility spectrometer. A method of providing this vapor is described, as follows: explosive or narcotic is deposited on quartz wool, placed in a chamber that can be heated or cooled (depending on the vapor pressure of the material) to control the concentration of vapors in the reservoir. A controlled flow of air is pulsed over the quartz wool releasing a preset quantity of vapors at the outlet. 10 figs.

  9. Calibrated vapor generator source

    DOE Patents [OSTI]

    Davies, John P. (Idaho Falls, ID); Larson, Ronald A. (Idaho Falls, ID); Goodrich, Lorenzo D. (Shelley, ID); Hall, Harold J. (Idaho Falls, ID); Stoddard, Billy D. (Idaho Falls, ID); Davis, Sean G. (Idaho Falls, ID); Kaser, Timothy G. (Idaho Falls, ID); Conrad, Frank J. (Albuquerque, NM)

    1995-01-01

    A portable vapor generator is disclosed that can provide a controlled source of chemical vapors, such as, narcotic or explosive vapors. This source can be used to test and calibrate various types of vapor detection systems by providing a known amount of vapors to the system. The vapor generator is calibrated using a reference ion mobility spectrometer. A method of providing this vapor is described, as follows: explosive or narcotic is deposited on quartz wool, placed in a chamber that can be heated or cooled (depending on the vapor pressure of the material) to control the concentration of vapors in the reservoir. A controlled flow of air is pulsed over the quartz wool releasing a preset quantity of vapors at the outlet.

  10. Advanced Light Source

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

    Light Source - 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 Nuclear

  11. High current ion source

    DOE Patents [OSTI]

    Brown, Ian G. (1088 Woodside Rd., Berkeley, CA 94708); MacGill, Robert A. (645 Kern St., Richmond, CA 94805); Galvin, James E. (2 Commodore Dr. #276, Emeryville, CA 94608)

    1990-01-01

    An ion source utilizing a cathode and anode for producing an electric arc therebetween. The arc is sufficient to vaporize a portion of the cathode to form a plasma. The plasma leaves the generation region and expands through another regon. The density profile of the plasma may be flattened using a magnetic field formed within a vacuum chamber. Ions are extracted from the plasma to produce a high current broad on beam.

  12. Greenhouse Gas Source Attribution

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

    Greenhouse Gas Source Attribution - 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

  13. SOURCE SELECTION INFORMATION -

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

    SOURCE SELECTION INFORMATION - SEE FEDERAL ACQUISITION REGULATION (FAR) 2.101 AND 3.104 Department of Energy Washington, DC 20585 (enter date here, centered revised template January 24, 2013) The Honorable Harold Rogers The Honorable Barbara A. Mikulski Chairman, Committee on Appropriations Chairwoman, Committee on Appropriations U.S. House of Representatives U.S. Senate Washington, DC 20515 Washington, DC 20510 The Honorable Rodney P. Frelinghuysen The Honorable Dianne Feinstein Chairman,

  14. The European Spallation Source

    SciTech Connect (OSTI)

    Peggs, S; Eshraqi, M; Hahn, H; Jansson, A; Lindroos, M; Ponton, A; Rathsman, K; Trahern, G; Bousso, S; Calaga, R; Devanz, G; Duperrier, R D; Eguia, J; Gammino, S; Moller, S P; Oyon, C; Ruber, R.J.M.Y.

    2011-03-01

    The European Spallation Source (ESS) is a 5 MW, 2.5 GeV long pulse proton linac, to be built and commissioned in Lund, Sweden. The Accelerator Design Update (ADU) project phase is under way, to be completed at the end of 2012 by the delivery of a Technical Design Report. Improvements to the 2003 ESS design will be summarised, and the latest design activities will be presented.

  15. SOURCE SELECTION INFORMATION -

    Energy Savers [EERE]

    SOURCE SELECTION INFORMATION - SEE FEDERAL ACQUISITION REGULATION (FAR) 2.101 AND 3.104 Department of Energy Washington, DC 20585 (enter date here, centered revised template April 26, 2013) The Honorable Harold Rogers The Honorable Barbara A. Mikulski Chairman, Committee on Appropriations Chairwoman, Committee on Appropriations U.S. House of Representatives U.S. Senate Washington, DC 20515 Washington, DC 20510 The Honorable Rodney P. Frelinghuysen The Honorable Dianne Feinstein Chairman,

  16. Improved negative ion source

    DOE Patents [OSTI]

    Delmore, J.E.

    1984-05-01

    A method and apparatus for providing a negative ion source accelerates electrons away from a hot filament electron emitter into a region of crossed electric and magnetic fields arranged in a magnetron configuration. During a portion of the resulting cycloidal path, the electron velocity is reduced below its initial value. The electron accelerates as it leaves the surface at a rate of only slightly less than if there were no magnetic field, thereby preventing a charge buildup at the surface of the emitter. As the electron traverses the cycloid, it is decelerated during the second, third, and fourth quadrants, then reaccelerated as it approaches the end of the fourth quadrant to regain its original velocity. The minimum velocity occurs during the fourth quadrant, and corresponds to an electron temperature of 200 to 500/sup 0/C for the electric and magnetic fields commonly encountered in the ion sources of magnetic sector mass spectrometers. An ion source using the above-described thermalized electrons is also disclosed.

  17. Negative ion source

    DOE Patents [OSTI]

    Delmore, James E. (Idaho Falls, ID)

    1987-01-01

    A method and apparatus for providing a negative ion source accelerates electrons away from a hot filament electron emitter into a region of crossed electric and magnetic fields arranged in a magnetron configuration. During a portion of the resulting cycloidal path, the electron velocity is reduced below its initial value. The electron accelerates as it leaves the surface at a rate of only slightly less than if there were no magnetic field, thereby preventing a charge buildup at the surface of the emitter. As the electron traverses the cycloid, it is decelerated during the second, third, and fourth quadrants, then reeccelerated as it approaches the end of the fourth quadrant to regain its original velocity. The minimum velocity occurs during the fourth quadrant, and corresponds to an electron temperature of 200.degree. to 500.degree. for the electric and magnetic fields commonly encountered in the ion sources of magnetic sector mass spectrometers. An ion source using the above-described thermalized electrons is also disclosed.

  18. Capillary discharge source

    DOE Patents [OSTI]

    Bender, III, Howard Albert

    2003-11-25

    Debris generation from an EUV electric discharge plasma source device can be significantly reduced or essentially eliminated by encasing the electrodes with dielectric or electrically insulating material so that the electrodes are shielded from the plasma, and additionally by providing a path for the radiation to exit wherein the electrodes are not exposed to the area where the radiation is collected. The device includes: (a) a body, which is made of an electrically insulating material, that defines a capillary bore that has a proximal end and a distal end and that defines at least one radiation exit; (b) a first electrode that defines a first channel that has a first inlet end that is connected to a source of gas and a first outlet end that is in communication with the capillary bore, wherein the first electrode is positioned at the distal end of the capillary bore; (c) a second electrode that defines a second channel that has a second inlet end that is in communication with the capillary bore and an outlet end, wherein the second electrode is positioned at the proximal end of the capillary bore; and (d) a source of electric potential that is connected across the first and second electrodes, wherein radiation generated within the capillary bore is emitted through the at least one radiation exit and wherein the first electrode and second electrode are shielded from the emitted radiation.

  19. Arrangement, Dopant Source, And Method For Making Solar Cells

    DOE Patents [OSTI]

    Rohatgi, Ajeet (Marietta, GA); Krygowski, Thomas W. (Smyrna, GA)

    1999-10-26

    Disclosed is an arrangement, dopant source and method used in the fabrication of photocells that minimize handling of cell wafers and involve a single furnace step. First, dopant sources are created by depositing selected dopants onto both surfaces of source wafers. The concentration of dopant that is placed on the surface is relatively low so that the sources are starved sources. These sources are stacked with photocell wafers in alternating orientation in a furnace. Next, the temperature is raised and thermal diffusion takes place whereby the dopant leaves the source wafers and becomes diffused in a cell wafer creating the junctions necessary for photocells to operate. The concentration of dopant diffused into a single side of the cell wafer is proportional to the concentration placed on the respective dopant source facing the side of the cell wafer. Then, in the same thermal cycle, a layer of oxide is created by introducing oxygen into the furnace environment after sufficient diffusion has taken place. Finally, the cell wafers receive an anti-reflective coating and electrical contacts for the purpose of gathering electrical charge.

  20. Isolating and moving single atoms using silicon nanocrystals

    DOE Patents [OSTI]

    Carroll, Malcolm S. (Albuquerque, NM)

    2010-09-07

    A method is disclosed for isolating single atoms of an atomic species of interest by locating the atoms within silicon nanocrystals. This can be done by implanting, on the average, a single atom of the atomic species of interest into each nanocrystal, and then measuring an electrical charge distribution on the nanocrystals with scanning capacitance microscopy (SCM) or electrostatic force microscopy (EFM) to identify and select those nanocrystals having exactly one atom of the atomic species of interest therein. The nanocrystals with the single atom of the atomic species of interest therein can be sorted and moved using an atomic force microscope (AFM) tip. The method is useful for forming nanoscale electronic and optical devices including quantum computers and single-photon light sources.

  1. BERNAS ION SOURCE DISCHARGE SIMULATION

    SciTech Connect (OSTI)

    RUDSKOY,I.; KULEVOY, T.V.; PETRENKO, S.V.; KUIBEDA, R.P.; SELEZNEV, D.N.; PERSHIN, V.I.; HERSHCOVITCH, A.; JOHNSON, B.M.; GUSHENETS, V.I.; OKS, E.M.; POOLE, H.J.

    2007-08-26

    The joint research and development program is continued to develop steady-state ion source of decaborane beam for ion implantation industry. Bemas ion source is the wide used ion source for ion implantation industry. The new simulation code was developed for the Bemas ion source discharge simulation. We present first results of the simulation for several materials interested in semiconductors. As well the comparison of results obtained with experimental data obtained at the ITEP ion source test-bench is presented.

  2. Strategic Sourcing | Department of Energy

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

    Strategic Sourcing Strategic Sourcing Energy Wide Strategic Sourcing (EWSS) DOE leadership has recognized that benefits could be achieved at the federal level through an organized, systematic and collaborative approach to acquiring commonly used goods and services. The DOE strategic sourcing program builds upon historical accomplishments as well as establishes a more cohesive and disciplined program, consistent with OMB's direction, for the conduct of DOE future strategic sourcing efforts. The

  3. Energy Sources | Department of Energy

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

    Sources Energy Sources Renewable Energy Renewable Energy Learn more about energy from solar, wind, water, geothermal and biomass. Read more Nuclear Nuclear Learn more about how we use nuclear energy. Read more Electricity Electricity Learn more about how we use electricity as an energy source. Read more Fossil Fossil Learn more about our fossil energy sources: coal, oil and natural gas. Read more Primary energy sources take many forms, including nuclear energy, fossil energy -- like oil, coal

  4. Photon Source Parameters

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

    Photon Source Parameters Print Summary Graph of Brightness Curves for All Insertion Devices Insertion Device and Bend Magnet Parameters Bend Magnet Superbend Magnet U30 Undulator U50 Undulator U80 Undulator U100 Undulator W114 Wiggler The ALS has six elliptically polarizing undulators, two in straight 4, two in straight 11, and one each in straights 6 and 7. All are arranged with chicanes so that two such devices can be installed to feed two independent beamlines. They can be used in a variety

  5. Photon Source Parameters

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

    Photon Source Parameters Print Summary Graph of Brightness Curves for All Insertion Devices Insertion Device and Bend Magnet Parameters Bend Magnet Superbend Magnet U30 Undulator U50 Undulator U80 Undulator U100 Undulator W114 Wiggler The ALS has six elliptically polarizing undulators, two in straight 4, two in straight 11, and one each in straights 6 and 7. All are arranged with chicanes so that two such devices can be installed to feed two independent beamlines. They can be used in a variety

  6. Photon Source Parameters

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

    Photon Source Parameters Print Summary Graph of Brightness Curves for All Insertion Devices Insertion Device and Bend Magnet Parameters Bend Magnet Superbend Magnet U30 Undulator U50 Undulator U80 Undulator U100 Undulator W114 Wiggler The ALS has six elliptically polarizing undulators, two in straight 4, two in straight 11, and one each in straights 6 and 7. All are arranged with chicanes so that two such devices can be installed to feed two independent beamlines. They can be used in a variety

  7. Photon Source Parameters

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

    Photon Source Parameters Print Summary Graph of Brightness Curves for All Insertion Devices Insertion Device and Bend Magnet Parameters Bend Magnet Superbend Magnet U30 Undulator U50 Undulator U80 Undulator U100 Undulator W114 Wiggler The ALS has six elliptically polarizing undulators, two in straight 4, two in straight 11, and one each in straights 6 and 7. All are arranged with chicanes so that two such devices can be installed to feed two independent beamlines. They can be used in a variety

  8. Photon Source Parameters

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

    Photon Source Parameters Print Summary Graph of Brightness Curves for All Insertion Devices Insertion Device and Bend Magnet Parameters Bend Magnet Superbend Magnet U30 Undulator U50 Undulator U80 Undulator U100 Undulator W114 Wiggler The ALS has six elliptically polarizing undulators, two in straight 4, two in straight 11, and one each in straights 6 and 7. All are arranged with chicanes so that two such devices can be installed to feed two independent beamlines. They can be used in a variety

  9. Photon Source Parameters

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

    Photon Source Parameters Print Summary Graph of Brightness Curves for All Insertion Devices Insertion Device and Bend Magnet Parameters Bend Magnet Superbend Magnet U30 Undulator U50 Undulator U80 Undulator U100 Undulator W114 Wiggler The ALS has six elliptically polarizing undulators, two in straight 4, two in straight 11, and one each in straights 6 and 7. All are arranged with chicanes so that two such devices can be installed to feed two independent beamlines. They can be used in a variety

  10. Compact ion accelerator source

    DOE Patents [OSTI]

    Schenkel, Thomas; Persaud, Arun; Kapadia, Rehan; Javey, Ali

    2014-04-29

    An ion source includes a conductive substrate, the substrate including a plurality of conductive nanostructures with free-standing tips formed on the substrate. A conductive catalytic coating is formed on the nanostructures and substrate for dissociation of a molecular species into an atomic species, the molecular species being brought in contact with the catalytic coating. A target electrode placed apart from the substrate, the target electrode being biased relative to the substrate with a first bias voltage to ionize the atomic species in proximity to the free-standing tips and attract the ionized atomic species from the substrate in the direction of the target electrode.

  11. The 'world's largest' Inconel waterwall weld overlay

    SciTech Connect (OSTI)

    MacLean, K.; Fournier, E.; Gomez-Grande, J.; Scandroli, T.

    2009-11-15

    An 11,000 square foot Inconel 655 weld repaired severe wastage caused by low NOx firing with coal/petcoke at the Belledune generating station in New Brunswick, Canada. 1 ref., 1 fig., 3 photos.

  12. JEA successfully completes world's largest CFB demonstration

    SciTech Connect (OSTI)

    2005-09-30

    JEA (formerly the Jacksonville Electric Authority) has successfully completed an eighth year landmark demonstration project that continues in baseload commercial operation. It scales up atmospheric fluidized-bed technology demonstration to the near-300-MW size, providing important data on a technology that can achieve > 90% SO{sub 2} removal and 60% NOx reduction at relatively high efficiencies and at costs comparable to those of conventional pulverized coal plants. The article recounts the history of the project. Performance tests showed a blend of coal and petcoke were most efficient as a feedstock. 3 figs.

  13. Single nanoparticle tracking spectroscopic microscope

    DOE Patents [OSTI]

    Yang, Haw (Moraga, CA); Cang, Hu (Berkeley, CA); Xu, Cangshan (Berkeley, CA); Wong, Chung M. (San Gabriel, CA)

    2011-07-19

    A system that can maintain and track the position of a single nanoparticle in three dimensions for a prolonged period has been disclosed. The system allows for continuously imaging the particle to observe any interactions it may have. The system also enables the acquisition of real-time sequential spectroscopic information from the particle. The apparatus holds great promise in performing single molecule spectroscopy and imaging on a non-stationary target.

  14. Far off-resonant coupling between photonic crystal microcavity and single quantum dot with resonant excitation

    SciTech Connect (OSTI)

    Banihashemi, Mehdi; Ahmadi, Vahid, E-mail: v-ahmadi@modares.ac.ir [Department of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, P.O. Box 14115-194 (Iran, Islamic Republic of)] [Department of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, P.O. Box 14115-194 (Iran, Islamic Republic of); Nakamura, Tatsuya; Kojima, Takanori; Kojima, Kazunobu; Noda, Susumu [Department of Electronic Science and Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510 (Japan)] [Department of Electronic Science and Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510 (Japan)

    2013-12-16

    In this paper, we experimentally demonstrate that with sub-nanowatt coherent s-shell excitation of a single InAs quantum dot, off-resonant coupling of 4.1?nm is possible between L3 photonic crystal microcavity and the quantum dot at 50?K. This resonant excitation reduces strongly the effect of surrounding charges to quantum dot, multiexciton complexes and pure dephasing. It seems that this far off-resonant coupling is the result of increased number of acoustical phonons due to high operating temperature of 50?K. The 4.1?nm detuning is the largest amount for this kind of coupling.

  15. Manhattan Project: Sources and Notes

    Office of Scientific and Technical Information (OSTI)

    SOURCES AND NOTES Resources > Sources Below are the collected specific notes for the text and images used on the pages of this web site. For a discussion of the most important works on the Manhattan Project, see the "Suggested Readings." For a general discussion of the use of sources in this web site, see "A Note on Sources." To scan the sources and notes for various categories, choose from the list below. To view the sources and notes for a specific web page, see the

  16. Hanford single-shell tank grouping study

    SciTech Connect (OSTI)

    Remund, K.M.; Anderson, C.M.; Simpson, B.C.

    1995-10-01

    A tank grouping study has been conducted to find Hanford single-shell tanks with similar waste properties. The limited sampling resources of the characterization program could be allocated more effectively by having a better understanding of the groups of tanks that have similar waste types. If meaningful groups of tanks can be identified, tank sampling requirements may be reduced, and the uncertainty of the characterization estimates may be narrowed. This tank grouping study considers the analytical sampling information and the historical information that is available for all single-shell tanks. The two primary sources of historical characterization estimates and information come from the Historical Tank Content Estimate (HTCE) Model and the Sort on Radioactive Waste Tanks (SORWT) Model. The sampling and historical information are used together to come up with meaningful groups of similar tanks. Based on the results of analyses presented in this report, credible tank grouping looks very promising. Some groups defined using historical information (HTCE and SORWT) correspond well with those based on analytical data alone.

  17. Multiple source heat pump

    DOE Patents [OSTI]

    Ecker, Amir L. (Duncanville, TX)

    1983-01-01

    A heat pump apparatus for conditioning a fluid characterized by a fluid handler and path for circulating a fluid in heat exchange relationship with a refrigerant fluid, at least three refrigerant heat exchangers, one for effecting heat exchange with the fluid, a second for effecting heat exchange with a heat exchange fluid, and a third for effecting heat exchange with ambient air; a compressor for compressing the refrigerant; at least one throttling valve connected at the inlet side of a heat exchanger in which liquid refrigerant is vaporized; a refrigerant circuit; refrigerant; a source of heat exchange fluid; heat exchange fluid circuit and pump for circulating the heat exchange fluid in heat exchange relationship with the refrigerant; and valves or switches for selecting the heat exchangers and directional flow of refrigerant therethrough for selecting a particular mode of operation. Also disclosed are a variety of embodiments, modes of operation, and schematics therefor.

  18. Infrared source test

    SciTech Connect (OSTI)

    Ott, L.

    1994-11-15

    The purpose of the Infrared Source Test (IRST) is to demonstrate the ability to track a ground target with an infrared sensor from an airplane. The system is being developed within the Advance Technology Program`s Theater Missile Defense/Unmanned Aerial Vehicle (UAV) section. The IRST payload consists of an Amber Radiance 1 infrared camera system, a computer, a gimbaled mirror, and a hard disk. The processor is a custom R3000 CPU board made by Risq Modular Systems, Inc. for LLNL. The board has ethernet, SCSI, parallel I/O, and serial ports, a DMA channel, a video (frame buffer) interface, and eight MBytes of main memory. The real-time operating system VxWorks has been ported to the processor. The application code is written in C on a host SUN 4 UNIX workstation. The IRST is the result of a combined effort by physicists, electrical and mechanical engineers, and computer scientists.

  19. Single atom impurity in a single molecular transistor

    SciTech Connect (OSTI)

    Ray, S. J.

    2014-10-21

    The influence of an impurity atom on the electrostatic behaviour of a Single Molecular Transistor was investigated through Ab-initio calculations in a double-gated geometry. The charge stability diagram carries unique signature of the position of the impurity atom in such devices which together with the charging energy of the molecule could be utilised as an electronic fingerprint for the detection of such impurity states in a nano-electronic device. The two gated geometry allows additional control over the electrostatics as can be seen from the total energy surfaces (for a specific charge state), which is sensitive to the positions of the impurity. These devices which are operational at room temperature can provide significant advantages over the conventional silicon based single dopant devices functional at low temperature. The present approach could be a very powerful tool for the detection and control of individual impurity atoms in a single molecular device and for applications in future molecular electronics.

  20. Advanced Photon Source Upgrade Project

    ScienceCinema (OSTI)

    Mitchell, John; Gibson, Murray; Young, Linda; Joachimiak, Andrzej

    2013-04-19

    Upgrade to Advanced Photon Source announced by Department Of Energy. Read more: http://go.usa.gov/ivZ

  1. Development of a hydraulic borehole seismic source

    SciTech Connect (OSTI)

    Cutler, R.P.

    1998-04-01

    This report describes a 5 year, $10 million Sandia/Industry project to develop an advanced borehole seismic source for use in oil and gas exploration and production. The development Team included Sandia, Chevron, Amoco, Conoco, Exxon, Raytheon, Pelton, and GRI. The seismic source that was developed is a vertically oriented, axial point force, swept frequency, clamped, reaction-mass vibrator design. It was based on an early Chevron prototype, but the new tool incorporates a number of improvements which make it far superior to the original prototype. The system consists of surface control electronics, a special heavy duty fiber optic wireline and draw works, a cablehead, hydraulic motor/pump module, electronics module, clamp, and axial vibrator module. The tool has a peak output of 7,000 lbs force and a useful frequency range of 5 to 800 Hz. It can operate in fluid filled wells with 5.5-inch or larger casing to depths of 20,000 ft and operating temperatures of 170 C. The tool includes fiber optic telemetry, force and phase control, provisions to add seismic receiver arrays below the source for single well imaging, and provisions for adding other vibrator modules to the tool in the future. The project yielded four important deliverables: a complete advanced borehole seismic source system with all associated field equipment; field demonstration surveys funded by industry showing the utility of the system; industrial sources for all of the hardware; and a new service company set up by their industrial partner to provide commercial surveys.

  2. Single-electron detection and spectroscopy via relativistic cyclotron radiation

    SciTech Connect (OSTI)

    Asner, David M.; Bradley, Rich; De Viveiros Souza Filho, Luiz A.; Doe, Peter J.; Fernandes, Justin L.; Fertl, M.; Finn, Erin C.; Formaggio, Joseph; Furse, Daniel L.; Jones, Anthony M.; Kofron, Jared N.; LaRoque, Benjamin; Leber, Michelle; MCBride, Lisa; Miller, M. L.; Mohanmurthy, Prajwal T.; Monreal, Ben; Oblath, Noah S.; Robertson, R. G. H.; Rosenberg, Leslie; Rybka, Gray; Rysewyk, Devyn M.; Sternberg, Michael G.; Tedeschi, Jonathan R.; Thummler, Thomas; VanDevender, Brent A.; Woods, N. L.

    2015-04-01

    It has been understood since 1897 that accelerating charges should emit electromagnetic radiation. Cyclotron radiation, the particular form of radiation emitted by an electron orbiting in a magnetic field, was first derived in 1904. Despite the simplicity of this concept, and the enormous utility of electron spectroscopy in nuclear and particle physics, single-electron cyclotron radiation has never been observed directly. Here we demonstrate single-electron detection in a novel radiofrequency spectrometer. We observe the cyclotron radiation emitted by individual electrons that are produced with mildly-relativistic energies by a gaseous radioactive source and are magnetically trapped. The relativistic shift in the cyclotron frequency permits a precise electron energy measurement. Precise beta electron spectroscopy from gaseous radiation sources is a key technique in modern efforts to measure the neutrino mass via the tritium decay endpoint, and this work is a proof-of-concept for future neutrino mass experiments using this technique.

  3. Single crystal Processing and magnetic properties of gadolinium nickel

    SciTech Connect (OSTI)

    Shreve, Andrew John

    2012-11-02

    GdNi is a rare earth intermetallic material that exhibits very interesting magnetic properties. Spontaneous magnetostriction occurs in GdNi at T{sub C}, on the order of 8000ppm strain along the c-axis and only until very recently the mechanism causing this giant magnetostriction was not understood. In order to learn more about the electronic and magnetic structure of GdNi, single crystals are required for anisotropic magnetic property measurements. Single crystal processing is quite challenging for GdNi though since the rare-earth transition-metal composition yields a very reactive intermetallic compound. Many crystal growth methods are pursued in this study including crucible free methods, precipitation growths, and specially developed Bridgman crucibles. A plasma-sprayed Gd{sub 2}O{sub 3} W-backed Bridgman crucible was found to be the best means of GdNi single crystal processing. With a source of high-quality single crystals, many magnetization measurements were collected to reveal the magnetic structure of GdNi. Heat capacity and the magnetocaloric effect are also measured on a single crystal sample. The result is a thorough report on high quality single crystal processing and the magnetic properties of GdNi.

  4. Production of single-walled carbon nanotube grids

    DOE Patents [OSTI]

    Hauge, Robert H; Xu, Ya-Qiong; Pheasant, Sean

    2013-12-03

    A method of forming a nanotube grid includes placing a plurality of catalyst nanoparticles on a grid framework, contacting the catalyst nanoparticles with a gas mixture that includes hydrogen and a carbon source in a reaction chamber, forming an activated gas from the gas mixture, heating the grid framework and activated gas, and controlling a growth time to generate a single-wall carbon nanotube array radially about the grid framework. A filter membrane may be produced by this method.

  5. Composites of Doped Semiconducting Single-walled Carbon Nanotubes and

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

    Fluorene-based Polymers for Thermoelectric Power Conversion - Energy Innovation Portal Composites of Doped Semiconducting Single-walled Carbon Nanotubes and Fluorene-based Polymers for Thermoelectric Power Conversion National Renewable Energy Laboratory Contact NREL About This Technology Technology Marketing Summary Thermoelectric materials are materials which are able to create electricity when exposed to a heat source. This phenomenon is caused by the flow of electrons from heated regions

  6. Apparatus And Methods For Launching And Receiving A Broad Wavelength Range Source

    DOE Patents [OSTI]

    Von Drasek, William A.; Sonnenfroh, David; Allen, Mark G.; Stafford-Evans, Joy

    2006-02-28

    An apparatus and method for simultaneous detection of N gas species through laser radiation attenuation techniques is disclosed. Each of the N species has a spectral absorption band. N laser sources operate at a wavelength ?N in a spectral absorption band separated by the cutoff wavelength for single-mode transmission. Each laser source corresponds to a gas species and transmits radiation through an optical fiber constructed and arranged to provide single-mode transmission with minimal power loss.

  7. Positron source position sensing detector and electronics

    DOE Patents [OSTI]

    Burnham, Charles A. (South Essex, MA); Bradshaw, Jr., John F. (Winthrop, MA); Kaufman, David E. (Brockton, MA); Chesler, David A. (Newton Highlands, MA); Brownell, Gordon L. (Cambridge, MA)

    1985-01-01

    A positron source, position sensing device, particularly with medical applications, in which positron induced gamma radiation is detected using a ring of stacked, individual scintillation crystals, a plurality of photodetectors, separated from the scintillation crystals by a light guide, and high resolution position interpolation electronics. Preferably the scintillation crystals are several times more numerous than the photodetectors with each crystal being responsible for a single scintillation event from a received gamma ray. The light guide will disperse the light emitted from gamma ray absorption over several photodetectors. Processing electronics for the output of the photodetectors resolves the location of the scintillation event to a fraction of the dimension of each photodetector. Because each positron absorption results in two 180.degree. oppositely traveling gamma rays, the detection of scintillation in pairs permits location of the positron source in a manner useful for diagnostic purposes. The processing electronics simultaneously responds to the outputs of the photodetectors to locate the scintillations to the source crystal. While it is preferable that the scintillation crystal include a plurality of stacked crystal elements, the resolving power of the processing electronics is also applicable to continuous crystal scintillators.

  8. Pseudo-Single-Bunch Expands Experimental Scope

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

    Pseudo-Single-Bunch Expands Experimental Scope Pseudo-Single-Bunch Expands Experimental Scope Print Wednesday, 25 September 2013 00:00 Initial tests of a new pseudo-single-bunch...

  9. Projection of needs for gamma radiation sources and other radioisotopes and assessment of alternatives for providing radiation sources

    SciTech Connect (OSTI)

    Ross, W.A.; Jensen, G.A.; Clark, L.L.; Eakin, D.E.; Jarrett, J.H.; Katayama, Y.B.; McKee, R.W.; Morgan, L.G.; Nealey, S.M.; Platt, A.M.; Tingey, G.L.

    1989-06-01

    Pacific Northwest Laboratory reviewed the projected uses and demands for a variety of nuclear byproducts. Because the major large-scale near-term demand is for gamma irradiation sources, this report concentrates on the needs for gamma sources and evaluates the options for providing the needed material. Projections of possible growth in the irradiation treatment industry indicate that there will be a need for 180 to 320 MCi of /sup 60/Co (including /sup 137/Cs equivalent) in service in the year 2000. The largest current and projected use of gamma irradiation is for the sterilization of medical devices and disposable medical supplies. Currently, 40% of US disposable medical products are treated by irradiation, and within 10 years it is expected that 90% will be treated in this manner. Irradiation treatment of food for destruction of pathogens or parasites, disinfestation, or extension of allowable storage periods is estimated to require an active inventory of 75 MCi of /sup 60/Co-equivalent gamma source in about a decade. 90 refs., 7 figs., 25 tabs.

  10. Single element laser beam shaper

    DOE Patents [OSTI]

    Zhang, Shukui (Yorktown, VA); Michelle D. Shinn (Newport News, VA)

    2005-09-13

    A single lens laser beam shaper for converting laser beams from any spatial profile to a flat-top or uniform spatial profile. The laser beam shaper includes a lens having two aspheric surfaces. The beam shaper significantly simplifies the overall structure in comparison with conventional 2-element systems and therefore provides great ease in alignment and reduction of cost.

  11. Optimization of the LCLS Single Pulse Shutter (Technical Report) | SciTech

    Office of Scientific and Technical Information (OSTI)

    Connect Optimization of the LCLS Single Pulse Shutter Citation Details In-Document Search Title: Optimization of the LCLS Single Pulse Shutter A mechanical shutter which operates on demand is used to isolate a single pulse from a 120 Hz X-ray source. This is accomplished with a mechanical shutter which is triggered on demand with frequencies ranging from 0 to 10 Hz. The single pulse shutter is an iron blade that oscillates on a pivot in response to a force generated by a pair of pulsed

  12. A single-shot transmissive spectrometer for hard x-ray free electron lasers

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | SciTech Connect SciTech Connect Search Results Journal Article: A single-shot transmissive spectrometer for hard x-ray free electron lasers Citation Details In-Document Search Title: A single-shot transmissive spectrometer for hard x-ray free electron lasers We report hard x-ray single-shot spectral measurements of the Linac Coherent Light Source. The spectrometer is based on a 10 {mu}m thick cylindrically bent Si single crystal operating in the symmetric Bragg geometry

  13. The SIAM Photon Source

    SciTech Connect (OSTI)

    Pairsuwan, Weerapong

    2007-01-19

    A short history of the SIAM Photon Source in Thailand is described. The facility is based on the 1 GeV storage ring obtained from the SORTEC consortium in Japan. After a redesign to include insertion straight sections it produced the first light in December 2001 and the first beam line became operational in early 2002. Special difficulties appear when a synchrotron light facility is obtained by donation, which have mostly to do with the absence of human resource development that elsewhere is commonly accomplished during design and construction. Additional problems arise by the distance of a developing country like Thailand from the origin of technical parts of the donation. A donation does not provide time to generate local capabilities or include in the technical design locally obtainable parts. This makes future developments, repairs and maintenance more time consuming, difficult and expensive than it should be. In other cases, parts of components are proprietary or obsolete or both which requires redesign and engineering at a time when the replacement part should be available to prevent stoppage of operation.The build-up of a user community is very difficult, especially when the radiation spectrum is confined to the VUV regime. Most of scientific interest these days is focused on the x-ray regime. Due to its low beam energy, the SIAM storage ring did not produce useful x-ray intensities and we are therefore in the midst of an upgrade to produce harder radiation. The first step has been achieved with a 20% increase of energy to 1.2 GeV. This step shifts the critical photon energy of bending magnet radiation from 800 eV to 1.4 keV providing useful radiation up to 7 keV. A XAS-beam line has been completed in 2005 and experimentation is very active by now. The next step is to install a 6.4 T wavelength shifter by the end of 2006 resulting in a critical photon energy of 6.15 keV. Further upgrades are planed for the comming years.

  14. Constricted glow discharge plasma source

    DOE Patents [OSTI]

    Anders, Andre (Albany, CA); Anders, Simone (Albany, CA); Dickinson, Michael (San Leandro, CA); Rubin, Michael (Berkeley, CA); Newman, Nathan (Winnetka, IL)

    2000-01-01

    A constricted glow discharge chamber and method are disclosed. The polarity and geometry of the constricted glow discharge plasma source is set so that the contamination and energy of the ions discharged from the source are minimized. The several sources can be mounted in parallel and in series to provide a sustained ultra low source of ions in a plasma with contamination below practical detection limits. The source is suitable for applying films of nitrides such as gallium nitride and oxides such as tungsten oxide and for enriching other substances in material surfaces such as oxygen and water vapor, which are difficult process as plasma in any known devices and methods. The source can also be used to assist the deposition of films such as metal films by providing low-energy ions such as argon ions.

  15. A single-molecule approach to ZnO defect studies: Single photons and single defects

    SciTech Connect (OSTI)

    Jungwirth, N. R.; Pai, Y. Y.; Chang, H. S.; MacQuarrie, E. R.; Nguyen, K. X.; Fuchs, G. D.

    2014-07-28

    Investigations that probe defects one at a time offer a unique opportunity to observe properties and dynamics that are washed out of ensemble measurements. Here, we present confocal fluorescence measurements of individual defects in ZnO nanoparticles and sputtered films that are excited with sub-bandgap energy light. Photon correlation measurements yield both antibunching and bunching, indicative of single-photon emission from isolated defects that possess a metastable shelving state. The single-photon emission is in the range of ?560720?nm and typically exhibits two broad spectral peaks separated by ?150?meV. The excited state lifetimes range from 1 to 13?ns, consistent with the finite-size and surface effects of nanoparticles and small grains. We also observe discrete jumps in the fluorescence intensity between a bright state and a dark state. The dwell times in each state are exponentially distributed and the average dwell time in the bright (dark) state does (may) depend on the power of the exciting laser. Taken together, our measurements demonstrate the utility of a single-molecule approach to semiconductor defect studies and highlight ZnO as a potential host material for single-defect based applications.

  16. Sourcing Capabilities | GE Global Research

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

    Home > GE Global Research Sourcing External Document & Process Repository > Sourcing Capabilities Sourcing Capabilities The General Electric Company is strongly committed to meet the principles of Public Laws, Federal Acquisition Regulations (FARs), and specific cognizant Government Agency FAR supplemental regulations, and directs that business practices and procedures conform to these Federal laws and regulations. It is the policy of GE Global Research to encourage participation in

  17. Video Library | Advanced Photon Source

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

    Archives APS Brochure Annual Reports Posters Podcasts Image Gallery external site Video Library Syndicated Feeds (RSS) Now Playing: The Advanced Photon Source More videos:...

  18. Linac Coherent Light Source Overview

    Broader source: Energy.gov [DOE]

    Take an animated tour of the Linac Coherent Light Source (LCLS). Follow the laser pulse from the injector gun all the way through to the Far Experimental Hall.

  19. Linac Coherent Light Source Overview

    ScienceCinema (OSTI)

    None

    2013-05-29

    Take an animated tour of the Linac Coherent Light Source (LCLS). Follow the laser pulse from the injector gun all the way through to the Far Experimental Hall.

  20. Media Center | Advanced Photon Source

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

    distributed to all APS users and others interested in the APS. Research Highlights Books Articles on Advanced Photon Source research and engineering highlights that are written...

  1. APS Science | Advanced Photon Source

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

    Science APS Science features articles on Advanced Photon Source research and engineering highlights that are written for the interested public as well as the synchrotron x-ray,...

  2. Advanced Neutron Source (ANS) Project

    SciTech Connect (OSTI)

    Campbell, J.H.; Selby, D.L.; Harrington, R.M.; Peretz, F.J.

    1991-02-01

    This report discusses the research and development, design and safety of the Advanced Neutron Source at Oak Ridge National Laboratory. (LSP)

  3. Video Library | Advanced Photon Source

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

    Video Library Related Links: APS Colloquium APS Podcasts APS Today More videos: Introduction to the APS Physics of the Blues Now Playing: Building the Advanced Photon Source This...

  4. Polarized 3He? ion source with hyperfine state selection

    SciTech Connect (OSTI)

    Dudnikov, V.; Morozov, Vasiliy; Dudnikov, A.

    2015-04-01

    High beam polarization is essential to the scientific productivity of a collider. Polarized 3He ions are an essential part of the nuclear physics programs at existing and future ion-ion and electron-ion colliders such as BNL's RHIC and eRHIC and JLab's ELIC. Ion sources with performance exceeding that achieved today are a key requirement for the development of these next generation high-luminosity high-polarization colliders. The development of high-intensity high-brightness arc-discharge ion sources at the Budker Institute of Nuclear Physics (BINP) has opened up an opportunity for realization of a new type of a polarized 3He? ion source. This report discusses a polarized 3He? ion source based on the large difference of extra-electron auto-detachment lifetimes of the different 3He? ion hyperfine states. The highest momentum state of 5/2 has the largest lifetime of ? ? 350 s while the lower momentum states have lifetimes of ? ~ 10 s. By producing 3He? ion beam composed of only the |5/2, 5/2> hyperfine states and then quenching one of the states by an RF resonant field, 3He? beam polarization of 90% can be achieved. Such a method of polarized 3He? production has been considered before; however, due to low intensities of the He+ ion sources existing at that time, it was not possible to produce any interesting intensity of polarized 3He? ions. The high-brightness arc-discharge ion source developed at BINP can produce a high-brightness 3He+ beam with an intensity of up to 2 A allowing for selection of up to ?1-4 mA of 3He? ions with ?90% polarization. The high gas efficiency of an arc-discharge source is important due to the high cost of 3He gas. Some features of such a PIS as well as prototype designs are considered. An integrated 3He? ion source design providing high beam polarization could be prepared using existing BNL equipment with incorporation of new designs of the 1) arc discharge plasma generator, 2) extraction system, 3) charge exchange jet, and 4) magnetic separation system.

  5. Single wire drift chamber design

    SciTech Connect (OSTI)

    Krider, J.

    1987-03-30

    This report summarizes the design and prototype tests of single wire drift chambers to be used in Fermilab test beam lines. The goal is to build simple, reliable detectors which require a minimum of electronics. Spatial resolution should match the 300 ..mu..m rms resolution of the 1 mm proportional chambers that they will replace. The detectors will be used in beams with particle rates up to 20 KHz. Single track efficiency should be at least 99%. The first application will be in the MT beamline, which has been designed for calibration of CDF detectors. A set of four x-y modules will be used to track and measure the momentum of beam particles.

  6. Poynting-vector based method for determining the bearing and location of electromagnetic sources

    DOE Patents [OSTI]

    Simons, David J.; Carrigan, Charles R.; Harben, Philip E.; Kirkendall, Barry A.; Schultz, Craig A.

    2008-10-21

    A method and apparatus is utilized to determine the bearing and/or location of sources, such as, alternating current (A.C.) generators and loads, power lines, transformers and/or radio-frequency (RF) transmitters, emitting electromagnetic-wave energy for which a Poynting-Vector can be defined. When both a source and field sensors (electric and magnetic) are static, a bearing to the electromagnetic source can be obtained. If a single set of electric (E) and magnetic (B) sensors are in motion, multiple measurements permit location of the source. The method can be extended to networks of sensors allowing determination of the location of both stationary and moving sources.

  7. NUG Single Node Optimization Presentation.

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

    Single Node Optimization on Hopper Michael Stewart, NERSC Introduction ● Why are there so many compilers available on Hopper? ● Strengths and weaknesses of each compiler. ● Advice on choosing the most appropriate compiler for your work. ● Comparative benchmark results. ● How to compile and run with OpenMP for each compiler. ● Recommendations for running hybrid MPI/OpenMP codes on a node. Why So Many Compilers on Hopper? ● Franklin was delivered with the only commercially available

  8. A hard X-ray transmissive single-shot spectrometer for FEL sources...

    Office of Scientific and Technical Information (OSTI)

    Fritz, David M. ; Cammarata, Marco ; Lee, Sooheyong ; Hastings, Jerome B. ; Turner, James L. Publication Date: 2014-09-13 OSTI Identifier: 1156636 Report Number(s):...

  9. A Simple Radionuclide-Driven Single-Ion Source (Journal Article...

    Office of Scientific and Technical Information (OSTI)

    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 available for sale to...

  10. A simple radionuclide-driven single-ion source (Journal Article...

    Office of Scientific and Technical Information (OSTI)

    sup 148Gd onto a silicon alpha-particle detector and vapor depositing a layer of BaFsub 2 over it. sup 144Sm recoils from the alpha decay of sup 148Gd are used to ...

  11. A Simple Radionuclide-Driven Single-Ion Source (Journal Article...

    Office of Scientific and Technical Information (OSTI)

    Dept. ; Ackerman, N. ; SLAC ; Aharmin, B. ; Laurentian U. more ; Auger, M. ; Bern U., LHEP ; Benitez-Medina, C. ; Colorado State U. ; Breidenbach, M. ; SLAC ; Burenkov, A. ; ...

  12. Source terms released into the environment for a station blackout severe accident at the Peach Bottom Atomic Power Station

    SciTech Connect (OSTI)

    Carbajo, J.J.

    1995-07-01

    This study calculates source terms released into the environment at the Peach Bottom Atomic Power Station after containment failure during a postulated low-pressure, short-term station blackout severe accident. The severe accident analysis code MELCOR, version 1.8.1, was used in these calculations. Source terms were calculated for three different containment failure modes. The largest environmental releases occur for early containment failure at the drywell liner in contact with the cavity by liner melt-through. This containment failure mode is very likely to occur when the cavity is dry during this postulated severe accident sequence.

  13. Alternative energy sources in Iran: the state-of-the-art

    SciTech Connect (OSTI)

    Sabzevari, A.; Yaghoubi, M.A.

    1983-12-01

    Iran, the country well known for its enormous proven reserves of oil (fourth largest in the world), natural gas (second largest), and coal (considerable) is also one of the most favourable countries for utilization of solar, wind and other alternative energy sources. Depsite an average of 5 KWh/m/sup 2//day of solar energy over a large land area, and sites with frequent wind velocities of 7 m/s, very little attention has been paid to non-fossil fuels. Petroleum, on the other hand, has not only been the main fuel for Iran, but has also provided the country with its major revenue. Furthermore, the low cost of oil and gas has pushed the alternative energy sources into an unfavorable position. The main question is, for how long can such an energy picture go on. To answer this important question, the authors have attempted, firstly, to draw a concise energy picture (fuel and power production, distribution, demands and policies), and secondly, to list the potentials of the alternative energy sources. The paper also includes a critical review of the work done and the programs in connection with alternative energies in Iran.

  14. Hollow electrode plasma excitation source

    DOE Patents [OSTI]

    Ballou, N.E.

    1992-04-14

    A plasma source incorporates a furnace as a hollow anode, while a coaxial cathode is disposed therewithin. The source is located in a housing provided with an ionizable gas such that a glow discharge is produced between anode and cathode. Radiation or ionic emission from the glow discharge characterizes a sample placed within the furnace and heated to elevated temperatures. 5 figs.

  15. The Linac Coherent Light Source

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

    White, William E.; Robert, Aymeric; Dunne, Mike

    2015-05-01

    The Linac Coherent Light Source (LCLS) at the SLAC National Accelerator Laboratory was the first hard X-ray free-electron laser (FEL) to operate as a user facility. After five years of operation, LCLS is now a mature FEL user facility. Our personal views about opportunities and challenges inherent to these unique light sources are discussed.

  16. SINGLE HEATER TEST FINAL REPORT

    SciTech Connect (OSTI)

    J.B. Cho

    1999-05-01

    The Single Heater Test is the first of the in-situ thermal tests conducted by the U.S. Department of Energy as part of its program of characterizing Yucca Mountain in Nevada as the potential site for a proposed deep geologic repository for the disposal of spent nuclear fuel and high-level nuclear waste. The Site Characterization Plan (DOE 1988) contained an extensive plan of in-situ thermal tests aimed at understanding specific aspects of the response of the local rock-mass around the potential repository to the heat from the radioactive decay of the emplaced waste. With the refocusing of the Site Characterization Plan by the ''Civilian Radioactive Waste Management Program Plan'' (DOE 1994), a consolidated thermal testing program emerged by 1995 as documented in the reports ''In-Situ Thermal Testing Program Strategy'' (DOE 1995) and ''Updated In-Situ Thermal Testing Program Strategy'' (CRWMS M&O 1997a). The concept of the Single Heater Test took shape in the summer of 1995 and detailed planning and design of the test started with the beginning fiscal year 1996. The overall objective of the Single Heater Test was to gain an understanding of the coupled thermal, mechanical, hydrological, and chemical processes that are anticipated to occur in the local rock-mass in the potential repository as a result of heat from radioactive decay of the emplaced waste. This included making a priori predictions of the test results using existing models and subsequently refining or modifying the models, on the basis of comparative and interpretive analyses of the measurements and predictions. A second, no less important, objective was to try out, in a full-scale field setting, the various instruments and equipment to be employed in the future on a much larger, more complex, thermal test of longer duration, such as the Drift Scale Test. This ''shake down'' or trial aspect of the Single Heater Test applied not just to the hardware, but also to the teamwork and cooperation between multiple organizations performing their part in the test.

  17. Diversity employment and recruitment sources

    SciTech Connect (OSTI)

    Not Available

    1994-08-01

    Effective human resources management has been identified as one of four critical success factors in the Department of Energy Strategic Plan. The Plan states relative to this factor: ``The Department seeks greater alignment of resources with agency priorities and increased diversification of the workforce, including gender, ethnicity, age, and skills. This diversification will bring new thinking and perspectives that heretofore have not had a voice in departmental decision-making.`` This Guide has been developed as a key tool to assist Department of Energy management and administrative staff in achieving Goal 2 of this critical success factor, which is to ``Ensure a diverse and talented workforce.`` There are numerous sources from which to recruit minorities, women and persons with disabilities. Applying creativity and proactive effort, using traditional and non-traditional approaches, and reaching out to various professional, academic and social communities will increase the reservoir of qualified candidates from which to make selections. In addition, outreach initiatives will undoubtedly yield further benefits such as a richer cultural understanding and diversity awareness. The resource listings presented in this Guide are offered to encourage active participation in the diversity recruitment process. This Guide contains resource listings by state for organizations in the following categories: (1) African American Recruitment Sources; (2) Asian American/Pacific Islander Recruitment Sources; (3) Hispanic Recruitment Sources; (4) Native American/Alaskan Native Recruitment Sources; (5) Persons with Disabilities Recruitment Sources; and (6) Women Recruitment Sources.

  18. International Data on Radiological Sources

    SciTech Connect (OSTI)

    Martha Finck; Margaret Goldberg

    2010-07-01

    ABSTRACT The mission of radiological dispersal device (RDD) nuclear forensics is to identify the provenance of nuclear and radiological materials used in RDDs and to aid law enforcement in tracking nuclear materials and routes. The application of databases to radiological forensics is to match RDD source material to a source model in the database, provide guidance regarding a possible second device, and aid the FBI by providing a short list of manufacturers and distributors, and ultimately to the last legal owner of the source. The Argonne/Idaho National Laboratory RDD attribution database is a powerful technical tool in radiological forensics. The database (1267 unique vendors) includes all sealed sources and a device registered in the U.S., is complemented by data from the IAEA Catalogue, and is supported by rigorous in-lab characterization of selected sealed sources regarding physical form, radiochemical composition, and age-dating profiles. Close working relationships with global partners in the commercial sealed sources industry provide invaluable technical information and expertise in the development of signature profiles. These profiles are critical to the down-selection of potential candidates in either pre- or post- event RDD attribution. The down-selection process includes a match between an interdicted (or detonated) source and a model in the database linked to one or more manufacturers and distributors.

  19. Environmental Technology Verification of Mobile Sources Control...

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

    Environmental Technology Verification of Mobile Sources Control Technologies Environmental Technology Verification of Mobile Sources Control Technologies 2005 Diesel Engine...

  20. Protection #1: Remove the Source

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

    Remove the Source Protection #1: Remove the Source The 3 Protections = Defense in Depth August 1, 2013 Waste being removed from MDA-B inside a metal building Excavation of waste from MDA-B thumbnail of Removing the source means excavating contaminants, sorting these by waste type, and transporting to a disposal area in which contaminants are contained. RELATED IMAGES http://farm8.staticflickr.com/7388/9571274521_679fe1e34a_t.jpg Enlarge http://farm4.staticflickr.com/3726/9571272211_6873a571

  1. Three chamber negative ion source

    DOE Patents [OSTI]

    Leung, K.N.; Ehlers, K.W.; Hiskes, J.R.

    1983-11-10

    It is an object of this invention provide a negative ion source which efficiently provides a large flux of negatively ionized particles. This invention provides a volume source of negative ions which has a current density sufficient for magnetic fusion applications and has electrons suppressed from the output. It is still another object of this invention to provide a volume source of negative ions which can be electrostatically accelerated to high energies and subsequently neutralized to form a high energy neutral beam for use with a magnetically confined plasma.

  2. APS Podcasts | Advanced Photon Source

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

    of Art Preservation and Connoisseurship August 14, 2007; mp3 - 1.88MB Franceska Casadio, Art Institute of Chicago: November 3, 2004 The Advanced Photon Source (videomp4) August...

  3. Next Generation Light Source Workshops

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

    Next Generation Light Source Workshops A series of workshops will be held in late August with the goal of refining the scientific drivers for the facility and translating the...

  4. Radiation source with shaped emission

    DOE Patents [OSTI]

    Kubiak, Glenn D.; Sweatt, William C.

    2003-05-13

    Employing a source of radiation, such as an electric discharge source, that is equipped with a capillary region configured into some predetermined shape, such as an arc or slit, can significantly improve the amount of flux delivered to the lithographic wafers while maintaining high efficiency. The source is particularly suited for photolithography systems that employs a ringfield camera. The invention permits the condenser which delivers critical illumination to the reticle to be simplified from five or more reflective elements to a total of three or four reflective elements thereby increasing condenser efficiency. It maximizes the flux delivered and maintains a high coupling efficiency. This architecture couples EUV radiation from the discharge source into a ring field lithography camera.

  5. Sponsored E-Source Membership

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

    Programs Service (EDRP) With EDRP, you'll discover ways to make your EE and demand-response programs more effective. With E Source EDRP you can: Identify attributes...

  6. Magnetic Materials | Advanced Photon Source

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

    Materials Internal Magnetic Materials The Magnetic Material Group (MMG) is part of the X-ray Science Division (XSD) at the Advanced Photon Source (APS). Our research focuses on the...

  7. Electrolyte salts for power sources

    DOE Patents [OSTI]

    Doddapaneni, Narayan (10516 Royal Birkdale, NE., Albuquerque, NM 87111); Ingersoll, David (5824 Mimosa Pl., NE., Albuquerque, NM 87111)

    1995-01-01

    Electrolyte salts for power sources comprising salts of phenyl polysulfonic acids and phenyl polyphosphonic acids. The preferred salts are alkali and alkaline earth metal salts, most preferably lithium salts.

  8. E Source | Open Energy Information

    Open Energy Info (EERE)

    use and provision of energy. Who Is E Source? Whether you're an electric or natural gas utility or a large business customer served by a utility, your problems are probably...

  9. Storage Ring Synchrotron Radiation Sources

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

    srlogot.gif (19784 bytes) As of March 1, 2005 this WEB page is no longer updated. For future information about light sources go to Hyperlinks in the "RING (INST. )" column will...

  10. ARM - Sources of Atmospheric Carbon

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

    Sources of Atmospheric Carbon Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox Lesson Plans Sources of Atmospheric Carbon Atmospheric carbon represented a steady state system, where influx equaled outflow, before the Industrial Revolution. Currently, it is no longer a steady state system because the

  11. Energy Sources | Department of Energy

    Office of Environmental Management (EM)

    Sources Energy Sources December 17, 2015 Top 5 Interactives and Maps of 2015 From rapidly rising renewables to carbon emission comparisons, these powerful visual aids illustrate the biggest energy stories of 2015. August 21, 2015 This gigantic animated globe will soon take environmental awareness to a whole new level! The National Oceanic & Atmospheric Administration's (NOAA's) Science On a Sphere, like this one at their headquarters in Maryland, will soon feature new energy datasets to

  12. Single-Particle Dynamics in Electron Storage Rings with Extremely Low

    Office of Scientific and Technical Information (OSTI)

    Emittance (Conference) | SciTech Connect Conference: Single-Particle Dynamics in Electron Storage Rings with Extremely Low Emittance Citation Details In-Document Search Title: Single-Particle Dynamics in Electron Storage Rings with Extremely Low Emittance Electron storage rings are widely used for high luminosity colliders, damping rings in high-energy linear colliders, and synchrotron light sources. They have become essential facilities to study high-energy physics and material and medical

  13. Single System Image Cluster Management

    Energy Science and Technology Software Center (OSTI)

    2004-02-13

    Cluster computing has quickly proven itself to be a capable workhorse for a wide variety of production computing tasks; however, setting up and maintaining a cluster still requires significantly more effort than administrating just a single machine. As computing hardware descreases in price and cluster sizes grow, it is becoming increasingly important to manage clusters cleverly so that a system administration effort can "scale" as well. To ease the task of mananging many machines, administratorsmore » often deploy an environment that is homogeneous across all nodes of a cluster, and maintain a snapshot of the filesystem as a 'master image'. However due to operational, behavioral, and physical constraints, many nodes often require numerous deviations from the master image in order to operate as desired.« less

  14. Pseudo-Single-Bunch Expands Experimental Scope

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

    Pseudo-Single-Bunch Expands Experimental Scope Print Initial tests of a new pseudo-single-bunch (PSB) operational mode at the ALS have shown promising results-PSB would vastly...

  15. EEG and MEG source localization using recursively applied (RAP) MUSIC

    SciTech Connect (OSTI)

    Mosher, J.C.; Leahy, R.M.

    1996-12-31

    The multiple signal characterization (MUSIC) algorithm locates multiple asynchronous dipolar sources from electroencephalography (EEG) and magnetoencephalography (MEG) data. A signal subspace is estimated from the data, then the algorithm scans a single dipole model through a three-dimensional head volume and computes projections onto this subspace. To locate the sources, the user must search the head volume for local peaks in the projection metric. Here we describe a novel extension of this approach which we refer to as RAP (Recursively APplied) MUSIC. This new procedure automatically extracts the locations of the sources through a recursive use of subspace projections, which uses the metric of principal correlations as a multidimensional form of correlation analysis between the model subspace and the data subspace. The dipolar orientations, a form of `diverse polarization,` are easily extracted using the associated principal vectors.

  16. Pseudo-Single-Bunch Expands Experimental Scope

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

    Pseudo-Single-Bunch Expands Experimental Scope Print Initial tests of a new pseudo-single-bunch (PSB) operational mode at the ALS have shown promising results-PSB would vastly expand the facility's capacity to carry out dynamics and time-of-flight experiments with a major reduction in sample damage. In PSB operation, a single electron bunch is displaced transversely from the other electron bunches circulating in the storage ring. Experiments that require light emitted only from a single bunch

  17. Pseudo-Single-Bunch Expands Experimental Scope

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

    Pseudo-Single-Bunch Expands Experimental Scope Print Initial tests of a new pseudo-single-bunch (PSB) operational mode at the ALS have shown promising results-PSB would vastly expand the facility's capacity to carry out dynamics and time-of-flight experiments with a major reduction in sample damage. In PSB operation, a single electron bunch is displaced transversely from the other electron bunches circulating in the storage ring. Experiments that require light emitted only from a single bunch

  18. Pseudo-Single-Bunch Expands Experimental Scope

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

    Pseudo-Single-Bunch Expands Experimental Scope Print Initial tests of a new pseudo-single-bunch (PSB) operational mode at the ALS have shown promising results-PSB would vastly expand the facility's capacity to carry out dynamics and time-of-flight experiments with a major reduction in sample damage. In PSB operation, a single electron bunch is displaced transversely from the other electron bunches circulating in the storage ring. Experiments that require light emitted only from a single bunch

  19. Pseudo-Single-Bunch Expands Experimental Scope

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

    Pseudo-Single-Bunch Expands Experimental Scope Pseudo-Single-Bunch Expands Experimental Scope Print Wednesday, 25 September 2013 00:00 Initial tests of a new pseudo-single-bunch (PSB) operational mode at the ALS have shown promising results-PSB would vastly expand the facility's capacity to carry out dynamics and time-of-flight experiments with a major reduction in sample damage. In PSB operation, a single electron bunch is displaced transversely from the other electron bunches circulating in

  20. Pseudo-Single-Bunch Expands Experimental Scope

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

    Pseudo-Single-Bunch Expands Experimental Scope Print Initial tests of a new pseudo-single-bunch (PSB) operational mode at the ALS have shown promising results-PSB would vastly expand the facility's capacity to carry out dynamics and time-of-flight experiments with a major reduction in sample damage. In PSB operation, a single electron bunch is displaced transversely from the other electron bunches circulating in the storage ring. Experiments that require light emitted only from a single bunch

  1. Pseudo-Single-Bunch Expands Experimental Scope

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

    Pseudo-Single-Bunch Expands Experimental Scope Print Initial tests of a new pseudo-single-bunch (PSB) operational mode at the ALS have shown promising results-PSB would vastly expand the facility's capacity to carry out dynamics and time-of-flight experiments with a major reduction in sample damage. In PSB operation, a single electron bunch is displaced transversely from the other electron bunches circulating in the storage ring. Experiments that require light emitted only from a single bunch

  2. Single and double grid long-range alpha detectors

    DOE Patents [OSTI]

    MacArthur, D.W.; Allander, K.S.

    1993-03-16

    Alpha particle detectors capable of detecting alpha radiation from distant sources. In one embodiment, a voltage is generated in a single electrically conductive grid while a fan draws air containing air molecules ionized by alpha particles through an air passage and across the conductive grid. The current in the conductive grid can be detected and used for measurement or alarm. Another embodiment builds on this concept and provides an additional grid so that air ions of both polarities can be detected. The detector can be used in many applications, such as for pipe or duct, tank, or soil sample monitoring.

  3. Miniature x-ray source

    DOE Patents [OSTI]

    Trebes, James E. (Livermore, CA); Bell, Perry M. (Tracy, CA); Robinson, Ronald B. (Modesto, CA)

    2000-01-01

    A miniature x-ray source utilizing a hot filament cathode. The source has a millimeter scale size and is capable of producing broad spectrum x-ray emission over a wide range of x-ray energies. The miniature source consists of a compact vacuum tube assembly containing the hot filament cathode, an anode, a high voltage feedthru for delivering high voltage to the cathode, a getter for maintaining high vacuum, a connector for initial vacuum pump down and crimp-off, and a high voltage connection for attaching a compact high voltage cable to the high voltage feedthru. At least a portion of the vacuum tube wall is fabricated from highly x-ray transparent materials, such as sapphire, diamond, or boron nitride.

  4. Miniature x-ray source

    DOE Patents [OSTI]

    Trebes, James E. (Livermore, CA); Stone, Gary F. (Livermore, CA); Bell, Perry M. (Tracy, CA); Robinson, Ronald B. (Modesto, CA); Chornenky, Victor I. (Minnetonka, MN)

    2002-01-01

    A miniature x-ray source capable of producing broad spectrum x-ray emission over a wide range of x-ray energies. The miniature x-ray source comprises a compact vacuum tube assembly containing a cathode, an anode, a high voltage feedthru for delivering high voltage to the anode, a getter for maintaining high vacuum, a connection for an initial vacuum pump down and crimp-off, and a high voltage connection for attaching a compact high voltage cable to the high voltage feedthru. At least a portion of the vacuum tube wall is highly x-ray transparent and made, for example, from boron nitride. The compact size and potential for remote operation allows the x-ray source, for example, to be placed adjacent to a material sample undergoing analysis or in proximity to the region to be treated for medical applications.

  5. Compact portable electric power sources

    SciTech Connect (OSTI)

    Fry, D.N.; Holcomb, D.E.; Munro, J.K.; Oakes, L.C.; Matson, M.J.

    1997-02-01

    This report provides an overview of recent advances in portable electric power source (PEPS) technology and an assessment of emerging PEPS technologies that may meet US Special Operations Command`s (SOCOM) needs in the next 1--2- and 3--5-year time frames. The assessment was performed through a literature search and interviews with experts in various laboratories and companies. Nineteen PEPS technologies were reviewed and characterized as (1) PEPSs that meet SOCOM requirements; (2) PEPSs that could fulfill requirements for special field conditions and locations; (3) potentially high-payoff sources that require additional R and D; and (4) sources unlikely to meet present SOCOM requirements. 6 figs., 10 tabs.

  6. Single-Chain Antibody Library

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

    Baird, Cheryl

    Researchers at Pacific Northwest National Laboratory (PNNL) have constructed a nonimmune library consisting of 109 human antibody scFv fragments, which have been cloned and expressed on the surface of yeast. Nanomolar-affinity scFvs are routinely obtained by magnetic bead screening and flow cytometric sorting. The yeast library can be amplified 1010 fold without measurable loss of clonal diversity. This allows for indefinite expansion of the library. All scFv clones can be assessed directly on the yeast cell surface by immunofluorescent labeling and flow cytometry, obviating separate subcloning, expression, and purification steps. The ability to use multiplex library screening demonstrates the utility of this approach for high-throughput antibody isolation for proteomic applications. The yeast library may be used for research projects or teaching performed for U.S. Government purposes only. If you would like to request an aliquot of the single-chain antibody library for your research, please print and fill out the Materials Transfer Agreement (MTA) [PDF, 20K]. The website provides the contact information for mailing the MTA. [copied from http://www.sysbio.org/dataresources/singlechain.stm

  7. Sensor/source electrometer circuit

    SciTech Connect (OSTI)

    Hughes, W.J.

    1991-12-31

    A multiple decade electrometer circuit is claimed which can measure low input currents or act as a current source and is comprised of a microprocessor controlled digital to analog converters to derive individual decades. A plurality of decades are created by multiple D-A voltage sources which generate electrometer currents through scaled resistors. After a first series of decades of current are successively produced, the converters are 10 cycled to generate current through new resistors scaled to produce another series decades of current. In this manner, the electrometer circuit generates or senses a plurality of decades of current without significant scale change.

  8. Experimental plan for the Single-Family Study

    SciTech Connect (OSTI)

    Berry, L.G.; Brown, M.A.; Wright, T.; White, D.L.

    1991-09-01

    The national evaluation of the Weatherization Assistance Program (WAP) consists of five separate studies. The Single-Family Study is one of three studies that will estimate program energy savings and cost effectiveness in principal WAP submarkets. This report presents the experimental plan for the Single-Family Study, which will be implemented over the next three years (1991--1993). The Single-Family Study will directly estimate energy savings for a nationally representative sample of single-family and small multifamily homes weatherized in the 1989 program year. Savings will be estimated from gas and electric utility billing records using the Princeton Scorekeeping Method (PRISM). The study will also assess nonenergy impacts (e.g., health, comfort, safety, and housing affordability), estimate cost effectiveness, and analyze factors influencing these outcomes. For homes using fuels such as wood, coal, fuel oil, kerosene, and propane as the primary source of space conditioning, energy savings will be studied indirectly. The study will assemble a large nationally representative data base. A cluster sampling approach will be used, in which about 400 subgrantees are selected in a first stage and weatherized homes are selected in a second range. To ensure that the Single-Family Study is able to identify promising opportunities for future program development, two purposively selected groups of subgrantees will be included: (1) subgrantees that install cooling measures (such as more efficient air conditioning equipment or radiant barriers), and (2) exemplary subgrantees that use state-of-the-art technologies and service delivery procedures (such as advanced audit techniques, blower door tests, infrared scanners, extensive client education, etc.). These two groups of subgrantees will be analyzed to identify the most effective program elements in specific circumstances. 14 refs., 4 figs., 3 tabs.

  9. A Novel and Functional Single Layer Sheet of ZnSe

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

    Zhou, Jia; Sumpter, Bobby G; Kent, Paul R; Huang, Jingsong

    2015-01-01

    In this Communication, we report a novel singlelayer sheet of ZnSe, with a three-atomic thickness, which demonstrates a strong quantum confinement effect by exhibiting a large blue shift of 2.0 eV in its absorption edge relative to the zinc blende (ZB) bulk phase. Theoretical optical absorbance shows that the largest absorption of this ultrathin single-layer sheet of ZnSe occurs at a wavelength similar to its four-atom-thick doublelayer counterpart but with higher photoabsorption efficiency, suggesting a superior behavior on incident photon-to-current conversion efficiency for solar water splitting, among other potential applications. The results presented herein for ZnSe may be generalized tomore » other group II-VI analogues.« less

  10. National Synchrotron Light Source II

    ScienceCinema (OSTI)

    Steve Dierker

    2010-01-08

    The National Synchrotron Light Source II (NSLS-II) at the U.S. Department of Energy's Brookhaven National Laboratory is a proposed new state-of-the-art medium energy storage ring designed to deliver world-leading brightness and flux with top-off operation

  11. Reporting of Radioactive Sealed Sources

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

    2008-02-27

    To establish U.S. Department of Energy requirements for inventory reporting, transaction reporting, verification of reporting, and assign responsibilities for reporting of radioactive sealed sources. DOE N 251.86 extends this notice until 5-6-11. No cancellations. Canceled by DOE O 231.1B

  12. Property:HeatSource | Open Energy Information

    Open Energy Info (EERE)

    HeatSource Jump to: navigation, search Property Name HeatSource Property Type String Description A description of the resource heat source in the geothermal area. Describes what...

  13. Introduction to APS | Advanced Photon Source

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

    Introduction to APS What is the APS? What is the APS? The Advanced Photon Source is a synchrotron light source that produces high-energy, high-brightness x-ray beams. The source is...

  14. EPA Source Reduction Assistance Grant Program

    Broader source: Energy.gov [DOE]

    The U.S. Environmental Protection Agency (EPA) is accepting applications for the Source Reduction Assistance Grant Program to support pollution prevention/source reduction and/or resource conservation projects that reduce or eliminate pollution at the source.

  15. Miniaturized cathodic arc plasma source

    DOE Patents [OSTI]

    Anders, Andre (Albany, CA); MacGill, Robert A. (Richmond, CA)

    2003-04-15

    A cathodic arc plasma source has an anode formed of a plurality of spaced baffles which extend beyond the active cathode surface of the cathode. With the open baffle structure of the anode, most macroparticles pass through the gaps between the baffles and reflect off the baffles out of the plasma stream that enters a filter. Thus the anode not only has an electrical function but serves as a prefilter. The cathode has a small diameter, e.g. a rod of about 1/4 inch (6.25 mm) diameter. Thus the plasma source output is well localized, even with cathode spot movement which is limited in area, so that it effectively couples into a miniaturized filter. With a small area cathode, the material eroded from the cathode needs to be replaced to maintain plasma production. Therefore, the source includes a cathode advancement or feed mechanism coupled to cathode rod. The cathode also requires a cooling mechanism. The movable cathode rod is housed in a cooled metal shield or tube which serves as both a current conductor, thus reducing ohmic heat produced in the cathode, and as the heat sink for heat generated at or near the cathode. Cooling of the cathode housing tube is done by contact with coolant at a place remote from the active cathode surface. The source is operated in pulsed mode at relatively high currents, about 1 kA. The high arc current can also be used to operate the magnetic filter. A cathodic arc plasma deposition system using this source can be used for the deposition of ultrathin amorphous hard carbon (a-C) films for the magnetic storage industry.

  16. Engineering report single-shell tank farms interim measures to limit infiltration through the vadose zone

    SciTech Connect (OSTI)

    HAASS, C.C.

    1999-10-14

    Identifies, evaluates and recommends interim measures for reducing or eliminating water sources and preferential pathways within the vadose zone of the single-shell tank farms. Features studied: surface water infiltration and leaking water lines that provide recharge moisture, and wells that could provide pathways for contaminant migration. An extensive data base, maps, recommended mitigations, and rough order of magnitude costs are included.

  17. Power Sources Inc | Open Energy Information

    Open Energy Info (EERE)

    Sources Inc Jump to: navigation, search Name: Power Sources Inc. Place: Charlotte, North Carolina Sector: Biomass Product: US-based operator and developer of biomass-to-energy...

  18. Agri Source Fuels | Open Energy Information

    Open Energy Info (EERE)

    search Name: Agri-Source Fuels Place: Pensacola, Florida Zip: 32505 Product: Biodiesel producer located in Florida that owns a plant in Dade City. References: Agri-Source...

  19. Alternative Energy Sources Inc | Open Energy Information

    Open Energy Info (EERE)

    Sources Inc Jump to: navigation, search Name: Alternative Energy Sources Inc Place: Kansas City, Missouri Zip: 64108 Product: Kansas City-based company that constructs, owns and...

  20. Alternative Water Sources Map | Department of Energy

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

    Facilities Water Efficiency Alternative Water Sources Map Alternative Water Sources Map The Federal Energy Management Program (FEMP) created the Alternative Water Map to...

  1. Source Geometric Considerations for OMEGA Dante Measurements...

    Office of Scientific and Technical Information (OSTI)

    Source Geometric Considerations for OMEGA Dante Measurements Citation Details In-Document Search Title: Source Geometric Considerations for OMEGA Dante Measurements You are...

  2. Source Geometric Considerations for OMEGA Dante Measurements...

    Office of Scientific and Technical Information (OSTI)

    Source Geometric Considerations for OMEGA Dante Measurements Citation Details In-Document Search Title: Source Geometric Considerations for OMEGA Dante Measurements Authors: May, M...

  3. Ground Source Solutions | Open Energy Information

    Open Energy Info (EERE)

    Kingdom Zip: NG22 9GW Sector: Buildings Product: UK-based installer of ground source energy systems to domestic and commercial buildings. References: Ground Source...

  4. Blue Source LLC | Open Energy Information

    Open Energy Info (EERE)

    Source LLC Jump to: navigation, search Name: Blue Source LLC Place: Salt Lake City, Utah Zip: 84121 Product: Salt Lake City-based emission offset aggregation company. References:...

  5. Capital Sources and Providers | Department of Energy

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

    Capital Sources and Providers Capital Sources and Providers An image of a blue diagram showing an arrow labeled "Lender" pointing to a rectangle labeled "Borrower" with a curved ...

  6. APS Organization Chart | Advanced Photon Source

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

    APS Organization Chart The Advanced Photon Source (APS) organization comprises three divisions and one project office. Advanced Photon Source Organization Photon Sciences Overview...

  7. Open Source Software | Argonne National Laboratory

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

    Open Source Software TDC encourages Argonne authors to post on the GitHub platform to facilitate transfer of open source software....

  8. Geothermal source potential and utilization for alcohol production

    SciTech Connect (OSTI)

    Austin, J.C.

    1981-11-01

    A study was conducted to assess the technical and economic feasibility of using a potential geothermal source to drive a fuel grade alcohol plant. Test data from the well at the site indicated that the water temperature at approximately 8500 feet should approach 275/sup 0/F. However, no flow data was available, and so the volume of hot water that can be expected from a well at this site is unknown. Using the available data, numerous fuel alcohol production processes and various heat utilization schemes were investigated to determine the most cost effective system for using the geothermal resource. The study found the direct application of hot water for alcohol production based on atmospheric processes using low pressure steam to be most cost effective. The geothermal flow rates were determined for various sizes of alcohol production facility using 275/sup 0/F water, 235/sup 0/F maximum processing temperature, 31,000 and 53,000 Btu per gallon energy requirements, and appropriate process approach temperatures. It was determined that a 3 million gpy alcohol plant is the largest facility that can practically be powered by the flow from one large geothermal well. An order-of-magnitude cost estimate was prepared, operating costs were calculated, the economic feasibility of the propsed project was examined, and a sensitivity analysis was performed.

  9. Single Cystal Services | The Ames Laboratory

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

    Single Cystal Services We are a leader in the preparation of high-quality single crystals of rare earth and refractory metals and their alloys. High-purity single crystals of rare earth, transition, and refractory metals and alloys are available on a custom, best-effort basis. Some crystals can be refined to extreme purity by several metal-purification procedures, such as electro-transport and selective de-oxidation. This processing makes available for scientific research metal crystals that are

  10. Single Packaged Vertical Units | Department of Energy

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

    Single Packaged Vertical Units Single Packaged Vertical Units The Department of Energy (DOE) develops standardized data templates for reporting the results of tests conducted in accordance with current DOE test procedures. Templates may be used by third-party laboratories under contract with DOE that conduct testing in support of ENERGY STAR® verification, DOE rulemakings, and enforcement of the federal energy conservation standards. File Single Packaged Vertical Units -- v2.0 More Documents

  11. Self-seeded single-frequency solid-state ring laser and system using same

    DOE Patents [OSTI]

    Dane, C. Brent; Hackel, Lloyd; Harris, Fritz B.

    2007-02-20

    A method of operating a laser to obtain an output pulse having a single wavelength, comprises inducing an intracavity loss into a laser resonator having an amount that prevents oscillation during a time that energy from the pump source is being stored in the gain medium. Gain is built up in the gain medium with energy from the pump source until formation of a single-frequency relaxation oscillation pulse in the resonator. Upon detection of the onset of the relaxation oscillation pulse, the intracavity loss is reduced, such as by Q-switching, so that the built-up gain stored in the gain medium is output from the resonator in the form of an output pulse at a single frequency. An electronically controllable output coupler is controlled to affect output pulse characteristics. The laser acts a master oscillator in a master oscillator power amplifier configuration. The laser is used for laser peening.

  12. Single-dot optical emission from ultralow density well-isolated InP quantum dots

    SciTech Connect (OSTI)

    Ugur, A.; Hatami, F.; Masselink, W. T.; Vamivakas, A. N.; Lombez, L.; Atatuere, M.

    2008-10-06

    We demonstrate a straightforward way to obtain single well-isolated quantum dots emitting in the visible part of the spectrum and characterize the optical emission from single quantum dots using this method. Self-assembled InP quantum dots are grown using gas-source molecular-beam epitaxy over a wide range of InP deposition rates, using an ultralow growth rate of about 0.01 atomic monolayers/s, a quantum-dot density of 1 dot/{mu}m{sup 2} is realized. The resulting isolated InP quantum dots embedded in an InGaP matrix are individually characterized without the need for lithographical patterning and masks on the substrate. Such low-density quantum dots show excitonic emission at around 670 nm with a linewidth limited by instrument resolution. This system is applicable as a single-photon source for applications such as quantum cryptography.

  13. Press Pass - Press Release - Single top quark

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

    Higgs." Discovering the single top quark production presents challenges similar to the Higgs boson search in the need to extract an extremely small signal from a very large...

  14. Metagenomics, metatranscriptomics and single cell genomics reveal...

    Office of Scientific and Technical Information (OSTI)

    and single cell genomics reveal functional response of active Oceanospirillales to Gulf oil spill Citation Details In-Document Search Title: Metagenomics, metatranscriptomics and...

  15. Single particle imaging: opportunities and challenges | Stanford...

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

    Single particle imaging: opportunities and challenges Thursday, December 17, 2015 - 3:00pm SLAC, Redtail Hawk Conference Room 108A Speaker: Ivan Vartaniants, DESY Program...

  16. Single Packaged Vertical Units | Department of Energy

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

    standards. File Single Packaged Vertical Units -- v2.0 More Documents & Publications Room Air Conditioners Commercial Refrigeration Equipment Commercial Refrigeration Equipment

  17. Single-Shell Tank Evaluations - Hanford Site

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

    Single-Shell Tank Evaluations Documents Documents Hanford Site Cleanup Completion Framework Tri-Party Agreement Freedom of Information and Privacy Act Hanford Site Budget Hanford...

  18. X-ray lithography source

    DOE Patents [OSTI]

    Piestrup, M.A.; Boyers, D.G.; Pincus, C.

    1991-12-31

    A high-intensity, inexpensive X-ray source for X-ray lithography for the production of integrated circuits is disclosed. Foil stacks are bombarded with a high-energy electron beam of 25 to 250 MeV to produce a flux of soft X-rays of 500 eV to 3 keV. Methods of increasing the total X-ray power and making the cross section of the X-ray beam uniform are described. Methods of obtaining the desired X-ray-beam field size, optimum frequency spectrum and eliminating the neutron flux are all described. A method of obtaining a plurality of station operation is also described which makes the process more efficient and economical. The satisfying of these issues makes transition radiation an excellent moderate-priced X-ray source for lithography. 26 figures.

  19. X-ray lithography source

    DOE Patents [OSTI]

    Piestrup, Melvin A. (Woodside, CA); Boyers, David G. (Mountain View, CA); Pincus, Cary (Sunnyvale, CA)

    1991-01-01

    A high-intensity, inexpensive X-ray source for X-ray lithography for the production of integrated circuits. Foil stacks are bombarded with a high-energy electron beam of 25 to 250 MeV to produce a flux of soft X-rays of 500 eV to 3 keV. Methods of increasing the total X-ray power and making the cross section of the X-ray beam uniform are described. Methods of obtaining the desired X-ray-beam field size, optimum frequency spectrum and elminating the neutron flux are all described. A method of obtaining a plurality of station operation is also described which makes the process more efficient and economical. The satisfying of these issues makes transition radiation an exellent moderate-priced X-ray source for lithography.

  20. Safety Around Sources of Radiation

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

    Keeping Exposure Low Working Safely Around Radioactive Contamination Types of Radiation Exposure Managing Radiation Emergencies Procedure Demonstration Is it safe to be around sources? Too much radiation exposure is harmful. The degree of radiation injury depends on the amount of radiation received and the time involved. In general, the higher the amount, the greater the severity of early effects (occurring within a few weeks) and the greater the possibility of late effects such as cancer. The

  1. Next Generation Light Source Workshops

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

    Next Generation Light Source Workshops A series of workshops will be held in late August with the goal of refining the scientific drivers for the facility and translating the scientific needs into the technical performance requirements. Feedback from these workshops will provide important input for advancing the design of the facility. Workshops are planned in the following areas Fundamental Atomic, Molecular, Optical Physics & Combustion Dynamics Mon. Aug. 20 - Tues. Aug 21, 2012 Physical

  2. Using an Explicit Emission Tagging Method in Global Modeling of Source-Receptor Relationships for Black Carbon in the Arctic: Variations, Sources and Transport Pathways

    SciTech Connect (OSTI)

    Wang, Hailong; Rasch, Philip J.; Easter, Richard C.; Singh, Balwinder; Zhang, Rudong; Ma, Po-Lun; Qian, Yun; Ghan, Steven J.; Beagley, Nathaniel

    2014-11-27

    We introduce an explicit emission tagging technique in the Community Atmosphere Model to quantify source-region-resolved characteristics of black carbon (BC), focusing on the Arctic. Explicit tagging of BC source regions without perturbing the emissions makes it straightforward to establish source-receptor relationships and transport pathways, providing a physically consistent and computationally efficient approach to produce a detailed characterization of the destiny of regional BC emissions and the potential for mitigation actions. Our analysis shows that the contributions of major source regions to the global BC burden are not proportional to the respective emissions due to strong region-dependent removal rates and lifetimes, while the contributions to BC direct radiative forcing show a near-linear dependence on their respective contributions to the burden. Distant sources contribute to BC in remote regions mostly in the mid- and upper troposphere, having much less impact on lower-level concentrations (and deposition) than on burden. Arctic BC concentrations, deposition and source contributions all have strong seasonal variations. Eastern Asia contributes the most to the wintertime Arctic burden. Northern Europe emissions are more important to both surface concentration and deposition in winter than in summer. The largest contribution to Arctic BC in the summer is from Northern Asia. Although local emissions contribute less than 10% to the annual mean BC burden and deposition within the Arctic, the per-emission efficiency is much higher than for major non-Arctic sources. The interannual variability (1996-2005) due to meteorology is small in annual mean BC burden and radiative forcing but is significant in yearly seasonal means over the Arctic. When a slow aging treatment of BC is introduced, the increase of BC lifetime and burden is source-dependent. Global BC forcing-per-burden efficiency also increases primarily due to changes in BC vertical distributions. The relative contribution from major non-Arctic sources to the Arctic BC burden increases only slightly, although the contribution of Arctic local sources is reduced by a factor of 2 due to the slow aging treatment.

  3. ILC Electron Source Injector Simuations

    SciTech Connect (OSTI)

    Lakshmanan, Manu; /Cornell U., LNS /SLAC

    2007-08-29

    As part of the global project aimed at proposing an efficient design for the ILC (International Linear Collider), we simulated possible setups for the electron source injector, which will provide insight into how the electron injector for the ILC should be designed in order to efficiently accelerate the electron beams through the bunching system. This study uses three types of software: E-Gun to simulate electron beam emission, Superfish to calculate solenoidal magnetic fields, and GPT (General Particle Tracer) to trace charged particles after emission through magnetic fields and subharmonic bunchers. We performed simulations of the electron source injector using various electron gun bias voltages (140kV - 200kV), emitted beam lengths (500ps - 1ns) and radii (7mm - 10mm), and electromagnetic field strengths of the first subharmonic buncher (5 - 20 MV/m). The results of the simulations show that for the current setup of the ILC, a modest electron gun bias voltage ({approx}140kV) is sufficient to achieve the required bunching of the beam in the injector. Extensive simulations of parameters also involving the second subharmonic buncher should be performed in order to gain more insight into possible efficient designs for the ILC electron source injector.

  4. Negative Ion Source - Facilities - Cyclotron Institute

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

    Negative Ion Source Negative Ion Source. The Multi-Cusp Negative Ion Source was installed on the K150 Cyclotron in 2010. H- and D- ions are produced in the plasma chamber with a hot tantalum filament. The source is capable of producing milliamperes of ions and is used for experiments needing high intensity proton and deuteron beams.

  5. Best Management Practice #14: Alternative Water Sources

    Broader source: Energy.gov [DOE]

    Many federal facilities may have water uses that can be met with non-potable water from alternative water sources. Potentially available alternative water sources for Federal sources include municipal-supplied reclaimed water, treated gray water from on-site sanitary sources, and storm water.

  6. National Synchrotron Light Source Activity Report 1998

    SciTech Connect (OSTI)

    Rothman, Eva

    1999-05-01

    National Synchrotron Light Source Activity Report for period October 1, 1997 through September 30, 1998

  7. Electron source for a mini ion trap mass spectrometer

    DOE Patents [OSTI]

    Dietrich, Daniel D.; Keville, Robert F.

    1995-01-01

    An ion trap which operates in the regime between research ion traps which can detect ions with a mass resolution of better than 1:10.sup.9 and commercial mass spectrometers requiring 10.sup.4 ions with resolutions of a few hundred. The power consumption is kept to a minimum by the use of permanent magnets and a novel electron gun design. By Fourier analyzing the ion cyclotron resonance signals induced in the trap electrodes, a complete mass spectra in a single combined structure can be detected. An attribute of the ion trap mass spectrometer is that overall system size is drastically reduced due to combining a unique electron source and mass analyzer/detector in a single device. This enables portable low power mass spectrometers for the detection of environmental pollutants or illicit substances, as well as sensors for on board diagnostics to monitor engine performance or for active feedback in any process involving exhausting waste products.

  8. Electron source for a mini ion trap mass spectrometer

    DOE Patents [OSTI]

    Dietrich, D.D.; Keville, R.F.

    1995-12-19

    An ion trap is described which operates in the regime between research ion traps which can detect ions with a mass resolution of better than 1:10{sup 9} and commercial mass spectrometers requiring 10{sup 4} ions with resolutions of a few hundred. The power consumption is kept to a minimum by the use of permanent magnets and a novel electron gun design. By Fourier analyzing the ion cyclotron resonance signals induced in the trap electrodes, a complete mass spectra in a single combined structure can be detected. An attribute of the ion trap mass spectrometer is that overall system size is drastically reduced due to combining a unique electron source and mass analyzer/detector in a single device. This enables portable low power mass spectrometers for the detection of environmental pollutants or illicit substances, as well as sensors for on board diagnostics to monitor engine performance or for active feedback in any process involving exhausting waste products. 10 figs.

  9. Hanford Tank Waste - Near Source Treatment of Low Activity Waste

    SciTech Connect (OSTI)

    Ramsey, William Gene

    2013-08-15

    Abstract only. Treatment and disposition of Hanford Site waste as currently planned consists of 100+ waste retrievals, waste delivery through up to 8+ miles of dedicated, in-ground piping, centralized mixing and blending operations- all leading to pre-treatment combination and separation processes followed by vitrification at the Hanford Tank Waste Treatment and Immobilization Plant (WTP). The sequential nature of Tank Farm and WTP operations requires nominally 15-20 years of continuous operations before all waste can be retrieved from many Single Shell Tanks (SSTs). Also, the infrastructure necessary to mobilize and deliver the waste requires significant investment beyond that required for the WTP. Treating waste as closely as possible to individual tanks or groups- as allowed by the waste characteristics- is being investigated to determine the potential to 1) defer, reduce, and/or eliminate infrastructure requirements, and 2) significantly mitigate project risk by reducing the potential and impact of single point failures. The inventory of Hanford waste slated for processing and disposition as LAW is currently managed as high-level waste (HLW), i.e., the separation of fission products and other radionuclides has not commenced. A significant inventory of this waste (over 20M gallons) is in the form of precipitated saltcake maintained in single shell tanks, many of which are identified as potential leaking tanks. Retrieval and transport (as a liquid) must be staged within the waste feed delivery capability established by site infrastructure and WTP. Near Source treatment, if employed, would provide for the separation and stabilization processing necessary for waste located in remote farms (wherein most of the leaking tanks reside) significantly earlier than currently projected. Near Source treatment is intended to address the currently accepted site risk and also provides means to mitigate future issues likely to be faced over the coming decades. This paper describes the potential near source treatment and waste disposition options as well as the impact these options could have on reducing infrastructure requirements, project cost and mission schedule.

  10. Ultratough single crystal boron-doped diamond

    DOE Patents [OSTI]

    Hemley, Russell J [Carnegie Inst. for Science, Washington, DC (United States); Mao, Ho-Kwang [Carnegie Inst. for Science, Washington, DC (United States); Yan, Chih-Shiue [Carnegie Inst. for Science, Washington, DC (United States); Liang, Qi [Carnegie Inst. for Science, Washington, DC (United States)

    2015-05-05

    The invention relates to a single crystal boron doped CVD diamond that has a toughness of at least about 22 MPa m.sup.1/2. The invention further relates to a method of manufacturing single crystal boron doped CVD diamond. The growth rate of the diamond can be from about 20-100 .mu.m/h.

  11. Ames Lab 101: Single Crystal Growth

    ScienceCinema (OSTI)

    Schlagel, Deborah

    2014-06-04

    Ames Laboratory scientist Deborah Schlagel talks about the Lab's research in growing single crystals of various metals and alloys. The single crystal samples are vital to researchers' understanding of the characteristics of a materials and what gives these materials their particular properties.

  12. Memorandum, Reporting of Radiological Sealed Sources Transactions |

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

    Department of Energy Memorandum, Reporting of Radiological Sealed Sources Transactions Memorandum, Reporting of Radiological Sealed Sources Transactions December 16, 2010 The requirements for reporting transactions involving radiological sealed sources are identified in Department of Energy (DOE) Notice (N) 234.1, Reporting of Radioactive Sealed Sources. The data reported in accordance with DOE N 234.1 are maintained in the DOE Radiological Source Registry and Tracking (RSRT) database by the

  13. Thermoelectric power generator for variable thermal power source

    DOE Patents [OSTI]

    Bell, Lon E; Crane, Douglas Todd

    2015-04-14

    Traditional power generation systems using thermoelectric power generators are designed to operate most efficiently for a single operating condition. The present invention provides a power generation system in which the characteristics of the thermoelectrics, the flow of the thermal power, and the operational characteristics of the power generator are monitored and controlled such that higher operation efficiencies and/or higher output powers can be maintained with variably thermal power input. Such a system is particularly beneficial in variable thermal power source systems, such as recovering power from the waste heat generated in the exhaust of combustion engines.

  14. Method for image reconstruction of moving radionuclide source distribution

    DOE Patents [OSTI]

    Stolin, Alexander V.; McKisson, John E.; Lee, Seung Joon; Smith, Mark Frederick

    2012-12-18

    A method for image reconstruction of moving radionuclide distributions. Its particular embodiment is for single photon emission computed tomography (SPECT) imaging of awake animals, though its techniques are general enough to be applied to other moving radionuclide distributions as well. The invention eliminates motion and blurring artifacts for image reconstructions of moving source distributions. This opens new avenues in the area of small animal brain imaging with radiotracers, which can now be performed without the perturbing influences of anesthesia or physical restraint on the biological system.

  15. Compact x-ray source and panel

    DOE Patents [OSTI]

    Sampayon, Stephen E. (Manteca, CA)

    2008-02-12

    A compact, self-contained x-ray source, and a compact x-ray source panel having a plurality of such x-ray sources arranged in a preferably broad-area pixelized array. Each x-ray source includes an electron source for producing an electron beam, an x-ray conversion target, and a multilayer insulator separating the electron source and the x-ray conversion target from each other. The multi-layer insulator preferably has a cylindrical configuration with a plurality of alternating insulator and conductor layers surrounding an acceleration channel leading from the electron source to the x-ray conversion target. A power source is connected to each x-ray source of the array to produce an accelerating gradient between the electron source and x-ray conversion target in any one or more of the x-ray sources independent of other x-ray sources in the array, so as to accelerate an electron beam towards the x-ray conversion target. The multilayer insulator enables relatively short separation distances between the electron source and the x-ray conversion target so that a thin panel is possible for compactness. This is due to the ability of the plurality of alternating insulator and conductor layers of the multilayer insulators to resist surface flashover when sufficiently high acceleration energies necessary for x-ray generation are supplied by the power source to the x-ray sources.

  16. Gamma source for active interrogation

    DOE Patents [OSTI]

    Leung, Ka-Ngo; Lou, Tak Pui; Barletta, William A.

    2012-10-02

    A cylindrical gamma generator includes a coaxial RF-driven plasma ion source and target. A hydrogen plasma is produced by RF excitation in a cylindrical plasma ion generator using an RF antenna. A cylindrical gamma generating target is coaxial with the ion generator, separated by plasma and extraction electrodes which has many openings. 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.

  17. Gamma source for active interrogation

    DOE Patents [OSTI]

    Leung, Ka-Ngo (Hercules, CA); Lou, Tak Pui (Berkeley, CA); Barletta, William A. (Oakland, CA)

    2009-09-29

    A cylindrical gamma generator includes a coaxial RF-driven plasma ion source and target. A hydrogen plasma is produced by RF excitation in a cylindrical plasma ion generator using an RF antenna. A cylindrical gamma generating target is coaxial with the ion generator, separated by plasma and extraction electrodes which has many openings. 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.

  18. Relating to monitoring ion sources

    DOE Patents [OSTI]

    Orr, Christopher Henry (Calderbridge, GB); Luff, Craig Janson (Calderbridge, GB); Dockray, Thomas (Calderbridge, GB); Macarthur, Duncan Whittemore (Los Alamos, NM); Bounds, John Alan (Los Alamos, NM)

    2002-01-01

    The apparatus and method provide techniques for monitoring the position on alpha contamination in or on items or locations. The technique is particularly applicable to pipes, conduits and other locations to which access is difficult. The technique uses indirect monitoring of alpha emissions by detecting ions generated by the alpha emissions. The medium containing the ions is moved in a controlled manner frog in proximity with the item or location to the detecting unit and the signals achieved over time are used to generate alpha source position information.

  19. Compact ion source neutron generator

    DOE Patents [OSTI]

    Schenkel, Thomas; Persaud, Arun; Kapadia, Rehan; Javey, Ali; Chang-Hasnain, Constance; Rangelow, Ivo; Kwan, Joe

    2015-10-13

    A neutron generator includes a conductive substrate comprising a plurality of conductive nanostructures with free-standing tips and a source of an atomic species to introduce the atomic species in proximity to the free-standing tips. A target placed apart from the substrate is voltage biased relative to the substrate to ionize and accelerate the ionized atomic species toward the target. The target includes an element capable of a nuclear fusion reaction with the ionized atomic species to produce a one or more neutrons as a reaction by-product.

  20. Charge exchange molecular ion source

    DOE Patents [OSTI]

    Vella, Michael C.

    2003-06-03

    Ions, particularly molecular ions with multiple dopant nucleons per ion, are produced by charge exchange. An ion source contains a minimum of two regions separated by a physical barrier and utilizes charge exchange to enhance production of a desired ion species. The essential elements are a plasma chamber for production of ions of a first species, a physical separator, and a charge transfer chamber where ions of the first species from the plasma chamber undergo charge exchange or transfer with the reactant atom or molecules to produce ions of a second species. Molecular ions may be produced which are useful for ion implantation.

  1. The RHIC polarized source upgrade

    SciTech Connect (OSTI)

    Zelenski, A.; Atoian, G.; Davydenko, V.; Ivanov, A.; Kolmogorov, A.; Ritter, J.; Steski, D.; Zubets, V.

    2010-09-27

    The RHIC polarized H{sup -} ion source is being upgraded to higher intensity (5-10 mA) and polarization for use in the RHIC polarization physics program at enhanced luminosity RHIC operation. The higher beam peak intensity will allow reduction of the transverse beam emittance at injection to AGS to reduce polarization losses in AGS. There is also a planned RHIC luminosity upgrade by using the electron beam lens to compensate the beam-beam interaction at collision points. This upgrade is also essential for future BNL plans for a high-luminosity electron - proton (ion) Collider eRHIC.

  2. Cesium Delivery System for Negative Ion Source at IPR

    SciTech Connect (OSTI)

    Bansal, G.; Pandya, K.; Soni, J.; Gahlaut, A.; Parmar, K. G. [Institute for Plasma Research, Bhat, Gandhinagar, Gujarat, 382 428 (India); Bandyopadhyay, M.; Chakraborty, A.; Singh, M. J. [ITER- India, Institute for Plasma Research, A-29, Sector 25, GIDC, Gandhinagar, Gujarat (India)

    2011-09-26

    The technique of surface production of negative ions using cesium, Cs, has been efficiently exploited over the years for producing negative ion beams with increased current densities from negative ion sources used on neutral beam lines. Deposition of Cs on the source walls and the plasma grid lowers the work function and therefore enables a higher yield of H{sup -}, when hydrogen particles (H and/or H{sub x}{sup +}) strike these surfaces.A single driver RF based (100 kW, 1 MHz) negative ion source test bed, ROBIN, is being set up at IPR under a technical collaboration between IPR and IPP, Germany. The optimization of the Cs oven design to be used on this facility as well as multidriver sources is underway. The characterization experiments of such a Cs delivery system with a 1 g Cs inventory have been carried out using surface ionization technique. The experiments have been carried by delivering Cs into a vacuum chamber without plasma. The linear motion of the surface ionization detector, SID, attached with a linear motion feedthrough allows measuring the angular distribution of the Cs coming out of the oven. Based on the experimental results, a Cs oven for ROBIN has been proposed. The Cs oven design and experimental results of the prototype Cs oven are reported and discussed in the paper.

  3. Simulating variable source problems via post processing of individual particle tallies

    SciTech Connect (OSTI)

    Bleuel, D.L.; Donahue, R.J.; Ludewigt, B.A.; Vujic, J.

    2000-10-20

    Monte Carlo is an extremely powerful method of simulating complex, three dimensional environments without excessive problem simplification. However, it is often time consuming to simulate models in which the source can be highly varied. Similarly difficult are optimization studies involving sources in which many input parameters are variable, such as particle energy, angle, and spatial distribution. Such studies are often approached using brute force methods or intelligent guesswork. One field in which these problems are often encountered is accelerator-driven Boron Neutron Capture Therapy (BNCT) for the treatment of cancers. Solving the reverse problem of determining the best neutron source for optimal BNCT treatment can be accomplished by separating the time-consuming particle-tracking process of a full Monte Carlo simulation from the calculation of the source weighting factors which is typically performed at the beginning of a Monte Carlo simulation. By post-processing these weighting factors on a recorded file of individual particle tally information, the effect of changing source variables can be realized in a matter of seconds, instead of requiring hours or days for additional complete simulations. By intelligent source biasing, any number of different source distributions can be calculated quickly from a single Monte Carlo simulation. The source description can be treated as variable and the effect of changing multiple interdependent source variables on the problem's solution can be determined. Though the focus of this study is on BNCT applications, this procedure may be applicable to any problem that involves a variable source.

  4. Detecting fission from special nuclear material sources

    DOE Patents [OSTI]

    Rowland, Mark S. (Alamo, CA); Snyderman, Neal J. (Berkeley, CA)

    2012-06-05

    A neutron detector system for discriminating fissile material from non-fissile material wherein a digital data acquisition unit collects data at high rate, and in real-time processes large volumes of data directly into information that a first responder can use to discriminate materials. The system comprises counting neutrons from the unknown source and detecting excess grouped neutrons to identify fission in the unknown source. The system includes a graphing component that displays the plot of the neutron distribution from the unknown source over a Poisson distribution and a plot of neutrons due to background or environmental sources. The system further includes a known neutron source placed in proximity to the unknown source to actively interrogate the unknown source in order to accentuate differences in neutron emission from the unknown source from Poisson distributions and/or environmental sources.

  5. Multi-source ion funnel

    DOE Patents [OSTI]

    Tang, Keqi; Belov, Mikhail B.; Tolmachev, Aleksey V.; Udseth, Harold R.; Smith, Richard D.

    2005-12-27

    A method for introducing ions generated in a region of relatively high pressure into a region of relatively low pressure by providing at least two electrospray ion sources, providing at least two capillary inlets configured to direct ions generated by the electrospray sources into and through each of the capillary inlets, providing at least two sets of primary elements having apertures, each set of elements having a receiving end and an emitting end, the primary sets of elements configured to receive a ions from the capillary inlets at the receiving ends, and providing a secondary set of elements having apertures having a receiving end and an emitting end, the secondary set of elements configured to receive said ions from the emitting end of the primary sets of elements and emit said ions from said emitting end of the secondary set of elements. The method may further include the step of providing at least one jet disturber positioned within at least one of the sets of primary elements, providing a voltage, such as a dc voltage, in the jet disturber, thereby adjusting the transmission of ions through at least one of the sets of primary elements.

  6. Fluid jet electric discharge source

    DOE Patents [OSTI]

    Bender, Howard A. (Ripon, CA)

    2006-04-25

    A fluid jet or filament source and a pair of coaxial high voltage electrodes, in combination, comprise an electrical discharge system to produce radiation and, in particular, EUV radiation. The fluid jet source is composed of at least two serially connected reservoirs, a first reservoir into which a fluid, that can be either a liquid or a gas, can be fed at some pressure higher than atmospheric and a second reservoir maintained at a lower pressure than the first. The fluid is allowed to expand through an aperture into a high vacuum region between a pair of coaxial electrodes. This second expansion produces a narrow well-directed fluid jet whose size is dependent on the size and configuration of the apertures and the pressure used in the reservoir. At some time during the flow of the fluid filament, a high voltage pulse is applied to the electrodes to excite the fluid to form a plasma which provides the desired radiation; the wavelength of the radiation being determined by the composition of the fluid.

  7. A Statistical Framework for Microbial Source Attribution

    SciTech Connect (OSTI)

    Velsko, S P; Allen, J E; Cunningham, C T

    2009-04-28

    This report presents a general approach to inferring transmission and source relationships among microbial isolates from their genetic sequences. The outbreak transmission graph (also called the transmission tree or transmission network) is the fundamental structure which determines the statistical distributions relevant to source attribution. The nodes of this graph are infected individuals or aggregated sub-populations of individuals in which transmitted bacteria or viruses undergo clonal expansion, leading to a genetically heterogeneous population. Each edge of the graph represents a transmission event in which one or a small number of bacteria or virions infects another node thus increasing the size of the transmission network. Recombination and re-assortment events originate in nodes which are common to two distinct networks. In order to calculate the probability that one node was infected by another, given the observed genetic sequences of microbial isolates sampled from them, we require two fundamental probability distributions. The first is the probability of obtaining the observed mutational differences between two isolates given that they are separated by M steps in a transmission network. The second is the probability that two nodes sampled randomly from an outbreak transmission network are separated by M transmission events. We show how these distributions can be obtained from the genetic sequences of isolates obtained by sampling from past outbreaks combined with data from contact tracing studies. Realistic examples are drawn from the SARS outbreak of 2003, the FMDV outbreak in Great Britain in 2001, and HIV transmission cases. The likelihood estimators derived in this report, and the underlying probability distribution functions required to calculate them possess certain compelling general properties in the context of microbial forensics. These include the ability to quantify the significance of a sequence 'match' or 'mismatch' between two isolates; the ability to capture non-intuitive effects of network structure on inferential power, including the 'small world' effect; the insensitivity of inferences to uncertainties in the underlying distributions; and the concept of rescaling, i.e. ability to collapse sub-networks into single nodes and examine transmission inferences on the rescaled network.

  8. Narrow-band single photon emission at room temperature based on a single nitrogen-vacancy center coupled to an all-fiber-cavity

    SciTech Connect (OSTI)

    Albrecht, Roland; Bommer, Alexander; Becher, Christoph; Pauly, Christoph; Mcklich, Frank; Schell, Andreas W.; Engel, Philip; Benson, Oliver; Schrder, Tim; Reichel, Jakob

    2014-08-18

    We report the realization of a device based on a single Nitrogen-Vacancy (NV) center in diamond coupled to a fiber-cavity for use as single photon source (SPS). The device consists of two concave mirrors each directly fabricated on the facets of two optical fibers and a preselected nanodiamond containing a single NV center deposited onto one of these mirrors. Both, cavity in- and out-put are directly fiber-coupled, and the emission wavelength is easily tunable by variation of the separation of the two mirrors with a piezo-electric crystal. By coupling to the cavity, we achieve an increase of the spectral photon rate density by two orders of magnitude compared to free-space emission of the NV center. With this work, we establish a simple all-fiber based SPS with promising prospects for the integration into photonic quantum networks.

  9. Liquid metal ion source and alloy

    DOE Patents [OSTI]

    Clark, Jr., William M. (Thousand Oaks, CA); Utlaut, Mark W. (Saugus, CA); Behrens, Robert G. (Los Alamos, NM); Szklarz, Eugene G. (Los Alamos, NM); Storms, Edmund K. (Los Alamos, NM); Santandrea, Robert P. (Santa Fe, NM); Swanson, Lynwood W. (McMinnville, OR)

    1988-10-04

    A liquid metal ion source and alloy, wherein the species to be emitted from the ion source is contained in a congruently vaporizing alloy. In one embodiment, the liquid metal ion source acts as a source of arsenic, and in a source alloy the arsenic is combined with palladium, preferably in a liquid alloy having a range of compositions from about 24 to about 33 atomic percent arsenic. Such an alloy may be readily prepared by a combustion synthesis technique. Liquid metal ion sources thus prepared produce arsenic ions for implantation, have long lifetimes, and are highly stable in operation.

  10. Fast pulsed operation of a small non-radioactive electron source with continuous emission current control

    SciTech Connect (OSTI)

    Cochems, P.; Kirk, A. T.; Bunert, E.; Runge, M.; Goncalves, P.; Zimmermann, S.

    2015-06-15

    Non-radioactive electron sources are of great interest in any application requiring the emission of electrons at atmospheric pressure, as they offer better control over emission parameters than radioactive electron sources and are not subject to legal restrictions. Recently, we published a simple electron source consisting only of a vacuum housing, a filament, and a single control grid. In this paper, we present improved control electronics that utilize this control grid in order to focus and defocus the electron beam, thus pulsing the electron emission at atmospheric pressure. This allows short emission pulses and excellent stability of the emitted electron current due to continuous control, both during pulsed and continuous operations. As an application example, this electron source is coupled to an ion mobility spectrometer. Here, the pulsed electron source allows experiments on gas phase ion chemistry (e.g., ion generation and recombination kinetics) and can even remove the need for a traditional ion shutter.

  11. Design, fabrication and testing of single spoke resonators at Fermilab

    SciTech Connect (OSTI)

    Ristori, L.; Apollinari, G.; Borissov, E.; Gonin, I.V.; Khabiboulline, T.N.; Mukherjee, A.; Nicol, T.H.; Ozelis, J.; Pischalnikov, Y.; Sergatskov, D.A.; Wagner, R.; /Fermilab

    2009-09-01

    The Fermilab High Intensity Neutrino Source (HINS) linac R&D program is building a pulsed 30 MeV superconducting H- linac. The linac incorporates superconducting solenoids, high power RF vector modulators and superconducting spoke-type accelerating cavities starting at 10 MeV. This will be the first application and demonstration of any of these technologies in a low-energy, high-intensity proton/H- linac. The HINS effort is relevant to a high intensity, superconducting H- linac that might serve the next generation of neutrino physics and muon storage ring/collider experiments. In this paper we present the RF design, the mechanical design, the fabrication, the chemistry and testing of the first two SSR1 (Single Spoke Resonator type-1) prototype cavities that were built. These cavities operate at 325 MHz with {beta} = 0.21. The design and testing of the input coupler and the tuning mechanism are also discussed.

  12. Absolute calibration for a broad range single shot electron spectrometer

    SciTech Connect (OSTI)

    Glinec, Y.; Faure, J.; Guemnie-Tafo, A.; Malka, V.; Monard, H.; Larbre, J. P.; De Waele, V.; Marignier, J. L.; Mostafavi, M.

    2006-10-15

    This article gives a detailed description of a single shot electron spectrometer which was used to characterize electron beams produced by laser-plasma interaction. Contrary to conventional electron sources, electron beams from laser-plasma accelerators can produce a broad range of energies. Therefore, diagnosing these electron spectra requires specific attention and experimental development. Here, we provide an absolute calibration of the Lanex Kodak Fine screen on a laser-triggered radio frequency picosecond electron accelerator. The efficiency of scintillating screens irradiated by electron beams has never been investigated so far. This absolute calibration is then compared to charge measurements from an integrating current transformer for quasimonoenergetic electron spectra from laser-plasma interaction.

  13. Single mode pulsed dye laser oscillator

    DOE Patents [OSTI]

    Hackel, R.P.

    1992-11-24

    A single mode pulsed dye laser oscillator is disclosed. The dye laser oscillator provides for improved power efficiency by reducing the physical dimensions of the overall laser cavity, which improves frequency selection capability. 6 figs.

  14. Press Pass - Press Release - Single Top

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

    DZero finds evidence of rare single top quark; Observation marks a step closer to finding Higgs boson Batavia, Ill.--Scientists of the DZero collaboration at the Department of...

  15. North Shore Gas- Single Family Direct Install

    Broader source: Energy.gov [DOE]

    Owners of single-family homes, condos, townhomes and two-flats may be eligible for a free installation of new programmable thermostats, pipe insulation, showerheads, Compact Fluorescent Bulbs (CFLs...

  16. Pseudo-Single-Bunch Expands Experimental Scope

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

    With a relatively simple, inexpensive pulsed kicker magnet that requires only half a meter of a single straight section in the storage ring, it is possible to achieve both...

  17. Perpendicular Magnetism Unparalleled Find in Single Crystal ...

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

    order coexisting in a single sample. Article Title: Itinerant Ferromagnetism in the As 4p Conduction Band of Ba0.6K0.4Mn2As2 Identified by X-Ray Magnetic Circular Dichroism...

  18. Solenoid and monocusp ion source

    DOE Patents [OSTI]

    Brainard, J.P.; Burns, E.J.T.; Draper, C.H.

    1997-10-07

    An ion source which generates hydrogen ions having high atomic purity incorporates a solenoidal permanent magnets to increase the electron path length. In a sealed envelope, electrons emitted from a cathode traverse the magnetic field lines of a solenoid and a monocusp magnet between the cathode and a reflector at the monocusp. As electrons collide with gas, the molecular gas forms a plasma. An anode grazes the outer boundary of the plasma. Molecular ions and high energy electrons remain substantially on the cathode side of the cusp, but as the ions and electrons are scattered to the aperture side of the cusp, additional collisions create atomic ions. The increased electron path length allows for smaller diameters and lower operating pressures. 6 figs.

  19. Solenoid and monocusp ion source

    DOE Patents [OSTI]

    Brainard, John Paul (Albuquerque, NM); Burns, Erskine John Thomas (Albuquerque, NM); Draper, Charles Hadley (Albuquerque, NM)

    1997-01-01

    An ion source which generates hydrogen ions having high atomic purity incorporates a solenoidal permanent magnets to increase the electron path length. In a sealed envelope, electrons emitted from a cathode traverse the magnetic field lines of a solenoid and a monocusp magnet between the cathode and a reflector at the monocusp. As electrons collide with gas, the molecular gas forms a plasma. An anode grazes the outer boundary of the plasma. Molecular ions and high energy electrons remain substantially on the cathode side of the cusp, but as the ions and electrons are scattered to the aperture side of the cusp, additional collisions create atomic ions. The increased electron path length allows for smaller diameters and lower operating pressures.

  20. Conventional power sources for colliders

    SciTech Connect (OSTI)

    Allen, M.A.

    1987-07-01

    At SLAC we are developing high peak-power klystrons to explore the limits of use of conventional power sources in future linear colliders. In an experimental tube we have achieved 150 MW at 1 ..mu..sec pulse width at 2856 MHz. In production tubes for SLAC Linear Collider (SLC) we routinely achieve 67 MW at 3.5 ..mu..sec pulse width and 180 pps. Over 200 of the klystrons are in routine operation in SLC. An experimental klystron at 8.568 GHz is presently under construction with a design objective of 30 MW at 1 ..mu..sec. A program is starting on the relativistic klystron whose performance will be analyzed in the exploration of the limits of klystrons at very short pulse widths.

  1. Single particle imaging: opportunities and challenges | Stanford

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

    Synchrotron Radiation Lightsource Single particle imaging: opportunities and challenges Thursday, December 17, 2015 - 3:00pm SLAC, Redtail Hawk Conference Room 108A Speaker: Ivan Vartaniants, DESY Program Description X-ray free-electron lasers (XFELs) may allow us to employ the single-particle imaging (SPI) method to determine the structure of macromolecules that do not form stable crystals [1]. Ultrashort pulses of 10 fs and less allow us to outrun complete disintegration by Coulomb

  2. Colorado Nonpoint Source Website | Open Energy Information

    Open Energy Info (EERE)

    Source Website Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Colorado Nonpoint Source Website Abstract This is the website of the Colorado...

  3. Vermont Source Testing Review | Open Energy Information

    Open Energy Info (EERE)

    ReviewLegal Abstract This form initiates the review and approval process for required studies and testing to be conducted on source(s) to serve Proposed or Existing Public...

  4. ThermaSource Inc | Open Energy Information

    Open Energy Info (EERE)

    ThermaSource Inc Jump to: navigation, search Name: ThermaSource Inc Place: Santa Rosa, California Zip: 95403 Sector: Geothermal energy, Services Product: A US-based company...

  5. Insertion Devices & Brilliance | Advanced Photon Source

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

    light sources. Some, like the Advanced Light Source in California and the SuperACO in France, provide radiation in the ultravioletsoft x-ray part of the spectrum. The 7-GeV APS...

  6. Problems with packaged sources in foreign countries

    SciTech Connect (OSTI)

    Abeyta, Cristy L; Matzke, James L; Zarling, John; Tompkin, J. Andrew

    2010-01-01

    The Global Threat Reduction Initiative's (GTRI) Off-Site Source Recovery Project (OSRP), which is administered by the Los Alamos National Laboratory (LANL), removes excess, unwanted, abandoned, or orphan radioactive sealed sources that pose a potential threat to national security, public health, and safety. In total, GTRI/OSRP has been able to recover more than 25,000 excess and unwanted sealed sources from over 825 sites. In addition to transuranic sources, the GTRI/OSRP mission now includes recovery of beta/gamma emitting sources, which are of concern to both the U.S. government and the International Atomic Energy Agency (IAEA). This paper provides a synopsis of cooperative efforts in foreign countries to remove excess and unwanted sealed sources by discussing three topical areas: (1) The Regional Partnership with the International Atomic Energy Agency; (2) Challenges in repatriating sealed sources; and (3) Options for repatriating sealed sources.

  7. Giant increase in critical current density of KxFe2-ySe₂ single crystals

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

    Lei, Hechang; Petrovic, C.

    2011-12-28

    The critical current density Jabc of KxFe2-ySe₂ single crystals can be enhanced by more than one order of magnitude, up to ~2.1×10⁴ A/cm² by the post annealing and quenching technique. A scaling analysis reveals the universal behavior of the normalized pinning force as a function of the reduced field for all temperatures, indicating the presence of a single vortex pinning mechanism. The main pinning sources are three-dimensional (3D) point-like normal cores. The dominant vortex interaction with pinning centers is via spatial variations in critical temperature Tc (“δTc pinning”).

  8. North Village Ground Source Heat Pumps

    Broader source: Energy.gov [DOE]

    Overview: Installation of Ground Source Heat Pumps. Replacement of Aging Heat Pumps. Alignment with Furmans Sustainability Goals.

  9. Laser-Compton Light Source Technology

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

    Laser-Compton Light Source Technology Laser-Compton light source technology enables production of mono-energetic gamma rays and x rays. In the gamma-ray regime, these sources enable new, isotope-specific nuclear materials detection systems and photon-based study of nuclear processes (nuclear photonics). Laser-Compton light sources and related nuclear missions concepts were conceived of and realized over the course of the last decade at LLNL. Created by Compton scattering short-duration laser

  10. Memorandum, Reporting of Radiological Sealed Sources Transactions

    Broader source: Energy.gov [DOE]

    The requirements for reporting transactions involving radiological sealed sources are identified in Department of Energy (DOE) Notice (N) 234.1, Reporting of Radioactive Sealed Sources. The data reported in accordance with DOE N 234.1 are maintained in the DOE Radiological Source Registry and Tracking (RSRT) database by the Office of Information Management, within the Office of Environment, Health, Safety and Security.

  11. WAC 173-400-110 - New Source Review for Sources and Portable...

    Open Energy Info (EERE)

    SourcesLegal Abstract Sets forth statutory requirements for review of new sources of air pollution. Published NA Year Signed or Took Effect 2012 Legal Citation WAC...

  12. Single and double superimposing interferometer systems

    DOE Patents [OSTI]

    Erskine, David J.

    2000-01-01

    Interferometers which can imprint a coherent delay on a broadband uncollimated beam are described. The delay value can be independent of incident ray angle, allowing interferometry using uncollimated beams from common extended sources such as lamps and fiber bundles, and facilitating Fourier Transform spectroscopy of wide angle sources. Pairs of such interferometers matched in delay and dispersion can measure velocity and communicate using ordinary lamps, wide diameter optical fibers and arbitrary non-imaging paths, and not requiring a laser.

  13. Ion source based on the cathodic arc

    DOE Patents [OSTI]

    Sanders, D.M.; Falabella, S.

    1994-02-01

    A cylindrically symmetric arc source to produce a ring of ions which leave the surface of the arc target radially and are reflected by electrostatic fields present in the source to a point of use, such as a part to be coated, is described. An array of electrically isolated rings positioned in the source serves the dual purpose of minimizing bouncing of macroparticles and providing electrical insulation to maximize the electric field gradients within the source. The source also includes a series of baffles which function as a filtering or trapping mechanism for any macroparticles. 3 figures.

  14. Ion source based on the cathodic arc

    DOE Patents [OSTI]

    Sanders, David M. (Livermore, CA); Falabella, Steven (Livermore, CA)

    1994-01-01

    A cylindrically symmetric arc source to produce a ring of ions which leave the surface of the arc target radially and are reflected by electrostatic fields present in the source to a point of use, such as a part to be coated. An array of electrically isolated rings positioned in the source serves the dual purpose of minimizing bouncing of macroparticles and providing electrical insulation to maximize the electric field gradients within the source. The source also includes a series of baffles which function as a filtering or trapping mechanism for any macroparticles.

  15. International workshop on cold neutron sources

    SciTech Connect (OSTI)

    Russell, G.J.; West, C.D. )

    1991-08-01

    The first meeting devoted to cold neutron sources was held at the Los Alamos National Laboratory on March 5--8, 1990. Cosponsored by Los Alamos and Oak Ridge National Laboratories, the meeting was organized as an International Workshop on Cold Neutron Sources and brought together experts in the field of cold-neutron-source design for reactors and spallation sources. Eighty-four people from seven countries attended. Because the meeting was the first of its kind in over forty years, much time was spent acquainting participants with past and planned activities at reactor and spallation facilities worldwide. As a result, the meeting had more of a conference flavor than one of a workshop. The general topics covered at the workshop included: Criteria for cold source design; neutronic predictions and performance; energy deposition and removal; engineering design, fabrication, and operation; material properties; radiation damage; instrumentation; safety; existing cold sources; and future cold sources.

  16. Tapered monocapillary-optics for point source applications

    DOE Patents [OSTI]

    Hirsch, Gregory (1277 Linda Mar Center, Suite 128, Pacifica, CA 94044)

    2000-01-01

    A glass or metal wire is precisely etched to form the paraboloidal or ellipsoidal shape of the final desired capillary optic. This shape is created by carefully controlling the withdrawal speed of the wire from an etchant bath. In the case of a complete ellipsoidal capillary, the etching operation is performed twice in opposite directions on adjacent wire segments. The etched wire undergoes a subsequent operation to create an extremely smooth surface. This surface is coated with a layer of material which is selected to maximize the reflectivity of the radiation. This reflective surface may be a single layer for wideband reflectivity, or a multilayer coating for optimizing the reflectivity in a narrower wavelength interval. The coated wire is built up with a reinforcing layer, typically by a plating operation. The initial wire is removed by either an etching procedure or mechanical force. Prior to removing the wire, the capillary is typically bonded to a support substrate. One option for attaching the wire to the substrate produces a monolithic structure by essentially burying it under a layer of plating which covers both the wire and the substrate. The capillary optic is used for efficiently collecting and redirecting the divergent radiation from a source which could be the anode of an x-ray tube, a plasma source, the fluorescent radiation from an electron microprobe, or some other source of radiation.

  17. Numerical modeling of the SNS H{sup ?} ion source

    SciTech Connect (OSTI)

    Veitzer, Seth A.; Beckwith, Kristian R. C.; Kundrapu, Madhusudhan; Stoltz, Peter H.

    2015-04-08

    Ion source rf antennas that produce H- ions can fail when plasma heating causes ablation of the insulating coating due to small structural defects such as cracks. Reducing antenna failures that reduce the operating capabilities of the Spallation Neutron Source (SNS) accelerator is one of the top priorities of the SNS H- Source Program at ORNL. Numerical modeling of ion sources can provide techniques for optimizing design in order to reduce antenna failures. There are a number of difficulties in developing accurate models of rf inductive plasmas. First, a large range of spatial and temporal scales must be resolved in order to accurately capture the physics of plasma motion, including the Debye length, rf frequencies on the order of tens of MHz, simulation time scales of many hundreds of rf periods, large device sizes on tens of cm, and ion motions that are thousands of times slower than electrons. This results in large simulation domains with many computational cells for solving plasma and electromagnetic equations, short time steps, and long-duration simulations. In order to reduce the computational requirements, one can develop implicit models for both fields and particle motions (e.g. divergence-preserving ADI methods), various electrostatic models, or magnetohydrodynamic models. We have performed simulations using all three of these methods and have found that fluid models have the greatest potential for giving accurate solutions while still being fast enough to perform long timescale simulations in a reasonable amount of time. We have implemented a number of fluid models with electromagnetics using the simulation tool USim and applied them to modeling the SNS H- ion source. We found that a reduced, single-fluid MHD model with an imposed magnetic field due to the rf antenna current and the confining multi-cusp field generated increased bulk plasma velocities of > 200 m/s in the region of the antenna where ablation is often observed in the SNS source. We report here on comparisons of simulated plasma parameters and code performance using more accurate physical models, such as two-temperature extended MHD models, for both a related benchmark system describing a inductively coupled plasma reactor, and for the SNS ion source. We also present results from scaling studies for mesh generation and solvers in the USim simulation code.

  18. Materials Physics and Engineering | Advanced Photon Source

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

    and wide-angle x-ray scattering (HE-SAXSWAXS). HEDM reveals information on single grains (size, shape, orientation, strain) within polycrystalline aggregates, while HE-SAXS...

  19. Standard Work Specifications for Single-Family Home Energy Upgrades Summary (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-11-01

    The U.S. Department of Energy (DOE), the National Renewable Energy Laboratory (NREL) and numerous industry stakeholders developed the Standard Work Specifications for Single-Family Home Energy Upgrades to define the minimum requirements for high-quality residential energy upgrades. Today, the Standard Work Specifications provide a unique source for defining high-quality home energy upgrades, establishing clear expectations for homeowners, contractors, trainers, workers, program administrators, and organizations that provide financing for energy upgrades.

  20. Platinum Nanoclusters Out-Perform Single Crystals

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

    Platinum Nanoclusters Out-Perform Single Crystals Platinum Nanoclusters Out-Perform Single Crystals Print Wednesday, 27 October 2010 00:00 When it comes to metal catalysts, platinum is the standard. However, at about $2,000 an ounce, the high cost of the raw material presents major challenges for the future wide-scale use of platinum in fuel cells. Berkeley Lab research suggests that one possible way to meet these challenges is to think small. Researchers from Berkeley Lab's Materials Sciences

  1. ARM - Field Campaign - Single Column Model IOP

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

    govCampaignsSingle Column Model IOP Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Single Column Model IOP 1999.03.31 - 1999.04.01 Lead Scientist : Judith Curry Summary AEROSONDE SUMMARY Before going into the field with the Aerosonde, we were operating under the following constraints and known concerns: 1) strict flight patterns imposed by the FAA, primarily owing to the lack of a strobe light and transponder on the Aerosonde 2) the

  2. Quantifying sources, transport, deposition, and radiative forcing of black carbon over the Himalayas and Tibetan Plateau

    SciTech Connect (OSTI)

    Zhang, Rudong; Wang, Hailong; Qian, Yun; Rasch, Philip J.; Easter, Richard C.; Ma, Po-Lun; Singh, Balwinder; Huang, Jianping; Fu, Qiang

    2015-01-01

    Black carbon (BC)particles over the Himalayas and Tibetan Plateau (HTP), both airborne and those deposited on snow, have been shown to affect snowmelt and glacier retreat. Since BC over the HTP may originate from a variety of geographical regions and emission sectors, it is essential to quantify the source-receptor relationships of BC in order to understand the contributions of natural and anthropogenic emissions and provide guidance for potential mitigation actions. In this study, we use the Community Atmosphere Model version 5 (CAM5) with a newly developed source tagging technique, nudged towards the MERRA meteorological reanalysis, to characterize the fate of BC particles emitted from various geographical regions and sectors. Evaluated against observations over the HTP and surrounding regions, the model simulation shows a good agreement in the seasonal variation of the near-surface airborne BC concentrations, providing confidence to use this modeling framework for characterizing BC source- receptor relationships. Our analysis shows that the relative contributions from different geographical regions and source sectors depend on seasons and the locations in the HTP. The largest contribution to annual mean BC burden and surface deposition in the entire HTP region is from biofuel and biomass (BB) emissions in South Asia, followed by fossil fuel (FF) emissions from South Asia, then FF from East Asia. The same roles hold for all the seasonal means except for the summer when East Asia FF becomes more important. For finer receptor regions of interest, South Asia BB and FF have the largest impact on BC in Himalayas and Central Tibetan Plateau, while East Asia FF and BB contribute the most to Northeast Plateau in all seasons and Southeast Plateau in the summer. Central Asia and Middle East FF emissions have relatively more important contributions to BC reaching Northwest Plateau, especially in the summer. Although the HTP local emissions only contribute about 10% of BC in the HTP, this contribution is extremely sensitive to changes in the local emissions. Lastly, we show that the annual mean radiative forcing (0.42 W m-2) due to BC in snow outweighs the BC dimming effect-0.3 W m-2)at the surface over the HTP, although the mean BC-in- snow forcing is likely overestimated. We find strong seasonal and sub -region variation with a peak value of 5W m-2 in the spring over Northwest Plateau. The annual mean dust-in-snow forcing is comparable to that of BC over the entire HTP but significantly larger than BC over the North east Plateau. Such a large forcing of BC in snow is sufficient to cause earlier snow melting and potentially contribute to the acceleration of glacier retreat

  3. Nano-soldering to single atomic layer

    DOE Patents [OSTI]

    Girit, Caglar O. (Berkeley, CA); Zettl, Alexander K. (Kensington, CA)

    2011-10-11

    A simple technique to solder submicron sized, ohmic contacts to nanostructures has been disclosed. The technique has several advantages over standard electron beam lithography methods, which are complex, costly, and can contaminate samples. To demonstrate the soldering technique graphene, a single atomic layer of carbon, has been contacted, and low- and high-field electronic transport properties have been measured.

  4. Single-field α-attractors

    SciTech Connect (OSTI)

    Linde, Andrei

    2015-05-05

    I describe a simple class of α-attractors, generalizing the single-field GL model of inflation in supergravity. The new class of models is defined for 0<α≲1, providing a good match to the present cosmological data. I also present a generalized version of these models which can describe not only inflation but also dark energy and supersymmetry breaking.

  5. Multifrequency, single pass free electron laser

    DOE Patents [OSTI]

    Szoke, Abraham (Fremont, CA); Prosnitz, Donald (Walnut Creek, CA)

    1985-01-01

    A method for simultaneous amplification of laser beams with a sequence of frequencies in a single pass, using a relativistic beam of electrons grouped in a sequence of energies corresponding to the sequence of laser beam frequencies. The method allows electrons to pass from one potential well or "bucket" to another adjacent bucket, thus increasing efficiency of trapping and energy conversion.

  6. Spent Sealed Sources Management in Switzerland - 12011

    SciTech Connect (OSTI)

    Beer, H.F.

    2012-07-01

    Information is provided about the international recommendations for the safe management of disused and spent sealed radioactive sources wherein the return to the supplier or manufacturer is encouraged for large radioactive sources. The legal situation in Switzerland is described mentioning the demand of minimization of radioactive waste as well as the situation with respect to the interim storage facility at the Paul Scherrer Institute (PSI). Based on this information and on the market situation with a shortage of some medical radionuclides the management of spent sealed sources is provided. The sources are sorted according to their activity in relation to the nuclide-specific A2-value and either recycled as in the case of high active sources or conditioned as in the case for sources with lower activity. The results are presented as comparison between recycled and conditioned activity for three selected nuclides, i.e. Cs-137, Co-60 and Am-241. (author)

  7. RF-Plasma Source Commissioning in Indian Negative Ion Facility

    SciTech Connect (OSTI)

    Singh, M. J.; Bandyopadhyay, M.; Yadava, Ratnakar; Chakraborty, A. K.; Bansal, G.; Gahlaut, A.; Soni, J.; Kumar, Sunil; Pandya, K.; Parmar, K. G.; Sonara, J.; Kraus, W.; Heinemann, B.; Riedl, R.; Obermayer, S.; Martens, C.; Franzen, P.; Fantz, U.

    2011-09-26

    The Indian program of the RF based negative ion source has started off with the commissioning of ROBIN, the inductively coupled RF based negative ion source facility under establishment at Institute for Plasma research (IPR), India. The facility is being developed under a technology transfer agreement with IPP Garching. It consists of a single RF driver based beam source (BATMAN replica) coupled to a 100 kW, 1 MHz RF generator with a self excited oscillator, through a matching network, for plasma production and ion extraction and acceleration. The delivery of the RF generator and the RF plasma source without the accelerator, has enabled initiation of plasma production experiments. The recent experimental campaign has established the matching circuit parameters that result in plasma production with density in the range of 0.5-1x10{sup 18}/m{sup 3}, at operational gas pressures ranging between 0.4-1 Pa. Various configurations of the matching network have been experimented upon to obtain a stable operation of the set up for RF powers ranging between 25-85 kW and pulse lengths ranging between 4-20 s. It has been observed that the range of the parameters of the matching circuit, over which the frequency of the power supply is stable, is narrow and further experiments with increased number of turns in the coil are in the pipeline to see if the range can be widened. In this paper, the description of the experimental system and the commissioning data related to the optimisation of the various parameters of the matching network, to obtain stable plasma of required density, are presented and discussed.

  8. HTGR Mechanistic Source Terms White Paper

    SciTech Connect (OSTI)

    Wayne Moe

    2010-07-01

    The primary purposes of this white paper are: (1) to describe the proposed approach for developing event specific mechanistic source terms for HTGR design and licensing, (2) to describe the technology development programs required to validate the design methods used to predict these mechanistic source terms and (3) to obtain agreement from the NRC that, subject to appropriate validation through the technology development program, the approach for developing event specific mechanistic source terms is acceptable

  9. Industry Group Learns About Light Source Opportunities

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

    Industry Group Learns About Light Source Opportunities Industry Group Learns About Light Source Opportunities Print Tuesday, 25 September 2012 08:45 On Monday, September 24, the Silicon Valley Leadership Group (SVLG) hosted a meeting to introduce its members to the area's light sources and how they help advance innovation and promote economic competitiveness. The event was sponsored by Congresswomen Zoe Lofgren and Anna Eshoo together with Berkeley Lab (LBNL) and SLAC National Accelerator

  10. Energy Intensity Indicators: Commercial Source Energy Consumption |

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

    Department of Energy Commercial Source Energy Consumption Energy Intensity Indicators: Commercial Source Energy Consumption Figure C1 below reports as index numbers over the period 1970 through 2011: 1) commercial building floor space, 2) energy use based on source energy consumption, 3) energy intensity, and 4) the year-to-year influence of weather. Activity: Since 1970, the quantity of commercial floor space has nearly doubled, with about half of that increase occurring after 1985. There

  11. Energy Intensity Indicators: Residential Source Energy Consumption |

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

    Department of Energy Residential Source Energy Consumption Energy Intensity Indicators: Residential Source Energy Consumption Figure R1 below reports as index numbers over the period 1970 through 2011: 1) the number of U.S. households, 2) the average size of those housing units, 3) residential source energy consumption, 4) energy intensity, and 5) an overall structural component that represents "other explanatory factors." Activity: Since 1970, the number of household (occupied

  12. Environmental Technology Verification of Mobile Sources Control

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

    Technologies | Department of Energy Environmental Technology Verification of Mobile Sources Control Technologies Environmental Technology Verification of Mobile Sources Control Technologies 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_elion.pdf More Documents & Publications EPA Mobile Source Rule Update Efficient Use of Natural Gas Based Fuels in Heavy-Duty Engines The California Demonstration Program for Control of PM from Diesel

  13. Promising Technology: Ground Source Heat Pumps

    Broader source: Energy.gov [DOE]

    Ground source heat pumps (GSHP) use the constant temperature of the Earth as the heat exchange medium instead of the outside air temperature. During the winter, a GSHP uses the ground as a heat source to provide heating, and during the summer, a GSHP uses the ground as a heat sink to provide cooling. Although more expensive than air-source heat pumps, GSHP’s are much more efficient, especially in cold temperatures.

  14. Coherent diffractive imaging of single layer microspheres

    SciTech Connect (OSTI)

    Dinh, Khuong Ba Le, Hoang Vu; Van Vuong, Cuong; Hannaford, Peter; Van Dao, Lap; Ong, Adabelle X. P.; Henderson, Clare A.; Smith, Trevor A.

    2015-04-28

    We report the extreme ultraviolet (XUV) coherent diffractive imaging of silica/polymer micro-particle samples illuminated by a table-top high harmonic generation source at the wavelength of 30?nm. We achieve images constructed from diffraction patterns acquired with 13??m 13??m samples comprising a sparse monolayer of spherical silica and polymer micro-particles. Successful reconstructed image of an aperiodic sample using this HHG source will open the path to the realization of a compact soft x-ray microscope to investigate other complex absorbing samples.

  15. The Standard Work Specifications for Single-Family Home Energy...

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

    The Standard Work Specifications for Single-Family Home Energy Upgrades are now available at your fingertips The Standard Work Specifications for Single-Family Home Energy ...

  16. Standard Work Specifications for Single-Family Home Energy Upgrades...

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

    Standard Work Specifications for Single-Family Home Energy Upgrades Summary Fact Sheet Standard Work Specifications for Single-Family Home Energy Upgrades Summary Fact Sheet The ...

  17. Ex Parte Communication re Energy Conservation Standards for Single...

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

    EERE-2011-BT-TP-0024 ISSUANCE 2015-8-28: Energy Conservation Program: Energy Conservation Standards for Single Package Vertical Air Conditioners and Single Package Vertical Heat ...

  18. Luminescent single-walled carbon nanotube/silica composite materials...

    Office of Scientific and Technical Information (OSTI)

    Luminescent single-walled carbon nanotubesilica composite materials Citation Details In-Document Search Title: Luminescent single-walled carbon nanotubesilica composite materials...

  19. Review of Methods to Probe Single Cell Metabolism and Bioenergetics...

    Office of Scientific and Technical Information (OSTI)

    recent developments in single cell manipulation, as well as pioneering ones. First, flow-through methods will be discussed, namely methods in which the single cells flow...

  20. FLOP Counts for "Small" Single-Node Miniapplication Tests

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

    FLOP Counts for "Small" Single-Node Miniapplication Tests FLOP Counts for "Small" Single-Node Miniapplication Tests These data, obtained using the NERSC Hopper system, are provided...

  1. Experimental Study of Single Spin Asymmetries and TMDs (Conference...

    Office of Scientific and Technical Information (OSTI)

    Conference: Experimental Study of Single Spin Asymmetries and TMDs Citation Details In-Document Search Title: Experimental Study of Single Spin Asymmetries and TMDs You are...

  2. Experimental Study of Single Spin Asymmetries and TMDs (Conference...

    Office of Scientific and Technical Information (OSTI)

    Experimental Study of Single Spin Asymmetries and TMDs Citation Details In-Document Search Title: Experimental Study of Single Spin Asymmetries and TMDs This presentation covers:...

  3. Transient Dynamometer Testing of a Single Leg NOx Adsorber Combined...

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

    Single Leg NOx Adsorber Combined with a Fuel Processor for Enhanced NOx Control Transient Dynamometer Testing of a Single Leg NOx Adsorber Combined with a Fuel Processor for...

  4. Thermal-hydrologic-mechanical behavior of single fractures in...

    Office of Scientific and Technical Information (OSTI)

    Thermal-hydrologic-mechanical behavior of single fractures in EGS reservoirs Citation Details In-Document Search Title: Thermal-hydrologic-mechanical behavior of single fractures ...

  5. Single-valley engineering in graphene superlattices (Journal...

    Office of Scientific and Technical Information (OSTI)

    Single-valley engineering in graphene superlattices This content will become publicly available on June 14, 2016 Prev Next Title: Single-valley engineering in graphene...

  6. Factors Affecting HCCI Combustion Phasing for Fuels with Single...

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

    Affecting HCCI Combustion Phasing for Fuels with Single- and Dual-Stage Chemistry Factors Affecting HCCI Combustion Phasing for Fuels with Single- and Dual-Stage Chemistry 2004 ...

  7. Microstructural Effects on Void Nucleation in Single-Phase Copper...

    Office of Scientific and Technical Information (OSTI)

    Microstructural Effects on Void Nucleation in Single-Phase Copper Polycrystals Citation Details In-Document Search Title: Microstructural Effects on Void Nucleation in Single-Phase...

  8. Mapping protein collapse with single molecule fluorescence and...

    Office of Scientific and Technical Information (OSTI)

    single molecule fluorescence and kinetic synchrotron radiation circular dichroism spectroscopy Citation Details In-Document Search Title: Mapping protein collapse with single...

  9. Graphene-silicon layered structures on single-crystalline Ir...

    Office of Scientific and Technical Information (OSTI)

    Accepted Manuscript: Graphene-silicon layered structures on single-crystalline Ir(111) thin films Prev Next Title: Graphene-silicon layered structures on single-crystalline...

  10. Sorted Single-Walled Carbon Nanotube Films for Transparent Electrodes...

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

    Sorted Single-Walled Carbon Nanotube Films for Transparent Electrodes in Organic Solar Cells Home > Research > ANSER Research Highlights > Sorted Single-Walled Carbon Nanotube...

  11. Ultrafast Optical Microscopy of Single Monolayer Molybdenum Disulfide...

    Office of Scientific and Technical Information (OSTI)

    Ultrafast Optical Microscopy of Single Monolayer Molybdenum Disulfide Flakes Citation Details In-Document Search Title: Ultrafast Optical Microscopy of Single Monolayer Molybdenum ...

  12. Alternative Energy Sources - An Interdisciplinary Module for...

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

    An Interdisciplinary Module for Energy Education Alternative Energy Sources - An Interdisciplinary Module for Energy Education Below is information about the student activity...

  13. Alternative Energy Sources -- An Interdisciplinary Module for...

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

    - An Interdisciplinary Module for Energy Education Alternative Energy Sources -- An Interdisciplinary Module for Energy Education Find activities focused on renewable energy ...

  14. Oregon Nonpoint Source Program Implementation Webpage | Open...

    Open Energy Info (EERE)

    Implementation Webpage Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Oregon Nonpoint Source Program Implementation Webpage Abstract Provides...

  15. Dark matter annihilation or unresolved astrophysical sources...

    Office of Scientific and Technical Information (OSTI)

    origin of the cosmic gamma-ray background Citation Details In-Document Search Title: Dark matter annihilation or unresolved astrophysical sources? Anisotropy probe of the origin ...

  16. Prestressed glass, aezoelectric electrical power source

    DOE Patents [OSTI]

    Newson, Melvin M.

    1976-01-01

    An electrical power source which comprises a body of prestressed glass having a piezoelectric transducer supported on the body in direct mechanical coupling therewith.

  17. Alaska Local Ordinances Governing Nonpoint Source Pollution ...

    Open Energy Info (EERE)

    Not Provided DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for Alaska Local Ordinances Governing Nonpoint Source Pollution Citation Alaska...

  18. Green Source Consulting | Open Energy Information

    Open Energy Info (EERE)

    Consulting Jump to: navigation, search Name: Green Source Consulting Place: Wien Vienna, Austria Zip: 1010 Product: Private Austrian project developer with a focus in the Central...

  19. Carbothermic reduction with parallel heat sources

    DOE Patents [OSTI]

    Troup, Robert L. (Murrysville, PA); Stevenson, David T. (Washington Township, Washington County, PA)

    1984-12-04

    Disclosed are apparatus and method of carbothermic direct reduction for producing an aluminum alloy from a raw material mix including aluminum oxide, silicon oxide, and carbon wherein parallel heat sources are provided by a combustion heat source and by an electrical heat source at essentially the same position in the reactor, e.g., such as at the same horizontal level in the path of a gravity-fed moving bed in a vertical reactor. The present invention includes providing at least 79% of the heat energy required in the process by the electrical heat source.

  20. Integrating multiple data sources for malware classification

    DOE Patents [OSTI]

    Anderson, Blake Harrell; Storlie, Curtis B; Lane, Terran

    2015-04-28

    Disclosed herein are representative embodiments of tools and techniques for classifying programs. According to one exemplary technique, at least one graph representation of at least one dynamic data source of at least one program is generated. Also, at least one graph representation of at least one static data source of the at least one program is generated. Additionally, at least using the at least one graph representation of the at least one dynamic data source and the at least one graph representation of the at least one static data source, the at least one program is classified.

  1. DOE & Strategic Sourcing "New Challenges, New Opportunities"

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

    NNSA Model DOE Future Activities Bill Marks, Commodity Manager, NNSA Supply Chain Management ... NNSA eStoreeProcurement - Supplier Performance Management Strategic sourcing ...

  2. ION SOURCE WITH SPACE CHARGE NEUTRALIZATION

    DOE Patents [OSTI]

    Flowers, J.W.; Luce, J.S.; Stirling, W.L.

    1963-01-22

    This patent relates to a space charge neutralized ion source in which a refluxing gas-fed arc discharge is provided between a cathode and a gas-fed anode to provide ions. An electron gun directs a controlled, monoenergetic electron beam through the discharge. A space charge neutralization is effected in the ion source and accelerating gap by oscillating low energy electrons, and a space charge neutralization of the source exit beam is effected by the monoenergetic electron beam beyond the source exit end. The neutralized beam may be accelerated to any desired energy at densities well above the limitation imposed by Langmuir-Child' s law. (AEC)

  3. Astronomy Particle Physics Light Sources Genomics

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

    1 - 2 Astronomy Particle Physics Light Sources Genomics Climate * Big Data Software - Broad ecosystem of capabilities and technologies - Research and evaluate - Customize and...

  4. Mission and Goals | Advanced Photon Source

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

    Mission and Goals The mission of the Advanced Photon Source (APS) is to deliver world-class science and technology by operating an outstanding synchrotron radiation research...

  5. Table Definitions, Sources, and Explanatory Notes

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    ... This "green" coke may be sold as is or further purified by calcining. Petroleum ... For definitions of related energy terms, refer to the EIA Energy Glossary. Sources Energy ...

  6. Table Definitions, Sources, and Explanatory Notes

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Underground Storage Injections Gas from extraneous sources put into underground storage reservoirs. For definitions of related energy terms, refer to the EIA Energy Glossary. ...

  7. Polarized {sup 3}He{sup ?} ion source with hyperfine state selection

    SciTech Connect (OSTI)

    Dudnikov, V.; Morozov, V.; Dudnikov, A.

    2015-04-08

    High beam polarization is essential to the scientific productivity of a collider. Polarized {sup 3}He ions are an essential part of the nuclear physics programs at existing and future ion-ion and electron-ion colliders such as BNL's RHIC and eRHIC and JLab's ELIC. Ion sources with performance exceeding that achieved today are a key requirement for the development of these next generation high-luminosity high-polarization colliders. The development of high-intensity high-brightness arc-discharge ion sources at the Budker Institute of Nuclear Physics (BINP) has opened up an opportunity for realization of a new type of a polarized {sup 3}He{sup ?} ion source. This report discusses a polarized {sup 3}He{sup ?} ion source based on the large difference of extra-electron auto-detachment lifetimes of the different {sup 3}He{sup ?} ion hyperfine states. The highest momentum state of 5/2 has the largest lifetime of ? ? 350 s while the lower momentum states have lifetimes of ? ~ 10 s. By producing {sup 3}He{sup ?} ion beam composed of only the |5/2, 5/2> hyperfine states and then quenching one of the states by an RF resonant field, {sup 3}He{sup ?} beam polarization of 90% can be achieved. Such a method of polarized {sup 3}He{sup ?} production has been considered before; however, due to low intensities of the He{sup +} ion sources existing at that time, it was not possible to produce any interesting intensity of polarized {sup 3}He{sup ?} ions. The high-brightness arc-discharge ion source developed at BINP can produce a high-brightness {sup 3}He{sup +} beam with an intensity of up to 2 A allowing for selection of up to ?1-4 mA of {sup 3}He{sup ?} ions with ?90% polarization. The high gas efficiency of an arc-discharge source is important due to the high cost of {sup 3}He gas. Some features of such a PIS as well as prototype designs are considered. An integrated {sup 3}He{sup ?} ion source design providing high beam polarization could be prepared using existing BNL equipment with incorporation of new designs of the 1) arc discharge plasma generator, 2) extraction system, 3) charge exchange jet, and 4) magnetic separation system.

  8. In situ electrical characterization of palladium-based single electron transistors made by electromigration technique

    SciTech Connect (OSTI)

    Arzubiaga, L.; Llopis, R.; Golmar, F.; Casanova, F.; Hueso, L. E.

    2014-11-15

    We report the fabrication of single electron transistors (SETs) by feedback-controlled electromigration of palladium and palladium-nickel alloy nanowires. We have optimized a gradual electromigration process for obtaining devices consisting of three terminals (source, drain and gate electrodes), which are capacitively coupled to a metallic cluster of nanometric dimensions. This metal nanocluster forms into the inter-electrode channel during the electromigration process and constitutes the active element of each device, acting as a quantum dot that rules the electron flow between source and drain electrodes. The charge transport of the as-fabricated devices shows Coulomb blockade characteristics and the source to drain conductance can be modulated by electrostatic gating. We have thus achieved the fabrication and in situ measurement of palladium-based SETs inside a liquid helium cryostat chamber.

  9. Interaction of plasmas in laser ion source with double laser system

    SciTech Connect (OSTI)

    Fuwa, Y.; Ikeda, S.; Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, Yokohama, Tokyo ; Kumaki, M.; Research Institute for Science and Engineering, Waseda University, Shinjuku, Tokyo ; Sekine, M.; Department of Nuclear Engineering, Tokyo Institute of Technology, Meguro, Tokyo ; Cinquegrani, D.; Romanelli, M.; Kanesue, T.; Okamura, M.; Iwashita, Y.

    2014-02-15

    Multiple laser shots could be used to elongate an ion beam pulse width or to intensify beam current from laser ion sources. In order to confirm the feasibility of the multiple shot scheme, we investigated the properties of plasmas produced by double laser shots. We found that when the interval of the laser shots is shorter than 10 ?s, the ion current profile had a prominent peak, which is not observed in single laser experiments. The height of this peak was up to five times larger than that of single laser experiment.

  10. Environmental Assessment Radioactive Source Recovery Program

    SciTech Connect (OSTI)

    1995-12-20

    In a response to potential risks to public health and safety, the U.S. Department of Energy (DOE) is evaluating the recovery of sealed neutron sources under the Radioactive Source Recovery Program (RSRP). This proposed program would enhance the DOE`s and the U.S. Nuclear Regulatory Commission`s (NRC`s) joint capabilities in the safe management of commercially held radioactive source materials. Currently there are no federal or commercial options for the recovery, storage, or disposal of sealed neutron sources. This Environmental Assessment (EA) analyzes the potential environmental impacts that would be expected to occur if the DOE were to implement a program for the receipt and recovery at the Los Alamos National Laboratory (LANL), Los Alamos, New Mexico, of unwanted and excess plutonium-beryllium ({sup 238}Pu-Be) and americium-beryllium ({sup 241}Am-Be) sealed neutron sources. About 1 kg (2.2 lb) plutonium and 3 kg (6.6 lb) americium would be recovered over a 15-year project. Personnel at LANL would receive neutron sources from companies, universities, source brokers, and government agencies across the country. These neutron sources would be temporarily stored in floor holes at the CMR Hot Cell Facility. Recovery reduces the neutron emissions from the source material and refers to a process by which: (1) the stainless steel cladding is removed from the neutron source material, (2) the mixture of the radioactive material (Pu-238 or Am-241) and beryllium that constitutes the neutron source material is chemically separated (recovered), and (3) the recovered Pu-238 or Am-241 is converted to an oxide form ({sup 238}PuO{sub 2} or {sup 241}AmO{sub 2}). The proposed action would include placing the {sup 238}PuO{sub 2} or {sup 241}AmO{sub 2} in interim storage in a special nuclear material vault at the LANL Plutonium Facility.

  11. Semiconductor light source with electrically tunable emission wavelength

    DOE Patents [OSTI]

    Belenky, Gregory (Port Jefferson, NY); Bruno, John D. (Bowie, MD); Kisin, Mikhail V. (Centereach, NY); Luryi, Serge (Setauket, NY); Shterengas, Leon (Centereach, NY); Suchalkin, Sergey (Centereach, NY); Tober, Richard L. (Elkridge, MD)

    2011-01-25

    A semiconductor light source comprises a substrate, lower and upper claddings, a waveguide region with imbedded active area, and electrical contacts to provide voltage necessary for the wavelength tuning. The active region includes single or several heterojunction periods sandwiched between charge accumulation layers. Each of the active region periods comprises higher and lower affinity semiconductor layers with type-II band alignment. The charge carrier accumulation in the charge accumulation layers results in electric field build-up and leads to the formation of generally triangular electron and hole potential wells in the higher and lower affinity layers. Nonequillibrium carriers can be created in the active region by means of electrical injection or optical pumping. The ground state energy in the triangular wells and the radiation wavelength can be tuned by changing the voltage drop across the active region.

  12. Multiple delivery cesium oven system for negative ion sources

    SciTech Connect (OSTI)

    Bansal, G.; Bhartiya, S.; Pandya, K.; Bandyopadhyay, M.; Singh, M. J.; Soni, J.; Gahlaut, A.; Parmar, K. G.; Chakraborty, A. [Institute for Plasma Research, Bhat, Gandhinagar, Gujarat 382428 (India)

    2012-02-15

    Distribution of cesium in large negative ion beam sources to be operational in ITER, is presently based on the use of three or more cesium ovens, which operate simultaneously and are controlled remotely. However, use of multiple Cs ovens simultaneously is likely to pose difficulties in operation and maintenance of the ovens. An alternate method of Cs delivery, based on a single oven distribution system is proposed as one which could reduce the need of simultaneous operation of many ovens. A proof of principle experiment verifying the concept of a multinozzle distributor based Cs oven has been carried out at Institute for Plasma Research. It is also observed that the Cs flux is not controlled by Cs reservoir temperature after few hours of operation but by the temperature of the distributor which starts behaving as a Cs reservoir.

  13. Plasma shape control by pulsed solenoid on laser ion source

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

    Sekine, M.; Ikeda, S.; Romanelli, M.; Kumaki, M.; Fuwa, Y.; Kanesue, T.; Hayashizaki, N.; Lambiase, R.; Okamura, M.

    2015-05-28

    A Laser ion source (LIS) provides high current heavy ion beams with a very simple mechanical structure. Plasma is produced by a pulsed laser ablation of a solid state target and ions are extracted by an electric field. It was difficult to manipulate the beam parameters of a LIS, since the plasma condition could only be adjusted by the laser irradiation condition. To enhance flexibility of LIS operation, we employed a pulsed solenoid in the plasma drift section and investigated the effect of the solenoid field on singly charged iron beams. The experimentally obtained current profile was satisfactorily controlled bymore » the pulsed magnetic field. Thus, this approach may also be useful to reduce beam emittance of a LIS.« less

  14. Plasma shape control by pulsed solenoid on laser ion source

    SciTech Connect (OSTI)

    Sekine, M.; Ikeda, S.; Romanelli, M.; Kumaki, M.; Fuwa, Y.; Kanesue, T.; Hayashizaki, N.; Lambiase, R.; Okamura, M.

    2015-05-28

    A Laser ion source (LIS) provides high current heavy ion beams with a very simple mechanical structure. Plasma is produced by a pulsed laser ablation of a solid state target and ions are extracted by an electric field. It was difficult to manipulate the beam parameters of a LIS, since the plasma condition could only be adjusted by the laser irradiation condition. To enhance flexibility of LIS operation, we employed a pulsed solenoid in the plasma drift section and investigated the effect of the solenoid field on singly charged iron beams. The experimentally obtained current profile was satisfactorily controlled by the pulsed magnetic field. Thus, this approach may also be useful to reduce beam emittance of a LIS.

  15. Source localization of brain activity using helium-free interferometer

    SciTech Connect (OSTI)

    Dammers, Jürgen Chocholacs, Harald; Eich, Eberhard; Boers, Frank; Faley, Michael; Dunin-Borkowski, Rafal E.; Jon Shah, N.

    2014-05-26

    To detect extremely small magnetic fields generated by the human brain, currently all commercial magnetoencephalography (MEG) systems are equipped with low-temperature (low-T{sub c}) superconducting quantum interference device (SQUID) sensors that use liquid helium for cooling. The limited and increasingly expensive supply of helium, which has seen dramatic price increases recently, has become a real problem for such systems and the situation shows no signs of abating. MEG research in the long run is now endangered. In this study, we report a MEG source localization utilizing a single, highly sensitive SQUID cooled with liquid nitrogen only. Our findings confirm that localization of neuromagnetic activity is indeed possible using high-T{sub c} SQUIDs. We believe that our findings secure the future of this exquisitely sensitive technique and have major implications for brain research and the developments of cost-effective multi-channel, high-T{sub c} SQUID-based MEG systems.

  16. Suppression of fiber modal noise induced radial velocity errors for bright emission-line calibration sources

    SciTech Connect (OSTI)

    Mahadevan, Suvrath; Halverson, Samuel; Ramsey, Lawrence; Venditti, Nick

    2014-05-01

    Modal noise in optical fibers imposes limits on the signal-to-noise ratio (S/N) and velocity precision achievable with the next generation of astronomical spectrographs. This is an increasingly pressing problem for precision radial velocity spectrographs in the near-infrared (NIR) and optical that require both high stability of the observed line profiles and high S/N. Many of these spectrographs plan to use highly coherent emission-line calibration sources like laser frequency combs and Fabry-Perot etalons to achieve precision sufficient to detect terrestrial-mass planets. These high-precision calibration sources often use single-mode fibers or highly coherent sources. Coupling light from single-mode fibers to multi-mode fibers leads to only a very low number of modes being excited, thereby exacerbating the modal noise measured by the spectrograph. We present a commercial off-the-shelf solution that significantly mitigates modal noise at all optical and NIR wavelengths, and which can be applied to spectrograph calibration systems. Our solution uses an integrating sphere in conjunction with a diffuser that is moved rapidly using electrostrictive polymers, and is generally superior to most tested forms of mechanical fiber agitation. We demonstrate a high level of modal noise reduction with a narrow bandwidth 1550 nm laser. Our relatively inexpensive solution immediately enables spectrographs to take advantage of the innate precision of bright state-of-the art calibration sources by removing a major source of systematic noise.

  17. Power conditioning system for energy sources

    DOE Patents [OSTI]

    Mazumder, Sudip K. (Chicago, IL); Burra, Rajni K. (Chicago, IL); Acharya, Kaustuva (Chicago, IL)

    2008-05-13

    Apparatus for conditioning power generated by an energy source includes an inverter for converting a DC input voltage from the energy source to a square wave AC output voltage, and a converter for converting the AC output voltage from the inverter to a sine wave AC output voltage.

  18. Beam current controller for laser ion source

    DOE Patents [OSTI]

    Okamura, Masahiro

    2014-10-28

    The present invention relates to the design and use of an ion source with a rapid beam current controller for experimental and medicinal purposes. More particularly, the present invention relates to the design and use of a laser ion source with a magnetic field applied to confine a plasma flux caused by laser ablation.

  19. FERMI LARGE AREA TELESCOPE SECOND SOURCE CATALOG

    SciTech Connect (OSTI)

    Nolan, P. L.; Ajello, M.; Allafort, A.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Abdo, A. A.; Ackermann, M.; Antolini, E.; Bonamente, E.; Atwood, W. B.; Belfiore, A.; Axelsson, M.; Baldini, L.; Bellazzini, R.; Ballet, J.; Bastieri, D.; Bignami, G. F. E-mail: Gino.Tosti@pg.infn.it E-mail: tburnett@u.washington.edu; and others

    2012-04-01

    We present the second catalog of high-energy {gamma}-ray sources detected by the Large Area Telescope (LAT), the primary science instrument on the Fermi Gamma-ray Space Telescope (Fermi), derived from data taken during the first 24 months of the science phase of the mission, which began on 2008 August 4. Source detection is based on the average flux over the 24 month period. The second Fermi-LAT catalog (2FGL) includes source location regions, defined in terms of elliptical fits to the 95% confidence regions and spectral fits in terms of power-law, exponentially cutoff power-law, or log-normal forms. Also included are flux measurements in five energy bands and light curves on monthly intervals for each source. Twelve sources in the catalog are modeled as spatially extended. We provide a detailed comparison of the results from this catalog with those from the first Fermi-LAT catalog (1FGL). Although the diffuse Galactic and isotropic models used in the 2FGL analysis are improved compared to the 1FGL catalog, we attach caution flags to 162 of the sources to indicate possible confusion with residual imperfections in the diffuse model. The 2FGL catalog contains 1873 sources detected and characterized in the 100 MeV to 100 GeV range of which we consider 127 as being firmly identified and 1171 as being reliably associated with counterparts of known or likely {gamma}-ray-producing source classes.

  20. Inductively generated streaming plasma ion source

    DOE Patents [OSTI]

    Glidden, Steven C.; Sanders, Howard D.; Greenly, John B.

    2006-07-25

    A novel pulsed, neutralized ion beam source is provided. The source uses pulsed inductive breakdown of neutral gas, and magnetic acceleration and control of the resulting plasma, to form a beam. The beam supplies ions for applications requiring excellent control of ion species, low remittance, high current density, and spatial uniformity.