National Library of Energy BETA

Sample records for all-stars shine bright

  1. Energy All-Stars Shine Bright at Inaugural Lecture Series | Department of

    Office of Environmental Management (EM)

    Energy All-Stars Shine Bright at Inaugural Lecture Series Energy All-Stars Shine Bright at Inaugural Lecture Series January 22, 2013 - 3:38pm Addthis Energy Secretary Steven Chu talks about the challenges and opportunities relating to energy issues in the coming years as he opens the Energy All-Stars event. Jennifer Granholm, former governor of Michigan, proposes a Race to the Top-style program for clean energy during Energy All-Stars. Los Angeles Mayor Antonio Villaraigosa speaks about how

  2. Michael Liebreich (Energy All Stars Presentation)

    Broader source: Energy.gov [DOE]

    Michael Liebreich, CEO of Bloomberg New Energy Finance, delivered this presentation on the energy economy at the Energy All Stars event on January 19, 2013, at the US Department of Energy in...

  3. Bill Nye (Energy All Stars Presentation)

    Broader source: Energy.gov [DOE]

    Bill Nye the Science Guy delivered this presentation on space and the lessons about climate change that can be gleaned from the other planets in our solar system at the Energy All Stars event on...

  4. Mayor Antonio Villaraigosa (Energy All Stars Presentation)

    Broader source: Energy.gov [DOE]

    Los Angeles Mayor Antonio Villaraigosa delivered this presentation touting the energy efficiency and renewable energy related accomplishments of his city at the Energy All Stars event on January 19...

  5. Sue Tierney (Energy All Stars Presentation)

    Broader source: Energy.gov [DOE]

    Sue Tierney delivered this presentation" The Future of Energy: Toward the 21st Century Energy System We Need (With an Eye on the Rear View Mirror)" at the Energy All Stars event on January 19, 2013...

  6. Doyle Beneby (Energy All Stars Presentation)

    Broader source: Energy.gov [DOE]

    CPS Energy CEO Doyle Beneby delivered this presentation focusing on the importance of public-private partnerships to the energy economy at the Energy All Stars event on January 19, 2013, at the US...

  7. Jennifer Granholm (Energy All Stars Presentation)

    Office of Energy Efficiency and Renewable Energy (EERE)

    Former Michigan Governor Jennifer Granholm delivered this presentation advocating for an energy Race to the Top competition between the states at the Energy All Stars event on January 19, 2013, at...

  8. Sun Shine Solar | Open Energy Information

    Open Energy Info (EERE)

    Shine Solar Jump to: navigation, search Logo: Sun Shine Solar Name: Sun Shine Solar Place: Norwich, United Kingdom Sector: Solar Product: Solar energy products Phone Number: 01508...

  9. Media Call Recording- SHINES

    Broader source: Energy.gov [DOE]

    On Tuesday, January 19, 2016, the SunShot Initiative hosted a media call to discuss the newly-announced projects that are part of the Sustainable and Holistic Integration of Energy Storage and Solar PV program, also known as SHINES.

  10. City of Milwaukee- Milwaukee Shines Solar Financing

    Broader source: Energy.gov [DOE]

    The Milwaukee Shines program is also offering a $1,000 cash-back reward to the first 20 participants in the loan program.

  11. SHINES SunShot Project to Improve Energy Storage | Department...

    Energy Savers [EERE]

    SHINES SunShot Project to Improve Energy Storage SHINES SunShot Project to Improve Energy Storage Addthis Description Below is the text version for the SHINES SunShot Project to ...

  12. EERE SunShot's SHINES Program: Enabling a Rapidly Solarizing...

    Office of Environmental Management (EM)

    SunShot's SHINES Program: Enabling a Rapidly Solarizing Electricity Grid Through Energy Storage EERE SunShot's SHINES Program: Enabling a Rapidly Solarizing Electricity Grid ...

  13. SHINE Vacuum Pump Test Verification

    SciTech Connect (OSTI)

    Morgan, Gregg A; Peters, Brent

    2013-09-30

    Normetex pumps used world-wide for tritium service are no longer available. DOE and other researchers worldwide have spent significant funds characterizing this pump. Identification of alternate pumps is required for performance and compatibility with tritium gas. Many of the pumps that could be used to meet the functional performance requirements (e.g. pressure and flow conditions) of the Normetex pump have features that include the use of polymers or oils and greases that are not directly compatible with tritium service. This study assembles a test system to determine the flow characteristics for candidate alternate pumps. These tests are critical to the movement of tritium through the SHINE Tritium Purification System (TPS). The purpose of the pump testing is two-fold: (1) obtain baseline vacuum pump characteristics for an alternate (i.e. ''Normetex replacement'') pump intended for use in tritium service; and (2) verify that low pressure hydrogen gas can be transported over distances up to 300 feet by the candidate pumps. Flow rates and nominal system pressures have been identified for the SHINE Mo-99 production process Tritium Purification System (TPS). To minimize the line sizes for the transfer of low pressure tritium from the Neutron Driver Accelerator System (NDAS) to the primary processing systems in the TPS, a ''booster'' pump has been located near the accelerator in the design. A series of pump tests were performed at various configurations using hydrogen gas (no tritium) to ensure that this concept is practical and maintains adequate flow rates and required pressures. This report summarizes the results of the tests that have been performed using various pump configurations. The current design of the Tritium Purification System requires the ''booster'' pump to discharge to or to be backed by another vacuum pump. Since Normetex pumps are no longer manufactured, a commercially available Edwards scroll pump will be used to back the booster pump. In this case the ''booster pump'' is an Adixen Molecular Drag Pump (MDP 5011) and the backing pump is an Edwards (nXDS15iC) scroll pump. Various configurations of the two pumps and associated lengths of 3/4 inch tubing (0 feet to 300 feet) were used in combination with hydrogen and nitrogen flow rates ranging from 25-400 standard cubic centimeters per minute (sccm) to determine whether the proposed pump configuration meets the design criteria for SHINE. The results of this study indicate that even under the most severe conditions (300 feet of tubing and 400 sccm flow rate) the Adixen 5011 MDP can serve as a booster pump to transport gases from the accelerator (NDAS) to the TPS. The Target Gas Receiving System pump (Edwards nXDS15iC) located approximately 300 feet from the accelerator can effectively back the Adixen MDP. The molecular drag pump was able to maintain its full rotational speed even when the flow rate was 400 sccm hydrogen or nitrogen and 300 feet of tubing was installed between the drag pump and the Edwards scroll pump. In addition to maintaining adequate rotation, the pressure in the system was maintained below the target pressure of 30 torr for all flow rates, lengths of tubing, and process gases. This configuration is therefore adequate to meet the SHINE design requirements in terms of flow and pressure.

  14. STEM Women All-Stars Hit the Road | Department of Energy

    Energy Savers [EERE]

    STEM Women All-Stars Hit the Road STEM Women All-Stars Hit the Road April 30, 2012 - 4:32pm Addthis Karina Edmonds, Technology Transfer Coordinator for the Department of Energy, meets with girls from the University of San Francisco Upward Bound Math and Science Program. (Photo courtesy of USF Upward Bound Math and Science Program) Karina Edmonds, Technology Transfer Coordinator for the Department of Energy, meets with girls from the University of San Francisco Upward Bound Math and Science

  15. ALS X-Rays Shine a New Light on Catalysis

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

    ALS X-Rays Shine a New Light on Catalysis ALS X-Rays Shine a New Light on Catalysis Print Thursday, 21 May 2015 11:16 Electrocatalysts are responsible for expediting reactions in...

  16. Collaboration Shines in Materials Project Success

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

    Collaboration Shines in Materials Project Success Collaboration Shines in Materials Project Success Many Hands at Lab Lift 'World-Changing Idea' to New Heights December 12, 2013 Margie Wylie, mwylie@lbl.gov, +1 510.486.7421 cover2013-12.jpg Scientific American featured a Computing Sciences-powered project on its December cover as a top world-changing idea of 2013. The Materials Project, an open, web-hosted service, allows scientists using supercomputers and quantum mechanical equations to design

  17. PROJECT PROFILE: Austin Energy (SHINES) | Department of Energy

    Energy Savers [EERE]

    Austin Energy (SHINES) PROJECT PROFILE: Austin Energy (SHINES) Title: Austin SHINES Austin Energy Logo.png Funding Opportunity: Sustainable and Holistic Integration of Energy Storage and Solar PV SunShot Subprogram: Systems Integration Location: Austin, TX Partners: 1Energy Systems, Clean Power Research, ConnectDER, ERCOT, Ideal Power Converters, Landis & Gyr, Pecan Street, Inc., Samsung SDI, Solar Edge, Tesla Amount Awarded: $4,300,000 Awardee Cost Share: $4,337,683 The goal of the Austin

  18. PROJECT PROFILE: Hawaiian Electric Company (SHINES) | Department of Energy

    Energy Savers [EERE]

    Hawaiian Electric Company (SHINES) PROJECT PROFILE: Hawaiian Electric Company (SHINES) Title: Integrating System to Edge-of-Network Architecture and Management for SHINES (SEAMS) Technologies on High Penetration Grids Funding Opportunity: Sustainable and Holistic Integration of Energy Storage and Solar PV SunShot Subprogram: Systems Integration Location: Honolulu, Hawaii Partners: Siemens, Alstom, DNV GL , AWS Truepower, Referentia Systems, Apparent, and Stem Amount Awarded: $2,437,500 Awardee

  19. SHINES images and graphics gallery | Department of Energy

    Energy Savers [EERE]

    SHINES images and graphics gallery SHINES images and graphics gallery Addthis 1 of 4 Austin Energy - This is a photo of the Mueller development, where Austin Energy is planning to install the SHINES energy storage project. The Mueller neighborhood has the largest concentration of solar panels and electric vehicles of any neighborhood in the world. Image: Austin Energy 2 of 4 Fraunhofer - National Grid PV Field in Shirley, MA. Image: E-Cast Productions 3 of 4 EPRI - The EPRI-led collaborative

  20. ALS X-Rays Shine a New Light on Catalysis

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

    ALS X-Rays Shine a New Light on Catalysis Print Electrocatalysts are responsible for expediting reactions in many promising renewable energy technologies. However, the extreme...

  1. A Shining Example of Dr. King's legacy | Department of Energy

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

    A Shining Example of Dr. King's legacy A Shining Example of Dr. King's legacy January 9, 2013 - 11:27am Addthis A Shining Example of Dr. King’s legacy Kathy Chambers Senior Science and Technical Information Specialist, OSTI Editor's Note: This blog was originally posted on OSTI's blog. As America celebrates Martin Luther King's birthday and focuses on how far this nation has come for all people, the Energy Department's .EDUconnections is pleased to honor Delaware State University (DSU). DSU

  2. Shining Light on Catalysis | Stanford Synchrotron Radiation Lightsourc...

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

    Shining Light on Catalysis Tuesday, July 19, 2011 - 4:38pm SSRL Conference Room 137-322 Jeroen A. van Bokhoven, Professor for Heterogeneous Catalysis Institute for Chemical and...

  3. Smart Grid Shines after California Earthquake | OpenEI Community

    Open Energy Info (EERE)

    Smart Grid Shines after California Earthquake Home > Groups > Smart Grid Dc's picture Submitted by Dc(266) Contributor 16 September, 2014 - 13:38 Back in 1989, nearly 55,000...

  4. Shining Light on Opacity (Journal Article) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Shining Light on Opacity Citation Details In-Document Search Title: ... DOE Contract Number: DE-AC52-07NA27344 Resource Type: Journal Article Resource Relation: ...

  5. ALS X-Rays Shine a New Light on Catalysis

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

    ALS X-Rays Shine a New Light on Catalysis ALS X-Rays Shine a New Light on Catalysis Print Thursday, 21 May 2015 11:16 Electrocatalysts are responsible for expediting reactions in many promising renewable energy technologies. However, the extreme sensitivity of their surface redox states to temperatures, to gas pressures, and to electrochemical reaction conditions renders them difficult to investigate by conventional surface-science techniques. Recently a team of Stanford and Berkeley Lab

  6. PROJECT PROFILE: Carnegie Mellon University (SHINES) | Department of Energy

    Energy Savers [EERE]

    Carnegie Mellon University (SHINES) PROJECT PROFILE: Carnegie Mellon University (SHINES) Title: Agent-Based Coordination Scheme For PV Integration (ABC4PV) Carnegie Mellon logo.jpg Funding Opportunity: Sustainable and Holistic Integration of Energy Storage and Solar PV SunShot Subprogram: Systems Integration Location: Pittsburgh, Pennsylvania Partners: NRECA, Aquion Energy Amount Awarded: $1,036,963 Awardee Cost Share: $1,038,083 This project will develop and demonstrate a distributed,

  7. PROJECT PROFILE: Commonwealth Edison Company (SHINES) | Department of

    Energy Savers [EERE]

    Energy Commonwealth Edison Company (SHINES) PROJECT PROFILE: Commonwealth Edison Company (SHINES) Title: Microgrid-Integrated Solar-Storage Technology (MISST) ComEd logo.png Funding Opportunity: Sustainable and Holistic Integration of Energy Storage and Solar PV SunShot Subprogram: Systems Integration Location: Oakbrook Terrace, Illinois Partners: Illinois Institute of Technology, University of Denver, Veriown, Azimuth Energy, Schneider Electric, S&C Electric, OSIsoft, Argonne National

  8. PROJECT PROFILE: Electric Power Research Institute (SHINES) | Department of

    Energy Savers [EERE]

    Energy Electric Power Research Institute (SHINES) PROJECT PROFILE: Electric Power Research Institute (SHINES) Title: Beneficial Integration of Energy Storage and Load Management with Photovoltaics epri-logo.jpg Funding Opportunity: Sustainable and Holistic Integration of Energy Storage and Solar PV SunShot Subprogram: Systems Integration Location: Knoxville, Tennessee Partners: FirstEnergy, NYPA, Con Edison, Southern Company, Gulf Power, Case Western Reserve University, Queens College of the

  9. Crayola's True Color Shines Through: Green | Department of Energy

    Office of Environmental Management (EM)

    Crayola's True Color Shines Through: Green Crayola's True Color Shines Through: Green August 13, 2010 - 10:00am Addthis The Crayola solar farm became fully operational this week. Ten children from around the country, known as the "Crayola Green Team," helped dedicate the newest addition to the Easton, Pa.-plant. Photos courtesy of Crayola. | Photo Courtesy of Crayola The Crayola solar farm became fully operational this week. Ten children from around the country, known as the

  10. EM Waste Isolation Pilot Plant Team's Holiday Spirit Shines | Department

    Office of Environmental Management (EM)

    of Energy Waste Isolation Pilot Plant Team's Holiday Spirit Shines EM Waste Isolation Pilot Plant Team's Holiday Spirit Shines December 23, 2013 - 12:00pm Addthis Aspen Cass, a relative of an EM Carlsbad Field Office (CBFO) employee, holds donated coats with Farok Sharif (left), president and project manager of Nuclear Waste Partnership, the WIPP management and operating contractor, and Joe Franco, manager of CBFO. Aspen Cass, a relative of an EM Carlsbad Field Office (CBFO) employee, holds

  11. NPR: Particles From The Edge Of Space Shine A Light On Fukushima

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

    NPR: Particles From The Edge Of Space Shine A Light On Fukushima NPR: Particles From The Edge Of Space Shine A Light On Fukushima It's one of the greatest, and most disturbing, ...

  12. NPR: Particles From The Edge Of Space Shine A Light On Fukushima

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

    NPR: Particles From The Edge Of Space Shine A Light On Fukushima August 30, 2015 NPR: Particles From The Edge Of Space Shine A Light On Fukushima It's one of the greatest, and most ...

  13. Solar Decathlon: Rain and Shine | Department of Energy

    Energy Savers [EERE]

    Decathlon: Rain and Shine Solar Decathlon: Rain and Shine October 20, 2009 - 7:00am Addthis Drew Bittner Writer/Editor, Office of Energy Efficiency and Renewable Energy Friday marked the end of the Solar Decathlon competition. Team Germany won (for the second time) in a very competitive field, in a ceremony marked by gray skies, cold temperatures and rain. For all the bad weather, however, the mood in DC was very upbeat. This was the fourth Solar Decathlon, an event that has seen great strides

  14. Rain or Shine: We Cycle for Science | Department of Energy

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

    Rain or Shine: We Cycle for Science Rain or Shine: We Cycle for Science July 2, 2015 - 10:39am Addthis Elizabeth and Rachel visit a YWCA in Waterloo, Iowa. | Photo courtesy of Cycle for Science. Elizabeth and Rachel visit a YWCA in Waterloo, Iowa. | Photo courtesy of Cycle for Science. Rachel Woods-Robinson Guest Blogger, Cycle for Science Elizabeth Case Guest Blogger, Cycle for Science Cycle for Science Read more about Elizabeth and Rachel's journey in their check-in blog posts from April and

  15. LANL Instrument to Shine Light on Mars Habitability | National Nuclear

    National Nuclear Security Administration (NNSA)

    Security Administration Instrument to Shine Light on Mars Habitability | 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 Bios Congressional Testimony Fact Sheets Newsletters Press Releases Photo

  16. Shining Light on Catalysis | Stanford Synchrotron Radiation Lightsource

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

    Shining Light on Catalysis Tuesday, July 19, 2011 - 4:38pm SSRL Conference Room 137-322 Jeroen A. van Bokhoven, Professor for Heterogeneous Catalysis Institute for Chemical and Bioengineering ETH Zurich Head of Laboratory for Catalysis and Sustainable Chemistry (LSK) Swiss Light Source Paul Scherrer Institute Understanding a functioning catalyst requires understanding at the atomic scales in a time-resolved manner. X-rays can be readily used to accomplish that task, because of the large

  17. ALS X-Rays Shine a New Light on Catalysis

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

    ALS X-Rays Shine a New Light on Catalysis Print Electrocatalysts are responsible for expediting reactions in many promising renewable energy technologies. However, the extreme sensitivity of their surface redox states to temperatures, to gas pressures, and to electrochemical reaction conditions renders them difficult to investigate by conventional surface-science techniques. Recently a team of Stanford and Berkeley Lab researchers used x-rays at the ALS in a novel way to observe the behavior of

  18. ALS X-Rays Shine a New Light on Catalysis

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

    ALS X-Rays Shine a New Light on Catalysis Print Electrocatalysts are responsible for expediting reactions in many promising renewable energy technologies. However, the extreme sensitivity of their surface redox states to temperatures, to gas pressures, and to electrochemical reaction conditions renders them difficult to investigate by conventional surface-science techniques. Recently a team of Stanford and Berkeley Lab researchers used x-rays at the ALS in a novel way to observe the behavior of

  19. ALS X-Rays Shine a New Light on Catalysis

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

    ALS X-Rays Shine a New Light on Catalysis Print Electrocatalysts are responsible for expediting reactions in many promising renewable energy technologies. However, the extreme sensitivity of their surface redox states to temperatures, to gas pressures, and to electrochemical reaction conditions renders them difficult to investigate by conventional surface-science techniques. Recently a team of Stanford and Berkeley Lab researchers used x-rays at the ALS in a novel way to observe the behavior of

  20. ALS X-Rays Shine a New Light on Catalysis

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

    ALS X-Rays Shine a New Light on Catalysis Print Electrocatalysts are responsible for expediting reactions in many promising renewable energy technologies. However, the extreme sensitivity of their surface redox states to temperatures, to gas pressures, and to electrochemical reaction conditions renders them difficult to investigate by conventional surface-science techniques. Recently a team of Stanford and Berkeley Lab researchers used x-rays at the ALS in a novel way to observe the behavior of

  1. ALS X-Rays Shine a New Light on Catalysis

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

    ALS X-Rays Shine a New Light on Catalysis Print Electrocatalysts are responsible for expediting reactions in many promising renewable energy technologies. However, the extreme sensitivity of their surface redox states to temperatures, to gas pressures, and to electrochemical reaction conditions renders them difficult to investigate by conventional surface-science techniques. Recently a team of Stanford and Berkeley Lab researchers used x-rays at the ALS in a novel way to observe the behavior of

  2. ALS X-Rays Shine a New Light on Catalysis

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

    ALS X-Rays Shine a New Light on Catalysis Print Electrocatalysts are responsible for expediting reactions in many promising renewable energy technologies. However, the extreme sensitivity of their surface redox states to temperatures, to gas pressures, and to electrochemical reaction conditions renders them difficult to investigate by conventional surface-science techniques. Recently a team of Stanford and Berkeley Lab researchers used x-rays at the ALS in a novel way to observe the behavior of

  3. EERE SunShot's SHINES Program: Enabling a Rapidly Solarizing Electricity

    Energy Savers [EERE]

    Grid Through Energy Storage | Department of Energy SunShot's SHINES Program: Enabling a Rapidly Solarizing Electricity Grid Through Energy Storage EERE SunShot's SHINES Program: Enabling a Rapidly Solarizing Electricity Grid Through Energy Storage January 19, 2016 - 11:01am Addthis 1 of 4 Austin Energy - This is a photo of the Mueller development, where Austin Energy is planning to install the SHINES energy storage project. The Mueller neighborhood has the largest concentration of solar

  4. Sustainable and Holistic Integration of Energy Storage and Solar PV (SHINES) Funding Opportunity

    Broader source: Energy.gov [DOE]

    The Sustainable and Holistic Integration of Energy Storage and Solar PV (SHINES) solution as envisioned by SunShot will have the following features:

  5. SUSTAINABLE AND HOLISTIC INTEGRATION OF ENERGY STORAGE AND SOLAR PV (SHINES)

    Broader source: Energy.gov [DOE]

    The Sustainable and Holistic Integration of Energy Storage and Solar PV (SHINES) program develops and demonstrates integrated photovoltaic (PV) and energy storage solutions that are scalable,...

  6. SHINE Tritium Nozzle Design: Activity 6, Task 1 Report

    SciTech Connect (OSTI)

    Okhuysen, Brett S.; Pulliam, Elias Noel

    2015-11-05

    In FY14, we studied the qualitative and quantitative behavior of a SHINE/PNL tritium nozzle under varying operating conditions. The result is an understanding of the nozzles performance in terms of important flow features that manifest themselves under different parametric profiles. In FY15, we will consider nozzle design with a focus on nozzle geometry and integration. From FY14 work, we will understand how the SHINE/PNL nozzle behaves under different operating scenarios. The first task for FY15 is to evaluate the FY14 model as a predictor of the actual flow. Considering different geometries is more time-intensive than parameter studies, therefore we recommend considering any relevant flow features that were not included in the FY14 model. In the absence of experimental data, it is particularly important to consider any sources of heat in the domain or boundary conditions that may affect the flow and incorporate these into the simulation if they are significant. Additionally, any geometric features of the beamline segment should be added to the model such as the orifice plate. The FY14 model works with hydrogen. An improvement that can be made for FY15 is to develop CFD properties for tritium and incorporate those properties into the new models.

  7. NPR: Particles From The Edge Of Space Shine A Light On Fukushima

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

    NPR: Particles From The Edge Of Space Shine A Light On Fukushima NPR: Particles From The Edge Of Space Shine A Light On Fukushima It's one of the greatest, and most disturbing, questions of the Fukushima disaster: What happened to the nuclear fuel inside the plant? Now physicists are trying to shed some light on the problem using particles from the edge of space. August 30, 2015 NPR: Particles From The Edge Of Space Shine A Light On Fukushima It's one of the greatest, and most disturbing,

  8. Plant-Scale Concentration Column Designs for SHINE Target Solution Utilizing AG 1 Anion Exchange Resin

    SciTech Connect (OSTI)

    Stepinski, Dominique C.; Vandegrift, G. F.

    2015-09-30

    Argonne is assisting SHINE Medical Technologies (SHINE) in their efforts to develop SHINE, an accelerator-driven process that will utilize a uranyl-sulfate solution for the production of fission product Mo-99. An integral part of the process is the development of a column for the separation and recovery of Mo-99, followed by a concentration column to reduce the product volume from 15-25 L to <1 L. Argonne has collected data from batch studies and breakthrough column experiments to utilize the VERSE (Versatile Reaction Separation) simulation program (Purdue University) to design plant-scale product recovery and concentration processes.

  9. Rise and Shine: Lighting the World with 10 Billion LED Bulbs | Department

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

    of Energy Rise and Shine: Lighting the World with 10 Billion LED Bulbs Rise and Shine: Lighting the World with 10 Billion LED Bulbs December 7, 2015 - 9:23am Addthis Rise and Shine: Lighting the World with 10 Billion LED Bulbs Gabrielle Dreyfus, Ph.D. Gabrielle Dreyfus, Ph.D. Senior Policy Analyst, Office of International Climate and Clean Energy. Chad Gallinat, Ph.D. Chad Gallinat, Ph.D. International Climate Fellow, Office of International Climate and Clean Energy Stand next to a

  10. Argonne Researchers Shine "Light" on Origins of Wind Turbine Bearing

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

    Failures | Department of Energy Researchers Shine "Light" on Origins of Wind Turbine Bearing Failures Argonne Researchers Shine "Light" on Origins of Wind Turbine Bearing Failures September 12, 2014 - 11:34am Addthis An aerial photo of a circular building with a courtyard in the center and green fields surrounding it. Researchers at the U.S Department of Energy's (DOE's) Argonne National Laboratory (ANL) are investigating the root cause of failures to wind turbine

  11. LEP shines light on dark matter (Journal Article) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    LEP shines light on dark matter Citation Details In-Document Search Title: LEP shines light on dark matter Authors: Fox, Patrick J. ; Harnik, Roni ; Kopp, Joachim ; Tsai, Yuhsin Publication Date: 2011-07-22 OSTI Identifier: 1100365 Type: Publisher's Accepted Manuscript Journal Name: Physical Review D Additional Journal Information: Journal Volume: 84; Journal Issue: 1; Journal ID: ISSN 1550-7998 Publisher: American Physical Society Sponsoring Org: USDOE Country of Publication: United States

  12. EECBG Success Story: Light Shines on Better Budget for Glendale, Arizona |

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

    Department of Energy Light Shines on Better Budget for Glendale, Arizona EECBG Success Story: Light Shines on Better Budget for Glendale, Arizona July 20, 2010 - 10:00am Addthis A LED light bulb is installed in one of Glendale, Arizona's traffic signals. | Photo courtesy of Glendale A LED light bulb is installed in one of Glendale, Arizona's traffic signals. | Photo courtesy of Glendale Glendale, Arizona installed energy-efficient LED lights in 190 signalized street intersections using part

  13. Shining LUX on isospin-violating dark matter beyond leading order (Journal

    Office of Scientific and Technical Information (OSTI)

    Article) | SciTech Connect Shining LUX on isospin-violating dark matter beyond leading order Citation Details In-Document Search Title: Shining LUX on isospin-violating dark matter beyond leading order Authors: Cirigliano, Vincenzo ; Graesser, Michael L. ; Ovanesyan, Grigory ; Shoemaker, Ian M. Publication Date: 2014-12-01 OSTI Identifier: 1197961 Grant/Contract Number: AC52-06NA25396 Type: Published Article Journal Name: Physics Letters. Section B Additional Journal Information: Journal

  14. High brightness electron accelerator

    DOE Patents [OSTI]

    Sheffield, Richard L. (Los Alamos, NM); Carlsten, Bruce E. (Los Alamos, NM); Young, Lloyd M. (Los Alamos, NM)

    1994-01-01

    A compact high brightness linear accelerator is provided for use, e.g., in a free electron laser. The accelerator has a first plurality of acclerating cavities having end walls with four coupling slots for accelerating electrons to high velocities in the absence of quadrupole fields. A second plurality of cavities receives the high velocity electrons for further acceleration, where each of the second cavities has end walls with two coupling slots for acceleration in the absence of dipole fields. The accelerator also includes a first cavity with an extended length to provide for phase matching the electron beam along the accelerating cavities. A solenoid is provided about the photocathode that emits the electons, where the solenoid is configured to provide a substantially uniform magnetic field over the photocathode surface to minimize emittance of the electons as the electrons enter the first cavity.

  15. Shining Stars of Solar: Meet Three SunShot Postdoctoral Award Recipients

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

    Who Are Making a Difference | Department of Energy Shining Stars of Solar: Meet Three SunShot Postdoctoral Award Recipients Who Are Making a Difference Shining Stars of Solar: Meet Three SunShot Postdoctoral Award Recipients Who Are Making a Difference March 14, 2014 - 6:38pm Addthis Photovoltaic arrays at the SunEdison facility at SolarTAC in Aurora, Colorado. Photovoltaics are just one of many clean energy technologies participants of the Office of Energy Efficiency and Renewable Energy's

  16. Light Shines on Better Budget for Glendale, Arizona | Department of Energy

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

    Shines on Better Budget for Glendale, Arizona Light Shines on Better Budget for Glendale, Arizona July 20, 2010 - 10:00am Addthis A LED light bulb is installed in one of Glendale, Ariz.'s traffic signals. | Photo courtesy of Glendale A LED light bulb is installed in one of Glendale, Ariz.'s traffic signals. | Photo courtesy of Glendale Glendale, Ariz., like many other cities, was facing several problems: a tight budget and aging buildings using outdated lighting - making repairs difficult and

  17. NPR: Particles From The Edge Of Space Shine A Light On Fukushima

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

    NPR: Particles From The Edge Of Space Shine A Light On Fukushima August 30, 2015 NPR: Particles From The Edge Of Space Shine A Light On Fukushima It's one of the greatest, and most disturbing, questions of the Fukushima disaster: What happened to the nuclear fuel inside the plant? Now physicists are trying to shed some light on the problem using particles from the edge of space. The Fukushima accident was broadcast around the world. On March 11, 2011, an earthquake and tsunami struck the plant,

  18. Photo of the Week: Rain or Shine, Preparing for the 2013 Hurricane Season |

    Energy Savers [EERE]

    Department of Energy Rain or Shine, Preparing for the 2013 Hurricane Season Photo of the Week: Rain or Shine, Preparing for the 2013 Hurricane Season May 15, 2013 - 1:16pm Addthis President Barack Obama listens to Acting Energy Secretary Daniel B. Poneman during a meeting with electric utility CEOs and trade association representatives at the Department of Energy in Washington, D.C., May 8, 2013. The group met to discuss lessons learned during the response to Hurricane Sandy, as well as the

  19. Fuel Cells Shine a Light on the Last Endeavour Space Shuttle Launch |

    Office of Environmental Management (EM)

    Department of Energy Cells Shine a Light on the Last Endeavour Space Shuttle Launch Fuel Cells Shine a Light on the Last Endeavour Space Shuttle Launch May 16, 2011 - 9:35am Addthis Sunita Satyapal Director, Fuel Cell Technologies Office What does this mean for me? A new hydrogen fuel cell-powered mobile light tower that has the potential to drastically reduce dependence on diesel-fueled mobile lighting across the United States. They are cleaner and quieter than diesel mobile light towers

  20. Desert Sunlight is Shining Example of How DOE Loan Guarantees Helped Launch

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

    Utility-scale PV Solar Market | Department of Energy Desert Sunlight is Shining Example of How DOE Loan Guarantees Helped Launch Utility-scale PV Solar Market Desert Sunlight is Shining Example of How DOE Loan Guarantees Helped Launch Utility-scale PV Solar Market February 9, 2015 - 12:01am Addthis In 2011, LPO issued loan guarantees to the first 5 PV projects larger than 100 MW in the U.S. An additional 17 projects have been financed since without loan guarantees. In 2011, LPO issued loan

  1. Bright Automotive Inc | Open Energy Information

    Open Energy Info (EERE)

    Automotive Inc Jump to: navigation, search Name: Bright Automotive, Inc. Place: Anderson, Indiana Zip: 46013 Product: Designer and OEM for the IDEA PHEV. References: Bright...

  2. Black hole variability and the star formation-active galactic nucleus connection: Do all star-forming galaxies host an active galactic nucleus?

    SciTech Connect (OSTI)

    Hickox, Ryan C.; Chen, Chien-Ting J.; Civano, Francesca M.; Hainline, Kevin N.; Mullaney, James R.; Alexander, David M.; Goulding, Andy D.

    2014-02-10

    We investigate the effect of active galactic nucleus (AGN) variability on the observed connection between star formation and black hole accretion in extragalactic surveys. Recent studies have reported relatively weak correlations between observed AGN luminosities and the properties of AGN hosts, which has been interpreted to imply that there is no direct connection between AGN activity and star formation. However, AGNs may be expected to vary significantly on a wide range of timescales (from hours to Myr) that are far shorter than the typical timescale for star formation (?100 Myr). This variability can have important consequences for observed correlations. We present a simple model in which all star-forming galaxies host an AGN when averaged over ?100 Myr timescales, with long-term average AGN accretion rates that are perfectly correlated with the star formation rate (SFR). We show that reasonable prescriptions for AGN variability reproduce the observed weak correlations between SFR and L {sub AGN} in typical AGN host galaxies, as well as the general trends in the observed AGN luminosity functions, merger fractions, and measurements of the average AGN luminosity as a function of SFR. These results imply that there may be a tight connection between AGN activity and SFR over galaxy evolution timescales, and that the apparent similarities in rest-frame colors, merger rates, and clustering of AGNs compared to 'inactive' galaxies may be due primarily to AGN variability. The results provide motivation for future deep, wide extragalactic surveys that can measure the distribution of AGN accretion rates as a function of SFR.

  3. Corrosion Assessment of Candidate Materials for the SHINE Subcritical Assembly Vessel and Components FY15 Report

    SciTech Connect (OSTI)

    Pawel, Steven J.

    2016-01-01

    In the previous report of this series, a literature review was performed to assess the potential for substantial corrosion issues associated with the proposed SHINE process conditions to produce 99Mo. Following the initial review, substantial laboratory corrosion testing was performed emphasizing immersion and vapor-phase exposure of candidate alloys in a wide variety of solution chemistries and temperatures representative of potential exposure conditions.

  4. LED Record Efficacy and Brightness

    Broader source: Energy.gov [DOE]

    Designed for general lighting applications such as street, industrial, and parking garage lighting, the Cree XLamp® power LED sets new records for LED brightness and efficacy, up to 85 lm/W at 350 mA. The XLamp utilizes Cree's performance breakthrough EZBright™ LED chip; both products include technology that was developed in part with R&D funding support from DOE.

  5. Rain or Shine, Students Keep Their Race Cars Going - News Feature | NREL

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

    Rain or Shine, Students Keep Their Race Cars Going May 29, 2015 Photo of a group of students at the starting line for a race between battery-powered cars. Students watch their battery-powered cars take off from the starting line at the annual Junior Solar Sprint and Lithium Ion Battery car competitions sponsored by NREL. Photo by Dennis Schroeder, NREL Teegan and Kira Cordova love the original Star Trek TV series. That much is obvious. The eighth-grade twins from Ken Caryl Middle School in

  6. Plastic Solar Cells See Bright Future | ANSER Center | Argonne...

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

    Plastic Solar Cells See Bright Future Home > News & Events > Plastic Solar Cells See Bright Future Plastic Solar Cells See Bright Future Evanston, Ill---Energy consumption is ...

  7. Corrosion Assessment of Candidate Materials for the SHINE Subcritical Assembly Vessel and Components FY14 Report

    SciTech Connect (OSTI)

    Pawel, Steven J.

    2014-10-01

    Laboratory corrosion testing of candidate alloysincluding Zr-4 and Zr-2.5Nb representing the target solution vessel, and 316L, 2304, 304L, and 17-4 PH stainless steels representing process piping and balance-of-plant componentswas performed in support of the proposed SHINE process to produce 99Mo from low-enriched uranium. The test solutions used depleted uranyl sulfate in various concentrations and incorporated a range of temperatures, excess sulfuric acid concentrations, nitric acid additions (to simulate radiolysis product generation), and iodine additions. Testing involved static immersion of coupons in solution and in the vapor above the solution, and was extended to include planned-interval tests to examine details associated with stainless steel corrosion in environments containing iodine species. A large number of galvanic tests featuring couples between a stainless steel and a zirconium-based alloy were performed, and limited vibratory horn testing was incorporated to explore potential erosion/corrosion features of compatibility. In all cases, corrosion of the zirconium alloys was observed to be minimal, with corrosion rates based on weight loss calculated to be less than 0.1 mil/year with no change in surface roughness. The resulting passive film appeared to be ZrO2 with variations in thickness that influence apparent coloration (toward light brown for thicker films). Galvanic coupling with various stainless steels in selected exposures had no discernable effect on appearance, surface roughness, or corrosion rate. Erosion/corrosion behavior was the same for zirconium alloys in uranyl sulfate solutions and in sodium sulfate solutions adjusted to a similar pH, suggesting there was no negative effect of uranium resulting from fluid dynamic conditions aggressive to the passive film. Corrosion of the candidate stainless steels was similarly modest across the entire range of exposures. However, some sensitivity to corrosion of the stainless steels was observed in solutions with 50 wppm iodine (the actual SHINE process expects 0.11 wppm) with the highest corrosion rates (up to ~6 mil/year) observed on specimens exposed in the vapor phase. Lower concentrations of iodine species (5 or 28 wppm) proved much less corrosive, and the planned-interval data indicated that metal corrodibility decreased with time for all immersed exposures and, with one minor exception, all vapor exposures. Little change in susceptibility to corrosion was observed as a result of nitric acid additions to the test environment (simulating radiolysis products). The trend toward reduced corrosion (immersion and vapor phase) with decreasing iodine concentration suggests that, at the expected conditions in the SHINE process, it is unlikely that iodine species will generate a general corrosion concern for the candidate stainless steels.

  8. Bright Power Inc | Open Energy Information

    Open Energy Info (EERE)

    search Name: Bright Power Inc Place: New York, New York Zip: 10005 Sector: Buildings, Efficiency, Renewable Energy Product: New York-based renewable energy, energy...

  9. All-Star Nanocrystals | The Ames Laboratory

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

    perovskites may be of future use in the construction of new porous and nanostructured solar cell architectures, as well as light-emitting devices and for single particle...

  10. ARM - Measurement - Longwave narrowband brightness temperature

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

    narrowband brightness temperature ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Longwave narrowband brightness temperature A descriptive measure of radiation in terms of the temperature of a hypothetical black body emitting an identical amount of radiation in the same narrow band of wavelengths. Categories Radiometric Instruments The above measurement is considered scientifically relevant for the

  11. ARM - Measurement - Longwave spectral brightness temperature

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

    spectral brightness temperature ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Longwave spectral brightness temperature A descriptive measure of radiation in terms of the temperature of a hypothetical black body emitting an identical amount of radiation at the same spectrally resolved wavelengths. Categories Radiometric Instruments The above measurement is considered scientifically relevant for the

  12. ARM - Measurement - Microwave narrowband brightness temperature

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

    govMeasurementsMicrowave narrowband brightness temperature ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Microwave narrowband brightness temperature A descriptive measure of radiation in terms of the temperature of a hypothetical black body emitting an identical amount of radiation in the same narrow bands of wavelengths. Categories Radiometric Instruments The above measurement is considered

  13. Updated Spitzer emission spectroscopy of bright transiting hot...

    Office of Scientific and Technical Information (OSTI)

    Updated Spitzer emission spectroscopy of bright transiting hot Jupiter HD 189733b Citation Details In-Document Search Title: Updated Spitzer emission spectroscopy of bright...

  14. High Average Brightness Photocathode Development for FEL Applications...

    Office of Scientific and Technical Information (OSTI)

    Conference: High Average Brightness Photocathode Development for FEL Applications Citation Details In-Document Search Title: High Average Brightness Photocathode Development for...

  15. FY-15 Progress Report on Cleanup of irradiated SHINE Target Solutions Containing 140g-U/L Uranyl Sulfate

    SciTech Connect (OSTI)

    Bennett, Megan E.; Bowers, Delbert L.; Vandegrift, George F.

    2015-09-01

    During FY 2012 and 2013, a process was developed to convert the SHINE Target Solution (STS) of irradiated uranyl sulfate (140 g U/L) to uranyl nitrate [1, 2]. This process is necessary so that the uranium solution can be processed by the UREX (Uranium Extraction) separation process, which will remove impurities from the uranium so that it can be recycled. The uranyl sulfate solution must contain <0.02 M SO42- so that the uranium will be extractable into the UREXsolvent [2]. In addition, it is desired that the barium content be below 0.0007 M, as this is the limit in the Resource Conservation and Recovery Act (RCRA).

  16. A brightness exceeding simulated Langmuir limit

    SciTech Connect (OSTI)

    Nakasuji, Mamoru

    2013-08-15

    When an excitation of the first lens determines a beam is parallel beam, a brightness that is 100 times higher than Langmuir limit is measured experimentally, where Langmuir limits are estimated using a simulated axial cathode current density which is simulated based on a measured emission current. The measured brightness is comparable to Langmuir limit, when the lens excitation is such that an image position is slightly shorter than a lens position. Previously measured values of brightness for cathode apical radii of curvature 20, 60, 120, 240, and 480 ?m were 8.7, 5.3, 3.3, 2.4, and 3.9 times higher than their corresponding Langmuir limits, respectively, in this experiment, the lens excitation was such that the lens and the image positions were 180 mm and 400 mm, respectively. From these measured brightness for three different lens excitation conditions, it is concluded that the brightness depends on the first lens excitation. For the electron gun operated in a space charge limited condition, some of the electrons emitted from the cathode are returned to the cathode without having crossed a virtual cathode. Therefore, method that assumes a Langmuir limit defining method using a Maxwellian distribution of electron velocities may need to be revised. For the condition in which the values of the exceeding the Langmuir limit are measured, the simulated trajectories of electrons that are emitted from the cathode do not cross the optical axis at the crossover, thus the law of sines may not be valid for high brightness electron beam systems.

  17. Department Announces Loan Guarantee for BrightSource Energy Inc. |

    Office of Environmental Management (EM)

    Department of Energy Announces Loan Guarantee for BrightSource Energy Inc. Department Announces Loan Guarantee for BrightSource Energy Inc. April 11, 2011 - 5:58pm Addthis The Department of Energy’s $1.6 billion loan guarentee will support Bright Source’s Ivanpah Solar Energy Generating System. | courtesy of Bright Source The Department of Energy's $1.6 billion loan guarentee will support Bright Source's Ivanpah Solar Energy Generating System. | courtesy of Bright Source Ginny

  18. Nonlinear Brightness Optimization in Compton Scattering

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

    Hartemann, Fred V.; Wu, Sheldon S. Q.

    2013-07-26

    In Compton scattering light sources, a laser pulse is scattered by a relativistic electron beam to generate tunable x and gamma rays. Because of the inhomogeneous nature of the incident radiation, the relativistic Lorentz boost of the electrons is modulated by the ponderomotive force during the interaction, leading to intrinsic spectral broadening and brightness limitations. We discuss these effects, along with an optimization strategy to properly balance the laser bandwidth, diffraction, and nonlinear ponderomotive force.

  19. Raman beam combining for laser brightness enhancement

    DOE Patents [OSTI]

    Dawson, Jay W.; Allen, Graham S.; Pax, Paul H.; Heebner, John E.; Sridharan, Arun K.; Rubenchik, Alexander M.; Barty, Chrisopher B. J.

    2015-10-27

    An optical source capable of enhanced scaling of pulse energy and brightness utilizes an ensemble of single-aperture fiber lasers as pump sources, with each such fiber laser operating at acceptable pulse energy levels. Beam combining involves stimulated Raman scattering using a Stokes' shifted seed beam, the latter of which is optimized in terms of its temporal and spectral properties. Beams from fiber lasers can thus be combined to attain pulses with peak energies in excess of the fiber laser self-focusing limit of 4 MW while retaining the advantages of a fiber laser system of high average power with good beam quality.

  20. Raman beam combining for laser brightness enhancement

    DOE Patents [OSTI]

    Dawson, Jay W; Allen, Grahan S; Pax, Paul H; Heebner, John E; Sridharan, Arun K; Rubenchik, Alexander M; Barty, Christopher B.J

    2015-11-05

    An optical source capable of enhanced scaling of pulse energy and brightness utilizes an ensemble of single-aperture fiber lasers as pump sources, with each such fiber laser operating at acceptable pulse energy levels. Beam combining involves stimulated Raman scattering using a Stokes' shifted seed beam, the latter of which is optimized in terms of its temporal and spectral properties. Beams from fiber lasers can thus be combined to attain pulses with peak energies in excess of the fiber laser self-focusing limit of 4 MW while retaining the advantages of a fiber laser system of high average power with good beam quality.

  1. Discovery of a GeV Blazar Shining Through the Galactic Plane

    SciTech Connect (OSTI)

    Vandenbroucke, J.; Buehler, R.; Ajello, M.; Bechtol, K.; /Stanford U., HEPL /KIPAC, Menlo Park /SLAC; Bellini, A.; /Padua U., Astron. Dept. /Baltimore, Space Telescope Sci.; Bolte, M.; /UC, Santa Cruz; Cheung, C.C.; /Naval Research Lab, Wash., D.C. /NAS, Washington, D.C.; Civano, F.; /Smithsonian Astrophys. Observ.; Donato, D.; /NASA, Goddard; Fuhrmann, L.; /Bonn, Max Planck Inst., Radioastron.; Funk, S.; Healey, S.E.; /Stanford U., HEPL /KIPAC, Menlo Park /SLAC; Hill, A.B.; /Joseph Fourier U.; Knigge, C.; /Southampton U.; Madejski, G.M.; Romani, R.W.; /Stanford U., HEPL /KIPAC, Menlo Park /SLAC; Santander-Garcia, M.; /IAC, La Laguna /Isaac Newton Group /Laguna U., Tenerife; Shaw, M.S.; /Stanford U., HEPL /KIPAC, Menlo Park /SLAC; Steeghs, D.; /Warwick U.; Torres, M.A.P.; /Smithsonian Astrophys. Observ.; Van Etten, A.; /Stanford U., HEPL /KIPAC, Menlo Park /SLAC /Texas U., Astron. Dept.

    2011-08-11

    The Fermi Large Area Telescope (LAT) discovered a new gamma-ray source near the Galactic plane, Fermi J0109+6134, when it flared brightly in 2010 February. The low Galactic latitude (b = -1.2{sup o}) indicated that the source could be located within the Galaxy, which motivated rapid multi-wavelength follow-up including radio, optical, and X-ray observations. We report the results of analyzing all 19 months of LAT data for the source, and of X-ray observations with both Swift and the Chandra X-ray Observatory. We determined the source redshift, z = 0.783, using a Keck LRIS observation. Finally, we compiled a broadband spectral energy distribution (SED) from both historical and new observations contemporaneous with the 2010 February flare. The redshift, SED, optical line width, X-ray obsorption, and multi-band variability indicate that this new Gev source is a blazar seen through the Galactic plane. Because several of the optical emission lines have equivalent width > 5 {angstrom}, this blazar belongs in the flat-spectrum radio quasar category.

  2. BrightView Systems Ltd | Open Energy Information

    Open Energy Info (EERE)

    Ltd Jump to: navigation, search Name: BrightView Systems Ltd Place: Petach-Tikva, Israel Zip: 49510 Product: Has developed an unspecified technology for PV cell manufacture....

  3. NanoBright Technologies Pte Ltd | Open Energy Information

    Open Energy Info (EERE)

    develops luminescent materials, including substances used to improve the efficiency of solar cells. References: NanoBright Technologies Pte Ltd1 This article is a stub. You...

  4. High Average Brightness Photocathode Development for FEL Applications...

    Office of Scientific and Technical Information (OSTI)

    High Average Brightness Photocathode Development for FEL Applications Citation Details ... OFFICE OF SCIENCE (SC) Country of Publication: United States Language: English Subject: 46

  5. High Brightness Neutron Source for Radiography

    SciTech Connect (OSTI)

    Cremer, J. T.; Piestrup, Melvin, A.; Gary, Charles, K.; Harris, Jack, L. Williams, David, J.; Jones, Glenn, E.; Vainionpaa, J. , H.; Fuller, Michael, J.; Rothbart, George, H.; Kwan, J., W.; Ludewigt, B., A.; Gough, R.., A..; Reijonen, Jani; Leung, Ka-Ngo

    2008-12-08

    This research and development program was designed to improve nondestructive evaluation of large mechanical objects by providing both fast and thermal neutron sources for radiography. Neutron radiography permits inspection inside objects that x-rays cannot penetrate and permits imaging of corrosion and cracks in low-density materials. Discovering of fatigue cracks and corrosion in piping without the necessity of insulation removal is possible. Neutron radiography sources can provide for the nondestructive testing interests of commercial and military aircraft, public utilities and petrochemical organizations. Three neutron prototype neutron generators were designed and fabricated based on original research done at the Lawrence Berkeley National Laboratory (LBNL). The research and development of these generators was successfully continued by LBNL and Adelphi Technology Inc. under this STTR. The original design goals of high neutron yield and generator robustness have been achieved, using new technology developed under this grant. In one prototype generator, the fast neutron yield and brightness was roughly 10 times larger than previously marketed neutron generators using the same deuterium-deuterium reaction. In another generator, we integrate a moderator with a fast neutron source, resulting in a high brightness thermal neutron generator. The moderator acts as both conventional moderator and mechanical and electrical support structure for the generator and effectively mimics a nuclear reactor. In addition to the new prototype generators, an entirely new plasma ion source for neutron production was developed. First developed by LBNL, this source uses a spiral antenna to more efficiently couple the RF radiation into the plasma, reducing the required gas pressure so that the generator head can be completely sealed, permitting the possible use of tritium gas. This also permits the generator to use the deuterium-tritium reaction to produce 14-MeV neutrons with increases of yield of two orders of magnitude. The first fast neutron radiographic images were obtained using neutron cameras and a new fast neutron generator. These early images demonstrated the feasibility of using fast neutrons for imaging and penetrating thick objects of high density and imaging. Fast neutrons can be used to image low atomic number materials (e.g. plastics, explosives, lubricants and ceramics) that are shielded by high density materials (e.g. lead, tungsten and uranium). Fast neutron radiography could be used as a means to screen weapons for flaws and chemical stability. X-ray radiography can not easily do this. Fast neutron imaging is technically difficult and, consequently, a completely undeveloped market. Two of the generators were designed to have small source size and high brightness, ideal for fast-neutron imaging. With these generators we successfully used two fast neutron cameras: one developed by us, and another developed by a collaborator, Commonwealth Scientific and Industrial Research Organization, CSIRO. We have successfully used these cameras to obtain low resolution images of various objects such as pipe fittings filled with water and other mechanical objects. Higher resolution and contrast images are expected by decreasing the source size and increasing generator yield.

  6. Analysis of Bright Harvest Remote Analysis for Residential Solar Installations

    SciTech Connect (OSTI)

    Nangle, John; Simon, Joseph

    2015-06-17

    Bright Harvest provides remote shading analysis and design products for residential PV system installers. The National Renewable Energy Laboratory (NREL) through the NREL Commercialization Assistance Program, completed comparative assessments between on-site measurements and remotely calculated values to validate the accuracy of Bright Harvest’s remote shading and power generation.

  7. High output lamp with high brightness

    DOE Patents [OSTI]

    Kirkpatrick, Douglas A.; Bass, Gary K.; Copsey, Jesse F.; Garber, Jr., William E.; Kwong, Vincent H.; Levin, Izrail; MacLennan, Donald A.; Roy, Robert J.; Steiner, Paul E.; Tsai, Peter; Turner, Brian P.

    2002-01-01

    An ultra bright, low wattage inductively coupled electrodeless aperture lamp is powered by a solid state RF source in the range of several tens to several hundreds of watts at various frequencies in the range of 400 to 900 MHz. Numerous novel lamp circuits and components are disclosed including a wedding ring shaped coil having one axial and one radial lead, a high accuracy capacitor stack, a high thermal conductivity aperture cup and various other aperture bulb configurations, a coaxial capacitor arrangement, and an integrated coil and capacitor assembly. Numerous novel RF circuits are also disclosed including a high power oscillator circuit with reduced complexity resonant pole configuration, parallel RF power FET transistors with soft gate switching, a continuously variable frequency tuning circuit, a six port directional coupler, an impedance switching RF source, and an RF source with controlled frequency-load characteristics. Numerous novel RF control methods are disclosed including controlled adjustment of the operating frequency to find a resonant frequency and reduce reflected RF power, controlled switching of an impedance switched lamp system, active power control and active gate bias control.

  8. High Average Brightness Photocathode Development for FEL Applications

    Office of Scientific and Technical Information (OSTI)

    (Conference) | SciTech Connect High Average Brightness Photocathode Development for FEL Applications Citation Details In-Document Search Title: High Average Brightness Photocathode Development for FEL Applications Authors: Rao T. ; Ben-Zvi I. ; Skarita, J. ; Wang, E. Publication Date: 2013-08-26 OSTI Identifier: 1095687 Report Number(s): BNL--101607-2013-CP KA-04 DOE Contract Number: DE-AC02-98CH10886 Resource Type: Conference Resource Relation: Conference: 35th International Free Electron

  9. A Bright Idea: New Efficiency Standards for Incandescent and Fluorescent

    Energy Savers [EERE]

    Lights | Department of Energy A Bright Idea: New Efficiency Standards for Incandescent and Fluorescent Lights A Bright Idea: New Efficiency Standards for Incandescent and Fluorescent Lights July 21, 2009 - 5:18pm Addthis John Lippert Pretty soon, lighting is going to get a lot more efficient. New standards for incandescent reflector bulbs, general purpose fluorescent bulbs, and regular incandescent bulbs are going into effect beginning in approximately three years. You may be curious about

  10. The effect of bright lines in environmental risk communication

    SciTech Connect (OSTI)

    Wilson, K.N.; Desvousges, W.H.; Smith, K.V.; Payne, J. )

    1993-01-01

    Bright lines in environmental risk communication refer to the specific levels at which an environmental risk becomes a serious health threat and action should be taken to mitigate its effects. This study examined the effect of bright lines'' in risk communication by emphasizing the radon exposure threshold level of 4 picocuries per liter. Specifically, the authors developed a computer-assisted interview containing bright-line versions of risk information. The bright-line version contained a range of possible radon levels, the corresponding number of estimated lung cancer cases, the relative health risk from radon compared to other health risks, and the EPA guidelines for mitigating levels above 4 picocuries in the home. The non-bright line version was identical to the bright-line version, except it did not include the EPA's mitigation recommendations. Effect measures included respondents' change in perceived risk after reading their materials, intended testing behavior, and advice to their neighbor for a specified radon level either above or below the 4 picocury threshold level. This paper discusses broader policy implications for designing effective risk communication programs.

  11. Bright Skies Ahead for Moapa | Department of Energy

    Office of Environmental Management (EM)

    Bright Skies Ahead for Moapa Bright Skies Ahead for Moapa March 1, 2013 - 7:19pm Addthis In addition to the planned 250-MW solar farm set to begin construction in June 2013, the Moapa Band of Paiutes is working on a second 150-MW project that would use both PV and concentrated solar technologies to generate power for the Tribe. Photo from Moapa Band of Paiutes. In addition to the planned 250-MW solar farm set to begin construction in June 2013, the Moapa Band of Paiutes is working on a second

  12. 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.

  13. Ultra-bright pulsed electron beam with low longitudinal emittance

    DOE Patents [OSTI]

    Zolotorev, Max (Oakland, CA)

    2010-07-13

    A high-brightness pulsed electron source, which has the potential for many useful applications in electron microscopy, inverse photo-emission, low energy electron scattering experiments, and electron holography has been described. The source makes use of Cs atoms in an atomic beam. The source is cycled beginning with a laser pulse that excites a single Cs atom on average to a band of high-lying Rydberg nP states. The resulting valence electron Rydberg wave packet evolves in a nearly classical Kepler orbit. When the electron reaches apogee, an electric field pulse is applied that ionizes the atom and accelerates the electron away from its parent ion. The collection of electron wave packets thus generated in a series of cycles can occupy a phase volume near the quantum limit and it can possess very high brightness. Each wave packet can exhibit a considerable degree of coherence.

  14. PPPL: Great story, Bright Future | Princeton Plasma Physics Lab

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

    PPPL: Great story, Bright Future By Kitta MacPherson May 12, 2011 Tweet Widget Google Plus One Share on Facebook Stewart Prager Stewart Prager Stewart Prager Stewart Prager Stewart Prager Stewart Prager Perspective on: The future of fusion Name: Stewart Prager Title: Director of the U.S. Department of Energy's Princeton Plasma Physics Laboratory Administrative focus:Prager, a well-known plasma physicist and fusion scientist with a distinguished career and a record of discovery at the University

  15. Bright Lights From Dark Places | Department of Energy

    Energy Savers [EERE]

    From Dark Places Bright Lights From Dark Places May 23, 2011 - 2:09pm Addthis Charles Rousseaux Charles Rousseaux Senior Communications Specialist (detailee) What are the key facts? Scientists used the illumination of some 14,000 quasars -- powered by gigantic black holes at the heart of galaxies -- about 10 to 12 billion light years away to create the new map. Scientists at the Energy Department's national labs are using black holes to illuminate the distant parts of the universe in detail.

  16. Bright Lights and Even Brighter Ideas | Department of Energy

    Energy Savers [EERE]

    and Even Brighter Ideas Bright Lights and Even Brighter Ideas July 3, 2013 - 2:04pm Addthis Kim Kisslinger, a researcher at Brookhaven Lab's Center for Functional Nanomaterials seen here with a focused-ion beam instrument, reduced the indium gallium nitride (InGaN) samples to a thickness of just 20 nanometers to prepare them for electron microscopy. | Photo courtesy of Brookhaven National Laboratory. Kim Kisslinger, a researcher at Brookhaven Lab's Center for Functional Nanomaterials seen here

  17. Bright X-ray Stainless Steel K-shell Source Development at the...

    Office of Scientific and Technical Information (OSTI)

    Bright X-ray Stainless Steel K-shell Source Development at the National Ignition Facility Citation Details In-Document Search Title: Bright X-ray Stainless Steel K-shell Source ...

  18. Bright X-ray Stainless Steel K-shell Source Development at the...

    Office of Scientific and Technical Information (OSTI)

    Bright X-ray Stainless Steel K-shell Source Development at the National Ignition Facility Citation Details In-Document Search Title: Bright X-ray Stainless Steel K-shell Source...

  19. DOE Zero Energy Ready Home Case Study: BrightLeaf Homes, McCormick...

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

    BrightLeaf Homes, McCormick Avenue, Brookfield, IL DOE Zero Energy Ready Home Case Study: BrightLeaf Homes, McCormick Avenue, Brookfield, IL Case study of a DOE 2015 Housing ...

  20. High-Z Non-Equilibrium Physics and Bright X-ray Sources with...

    Office of Scientific and Technical Information (OSTI)

    Z Non-Equilibrium Physics and Bright X-ray Sources with New Laser Targets Citation Details In-Document Search Title: High-Z Non-Equilibrium Physics and Bright X-ray Sources with...

  1. High-Ti-concentration aerogels for bright x-ray sources (Technical...

    Office of Scientific and Technical Information (OSTI)

    Ti-concentration aerogels for bright x-ray sources Citation Details In-Document Search Title: High-Ti-concentration aerogels for bright x-ray sources Authors: Perez, F ; Patterson,...

  2. Bright x-ray sources from laser irradiation of foams with high...

    Office of Scientific and Technical Information (OSTI)

    Bright x-ray sources from laser irradiation of foams with high concentration of Ti Citation Details In-Document Search Title: Bright x-ray sources from laser irradiation of foams...

  3. High-Ti-concentration aerogels for bright x-ray sources (Technical...

    Office of Scientific and Technical Information (OSTI)

    Ti-concentration aerogels for bright x-ray sources Citation Details In-Document Search Title: High-Ti-concentration aerogels for bright x-ray sources You are accessing a...

  4. DOE Tour of Zero Floorplans: McCormick Avenue by BrightLeaf Homes |

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

    Department of Energy McCormick Avenue by BrightLeaf Homes DOE Tour of Zero Floorplans: McCormick Avenue by BrightLeaf Homes DOE Tour of Zero Floorplans: McCormick Avenue by BrightLeaf

  5. T-rays: What a Bright Future | Jefferson Lab

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

    T-rays: What a Bright Future - Scientists Beef up Faint Energy By A.J. Hostetler, Times-Dispatch Using the powerful laser at the Jefferson Lab, scientists can muster a souped-up beam of radiation 100,000 times brighter than with previous sources. Terahertz radiation, known as T-rays, was emitted when electrons whizzing along at nearly the speed of light were deflected by a magnetic field. The seemingly faint energy - that of five nightlights - demonstrates T-rays' potential for medical imaging,

  6. Investigation of fundamental limits to beam brightness available from photoinjectors

    SciTech Connect (OSTI)

    Bazarov, Ivan

    2015-07-09

    The goal of this project was investigation of fundamental limits to beam brightness available from photoinjectors. This basic research in accelerator physics spanned over 5 years aiming to extend the fundamental understanding of high average current, low emittance sources of relativistic electrons based on photoemission guns, a necessary prerequisite for a new generation of coherent X-ray synchrotron radiation facilities based on continuous duty superconducting linacs. The program focused on two areas critical to making advances in the electron source performance: 1) the physics of photocathodes for the production of low emittance electrons and 2) control of space charge forces in the immediate vicinity to the cathode via 3D laser pulse shaping.

  7. Bright discrete solitons in spatially modulated DNLS systems

    SciTech Connect (OSTI)

    Kevrekidis, P. G.; Horne, R. L.; Whitaker, N.; Hoq, Q. E.; Kip, D.

    2015-08-04

    In the present work, we revisit the highly active research area of inhomogeneously nonlinear defocusing media and consider the existence, spectral stability and nonlinear dynamics of bright solitary waves in them. We use the anti-continuum limit of vanishing coupling as the starting point of our analysis, enabling in this way a systematic characterization of the branches of solutions. Our stability findings and bifurcation characteristics reveal the enhanced robustness and wider existence intervals of solutions with a broader support, culminating in the 'extended' solution in which all sites are excited. Our eigenvalue predictions are corroborated by numerical linear stability analysis. In conclusion, the dynamics also reveal a tendency of the solution profiles to broaden, in line with the above findings. These results pave the way for further explorations of such states in discrete systems, including in higher dimensional settings.

  8. Bright discrete solitons in spatially modulated DNLS systems

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

    Kevrekidis, P. G.; Horne, R. L.; Whitaker, N.; Hoq, Q. E.; Kip, D.

    2015-08-04

    In the present work, we revisit the highly active research area of inhomogeneously nonlinear defocusing media and consider the existence, spectral stability and nonlinear dynamics of bright solitary waves in them. We use the anti-continuum limit of vanishing coupling as the starting point of our analysis, enabling in this way a systematic characterization of the branches of solutions. Our stability findings and bifurcation characteristics reveal the enhanced robustness and wider existence intervals of solutions with a broader support, culminating in the 'extended' solution in which all sites are excited. Our eigenvalue predictions are corroborated by numerical linear stability analysis. Inmore » conclusion, the dynamics also reveal a tendency of the solution profiles to broaden, in line with the above findings. These results pave the way for further explorations of such states in discrete systems, including in higher dimensional settings.« less

  9. Bright high-repetition-rate source of narrowband extreme-ultraviolet...

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect Search Results Journal Article: Bright high-repetition-rate source of ... nanomaterials, or correlated solids and are of interest for advanced applications. ...

  10. BrightPhase Energy Inc formerly Solar Focus | Open Energy Information

    Open Energy Info (EERE)

    Product: Solar Focus develops thermal and electric reflecting concentrator systems for water heating and electricity generation. References: BrightPhase Energy Inc (formerly...

  11. Low Cost Lithography Tool for High Brightness LED Manufacturing

    SciTech Connect (OSTI)

    Andrew Hawryluk; Emily True

    2012-06-30

    The objective of this activity was to address the need for improved manufacturing tools for LEDs. Improvements include lower cost (both capital equipment cost reductions and cost-ofownership reductions), better automation and better yields. To meet the DOE objective of $1- 2/kilolumen, it will be necessary to develop these highly automated manufacturing tools. Lithography is used extensively in the fabrication of high-brightness LEDs, but the tools used to date are not scalable to high-volume manufacturing. This activity addressed the LED lithography process. During R&D and low volume manufacturing, most LED companies use contact-printers. However, several industries have shown that these printers are incompatible with high volume manufacturing and the LED industry needs to evolve to projection steppers. The need for projection lithography tools for LED manufacturing is identified in the Solid State Lighting Manufacturing Roadmap Draft, June 2009. The Roadmap states that Projection tools are needed by 2011. This work will modify a stepper, originally designed for semiconductor manufacturing, for use in LED manufacturing. This work addresses improvements to yield, material handling, automation and throughput for LED manufacturing while reducing the capital equipment cost.

  12. DOE Tour of Zero: McCormick Avenue by BrightLeaf Homes | Department of

    Energy Savers [EERE]

    Energy McCormick Avenue by BrightLeaf Homes DOE Tour of Zero: McCormick Avenue by BrightLeaf Homes 1 of 14 BrightLeaf Homes built this 2,880-square-foot home in a Chicago suburb, Brookfield, Illinois, to the performance criteria of the U.S. Department of Energy Zero Energy Ready Home (ZERH) program. 2 of 14 Downspouts and proper grading help ensure water drains away from the two-story home. 3 of 14 Deep overhangs shield second-story windows from sun, rain, and snow while ultra-efficient

  13. DOE Finalizes $1.6 Billion Loan Guarantee for BrightSource Energy Inc. |

    Energy Savers [EERE]

    Department of Energy 6 Billion Loan Guarantee for BrightSource Energy Inc. DOE Finalizes $1.6 Billion Loan Guarantee for BrightSource Energy Inc. April 11, 2011 - 12:00am Addthis Washington D.C. - Announced this afternoon via Twitter.com/energy, the U.S. Department of Energy finalized $1.6 billion in loan guarantees to support the Ivanpah Solar Energy Generating System, three related utility-scale concentrated solar power plants. The Recovery Act funded project, sponsored by BrightSource

  14. DOE Tour of Zero: McCormick Avenue by BrightLeaf Homes | Department of

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

    Energy McCormick Avenue by BrightLeaf Homes DOE Tour of Zero: McCormick Avenue by BrightLeaf Homes Addthis 1 of 14 BrightLeaf Homes built this 2,880-square-foot home in a Chicago suburb, Brookfield, Illinois, to the performance criteria of the U.S. Department of Energy Zero Energy Ready Home (ZERH) program. 2 of 14 Downspouts and proper grading help ensure water drains away from the two-story home. 3 of 14 Deep overhangs shield second-story windows from sun, rain, and snow while

  15. DOE Zero Energy Ready Home Case Study: BrightLeaf Homes, McCormick Avenue,

    Office of Environmental Management (EM)

    Brookfield, IL | Department of Energy BrightLeaf Homes, McCormick Avenue, Brookfield, IL DOE Zero Energy Ready Home Case Study: BrightLeaf Homes, McCormick Avenue, Brookfield, IL DOE Zero Energy Ready Home Case Study: BrightLeaf Homes, McCormick Avenue, Brookfield, IL Case study of a DOE 2015 Housing Innovation Award winning production home in the cold climate that got a HERS 38 without PV, with staggered 2x4 studs every 8"on a 2x6 plate with dense-packed R-25 cellulose, basement with

  16. HIA 2015 DOE Zero Energy Ready Home Case Study: BrightLeaf Homes...

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

    ... On windows sills BrightLeaf installs what Sanders refers to as a poor man's pan flashing-they place a 5.5-inch-wide cedar plank, which has a natural bevel, on the sill with the ...

  17. High-Z Non-Equilibrium Physics and Bright X-ray Sources with...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: High-Z Non-Equilibrium Physics and Bright X-ray Sources with New Laser Targets Citation Details In-Document Search Title: High-Z Non-Equilibrium Physics and ...

  18. NREL and SkyFuel Partnership Reflects Bright Future for Solar...

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

    NREL and SkyFuel Partnership Reflects Bright Future for Solar Energy In this video, NREL Principal Scientist Gary Jorgensen and SkyFuel Chief Technology Officer Randy Gee talk ...

  19. Panel Discussion: The SunShot Initiative: The Future is Bright

    Broader source: Energy.gov [DOE]

    The future of solar energy can be bright. Solar energy is growing quickly; in certain parts of the U.S., solar is on the precipice of becoming a mainstream generation source . As solar power’s...

  20. NREL and SkyFuel Partnership Reflects Bright Future for Solar Energy -

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

    Energy Innovation Portal Solar Thermal Solar Thermal Return to Search NREL and SkyFuel Partnership Reflects Bright Future for Solar Energy National Renewable Energy Laboratory Success Story Details Partner Location Agreement Type Publication Date SkyFuel Inc. CO License Cooperative Research (CRADA) August 3, 2009 Video NREL Success Stories - SkyFuel Partnership Reflects Bright Future Summary Huge parabolic mirrors catching the sun's rays could crisscross America's deserts soon, thanks to a

  1. 'DisrupTech' event to highlight bright ideas from Los Alamos

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

    'DisrupTech' event to highlight bright ideas from Los Alamos 'DisrupTech' event to highlight bright ideas from Los Alamos DisrupTech is hosted by the Richard P. Feynman Center for Innovation at Los Alamos and the New Mexico Angels. July 14, 2015 DisrupTech will feature eight technology presentations in the areas of sustainable fracking, solar cell materials, biofuels, tamper forensics, neutralization of toxic chemicals, biotechnology, water treatment, and industrial process improvement.

  2. Stability and tunneling dynamics of a dark-bright soliton pair in a harmonic trap

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

    Karamatskos, E. T.; Stockhofe, J.; Kevrekidis, P. G.; Schmelcher, P.

    2015-04-30

    In this study, we consider a binary repulsive Bose-Einstein condensate in a harmonic trap in one spatial dimension and investigate particular solutions consisting of two dark-bright solitons. There are two different stationary solutions characterized by the phase difference in the bright component, in-phase and out-of-phase states. We show that above a critical particle number in the bright component, a symmetry-breaking bifurcation of the pitchfork type occurs that leads to a new asymmetric solution whereas the parental branch, i.e., the out-of-phase state, becomes unstable. These three different states support different small amplitude oscillations, characterized by an almost stationary density of themore » dark component and a tunneling of the bright component between the two dark solitons. Within a suitable effective double-well picture, these can be understood as the characteristic features of a bosonic Josephson junction (BJJ), and we show within a two-mode approach that all characteristic features of the BJJ phase space are recovered. For larger deviations from the stationary states, the simplifying double-well description breaks down due to the feedback of the bright component onto the dark one, causing the solitons to move. In this regime we observe intricate anharmonic and aperiodic dynamics, exhibiting remnants of the BJJ phase space.« less

  3. Bright tunable femtosecond x-ray emission from laser irradiated micro-droplets

    SciTech Connect (OSTI)

    Yu, Tong-Pu Hu, Li-Xiang; Yin, Yan; Shao, Fu-Qiu; Zhuo, Hong-Bin; Ma, Yan-Yun; Yang, Xiao-Hu; Luo, Wen; Pukhov, Alexander

    2014-09-15

    It is demonstrated that bright femtosecond X-rays can be obtained by irradiating a moderate laser onto a helium micro-droplet. The laser ponderomotive force continuously sweeps electrons from the droplets and accelerates them forward. The electrons exposed in the outrunning laser field oscillate transversely and emit photons in the forward direction. The total flux of photons with energies above 1?keV is as high as 10{sup 9}/shot which is about 10-fold enhancement compared with betatron oscillation under similar laser conditions. The maximum achieved peak brightness is up to 10{sup 21} photons/s/mm{sup 2}/mrad{sup 2}/0.1%BW. By adjusting laser and droplet parameters, we can get tunable X-rays with required brightness and energy.

  4. SOLAR POLAR X-RAY JETS AND MULTIPLE BRIGHT POINTS: EVIDENCE FOR SYMPATHETIC ACTIVITY

    SciTech Connect (OSTI)

    Pucci, Stefano; Romoli, Marco; Poletto, Giannina; Sterling, Alphonse C.

    2012-02-15

    We present an analysis of X-ray bright points (BPs) and X-ray jets observed by Hinode/X-Ray Telescope on 2007 November 2-4, within the solar northern polar coronal hole. After selecting small subregions that include several BPs, we followed their brightness evolution over a time interval of a few hours, when several jets were observed. We find that most of the jets occurred in close temporal association with brightness maxima in multiple BPs: more precisely, most jets are closely correlated with the brightening of at least two BPs. We suggest that the jets result from magnetic connectivity changes that also induce the BP variability. We surmise that the jets and implied magnetic connectivity we describe are small-scale versions of the active-region-scale phenomenon, whereby flares and eruptions are triggered by interacting bipoles.

  5. High-Throughput, High-Precision Hot Testing Tool for High-Brightness

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

    Light-Emitting Diode Testing | Department of Energy Throughput, High-Precision Hot Testing Tool for High-Brightness Light-Emitting Diode Testing High-Throughput, High-Precision Hot Testing Tool for High-Brightness Light-Emitting Diode Testing Lead Performer: KLA-Tencor Corporation - Milpitas, CA Partners: Ocean Optics - Dunedin, FL DOE Total Funding: $3,994,729 Cost Share: $4,626,422 Project Term: 8/15/2012 - 9/30/2015 Funding Opportunity: SSL Manufacturing R&D Funding Opportunity

  6. High-Z Non-Equilibrium Physics and Bright X-ray Sources with New Laser

    Office of Scientific and Technical Information (OSTI)

    Targets (Technical Report) | SciTech Connect Technical Report: High-Z Non-Equilibrium Physics and Bright X-ray Sources with New Laser Targets Citation Details In-Document Search Title: High-Z Non-Equilibrium Physics and Bright X-ray Sources with New Laser Targets Authors: Colvin, J D Publication Date: 2012-08-28 OSTI Identifier: 1073135 Report Number(s): LLNL-TR-577612 DOE Contract Number: W-7405-ENG-48 Resource Type: Technical Report Research Org: Lawrence Livermore National Laboratory

  7. Bright X-ray Stainless Steel K-shell Source Development at the National

    Office of Scientific and Technical Information (OSTI)

    Ignition Facility (Journal Article) | SciTech Connect Bright X-ray Stainless Steel K-shell Source Development at the National Ignition Facility Citation Details In-Document Search Title: Bright X-ray Stainless Steel K-shell Source Development at the National Ignition Facility Authors: May, M J ; Fournier, K B ; Colvin, J D ; Barrios, M A ; Dewald, E ; Hohenberger, M ; Moody, J ; Patterson, J R ; Schneider, M ; Widmann, K ; Regan, S P Publication Date: 2015-01-30 OSTI Identifier: 1234624

  8. Bright high-repetition-rate source of narrowband extreme-ultraviolet

    Office of Scientific and Technical Information (OSTI)

    harmonics beyond 22 eV (Journal Article) | SciTech Connect SciTech Connect Search Results Journal Article: Bright high-repetition-rate source of narrowband extreme-ultraviolet harmonics beyond 22 eV Citation Details In-Document Search Title: Bright high-repetition-rate source of narrowband extreme-ultraviolet harmonics beyond 22 eV Table-top sources of extreme ultraviolet (XUV) light based on high-harmonic generation (HHG) provide novel insight into the fundamental properties of molecules,

  9. Bright x-ray sources from laser irradiation of foams with high

    Office of Scientific and Technical Information (OSTI)

    concentration of Ti (Journal Article) | SciTech Connect Bright x-ray sources from laser irradiation of foams with high concentration of Ti Citation Details In-Document Search Title: Bright x-ray sources from laser irradiation of foams with high concentration of Ti Low-density foams irradiated by a 20 kJ laser at the Omega laser facility (Laboratory for Laser Energetics, Rochester, NY, USA) are shown to convert more than 5% of the laser energy into 4.6 to 6.0 keV x rays. This record

  10. Cracking Molecular Structures with Bright Lights - and a Few Good Eggs |

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

    Department of Energy Cracking Molecular Structures with Bright Lights - and a Few Good Eggs Cracking Molecular Structures with Bright Lights - and a Few Good Eggs June 22, 2012 - 11:04am Addthis This rendering shows a lysozyme structural model against its X-ray diffraction pattern from SLAC’s Linac Coherent Light Source (LCLS), a powerful X-ray laser facility. Researchers have achieved high-resolution images of these simple biomolecules using advanced crystallography at LCLS. | Photo by

  11. Bright Young Minds for a Clean Energy Future | Department of Energy

    Energy Savers [EERE]

    Young Minds for a Clean Energy Future Bright Young Minds for a Clean Energy Future August 16, 2011 - 12:11pm Addthis Bright Young Minds for a Clean Energy Future Sarah Jane Maxted Special Assistant, Office of Energy Efficiency & Renewable Energy How can I participate? Registration begins August 15 and ends on October 7, 2011. Students are encouraged to register with their teachers by September 30, 2011 to take advantage of the full energy savings period. It's that time again: Back to school

  12. SunShot Grand Challenge Summit: Bright Outlook to Achieve SunShot Goal |

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

    Department of Energy Grand Challenge Summit: Bright Outlook to Achieve SunShot Goal SunShot Grand Challenge Summit: Bright Outlook to Achieve SunShot Goal May 30, 2014 - 2:15pm Addthis Watch the video above to learn more about the Energy Department's SunShot Initiative, a national collaborative effort to make solar energy cost-competitive with other forms of electricity. Minh Le Minh Le Director, Solar Energy Technologies Office Last week, hundreds of solar energy leaders gathered in

  13. The Bright Lights in New York Could Be Solar | Department of Energy

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

    The Bright Lights in New York Could Be Solar The Bright Lights in New York Could Be Solar September 4, 2012 - 12:29pm Addthis The NYC Solar Map allows users to estimate the solar energy potential for every building in New York City’s five boroughs. The NYC Solar Map allows users to estimate the solar energy potential for every building in New York City's five boroughs. Minh Le Minh Le Director, Solar Energy Technologies Office What is the New York City Solar Map The New York City Solar Map

  14. BRIGHT BROADBAND AFTERGLOWS OF GRAVITATIONAL WAVE BURSTS FROM MERGERS OF BINARY NEUTRON STARS

    SciTech Connect (OSTI)

    Gao He; Ding Xuan; Wu Xuefeng; Zhang Bing; Dai Zigao E-mail: zhang@physics.unlv.edu

    2013-07-10

    If double neutron star mergers leave behind a massive magnetar rather than a black hole, then a bright early afterglow can follow the gravitational wave burst (GWB) even if there is no short gamma-ray burst (SGRB)-GWB association or if there is an association but the SGRB does not beam toward Earth. Besides directly dissipating the proto-magnetar wind, as suggested by Zhang, here we suggest that the magnetar wind could push the ejecta launched during the merger process and, under certain conditions, would reach a relativistic speed. Such a magnetar-powered ejecta, when interacting with the ambient medium, would develop a bright broadband afterglow due to synchrotron radiation. We study this physical scenario in detail and present the predicted X-ray, optical, and radio light curves for a range of magnetar and ejecta parameters. We show that the X-ray and optical light curves usually peak around the magnetar spin-down timescale ({approx}10{sup 3}-10{sup 5} s), reaching brightnesses readily detectable by wide-field X-ray and optical telescopes, and remain detectable for an extended period. The radio afterglow peaks later, but is much brighter than the case without a magnetar energy injection. Therefore, such bright broadband afterglows, if detected and combined with GWBs in the future, would be a probe of massive millisecond magnetars and stiff equations of state for nuclear matter.

  15. Bright Ideas

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

    have sample lighting types. TIME 30 MIN. SUBJECTS Math, science, critical thinking. VOCABULARY Compact fluorescent, lumen, watt, efficient. MATERIALS Copies of lighting survey...

  16. Bright Blue

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

    was discontinued due to our idea has changed how to attack the problem. magnetic field parallel to the ER velocity vector - a large angle acceptance Fall 2006 measurements: 197...

  17. Volume-scalable high-brightness three-dimensional visible light source

    DOE Patents [OSTI]

    Subramania, Ganapathi; Fischer, Arthur J; Wang, George T; Li, Qiming

    2014-02-18

    A volume-scalable, high-brightness, electrically driven visible light source comprises a three-dimensional photonic crystal (3DPC) comprising one or more direct bandgap semiconductors. The improved light emission performance of the invention is achieved based on the enhancement of radiative emission of light emitters placed inside a 3DPC due to the strong modification of the photonic density-of-states engendered by the 3DPC.

  18. JASPER Reaches Shot 125 Milestone; Future Looks Bright for More Growth

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

    JASPER Reaches Shot 125 Milestone; Future Looks Bright for More Growth The Joint Actinide Shock Physics Research (JASPER) facility at the Nevada National Security Site (NNSS) features more than just one of the most powerful gas guns on the planet - it has quickly become an integral part of the Stockpile Stewardship program for the data it provides. Scientists from the National Laboratories use JASPER to conduct experiments, or "shots," that subject materials to extreme pressures and

  19. NEAR-IR IMAGING POLARIMETRY TOWARD A BRIGHT-RIMMED CLOUD: MAGNETIC FIELD IN SFO 74

    SciTech Connect (OSTI)

    Kusune, Takayoshi; Sugitani, Koji [Graduate School of Natural Sciences, Nagoya City University, Mizuho-ku, Nagoya 467-8501 (Japan); Miao, Jingqi [Centre for Astrophysics and Planetary Science, School of Physical Sciences, University of Kent, Canterbury, Kent CT2 7NR (United Kingdom); Tamura, Motohide; Kwon, Jungmi [Department of Astronomy, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan); Sato, Yaeko [National Astronomical Observatory, 2-21-1 Osawa, Mikata, Tokyo 181-8588 (Japan); Watanabe, Makoto [Department of Cosmosciences, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810 (Japan); Nishiyama, Shogo [Faculty of Education, Miyagi University of Education, Sendai 980-0845 (Japan); Nagayama, Takahiro [Department of Physics, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065 (Japan); Sato, Shuji [Department of Astrophysics, Nagoya University, Chikusa-ku, Nagoya 464-8602 (Japan)

    2015-01-01

    We have made near-infrared (JHK {sub s}) imaging polarimetry of a bright-rimmed cloud (SFO 74). The polarization vector maps clearly show that the magnetic field in the layer just behind the bright rim is running along the rim, quite different from its ambient magnetic field. The direction of the magnetic field just behind the tip rim is almost perpendicular to that of the incident UV radiation, and the magnetic field configuration appears to be symmetric as a whole with respect to the cloud symmetry axis. We estimated the column and number densities in the two regions (just inside and far inside the tip rim) and then derived the magnetic field strength, applying the Chandrasekhar-Fermi method. The estimated magnetic field strength just inside the tip rim, ?90 ?G, is stronger than that far inside, ?30 ?G. This suggests that the magnetic field strength just inside the tip rim is enhanced by the UV-radiation-induced shock. The shock increases the density within the top layer around the tip and thus increases the strength of the magnetic field. The magnetic pressure seems to be comparable to the turbulent one just inside the tip rim, implying a significant contribution of the magnetic field to the total internal pressure. The mass-to-flux ratio was estimated to be close to the critical value just inside the tip rim. We speculate that the flat-topped bright rim of SFO 74 could be formed by the magnetic field effect.

  20. Introducing the All-Star Geeks of SoSTEM 2014!

    Broader source: Energy.gov [DOE]

    Some of America’s top STEM doers, innovators, and thinkers will continue the celebration of all things STEM on the day after State of the Union, by participating in the second annual State of Science, Technology, Engineering, and Math (“SoSTEM”) event at the White House. Tune in at www.whitehouse.gov/live at 10am EST to watch.

  1. All-Star Nanocrystals | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    ... Publications F. Zhu, L. Men, Y. Guo, Q. Zhu, U. Bhattacharjee, P.M. Goodwin, J.W. Petrich, E.A. Smith, J. Vela, "Shape evolution and single particle luminescence of organometal ...

  2. Posters Brightness Fields of Broken Clouds V. E. Zuev, G. A. Titov, E. I. Kasyanov, and D. A. Zimin

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

    1 Posters Brightness Fields of Broken Clouds V. E. Zuev, G. A. Titov, E. I. Kasyanov, and D. A. Zimin Institute of Atmospheric Optics, Siberian Branch Russian Academy of Sciences Tomsk, Russia Introduction The radiation budget and brightness field of the system "atmosphere-underlying surface" are controlled, to a considerable degree, by the variety of forms and the strong space-time variability of cloud cover. The space and angle structure of the radiation fields of cloudy atmosphere

  3. A SOUTHERN SKY AND GALACTIC PLANE SURVEY FOR BRIGHT KUIPER BELT OBJECTS

    SciTech Connect (OSTI)

    Sheppard, Scott S.; Udalski, Andrzej; Kubiak, Marcin; Pietrzynski, Grzegorz; Poleski, Radoslaw; Soszynski, Igor; Szymanski, Michal K.; Ulaczyk, Krzysztof; Trujillo, Chadwick

    2011-10-15

    About 2500 deg{sup 2} of sky south of declination -25{sup 0} and/or near the Galactic Plane were surveyed for bright outer solar system objects. This survey is one of the first large-scale southern sky and Galactic Plane surveys to detect dwarf planets and other bright Kuiper Belt Objects in the trans-Neptunian region. The survey was able to obtain a limiting R-band magnitude of 21.6. In all, 18 outer solar system objects were detected, including Pluto which was detected near the Galactic center using optimal image subtraction techniques to remove the high stellar density background. Fourteen of the detections were previously unknown trans-Neptunian objects, demonstrating that the southern sky had not been well searched to date for bright outer solar system objects. Assuming moderate albedos, several of the new discoveries from this survey could be in hydrostatic equilibrium and thus could be considered dwarf planets. Combining this survey with previous surveys from the northern hemisphere suggests that the Kuiper Belt is nearly complete to around 21st magnitude in the R band. All the main dynamical classes in the Kuiper Belt are occupied by at least one dwarf-planet-sized object. The 3:2 Neptune resonance, which is the innermost well-populated Neptune resonance, has several large objects while the main outer Neptune resonances such as the 5:3, 7:4, 2:1, and 5:2 do not appear to have any large objects. This indicates that the outer resonances are either significantly depleted in objects relative to the 3:2 resonance or have a significantly different assortment of objects than the 3:2 resonance. For the largest objects (H < 4.5 mag), the scattered disk population appears to have a few times more objects than the main Kuiper Belt (MKB) population, while the Sedna population could be several times more than that of the MKB.

  4. EMPIRICAL DETERMINATION OF EINSTEIN A-COEFFICIENT RATIOS OF BRIGHT [Fe II] LINES

    SciTech Connect (OSTI)

    Giannini, T.; Antoniucci, S.; Nisini, B.; Lorenzetti, D.; Alcal, J. M.; Bacciotti, F.; Podio, L.; Bonito, R.; Stelzer, B.

    2015-01-01

    The Einstein spontaneous rates (A-coefficients) of Fe{sup +} lines have been computed by several authors with results that differ from each other by up to 40%. Consequently, models for line emissivities suffer from uncertainties that in turn affect the determination of the physical conditions at the base of line excitation. We provide an empirical determination of the A-coefficient ratios of bright [Fe II] lines that would represent both a valid benchmark for theoretical computations and a reference for the physical interpretation of the observed lines. With the ESO-Very Large Telescope X-shooter instrument between 3000 and 24700 , we obtained a spectrum of the bright Herbig-Haro object HH1. We detect around 100 [Fe II] lines, some of which with a signal-to-noise ratios ?100. Among these latter lines, we selected those emitted by the same level, whose dereddened intensity ratios are direct functions of the Einstein A-coefficient ratios. From the same X-shooter spectrum, we got an accurate estimate of the extinction toward HH1 through intensity ratios of atomic species, H I recombination lines and H{sub 2} ro-vibrational transitions. We provide seven reliable A-coefficient ratios between bright [Fe II] lines, which are compared with the literature determinations. In particular, the A-coefficient ratios involving the brightest near-infrared lines (?12570/?16440 and ?13209/?16440) are in better agreement with the predictions by the Quinet et al. relativistic Hartree-Fock model. However, none of the theoretical models predict A-coefficient ratios in agreement with all of our determinations. We also show that literature data of near-infrared intensity ratios better agree with our determinations than with theoretical expectations.

  5. Origin of the bright prompt optical emission in the naked eye burst

    SciTech Connect (OSTI)

    Hascoeet, R.; Daigne, F.; Mochkovitch, R.

    2010-10-15

    The huge optical brightness of GRB 080319B (the 'Naked Eye Burst') makes this event really challenging for models of the prompt GRB emission. In the framework of the internal shock model, we investigate a scenario where the dominant radiative process is synchrotron emission and the high optical flux is due to the dynamical properties of the relativistic outflow : if the initial Lorentz factor distribution in the jet is highly variable, many internal shocks will form within the outflow at various radii. The most violent shocks will produce the main gamma-ray component while the less violent ones will contribute at lower energy, including the optical range.

  6. NREL: Technology Transfer - NREL and SkyFuel Partnership Reflects Bright

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

    Future for Solar Energy NREL and SkyFuel Partnership Reflects Bright Future for Solar Energy In this video, NREL Principal Scientist Gary Jorgensen and SkyFuel Chief Technology Officer Randy Gee talk about their partnership to develop a thin film to substitute for bulkier glass mirrors on solar-collecting parabolic troughs. Get the Adobe Flash Player to see this video. Credit: Fireside Production More Information For more information about NREL's partnership with SkyFuel, read Award-Winning

  7. Much Ado about Microbunching: Coherent Bunching in High Brightness Electron Beams

    SciTech Connect (OSTI)

    Ratner, Daniel; /Stanford U. /SLAC

    2012-05-25

    The push to provide ever brighter coherent radiation sources has led to the creation of correspondingly bright electron beams. With billions of electrons packed into normalized emittances (phase space) below one micron, collective effects may dominate both the preservation and use of such ultra-bright beams. An important class of collective effects is due to density modulations within the bunch, or microbunching. Microbunching may be deleterious, as in the case of the Microbunching Instability (MBI), or it may drive radiation sources of unprecedented intensity, as in the case of Free Electron Lasers (FELs). In this work we begin by describing models of microbunching due to inherent beam shot noise, which sparks both the MBI as well as SLAC's Linac Coherent Light Source, the world's first hard X-ray laser. We first use this model to propose a mechanism for reducing the inherent beam shot noise as well as for predicting MBI effects. We then describe experimental measurements of the resulting microbunching at LCLS, including optical radiation from the MBI, as well as the first gain length and harmonic measurements from a hard X-ray FEL. In the final chapters, we describe schemes that use external laser modulations to microbunch light sources of the future. In these sections we describe coherent light source schemes for both both linacs and storage rings.

  8. A serendipitous all sky survey for bright objects in the outer solar system

    SciTech Connect (OSTI)

    Brown, M. E.; Drake, A. J.; Djorgovski, S. G.; Graham, M. J.; Mahabal, A.; Donalek, C.; Bannister, M. T.; Schmidt, B. P.; McNaught, R.; Larson, S.; Christensen, E.; Beshore, E.

    2015-02-01

    We use seven year's worth of observations from the Catalina Sky Survey and the Siding Spring Survey covering most of the northern and southern hemisphere at galactic latitudes higher than 20 to search for serendipitously imaged moving objects in the outer solar system. These slowly moving objects would appear as stationary transients in these fast cadence asteroids surveys, so we develop methods to discover objects in the outer solar system using individual observations spaced by months, rather than spaced by hours, as is typically done. While we independently discover eight known bright objects in the outer solar system, the faintest having V=19.80.1, no new objects are discovered. We find that the survey is nearly 100% efficient at detecting objects beyond 25 AU for V?19.1 (V?18.6 in the southern hemisphere) and that the probability that there is one or more remaining outer solar system object of this brightness left to be discovered in the unsurveyed regions of the galactic plane is approximately 32%.

  9. THE STABILITY OF LOW SURFACE BRIGHTNESS DISKS BASED ON MULTI-WAVELENGTH MODELING

    SciTech Connect (OSTI)

    MacLachlan, J. M.; Wood, K.; Matthews, L. D.; Gallagher, J. S.

    2011-11-01

    To investigate the structure and composition of the dusty interstellar medium (ISM) of low surface brightness (LSB) disk galaxies, we have used multi-wavelength photometry to construct spectral energy distributions for three low-mass, edge-on LSB galaxies (V{sub rot} = 88-105 km s{sup -1}). We use Monte Carlo radiation transfer codes that include the effects of transiently heated small grains and polycyclic aromatic hydrocarbon molecules to model and interpret the data. We find that, unlike the high surface brightness galaxies previously modeled, the dust disks appear to have scale heights equal to or exceeding their stellar scale heights. This result supports the findings of previous studies that low-mass disk galaxies have dust scale heights comparable to their stellar scale heights and suggests that the cold ISM of low-mass, LSB disk galaxies may be stable against fragmentation and gravitational collapse. This may help to explain the lack of observed dust lanes in edge-on LSB galaxies and their low current star formation rates. Dust masses are found in the range (1.16-2.38) x 10{sup 6} M{sub sun}, corresponding to face-on (edge-on), V-band, optical depths 0.034 {approx}< {tau}{sub face} {approx}< 0.106 (0.69 {approx}< {tau}{sub eq} {approx}< 1.99).

  10. Bright microwave pulses from PSR B0531+21 observed with a prototype transient survey receiver

    SciTech Connect (OSTI)

    O'Dea, J. Andrew; Cheng, Tsan-Huei; Buu, Chau M.; Asmar, Sami W.; Armstrong, J. W.; Jenet, F. A.; Beroiz, Martin

    2014-05-01

    Recent discoveries of transient radio events have renewed interest in time-variable astrophysical phenomena. Many radio transient events are rare, requiring long observing times for reliable statistical study. The National Aeronautics and Space Administration/Jet Propulsion Laboratory's Deep Space Network (DSN) tracks spacecraft nearly continuously with 13 large-aperture, low system temperature radio antennas. During normal spacecraft operations, the DSN processes only a small fraction of the pre-detection bandwidth available from these antennas; any information in the remaining bandwidth, e.g., from an astronomical source in the same antenna beam as the spacecraft, is currently ignored. As a firmware modification to the standard DSN tracking receiver, we built a prototype receiver that could be used for astronomical transient surveys. Here, we demonstrate the receiver's utility through observations of bright pulses from the Crab pulsar and describe attributes of potential transient survey observations piggybacking on operational DSN tracks.

  11. High brightness--multiple beamlets source for patterned X-ray production

    DOE Patents [OSTI]

    Leung, Ka-Ngo (Hercules, CA); Ji, Qing (Albany, CA); Barletta, William A. (Oakland, CA); Jiang, Ximan (El Cerrito, CA); Ji, Lili (Albany, CA)

    2009-10-27

    Techniques for controllably directing beamlets to a target substrate are disclosed. The beamlets may be either positive ions or electrons. It has been shown that beamlets may be produced with a diameter of 1 .mu.m, with inter-aperture spacings of 12 .mu.m. An array of such beamlets, may be used for maskless lithography. By step-wise movement of the beamlets relative to the target substrate, individual devices may be directly e-beam written. Ion beams may be directly written as well. Due to the high brightness of the beamlets from extraction from a multicusp source, exposure times for lithographic exposure are thought to be minimized. Alternatively, the beamlets may be electrons striking a high Z material for X-ray production, thereafter collimated to provide patterned X-ray exposures such as those used in CAT scans. Such a device may be used for remote detection of explosives.

  12. Thermometric- and Acoustic-Based Beam Power Monitor for Ultra-Bright X-Rays

    SciTech Connect (OSTI)

    Bentsen, Gregory; /Rochester U. /SLAC

    2010-08-25

    A design for an average beam power monitor for ultra-bright X-ray sources is proposed that makes simultaneous use of calorimetry and radiation acoustics. Radiation incident on a solid target will induce heating and ultrasonic vibrations, both of which may be measured to give a fairly precise value of the beam power. The monitor is intended for measuring ultra-bright Free-Electron Laser (FEL) X-ray beams, for which traditional monitoring technologies such as photo-diodes or scintillators are unsuitable. The monitor consists of a Boron Carbide (B{sub 4}C) target designed to absorb most of the incident beam's energy. Resistance temperature detectors (RTD) and piezoelectric actuators are mounted on the outward faces of the target to measure the temperature changes and ultrasonic vibrations induced by the incident beam. The design was tested using an optical pulsed beam (780 nm, 120 and 360 Hz) from a Ti:sapphire oscillator at several energies between 0.8 and 2.6 mJ. The RTDs measured an increase in temperature of about 10 K over a period of several minutes. The piezoelectric sensors recorded ringing acoustic oscillations at 580 {+-} 40 kHz. Most importantly, the amplitude of the acoustic signals was observed to scale linearly with beam power up to 2 mJ of pulse energy. Above this pulse energy, the vibrational signals became nonlinear. Several causes for this nonlinearity are discussed, including amplifier saturation and piezoelectric saturation. Despite this nonlinearity, these measurements demonstrate the feasibility of such a beam power measurement device. The advantage of two distinct measurements (acoustic and thermometric) provides a useful method of calibration that is unavailable to current LCLS diagnostics tools.

  13. EM Shines with Five DOE Sustainability Awards

    Broader source: Energy.gov [DOE]

    WASHINGTON, D.C. – EM was selected for five DOE 2013 Sustainability Awards that recognize individual and group efforts at the Oak Ridge, Savannah River and Portsmouth sites.

  14. Virginia Tech Shines Light on Home Efficiency

    Broader source: Energy.gov [DOE]

    Collegiate teams from around the world came to Madrid this month to present their solar-powered houses in the first biennial Solar Decathlon Europe, a competition modeled after the Energy Department's Solar Decathlon in Washington, D.C.

  15. Special announcement: Building 9731 shines again

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

    part of the Secret City Festival. The one-hour tours will begin and end at the Y-12 New Hope Center. A shuttle bus will take people from the American Museum of Science and Energy...

  16. Collaboration Shines in Materials Project Success

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

    Ceder of Massachusetts Institute of Technology (MIT). "We can now use a century of progress in physics and computing to move beyond the Edisonian process." The Materials...

  17. Flying on Sun Shine: Sailing in Space

    SciTech Connect (OSTI)

    Alhorn, Dean

    2012-03-28

    On January 20th, 2011, NanoSail-D successfully deployed its sail in space. It was the first solar sail vehicle to orbit the earth and the second sail ever unfurled in space. The 10m2 sail, deployment mechanism and electronics were packed into a 3U CubeSat with a volume of about 3500cc. The NanoSail-D mission had two objectives: eject a nanosatellite from a minisatellite; deploy its sail from a highly compacted volume to validate large structure deployment and potential de-orbit technologies. NanoSail-D was jointly developed by NASA's Marshall Space Flight Center and Ames Research Center. The ManTech/NeXolve Corporation provided key sail design support. NanoSail-D is managed by Marshall and jointly sponsored by the Army Space and Missile Defense Command, the Space Test Program, the Von Braun Center for Science and Innovation and Dynetics Inc. The presentation will provide insights into sailcraft advances and potential missions enabled by this emerging in-space propulsion technology.

  18. Shining a spotlight on intact proteins

    SciTech Connect (OSTI)

    Pasa-Tolic, Ljiljana; Masselon, Christophe

    2014-05-01

    Cells react to cues from their environment using various mechanisms that include changes in metabolites, gene expression, protein binding partners, protein localization, and protein posttranslational modifications (PTMs), all of which contribute to altered cellular signatures that enable appropriate cellular responses. Given the seemingly infinite number of mechanisms available to affect protein function and modulate biological processes, the question arises as to how cells manage to interpret protein readouts to accomplish the appropriate cell-type specific response to a particular stimulus.

  19. ARM: G-band (183 GHz) Vapor Radiometer profiler: 15 microwave brightness temperatures from 170.0 to 183.3 GHz

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

    Maria Cadeddu

    2008-04-01

    G-band (183 GHz) Vapor Radiometer profiler: 15 microwave brightness temperatures from 170.0 to 183.3 GHz

  20. Transitions from order to disorder in multiple dark and multiple dark-bright soliton atomic clouds

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

    Wang, Wenlong; Kevrekidis, P. G.

    2015-03-09

    We have performed a systematic study quantifying the variation of solitary wave behavior from that of an ordered cloud resembling a “crystalline” configuration to that of a disordered state that can be characterized as a soliton “gas.” As our illustrative examples, we use both one-component, as well as two-component, one-dimensional atomic gases very close to zero temperature, where in the presence of repulsive interatomic interactions and of a parabolic trap, a cloud of dark (dark-bright) solitons can form in the one- (two-) component system. We corroborate our findings through three distinct types of approaches, namely a Gross-Pitaevskii type of partialmore » differential equation, particle-based ordinary differential equations describing the soliton dynamical system, and Monte Carlo simulations for the particle system. In addition, we define an “empirical” order parameter to characterize the order of the soliton lattices and study how this changes as a function of the strength of the “thermally” (i.e., kinetically) induced perturbations. As may be anticipated by the one-dimensional nature of our system, the transition from order to disorder is gradual without, apparently, a genuine phase transition ensuing in the intermediate regime.« less

  1. 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.

  2. Preparation of brightness stabilization agent for lignin containing pulp from biomass pyrolysis oils

    DOE Patents [OSTI]

    Agblevor, Foster A. (Blacksburg, VA); Besler-Guran, Serpil (Flemington, NJ)

    2001-01-01

    A process for producing a brightness stabilization mixture of water-soluble organic compounds from biomass pyrolysis oils comprising: a) size-reducing biomass material and pyrolyzing the size-reduced biomass material in a fluidized bed reactor; b) separating a char/ash component while maintaining char-pot temperatures to avoid condensation of pyrolysis vapors; c) condensing pyrolysis gases and vapors, and recovering pyrolysis oils by mixing the oils with acetone to obtain an oil-acetone mixture; d) evaporating acetone and recovering pyrolysis oils; e) extracting the pyrolysis oils with water to obtain a water extract; f) slurrying the water extract with carbon while stirring, and filtering the slurry to obtain a colorless filtrate; g) cooling the solution and stabilizing the solution against thermally-induced gelling and solidification by extraction with ethyl acetate to form an aqueous phase lower layer and an organic phase upper layer; h) discarding the upper organic layer and extracting the aqueous layer with ethyl acetate, and discarding the ethyl acetate fraction to obtain a brown-colored solution not susceptible to gelling or solidification upon heating; i) heating the solution to distill off water and other light components and concentrating a bottoms fraction comprising hydroxyacetaldehyde and other non-volatile components having high boiling points; and j) decolorizing the stabilized brown solution with activated carbon to obtain a colorless solution.

  3. BRIGHT HOT IMPACTS BY ERUPTED FRAGMENTS FALLING BACK ON THE SUN: UV REDSHIFTS IN STELLAR ACCRETION

    SciTech Connect (OSTI)

    Reale, F.; Orlando, S.; Testa, P.; Landi, E.; Schrijver, C. J.

    2014-12-10

    A solar eruption after a flare on 2011 June 7 produced EUV-bright impacts of fallbacks far from the eruption site, observed with the Solar Dynamics Observatory. These impacts can be taken as a template for the impact of stellar accretion flows. Broad redshifted UV lines have been commonly observed in young accreting stars. Here we study the emission from the impacts in the Atmospheric Imaging Assembly's UV channels and compare the inferred velocity distribution to stellar observations. We model the impacts with two-dimensional hydrodynamic simulations. We find that the localized UV 1600 emission and its timing with respect to the EUV emission can be explained by the impact of a cloud of fragments. The first impacts produce strong initial upflows. The following fragments are hit and shocked by these upflows. The UV emission comes mostly from the shocked front shell of the fragments while they are still falling, and is therefore redshifted when observed from above. The EUV emission instead continues from the hot surface layer that is fed by the impacts. Fragmented accretion can therefore explain broad redshifted UV lines (e.g., C IV 1550 ) to speeds around 400km s{sup 1} observed in accreting young stellar objects.

  4. Sparkling extreme-ultraviolet bright dots observed with Hi-C

    SciTech Connect (OSTI)

    Rgnier, S.; Alexander, C. E.; Walsh, R. W.; Winebarger, A. R.; Cirtain, J.; Golub, L.; Korreck, K. E.; Weber, M.; Mitchell, N.; Platt, S.; De Pontieu, B.; Title, A.; Kobayashi, K.; Kuzin, S.; DeForest, C. E.

    2014-04-01

    Observing the Sun at high time and spatial scales is a step toward understanding the finest and fundamental scales of heating events in the solar corona. The high-resolution coronal (Hi-C) instrument has provided the highest spatial and temporal resolution images of the solar corona in the EUV wavelength range to date. Hi-C observed an active region on 2012 July 11 that exhibits several interesting features in the EUV line at 193 . One of them is the existence of short, small brightenings 'sparkling' at the edge of the active region; we call these EUV bright dots (EBDs). Individual EBDs have a characteristic duration of 25 s with a characteristic length of 680 km. These brightenings are not fully resolved by the SDO/AIA instrument at the same wavelength; however, they can be identified with respect to the Hi-C location of the EBDs. In addition, EBDs are seen in other chromospheric/coronal channels of SDO/AIA, which suggests a temperature between 0.5 and 1.5 MK. Based on their frequency in the Hi-C time series, we define four different categories of EBDs: single peak, double peak, long duration, and bursty. Based on a potential field extrapolation from an SDO/HMI magnetogram, the EBDs appear at the footpoints of large-scale, trans-equatorial coronal loops. The Hi-C observations provide the first evidence of small-scale EUV heating events at the base of these coronal loops, which have a free magnetic energy of the order of 10{sup 26} erg.

  5. ACTIVITY-BRIGHTNESS CORRELATIONS FOR THE SUN AND SUN-LIKE STARS

    SciTech Connect (OSTI)

    Preminger, D. G.; Chapman, G. A.; Cookson, A. M.

    2011-10-01

    We analyze the effect of solar features on the variability of the solar irradiance in three different spectral ranges. Our study is based on two solar-cycles' worth of full-disk photometric images from the San Fernando Observatory, obtained with red, blue, and Ca II K-line filters. For each image we measure the photometric sum, {Sigma}, which is the relative contribution of solar features to the disk-integrated intensity of the image. The photometric sums in the red and blue continuum, {Sigma}{sub r} and {Sigma}{sub b}, exhibit similar temporal patterns: they are negatively correlated with solar activity, with strong short-term variability, and weak solar-cycle variability. However, the Ca II K-line photometric sum, {Sigma}{sub K}, is positively correlated with solar activity and has strong variations on solar-cycle timescales. We show that we can model the variability of the Sun's bolometric flux as a linear combination of {Sigma}{sub r} and {Sigma}{sub K}. We infer that, over solar-cycle timescales, the variability of the Sun's bolometric irradiance is directly correlated with spectral line variability, but inversely correlated with continuum variability. Our blue and red continuum filters are quite similar to the Stroemgren b and y filters used to measure stellar photometric variability. We conclude that active stars whose visible continuum brightness varies inversely with activity, as measured by the Ca HK index, are displaying a pattern that is similar to that of the Sun, i.e., radiative variability in the visible continuum that is spot-dominated.

  6. TURBULENT DIFFUSION IN THE PHOTOSPHERE AS DERIVED FROM PHOTOSPHERIC BRIGHT POINT MOTION

    SciTech Connect (OSTI)

    Abramenko, V. I.; Yurchyshyn, V.; Goode, P. R.; Carbone, V.; Lepreti, F.; Capparelli, V.; Vecchio, A.; Stein, R. F.

    2011-12-20

    On the basis of observations of solar granulation obtained with the New Solar Telescope of Big Bear Solar Observatory, we explored proper motion of bright points (BPs) in a quiet-sun area, a coronal hole, and an active region plage. We automatically detected and traced BPs and derived their mean-squared displacements as a function of time (starting from the appearance of each BP) for all available time intervals. In all three magnetic environments, we found the presence of a super-diffusion regime, which is the most pronounced inside the time interval of 10-300 s. Super-diffusion, measured via the spectral index, {gamma}, which is the slope of the mean-squared displacement spectrum, increases from the plage area ({gamma} = 1.48) to the quiet-sun area ({gamma} = 1.53) to the coronal hole ({gamma} = 1.67). We also found that the coefficient of turbulent diffusion changes in direct proportion to both temporal and spatial scales. For the minimum spatial scale (22 km) and minimum time scale (10 s), it is 22 and 19 km{sup 2} s{sup -1} for the coronal hole and the quiet-sun area, respectively, whereas for the plage area it is about 12 km{sup 2} s{sup -1} for the minimum time scale of 15 s. We applied our BP tracking code to three-dimensional MHD model data of solar convection and found the super-diffusion with {gamma} = 1.45. An expression for the turbulent diffusion coefficient as a function of scales and {gamma} is obtained.

  7. Untangling the contributions of image charge and laser profile for optimal photoemission of high-brightness electron beams

    SciTech Connect (OSTI)

    Portman, J.; Zhang, H.; Makino, K.; Ruan, C. Y.; Berz, M.; Duxbury, P. M.

    2014-11-07

    Using our model for the simulation of photoemission of high brightness electron beams, we investigate the virtual cathode physics and the limits to spatio-temporal and spectroscopic resolution originating from the image charge on the surface and from the profile of the exciting laser pulse. By contrasting the effect of varying surface properties (leading to expanding or pinned image charge), laser profiles (Gaussian, uniform, and elliptical), and aspect ratios (pancake- and cigar-like) under different extraction field strengths and numbers of generated electrons, we quantify the effect of these experimental parameters on macroscopic pulse properties such as emittance, brightness (4D and 6D), coherence length, and energy spread. Based on our results, we outline optimal conditions of pulse generation for ultrafast electron microscope systems that take into account constraints on the number of generated electrons and on the required time resolution.

  8. LARGE PECULIAR MOTION OF THE SOLAR SYSTEM FROM THE DIPOLE ANISOTROPY IN SKY BRIGHTNESS DUE TO DISTANT RADIO SOURCES

    SciTech Connect (OSTI)

    Singal, Ashok K.

    2011-12-15

    According to the cosmological principle, the universe should appear isotropic, without any preferred directions, to an observer whom we may consider to be fixed in the comoving coordinate system of the expanding universe. Such an observer is stationary with respect to the average distribution of the matter in the universe and the sky brightness at any frequency should appear uniform in all directions to such an observer. However, a peculiar motion of such an observer, due to a combined effect of Doppler boosting and aberration, will introduce a dipole anisotropy in the observed sky brightness; in reverse an observed dipole anisotropy in the sky brightness could be used to infer the peculiar velocity of the observer with respect to the average universe. We determine the peculiar velocity of the solar system relative to the frame of distant radio sources, by studying the anisotropy in the sky brightness from discrete radio sources, i.e., an integrated emission from discrete sources per unit solid angle. Our results give a direction of the velocity vector in agreement with the cosmic microwave background radiation (CMBR) value, but the magnitude ({approx}1600 {+-} 400 km s{sup -1}) is {approx}4 times the CMBR value (369 {+-} 1 km s{sup -1}) at a statistically significant ({approx}3{sigma}) level. A genuine difference between the two dipoles would imply an anisotropic universe, with the anisotropy changing with the epoch. This would violate the cosmological principle where the isotropy of the universe is assumed for all epochs, and on which the whole modern cosmology is based upon.

  9. A closer look at the fluctuations in the brightness of SN 2009IP during its late 2012 eruption

    SciTech Connect (OSTI)

    Martin, J. C. [Barber Observatory, University of Illinois Springfield, Springfield, IL 62704 (United States); Hambsch, F.-J. [Remote Observatory, Atacama Desert, Chile Vereniging Voor Sterrenkunde (VVS), Oude Bleken 12, B-2400 Mol (Belgium); Margutti, R.; Soderberg, A. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02318 (United States); Tan, T. G. [Perth Exoplanet Survey Telescope, Perth (Australia); Curtis, I., E-mail: jmart5@uis.edu [Adelaide (Australia)

    2015-01-01

    The supernova (SN) impostor SN 2009ip has re-brightened several times since its initial discovery in 2009 August. During its last outburst in late 2012 September, it reached a peak brightness of m{sub v} ?13.5 (M{sub v} brighter than ?18), causing some to speculate that it had undergone a terminal core-collapse SN. Relatively high-cadence multi-wavelength photometry of the post-peak decline revealed bumps in brightness infrequently observed in other SNe IIn. These bumps occurred synchronously in all ultraviolet (UV) and optical bands with amplitudes of 0.10.4 mag at intervals of 1030 days. Episodic continuum brightening and dimming in the UV and optical with these characteristics is not easily explained within the context of models that have been proposed for the late September 2012 outburst of SN 2009ip. We also present evidence that the post-peak fluctuations in brightness occur at regular intervals and raise more questions about their origin.

  10. On the Results of Measurements of the Direct Sun Radiation Flux by Actinometer and of Maximal Polarization of Sky Brightness in the Solar Almucantar

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

    On the Results of Measurements of the Direct Sun Radiation Flux by Actinometer and of Maximal Polarization of Sky Brightness in the Solar Almucantar A. Kh. Shukurov, K. A. Shukurov, and G. S. Golitsyn A. M. Obukhov Institute of Atmospheric Physics Russian Academy of Sciences Moscow, Russia Introduction It is well known that analysis of variations of sky brightness, B, in the visible points to a close correlation between the degree of maximal polarization, P M , in the solar almucantar (with

  11. HIA 2015 DOE Zero Energy Ready Home Case Study: BrightLeaf Homes, McCormick Avenue, Brookfield, IL

    Energy Savers [EERE]

    BrightLeaf Homes McCormick Avenue Brookfield, IL DOE ZERO ENERGY READY HOME(tm) The U.S. Department of Energy invites home builders across the country to meet the extraordinary levels of excellence and quality specified in DOE's Zero Energy Ready Home program (formerly known as Challenge Home). Every DOE Zero Energy Ready Home starts with ENERGY STAR Certified Homes Version 3.0 for an energy-efficient home built on a solid foundation of building science research. Advanced technologies are

  12. HerMES: A DEFICIT IN THE SURFACE BRIGHTNESS OF THE COSMIC INFRARED BACKGROUND DUE TO GALAXY CLUSTER GRAVITATIONAL LENSING

    SciTech Connect (OSTI)

    Zemcov, M.; Cooray, A.; Bock, J.; Dowell, C. D.; Nguyen, H. T.; Blain, A.; Bethermin, M.; Conley, A.; Glenn, J.; Conversi, L.; Farrah, D.; Oliver, S. J.; Roseboom, I. G.; Griffin, M.; Halpern, M.; Marsden, G.; Jullo, E.; Kneib, J.-P.; Richard, J.; and others

    2013-06-01

    We have observed four massive galaxy clusters with the SPIRE instrument on the Herschel Space Observatory and measure a deficit of surface brightness within their central region after removing detected sources. We simulate the effects of instrumental sensitivity and resolution, the source population, and the lensing effect of the clusters to estimate the shape and amplitude of the deficit. The amplitude of the central deficit is a strong function of the surface density and flux distribution of the background sources. We find that for the current best fitting faint end number counts, and excellent lensing models, the most likely amplitude of the central deficit is the full intensity of the cosmic infrared background (CIB). Our measurement leads to a lower limit to the integrated total intensity of the CIB of I{sub 250{mu}m}>0.69{sub -0.03}{sup +0.03}(stat.){sub -0.06}{sup +0.11}(sys.) MJy sr{sup -1}, with more CIB possible from both low-redshift sources and from sources within the target clusters. It should be possible to observe this effect in existing high angular resolution data at other wavelengths where the CIB is bright, which would allow tests of models of the faint source component of the CIB.

  13. A COMPLETE SAMPLE OF BRIGHT SWIFT LONG GAMMA-RAY BURSTS. I. SAMPLE PRESENTATION, LUMINOSITY FUNCTION AND EVOLUTION

    SciTech Connect (OSTI)

    Salvaterra, R. [INAF, IASF Milano, via E. Bassini 15, I-20133 Milano (Italy); Campana, S.; Vergani, S. D.; Covino, S.; D'Avanzo, P.; Fugazza, D.; Ghirlanda, G.; Ghisellini, G.; Melandri, A.; Sbarufatti, B.; Tagliaferri, G. [INAF, Osservatorio Astronomico di Brera, via E. Bianchi 46, I-23807 Merate (Saint Lucia) (Italy); Nava, L. [SISSA, via Bonomea 265, I-34136 Trieste (Italy); Flores, H. [Laboratoire GEPI, Observatoire de Paris, CNRS-UMR8111, Univ. Paris-Diderot 5 place Jules Janssen, 92195 Meudon (France); Piranomonte, S., E-mail: ruben@lambrate.inaf.it [INAF, Osservatorio Astronomico di Roma, via Frascati 33, 00040 Monte Porzio Catone, Rome (Italy)

    2012-04-10

    We present a carefully selected sub-sample of Swift long gamma-ray bursts (GRBs) that is complete in redshift. The sample is constructed by considering only bursts with favorable observing conditions for ground-based follow-up searches, which are bright in the 15-150 keV Swift/BAT band, i.e., with 1-s peak photon fluxes in excess to 2.6 photons s{sup -1} cm{sup -2}. The sample is composed of 58 bursts, 52 of them with redshift for a completeness level of 90%, while another two have a redshift constraint, reaching a completeness level of 95%. For only three bursts we have no constraint on the redshift. The high level of redshift completeness allows us for the first time to constrain the GRB luminosity function and its evolution with cosmic times in an unbiased way. We find that strong evolution in luminosity ({delta}{sub l} = 2.3 {+-} 0.6) or in density ({delta}{sub d} = 1.7 {+-} 0.5) is required in order to account for the observations. The derived redshift distributions in the two scenarios are consistent with each other, in spite of their different intrinsic redshift distributions. This calls for other indicators to distinguish among different evolution models. Complete samples are at the base of any population studies. In future works we will use this unique sample of Swift bright GRBs to study the properties of the population of long GRBs.

  14. 1998 - 06 | Jefferson Lab

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

    June 1998 Sun, 06281998 - 11:00pm FEL Shines Bright in Debut (Virginia Business Observer) Sat, 06201998 - 11:00pm Laser Breaks Record (Richmond Times-Dispatch) Thu, 06181998...

  15. NREL: Biomass Research - Chemical and Catalyst Science Capabilities

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

    Chemical and Catalyst Science Capabilities A photo of a man in a white lab coat and dark goggles looking at a microscope. A bright green light shines down from the microscope lens...

  16. A zero dead-time multi-particle time and position sensitive detector based on correlation between brightness and amplitude

    SciTech Connect (OSTI)

    Urbain, X. Bech, D.; Van Roy, J.-P.; Gloc, M.; Weber, S. J.

    2015-02-15

    A new multi-particle time and position sensitive detector using only a set of microchannel plates, a waveform digitizer, a phosphor screen, and a CMOS camera is described. The assignment of the timing information, as taken from the microchannel plates by fast digitizing, to the positions, as recorded by the camera, is based on the COrrelation between the BRightness of the phosphor screen spots, defined as their integrated intensity and the Amplitude of the electrical signals (COBRA). Tests performed by observing the dissociation of HeH, the fragmentation of H{sub 3} into two or three fragments, and the photo-double-ionization of Xenon atoms are presented, which illustrate the performances of the COBRA detection scheme.

  17. Measurable relationship between bright galaxies and their faint companions in WHL J085910.0+294957, a galaxy cluster at z = 0.30: vestiges of infallen groups?

    SciTech Connect (OSTI)

    Lee, Joon Hyeop; Lee, Hye-Ran; Kim, Minjin; Seon, Kwang-Il; Kim, Sang Chul; Yang, Soung-Chul; Ree, Chang Hee; Lee, Jong Chul; Jeong, Hyunjin; Ko, Jongwan; Choi, Changsu

    2014-08-20

    The properties of satellite galaxies are closely related to their host galaxies in galaxy groups. In cluster environments, on the other hand, the interaction between close neighbors is known to be limited. Our goal is to examine the relationships between host and satellite galaxies in the harsh environment of a galaxy cluster. To achieve this goal, we study a galaxy cluster WHL J085910.0+294957 at z = 0.30 using deep images obtained with CQUEAN CCD camera mounted on the 2.1 m Otto Struve Telescope. After member selection based on the scaling relations of photometric and structural parameters, we investigate the relationship between bright (M{sub i} ? 18) galaxies and their faint (18 < M{sub i} ? 15) companions. The weighted mean color of faint companion galaxies shows no significant dependence (<1? to bootstrap uncertainties) on cluster-centric distance and local luminosity density as well as the luminosity and concentration of an adjacent bright galaxy. However, the weighted mean color shows marginal dependence (?2.2?) on the color of an adjacent bright galaxy when the sample is limited to bright galaxies with at least two faint companions. By using a permutation test, we confirm that the correlation in color between bright galaxies and their faint companions in this cluster is statistically significant with a confidence level of 98.7%. The statistical significance increases if we additionally remove non-members using the Sloan Digital Sky Survey photometric redshift information (?2.6? and 99.3%). Our results suggest three possible scenarios: (1) vestiges of infallen groups, (2) dwarf capturing, and (3) tidal tearing of bright galaxies.

  18. Bright and dark singlet excitons via linear and two-photon spectroscopy in monolayer transition metal dichalcogenides

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

    Berkelbach, Timothy C.; Hybertsen, Mark S.; Reichmann, David R.

    2015-08-10

    We discuss the linear and two-photon spectroscopic selection rules for spin-singlet excitons in monolayer transition-metal dichalcogenides. Our microscopic formalism combines a fully k-dependent few-orbital band structure with a many-body Bethe-Salpeter equation treatment of the electron-hole interaction, using a model dielectric function. We show analytically and numerically that the single-particle, valley-dependent selection rules are preserved in the presence of excitonic effects. Furthermore, we definitively demonstrate that the bright (one-photon allowed) excitons have s-type azimuthal symmetry and that dark p-type excitons can be probed via two-photon spectroscopy. Thus, the screened Coulomb interaction in these materials substantially deviates from the 1/ε₀r form; thismore » breaks the “accidental” angular momentum degeneracy in the exciton spectrum, such that the 2p exciton has a lower energy than the 2s exciton by at least 50 meV. We compare our calculated two-photon absorption spectra to recent experimental measurements.« less

  19. High brightness microwave lamp

    DOE Patents [OSTI]

    Kirkpatrick, Douglas A.; Dolan, James T.; MacLennan, Donald A.; Turner, Brian P.; Simpson, James E.

    2003-09-09

    An electrodeless microwave discharge lamp includes a source of microwave energy, a microwave cavity, a structure configured to transmit the microwave energy from the source to the microwave cavity, a bulb disposed within the microwave cavity, the bulb including a discharge forming fill which emits light when excited by the microwave energy, and a reflector disposed within the microwave cavity, wherein the reflector defines a reflective cavity which encompasses the bulb within its volume and has an inside surface area which is sufficiently less than an inside surface area of the microwave cavity. A portion of the reflector may define a light emitting aperture which extends from a position closely spaced to the bulb to a light transmissive end of the microwave cavity. Preferably, at least a portion of the reflector is spaced from a wall of the microwave cavity. The lamp may be substantially sealed from environmental contamination. The cavity may include a dielectric material is a sufficient amount to require a reduction in the size of the cavity to support the desired resonant mode.

  20. Hubble space telescope observations of the afterglow, supernova, and host galaxy associated with the extremely bright GRB 130427A

    SciTech Connect (OSTI)

    Levan, A. J. [Department of Physics, University of Warwick, Coventry, CV4 7AL (United Kingdom); Tanvir, N. R.; Wiersema, K. [Department of Physics and Astronomy, University of Leicester, University Road, Leicester, LE1 7RH (United Kingdom); Fruchter, A. S.; Hounsell, R. A.; Graham, J. [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Hjorth, J.; Fynbo, J. P. U. [Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen (Denmark); Pian, E. [INAF, Trieste Astronomical Observatory, via G.B. Tiepolo 11, I-34143 Trieste (Italy); Mazzali, P. [Astrophysics Research Institute, Liverpool John Moores University, IC2 Liverpool Science Park 146 Brownlow Hill, Liverpool L3 5RF (United Kingdom); Perley, D. A. [Department of Astronomy, California Institute of Technology, MC 249-17, 1200 East California Blvd., Pasadena, CA 91125 (United States); Cano, Z. [Centre for Astrophysics and Cosmology, Science Institute, University of Iceland, Dunhagi 5, 107 Reykjavik (Iceland); Cenko, S. B. [Astrophysics Science Division, NASA Goddard Space Flight Center, Mail Code 661, Greenbelt, MD 20771 (United States); Kouveliotou, C. [Science and Technology Office, ZP12, NASA/Marshall Space Flight Center, Huntsville, AL 35812 (United States); Pe'er, A. [Department of Physics, University College Cork, Cork (Ireland); Misra, K., E-mail: a.j.levan@warwick.ac.uk [Aryabhatta Research Institute of Observational Sciences, Manora Peak, Nainital-263 002 (India)

    2014-09-10

    We present Hubble Space Telescope (HST) observations of the exceptionally bright and luminous Swift gamma-ray burst (GRB), GRB 130427A. At z = 0.34, this burst affords an excellent opportunity to study the supernova (SN) and host galaxy associated with an intrinsically extremely luminous burst (E {sub iso} > 10{sup 54} erg): more luminous than any previous GRB with a spectroscopically associated SN. We use the combination of the image quality, UV capability, and invariant point-spread function of HST to provide the best possible separation of the afterglow, host, and SN contributions to the observed light ?17 rest-frame days after the burst, utilizing a host subtraction spectrum obtained one year later. Advanced Camera for Surveys grism observations show that the associated SN, SN 2013cq, has an overall spectral shape and luminosity similar to SN 1998bw (with a photospheric velocity, v {sub ph} ? 15, 000 km s{sup 1}). The positions of the bluer features are better matched by the higher velocity SN 2010bh (v {sub ph} ? 30, 000 km s{sup 1}), but this SN is significantly fainter and fails to reproduce the overall spectral shape, perhaps indicative of velocity structure in the ejecta. We find that the burst originated ?4 kpc from the nucleus of a moderately star forming (1 M {sub ?} yr{sup 1}), possibly interacting disk galaxy. The absolute magnitude, physical size, and morphology of this galaxy, as well as the location of the GRB within it, are also strikingly similar to those of GRB 980425/SN 1998bw. The similarity of the SNe and environment from both the most luminous and least luminous GRBs suggests that broadly similar progenitor stars can create GRBs across six orders of magnitude in isotropic energy.

  1. The Brightest in Solar Homes to Shine in Public Tour

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

    styles and costs, from energy self-sufficient "off the grid" mountain homes to contemporary, ... Boulder Energy Conservation Center, 1702 Walnut St., for homes in Boulder. ...

  2. Desert Sunlight is Shining Example of How DOE Loan Guarantees...

    Energy Savers [EERE]

    550-MW photovoltaic solar project located in Riverside County, California. | Photo courtesy of NextEra Energy Resources. ... transform U.S. energy production in a way few could have ...

  3. National Laboratories Shine at World’s Largest Hydropower Event

    Broader source: Energy.gov [DOE]

    Members of the Energy Department's national laboratories—Oak Ridge National Laboratory, Argonne National Laboratory, and National Renewable Energy Laboratory—took home "Technical Paper of the Year"...

  4. ALS X-Rays Shine a New Light on Catalysis

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

    vice versa. At the ALS, researchers were able to directly observe redox processes in thin-film iron and cobalt perovskite oxide electrocatalysts using surface-sensitive, x-ray...

  5. 1366 Technologies Shines a Light on American Innovation

    Broader source: Energy.gov [DOE]

    An inside look at 1366 Technologies' innovative approach to solar manufacturing. Documenting how a $4 million grant from the Advanced Research Projects Agency-Energy (ARPA-E), through the Recovery Act is helping to make their ambitious goal of producing solar at the cost of coal a reality.

  6. Fewer lights, Brighter Shine in New Hampshire County

    Broader source: Energy.gov [DOE]

    The parking lot to the county courthouse and nursing home facility in Strafford County, New Hampshire needed new lights. And thanks to an Energy Efficiency and Conservation Block Grant from the Energy Department, Strafford got what it needed and more.

  7. ALS X-Rays Shine a New Light on Catalysis

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

    were able to directly observe redox processes in thin-film iron and cobalt perovskite oxide electrocatalysts using surface-sensitive, x-ray absorption spectroscopy while...

  8. Shining Light on Opacity (Journal Article) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Beiersdorfer, P ; Hoarty, D J Publication Date: 2014-08-04 OSTI Identifier: 1169846 Report Number(s): LLNL-JRNL-658613 DOE Contract Number: DE-AC52-07NA27344 Resource Type:...

  9. Los Alamos instrument to shine light on Mars habitability

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

    LANL ChemCam will help unravel mysteries of Red Planet's composition LOS ALAMOS, New Mexico, November 28, 2011-With the successful launch of the Mars Science Laboratory on...

  10. Making (and Saving) Money While the Sun Shines

    Broader source: Energy.gov [DOE]

    This presentation summarizes the information given by Tydings and Rosenberg during the DOE SunShot Grand Challenge: Summit and Technology Forum, June 13-14, 2012.

  11. Mass map shines light on dark matter | Argonne National Laboratory

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

    Louise Lerner at (630) 252-5526 or media@anl.gov. Connect Find an Argonne expert by subject. Follow Argonne on Twitter, Facebook, Google+ and LinkedIn. For inquiries on...

  12. Shining Energy-saving LEDs on Utah Starry Nights

    Broader source: Energy.gov [DOE]

    Utah is known for its magnificent night skies, where stargazers can catch a glimpse of constellations or a rogue shooting star. Now some rural towns have found a way to create even better views—and conserve energy.

  13. ALS X-Rays Shine a New Light on Catalysis

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

    most promising renewable energy technologies-fuel cells, water splitters, and artificial photosynthesis-rely upon catalysts to expedite the chemical reactions. Catalysts are...

  14. Shining Some Light on the World Cup's Efficiency Efforts | Department...

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

    fans now have more to cheer for than their favorite teams. The 2014 World Cup host, Brazil, has been working hard to make its new stadiums energy efficient. In May, Brazil...

  15. Argonne Researchers Shine "Light" on Origins of Wind Turbine...

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

    ... National Renewable Energy Laboratory's Gearbox Reliability Collaborative, October 29-31, ... Lubrication Engineering show Promise for Gearbox Reliability Statistics Show Bearing ...

  16. Application of a transverse phase-space measurement technique for high-brightness, H{sup {minus}} beams to the GTA H{sup {minus}} beam

    SciTech Connect (OSTI)

    Johnson, K.F.; Garcia, R.C.; Rusthoi, D.P.; Sander, O.R.; Sandoval, D.P.; Shinas, M.A.; Smith, M.; Yuan, V.W.; Connolly, R.C.

    1995-05-01

    The Ground Test Accelerator (GTA) had the objective Of Producing a high-brightness, high-current H-beam. The major components were a 35 keV injector, a Radio Frequency Quadrupole (RFQ), an intertank matching section (IMS), and a drift tube linac (DTL), consisting of 10 modules. A technique for measuring the transverse phase-space of high-power density beams has been developed and tested. This diagnostic has been applied to the GTA H-beam. Experimental results are compared to the slit and collector technique for transverse phase-space measurements and to simulations.

  17. The mystery of spectral breaks: Lyman continuum absorption by photon-photon pair production in the Fermi GeV spectra of bright blazars

    SciTech Connect (OSTI)

    Stern, Boris E. [Institute for Nuclear Research, Russian Academy of Sciences, Prospekt 60-letiya Oktyabrya 7a, Moscow 117312 (Russian Federation); Poutanen, Juri, E-mail: stern.boris@gmail.com, E-mail: juri.poutanen@utu.fi [Tuorla Observatory, University of Turku, Vislntie 20, FI-21500 Piikki (Finland)

    2014-10-10

    We re-analyze Fermi/LAT ?-ray spectra of bright blazars using the new Pass 7 version of the detector response files and detect breaks at ?5 GeV in the rest-frame spectra of 3C 454.3 and possibly also 4C +21.35, associated with the photon-photon pair production absorption by the He II Lyman continuum (LyC). We also detect significant breaks at ?20 GeV associated with hydrogen LyC in both the individual spectra and the stacked redshift-corrected spectrum of several bright blazars. The detected breaks in the stacked spectra univocally prove that they are associated with atomic ultraviolet emission features of the quasar broad-line region (BLR). The dominance of the absorption by the hydrogen Ly complex over He II, a small detected optical depth, and break energy consistent with head-on collisions with LyC photons imply that the ?-ray emission site is located within the BLR, but most of the BLR emission comes from a flat disk-like structure producing little opacity. Alternatively, the LyC emission region size might be larger than the BLR size measured from reverberation mapping, and/or the ?-ray emitting region is extended. These solutions would resolve the long-standing issue of how the multi-hundred GeV photons can escape from the emission zone without being absorbed by softer photons.

  18. Production, formation, and transport of high-brightness atomic hydrogen beam studies for the relativistic heavy ion collider polarized source upgrade

    SciTech Connect (OSTI)

    Kolmogorov, A. Stupishin, N.; Atoian, G.; Ritter, J.; Zelenski, A.; Davydenko, V.; Ivanov, A.; Novosibirsk State University, Novosibirsk

    2014-02-15

    The RHIC polarized H{sup ?} ion source had been successfully upgraded to higher intensity and polarization by using a very high brightness fast atomic beam source developed at BINP, Novosibirsk. In this source the proton beam is extracted by a four-grid multi-aperture ion optical system and neutralized in the H{sub 2} gas cell downstream from the grids. The proton beam is extracted from plasma emitter with a low transverse ion temperature of ?0.2 eV which is formed by plasma jet expansion from the arc plasma generator. The multi-hole grids are spherically shaped to produce geometrical beam focusing. Proton beam formation and transport of atomic beam were experimentally studied at test bench.

  19. CARMA SURVEY TOWARD INFRARED-BRIGHT NEARBY GALAXIES (STING). III. THE DEPENDENCE OF ATOMIC AND MOLECULAR GAS SURFACE DENSITIES ON GALAXY PROPERTIES

    SciTech Connect (OSTI)

    Wong, Tony; Xue, Rui; Bolatto, Alberto D.; Fisher, David B.; Vogel, Stuart N.; Leroy, Adam K.; Blitz, Leo; Rosolowsky, Erik; Bigiel, Frank; Ott, Jrgen; Rahman, Nurur; Walter, Fabian

    2013-11-01

    We investigate the correlation between CO and H I emission in 18 nearby galaxies from the CARMA Survey Toward IR-Bright Nearby Galaxies (STING) at sub-kpc and kpc scales. Our sample, spanning a wide range in stellar mass and metallicity, reveals evidence for a metallicity dependence of the H I column density measured in regions exhibiting CO emission. Such a dependence is predicted by the equilibrium model of McKee and Krumholz, which balances H{sub 2} formation and dissociation. The observed H I column density is often smaller than predicted by the model, an effect we attribute to unresolved clumping, although values close to the model prediction are also seen. We do not observe H I column densities much larger than predicted, as might be expected were there a diffuse H I component that did not contribute to H{sub 2} shielding. We also find that the H{sub 2} column density inferred from CO correlates strongly with the stellar surface density, suggesting that the local supply of molecular gas is tightly regulated by the stellar disk.

  20. Sensor Switch's Bright Manufacturing Future

    Broader source: Energy.gov [DOE]

    The switch helps with cost effective energy savings by turning off the lights when an occupancy sensor says the room is empty.

  1. Bright Future for CPV (Presentation)

    SciTech Connect (OSTI)

    Kurtz, S.

    2009-02-03

    Concentrator photovoltaics may play significant role in growth of solar electricity because of scalability. Need to take a bird?s eye view for the design and a worm?s eye view for diagnosis.

  2. COMET C/2011 W3 (LOVEJOY): ORBIT DETERMINATION, OUTBURSTS, DISINTEGRATION OF NUCLEUS, DUST-TAIL MORPHOLOGY, AND RELATIONSHIP TO NEW CLUSTER OF BRIGHT SUNGRAZERS

    SciTech Connect (OSTI)

    Sekanina, Zdenek; Chodas, Paul W. E-mail: Paul.W.Chodas@jpl.nasa.gov

    2012-10-01

    We describe the physical and orbital properties of C/2011 W3. After surviving perihelion passage, the comet was observed to undergo major physical changes. The permanent loss of the nuclear condensation and the formation of a narrow spine tail were observed first at Malargue, Argentina, on December 20 and then systematically at Siding Spring, Australia. The process of disintegration culminated with a terminal fragmentation event on December 17.6 UT. The postperihelion dust tail, observed for {approx}3 months, was the product of activity over <2 days. The nucleus' breakup and crumbling were probably caused by thermal stress due to the penetration of the intense heat pulse deep into the nucleus' interior after perihelion. The same mechanism may be responsible for cascading fragmentation of sungrazers at large heliocentric distances. The delayed response to the hostile environment in the solar corona is at odds with the rubble-pile model, since the residual mass of the nucleus, estimated at {approx}10{sup 12} g (equivalent to a sphere 150-200 m across) just before the terminal event, still possessed nontrivial cohesive strength. The high production rates of atomic oxygen, observed shortly after perihelion, are compatible with a subkilometer-sized nucleus. The spine tail-the product of the terminal fragmentation-was a synchronic feature, whose brightest part contained submillimeter-sized dust grains, released at velocities of up to 30 m s{sup -1}. The loss of the nuclear condensation prevented an accurate orbital-period determination by traditional techniques. Since the missing nucleus must have been located on the synchrone, whose orientation and sunward tip have been measured, we compute the astrometric positions of this missing nucleus as the coordinates of the points of intersection of the spine tail's axis with the lines of forced orbital-period variation, derived from the orbital solutions based on high-quality preperihelion astrometry from the ground. The resulting orbit gives 698 {+-} 2 yr for the osculating orbital period, showing that C/2011 W3 is the first member of the expected new, 21st-century cluster of bright Kreutz-system sungrazers, whose existence was predicted by these authors in 2007. From the spine tail's evolution, we determine that its measured tip, populated by dust particles 1-2 mm in diameter, receded antisunward from the computed position of the missing nucleus. The bizarre appearance of the comet's dust tail in images taken only hours after perihelion with the coronagraphs on board the SOHO and STEREO spacecraft is readily understood. The disconnection of the comet's head from the tail released before perihelion and an apparent activity attenuation near perihelion have a common cause-sublimation of all dust at heliocentric distances smaller than about 1.8 solar radii. The tail's brightness is strongly affected by forward scattering of sunlight by dust. From an initially broad range of particle sizes, the grains that were imaged the longest had a radiation-pressure parameter {beta} {approx_equal} 0.6, diagnostic of submicron-sized silicate grains and consistent with the existence of the dust-free zone around the Sun. The role and place of C/2011 W3 in the hierarchy of the Kreutz system and its genealogy via a 14th-century parent suggest that it is indirectly related to the celebrated sungrazer X/1106 C1, which, just as the first-generation parent of C/2011 W3, split from a common predecessor during the previous return to perihelion.

  3. Shining Stars of Solar: Meet Three SunShot Postdoctoral Award...

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

    ... The focus of my postdoctoral research was on integrated devices for solar fuels. Solar fuels devices are akin to photovoltaics (solar cells), except instead of light being ...

  4. Desert Sunlight is Shining Example of How DOE Loan Guarantees Helped Launch

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

    Utility-scale PV Solar Market | Department of Energy In 2011, LPO issued loan guarantees to the first 5 PV projects larger than 100 MW in the U.S. An additional 17 projects have been financed since without loan guarantees. In 2011, LPO issued loan guarantees to the first 5 PV projects larger than 100 MW in the U.S. An additional 17 projects have been financed since without loan guarantees. LPO issued a $1.46 billion loan guarantee to Desert Sunlight, a 550-MW photovoltaic solar project

  5. SHINES SunShot Project to Improve Energy Storage- Text Alt Version

    Broader source: Energy.gov [DOE]

    Caption:The SunShot Initiative just launched the Sustainable and Holistic Integration of Energy Storage and Solar PV Program.

  6. Shining LUX on isospin-violating dark matter beyond leading order...

    Office of Scientific and Technical Information (OSTI)

    Additional Journal Information: Journal Volume: 739; Journal Issue: C; Journal ID: ISSN 0370-2693 Publisher: Elsevier Sponsoring Org: USDOE Country of Publication: Netherlands ...

  7. Shining New Light on Protein Structure and Function thru Synchrotron Radiation Circular Dichroism (SRCD) Spectroscopy

    SciTech Connect (OSTI)

    Wallace,B.

    2005-01-01

    Circular dichroism (CD) spectroscopy has been employed for more than 50 years for the study of the structure and dynamics of proteins. It is now a workhorse of structural biology, finding applications in the determination of protein secondary structures, monitoring and deciphering protein folding, examining macromolecular interactions, and defining and quantitating protein-ligand binding. For the most part, CD studies have used laboratory-based instruments to measure electronic transitions in the far (190-250 nm), near ultraviolet (UV) (250-300 nm) and visible (> 400 nm) wavelength ranges, which have enabled studies of polypeptide backbones, aromatic amino acids and colored chromophores, respectively. Additional transitions exist at lower wavelengths in the vacuum ultraviolet (VUV) region (<190 nm); however, these transitions tend to be inaccessible to conventional CD instruments, due to the low intensity of their Xenon arc lamp light sources at wavelengths below190 nm. In 1980, the first synchrotron-based CD instruments were constructed, which took advantage of the high photon flux available from synchrotron light sources at these wavelengths. However, the technique of synchrotron radiation circular dichroism (SRCD) did not really take off until enabling studies had been done to show that additional data were obtainable for proteins in the VUV region, that these data were readily accessible with modern beamlines, and most importantly, that new applications of these data existed in structural molecular biology.

  8. Letting the Sun Shine on Solar Costs: An Empirical Investigation of Photovoltaic Cost Trends in California

    SciTech Connect (OSTI)

    Wiser, R.; Bolinger, M.; Cappers, P.; Margolis, R.

    2006-01-01

    This report provides a comprehensive analysis of grid-connected solar photovoltaic (PV) cost trends in California, which is by far the largest PV market in the United States. The findings of this work may help stakeholders to understand important trends in the California PV market, and policymakers to design more effective solar incentive programs--a particularly important objective given the recent announcement from the California Public Utilities Commission (CPUC) to establish an 11-year, $3.2 billion incentive program for customer-sited solar. The study statistically analyzes the installed cost of grid-connected PV systems funded by the state's two largest solar rebate programs, overseen by the California Energy Commission (CEC) [operating since 1998] and the CPUC [operating since 2001].

  9. Rain or Shine, Students Keep Their Race Cars Going - News Feature...

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

    always work," he said. One of his teams, Astler said, wanted to use a hinge so that the solar panel could be adjusted to more directly receive the sun. But the hinge added too...

  10. Formulation and Analysis of Compliant Grouted Waste Forms for SHINE Waste Streams

    SciTech Connect (OSTI)

    Ebert, William; Pereira, Candido; Heltemes, Thad A.; Youker, Amanda; Makarashvili, Vakhtang; Vandegrift, George F.

    2014-01-01

    Optional grouted waste forms were formulated for waste streams generated during the production of 99Mo to be compliant with low-level radioactive waste regulations. The amounts and dose rates of the various waste form materials that would be generated annually were estimated and used to determine the effects of various waste processing options, such as the of number irradiation cycles between uranium recovery operations, different combinations of waste streams, and removal of Pu, Cs, and Sr from waste streams for separate disposition (which is not evaluated in this report). These calculations indicate that Class C-compliant grouted waste forms can be produced for all waste streams. More frequent uranium recovery results in the generation of more chemical waste, but this is balanced by the fact that waste forms for those waste streams can accommodate higher waste loadings, such that similar amounts of grouted waste forms are required regardless of the recovery schedule. Similar amounts of grouted waste form are likewise needed for the individual and combined waste streams. Removing Pu, Cs, and Sr from waste streams lowers the waste form dose significantly at times beyond about 1 year after irradiation, which may benefit handling and transport. Although these calculations should be revised after experimentally optimizing the grout formulations and waste loadings, they provide initial guidance for process development.

  11. Spins and Heat in Nanoscale Electronic Systems (SHINES) | U.S...

    Office of Science (SC) Website

    Research Topics phonons, thermal conductivity, thermoelectric, spin dynamics, spintronics Materials Studied Materials: metal, oxide Interfaces: metaloxide Nanostructured ...

  12. EECBG Success Story: Shining Energy-Saving LEDs on Utah Starry...

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

    About 2,500 streetlights will be replaced and could save the town 20% to 50% on electricity bills. Learn more. Addthis Related Articles A worker installs energy-saving streetlights ...

  13. EECBG Success Story: Shining Energy-Saving LEDs on Utah Starry Nights

    Broader source: Energy.gov [DOE]

    Thanks to an Energy Efficiency and Conservation Block Grant (EECBG), Utah is replacing streetlights with efficient LEDs across 14 rural communities. About 2,500 streetlights will be replaced and could save the town 20% to 50% on electricity bills. Learn more.

  14. BrightPhase Energy | Open Energy Information

    Open Energy Info (EERE)

    efficiently. It is specifically designed for single-story commercial buildings that use electricity, heat, hot water, and lighting 3. The Photensity system achieves...

  15. Rectlinear cooling scheme for bright muon sources

    SciTech Connect (OSTI)

    Stratakis, Diktys

    2015-05-03

    A fast cooling technique is described that simultaneously reduces all six phase-space dimensions of a charged particle beam. In this process, cooling is accomplished by reducing the beam momentum through ionization energy loss in absorbers and replenishing the momentum loss only in the longitudinal direction rf cavities. In this work we review its main features and describe the main results.

  16. Solar Generation Has a Bright Future

    Broader source: Energy.gov [DOE]

    The amount of electricity the United States generates from solar power has started to grow rapidly and is projected to reach 18,000 megawatt hours per day in 2013.

  17. BrightSource Energy | Open Energy Information

    Open Energy Info (EERE)

    California-based company that develops, builds, owns, and operates large scale solar plants. These solar plants deliver solar energy to industrial and utility companies....

  18. BrightSource | Open Energy Information

    Open Energy Info (EERE)

    sunlight onto a pipe carrying synthetic oil. Since that time, LUZ II has advanced solar thermal technology by developing a new, proprietary design based on Luz Power Towers...

  19. The Future Looks Bright for Teraflop Computing

    SciTech Connect (OSTI)

    Farber, Rob

    2007-11-01

    Wouldnt it be great to have a teraflop of computing power sitting in your lab, desktop workstation, or remote instrument server? Talk about simplifying workflows, eliminating competition for HPC resources, and allowing more scientists and technicians to get more work done! Well, the computer industry is marketing that capability now in the form of high-end video cards and for a bargain price with more and better technology on the market horizon. As the industry evolves to become more oriented toward multi-core and multi-threaded hardware; video card manufacturers are attempting to transition from a niche to multi-purpose market. One of the products currently getting attention is the Nvidia Tesla family of products based on the Tesla GPGPU (general purpose graphics processing unit). This card contains 128 processor computing core engines advertised as having the ability to deliver an aggregate 518 billion single-precision floating operations per second (518 Gflop), which is being introduced at a $1499 MSRP price-point. Nvidia also offers other commodity graphics cards, such as the GeForce 8800, which appear on paper to have roughly the same performance for roughly half the price although with half the memory (768M vs the Tesla 1.5 GB). This highlights how the Tesla GPGPUs are essentially redesigned graphics cards (with no video capability, increased memory, and clock changes) that fit into PCI-Express slots in your motherboard. If you believe Nvidias claims, two Tesla cards will - for the right applications - turn your lab workstation into a teraflop capable supercomputer. Double-precision versions are projected for a late 2007 introduction with expected 2008 delivery. The Nvidia Tesla GPGPU is one step forward in the many-core revolution that is happening in the computer industry. Instead of making two or four processing cores available to the user, many-core processors offer tens or hundreds of processing cores. Many-core processors promise to provide very high performance-per-dollar and performance-per-watt for many computational workloads. Intel is working on their version of many-core processors but delivery dates appear to be several years in the future. Last year Intel made a large splash with their proof-of-concept teraflop 80-core chip, which they announced might be available sometime in 2011. Intel is also working on something similar to the Nvidia Tesla codename Larrabee which will perform in the teraflop range and has a release date of sometime around 2009 or 2010. Larrabee is supposed to have 16 24 cores and several nice features. Bottom line: A teraflop lab computer is feasible today as the programmable Nvidia GeForce 8 and Quadro family of graphics cards are available now, Tesla cards will be shipping, and exciting many-core architectures are on the horizon from a number of vendors. Definitely, the potential for parallel processing systems is huge, and GPGPUs certainly provide parallel processing, but are there enough applications out there to take them mainstream and make it more appealing to businesses other than just research firms? Only time will tell as more applications are developed to utilize this computational capability. Right now, programming is required. Recently Google purchased PeakStream, a firm that engaged in abstracting the task of running multiple threads to software with specific GPGPU applicability. However, Google is a visionary software company. Instrument vendors and much of the software industry are still in the early stages of the transition to multi-threaded many-core data processing. Applications that exploit the full potential of parallel processing systems, and GPGPUs in particular, really dont exist in todays market. The development of Matlab plug-ins is a very positive sign for the future of GPGPUs and is indicative of Nvidias sense of where the market is headed.

  20. Posters Comparisons of Brightness Temperature Measurements and...

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

    radiometric observations of atmospheric emission and attenuation at 20.6, 31.65, and 90 GHz: A comparison of measurements and theory. IEEE Trans. Antennas Prop. AP-38:1569...

  1. News Item

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

    Combinatorial Nanoscience Shines in Pure Colors Green/red purity vs. total intensity, observed in the various lanthanide ion combinations. The Molecular Foundry's Delia Milliron and colleagues have employed a powerful combinatorial approach to synthesize nanocrystals that glow in bright, pure colors when excited with near infrared light. - a process known as upconversion. These nanocrystals may allow for biological imaging with less harmful radiation than current methods, and can be more easily

  2. ARM - What Causes Global Warming?

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

    BeginnersWhat Causes Global Warming? 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 What Causes Global Warming? On earth we get energy from the sun's light. As you know, it gets hot outside if the sun is shining brightly on a summer day. The reason it warms up is because the earth is

  3. Bright three-band white light generated from CdSe/ZnSe quantum dot-assisted Sr{sub 3}SiO{sub 5}:Ce{sup 3+},Li{sup +}-based white light-emitting diode with high color rendering index

    SciTech Connect (OSTI)

    Jang, Ho Seong; Kwon, Byoung-Hwa; Jeon, Duk Young; Yang, Heesun

    2009-10-19

    In this study, bright three-band white light was generated from the CdSe/ZnSe quantum dot (QD)-assisted Sr{sub 3}SiO{sub 5}:Ce{sup 3+},Li{sup +}-based white light-emitting diode (WLED). The CdSe/ZnSe core/shell structure was confirmed by energy dispersive x-ray spectroscopy and x-ray photoelectron spectroscopy. The CdSe/ZnSe QDs showed high quantum efficiency (79%) and contributed to the high luminous efficiency ({eta}{sub L}) of the fabricated WLED. The WLED showed bright natural white with excellent color rendering property ({eta}{sub L}=26.8 lm/W, color temperature=6140 K, and color rendering index=85) and high stability against the increase in forward bias currents from 20 to 70 mA.

  4. TH-C-17A-04: Shining Light On the Implementation of Cherenkov Emission in Radiation Therapy

    SciTech Connect (OSTI)

    Zlateva, Y; Quitoriano, N

    2014-06-15

    Purpose: We hypothesize that Cherenkov emission (CE) by radiotherapy beams is correlated with radiation dose, CE detection can be maximized by a spectral shift towards the near-infrared (NIR) window of biological tissue, and in certain tissue types (ex. breast/oropharynx), it could prove superior to mega-voltage (MV) imaging. Therefore, we compare CE imaging to onboard MV imaging. Methods: Dose-CE correlation was investigated via simulation and experiment. A Monte Carlo (MC) CE simulator was designed using Geant4. Experimental phantoms include: water; tissuesimulating phantom composed of water, fat emulsion, and beef blood; plastic phantom with solid water insert. The optical spectrometry system consisted of a multi-mode optical fiber and diffraction-grating spectrometer incorporating a front/back-illuminated charge-coupled device (CCD). CdSe/ZnS quantum dots (QDs), emitting at (650±10) nm, were used to achieve NIR shift of the CE signal. CE and MV images were acquired with a complementary metal-oxide-semiconductor (CMOS) camera and an electronic portal imaging device (EPID), respectively. Results: MC and experimental studies indicate a strong linear correlation between radiation dose and CE (Pearson coefficient > 0.99). CE by an 18 MeV beam was effectively shifted towards the NIR in water and in a tissue-simulating phantom, exhibiting a 50% increase at 650 nm for QD depths of ∼3 mm. CE images exhibited relative contrast superior to EPID images by a factor of 30. Conclusion: Our work supports the potential for application of CE in radiotherapy online imaging for patient setup and treatment verification, since CE is intrinsic to the beam and non-ionizing, and QDs can be used to improve CE detectability, yielding image quality superior to MV imaging for the case of low density variability, low optical attenuation materials, such as breast or oropharyngeal cavities. Ongoing work involves microenvironment functionalization of QDs and application of multichannel spectrometry for simultaneous acquisition of dosimetric and tumor oxygenation signals. Funding received from the following organizations: Natural Sciences and Engineering Research Council of Canada, McGill University. YZ acknowledges partial support by the CREATE Medical Physics Research Training Network grant of the Natural Sciences and Engineering Research Council (Grant number: 432290)

  5. February 21, 2002

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

    8 An employee newsletter from the Y-12 National Security Complex February 21, 2002 Assembly's "stars" shine brightly during startup activities Y-12 recently received approval to begin disassembly operations for the W56 program, which was a significant accomplish- ment for the Y-12 National Security Complex. While the start-up of disassembly operations is big news for Y-12, there is, of course, more to this story than what makes headlines. There also is more to this story than the

  6. Growing Cutting-edge X-ray Optics

    ScienceCinema (OSTI)

    Ray Conley

    2013-07-17

    Ever imagined that an Xbox controller could help open a window into a world spanning just one billionth of a meter? Brookhaven Lab's Ray Conley grows cutting-edge optics called multilayer Laue lenses (MLL) one atomic layer at a time to focus high-energy x-rays to within a single nanometer. To achieve this focusing feat, Ray uses a massive, custom-built atomic deposition device, an array of computers, and a trusty Xbox controller. These lenses will be deployed at the Lab's National Synchrotron Light Source II, due to begin shining super-bright light on pressing scientific puzzles in 2015

  7. BrightPath Energy LLC | Open Energy Information

    Open Energy Info (EERE)

    York Zip: 10011 Sector: Renewable Energy, Services Product: New York-based provider of project advisory and management services in the renewable energy sector. References:...

  8. Coiled tubing technology advances to a bright future

    SciTech Connect (OSTI)

    Ghiselin, R.

    1998-07-01

    This supplement contains six short articles on coiled tubing, its advantages, performance, and materials. The articles are: Coiled Tubing--On the Brink of a New Millennium; CT Advances Promise a Broad, Dynamic Future; Performance, Safety and Cost Make the Case for HPCT; Fast and Accurate, CTD Helps Drillers Hit Their Targets; Composite Tubing Rapidly Proves Advantages in the Field; and People and Performance are Key to Coiled Tubing Growth.

  9. NREL Success Stories - SkyFuel Partnership Reflects Bright Future

    ScienceCinema (OSTI)

    Jorgensen, Gary; Gee, Randy

    2013-05-29

    NREL Scientists and SkyFuel share a story about how their partnership has resulted in a revolutionary concentrating solar power technology ReflecTech Mirror Film.

  10. Cree Sets New Benchmarks for LED Efficacy and Brightness

    Broader source: Energy.gov [DOE]

    Cree has successfully created a cool white LED prototype that delivers 107 lm/W at 350mA. This achievement builds on the Cree EZBright® LED chip platform, developed in part with prior funding support from DOE. Cree made the prototype LED under their DOE project focused on developing LED chips incorporating photonic crystal elements for improved light extraction and novel package technology for higher down-conversion efficiency compared to conventional LEDs. Based on a 1 millimeter-square chip, the new prototype LED produces white light with a CCT of 5500K and a CRI of 73. Integration of four of these prototype LEDs can produce luminous flux of more than 450 lumens.

  11. Brightness and Coherence of Synchrotron Radiation and FELs (Conference...

    Office of Scientific and Technical Information (OSTI)

    International Particle Accelerator Conference (IPAC 2013), 13-17 May 2013. Shanghai, China Research Org: SLAC National Accelerator Laboratory (SLAC) Sponsoring Org: US DOE...

  12. Supernovae of the Same Brightness, Cut From Vastly Different...

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

    that the progenitor system of a Type 1a supernova, called PTF 11kx, contains a red giant star. They also show that the system previously underwent at least one much...

  13. The Future is bright for Y-12 ? and diverse

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

    the history of the Oak Ridge Centers for Manufacturing Technology and the Manufac- turing Skills Campus concludes, it seems good to take a glance into Y-12"s potential future in...

  14. Ashland Electric Utility - Bright Way to Heat Water Rebate |...

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

    average 800 to 1,000) Summary The City of Ashland Conservation Division offers a solar water heating program to its residential electric customers who currently use an electric...

  15. Ashland Electric Utility - Bright Way to Heat Water Loan | Department...

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

    Type Loan Program Summary The City of Ashland Conservation Division offers a solar water heating program to residential electric customers who currently use an electric...

  16. Brightness and Coherence of Synchrotron Radiation and FELs (Conference...

    Office of Scientific and Technical Information (OSTI)

    Have feedback or suggestions for a way to improve these results? Save Share this Record Citation Formats MLA APA Chicago Bibtex Export Metadata Endnote Excel CSV XML Save to My ...

  17. A Bright Idea: New Efficiency Standards for Incandescent and...

    Energy Savers [EERE]

    high efficiency lighting technologies as well. We'll be covering those in future blogs. Addthis Related Articles New Lighting Facts Label: Takes the Guess Work Out of...

  18. Phosphorescent organic light emitting diodes with high efficiency and brightness

    DOE Patents [OSTI]

    Forrest, Stephen R; Zhang, Yifan

    2015-11-12

    An organic light emitting device including a) an anode; b) a cathode; and c) an emissive layer disposed between the anode and the cathode, the emissive layer comprising an organic host compound and a phosphorescent compound exhibiting a Stokes Shift overlap greater than 0.3 eV. The organic light emitting device may further include a hole transport layer disposed between the emissive layer and the anode; and an electron transport layer disposed between the emissive layer and the cathode. In some embodiments, the phosphorescent compound exhibits a phosphorescent lifetime of less than 10 .mu.s. In some embodiments, the concentration of the phosphorescent compound ranges from 0.5 wt. % to 10 wt. %.

  19. ITP Glass: A Clear Vision for a Bright Future

    Broader source: Energy.gov [DOE]

    This document presents perspectives on the glass industry's past, present and future, with special attention to competitive challenges now facing the industry and technological responses that will reinforce its continuing contribution...

  20. Bright Skies Ahead for Moapa | Department of Energy

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

    We spoke with Chairman William Anderson of the Moapa Band of Paiutes, which is breaking ground on the first industrial-scale solar photovoltaic (PV) project in Indian Country-a ...

  1. LOS ALAMOS, N.M., May 13, 2013-Today, Los Alamos National Laboratory

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

    partners, including Morgridge Institute for Research-SHINE Medical Technologies (MIR-SHINE), which proposes to use a particle accelerator to produce Mo-99 from a mildly...

  2. Domestic production of medical isotope Mo-99 moves a step closer

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

    partners, including Morgridge Institute for Research-SHINE Medical Technologies (MIR-SHINE), which proposes to use a particle accelerator to produce Mo-99 from a mildly...

  3. Property:Incentive/Cont2Addr | Open Energy Information

    Open Energy Info (EERE)

    Program (Texas) + 400 All Star Road + AEP SWEPCO - SCORE Program (Texas) + 400 All Star Road + AEP Texas - Commercial and Industrial Energy Efficiency Rebate Program (Texas)...

  4. "PBS NEWSHOUR" covers new technique that may make solar panel...

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

    NPR: Particles From The Edge Of Space Shine A Light On Fukushima NPR: Particles From The Edge Of Space Shine A Light On Fukushima August, 30 2015 - It's one of the greatest, and ...

  5. Scientific American: "Tall Trees Sucked Dry by Global Warming...

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

    NPR: Particles From The Edge Of Space Shine A Light On Fukushima NPR: Particles From The Edge Of Space Shine A Light On Fukushima August, 30 2015 - It's one of the greatest, and ...

  6. Fast Company: Satellite imaging startup takes step forward

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

    NPR: Particles From The Edge Of Space Shine A Light On Fukushima NPR: Particles From The Edge Of Space Shine A Light On Fukushima August, 30 2015 - It's one of the greatest, and ...

  7. R&D Magazine: Windows into Solar Power Sources with Quantum Dots

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

    NPR: Particles From The Edge Of Space Shine A Light On Fukushima NPR: Particles From The Edge Of Space Shine A Light On Fukushima August, 30 2015 - It's one of the greatest, and ...

  8. Fast Company covers "Just Your Typical New Mexico Image Recognition...

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

    ... NPR: Particles From The Edge Of Space Shine A Light On Fukushima NPR: Particles From The Edge Of Space Shine A Light On Fukushima August, 30 2015 - It's one of the greatest, and ...

  9. The New York Times covers "National Labs Race to Stop Iran"

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

    NPR: Particles From The Edge Of Space Shine A Light On Fukushima NPR: Particles From The Edge Of Space Shine A Light On Fukushima August, 30 2015 - It's one of the greatest, and ...

  10. The Guardian: "Landscapes we don't want to lose: New Mexico's...

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

    NPR: Particles From The Edge Of Space Shine A Light On Fukushima NPR: Particles From The Edge Of Space Shine A Light On Fukushima August, 30 2015 - It's one of the greatest, and ...

  11. PROJECT PROFILE: Fraunhofer USA, Center for Sustainable Energy Systems CSE

    Energy Savers [EERE]

    (SHINES) | Department of Energy Fraunhofer USA, Center for Sustainable Energy Systems CSE (SHINES) PROJECT PROFILE: Fraunhofer USA, Center for Sustainable Energy Systems CSE (SHINES) Title: SunDial - An Integrated SHINES System to Enable High-Penetration Feeder-Level Photovoltaics Fraunhofer logo.png Funding Opportunity: Sustainable and Holistic Integration of Energy Storage and Solar PV SunShot Subprogram: Systems Integration Location: Boston, Massachusetts Partners: National Grid, EnerNOC

  12. 'DisrupTech' event to highlight bright ideas from Los Alamos

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

    corroding pipes, creating a safer environment for employees. The minimally intrusive assessment method can be useful in a variety of industrial situations and will increase...

  13. DOE ZERH Case Study: BrightLeaf Homes, McCormick Avenue, Brookfield, IL

    SciTech Connect (OSTI)

    none,

    2015-09-01

    Case study of a DOE 2015 Housing Innovation Award winning production home in the cold climate that got a HERS 38 without PV, with staggered 2x4 studs every 8”on a 2x6 plate with dense-packed R-25 cellulose, basement with 3” XPS exterior and 2: XPS under slab; a vented attic with spray foam top plates and R-60 blown cellulose; 96% AFUE furnace, 14 SEER AC, plus fresh air intake.

  14. Graduating to a Bright Tomorrow: Solar Ready Vets Class Graduates from Hill AFB

    Broader source: Energy.gov [DOE]

    Deputy Secretary of Energy Liz Sherwood-Randall visited Hill Air Force Base in Utah recently to celebrate with 18 graduates of EERE's Solar Ready Vets program. This program helps transition military veterans into civilian careers in the solar industry, with promising results to date.

  15. GE Bright Mind: Dr. John Schenck and the forefront of MRI research...

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

    systems," he said. "I wanted to learn more about the brain and how it worked with the body." Dr. Schenck started a very popular electrical engineering graduate course exploring...

  16. Bright x-ray sources from laser irradiation of foams with high...

    Office of Scientific and Technical Information (OSTI)

    Country of Publication: United States Language: English Subject: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CONCENTRATION RATIO; ELECTRON TEMPERATURE; FOAMS; IRRADIATION; LASER ...

  17. The number counts and infrared backgrounds from infrared-bright galaxies

    SciTech Connect (OSTI)

    Hacking, P.B.; Soifer, B.T. California Institute of Technology, Pasadena )

    1991-02-01

    Extragalactic number counts and diffuse backgrounds at 25, 60, and 100 microns are predicted using new luminosity functions and improved spectral-energy distribution density functions derived from IRAS observations of nearby galaxies. Galaxies at redshifts z less than 3 that are like those in the local universe should produce a minimum diffuse background of 0.0085, 0.038, and 0.13 MJy/sr at 25, 60, and 100 microns, respectively. Models with significant luminosity evolution predict backgrounds about a factor of 4 greater than this minimum. 22 refs.

  18. AN EMERGING CLASS OF BRIGHT, FAST-EVOLVING SUPERNOVAE WITH LOW...

    Office of Scientific and Technical Information (OSTI)

    Author Affiliations Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States) Department of Particle Physics and Astrophysics, Faculty...

  19. Design, conditioning, and performance of a high voltage, high brightness dc photoelectron gun with variable gap

    SciTech Connect (OSTI)

    Maxson, Jared; Bazarov, Ivan; Dunham, Bruce; Dobbins, John; Liu, Xianghong; Smolenski, Karl

    2014-09-15

    A new high voltage photoemission gun has been constructed at Cornell University which features a segmented insulator and a movable anode, allowing the cathode-anode gap to be adjusted. In this work, we describe the gun's overall mechanical and high voltage design, the surface preparation of components, as well as the clean construction methods. We present high voltage conditioning data using a 50 mm cathode-anode gap, in which the conditioning voltage exceeds 500 kV, as well as at smaller gaps. Finally, we present simulated emittance results obtained from a genetic optimization scheme using voltage values based on the conditioning data. These results indicate that for charges up to 100 pC, a 30 mm gap at 400 kV has equal or smaller 100% emittance than a 50 mm gap at 450 kV, and also a smaller core emittance, when placed as the source for the Cornell energy recovery linac photoinjector with bunch length constrained to be <3 ps rms. For 100 pC up to 0.5 nC charges, the 50 mm gap has larger core emittance than the 30 mm gap, but conversely smaller 100% emittance.

  20. The lidar dark band: An oddity of the radar bright band analogy

    SciTech Connect (OSTI)

    Sassen, K.

    1996-04-01

    Although much has sbeen learned from independent radar and lidar studies of atmospheric precipitations, occasionally supported by aircraft profiling, what has been lacking is combined optical, microwave, and insitu observations of the melting layer. Fortunately, the rainshowers on April 21, 1994, during the Remote Cloud Sensing intensive obervations Period (RCSIOP) at the Southern Great Plains Cloud and radiation Testbed (CART) site provided an opportunity for coordinated dual-wavelength University of Utah Polarization Diversity Lidar, University of Massachusetts Cloud Profiling Radar System Doppler Radar, and the University of North Dakota Citation aircraft measurements.

  1. Veeco Develops a Tool to Reduce Epitaxy Costs and Increase LED Brightness

    Broader source: Energy.gov [DOE]

    With the help of DOE funding, Veeco is working on reducing epitaxy costs and increasing LED efficiency by developing a physical vapor deposition (PVD) tool for depositing aluminum nitride buffer layers on LED substrates. PVD, also known as "sputtering," is an alternative to metal-organic chemical vapor deposition (MOCVD). PVD is a purely physical process that involves plasma sputter bombardment rather than a chemical reaction at the surface to be coated, as in MOCVD.

  2. High-Throughput, High-Precision Hot Testing Tool for High-Brightness...

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

    tool will have an impact on the HBLED manufacturing process such that 2 quads of energy savings could be achieved at full market penetration. Nationwide, lighting buildings costs ...

  3. Shocks and star formation in Stephan's Quintet. I. Gemini spectroscopy of H?-bright knots

    SciTech Connect (OSTI)

    Konstantopoulos, I. S.; Cluver, M. E.; Appleton, P. N.; Guillard, P.; Trancho, G.; Bastian, N.; Charlton, J. C.; Fedotov, K.; Gallagher, S. C.; Smith, L. J.; Struck, C. J.

    2014-03-20

    We present a Gemini-GMOS spectroscopic study of Hubble Space Telescope (HST)-selected H?-emitting regions in Stephan's Quintet (HCG 92), a nearby compact galaxy group, with the aim of disentangling the processes of shock-induced heating and star formation in its intra-group medium. The ?40 sources are distributed across the system, but most densely concentrated in the ?kiloparsec-long shock region. Their spectra neatly divide them into narrow- and broad-line emitters, and we decompose the latter into three or more emission peaks corresponding to spatial elements discernible in HST imaging. The emission-line ratios of the two populations of H?-emitters confirm their nature as H II regions (90% of the sample) or molecular gas heated by a shock front propagating at ?300 km s{sup 1}. Their redshift distribution reveals interesting three-dimensional structure with respect to gas-phase baryons, with no H II regions associated with shocked gas, no shocked regions in the intruder galaxy NGC 7318B, and a sharp boundary between shocks and star formation. We conclude that star formation is inhibited substantially, if not entirely, in the shock region. Attributing those H II regions projected against the shock to the intruder, we find a lopsided distribution of star formation in this galaxy, reminiscent of pileup regions in models of interacting galaxies. The H? luminosities imply mass outputs, star formation rates, and efficiencies similar to nearby star-forming regions. Two large knots are an exception to this, being comparable in stellar output to the prolific 30 Doradus region. We also examine Stephan's Quintet in the context of compact galaxy group evolution, as a paradigm for intermittent star formation histories in the presence of a rich, X-ray-emitting intra-group medium. All spectra are provided as supplemental materials.

  4. High-intensity, high-brightness polarized and unpolarized beam production in charge-exchange collisions

    SciTech Connect (OSTI)

    Zelenski, A.; Ritter, J.; Zubets, V.; Steski, D.; Atoian, G.; Davydenko, V.; Ivanov, A.; Kolmogorov, A.

    2011-03-28

    Basic limitations on the high-intensity H{sup -} ion beam production were experimentally studied in charge-exchange collisions of the neutral atomic hydrogen beam in the Na-vapour jet ionizer cell. These studies are the part of the polarized source upgrade (to 10 mA peak current and 85% polarization) project for RHIC. In the source the atomic hydrogen beam of a 5-10 keV energy and total (equivalent) current up to 5 A is produced by neutralization of proton beam in pulsed hydrogen gas target. Formation of the proton beam (from the surface of the plasma emitter with a low transverse ion temperature {approx}0.2 eV) is produced by four-electrode spherical multi-aperture ion-optical system with geometrical focusing. The hydrogen atomic beam intensity up to 1.0 A/cm{sup 2} (equivalent) was obtained in the Na-jet ionizer aperture of a 2.0 cm diameter. At the first stage of the experiment H-beam with 36 mA current, 5 keV energy and {approx}1.0 cm {center_dot} mrad normalized emittance was obtained using the flat grids and magnetic focusing.

  5. The unexpectedly bright comet C/2012 F6 (Lemmon) unveiled at near-infrared wavelengths

    SciTech Connect (OSTI)

    Paganini, Lucas; DiSanti, Michael A.; Mumma, Michael J.; Villanueva, Geronimo L.; Bonev, Boncho P.; Keane, Jacqueline V.; Meech, Karen J.; Gibb, Erika L.; Boehnhardt, Hermann

    2014-01-01

    We acquired near-infrared spectra of the Oort cloud comet C/2012 F6 (Lemmon) at three different heliocentric distances (R {sub h}) during the comet's 2013 perihelion passage, providing a comprehensive measure of the outgassing behavior of parent volatiles and cosmogonic indicators. Our observations were performed pre-perihelion at R {sub h} = 1.2 AU with CRIRES (on 2013 February 2 and 4), and post-perihelion at R {sub h} = 0.75 AU with CSHELL (on March 31 and April 1) and R {sub h} = 1.74 AU with NIRSPEC (on June 20). We detected 10 volatile species (H{sub 2}O, OH* prompt emission, C{sub 2}H{sub 6}, CH{sub 3}OH, H{sub 2}CO, HCN, CO, CH{sub 4}, NH{sub 3}, and NH{sub 2}), and obtained upper limits for two others (C{sub 2}H{sub 2} and HDO). One-dimensional spatial profiles displayed different distributions for some volatiles, confirming either the existence of polar and apolar ices, or of chemically distinct active vents in the nucleus. The ortho-para ratio for water was 3.31 0.33 (weighted mean of CRIRES and NIRSPEC results), implying a spin temperature >37 K at the 95% confidence limit. Our (3?) upper limit for HDO corresponds to D/H < 2.45 10{sup 3} (i.e., <16 Vienna Standard Mean Ocean Water, VSMOW). At R {sub h} = 1.2 AU (CRIRES), the production rate for water was Q(H{sub 2}O) = 1.9 0.1 10{sup 29} s{sup 1} and its rotational temperature was T {sub rot} ? 69 K. At R {sub h} = 0.75 AU (CSHELL), we measured Q(H{sub 2}O) = 4.6 0.6 10{sup 29} s{sup 1} and T {sub rot} = 80 K on March 31, and 6.6 0.9 10{sup 29} s{sup 1} and T {sub rot} = 100 K on April 1. At R {sub h} = 1.74 AU (NIRSPEC), we obtained Q(H{sub 2}O) = 1.1 0.1 10{sup 29} s{sup 1} and T {sub rot} ? 50 K. The measured volatile abundance ratios classify comet C/2012 F6 as rather depleted in C{sub 2}H{sub 6} and CH{sub 3}OH, while HCN, CH{sub 4}, and CO displayed abundances close to their median values found among comets. H{sub 2}CO was the only volatile showing a relative enhancement. The relative paucity of C{sub 2}H{sub 6} and CH{sub 3}OH (with respect to H{sub 2}O) suggests formation within warm regions of the nebula. However, the normal abundance of HCN and hypervolatiles CH{sub 4} and CO, and the enhancement of H{sub 2}CO, may indicate a possible heterogeneous nucleus of comet C/2012 F6 (Lemmon), possibly as a result of radial mixing within the protoplanetary disk.

  6. Final Report: Advanced Concepts for Ultrahigh Brightness and Low Temperature Beams Progress Report

    SciTech Connect (OSTI)

    Wurtele, Jonathan S.; Fajans, Joel

    2015-06-01

    This grant supported research on techniques to manipulate and combine positrons and antiprotons to synthesize, and to probe, antihydrogen. The majority of the research was conducted as part of the ALPHA Collaboration at CERN. Using ideas and techniques from accelerator physics, we proposed a new method for measuring the the gravitational attraction of antihydrogen to the Earth's field. ALPHA reported the first precision charge measurement on antihydrogen and a crude bound on its gravitational dynamics in the Earth's field. We proposed using a stochastic acceleration method to measure any putative charge of antihydrogen and built numerical models of the mixing of antiprotons and positrons. Further research included proposing the radiator-first concept for operating an X-ray free electron laser driven by a high repetition rate bunch source and studying scattering in passive foil-based ion focusing systems.

  7. High efficiency and brightness fluorescent organic light emitting diode by triplet-triplet fusion

    DOE Patents [OSTI]

    Forrest, Stephen; Zhang, Yifan

    2015-02-10

    A first device is provided. The first device further comprises an organic light emitting device. The organic light emitting device further comprises an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer may include an organic host compound and at least one organic emitting compound capable of fluorescent emission at room temperature. Various configurations are described for providing a range of current densities in which T-T fusion dominates over S-T annihilation, leading to very high efficiency fluorescent OLEDs.

  8. High-Brightness Milestone Report to DOE OFES, FY05 Q4

    SciTech Connect (OSTI)

    Molvik, A W

    2005-09-14

    We have met this milestone by making measurements of electrons, as described in our FY05 Q3 Milestone Report, and simulating the same conditions with the WARP/POSINST code. This code has been developed over the last three years, by adding self-consistent electron and gas populations to the beam-dynamics particle-in-cell code, WARP, and combining it with the electron-cloud code from LBNL, POSINST. This code development effort has advanced to the point where almost all elements of a comprehensive ''roadmap'' are available. The WARP simulations shown here replicate experimental results, with agreement ranging from semi-quantitative agreement to close quantitative agreement.

  9. Bright high-repetition-rate source of narrowband extreme-ultraviolet...

    Office of Scientific and Technical Information (OSTI)

    ... Photonics 8, 437-441 (2014). 31. Ditmire, T., Crane, J. K., Nguyen, H., DaSilva, L. B. & Perry, M. D. Energy-yield and conversion efficiency measurements of high-order harmonic ...

  10. Physical nature of the [S II]-bright shell nebulae N70 and N185

    SciTech Connect (OSTI)

    Zhang, Ning-Xiao; Jiang, Bing; Chen, Yang; Chu, You-Hua; Gruendl, R. A.; Williams, R. M.

    2014-09-01

    N70 and N185 are two large (?100 pc in diameter) shell nebulae in the Large Magellanic Cloud (LMC). Their high [S II]/H? ratios rival those of supernova remnants (SNRs), but they are not confirmed as SNRs. To study their physical nature, we have obtained XMM-Newton X-ray observations and high-dispersion long-slit echelle spectroscopic observations of these two nebulae. The X-ray spectra of both nebulae can be well interpreted with an optically thin thermal (?0.2 keV) plasma with the average LMC abundance in a collisional ionization equilibrium. N70 encompasses the OB association LH114. Although N70 has a modest expansion velocity and essentially thermal radio emission, its diffuse X-ray luminosity (?6.1 10{sup 35} erg s{sup 1}) is higher than that from a quiescent superbubble with N70's density, size, and expansion velocity; thus, N70 is most likely a superbubble that is recently energized by an interior SNR. N185 does not contain any known OB association, and its X-ray luminosity is an order of magnitude lower than expected if it is a quiescent superbubble. N185 has nonthermal radio emission and has high-velocity material expanding at nearly 200 km s{sup 1}, similar to many known SNRs in the LMC. Its X-ray luminosity (?1.9 10{sup 35} erg s{sup 1}) is also consistent with that of an evolved SNR. We therefore suggest that N185 is energized by a recent supernova.

  11. A I K E N

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

    SHINE Signs License Agreement for SRNL Innovation Proven, advanced process supports high-efficiency domestic medical isotope production MONONA, WI. and AIKEN, S.C. (October 13, 2015) - Savannah River Nuclear Solutions, LLC (SRNS), the management and operating contractor for the U.S. Department of Energy's Savannah River National Laboratory (SRNL), has granted SHINE Medical Technologies, Inc. (SHINE) an exclusive license on SRNL's patented hydrogen isotope separation process for use in medical

  12. High-brightness picosecond ion beam source based on BNL Terawatt CO2 laser: Proof-of-principle experiments

    SciTech Connect (OSTI)

    Shkolnikov, Peter

    2012-10-04

    Under the continuing DOE support, we have: o assembled the basic experiment setup and then continued expanding it to include diverse diagnostics and to accommodate gas jet targets in addition to metal foils; o conducted an extensive study of our novel laser, significantly enhanced laser beam diagnostics, and improved relevant laser parameters; o turned our experiments into a truly international endeavor with active collaboration of close to 20 researchers in US, UK, and Germany; o conducted the first ever experiments with proton and ion acceleration by lasers interacting with overcritical plasma of gas jets; o for the first time directly observed radiation pressure acceleration of protons, including quasi-monoenergetic spectra promising for future applications; o for the first time directly observed quasi-stable, bubble-like plasma structures that likely evolved from relativistic laser-plasma solitons (post-solitons). Thus, we have confirmed a strong potential of a picosecond TW CO2 laser as a research tool in laser-plasma science and as a promising vehicle for future applications of laser ion acceleration. This has led to apparent increase of the interest in mid-IR laser ion acceleration. In particular, another major research group began extensive proton acceleration experiments with their own CO2 laser at UCLA. As a result, the mechanisms responsible for laser proton acceleration in gas jets have become somewhat clearer. It is also important to note that modest DOE funding played the role of a seed support ensuring the formation of a multinational research team, whose members contributed its time and equipment with value well in excess of that seed amount.

  13. Blast-furnace ironmaking -- Existing capital and continued improvements are a winning formula for a bright future

    SciTech Connect (OSTI)

    Oshnock, T.W.; Colinear, J.A.

    1995-12-01

    Throughout the years the blast-furnace process has been improved upon significantly. Increases to the hot-blast temperature, improvements to the physical, chemical, and metallurgical properties of coke and burden materials, the use of more fuel injectants, and improvements to the design of the furnace facilities have led to significant decreases in furnace coke rate, increases in productivity, and increases in furnace campaign life. As a result, many of the alternative cokeless reduction processes have not replaced blast-furnace hot-metal production in North America. In the future, these continued blast-furnace improvements will potentially result in coke rates decreasing to 400 pounds per net ton of hot metal (lb/NTHM) as more pulverized coal is injected. These improvements, coupled with the fact that existing blast furnaces and coke plants can be refurbished for approximately $110 per annual ton of hot metal [$100 per annual net ton of hot metal (NTHM)], will result in extending the life of the North American blast furnaces well into the twenty-first century.

  14. Relative brightness of the O{sup +}({sup 2} D-{sup 2} P) doublets in low-energy aurorae

    SciTech Connect (OSTI)

    Whiter, D. K. [Finnish Meteorological Institute, Erik Palmnin Aukio 1, FI-00560 Helsinki (Finland); Lanchester, B. S.; Gustavsson, B.; Jallo, N. I. B.; Jokiaho, O.; Dahlgren, H. [School of Physics and Astronomy, University of Southampton, SO17 1BJ (United Kingdom); Ivchenko, N., E-mail: daniel.whiter@fmi.fi [Royal Institute of Technology (KTH), Teknikringen 31, SE-100 44 Stockholm (Sweden)

    2014-12-10

    The ratio of the emission line doublets from O{sup +} at 732.0 nm (I {sub 732}) and 733.0 nm (I {sub 733}) has been measured in auroral conditions of low-energy electron precipitation from Svalbard (78.20 north, 15.83 east). Accurate determination of R = I {sub 732}/I {sub 733} provides a powerful method for separating the density of the O{sup +} {sup 2} P{sub 1} {sub /2,3} {sub /2}{sup o} levels in modeling of the emissions from the doublets. A total of 383 spectra were included from the winter of 2003-2004. The value obtained is R = I {sub 732}/I {sub 733} = 1.38 0.02, which is higher than theoretical values for thermal equilibrium in fully ionized plasma, but is lower than reported measurements by other authors in similar auroral conditions. The continuity equations for the densities of the two levels are solved for different conditions, in order to estimate the possible variations of R. The results suggest that the production of ions in the two levels from O ({sup 3} P {sub 1}) and O ({sup 3} P {sub 2}) does not follow the statistical weights, unlike astrophysical calculations for plasmas in nebulae. The physics of auroral impact ionization may account for this difference, and therefore for the raised value of R. In addition, the auroral solution of the densities of the ions, and thus of the value of R, is sensitive to the temperature of the neutral atmosphere. Although the present work is a statistical study, it shows that it is necessary to determine whether there are significant variations in the ratio resulting from non-equilibrium conditions, from auroral energy deposition, large electric fields, and changes in temperature and composition.

  15. The ultraviolet-bright, slowly declining transient PS1-11af as a partial tidal disruption event

    SciTech Connect (OSTI)

    Chornock, R.; Berger, E.; Zauderer, B. A.; Kamble, A.; Soderberg, A. M.; Czekala, I.; Dittmann, J.; Drout, M.; Foley, R. J.; Fong, W.; Kirshner, R. P.; Lunnan, R.; Marion, G. H.; Narayan, G.; Gezari, S.; Rest, A.; Riess, A. G.; Chomiuk, L.; Huber, M. E.; Lawrence, A.; and others

    2014-01-01

    We present the Pan-STARRS1 discovery of the long-lived and blue transient PS1-11af, which was also detected by Galaxy Evolution Explorer with coordinated observations in the near-ultraviolet (NUV) band. PS1-11af is associated with the nucleus of an early type galaxy at redshift z = 0.4046 that exhibits no evidence for star formation or active galactic nucleus activity. Four epochs of spectroscopy reveal a pair of transient broad absorption features in the UV on otherwise featureless spectra. Despite the superficial similarity of these features to P-Cygni absorptions of supernovae (SNe), we conclude that PS1-11af is not consistent with the properties of known types of SNe. Blackbody fits to the spectral energy distribution are inconsistent with the cooling, expanding ejecta of a SN, and the velocities of the absorption features are too high to represent material in homologous expansion near a SN photosphere. However, the constant blue colors and slow evolution of the luminosity are similar to previous optically selected tidal disruption events (TDEs). The shape of the optical light curve is consistent with models for TDEs, but the minimum accreted mass necessary to power the observed luminosity is only ?0.002 M {sub ?}, which points to a partial disruption model. A full disruption model predicts higher bolometric luminosities, which would require most of the radiation to be emitted in a separate component at high energies where we lack observations. In addition, the observed temperature is lower than that predicted by pure accretion disk models for TDEs and requires reprocessing to a constant, lower temperature. Three deep non-detections in the radio with the Very Large Array over the first two years after the event set strict limits on the production of any relativistic outflow comparable to Swift J1644+57, even if off-axis.

  16. NEW PRECISION ORBITS OF BRIGHT DOUBLE-LINED SPECTROSCOPIC BINARIES. VIII. HR 1528, HR 6993, 2 SAGITTAE, AND 18 VULPECULAE

    SciTech Connect (OSTI)

    Fekel, Francis C.; Williamson, Michael H.; Tomkin, Jocelyn E-mail: michael.h.williamson@gmail.com

    2013-11-01

    Improved orbital elements for four A-star double-lined spectroscopic binaries have been determined with numerous new radial velocities. Three of the four systems, HR 1528, 2 Sge, and 18 Vul, have moderately short orbital periods of 7.05, 7.39, and 9.31 days, respectively, and also have circular or nearly circular orbits. Only HR 6993 with a period of 14.68 days has a significantly eccentric orbit. The close visual companion of 2 Sge has been detected spectroscopically, and its velocity measured. The orbital dimensions (a {sub 1} sin i and a {sub 2} sin i) and minimum masses (m {sub 1} sin{sup 3} i and m {sub 2} sin{sup 3} i) of the short-period binary components all have accuracies of 0.5% or better. We determine basic properties of the individual stars and compare them with solar-abundance evolutionary tracks to estimate their masses. Half of the eight components may be synchronously or pseudosynchronously rotating.

  17. NEW PRECISION ORBITS OF BRIGHT DOUBLE-LINED SPECTROSCOPIC BINARIES. VII. 47 ANDROMEDAE, 38 CASSIOPEIAE, AND HR 8467

    SciTech Connect (OSTI)

    Fekel, Francis C.; Williamson, Michael H.; Tomkin, Jocelyn; Pourbaix, Dimitri E-mail: jt@alexis.as.utexas.edu

    2011-09-15

    Improved orbital elements for three double-lined spectroscopic binaries, 47 And, 38 Cas, and HR 8467, have been determined with extensive new radial velocities. For 38 Cas lines of the secondary have been detected for the first time. Given the orbital periods for these systems of 35.3682, 134.130, and 42.3813 days, respectively, it is not surprising that all three have either moderate or relatively high eccentricities. The orbital dimensions (a{sub 1}sin i and a{sub 2}sin i) and minimum masses (m{sub 1}sin{sup 3}i and m{sub 2}sin{sup 3}i) have accuracies of 0.5% or better. An astrometric orbit for 38 Cas, which was recomputed with Hipparcos astrometry and our new spectroscopic orbital elements, produces a very high orbital inclination of 88{sup 0} {+-} 5{sup 0}. We have found no evidence for eclipses in either 38 Cas or HR 8467. We estimate that both components of 38 Cas are slightly metal poor with [Fe/H] = -0.3. The two components of 47 And are Am main-sequence stars, while our spectral types for 38 Cas are F6 dwarf and G5 dwarf for its primary and secondary, respectively. For HR 8467 we determined spectral types of F6 subgiant and F6 dwarf for the components. The primary of HR 8467 is likely just beginning to traverse the Hertzsprung gap and is rotating more slowly than its pseudosynchronous velocity, while the main-sequence secondary is rotating pseudosynchronously. On the other hand, the binary components of 47 And and 38 Cas are rotating significantly faster than their pseudosynchronous velocities.

  18. NEW PRECISION ORBITS OF BRIGHT DOUBLE-LINED SPECTROSCOPIC BINARIES. V. THE AM STARS HD 434 AND 41 SEXTANTIS

    SciTech Connect (OSTI)

    Fekel, Francis C. [Kitt Peak National Observatory, National Optical Astronomy Observatory (United States); Williamson, Michael H., E-mail: fekel@evans.tsuniv.ed [Center of Excellence in Information Systems, Tennessee State University, 3500 John A. Merritt Boulevard, Box 9501, Nashville, TN 37209 (United States)

    2010-11-15

    We have detected the secondary component in two previously known spectroscopic binaries, HD 434 and 41 Sex, and for the first time determined double-lined orbits for them. Despite the relatively long period of 34.26 days and a moderate eccentricity of 0.32, combined with the components' rotationally broadened lines, measurement of the primary and secondary radial velocities of HD 434 has enabled us to obtain significantly improved orbital elements. While the 41 Sex system has a much shorter period of 6.167 days and a circular orbit, the estimated V mag difference of 3.2 between its components also makes this a challenging system. The new orbital dimensions (a{sub 1} sin i and a{sub 2} sin i) and minimum masses (m{sub 1} sin{sup 3} i and m{sub 2} sin{sup 3} i) of HD 434 have accuracies of 0.8% or better, while the same quantities for 41 Sex are good to 0.5% or better. Both components of HD 434 are Am stars while the Am star primary of 41 Sex has a late-F or early-G companion. All four stars are on the main sequence. The two components of HD 434 are rotating much faster than their predicted pseudosynchronous velocities, while both components of 41 Sex are synchronously rotating. For the primary of 41 Sex, the spectrum line depth changes noted by Sreedhar Rao et al. were not detected.

  19. CONSTRAINTS ON THE MINIMUM ELECTRON LORENTZ FACTOR AND MATTER CONTENT OF JETS FOR A SAMPLE OF BRIGHT FERMI BLAZARS

    SciTech Connect (OSTI)

    Kang, Shi-Ju; Wu, Qingwen; Chen, Liang

    2014-11-01

    We fit (quasi-)simultaneous multi-waveband spectral energy distributions for a sample of low-synchrotron-peaked (LSP) blazars with a one-zone leptonic model. The seed photons that predominantly come from the broad line region (BLR) and infrared (IR) molecular torus are considered in the context of an external Compton process. We find that modeling with IR seed photons is systematically better than that with BLR photons based on a ?{sup 2} test, which suggests that ?-ray-emitting regions are most likely found outside the BLR. The minimum electron Lorentz factor, ?{sub min}, is constrained from the modeling of these LSP blazars with good soft X-ray data (ranging from 5 to 160 with a median value of 55), which plays a key role in jet power estimation. Assuming a one-to-one ratio of protons to electrons, we find that the jet power for LSP blazars is systematically higher than that of FR II radio galaxies at a 151 MHz radio luminosity, L {sub 151} {sub MHz} even though FR IIs are regarded as the same as LSP blazars in a unification scheme except at the jet viewing angle. A possible reason for this is that there are some e {sup } pairs in the jets of these blazars. If this is the case, we find that the number density of e {sup } pairs should be several times higher than that of e {sup }-p pairs by assuming the jet power is the same for LSP blazars and FR IIs at the given L {sub 151} {sub MHz}.

  20. SUSTAINABLE AND HOLISTIC INTEGRATION OF ENERGY STORAGE AND SOLAR...

    Office of Environmental Management (EM)

    SUSTAINABLE AND HOLISTIC INTEGRATION OF ENERGY STORAGE AND SOLAR PV (SHINES) SUSTAINABLE AND ... levels of PV caused by the intermittency and variability of solar production. ...

  1. Search results | Department of Energy

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

    Energy 101: Solar PV Solar photovoltaic (PV) systems can generate clean, cost-effective power anywhere the sun shines. http:energy.goveerevideosenergy-101-solar-pv Video...

  2. EECBG Success Story: Tribe's Headquarters Gets Energy Efficiency...

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

    Programs EECBG Success Story: San Francisco Turns Up The Heat In Push To Eliminate Old Boilers EECBG Success Story: Shining Energy-Saving LEDs on Utah Starry Nights...

  3. Kathy Chambers | Department of Energy

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

    Chambers - Senior Science and Technical Information Specialist, OSTI Most Recent by Kathy Chambers A Shining Example of Dr. King's legacy January 9...

  4. Search results | Department of Energy

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

    PV Solar photovoltaic (PV) systems can generate clean, cost-effective power anywhere the sun shines. http:energy.goveerevideosenergy-101-solar-pv Video Energy 101:...

  5. Flipping Photoelectron Spins in Topological Insulators

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

    Spintronics The ability to shine polarized light on a topological insulator (TI) and excite spin-polarization-tailored electrons has great potential for the field of spintronics - ...

  6. EECBG Success Story: Better Budget With Combined Funding for...

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

    Light Shines on Better Budget for Glendale, Arizona Kids attending Rancho Cucamonga's Earth Day celebration volunteer their answers at an educational program. | Photo courtesy...

  7. Building Technologies Office Load Control Strategies

    Broader source: Energy.gov [DOE]

    BTO researches and implements load control strategies, which support the Sustainable and Holistic IntegratioN of Energy storage and Solar PV (SHINES) FOA.

  8. EECBG Success Story: Nashville Turns an Eyesore into an Energy...

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

    Nashville Turns an Eyesore into an Energy-Efficient Asset EECBG Success Story: Nashville ... | Photo courtesy of Glendale EECBG Success Story: Light Shines on Better Budget for ...

  9. A highly conspicuous mineralized composite photonic architecture in the translucent shell of the blue-rayed limpet

    SciTech Connect (OSTI)

    Li, Ling; Kolle, Stefan; Weaver, James C.; Ortiz, Christine; Aizenberg, Joanna; Kolle, Mathias

    2015-02-26

    Many species rely on diverse selections of entirely organic photonic structures for the manipulation of light and the display of striking colours. Here we report the discovery of a mineralized hierarchical photonic architecture embedded within the translucent shell of the blue-rayed limpet Patella pellucida. The bright colour of the limpets stripes originates from light interference in a periodically layered zig-zag architecture of crystallographically co-oriented calcite lamellae. Beneath the photonic multilayer, a disordered array of light-absorbing particles provides contrast for the blue colour. This unique mineralized manifestation of a synergy of two distinct optical elements at specific locations within the continuum of the limpets translucent protective shell ensures the vivid shine of the blue stripes, which can be perceived under water from a wide range of viewing angles. The stripes reflection band coincides with the spectral range of minimal light absorption in sea water, raising intriguing questions regarding their functional significance.

  10. A highly conspicuous mineralized composite photonic architecture in the translucent shell of the blue-rayed limpet

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

    Li, Ling; Kolle, Stefan; Weaver, James C.; Ortiz, Christine; Aizenberg, Joanna; Kolle, Mathias

    2015-02-26

    Many species rely on diverse selections of entirely organic photonic structures for the manipulation of light and the display of striking colours. Here we report the discovery of a mineralized hierarchical photonic architecture embedded within the translucent shell of the blue-rayed limpet Patella pellucida. The bright colour of the limpet’s stripes originates from light interference in a periodically layered zig-zag architecture of crystallographically co-oriented calcite lamellae. Beneath the photonic multilayer, a disordered array of light-absorbing particles provides contrast for the blue colour. This unique mineralized manifestation of a synergy of two distinct optical elements at specific locations within the continuummore » of the limpet’s translucent protective shell ensures the vivid shine of the blue stripes, which can be perceived under water from a wide range of viewing angles. The stripes’ reflection band coincides with the spectral range of minimal light absorption in sea water, raising intriguing questions regarding their functional significance.« less

  11. Solar Policy Environment: Milwaukee

    Broader source: Energy.gov [DOE]

    The City of Milwaukee’s SAC Initiative, Milwaukee Shines, works to reduce informational, economic and procedural barriers to the widespread adoption of solar energy systems. While the City of Milwaukee and its partners have demonstrated commitment and experience in implementing solar technologies, Milwaukee Shines aims to enhance these efforts and make solar a viable alternative throughout the region.

  12. DYNAMICAL STRUCTURE OF THE MOLECULAR INTERSTELLAR MEDIUM IN AN EXTREMELY BRIGHT, MULTIPLY LENSED z {approx_equal} 3 SUBMILLIMETER GALAXY DISCOVERED WITH HERSCHEL

    SciTech Connect (OSTI)

    Riechers, Dominik A.; Cooray, A.; Carpenter, J. M.; Bock, J.; Omont, A.; Neri, R.; Cox, P.; Harris, A. I.; Baker, A. J.; Frayer, D. T.; Auld, R.; Aussel, H.; Chanial, P.; Blundell, R.; Brisbin, D.; Burgarella, D.; Chapman, S. C.; Clements, D. L.

    2011-05-20

    We report the detection of CO(J = 5 {yields} 4), CO(J = 3 {yields} 2), and CO(J = 1 {yields} 0) emission in the strongly lensed, Herschel/SPIRE-selected submillimeter galaxy (SMG) HERMES J105751.1+573027 at z = 2.9574 {+-} 0.0001, using the Plateau de Bure Interferometer, the Combined Array for Research in Millimeter-wave Astronomy, and the Green Bank Telescope. The observations spatially resolve the molecular gas into four lensed images with a maximum separation of {approx}9'' and reveal the internal gas dynamics in this system. We derive lensing-corrected CO line luminosities of L'{sub CO(1-0)} = (4.17 {+-} 0.41), L'{sub CO(3-2)} = (3.96 {+-} 0.20), and L'{sub CO(5-4)} = (3.45 {+-} 0.20) x 10{sup 10} ({mu}{sub L}/10.9){sup -1} K km s{sup -1} pc{sup 2}, corresponding to luminosity ratios of r{sub 31} = 0.95 {+-} 0.10, r{sub 53} = 0.87 {+-} 0.06, and r{sub 51} = 0.83 {+-} 0.09. This suggests a total molecular gas mass of M{sub gas} = 3.3x10{sup 10} ({alpha}{sub CO}/0.8) ({mu}{sub L}/10.9){sup -1} M{sub sun}. The gas mass, gas mass fraction, gas depletion timescale, star formation efficiency, and specific star formation rate are typical for an SMG. The velocity structure of the gas reservoir suggests that the brightest two lensed images are dynamically resolved projections of the same dust-obscured region in the galaxy that are kinematically offset from the unresolved fainter images. The resolved kinematics appear consistent with the complex velocity structure observed in major, 'wet' (i.e., gas-rich) mergers. Major mergers are commonly observed in SMGs and are likely to be responsible for fueling their intense starbursts at high gas consumption rates. This study demonstrates the level of detail to which galaxies in the early universe can be studied by utilizing the increase in effective spatial resolution and sensitivity provided by gravitational lensing.

  13. Time-dependent, x-ray spectral unfolds and brightness temperatures for intense Li{sup +} ion beam-driven hohlraums

    SciTech Connect (OSTI)

    Fehl, D.L.; Chandler, G.A.; Biggs, F.; Dukart, R.J.; Moats, A.R.; Leeper, R.J.

    1997-01-01

    X-ray-producing hohlraums are being studied as indirect drives for inertial confinement fusion targets. In a 1994 target series on the PBFAII accelerator, cylindrical hohlraum targets were heated by an intense Li{sup +} ion beam and viewed by an array of 13 time-resolved, filtered x-ray detectors (XRDs). The unfold operator (UFO) code and its suite of auxiliary functions were used extensively in obtaining time-resolved x-ray spectra and radiation temperatures from this diagnostic. The UFO was also used to obtain fitted response functions from calibration data, to simulate data from blackbody x-ray spectra of interest, to determine the suitability of various unfolding parameters (e.g., energy domain, energy partition, smoothing conditions, and basis functions), to interpolate the XRD signal traces, and to unfold experimental data. The simulation capabilities of the code were useful in understanding an anomalous feature in the unfolded spectra at low photon energies ({le}100 eV). Uncertainties in the differential and energy-integrated unfolded spectra were estimated from uncertainties in the data. The time{endash}history of the radiation temperature agreed well with independent calculations of the wall temperature in the hohlraum. {copyright} {ital 1997 American Institute of Physics.}

  14. Time-dependent, x-ray spectral unfolds and brightness temperatures for intense Li{sup +} ion beam-driven hohlraums

    SciTech Connect (OSTI)

    Fehl, D.L.; Chandler, G.A.; Biggs, F.; Dukart, R.J.; Moats, A.R.; Leeper, R.J.

    1996-07-01

    X-ray-producing hohlraums are being studied as indirect drives for Inertial Confinement Fusion targets. In a 1994 target series on the PBFAII accelerator, cylindrical hohlraum targets were heated by an intense Li{sup +} ion beam and viewed by an array of 13 time-resolved, filtered x-ray detectors (XRDs). The UFO unfold code and its suite of auxiliary functions were used extensively in obtaining time- resolved x-ray spectra and radiation temperatures from this diagnostic. UFO was also used to obtain fitted response functions from calibration data, to simulate data from blackbody x-ray spectra of interest, to determine the suitability of various unfolding parameters (e.g., energy domain, energy partition, smoothing conditions, and basis functions), to interpolate the XRD signal traces, and to unfold experimental data. The simulation capabilities of the code were useful in understanding an anomalous feature in the unfolded spectra at low photon energies ({le} 100 eV). Uncertainties in the differential and energy-integrated unfolded spectra were estimated from uncertainties in the data. The time-history of the radiation temperature agreed well with independent calculations of the wall temperature in the hohlraum.

  15. Newsletters | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Highlights Work Critical to Stewardship Science NNSA Rolls Out Mobile Radiation Detection System for INTERPOL Members NNSA Monitors Major League Baseball's All-Star Game NNSA Rolls...

  16. CX-100428 Categorical Exclusion Determination | Department of...

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

    CX-100428 Categorical Exclusion Determination Sustainable and Holistic Integration of Energy Storage and Solar PV (SHINES) Award Number: DE-EE0007177 CX(s) Applied: A9, B3.6 Solar...

  17. Fall and Winter Energy-Saving Tips | Department of Energy

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

    from the Sun Photo of a window with the curtains open. Sun is shining into the room and snow-covered mountains are visible outside. Copyright iStockphoto.comGiorgio Fochesato....

  18. EECBG Success Story: Sundance, Skiing and Solar: Park City to Install New PV System

    Broader source: Energy.gov [DOE]

    The mountain paradise of Park City, Utah - best known for its sensational skiing and annual Sundance Film Festival - is quickly becoming a shining example of environmental sustainability. Learn more.

  19. Tips: Landscaping | Department of Energy

    Energy Savers [EERE]

    on the south and west sides will help keep your house cool in the summer and allow sun to shine through the windows in the winter. Buildings and trees-natural partners....

  20. Concentrating Solar Power - Fact Sheet

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

    CSP systems can store solar energy to be used when the sun is not shining. It will help meet the nation's goal of making solar energy fully cost-competitive with other energy ...

  1. Energy 101: Solar PV

    ScienceCinema (OSTI)

    None

    2013-05-29

    Solar photovoltaic (PV) systems can generate clean, cost-effective power anywhere the sun shines. This video shows how a PV panel converts the energy of the sun into renewable electricity to power homes and businesses.

  2. OSTI, US Dept of Energy, Office of Scientific and Technical Informatio...

    Office of Scientific and Technical Information (OSTI)

    To my way of thinking, this is tantamount to OSTI lighting 84 million candles that shine ... It's funny to think of any branch of the DOE lighting candles I'm thinking something more ...

  3. 2011 User Meeting Agenda

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

    Session Chair: Hendrik Bluhm, LBNL 15:35 Shining Light on Energy Conversion at GasSolid Interfaces Tony McDaniel, Sandia 16:00 Poster Slam: Student Poster Competition 16:30...

  4. Energy 101: Solar PV

    SciTech Connect (OSTI)

    2011-01-01

    Solar photovoltaic (PV) systems can generate clean, cost-effective power anywhere the sun shines. This video shows how a PV panel converts the energy of the sun into renewable electricity to power homes and businesses.

  5. Lensless Imaging of Magnetic Nanostructures

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

    to detect the state of your image in the mirror (reflection). If you are an ALS scientist, perhaps you go to work and shine some x-ray light on a crystal to detect the...

  6. Energy 101: Solar PV

    Broader source: Energy.gov [DOE]

    Solar photovoltaic (PV) systems can generate clean, cost-effective power anywhere the sun shines. This video shows how a PV panel converts the energy of the sun into renewable electricity to power...

  7. SSRL HEADLINES March 2009

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

    SLAC to Receive 68.3 Million in Recovery Act Funding SSRL's New CAMS Group has Great Chemistry XAS Experiments Resume on the 'New' BL4-1 SLAC Shines in Condensed Matter...

  8. Pumpkin-Patterns-2015-final

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

    Solar energy can be found everywhere the sun shines, and solar energy systems like these solar panels have a minimal impact on the environment. Light emitting diode (LED) bulbs ...

  9. Microsoft Word - NETL-TRS-2-2014_Addendum 1 to Foamed Cement...

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

    McIntyre, D.; Spaulding, R.; Strazisar, B.; Rosenbaum, E.; Haljasmaa, I.; Benge, G.; Cunningham, E.; DeBruijn, G.; Shine, J.; Gardner, C. Addendum 1 to Computed Tomography and...

  10. Turning Windows into Solar Panels | Department of Energy

    Energy Savers [EERE]

    Windows into Solar Panels Turning Windows into Solar Panels March 7, 2016 - 3:23pm Addthis UV light shines through a sample of transparent material containing quantum dots, tiny nanoparticles that can be used to harness solar energy for electricity. | Photo courtesy of LANL. UV light shines through a sample of transparent material containing quantum dots, tiny nanoparticles that can be used to harness solar energy for electricity. | Photo courtesy of LANL. Victor Klimov Los Alamos National

  11. EERE Success Story-Reaching New Limits with Solar Storage | Department of

    Energy Savers [EERE]

    Energy Reaching New Limits with Solar Storage EERE Success Story-Reaching New Limits with Solar Storage February 25, 2016 - 10:49am Addthis Sunlight reflected from heliostats is shining directly on the particle receiver, which is currently being tested on top of the solar tower at the National Solar Thermal Test Facility. Sunlight reflected from heliostats is shining directly on the particle receiver, which is currently being tested on top of the solar tower at the National Solar Thermal

  12. Notice of Intent to Issue Funding Opportunity for Integrated PV and Energy Storage Systems

    Broader source: Energy.gov [DOE]

    As solar power plants proliferate, the variability and uncertainty of the solar resource poses challenges for integrating PV with electric power systems at both the distribution and bulk system levels. In response to these challenges, the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy (EERE) has issued a notice of intent (NOI) to release the SunShot Sustainable and Holistic IntegratioN of Energy storage and Solar (SHINES) funding opportunity. SHINES will enable the holistic design, development, and widespread sustainable deployment of low-cost, flexible, and reliable energy storage solutions, and will strive to successfully integrate these solutions into PV power plants. SHINES projects can also focus on demand response and load management to achieve target metrics.

  13. This Week In Petroleum Printer-Friendly Version

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    1, 2007 (Next Release on July 18, 2007) The Second Half The Major League Baseball All-Star Game, which was played last night, occurs every year at the midpoint of the baseball...

  14. Photovoltaic Cell Quantum Efficiency Basics | Department of Energy

    Energy Savers [EERE]

    Quantum Efficiency Basics Photovoltaic Cell Quantum Efficiency Basics August 20, 2013 - 3:05pm Addthis Quantum efficiency (QE) is the ratio of the number of charge carriers collected by a photovoltaic (PV) cell to the number of photons-or packets of light-of a given energy shining on the solar cell. Quantum efficiency therefore relates to the response of a solar cell to the various wavelengths in the spectrum of light shining on the cell. The QE is given as a function of either wavelength or

  15. How American Businesses are Leading the Way in Green Building Technology |

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

    Department of Energy American Businesses are Leading the Way in Green Building Technology How American Businesses are Leading the Way in Green Building Technology April 15, 2015 - 1:20pm Addthis See how U.S. companies made the Shanghai Tower a shining example of green building. | Graphic by <a href="/node/678346">Matty Greene</a>, Department of Energy. See how U.S. companies made the Shanghai Tower a shining example of green building. | Graphic by Matty Greene,

  16. Tips: Landscaping | Department of Energy

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

    Landscaping Tips: Landscaping Buildings and trees—natural partners. Deciduous trees planted on the south and west sides will help keep your house cool in the summer and allow sun to shine through the windows in the winter. Buildings and trees-natural partners. Deciduous trees planted on the south and west sides will help keep your house cool in the summer and allow sun to shine through the windows in the winter. Landscaping is a natural and beautiful way to keep your home cool in summer and

  17. Photometric Variations as Small Perturbations in Aerosol Content

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

    Aperture photometry assumes that a star brightness is exactly measured as a positive signal above the surrounding sky brightness. One chooses a number of pixels (aperture)...

  18. Storing Renewable Energy in Chemical Bonds

    ScienceCinema (OSTI)

    Helm, Monte; Bullock, Morris

    2014-06-13

    With nearly 7 billion people, the world's population is demanding more electricity every year. Improved technologies are bringing wind and solar power to our electrical grid. However, wind turbines and solar panels only work when the wind blows or the sun shines. PNNL scientists discuss catalysis approaches for storing and releasing energy on demand.

  19. Storing Renewable Energy in Chemical Bonds

    SciTech Connect (OSTI)

    Helm, Monte; Bullock, Morris

    2013-03-27

    With nearly 7 billion people, the world's population is demanding more electricity every year. Improved technologies are bringing wind and solar power to our electrical grid. However, wind turbines and solar panels only work when the wind blows or the sun shines. PNNL scientists discuss catalysis approaches for storing and releasing energy on demand.

  20. Rachel Woods-Robinson | Department of Energy

    Energy Savers [EERE]

    Woods-Robinson About Us Rachel Woods-Robinson - Guest Blogger, Cycle for Science Most Recent Rain or Shine: We Cycle for Science July 2 Mountains, and Teachers, and a Bear, Oh My! June 2 Sol-Cycle: Biking Across America for Science Education May

  1. Elizabeth Case | Department of Energy

    Office of Environmental Management (EM)

    Case About Us Elizabeth Case - Guest Blogger, Cycle for Science Most Recent Rain or Shine: We Cycle for Science July 2 Mountains, and Teachers, and a Bear, Oh My! June 2 Sol-Cycle: Biking Across America for Science Education May 1

  2. Design and Construction of Experiment for Direct Electron Irradiation of Uranyl Sulfate Solution: Bubble Formation and Thermal Hydraulics Studies

    SciTech Connect (OSTI)

    Chemerisov, Sergey; Gromov, Roman; Makarashvili, Vakho; Heltemes, Thad; Sun, Zaijing; Wardle, Kent E.; Bailey, James; Quigley, Kevin; Stepinski, Dominique; Vandegrift, George

    2014-10-01

    Argonne is assisting SHINE Medical Technologies in developing SHINE, a system for producing fission-product 99Mo using a D/T-accelerator to produce fission in a non-critical target solution of aqueous uranyl sulfate. We have developed an experimental setup for studying thermal-hydraulics and bubble formation in the uranyl sulfate solution to simulate conditions expected in the SHINE target solution during irradiation. A direct electron beam from the linac accelerator will be used to irradiate a 20 L solution (sector of the solution vessel). Because the solution will undergo radiolytic decomposition, we will be able to study bubble formation and dynamics and effects of convection and temperature on bubble behavior. These experiments will serve as a verification/ validation tool for the thermal-hydraulic model. Utilization of the direct electron beam for irradiation allows homogeneous heating of a large solution volume and simplifies observation of the bubble dynamics simultaneously with thermal-hydraulic data collection, which will complement data collected during operation of the miniSHINE experiment. Irradiation will be conducted using a 30-40 MeV electron beam from the high-power linac accelerator. The total electron-beam power will be 20 kW, which will yield a power density on the order of 1 kW/L. The solution volume will be cooled on the front and back surfaces and central tube to mimic the geometry of the proposed SHINE solution vessel. Also, multiple thermocouples will be inserted into the solution vessel to map thermal profiles. The experimental design is now complete, and installation and testing are in progress.

  3. Method of measuring a liquid pool volume

    DOE Patents [OSTI]

    Garcia, Gabe V. (Las Cruces, NM); Carlson, Nancy M. (Idaho Falls, ID); Donaldson, Alan D. (Idaho Falls, ID)

    1991-01-01

    A method of measuring a molten metal liquid pool volume and in particular molten titanium liquid pools, including the steps of (a) generating an ultrasonic wave at the surface of the molten metal liquid pool, (b) shining a light on the surface of a molten metal liquid pool, (c) detecting a change in the frequency of light, (d) detecting an ultrasonic wave echo at the surface of the molten metal liquid pool, and (e) computing the volume of the molten metal liquid.

  4. A Metabolic Pathway in Cyanobacteria Could Yield Better Biofuels and

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

    Bioproducts from Photosynthesis - News Releases | NREL A Metabolic Pathway in Cyanobacteria Could Yield Better Biofuels and Bioproducts from Photosynthesis December 11, 2015 Scientists from the Energy Department's National Renewable Energy Laboratory (NREL) have discovered that a metabolic pathway previously only suggested to be functional in photosynthetic organisms is actually a major pathway and can enable efficient conversion of carbon dioxide to organic compounds. The discovery shines

  5. ALSNews Vol. 308

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

    8 Print In This Issue Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Biomimetic Dye Molecules for Solar Cells Photon Science for Renewable Energy: A News ALS Brochure Everything You Wanted To Know About ALS Proposals, Beam Time Allocations ALS Science Cafés Successful, Continue VUVX 2010 Conference Update Ring Leaders: Scientific Support Group Announcements: Vogue Shines Light on the ALS, ALS Facebook Flourishing, Guest House Special Extended Who's in the News Operations Update

  6. ALSNews Vol. 308

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

    8 Print In This Issue Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Biomimetic Dye Molecules for Solar Cells Photon Science for Renewable Energy: A News ALS Brochure Everything You Wanted To Know About ALS Proposals, Beam Time Allocations ALS Science Cafés Successful, Continue VUVX 2010 Conference Update Ring Leaders: Scientific Support Group Announcements: Vogue Shines Light on the ALS, ALS Facebook Flourishing, Guest House Special Extended Who's in the News Operations Update

  7. ALSNews Vol. 308

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

    8 Print In This Issue Rotary Firing in Ring-Shaped Protein Explains Unidirectionality Biomimetic Dye Molecules for Solar Cells Photon Science for Renewable Energy: A News ALS Brochure Everything You Wanted To Know About ALS Proposals, Beam Time Allocations ALS Science Cafés Successful, Continue VUVX 2010 Conference Update Ring Leaders: Scientific Support Group Announcements: Vogue Shines Light on the ALS, ALS Facebook Flourishing, Guest House Special Extended Who's in the News Operations Update

  8. Using Solar Power to Supplement Workplace Charging | Department of Energy

    Energy Savers [EERE]

    Using Solar Power to Supplement Workplace Charging Using Solar Power to Supplement Workplace Charging Installing plug-in electric vehicle (PEV) charging stations at the workplace demonstrates a commitment towards a greener campus. With workplace charging, most employees plug in their PEVs during the day, when the sun is shining. Using solar power to supplement electricity from the grid can help employers further reduce their carbon footprint by off-setting the mid-day electricity consumption of

  9. Laser cooling of solids

    SciTech Connect (OSTI)

    Epstein, Richard I; Sheik-bahae, Mansoor

    2008-01-01

    We present an overview of solid-state optical refrigeration also known as laser cooling in solids by fluorescence upconversion. The idea of cooling a solid-state optical material by simply shining a laser beam onto it may sound counter intuitive but is rapidly becoming a promising technology for future cryocooler. We chart the evolution of this science in rare-earth doped solids and semiconductors.

  10. In the OSTI Collections: Gamma-Ray Bursts | OSTI, US Dept of Energy, Office

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

    of Scientific and Technical Information Gamma-Ray Bursts The Fermi Gamma-ray Space Telescope and its first lessons Seeing indirectly by shining light through light Gamma-ray bursters The Large Synoptic Survey Telescope An emerging picture References Research Organizations Instrument Websites Reports Available through OSTI's SciTech Connect Additional Reference The night sky, as our unaided eyes present it to us, obviously contains the sun, the moon, thousands of stars, a few planets, a milky

  11. Light-Material Interactions in Energy Conversion - Energy Frontier Research

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

    Center (LMI-EFRC) Luminescent LED-type solar cell design breaks efficiency records Professor Eli Yablonovitch's breakthrough result that enabled Alta Device's record solar cell efficiency is highlighted at physorg.com, semiconductor-today.com, and CleanTechnica.com. PhysOrg, "The solar cell that also shines: Luminescent 'LED-type' design breaks efficiency record," April 19, 2012 Semiconductor Today, "Luminescent 'LED-type' solar cell design breaks efficiency record,"

  12. Energy Sciences Building | Argonne National Laboratory

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

    Video Argonne's Energy Sciences Building Resources Energy Sciences Building (ESB) brochure Energy Sciences Building The Energy Sciences Building is a world-class scientific facility and a shining example of sustainable design. Argonne's Energy Sciences Building (ESB) contains a nexus of interdisciplinary research in basic materials design, fundamental chemistry and energy systems research designed to address the nation's most pressing challenge of the 21st century - clean, affordable, and

  13. Microsoft PowerPoint - in-situ 2015_StaffScienceHighlight

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

    situ environment shines light and neutrons on structure-function evolution of polymers Researchers developed a sample environment where neutron and optical probes worked in concert to track molecular dynamics in solution a and in thin films b . They used their new capability-in situ multimodal interrogation of structures and functions-to make discoveries likely to improve photovoltaic materials, including assembling a polymer into functional structures in aqueous solution using a detergent-like

  14. Kazmerski Leads National Center for Solar Research

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

    Kazmerski Leads National Center for Solar Research For more information contact: e:mail: Public Affairs Golden, Colo., Dec. 1, 1998 — The future of solar energy got brighter today when Larry Kazmerski started his new position as director of the National Center for Photovoltaics (NCPV). Thanks to his shining 21-year research career at the National Renewable Energy Laboratory (NREL), he was selected after a nationwide search. The U.S. Department of Energy created the NCPV in 1996 to provide a

  15. Concentrator Photovoltaic System Basics | Department of Energy

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

    Concentrator Photovoltaic System Basics Concentrator Photovoltaic System Basics August 20, 2013 - 4:12pm Addthis Concentrator photovoltaic (PV) systems use less solar cell material than other PV systems. PV cells are the most expensive components of a PV system, on a per-area basis. A concentrator makes use of relatively inexpensive materials such as plastic lenses and metal housings to capture the solar energy shining on a fairly large area and focus that energy onto a smaller area-the solar

  16. National Residential Efficiency Measures Database | Department of Energy

    Energy Savers [EERE]

    Residential Buildings » Building America » National Residential Efficiency Measures Database National Residential Efficiency Measures Database This photo shows a man in a white hazardous materials suit blowing insulation inside of an attic. He is wearing a headlamp on his head and the beam shines in the general direction of the insulation tube he is holding. Home improvement can be expensive. The good news is that many energy efficiency improvements quickly pay for themselves in energy

  17. Center for Nanophase Materials Sciences (CNMS)

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

    Events CNMS User Newsletters People Contact Us Upcoming Events and Latest News Call For Proposals - OPEN! (Deadline May 4) CNMS User Meeting - August 10-12, 2016 Career Opportunities Recent News: Researchers Stack the Odds for Novel Optoelectronic 2D Materials, Lab Manager Beetle-inspired discovery could reduce frost's costly sting, EurekAlert Submit your ideas for improving CNMS! Research Highlights In-situ Environment Shines Light and Neutrons on Structure-Function Evolution of Polymers

  18. Photovoltaic Cell Conversion Efficiency Basics | Department of Energy

    Energy Savers [EERE]

    Conversion Efficiency Basics Photovoltaic Cell Conversion Efficiency Basics August 20, 2013 - 2:58pm Addthis The conversion efficiency of a photovoltaic (PV) cell, or solar cell, is the percentage of the solar energy shining on a PV device that is converted into electrical energy, or electricity. Improving this conversion efficiency is a key goal of research and helps make PV technologies cost-competitive with more traditional sources of energy. Factors Affecting Conversion Efficiency Much of

  19. Photovoltaic Crystalline Silicon Cell Basics | Department of Energy

    Energy Savers [EERE]

    Crystalline Silicon Cell Basics Photovoltaic Crystalline Silicon Cell Basics August 20, 2013 - 2:00pm Addthis To separate electrical charges, crystalline silicon cells must have a built-in electric field. Light shining on crystalline silicon may free electrons within the crystal lattice, but for these electrons to do useful work-such as provide electricity to a light bulb-they must be separated and directed into an electrical circuit. PV Semiconductors To create an electric field within a

  20. CSP Systems Analysis | Department of Energy

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

    Systems Analysis CSP Systems Analysis Parabolic Trough Collectors Parabolic Trough Collectors Parabolic trough collectors concentrate the sun's energy on an oil- filled tube running along the focal line of the parabolically shaped trough. Read more Linear Fresnel Reflectors Linear Fresnel Reflectors These mirrors focus sunlight to the top of the structure where molten salt is flowing. The resulting heat is stored and used when the sun is not shining. Read more Power Towers Power Towers This

  1. Fact Sheet: Concentrating Solar Power | Department of Energy

    Office of Environmental Management (EM)

    Concentrating Solar Power Fact Sheet: Concentrating Solar Power Concentrating solar power (CSP) is a dispatchable, renewable energy option that uses mirrors to focus and concentrate sunlight onto a receiver, from which a heat transfer fluid carries the intense thermal energy to a power block to generate electricity. CSP systems can store solar energy to be used when the sun is not shining. It will help meet the nation's goal of making solar energy fully cost-competitive with other energy sources

  2. Systems Integration Competitive Awards | Department of Energy

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

    Systems Integration Competitive Awards Systems Integration Competitive Awards awards graphic cropped.png Through the SunShot Systems Integration efforts, DOE is funding a range of research and development (R&D) projects to advance technology in four broad, inter-related areas: Grid Performance and Reliability, Dispatchability, Power Electronics and Communications. FUNDING OPPORTUNITY YEAR ANNOUNCED AMOUNT AWARDED SuNLaMP 2015 $59M SHINES 2014 $15M SUNRISE 2013 $4M PREDICTS 2013 $1M National

  3. Raising the Bar within the Weatherization and Home Performance Industry |

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

    Department of Energy Raising the Bar within the Weatherization and Home Performance Industry Raising the Bar within the Weatherization and Home Performance Industry Addthis Description The Weatherization Assistance Program (WAP) was created in 1976 to assist low-income families who lacked resources to invest in energy efficiency. This video not only shines a light of the existing success of the WAP, but it also takes a look at its recent evolution through the Guidelines for Home Energy

  4. Coordinating the Council on Women and Girls | Department of Energy

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

    Coordinating the Council on Women and Girls Coordinating the Council on Women and Girls Girls in STEM, featuring young women scientists and engineers who wowed the President and the nation at the White House Science Fair in February, shines a spotlight on these extraordinary young role models and their exciting projects -- ranging from a machine that detects buried landmines, to a prosthetic hand device, to a lunchbox that uses UV light to kill bacteria on food. http://www.whitehouse.gov/stem On

  5. Bright reddish-orange emission and good piezoelectric properties of Sm{sub 2}O{sub 3}-modified (K{sub 0.5}Na{sub 0.5})NbO{sub 3}-based lead-free piezoelectric ceramics

    SciTech Connect (OSTI)

    Hao, Jigong; Xu, Zhijun Chu, Ruiqing; Li, Wei; Du, Juan

    2015-05-21

    Reddish orange-emitting 0.948(K{sub 0.5}Na{sub 0.5})NbO{sub 3}-0.052LiSbO{sub 3}-xmol%Sm{sub 2}O{sub 3} (KNN-5.2LS-xSm{sub 2}O{sub 3}) lead-free piezoelectric ceramics with good piezoelectric properties were fabricated in this study, and the photoluminescence and electrical properties of the ceramics were systematically studied. Results showed that Sm{sub 2}O{sub 3} substitution into KNN-5.2LS induces a phase transition from the coexistence of orthorhombic and tetragonal phases to a pseudocubic phase and shifts the polymorphic phase transition (PPT) to below room temperature. The temperature stability and fatigue resistance of the modified ceramics were significantly improved by Sm{sub 2}O{sub 3} substitution. The KNN-5.2LS ceramic with 0.4?mol. % Sm{sub 2}O{sub 3} exhibited temperature-independent properties (25150?C), fatigue-free behavior (up to 10{sup 6} cycles), and good piezoelectric properties (d{sub 33}{sup *?}=?230?pm/V, d{sub 33}?=?176 pC/N, k{sub p}?=?35%). Studies on the photoluminescence properties of the samples showed strong reddish-orange emission upon blue light excitation; these emission intensities were strongly dependent on the doping concentration and sintering temperature. The 0.4?mol. % Sm{sub 2}O{sub 3}-modified sample exhibited temperature responses over a wide temperature range of 10443?K. The maximum sensing sensitivity of the sample was 7.5??10{sup ?4} K at 293?K, at which point PPT occurred. A relatively long decay lifetime ? of 1.271.40?ms and a large quantum yield ? of 0.170.19 were obtained from the Sm-modified samples. These results suggest that the KNN-5.2LS-xSm{sub 2}O{sub 3} system presents multifunctional properties and significant technological potential in novel multifunctional devices.

  6. Microsoft PowerPoint - 15.1315_Arniban Basu | Department of Energy

    Office of Environmental Management (EM)

    315_Arniban Basu Microsoft PowerPoint - 15.1315_Arniban Basu PDF icon Microsoft PowerPoint - 15.1315_Arniban Basu More Documents & Publications Economic Environment - Arniban Basu, Chairman & CEO, Sage Policy Group, Inc. Microsoft PowerPoint - 03 Wyss Economic Outlook [Compatibility Mode] Michael Liebreich (Energy All Stars Presentation)

  7. Oakland, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Sky Bio Fuels BrightSource BrightSource Energy Glacier Bay Inc Local Power Inc Natron Resources Inc Orion Energy Group Orion Energy LLC Renewable Funding ThinkSolar SolarMarkt...

  8. Fuel Cell Technologies Office Newsletter: January 2013 | Department of

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

    Energy 3 Fuel Cell Technologies Office Newsletter: January 2013 The January 2013 issue of the Fuel Cell Technologies Office newsletter includes stories in these categories: In the News Funding Opportunities Webinars and Workshops Studies, Reports, and Publications National Laboratory and Principal Investigator Achievements In the News Photo of Sunita Satyapal and Jennifer Granholm FCT at Energy All Stars Inauguration Event Former Michigan Governor and clean energy advocate Jennifer Granholm

  9. NREL's Multi-Junction Solar Cells Teach Scientists How to Turn Plants into

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

    Powerhouses - News Releases | NREL NREL's Multi-Junction Solar Cells Teach Scientists How to Turn Plants into Powerhouses May 12, 2011 Plants can overcome their evolutionary legacies to become much better at using biological photosynthesis to produce energy, the kind of energy that can power vehicles in the near future, an all-star collection of biologists, physicists, photochemists, and solar scientists has found. A U.S. Department of Energy (DOE) workshop that drew a prestigious collection

  10. A method of measuring a molten metal liquid pool volume

    DOE Patents [OSTI]

    Garcia, G.V.; Carlson, N.M., Donaldson, A.D.

    1990-12-12

    A method of measuring a molten metal liquid pool volume and in particular molten titanium liquid pools, including the steps of (a) generating an ultrasonic wave at the surface of the molten metal liquid pool, (b) shining a light on the surface of a molten metal liquid pool, (c) detecting a change in the frequency of light, (d) detecting an ultrasonic wave echo at the surface of the molten metal liquid pool, and (e) computing the volume of the molten metal liquid. 3 figs.

  11. Laser-triggered vacuum switch

    DOE Patents [OSTI]

    Brannon, P.J.; Cowgill, D.F.

    1990-12-18

    A laser-triggered vacuum switch has a material such as a alkali metal halide on the cathode electrode for thermally activated field emission of electrons and ions upon interaction with a laser beam, the material being in contact with the cathode with a surface facing the discharge gap. The material is preferably a mixture of KCl and Ti powders. The laser may either shine directly on the material, preferably through a hole in the anode, or be directed to the material over a fiber optic cable. 10 figs.

  12. Method of measuring a liquid pool volume

    DOE Patents [OSTI]

    Garcia, G.V.; Carlson, N.M.; Donaldson, A.D.

    1991-03-19

    A method of measuring a molten metal liquid pool volume and in particular molten titanium liquid pools is disclosed, including the steps of (a) generating an ultrasonic wave at the surface of the molten metal liquid pool, (b) shining a light on the surface of a molten metal liquid pool, (c) detecting a change in the frequency of light, (d) detecting an ultrasonic wave echo at the surface of the molten metal liquid pool, and (e) computing the volume of the molten metal liquid. 3 figures.

  13. &quot;Science is Cool&quot; at Jefferson Lab's Open House, Saturday, April

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

    21 | Jefferson Lab "Science is Cool" at Jefferson Lab's Open House, Saturday, April 21 April 21, 2001 "Science is Cool" at Jefferson Lab's Open House, set for Saturday, April 21, 10 a.m. - 4 p.m. rain or shine. The event is free and will feature over 200 staff ready to share with visitors: the electron accelerator, an experimental hall, the Free Electron Laser, a variety of hands-on exhibits & learning activities, and liquid nitrogen demonstrations. The event will

  14. 2006 - 11 | Jefferson Lab

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

    November 2006 Thu, 11/16/2006 - 1:00am Jefferson Lab attracts record numbers to Geant4 workshop (Cern Courier) Sun, 11/12/2006 - 1:00am Jefferson Lab laser sets power record (Richmond Times-Dispatch) Fri, 11/10/2006 - 1:00am Goal: To make Hampton Roads a center for the cutting edge (The Virginian-Pilot) Fri, 11/10/2006 - 1:00am Free-electron laser shines at over 14 kilowatts in the infrared (Innovations Report) Thu, 11/09/2006 - 10:27am Free Electron Laser exceeds 14 kW in the infrared Thu,

  15. Photochemical cutting of fabrics

    DOE Patents [OSTI]

    Piltch, Martin S. (Los Alamos, NM)

    1994-01-01

    Apparatus for the cutting of garment patterns from one or more layers of fabric. A laser capable of producing laser light at an ultraviolet wavelength is utilized to shine light through a pattern, such as a holographic phase filter, and through a lens onto the one or more layers of fabric. The ultraviolet laser light causes rapid photochemical decomposition of the one or more layers of fabric, but only along the pattern. The balance of the fabric of the one or more layers of fabric is undamaged.

  16. PowerPoint Presentation

    Office of Environmental Management (EM)

    SRNL Mo-99 Technical Support for SHINE TM Discussion on Tritiated Waste Disposition Pathways for Commercial Entities Nancy Halverson SRNL Presentation for Tritium Focus Group Meeting Los Alamos, NM November 3, 2015 SRNL-L2100-2015-00098 Background - Molybdenum-99 ( 99 Mo or "moly") * "Molybdenum-99 is the parent isotope of technetium-99m ( 99m Tc) - 99 Mo is loaded into 99m Tc generator and is produced by 99 Mo decay - 99m Tc is extracted (by radiopharmacy staff) for use in

  17. Photo of the Week: Scouting for Valuable Lessons in Energy | Department of

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

    Energy During National Energy Action Month, Girl Scouts and Boy Scouts visited the Energy Department in Washington, D.C., to learn about energy and earn merit badges and patches. In this photo, a Boy Scout watches light shine on a solar panel that’s powering a hydrogen fuel cell system, showing how photovoltaic panels work and energy systems can be integrated. Check out <a href="/node/763371" target=_blank">more photos from the scouts’ Energy Action Month

  18. Advanced Thermal Energy Storage: Novel Tuning of Critical Fluctuations for Advanced Thermal Energy Storage

    SciTech Connect (OSTI)

    2011-12-01

    HEATS Project: NAVITASMAX is developing a novel thermal energy storage solution. This innovative technology is based on simple and complex supercritical fluids substances where distinct liquid and gas phases do not exist, and tuning the properties of these fluid systems to increase their ability to store more heat. In solar thermal storage systems, heat can be stored in NAVITASMAXs system during the day and released at nightwhen the sun is not shiningto drive a turbine and produce electricity. In nuclear storage systems, heat can be stored in NAVITASMAXs system at night and released to produce electricity during daytime peak-demand hours.

  19. Lighting the night one step at a time | Y-12 National Security Complex

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

    Lighting the night one step ... Lighting the night one step at a time Posted: November 15, 2014 - 11:30am Some 50 walkers representing Y-12 participated in The Leukemia & Lymphoma Society's Light The Night Walk held Oct. 23 at the University of Tennessee's Circle Park. This year marks the 10th year Y-12 employees have raised funds and shined a light on the importance of finding cures for and providing access to treatments for blood cancer patients. Y-12's team is striving to meet its $20,000

  20. Jefferson Lab plans Open House on Saturday, April 26 | Jefferson Lab

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

    JLab Open House Poster JLab will be open to the public on Saturday, April 25 from 9 a.m. to 3 p.m. rain or shine. Jefferson Lab plans Open House on Saturday, April 26 February 25, 2003 The Department of Energy's Jefferson Lab, located in Newport News, Va., has set Saturday, April 26, 2003, for its next "Science is Cool" Open House. "The Lab's last Open House was about two years ago," comments Linda Ware, Jefferson Lab Public Affairs manager. "We look forward to this

  1. 1996 News Releases | NREL

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

    6 News Releases Access news stories about the laboratory and renewable energy and energy efficiency technologies. Search Companies Selected for Small Wind Turbine Project - (11/27/96) DOE Forms National Center for Photovoltaics - (11/19/96) The Brightest in Solar Homes to Shine in Public Tour - (10/4/96) New NREL Research Facility Slashes Energy Use by 66 Percent - (10/3/96) Agreement Moves Nevada Solar Plant Step Closer to Reality - (10/3/96) Would-Be Solar Electric Homeowners Sought For

  2. Communiversity | Princeton Plasma Physics Lab

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

    April 27, 2014, 1:00pm to 6:00pm Princeton University Princeton University Communiversity Princeton Festival of the Arts The countdown is on for Communiversity, one of Central New Jersey's most well-known events and beloved annual traditions. This year's celebration of the arts is slated for Sunday, April 27, 2014 (rain or shine), from 1:00 to 6:00 p.m. Presented by the Arts Council of Princeton and the students of Princeton University, the event originated as "The Art People's Party"

  3. CX-100419 Categorical Exclusion Determination | Department of Energy

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

    9 Categorical Exclusion Determination CX-100419 Categorical Exclusion Determination SunDial - An Integrated SHINES System to Enable High Penetration Feeder-Level PV Award Number: DE-EE0007164 CX(s) Applied: A9, B5.16 Solar Energy Technology Office Date: 12/14/2015 Location(s): MA Office(s): Golden Field Office The U.S. Department of Energy (DOE) is proposing to provide federal funding to Fraunhofer USA Inc.'s Center for Sustainable Energy Systems to develop and demonstrate a scalable,

  4. IA Blog Archive | Department of Energy

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

    Blog Archive IA Blog Archive RSS December 7, 2015 IA Blog Archive Rise and Shine: Lighting the World with 10 Billion LED Bulbs Launched at COP21 in Paris, the Global Lighting Challenge is a race to deploy 10 billion high-efficiency, high-quality and affordable lighting fixtures and bulbs (like LEDs) around the world. December 1, 2015 Deputy Secretary Sherwood-Randall Co-Chairs the U.S.-Brazil Strategic Energy Dialogue The United States of America and the Federative Republic of Brazil reaffirmed

  5. Laser-triggered vacuum switch

    DOE Patents [OSTI]

    Brannon, Paul J. (Albuquerque, NM); Cowgill, Donald F. (Danville, CA)

    1990-01-01

    A laser-triggered vacuum switch has a material such as a alkali metal halide on the cathode electrode for thermally activated field emission of electrons and ions upon interaction with a laser beam, the material being in contact with the cathode with a surface facing the discharge gap. The material is preferably a mixture of KCl and Ti powders. The laser may either shine directly on the material, preferably through a hole in the anode, or be directed to the material over a fiber optic cable.

  6. Energy 101: Solar PV | Department of Energy

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

    Solar PV Energy 101: Solar PV Addthis Description Solar photovoltaic (PV) systems can generate clean, cost-effective power anywhere the sun shines. This video shows how a PV panel converts the energy of the sun into renewable electricity to power homes and businesses. Text Version Below is the text version for the Energy 101: Solar PV video. The video opens with "Energy 101: Solar PV." This is followed by a timelapse shot of a city skyline as day turns to night. All right, we all know

  7. Carlsten named IEEE Fellow

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

    Carlsten named IEEE Fellow February 11, 2016 The Institute of Electrical and Electronics Engineers (IEEE) has honored Bruce Carlsten of LANL's Accelerator Operations and Technology group with the title of Fellow. IEEE cited him "for contributions to high-brightness electron beams and vacuum electron devices." Carlsten is a pioneer in the production and use of high-brightness electron beams. His discovery of techniques enabling unprecedented beam brightness has led to a new generation

  8. Organic electroluminescent devices and method for improving energy efficiency and optical stability thereof

    DOE Patents [OSTI]

    Heller, Christian Maria

    2004-04-27

    An organic electroluminescent device ("OELD") has a controllable brightness, an improved energy efficiency, and stable optical output at low brightness. The OELD is activated with a series of voltage pulses, each of which has a maximum voltage value that corresponds to the maximum power efficiency when the OELD is activated. The frequency of the pulses, or the duty cycle, or both are chosen to provide the desired average brightness.

  9. 1

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

    orbiting bright stars. The GPI is located on the 8-meter Gemini South Telescope in Chile, although the coordinating science teams are spread globally. After GPI was installed...

  10. ARM - Publications: Science Team Meeting Documents: The Potential...

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

    Ed University of ColoradoCIRES Cimini, Domenico CETEMPS, University of L'Aquila, Italy Uttal, Taneil NOAAEnvironmental Technology Laboratory Radiometric brightness ...

  11. 1

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

    Scanning Filter Photometer for Measuring the Sky Brightness in the Solar Almucantar A. Kh. Shukurov, S. M. Pirogov, and G. S. Golitsyn A. M. Oboukhov Institute of Atmospheric...

  12. Appendix F References | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    1972. Environmental Survey of Transportation of Radioactive Materials to and from Nuclear Power Plants. WASH-1238. Washington, D.C. AEC 1972 Bhaduri, B.; Bright, E.;...

  13. Colorado's 1st congressional district: Energy Resources | Open...

    Open Energy Info (EERE)

    LLC BrightPhase Energy C Lock Technology Clean Energy Innovation Center Colorado Governor s Energy Office Colorado State Bank and Trust Conergy, Inc. Continuum Partners Crimson...

  14. Cerenkov Light

    ScienceCinema (OSTI)

    Slifer, Karl

    2014-05-22

    The bright blue glow from nuclear reactors is Cerenkov light. Karl Slifer describes how nuclear physicists can use this phenomenon to study the nucleus of the atom.

  15. Center for Energy Nanoscience at USC

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

    LED Nanowire LEDs GaN based light emitting diodes (LEDs) are a key technology for high brightness LEDs. Although already successful commercially, fundamental physical and device...

  16. The atomic structure and chemistry of Fe-rich steps on antiphase...

    Office of Scientific and Technical Information (OSTI)

    The atomic structure and chemistry of these steps are determined by a combination of high angle annular dark field and bright field scanning transmission electron microscopy ...

  17. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    ... The atomic structure and chemistry of these steps are determined by a combination of high angle annular dark field and bright field scanning transmission electron microscopy ...

  18. Business Energy Efficiency Rebate (Offered by 16 Utilities)

    Broader source: Energy.gov [DOE]

    Bright Energy Solutions offers energy efficiency cash incentive programs to residential and business customers of municipal utilities that are members of Missouri River Energy Services. In Iowa,...

  19. Residential Energy Efficiency Rebate (Offered by 16 Utilities)

    Broader source: Energy.gov [DOE]

    Bright Energy Solutions offers energy efficiency cash incentive programs to residential and business customers of municipal utilities that are members of Missouri River Energy Services. In Iowa,...

  20. GRB 080319B: the prompt emission of the 'Naked Eye Burst'

    SciTech Connect (OSTI)

    Covino, Stefano; Guidorzi, Cristiano; Margutti, Raffaella; Campana, Sergio; Chincarini, Guido; D'Avanzo, Paolo; Fugazza, Dino; Molinari, Emilio; Moretti, Alberto; Zerbi, Filippo; Karpov, Sergey; Beskin, Gregory M.; D'Elia, Valerio; Fiore, Fabrizio; Testa, Vincenzo; Greco, Giuseppe; Bartolini, Corrado; Guarnieri, Adriano; Piccioni, A.; Palazzi, Eliana

    2008-10-10

    We briefly review the main results of the observations carried out during the prompt emission of the exceptionally bright GRB 080319B.

  1. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    and quantumm mechanics, general physics (3) computerized simulation (3) condensed ... Bright x-ray sources from laser irradiation of foams with high concentration of Ti Perez, ...

  2. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    classical and quantum mechanics, general physics (1) concentration ratio (1) condensed ... Bright x-ray sources from laser irradiation of foams with high concentration of Ti Perez, ...

  3. Biological Imaging by Soft X-Ray Diffraction Microscopy

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

    after passage through the cell. The phase information is represented as hue (see color map at left) and the magnitude as brightness. The labels indicate the nucleus (N),...

  4. DOE Announces Selections for SSL Core Technology Research (Round...

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

    Research (Round 7), Product Development (Round 7), and U.S. Manufacturing (Round 2) Funding ... phosphor integration trade-offs in their high brightness package design and fabrication. ...

  5. ALSNews Vol. 314

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

    respectively. Highlights included a photo tour of the USB, and updates on the water-cooling tower, controls, and brightness upgrades in progress. Zahid Hussain updated users on...

  6. Commissioning of the first drift tube linac module in the Ground Test Accelerator

    SciTech Connect (OSTI)

    Johnson, K.F.; Sander, O.R.; Atkins, W.H.; Bolme, G.O.; Bowling, S.; Cole, R.; Connolly, R.; Denney, P.; Erickson, J.; Gilpatrick, J.D.; Ingalls, W.B.; Kersteins, D.; Kraus, R.; Lysenko, W.P.; McMurry, D.; Mottershead, C.T.; Power, J.; Rose, C.; Rusthoi, D.P.; Sandoval, D.P.; Schneider, J.D.; Smith, M.; Vaughn, G.; Wadlinger, E.A.; Weiss, R.; Yuan, V.

    1993-01-01

    The Ground Test Accelerator (GTA) has the objective of verifying much of the technology required for producing high-brightness, high-current H[sup [minus

  7. ARM - Publications: Science Team Meeting Documents

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

    input of ground-based measurements, and cloud liquid water path (LWP) is retrieved from ground-based microwave radiometer measured brightness temperature. All surface data are...

  8. ARM - Publications: Science Team Meeting Documents: A Climatology...

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

    and lidar pair, and rawinsonde sounding; cloud liquid water path (LWP) is retrieved from ground-based microwave radiometer measured brightness temperature; and cloud-droplet...

  9. ARMSMrv2.ppt

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

    satellite data and objectively using the AMSR-E rain rate and the IR brightness temperature from the MODIS. Anvil cloud structures associated with MCSs are then studied...

  10. ARM - Publications: Science Team Meeting Documents

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

    input of ground-based measurements, and cloud liquid water path (LWP) is retrieved from ground-based microwave radiometer measured brightness temperature. The satellite results,...

  11. Application Of High-Resolution Thermal Infrared Sensors For Geothermal...

    Open Energy Info (EERE)

    comparison to SEBASS. The land-leaving TIR radiance data were separated into brightness temperature and surface emissivity. TIR emissivity data are unique to each mineral and a...

  12. Nanocomposite scintillator and detector

    DOE Patents [OSTI]

    Cooke, D. Wayne (Santa Fe, NM); McKigney, Edward A. (Los Alamos, NM); Muenchausen, Ross E. (Los Alamos, NM); Bennett, Bryan L. (Los Alamos, NM); Ott, Kevin C. (Los Alamos, NM); Del Sesto, Rico E. (Los Alamos, NM); McCleskey, T. Mark (Los Alamos, NM); Burrell, Anthony K. (Los Alamos, NM)

    2009-06-16

    A nanocomposite scintillator is prepared using fast, bright, rare-earth doped nanopowder phosphor and a binder that is transparent to the emission of the phosphor.

  13. Flexible Assembly Solar Technology- FY13 Q3

    Broader source: Energy.gov [DOE]

    This document summarizes the progress of this BrightSource Energy project, funded by SunShot, for the second quarter of fiscal year 2013.

  14. Section 12

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

    from Measured Aureole Sky Brightness In the small-angle approximation of multiple light scattering (Belov et al. 1984), the intensity of scattered light is given by where ...

  15. The Dark Side of the Carbon Nanotube | The Ames Laboratory

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

    are composite pairs of quasielectrons and electron holes. Single-walled carbon nanotubes have unique electrical properties governed by the presence of dark and bright...

  16. Tax Credits, Rebates & Savings | Department of Energy

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

    Moorhead Public Service Utility- Commercial and Industrial Energy Efficiency Rebate Program Moorhead Public Service Utility offers the Bright Energy Solutions Programs for...

  17. Moorhead Public Service Utility - Commercial and Industrial Energy...

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

    Personal Computing Equipment Commercial Refrigeration Equipment Program Info Sector Name Utility Administrator Moorhead Public ServiceBright Energy Solutions Website http:...

  18. Tax Credits, Rebates & Savings | Department of Energy

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

    Ashland Electric Utility- Bright Way to Heat Water Rebate The City of Ashland Conservation Division offers a solar water heating program to its residential electric customers who...

  19. Oregon/Incentives | Open Energy Information

    Open Energy Info (EERE)

    Loan Program Yes Ashland Electric Utility - Bright Way to Heat Water Rebate (Oregon) Utility Rebate Program Yes Ashland Electric Utility - Commercial Conservation Loan Program...

  20. Tax Credits, Rebates & Savings | Department of Energy

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

    Solar Photovoltaics, Wind (All), Wind (Small), Hydroelectric (Small) Ashland Electric Utility- Bright Way to Heat Water Rebate The City of Ashland Conservation Division offers...

  1. Tax Credits, Rebates & Savings | Department of Energy

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

    Equipment Moorhead Public Service Utility- Commercial and Industrial Energy Efficiency Rebate Program Moorhead Public Service Utility offers the Bright Energy Solutions Programs...

  2. DOE Announces Nearly $1.4 billion in Conditional Loan Guarantees for

    Energy Savers [EERE]

    BrightSource Energy | Department of Energy .4 billion in Conditional Loan Guarantees for BrightSource Energy DOE Announces Nearly $1.4 billion in Conditional Loan Guarantees for BrightSource Energy February 22, 2010 - 12:00am Addthis Washington D.C. --- Energy Secretary Steven Chu today announced conditional commitments for more than $1.37 billion in loan guarantees under the American Recovery and Reinvestment Act to BrightSource Energy, Inc. to support the construction and start-up of three

  3. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    ... In contrast, wide-area samples of bright objects are poorly ... We also summarize additional work on photometric redshift ... Explorer (GALEX) near-UV luminosity of the markers. ...

  4. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    ... In contrast, wide-area samples of bright objects are poorly ... We also summarize additional work on photometric redshift ... THE REST-FRAME OPTICAL LUMINOSITY FUNCTION OF CLUSTER ...

  5. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    ... resolution of measured energy in the luminosity calorimeter. ... In contrast, wide-area samples of bright objects are poorly ... We also summarize additional work on photometric redshift ...

  6. Single-Particle Dynamics in Electron Storage Rings with Extremely...

    Office of Scientific and Technical Information (OSTI)

    Electron storage rings are widely used for high luminosity colliders, damping rings in ... To further increase the luminosity of colliders or the brightness of synchrotron light ...

  7. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    (47) performance (45) electrons (42) luminosity (38) b mesons (37) stanford linear ... 6) to produce beams that are sufficiently bright to give high luminosity in the collider. ...

  8. Cerenkov Light

    SciTech Connect (OSTI)

    Slifer, Karl

    2013-06-13

    The bright blue glow from nuclear reactors is Cerenkov light. Karl Slifer describes how nuclear physicists can use this phenomenon to study the nucleus of the atom.

  9. Tianjin Sanan Optoelectronics Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    Co Ltd Place: Tianjin Municipality, China Product: Tianjin-based ultra-high brightness LED wafer and chip maker. References: Tianjin Sanan Optoelectronics Co Ltd1 This article...

  10. AquaLite Wuhan Di Yuan Optoelectronic | Open Energy Information

    Open Energy Info (EERE)

    Place: Wuhan, Hubei Province, China Zip: 430074 Product: High-power and high-brightness LED manufacturer. Coordinates: 30.572399, 114.279121 Show Map Loading map......

  11. Monmouth County, New Jersey: Energy Resources | Open Energy Informatio...

    Open Energy Info (EERE)

    Grove, New Jersey Oceanport, New Jersey Port Monmouth, New Jersey Ramtown, New Jersey Red Bank, New Jersey Roosevelt, New Jersey Rumson, New Jersey Sea Bright, New Jersey Sea...

  12. Press Pass - Press Releases

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

    sdahl@fnal.gov For Immediate Release Children's Science Adventures at Fermilab Offer Summer Fun - and Learning, Too BATAVIA, Illinois-Summertime is a bright season of...

  13. Ohio's 18th congressional district: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    Advanced Energy Registered Energy Companies in Ohio's 18th congressional district Alternative Liquid Fuels (ALF) Appalachian Advanced Energy Association Blight-to-Bright...

  14. MHK Technologies/Wave Energy Seawater Transmission WEST | Open...

    Open Energy Info (EERE)

    to achieve higher reliability at lower cost. When WEST is combined with Bright Energy Storage Technologies seafloor compressed air energy storage (CAES) system, the two enable...

  15. Nottingham Beijing Technology Ltd | Open Energy Information

    Open Energy Info (EERE)

    Municipality, China Zip: 100013 Product: String representation "Nottingham Tech ... ame brightness." is too long. Coordinates: 39.90601, 116.387909 Show Map Loading map......

  16. ALSNews Vol. 354

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

    Meeting From the ALS User Meeting Organizing Committee: The 2014 ALS User Meeting will focus on science enabled by high brightness, energy resolution, and spatial resolution. A...

  17. SSRL HEADLINES September 2005

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

    ring FELs, technology advances (accelerators, undulators, high brightness electron guns, diagnostics, detectors). A number of presentations were devoted to recent developments...

  18. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Quinn R. We describe a new FEL line-narrowing technique called distributed seeding (DS), using Si(111) Bragg crystal monochromators to enhance the spectral brightness of the...

  19. Tax Credits, Rebates & Savings | Department of Energy

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

    Bright Way to Heat Water Rebate The City of Ashland Conservation Division offers a solar water heating program to its residential electric customers who currently use an electric...

  20. Atmospheric Science Program Cumulus Humilis Aerosol Processing...

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

    aerosols - within and around them. Aerosols - particularly those associated with human activity - are thought to be changing the brightness, the lifetime, the amount of...

  1. Knox County, Ohio: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Subtype A. Registered Energy Companies in Knox County, Ohio Blight-to-Bright Replex Plastics Places in Knox County, Ohio Centerburg, Ohio Danville, Ohio Fredericktown, Ohio...

  2. Mount Vernon, Ohio: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Registered Energy Companies in Mount Vernon, Ohio Blight-to-Bright Replex Plastics References US Census Bureau Incorporated place and minor civil division...

  3. Tax Credits, Rebates & Savings | Department of Energy

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

    Bright Way to Heat Water Rebate The City of Ashland Conservation Division offers a solar water heating program to its residential electric customers who currently use an...

  4. Solar Thermal Success Stories - Energy Innovation Portal

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

    Success Stories 1 Success Stories Category Title and Abstract Company Laboratories Date Solar Thermal NREL and SkyFuel Partnership Reflects Bright Future for Solar Energy Huge ...

  5. 2009 Technology Transfer Awards

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

    ... a thallium doped sodium iodide, a doped cesium ... is pre- pared using fast, bright, rare-earth doped ... an actinide nitride fuel for nuclear reactors is provided. ...

  6. Central Activator Keeps the Circadian Clock Ticking

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

    addiction, and other health issues. Current treatment often focuses on resetting the wake-sleep cycle using behavior therapy, bright light therapy, and chronotherapy. The new model...

  7. Type Ia Supernova Hubble Residuals and Host-Galaxy Properties...

    Office of Scientific and Technical Information (OSTI)

    Kim et al. (2013) K13 introduced a new methodology for determining peak- brightness ... Resource Relation: Journal Name: Astrophysical Journal Research Org: Ernest Orlando ...

  8. Flexible Assembly Solar Technology- FY13 Q2

    Broader source: Energy.gov [DOE]

    This document summarizes the progress of this BrightSource project, funded by SunShot, for the first quarter of fiscal year 2013.

  9. shiren-98.pdf

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

    this figure, please see http:www.arm.govdocsdocumentstechnicalconf9803shiren-98.pdf.) Session Papers 695 brightness temperatures calculated with LBLRTM and SBDIR are very...

  10. Marshall Municipal Utilities- Commercial Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    MMU Customers may also participate in the Bright Energy Solutions commercial rebate program which is conducted by Missouri River Energy Services in conjuction with MMU. For more information,...

  11. NREL: Department of Defense Energy Programs Home Page

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

    white storage container with an inset photo of a shelving unit full of bright green batteries. Energy and Cost Savings Projects Take Off at Navy Installations NREL's field ...

  12. Microsoft Word - DOE-ID-13-033 NC State B1-31.doc

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

    3 SECTION A. Project Title: A Positron Generator System in Support of High Brightness Materials Characterization at the Pulstar Reactor - North Carolina State University SECTION B....

  13. Madison County, Indiana: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Indiana Bright Automotive Inc Places in Madison County, Indiana Alexandria, Indiana Anderson, Indiana Chesterfield, Indiana Country Club Heights, Indiana Edgewood, Indiana...

  14. ARM - Data Announcements Article

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

    Bookmark and Share An example plot from the MWRRET VAP for 1192007 at Black Forest, Germany: (top) Brightness temperatures measured by the microwave radiometer (MWR). Orange and...

  15. Superconducting microcircuitry by the microlithographic patterning of superconducting compounds and related materials

    DOE Patents [OSTI]

    Coppa, N.V.

    1993-08-24

    A method is described of producing superconducting microcircuits comprising the steps of: depositing a thin film of Ba[sub 2]Cu[sub 3]O[sub 5+x](O < x < 1) onto a substrate; depositing a thin film of a dopant onto said thin film of Ba[sub 2]Cu[sub 3]O[sub 5+x]; depositing a photoresist onto said thin film of a dopant; shining light through a mask containing a pattern for a desired circuit configuration and onto said photoresist; developing said photoresist to remove portions of said photoresist shined by the light and to selectively expose said dopant film; etching said selectively exposed dopant film from said thin film of Ba[sub 2]Cu[sub 3]O[sub 5+x] to form a pattern of dopant; and heating said substrate at a temperature and for a period of time sufficient to diffuse and react said pattern of dopant with said thin film of Ba[sub 2]Cu[sub 3]O[sub 5+x].

  16. Neutral beam dump with cathodic arc titanium gettering

    SciTech Connect (OSTI)

    Smirnov, A.; Korepanov, S. A.; Putvinski, S.; Krivenko, A. S.; Murakhtin, S. V.; Savkin, V. Ya.

    2011-03-15

    An incomplete neutral beam capture can degrade the plasma performance in neutral beam driven plasma machines. The beam dumps mitigating the shine-through beam recycling must entrap and retain large particle loads while maintaining the beam-exposed surfaces clean of the residual impurities. The cathodic arc gettering, which provides high evaporation rate coupled with a fast time response, is a powerful and versatile technique for depositing clean getter films in vacuum. A compact neutral beam dump utilizing the titanium arc gettering was developed for a field-reversed configuration plasma sustained by 1 MW, 20-40 keV neutral hydrogen beams. The titanium evaporator features a new improved design. The beam dump is capable of handling large pulsed gas loads, has a high sorption capacity, and is robust and reliable. With the beam particle flux density of 5 x 10{sup 17} H/(cm{sup 2}s) sustained for 3-10 ms, the beam recycling coefficient, defined as twice the ratio of the hydrogen molecular flux leaving the beam dump to the incident flux of high-energy neutral atoms, is {approx}0.7. The use of the beam dump allows us to significantly reduce the recycling of the shine-through neutral beam as well as to improve the vacuum conditions in the machine.

  17. Observation of objects under intense plasma background illumination

    SciTech Connect (OSTI)

    Buzhinsky, R. O.; Savransky, V. V.; Zemskov, K. I.; Isaev, A. A.; Buzhinsky, O. I.

    2010-12-15

    Experiments on the observation of a brightness-amplified image of an object through a masking arc discharge are presented. The copper-vapor laser active medium was used as an image brightness amplifier. It is shown that the image quality does not worsen under plasma background illumination.

  18. It's No Secret: Fifty-eight Years of National Security Programs at BNL (463rd Brookhaven Lecture)

    SciTech Connect (OSTI)

    Indusi, Joseph

    2010-11-17

    Prepare for a true tale of suspense and international intrigue. A tale that began in 1952, continued through the Cold War, and is not yet complete today. A tale of unexpected allies. Hear the true tale of one Laboratory’s efforts to keep nuclear materials out of the hands of evildoers. Freidlander. Higinbotham. Dodson. Kouts. And many more! See some of BNL’s all-star cast in the defining roles that shaped their careers as they worked toward keeping the nation and the world safe from the proliferation of nuclear weapons.

  19. Carl Gagliardi Modern Particle

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

    Carl Gagliardi Modern Particle Accelerators and Detectors A Household Survey Carl A. Gagliardi 2 Carl Gagliardi Alyson Clarke * High school All Star swimmer * My niece To do well in her sport, she really needs to know how to ACCELERATE 3 Carl Gagliardi Deena Greer * Physician * My wife To ACCELERATE healing, she needs to DETECT problems that are impossible to see 4 Carl Gagliardi How Do We Accelerate? Let's ask Alyson We drop things! 5 Carl Gagliardi How Do We "Drop" Particles? We can

  20. CC-inclusive cross section measured with the T2K near detector

    SciTech Connect (OSTI)

    Weber, Alfons

    2015-05-15

    T2K has performed the first measurement of muon neutrino inclusive charged current interactions on carbon at neutrino energies of ?1 GeV where the measurement is reported as a flux-averaged double differential cross section in muon momentum and angle. The flux is predicted by the beam Monte Carlo and external data, including the results from the NA61/SHINE experiment. The data used for this measurement were taken in 2010 and 2011, with a total of 1.08*10{sup 20} protons-on-target. The analysis is performed on 4485 inclusive charged current interaction candidates selected in the most upstream fine-grained scintillator detector of the near detector. The flux-averaged total cross section is = (6.910.13(stat)0.84(syst)) 10{sup ?39} cm{sup 2}/nucleon for a mean neutrino energy of 0.85 GeV.

  1. Method of noncontacting ultrasonic process monitoring

    DOE Patents [OSTI]

    Garcia, Gabriel V. (Las Cruces, NM); Walter, John B. (Ammon, ID); Telschow, Kenneth L. (Idaho Falls, ID)

    1992-01-01

    A method of monitoring a material during processing comprising the steps of (a) shining a detection light on the surface of a material; (b) generating ultrasonic waves at the surface of the material to cause a change in frequency of the detection light; (c) detecting a change in the frequency of the detection light at the surface of the material; (d) detecting said ultrasonic waves at the surface point of detection of the material; (e) measuring a change in the time elapsed from generating the ultrasonic waves at the surface of the material and return to the surface point of detection of the material, to determine the transit time; and (f) comparing the transit time to predetermined values to determine properties such as, density and the elastic quality of the material.

  2. Apparatus for sensing patterns of electrical field variations across a surface

    DOE Patents [OSTI]

    Warren, William L. (Arlington, VA); Devine, Roderick A. B. (Paris, FR)

    2001-01-01

    An array of nonvolatile field effect transistors used to sense electric potential variations. The transistors owe their nonvolatility to the movement of protons within the oxide layer that occurs only in response to an externally applied electric potential between the gate on one side of the oxide and the source/drain on the other side. The position of the protons within the oxide layer either creates or destroys a conducting channel in the adjacent source/channel/drain layer below it, the current in the channel being measured as the state of the nonvolatile memory. The protons can also be moved by potentials created by other instrumentalities, such as charges on fingerprints or styluses above the gates, pressure on a piezoelectric layer above the gates, light shining upon a photoconductive layer above the gates. The invention allows sensing of fingerprints, handwriting, and optical images, which are converted into digitized images thereof in a nonvolatile format.

  3. Grain alignment in starless cores

    SciTech Connect (OSTI)

    Jones, T. J.; Bagley, M. [Minnesota Institute for Astrophysics, University of Minnesota, Minneapolis, MN 55455 (United States); Krejny, M. [Cree Inc., 4600 Silicon Dr., Durham, NC (United States); Andersson, B.-G. [SOFIA Science Center, USRA, Moffett Field, CA (United States); Bastien, P., E-mail: tjj@astro.umn.edu [Centre de recherche en astrophysique du Qubec and Dpartment de Physique, Universit de Montral, Montral (Canada)

    2015-01-01

    We present near-IR polarimetry data of background stars shining through a selection of starless cores taken in the K band, probing visual extinctions up to A{sub V}?48. We find that P{sub K}/?{sub K} continues to decline with increasing A{sub V} with a power law slope of roughly ?0.5. Examination of published submillimeter (submm) polarimetry of starless cores suggests that by A{sub V}?20 the slope for P versus ? becomes ??1, indicating no grain alignment at greater optical depths. Combining these two data sets, we find good evidence that, in the absence of a central illuminating source, the dust grains in dense molecular cloud cores with no internal radiation source cease to become aligned with the local magnetic field at optical depths greater than A{sub V}?20. A simple model relating the alignment efficiency to the optical depth into the cloud reproduces the observations well.

  4. Light absorption cell combining variable path and length pump

    DOE Patents [OSTI]

    Prather, W.S.

    1993-12-07

    A device is described for use in making spectrophotometric measurements of fluid samples. In particular, the device is a measurement cell containing a movable and a fixed lens with a sample of the fluid there between and through which light shines. The cell is connected to a source of light and a spectrophotometer via optic fibers. Movement of the lens varies the path length and also pumps the fluid into and out of the cell. Unidirectional inlet and exit valves cooperate with the movable lens to assure a one-way flow of fluid through the cell. A linear stepper motor controls the movement of the lens and cycles it from a first position closer to the fixed lens and a second position farther from the fixed lens, preferably at least 10 times per minute for a nearly continuous stream of absorption spectrum data. 2 figures.

  5. Constraints on decaying dark matter from Fermi observations of nearby galaxies and clusters

    SciTech Connect (OSTI)

    Dugger, Leanna; Profumo, Stefano [Department of Astronomy and Department of Physics, University of California Berkeley, 601 Campbell Hall, Berkeley, CA (United States); Jeltema, Tesla E., E-mail: greentee01@gmail.com, E-mail: tesla@ucolick.org, E-mail: profumo@scipp.ucsc.edu [UCO/Lick Observatories, 1156 High St., Santa Cruz, CA 95064 (United States)

    2010-12-01

    We analyze the impact of Fermi gamma-ray observations (primarily non-detections) of selected nearby galaxies, including dwarf spheroidals, and of clusters of galaxies on decaying dark matter models. We show that the fact that galaxy clusters do not shine in gamma rays puts the most stringent limits available to-date on the lifetime of dark matter particles for a wide range of particle masses and decay final states. In particular, our results put strong constraints on the possibility of ascribing to decaying dark matter both the increasing positron fraction reported by PAMELA and the high-energy feature in the electron-positron spectrum measured by Fermi. Observations of nearby dwarf galaxies and of the Andromeda Galaxy (M31) do not provide as strong limits as those from galaxy clusters, while still improving on previous constraints in some cases.

  6. Light absorption cell combining variable path and length pump

    DOE Patents [OSTI]

    Prather, William S. (2419 Dickey Rd., Augusta, GA 30906)

    1993-01-01

    A device for use in making spectrophotometric measurements of fluid samples. In particular, the device is a measurement cell containing a movable and a fixed lens with a sample of the fluid therebetween and through which light shines. The cell is connected to a source of light and a spectrophotometer via optic fibers. Movement of the lens varies the path length and also pumps the fluid into and out of the cell. Unidirectional inlet and exit valves cooperate with the movable lens to assure a one-way flow of fluid through the cell. A linear stepper motor controls the movement of the lens and cycles it from a first position closer to the fixed lens and a second position farther from the fixed lens, preferably at least 10 times per minute for a nearly continuous stream of absorption spectrum data.

  7. Centrifugal contactor operations for UREX process flowsheet. An update

    SciTech Connect (OSTI)

    Pereira, Candido; Vandegrift, George F.

    2014-08-01

    The uranium extraction (UREX) process separates uranium, technetium, and a fraction of the iodine from the other components of the irradiated fuel in nitric acid solution. In May 2012, the time, material, and footprint requirements for treatment of 260 L batches of a solution containing 130 g-U/L were evaluated for two commercial annular centrifugal contactors from CINC Industries. These calculated values were based on the expected volume and concentration of fuel arising from treatment of a single target solution vessel (TSV). The general conclusions of that report were that a CINC V-2 contactor would occupy a footprint of 3.2 m 2 (0.25 m x 15 m) if each stage required twice the nominal footprint of an individual stage, and approximately 1,131 minutes or nearly 19 hours is required to process all of the feed solution. A CINC V-5 would require approximately 9.9 m 2 (0.4 m x 25 m) of floor space but would require only 182 minutes or ~ 3 hours to process the spent target solution. Subsequent comparison with the Modular Caustic Side Solvent Extraction Unit (MCU) at Savannah River Site (SRS) in October 2013 suggested that a more compact arrangement is feasible, and the linear dimension for the CINC V-5 may be reduced to about 8 m; a comparable reduction for the CINC V-2 yields a length of 5 m. That report also described an intermediate-scale (10 cm) contactor design developed by Argonne in the early 1980s that would better align with the SHINE operations as they stood in May 2012. In this report, we revisit the previous evaluation of contactor operations after discussions with CINC Industries and analysis of the SHINE process flow diagrams for the cleanup of the TSV, which were not available at the time of the first assessment.

  8. Mechanical design and fabrication of the VHF-gun, the Berkeley

    Office of Scientific and Technical Information (OSTI)

    normal-conducting continuous-wave high-brightness electron source (Journal Article) | SciTech Connect Mechanical design and fabrication of the VHF-gun, the Berkeley normal-conducting continuous-wave high-brightness electron source Citation Details In-Document Search This content will become publicly available on February 17, 2017 Title: Mechanical design and fabrication of the VHF-gun, the Berkeley normal-conducting continuous-wave high-brightness electron source Authors: Wells, R. P. [1]

  9. Five Ways SLAC's X-ray Laser Can Change the Way We Live: 'The First Five

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

    Years' Points to a Bright Future of High-impact Discovery at LCLS | Department of Energy Five Ways SLAC's X-ray Laser Can Change the Way We Live: 'The First Five Years' Points to a Bright Future of High-impact Discovery at LCLS Five Ways SLAC's X-ray Laser Can Change the Way We Live: 'The First Five Years' Points to a Bright Future of High-impact Discovery at LCLS March 11, 2016 - 11:29am Addthis News release from SLAC National Accelerator Laboratory, March 9, 2016 If you've ever stood in a

  10. EWEB- Residential Solar Water Heating Loan Program

    Broader source: Energy.gov [DOE]

    Eugene Water & Electric Board (EWEB) offers residential customers a loan and cash discount program called, "The Bright Way To Heat Water." The program is designed to promote the installation of...

  11. A New Light on Disordered Ensembles

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

    be to exploit the billionfold increase in peak brightness provided by an x-ray free-electron laser, due to which it may be possible to detect meaningful signals from single...

  12. Quantum fluctuations in beam dynamics.

    SciTech Connect (OSTI)

    Kim, K.-J.

    1998-06-04

    Quantum effects could become important for particle and photon beams used in high-luminosity and high brightness applications in the current and next generation accelerators and radiation sources. This paper is a review of some of these effects.

  13. ALSNews Vol. 339

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

    Black Gold: Enabling Bright, High Rep-Rate Electron Beams Searching for the Solar System's Chemical Recipe A Dual Look at Photosystem II Using the World's Most Powerful X-Ray Laser...

  14. Record 18 teams prepare for Virginia Regional Middle School Science...

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

    MEDIA ADVISORY: News Media invited to cover the March 10 Virginia Regional Middle School Science Bowl at Jefferson Lab; Record turnout with bright young minds from 18 teams vying...

  15. Quiz: Test Your Lighting IQ | Department of Energy

    Office of Environmental Management (EM)

    Quiz: Test Your Lighting IQ Quiz: Test Your Lighting IQ March 23, 2016 - 12:40pm Addthis Quiz: Test Your Lighting IQ How bright are you when it comes to lighting trivia? Test your ...

  16. Quiz: Test Your Lighting IQ | Department of Energy

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

    Quiz: Test Your Lighting IQ How bright are you when it comes to lighting trivia? Test your knowledge with this fun quiz 1. How do LEDs generate light? By heating up filament By ...

  17. Research Update: Interface-engineered oxygen octahedral tilts...

    Office of Scientific and Technical Information (OSTI)

    Our state-of-the-art annular bright-field imaging in aberration-corrected scanning transmission electron microscopy revealed that the RuOsub 6 octahedral distortions in the ...

  18. AN OBSERVED CORRELATION BETWEEN THERMAL AND NON-THERMAL EMISSION...

    Office of Scientific and Technical Information (OSTI)

    Through an analysis of six bright Fermi GRBs, we have discovered a correlation between the ... varies from GRB to GRB. We present an interpretation in which the value of the index ...

  19. Sweetspot: Near-infrared observations of 13 type Ia supernovae...

    Office of Scientific and Technical Information (OSTI)

    With only one to three points per light curve and a prior on the time of maximum from the ... These observations continue to demonstrate the improved standard brightness of SNe Ia in ...

  20. 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...

  1. Salem Electric- Solar Water Heater Rebate

    Broader source: Energy.gov [DOE]

    Salem Electric residential customers with electric water heating are eligible for a $600 rebate through Salem's Bright Way program. A program brochure with details is available on the program...

  2. Fermi-LAT and Suzaku Observations of the Radio Galaxy Centaurus...

    Office of Scientific and Technical Information (OSTI)

    that it is an artifact due to incorrect modeling of the bright Galactic diffuse emission in the region. The LAT image provides a weak hint of a spatial extension of the...

  3. TITLE AUTHORS SUBJECT SUBJECT RELATED DESCRIPTION PUBLISHER AVAILABILI...

    Office of Scientific and Technical Information (OSTI)

    that it is an artifact due to incorrect modeling of the bright Galactic diffuse emission in the region The LAT image provides a weak hint of a spatial extension of the gamma...

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

    Office of Scientific and Technical Information (OSTI)

    that it is an artifact due to incorrect modeling of the bright Galactic diffuse emission in the region. The LAT image provides a weak hint of a spatial extension of the...

  5. School Energy Survey Student Guide

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

    of 40 new power plants. INCANDESCENT BULB HALOGEN COMPACT FLUORESCENT (CFL) LIGHT EMITTING DIODE (LED) Brightness 850 lumens 850 lumens 850 lumens 850 lumens Life of Bulb 1,000...

  6. Science in St. Louis | Dr. Himadri Pakrasi | Photosynthetic Antenna...

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

    Himadri Pakrasi Engineering Biology and Energy from the Sun: the future is bright for food, feed, and fuels October 13, 2015 - 7:00pm Florissant Valley Branch, St. Louis County...

  7. 1:30 - 1:45

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

    4:30 - 5:00 J. Miao, Stanford Synchrotron Radiation Laboratory Single Particle X-ray Diffraction: the Present and the Future 5:00 - 5:30 Discussion What can bright X-ray sources...

  8. A Spatially Resolving X-ray Crystal Spectrometer for Measurement...

    Office of Scientific and Technical Information (OSTI)

    for Measurement of Ion-temperature and Rotation-velocity ... prepared as an account of work sponsored by an agency of ... Relative line brightness is inferred from the area of the ...

  9. Energy 101: Lumens

    ScienceCinema (OSTI)

    None

    2013-05-29

    Description: In this edition of Energy 101, we talk about Lumens. When you're shopping for light bulbs, compare lumens to be sure you're getting the amount of light, or level of brightness, you want.

  10. Development and Industrialization of InGaN/GaN LEDs on Patterned...

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

    Project Impact This approach has the potential to reduce the cost of high-brightness LED lamps and modules targeted across a wide range of lighting and illumination applications. ...

  11. ARM - VAP Product - gvr

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

    count sky3 ( time ) 183.3 +- 7 GHz sky signal count sky7 ( time ) 183.3 +- 14 GHz sky signal count sky14 ( time ) Microwave narrowband brightness temperature 183.3 +- 1 GHz...

  12. Microwave Radiometer-High Frequency (MWRHF) Handbook

    SciTech Connect (OSTI)

    Caddedu, MP

    2011-03-17

    The 90/150-GHz Vapor Radiometer provides time-series measurements of brightness temperatures from two channels centered at 90 and 150 GHz. These two channels are sensitive to the presence of liquid water and precipitable water vapor.

  13. Microsoft Word - Fermi First Light Review_Final Corrections.doc

    Office of Scientific and Technical Information (OSTI)

    The 3 rd EGRET Catalog (Hartman et al 1999) of 271 sources consists of the single 1991 solar flare bright enough to be detected as a source, the Large Magellanic Cloud (LMC),...

  14. 2013 - Photons & Fusion Newsletter

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

    Transfer Described NIF&PS Team Helps Make Holidays Bright TeamNIF Members Receive Lean Six Sigma Certification NIF Visitors: Energy Secretary Ernest Moniz and members of the...

  15. FINAL LAYOUT_ 7-24-13dp.indd

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

    ... is notable for its use of genetic engineering methods combined with the engineering ... Bright-field (left) and dark-field (right) images of tissue-cultured neurons, where the ...

  16. Press Pass - Press Releases

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

    Office, 630-840-3094, sdahl@fnal.gov Children's Science Adventures at Fermilab Offer Summer Fun - and Learning, Too BATAVIA, Illinois-Summertime is a bright season of...

  17. Dr. Himadri Pakrasi | Photosynthetic Antenna Research Center

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

    Dr. Himadri Pakrasi October 20, 2015 Dr. Himadri Pakrasi Engineering Biology and Energy from the Sun: the future is bright for food, feed, and fuels News/Media Videos

  18. Indian Energy Blog Archive | Department of Energy

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

    Paiutes is working on a second 150-MW project that would use both PV and concentrated solar technologies to generate power for the Tribe. Photo from Moapa Band of Paiutes. Bright...

  19. Flexible Assembly Solar Technology (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-10-01

    BrightSource Energy is one of the 2012 SunShot CSP R&D awardees for their advanced collectors. This fact sheet explains the motivation, description, and impact of the project.

  20. ALSNews Vol. 314

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

    of the USB, and updates on the water-cooling tower, controls, and brightness upgrades in progress. Zahid Hussain updated users on MERLIN, ARPES' new VLS spectrometer that is...

  1. Winter Storms

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

    time to make the holidays bright. Remembering the joy winter brought us when we were children might help us cope with the hazards and inconvenience of the season, but we can't...

  2. Slide08 | OSTI, US Dept of Energy, Office of Scientific and Technical...

    Office of Scientific and Technical Information (OSTI)

    Dark archives are far less expensive to operate and maintain than bright archives, which need to have the interface and support necessary to make them user-friendly. For docs ...

  3. ARM - Publications: Science Team Meeting Documents

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

    the context of the ARM dataset covering a three-year period from 1996 to 1998. A detailed error analysis for the forward model brightness temperatures at 23.8 GHz and 31.4 GHz has...

  4. SSRL HEADLINES May 2002

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

    (LCLS), which will produce ultra-bright, ultra-short coherent x-rays. The first DOE "Lehman Review" in April of the technical, manpower, schedule and cost of the project went...

  5. Plasmonic giant quantum dots: Hybrid nanostructures for truly...

    Office of Scientific and Technical Information (OSTI)

    We show here that photostable 'giant' quantum dots when placed at the center of an ultrathin gold shell retain their key optical property of bright and blinking-free ...

  6. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    ... We show here that photostable 'giant' quantum dots when placed at the center of an ultrathin gold shellmore retain their key optical property of bright and blinking-free ...

  7. CX-011586: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    A Positron Generator System in Support of High Brightness Materials Characterization at the Pulstar Reactor CX(s) Applied: B1.31 Date: 11/05/2013 Location(s): North Carolina Offices(s): Idaho Operations Office

  8. Suppression of Tla1 gene expression for improved solar conversion efficiency and photosynthetic productivity in plants and algae

    DOE Patents [OSTI]

    Melis, Anastasios; Mitra, Mautusi

    2010-06-29

    The invention provides method and compositions to minimize the chlorophyll antenna size of photosynthesis by decreasing TLA1 gene expression, thereby improving solar conversion efficiencies and photosynthetic productivity in plants, e.g., green microalgae, under bright sunlight conditions.

  9. Genomic Sequence of a Marine Blooming Alga | U.S. DOE Office...

    Office of Science (SC) Website

    Biological and Environmental Research U.S. Department of Energy SC-23Germantown Building ... bloom in the Barents Sea north of Russia, their scales giving off a bright green glow. ...

  10. News Item

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

    These ultra-tiny but ultra-bright nanoprobes should be a big asset for biological imaging, especially deep-tissue optical imaging of neurons in the brain. The multidisciplinary ...

  11. EcoCar Drives Students to Innovate

    Office of Energy Efficiency and Renewable Energy (EERE)

    Teams from 16 North American universities are competing to design a fuel-efficient vehicle that minimizes emissions while maximizing consumer appeal, safety and performance. I recently had the chance to spend time with these bright and enthusiastic students.

  12. Type Ia Supernovae Project at NERSC

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

    of star called a white dwarf. The majority of SN Ia explosions occur far away from our galaxy; yet, due to their enormous intrinsic brightness, outshining billions of stars, we can...

  13. NERSC In the News

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

    | Author(s): Timothy Stenovec | Source: Huffington Post | Supernova Burns Bright in a Galaxy Not So Far Away September 7, 2011 | Author(s): Jeffrey Brown | Source: PBS News Hour |...

  14. Core-Collapse Supernovae Project at NERSC

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

    of the rest of the visible universe. The output in light can rival that of an entire galaxy. An event on the other side of our galaxy would be as bright as the sun. Corecollapse...

  15. 1

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

    Modeling of Brightness Fields of Ice-Crystal Broken Clouds A. G. Petrushin Institute of Experimental Meteorology Obninsk, Russia T. B. Zhuravleva Institute of Atmospheric Optics Tomsk, Russia Introduction The real clouds are highly variable in space; therefore, the radiative transfer modeling of fluxes and brightness fields of the atmosphere-an underlying surface system, must account for cloud field structure on much smaller scales than the resolution of the atmospheric general circulation

  16. ARM - Publications: Science Team Meeting Documents

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

    Some Results of the Comparison of the Solar Almucantar Sky Brightness Observed Under the Cirri Conditions and the Calculated One Petrushin, A.G.(b), Shukurov, A.K.(a), Shukurov, K.A.(a), and Golitsyn, G.S.(a), A.M. Obukhov Institute of Atmospheric Physics, RAS (a), Institute of Experimental Meteorology, NPO "Typhoon" (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The selected measurements of the solar almucantar sky brightness were carried out at the

  17. Accelerator physics and modeling: Proceedings

    SciTech Connect (OSTI)

    Parsa, Z.

    1991-12-31

    This report contains papers on the following topics: Physics of high brightness beams; radio frequency beam conditioner for fast-wave free-electron generators of coherent radiation; wake-field and space-charge effects on high brightness beams. Calculations and measured results for BNL-ATF; non-linear orbit theory and accelerator design; general problems of modeling for accelerators; development and application of dispersive soft ferrite models for time-domain simulation; and bunch lengthening in the SLC damping rings.

  18. Accelerator physics and modeling: Proceedings

    SciTech Connect (OSTI)

    Parsa, Z.

    1991-01-01

    This report contains papers on the following topics: Physics of high brightness beams; radio frequency beam conditioner for fast-wave free-electron generators of coherent radiation; wake-field and space-charge effects on high brightness beams. Calculations and measured results for BNL-ATF; non-linear orbit theory and accelerator design; general problems of modeling for accelerators; development and application of dispersive soft ferrite models for time-domain simulation; and bunch lengthening in the SLC damping rings.

  19. Carlsten named IEEE Fellow

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

    Carlsten named IEEE Fellow Carlsten named IEEE Fellow Bruce Carlsten is a pioneer in the production and use of high-brightness electron beams. February 11, 2016 Bruce Carlsten Bruce Carlsten Communications Office (505) 667-7000 IEEE cited him "for contributions to high-brightness electron beams and vacuum electron devices." The Institute of Electrical and Electronics Engineers (IEEE) has honored Bruce Carlsten of LANL's Accelerator Operations and Technology group with the title of

  20. The Clean Energy Economy in Three Charts | Department of Energy

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

    The Clean Energy Economy in Three Charts The Clean Energy Economy in Three Charts January 6, 2014 - 5:55pm Addthis The Clean Energy Economy in Three Charts The Clean Energy Economy in Three Charts The Clean Energy Economy in Three Charts America's cleantech industry has a bright -- and growing -- future. America's cleantech industry has a bright -- and growing -- future. The Clean Energy Economy in Three Charts The Clean Energy Economy in Three Charts The Clean Energy Economy in Three Charts