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  1. Windsor, Connecticut: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    district.12 Registered Energy Companies in Windsor, Connecticut Infinity Fuel Cell and Hydrogen Inc References US Census Bureau Incorporated place and minor...

  2. West Windsor, Vermont: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    "alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":"" Hide Map West Windsor is a town in Windsor County, Vermont. It falls under Vermont's At-large...

  3. Anthony Kathryn Hall | Open Energy Information

    Open Energy Info (EERE)

    Anthony Kathryn Hall Jump to: navigation, search Name: Anthony & Kathryn Hall Place: United Kingdom Sector: Wind energy Product: UK-based private wind farm in Highland. References:...

  4. View Park-Windsor Hills, California: Energy Resources | Open...

    Open Energy Info (EERE)

    Park-Windsor Hills, California: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 33.9929545, -118.3491169 Show Map Loading map......

  5. South Windsor, Connecticut: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    South Windsor, Connecticut: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 41.8489872, -72.5717551 Show Map Loading map......

  6. Windsor Locks, Connecticut: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Windsor Locks, Connecticut: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 41.9292639, -72.6273123 Show Map Loading map......

  7. Windsor Heights, Iowa: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    article is a stub. You can help OpenEI by expanding it. Windsor Heights is a city in Polk County, Iowa. It falls under Iowa's 3rd congressional district.12 References US...

  8. Windsor, South Carolina: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Map This article is a stub. You can help OpenEI by expanding it. Windsor is a town in Aiken County, South Carolina. It falls under South Carolina's 2nd congressional...

  9. Proceedings of the 1996 Windsor workshop on alternative fuels

    SciTech Connect (OSTI)

    1996-10-01

    This document contains information which was presented at the 1996 Windsor Workshop on Alternative Fuels. Topics include: international links; industry topics and infrastructure issues; propane; engine developments; the cleanliness of alternative fuels; heavy duty alternative fuel engines; California zev commercialization efforts; and in-use experience.

  10. Type B Accident Investigation Board Report of the July 7, 1997, Industrial Accident at the Knolls Atomic Power Laboratory Windsor Site, Windsor, Connecticut

    Broader source: Energy.gov [DOE]

    On Monday, July 7, 1997, at approximately 10:47 a. m., an asbestos abatement subcontractor laborer working at the Knolls Atomic Power Laboratory-Windsor Site stepped on and fell backward through an unprotected rooftop skylight in the northwest quadrant of Building 5 (see Figure #1).

  11. West Windsor-Plainsboro South High School & William Annin Middle School

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

    Virginia win N.J. Regional Science Bowl at PPPL | Princeton Plasma Physics Lab

    West Windsor-Plainsboro South High School & William Annin Middle School win N.J. Regional Science Bowl at PPPL Top science whizzes will go to national contest in Washington, D.C. By Jeanne Jackson DeVoe February 23, 2016 Tweet Widget Google Plus One Share on Facebook The West Windsor-Plainsboro South High School team buzzes in an answer as they compete against Millburn High School in Round 12 of the New

  12. West Windsor-Plainsboro High School South wins regional Science Bowl at

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

    PPPL | Princeton Plasma Physics Lab West Windsor-Plainsboro High School South wins regional Science Bowl at PPPL A dramatic ending to High School Bowl sends local team to nationals By Jeanne Jackson DeVoe February 25, 2013 Tweet Widget Google Plus One Share on Facebook Next stop Washington DC: Members of the West Windsor-Plainsboro High School South team pose after winning the New Jersey Regional Science Bowl at the Princeton Plasma Physics Laboratory on Feb. 23. From left to right: Coach

  13. West Windsor-Plainsboro High School South wins regional Science Bowl at

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

    PPPL | Princeton Plasma Physics Lab West Windsor-Plainsboro High School South wins regional Science Bowl at PPPL By Jeanne Jackson DeVoe February 25, 2013 Tweet Widget Google Plus One Share on Facebook Next stop Washington DC: Members of the West Windsor-Plainsboro High School South team pose after winning the New Jersey Regional Science Bowl at the Princeton Plasma Physics Laboratory on Feb. 23. From left to right: Coach Sunila Sharma, Arnav Sood, Chaitanya Asawa, Team Captain Alexander

  14. CX-005346: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Geothermal Incentive Program - South Windsor Kingdom Hall of Jehovah's WitnessesCX(s) Applied: B5.1Date: 03/02/2011Location(s): South Windsor, ConnecticutOffice(s): Energy Efficiency and Renewable Energy, National Energy Technology Laboratory

  15. The Hall

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

    Hall dynamo effect and nonlinear mode coupling during sawtooth magnetic reconnection W. X. Ding, 1,2 D. L. Brower, 1,2 B. H. Deng, 1 A. F. Almagri, 2,3 D. Craig, 2,3 G. Fiksel, 2,3 V. Mirnov, 2,3 S. C. Prager, 2,3 J. S. Sarff, 2,3 and V. Svidzinski 2,3 1 Electrical Engineering Department, University of California at Los Angeles, Los Angeles, California 90095 2 Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas, University of Wisconsin-Madison, Madison, Wisconsin 53706

  16. Fermilab Wilson Hall and Vicinity

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

    Wilson Hall and Vicinity Wilson Hall Ramsey Auditorium Booster Linac Antiproton Source Leon M. Lederman Science Education Center...

  17. Good Energies (United Kingdom) | Open Energy Information

    Open Energy Info (EERE)

    Energies (United Kingdom) Jump to: navigation, search Logo: Good Energies (United Kingdom) Name: Good Energies (United Kingdom) Address: 2-5 Old Bond Street Place: London, United...

  18. CONFIRMATORY SURVEY RESULTS FOR PORTIONS OF THE ABB COMBUSTION ENGINEERING SITE IN WINDSOR, CONNECTICUT DURING THE FALL OF 2011

    SciTech Connect (OSTI)

    Wade C. Adams

    2011-12-09

    From the mid-1950s until mid-2000, the Combustion Engineering, Inc. (CE) site in Windsor, Connecticut (Figure A-1) was involved in the research, development, engineering, production, and servicing of nuclear fuels, systems, and services. The site is currently undergoing decommissioning that will lead to license termination and unrestricted release in accordance with the requirements of the License Termination Rule in 10 CFR Part 20, Subpart E. Asea Brown Boveri Incorporated (ABB) has been decommissioning the CE site since 2001.

  19. Jefferson Lab Experimental Hall D

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

    D Privacy and Security Notice Skip over navigation search Group This site's design is only visible in a graphical browser that supports web standards, but its content is accessible to any browser. Concerns? Hall D Navigation Hall D Main Hall D Engineering Hall D Staff Hall D Safety print version Hall D in October 2014 Related Links CEBAF at 12 GEV JLab Visitor's Center JLab Virtual Tour JLab page for scientists Experimental Hall A Experimental Hall B Experimental Hall C Hall D Task List - HDList

  20. Mary Hall Salishan

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

    From Hall et al, "Maximizing Multiprocessor Performance with the SUIF Compiler", IEEE Computer, Dec. 1996. 50% higher Specfp95 ratio than previously reported 3 1990s View *...

  1. Hall A Annual Report 2013

    SciTech Connect (OSTI)

    Dalton, Mark M.

    2014-02-01

    Report over the experimental activities in Hall A at Thomas Jefferson National Accelerator Facility during 2013.

  2. Hall Ammendment Policy

    Broader source: Energy.gov [DOE]

    Joint statement providing interim policy on processing proposals for leasing DOE real property using the authority in 42 U.S.C. 7256, commonly referred to as the "Hall Amendment."

  3. Kingdom Community Wind | Open Energy Information

    Open Energy Info (EERE)

    search Name Kingdom Community Wind Facility Kingdom Community Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Green Mountain...

  4. Jefferson Lab Experimental Hall B

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

    Hall B Privacy and Security Notice Skip over navigation search Group Please upgrade your browser. This site's design is only visible in a graphical browser that supports web standards, but its content is accessible to any browser. Concerns? Hall B Navigation Hall B Main CLAS CLAS12 Other Expts Run Info Publications Public Interest print version Hall B Main CLAS Collaboration and Hall B CLAS Collaboration Information Phonebook, Opt-in, and Database Reviews and Service Work Login Working Groups

  5. Unconventional Quantum Hall Effect and Tunable Spin Hall Effect...

    Office of Scientific and Technical Information (OSTI)

    to an Isolated MoS2 Trilayer Title: Unconventional Quantum Hall Effect and Tunable Spin Hall Effect in Dirac Materials: Application to an Isolated MoS2 Trilayer Authors: Li, ...

  6. Directions to Wilson Hall, Fermilab

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

    Directions Both the Fermilab box office and Ramsey Auditorium are located in Wilson Hall, the central laboratory building of Fermi National Accelerator Laboratory, as shown on the map below. Ramsey Auditorium is located at the south end of Wilson Hall. Enter through the Auditorium lobby doors on the ground level at the south end of Wilson Hall. Wilson Hall is clearly visible from the Pine Street entrance. From I-88, exit north at Farnsworth, which becomes Kirk north of Butterfield road. We also

  7. Experimental Hall C | Jefferson Lab

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

    C Jefferson Lab has four experimental halls. Hall C is 150 feet in diameter and 60 feet tall. Hall C houses a High Momentum Spectrometer and provides space for large-installation experiments. These are stand-alone experiments requiring unique or highly specialized detectors, magnets and targeting systems. The research equipment in Hall C is used to study the weak charge of the proton, form factors of simple quark systems, the transition from hadrons to quarks and nuclei with a strange quark

  8. Experimental Hall A | Jefferson Lab

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

    A Jefferson Lab has four experimental halls. Hall A is the largest of these four experimental staging areas. It is 174 feet across and 80 feet tall from the floor to the highest spot on its domed ceiling. The foundation for the hall is 35 feet below ground. Hall A is outfitted with two primary detector systems - both high-resolution spectrometers, each weighing about 3 million pounds or 1,500 short tons. The hall is used primarily for experiments that study the structure of the nucleus and the

  9. WORKFORCE DIVERSITY TOWN HALL

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

    WORKFORCE DIVERSITY TOWN HALL DECEMBER 6, 2011 1:00-2:00 PM FORRESTAL MAIN AUDITORIUM (BROADCAST TO ALL SITES) F O C U S M I S S I O N L E A R N I N G C O N T I N U A L DIVERSITY AND INCLUSION A C C O U N T A B I L I T Y WORKFORCE DIVERSITY TOWN HALL "When any of our citizens are unable to fulfll their potential due to the factors that have nothing to do with their talent, character, or work ethic, then I believe there's a role for government to play." President Barack Obama "I

  10. Cylindrical geometry hall thruster

    DOE Patents [OSTI]

    Raitses, Yevgeny; Fisch, Nathaniel J.

    2002-01-01

    An apparatus and method for thrusting plasma, utilizing a Hall thruster with a cylindrical geometry, wherein ions are accelerated in substantially the axial direction. The apparatus is suitable for operation at low power. It employs small size thruster components, including a ceramic channel, with the center pole piece of the conventional annular design thruster eliminated or greatly reduced. Efficient operation is accomplished through magnetic fields with a substantial radial component. The propellant gas is ionized at an optimal location in the thruster. A further improvement is accomplished by segmented electrodes, which produce localized voltage drops within the thruster at optimally prescribed locations. The apparatus differs from a conventional Hall thruster, which has an annular geometry, not well suited to scaling to small size, because the small size for an annular design has a great deal of surface area relative to the volume.

  11. ARM - Welcome to Study Hall

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

    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 ...

  12. Experimental Hall B | Jefferson Lab

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

    B Jefferson Lab has four experimental halls. Hall B is the smallest of the experimental staging areas. It is 98 feet in diameter and 65 feet from floor to ceiling. Experiments that take data in Hall B employ beams of either electrons or photons. From 1995 to 2012, the heart of the Hall B physics program involved the use of the CEBAF Large Acceptance Spectrometer, or CLAS. This detector system spanned nearly the full angular range about the target and was specifically developed for the study of

  13. Experimental Hall D | Jefferson Lab

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

    D A fourth experimental hall, known as Hall D, is currently under construction and is scheduled to begin experiments in 2015. The Hall D project consists of an extension to the accelerator tunnel to house a new beam transport line, a dedicated magnet to tag photons created in beam-target interactions, a counting house, cryogenics plant and service buildings. When it is completed, Hall D will make it possible for scientists to study what are known as exotic mesons or hybrids. You can learn more

  14. Experimental Hall B | Jefferson Lab

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

    and electromagnetic calorimeters for electron and neutral particle identification. Major research programs in Hall B include experiments to measure the spectrum of excited ...

  15. Town Hall Questions Answered

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

    8, 2014 CBFO Manager's weekly update to local residents Read Carlsbad Field Office Manager Joe Franco's letter to Eddy and Lea County residents for the week of April 14: at http://1.usa.gov/1mkxm7b Town Hall Questions Answered Q. What is the condition of Panel 7 right now? A. Work teams entering the underground facility as part of ongoing Phase 3 activities are still working to determine the full condition of Panel 7. Initial entries indicate good roof conditions. Q. What's the presumed reason

  16. QER- Comment of Addison Hall

    Broader source: Energy.gov [DOE]

    I and my family own land in Ashfield next to the proposed Kinder Morgan/Tennessee Pipeline route. We are opposed to the pipeline for a variety of reasons, including the highly questionable need for the proposed commodity increase and the inevitable damage to the environment and communities along the proposed route. Addison Hall for the Hall Family Trust.

  17. Experimental Hall C | Jefferson Lab

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

    in Hall C is used to study the weak charge of the proton, form factors of simple quark systems, the transition from hadrons to quarks and nuclei with a strange quark embedded....

  18. Sec. Chu Online Town Hall

    Broader source: Energy.gov [DOE]

    Secretary Steven Chu hosted an online town hall to discuss the clean energy and innovation agenda President Obama laid out in his 2011 State of the Union address. (January 26, 2011)

  19. Science and Energy Town Hall

    Broader source: Energy.gov [DOE]

    Watch a live broadcast of the Science & Energy Town Hall on Wednesday, January 20, 2016 from 2:30 p.m. to 3:30 p.m. EST.

  20. Dursley, United Kingdom: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    United Kingdom. Registered Energy Companies in Dursley, United Kingdom Hermes Energy Services Retrieved from "http:en.openei.orgwindex.php?titleDursley,United...

  1. United Kingdom Department of Energy and Climate Change (DECC...

    Open Energy Info (EERE)

    Department of Energy and Climate Change (DECC) Jump to: navigation, search Logo: United Kingdom Department for Energy and Climate Change (DECC) Name: United Kingdom Department for...

  2. Nuclear Decommissioning Authority of the United Kingdom NDA ...

    Open Energy Info (EERE)

    Decommissioning Authority of the United Kingdom NDA Jump to: navigation, search Name: Nuclear Decommissioning Authority of the United Kingdom (NDA) Place: Cumbria, England, United...

  3. BeyWatch (Smart Grid Project) (United Kingdom) | Open Energy...

    Open Energy Info (EERE)

    United Kingdom) Jump to: navigation, search Project Name BeyWatch Country United Kingdom Coordinates 55.378052, -3.435973 Loading map... "minzoom":false,"mappingservice":"goog...

  4. United Kingdom Low Carbon Transition Plan | Open Energy Information

    Open Energy Info (EERE)

    Low Carbon Transition Plan Jump to: navigation, search Tool Summary LAUNCH TOOL Name: United Kingdom Low Carbon Transition Plan AgencyCompany Organization: United Kingdom...

  5. Jefferson Lab Experimental Hall C

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

    C Privacy and Security Notice Skip over navigation search Group This site's design is only visible in a graphical browser that supports web standards, but its content is accessible to any browser. Concerns? Hall C Navigation Users Public Interest print version HES, HKS and Splitter Qweak spectrometer used to measure proton weak charge 12 GeV Upgrade Upgrade information 12 GeV Experiments SHMS-HMS User's Group User's Group mailing list Newsletter 12 GeV wiki Hall C Collaboration Information

  6. Town Hall meeting | OpenEI Community

    Open Energy Info (EERE)

    picture Submitted by Graham7781(2017) Super contributor 16 November, 2012 - 11:23 LEDS the focus of Monday's 10 a.m. Town Hall Meeting LEDS Town Hall meeting What: OpenEI's...

  7. Henderson Hall's Education and Career Fair

    Broader source: Energy.gov [DOE]

    Location: Smith Gym, Henderson Hall, Arlington, VAPOC: Donna FriendWebsite: http://www.mccshh.com/EducationCareerFairFall2014.html

  8. Building Green in Greensburg: City Hall Building

    Broader source: Energy.gov [DOE]

    This poster highlights energy efficiency, renewable energy, and sustainable features of the high-performing City Hall building in Greensburg, Kansas.

  9. Rebuilding It Better: Greensburg, Kansas, City Hall

    SciTech Connect (OSTI)

    D. Egan

    2010-04-13

    This document showcases the LEED-Platinum designed Greensburg City Hall, which was rebuilt green, after a massive tornado destroyed Greensburg, Kansas in May 2007.

  10. Hall-effect arc protector

    DOE Patents [OSTI]

    Rankin, R.A.; Kotter, D.K.

    1997-05-13

    The Hall-Effect Arc Protector is used to protect sensitive electronics from high energy arcs. The apparatus detects arcs by monitoring an electrical conductor, of the instrument, for changes in the electromagnetic field surrounding the conductor which would be indicative of a possible arcing condition. When the magnitude of the monitored electromagnetic field exceeds a predetermined threshold, the potential for an instrument damaging are exists and the control system logic activates a high speed circuit breaker. The activation of the breaker shunts the energy imparted to the input signal through a dummy load to the ground. After the arc condition is terminated, the normal signal path is restored. 2 figs.

  11. Hall-effect arc protector

    DOE Patents [OSTI]

    Rankin, Richard A. (Ammon, ID); Kotter, Dale K. (Shelley, ID)

    1997-01-01

    The Hall-Effect Arc Protector is used to protect sensitive electronics from high energy arcs. The apparatus detects arcs by monitoring an electrical conductor, of the instrument, for changes in the electromagnetic field surrounding the conductor which would be indicative of a possible arcing condition. When the magnitude of the monitored electromagnetic field exceeds a predetermined threshold, the potential for an instrument damaging are exists and the control system logic activates a high speed circuit breaker. The activation of the breaker shunts the energy imparted to the input signal through a dummy load to the ground. After the arc condition is terminated, the normal signal path is restored.

  12. Portland State University Shattuck Hall

    High Performance Buildings Database

    Portland, OR Portland State's Shattuck hall was originally constructed as an elementary school in 1915. In 2007 the university undertook extensive renovations of the building to bring it up to current seismic requirements. In addition to structural improvements, the design team was able to upgraded the building's aging mechanical and electrical systems, upgrade plumbing, and restore the large light wells that bring daylight into the U-shaped building. The resulting building houses Portland State's Architecture department, where students are able to learn from the exposed building systems.

  13. Town Hall with Secretary Moniz

    ScienceCinema (OSTI)

    Energy Secretary Ernest Moniz; Deputy Secretary of Energy Daniel Poneman

    2013-07-25

    In a town hall meeting with Department staff, Energy Secretary Ernest Moniz spoke about his plans for a reorganization of the Energy Department?s management structure. The plans will help better achieve the Department?s key priorities and those of the President, including implementing the President?s Climate Action Plan, ?all of the above? energy strategy and nuclear security agenda. After his remarks, Moniz, joined by Deputy Secretary Dan Poneman, took questions from the audience in the Forrestal Auditorium as well as email questions from other Department locations.

  14. Concept for Reducing Hall Thruster Chamber Wall Erosion with...

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

    Concept for Reducing Hall Thruster Chamber Wall Erosion with Lithium Vapor Shielding. Hall ... This invention addresses these concerns using a lightweight material (liquid lithium) in a ...

  15. Topological Hubbard Model and Its High-Temperature Quantum Hall...

    Office of Scientific and Technical Information (OSTI)

    Topological Hubbard Model and Its High-Temperature Quantum Hall Effect Title: Topological Hubbard Model and Its High-Temperature Quantum Hall Effect Authors: Neupert, Titus ; ...

  16. Building America Top Innovations Hall of Fame Profile - Building...

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

    Top Innovations Hall of Fame Profile - Building America's Top Innovations Propel the Home Building Industry toward Higher Performance Building America Top Innovations Hall of Fame ...

  17. Effective Field Theory of Fractional Quantized Hall Nematics...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Effective Field Theory of Fractional Quantized Hall Nematics Citation Details In-Document Search Title: Effective Field Theory of Fractional Quantized Hall ...

  18. Effective field theory of fractional quantized Hall nematics...

    Office of Scientific and Technical Information (OSTI)

    Effective field theory of fractional quantized Hall nematics Citation Details In-Document Search Title: Effective field theory of fractional quantized Hall nematics Authors: ...

  19. Quantum Anomalous Hall Effect in 2D Organic Topological Insulators...

    Office of Scientific and Technical Information (OSTI)

    Quantum Anomalous Hall Effect in 2D Organic Topological Insulators Citation Details In-Document Search Title: Quantum Anomalous Hall Effect in 2D Organic Topological Insulators ...

  20. Building America Top Innovations Hall of Fame Profile - Building...

    Energy Savers [EERE]

    Building America Top Innovations Hall of Fame Profile - Building Energy Optimization Analysis Method (BEopt) Building America Top Innovations Hall of Fame Profile - Building Energy...

  1. Anomalous spin precession and spin Hall effect in semiconductor...

    Office of Scientific and Technical Information (OSTI)

    Anomalous spin precession and spin Hall effect in semiconductor quantum wells Title: Anomalous spin precession and spin Hall effect in semiconductor quantum wells Authors: Bi, ...

  2. Quantum Hall effects in a Weyl semimetal: Possible application...

    Office of Scientific and Technical Information (OSTI)

    Quantum Hall effects in a Weyl semimetal: Possible application in pyrochlore iridates Title: Quantum Hall effects in a Weyl semimetal: Possible application in pyrochlore iridates ...

  3. Hall County, Texas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    B. Places in Hall County, Texas Estelline, Texas Lakeview, Texas Memphis, Texas Turkey, Texas Retrieved from "http:en.openei.orgwindex.php?titleHallCounty,Texas&oldid...

  4. Experiment Hall & Beamline | Advanced Photon Source

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

    1104-m-circumference optical bench. The hall floor is made of 1-ft-thick poured concrete. Usual practice in poured concrete construction is the use of evenly spaced cuts in...

  5. OSDBU Federal Contracting Town Hall Meeting

    Broader source: Energy.gov [DOE]

    In June of 2015, John Hale III, Director of the Office of Small and Disadvantaged Business Utilization, served as the moderator for the Federal Contracting Town Hall Meeting during the CelebrAsian...

  6. OpenEI Community - Town Hall meeting

    Open Energy Info (EERE)

    st, 2012 http:en.openei.orgcommunityblogtown-hall-meeting-october-1st-2012

  7. Brighton, United Kingdom: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Jump to: navigation, search Name Brighton, United Kingdom Equivalent URI DBpedia GeoNames ID 2654710 Coordinates 50.82838, -0.13947 Show Map Loading map......

  8. Norwich, United Kingdom: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    United Kingdom: Energy Resources Jump to: navigation, search Equivalent URI DBpedia GeoNames ID 2641181 Coordinates 52.62783, 1.29834 Show Map Loading map......

  9. Tonbridge, United Kingdom: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Tonbridge, United Kingdom: Energy Resources Jump to: navigation, search Name Tonbridge, England Equivalent URI DBpedia GeoNames ID 2635703 Coordinates 51.19242, 0.27532 Show...

  10. Leeds, United Kingdom: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Leeds, United Kingdom: Energy Resources Jump to: navigation, search Equivalent URI DBpedia GeoNames ID 2644688 Coordinates The following coordinate was not recognized: 53.79648 ...

  11. Hypernuclei in Hall C | Jefferson Lab

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

    Hypernuclei in Hall C Hypernuclei in Hall C High Resolution Electron Spectrometer The High Resolution Electron Spectrometer (teal and red, top left) was recently built with a grant from Japan's Ministry of Education, Culture, Sports, Science and Technology. The ministry also funded the new splitter magnet (dark green) and the High Resolution Kaon Spectrometer (purple and light green, top right). Nuclear scientists have gone to great lengths to pry open the nucleus and peer deep inside. They've

  12. Deck Those Halls! | Department of Energy

    Energy Savers [EERE]

    Deck Those Halls! Deck Those Halls! December 14, 2010 - 2:24pm Addthis Drew Bittner Writer/Editor, Office of Energy Efficiency and Renewable Energy It's mid-December, so odds are good you've already decorated your home for the holidays. If so, you're ahead of me; it took us about three days to get the lights on the tree and we still have items to put up at home, not to mention lots of Christmas cards to send out. My point is, many of us are pressed for time in this holiday season. Between

  13. TBB-0042- In the Matter of Curtis Hall

    Broader source: Energy.gov [DOE]

    This letter concerns the complaint of retaliation filed by Curtis Hall (the complainant or Mr. Hall) with the Department of Energy under 10 C . F. R. Part 7 0 8 , the DOE Con tractor Employee ...

  14. Fractional quantum spin Hall effect in flat-band checkerboard...

    Office of Scientific and Technical Information (OSTI)

    Fractional quantum spin Hall effect in flat-band checkerboard lattice model Citation Details In-Document Search Title: Fractional quantum spin Hall effect in flat-band checkerboard ...

  15. Phase transitions in quantum Hall multiple layer systems

    SciTech Connect (OSTI)

    Pusep, Yu A.; Fernandes dos Santos, L.; Smirnov, D.; Bakarov, A. K.; Toropov, A. I.

    2013-12-04

    Polarized photoluminescence from multiple well electron systems was studied in the regime of the integer quantum Hall effect. Two quantum Hall ferromagnetic ground states assigned to the uncorrelated miniband quantum Hall state and to the spontaneous interwell phase coherent dimer quantum Hall state were observed. The photoluminescence associated with these states exhibits features caused by finite-size skyrmions. The depolarization of the ferromagnetic ground state was observed in bilayer system.

  16. Diversity and Inclusion Town Hall Program Book | Department of Energy

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

    Town Hall Program Book Diversity and Inclusion Town Hall Program Book As part of a larger effort to create a culture that values diversity, we have been conducting focus groups to engage in a dialog and hear feedback on how diversity can be improved. At the Town Hall, DOE employees will hear the results of these discussions. View the program booklet from the Diversity and Inclusion Town Hall below. For more information about the Department's diversity and inclusion programs, visit

  17. Effective Field Theory of Fractional Quantized Hall Nematics (Journal

    Office of Scientific and Technical Information (OSTI)

    Article) | SciTech Connect Effective Field Theory of Fractional Quantized Hall Nematics Citation Details In-Document Search Title: Effective Field Theory of Fractional Quantized Hall Nematics We present a Landau-Ginzburg theory for a fractional quantized Hall nematic state and the transition to it from an isotropic fractional quantum Hall state. This justifies Lifshitz-Chern-Simons theory - which is shown to be its dual - on a more microscopic basis and enables us to compute a ground state

  18. Spring 2015 Henderson Hall Education and Career Fair

    Office of Energy Efficiency and Renewable Energy (EERE)

    Location: Smith Gym, Henderson Hall, Arlington, VAPOC: DOECorporateRecruitment@hq.doe.govWebsite: http://bit.ly/1FRIJOF

  19. Newmark-Hall synthetic history development

    SciTech Connect (OSTI)

    Aramayo, G.A.

    1990-11-01

    The methodology used to develop synthetic acceleration time histories with spectral content that envelopes the Newmark-Hall spectra is described. Six acceleration time histories are developed for two conditions of foundation and 3 critical damping factors. The target spectra corresponds to the mediam centered probability level.

  20. Oxford, United Kingdom: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. Oxford is a city in the United Kingdom. Registered Research Institutions in Oxford, United...

  1. Brighton, United Kingdom: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    (Redirected from Brighton, UK) Jump to: navigation, search Name Brighton, United Kingdom Equivalent URI DBpedia GeoNames ID 2654710 Coordinates 50.82838, -0.13947 Show Map...

  2. The Honorable,Edward Rendell, '. City Hall

    Office of Legacy Management (LM)

    I:! i394 .\ . The Honorable,Edward Rendell, '. City Hall Philadelphia, Pennsylvania 19107 Dear Mayor Rendell : ', ,' . , Secretary of Energy Hazel O',teary has announced-a new approach.to.openness in the Department of Energy (DDE) and its communications with the public. . In support of this initiative, we are.pleased to forward the enclosed information related to the,former. Penn Salt Manufacturing' Co. site in your jurisdiction that performed.work for DOE or its predecessor agencies. This

  3. Town_Hall_Meeting_10_29_15.pdf

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

    Town Hall with Secretary Moniz Town Hall with Secretary Moniz July 18, 2013 - 3:42pm Addthis Secretary Moniz speaks at a townhall with DOE employees on the Departmental reorganization. Dan Leistikow Dan Leistikow Former Director, Office of Public Affairs In a town hall meeting with Department staff, Energy Secretary Ernest Moniz spoke about his plans for a reorganization of the Energy Department's management structure. The plans will help better achieve the Department's key priorities and those

  4. Town Hall with Secretary Moniz | Department of Energy

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

    Town Hall with Secretary Moniz Town Hall with Secretary Moniz July 18, 2013 - 3:42pm Addthis Secretary Moniz speaks at a townhall with DOE employees on the Departmental reorganization. Dan Leistikow Dan Leistikow Former Director, Office of Public Affairs In a town hall meeting with Department staff, Energy Secretary Ernest Moniz spoke about his plans for a reorganization of the Energy Department's management structure. The plans will help better achieve the Department's key priorities and those

  5. Webcast: National Energy Literacy Virtual Town Hall | Department of Energy

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

    Webcast: National Energy Literacy Virtual Town Hall Webcast: National Energy Literacy Virtual Town Hall Webcast: National Energy Literacy Virtual Town Hall On August 5, 2014, the Department of Energy (DOE) hosted a dynamic virtual conversation of ongoing efforts from across the country in utilizing the Energy Literacy Framework to address one of our nations' biggest national challenges, "Energy Illiteracy." The goal of this webinar was to share resources in energy education and provide

  6. Spin-Hall-assisted magnetic random access memory (Journal Article) |

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect Spin-Hall-assisted magnetic random access memory Citation Details In-Document Search Title: Spin-Hall-assisted magnetic random access memory We propose a write scheme for perpendicular spin-transfer torque magnetoresistive random-access memory that significantly reduces the required tunnel current density and write energy. A sub-nanosecond in-plane polarized spin current pulse is generated using the spin-Hall effect, disturbing the stable magnetic state. Subsequent switching

  7. Missed Today's Town Hall with Sec. Chu? | Department of Energy

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

    Missed Today's Town Hall with Sec. Chu? Missed Today's Town Hall with Sec. Chu? January 26, 2011 - 4:02pm Addthis We have the video of today's online town hall event with Secretary Chu up and ready for your viewing. Check it out here. Ginny Simmons Ginny Simmons Former Managing Editor for Energy.gov, Office of Public Affairs We have the video of today's online town hall event with Secretary Chu up and ready for your viewing. Check it out here. During the event, Secretary Chu highlighted several

  8. Rebuilding It Better: Greensburg, Kansas. City Hall (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2010-04-01

    This document showcases the LEED-Platinum designed Greensburg City Hall, which was rebuilt green, after a massive tornado destroyed Greensburg, Kansas in May 2007.

  9. NE-24 Gilman Hall, University of California, Certification Documentati...

    Office of Legacy Management (LM)

    ... of Gilman Hall contaminated by MED and AEC activities. 0 Meyers, Sheldon (DOE) to ... actions are documented in the following reports and correspondence: 4 0 Gates, Joseph M. ...

  10. Engineering quantum anomalous/valley Hall states in graphene...

    Office of Scientific and Technical Information (OSTI)

    Engineering quantum anomalousvalley Hall states in graphene via metal-atom adsorption: An ab-initio study Citation Details In-Document Search Title: Engineering quantum anomalous...

  11. Building America Top Innovations Hall of Fame Profile … Unvented...

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

    In addition to influencing builders across the country to adopt unvented, conditioned ... AMERICA TOP INNOVATIONS HALL OF FAME PROFILE INNOVATIONS CATEGORY: 1. Advanced ...

  12. Building America Top Innovations Hall of Fame Profile … High...

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

    ... TOP INNOVATIONS BUILDING AMERICA BUILDING AMERICA TOP INNOVATIONS HALL OF FAME PROFILE Habitat affiliates across the country held "blitz builds" to construct homes for Gulf Coast ...

  13. Hall's Warehouse Corp Solar Project | Open Energy Information

    Open Energy Info (EERE)

    Corp. Solar Project" Retrieved from "http:en.openei.orgwindex.php?titleHall%27sWarehouseCorpSolarProject&oldid397541" Feedback Contact needs updating Image...

  14. Rebuilding It Better: Greensburg, Kansas. City Hall (Brochure)

    Broader source: Energy.gov [DOE]

    This brochure details the energy efficient and sustainable aspects of the LEED Platinum-designated City Hall building in Greensburg, Kansas.

  15. Centre Hall, Pennsylvania: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Hall, Pennsylvania: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 40.8475635, -77.6861093 Show Map Loading map... "minzoom":false,"mappingser...

  16. Hall County, Georgia: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Hall County, Georgia: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 34.30778, -83.804868 Show Map Loading map... "minzoom":false,"mappingserv...

  17. Systems and Methods for Cylindrical Hall Thrusters with Independently...

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

    Systems and Methods for Cylindrical Hall Thrusters with Independently Controllable Ionization and Acceleration Stages Yevgeny Raitses, Nathaniel J. Fisch and Kevin D. Diamant (The...

  18. Robert B. Laughlin and the Fractional Quantum Hall Effect

    Office of Scientific and Technical Information (OSTI)

    Robert B. Laughlin and the Fractional Quantum Hall Effect Resources with Additional Information Robert B. Laughlin Photo Courtesy of LLNL Robert B. Laughlin shared the 1998 Nobel...

  19. Rebuilding It Better: Greensburg, Kansas, City Hall (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2010-09-01

    This brochure details the energy efficient and sustainable aspects of the LEED Platinum-designated City Hall building in Greensburg, Kansas.

  20. Robert B. Laughlin and the Fractional Quantum Hall Effect

    Office of Scientific and Technical Information (OSTI)

    Robert B. Laughlin and the Fractional Quantum Hall Effect Resources with Additional Information Robert B. Laughlin Photo Courtesy of LLNL Robert B. Laughlin shared the 1998 Nobel ...

  1. Lees-Kubota Lecture Hall, Guggenheim 101

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

    SPECIAL SEMINAR - Monday, November 3 rd Lees-Kubota Lecture Hall, Guggenheim 101 11:15am-12:15pm "Perovskite Solar Cells: Towards New Materials and New Applications" Professor Nripan Mathews Nanyang Technological University, Singapore Abstract: Perovskite solar cells have attracted a lot of attention primarily due to its high efficiency (~19%). Much of the attention has focused on CH 3 NH 3 PbI 3 (Eg-1.55eV) whose high performance can be traced to a high absorption coefficient as well

  2. Segmented electrode hall thruster with reduced plume

    DOE Patents [OSTI]

    Fisch, Nathaniel J.; Raitses, Yevgeny

    2004-08-17

    An apparatus and method for thrusting plasma, utilizing a Hall thruster with segmented electrodes along the channel, which make the acceleration region as localized as possible. Also disclosed are methods of arranging the electrodes so as to minimize erosion and arcing. Also disclosed are methods of arranging the electrodes so as to produce a substantial reduction in plume divergence. The use of electrodes made of emissive material will reduce the radial potential drop within the channel, further decreasing the plume divergence. Also disclosed is a method of arranging and powering these electrodes so as to provide variable mode operation.

  3. Undulator Hall Air Temperature Fault Scenarios

    SciTech Connect (OSTI)

    Sevilla, J.; Welch, J.; ,

    2010-11-17

    Recent experience indicates that the LCLS undulator segments must not, at any time following tuning, be allowed to change temperature by more than about {+-}2.5 C or the magnetic center will irreversibly shift outside of acceptable tolerances. This vulnerability raises a concern that under fault conditions the ambient temperature in the Undulator Hall might go outside of the safe range and potentially could require removal and retuning of all the segments. In this note we estimate changes that can be expected in the Undulator Hall air temperature for three fault scenarios: (1) System-wide power failure; (2) Heating Ventilation and Air Conditioning (HVAC) system shutdown; and (3) HVAC system temperature regulation fault. We find that for either a system-wide power failure or an HVAC system shutdown (with the technical equipment left on), the short-term temperature changes of the air would be modest due to the ability of the walls and floor to act as a heat ballast. No action would be needed to protect the undulator system in the event of a system-wide power failure. Some action to adjust the heat balance, in the case of the HVAC power failure with the equipment left on, might be desirable but is not required. On the other hand, a temperature regulation failure of the HVAC system can quickly cause large excursions in air temperature and prompt action would be required to avoid damage to the undulator system.

  4. Pair spectrometer hodoscope for Hall D at Jefferson Lab

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

    Barbosa, Fernando J.; Hutton, Charles L.; Sitnikov, Alexandre; Somov, Alexander S.; Somov, S.; Tolstukhin, Ivan

    2015-09-21

    We present the design of the pair spectrometer hodoscope fabricated at Jefferson Lab and installed in the experimental Hall D. The hodoscope consists of thin scintillator tiles; the light from each tile is collected using wave-length shifting fibers and detected using a Hamamatsu silicon photomultiplier. Light collection was measured using relativistic electrons produced in the tagger area of the experimental Hall B.

  5. Energy spectrum, dissipation, and spatial structures in reduced Hall magnetohydrodynamic

    SciTech Connect (OSTI)

    Martin, L. N.; Dmitruk, P.; Gomez, D. O.

    2012-05-15

    We analyze the effect of the Hall term in the magnetohydrodynamic turbulence under a strong externally supported magnetic field, seeing how this changes the energy cascade, the characteristic scales of the flow, and the dynamics of global magnitudes, with particular interest in the dissipation. Numerical simulations of freely evolving three-dimensional reduced magnetohydrodynamics are performed, for different values of the Hall parameter (the ratio of the ion skin depth to the macroscopic scale of the turbulence) controlling the impact of the Hall term. The Hall effect modifies the transfer of energy across scales, slowing down the transfer of energy from the large scales up to the Hall scale (ion skin depth) and carrying faster the energy from the Hall scale to smaller scales. The final outcome is an effective shift of the dissipation scale to larger scales but also a development of smaller scales. Current sheets (fundamental structures for energy dissipation) are affected in two ways by increasing the Hall effect, with a widening but at the same time generating an internal structure within them. In the case where the Hall term is sufficiently intense, the current sheet is fully delocalized. The effect appears to reduce impulsive effects in the flow, making it less intermittent.

  6. Fractional Quantum Hall Effect at Landau Level Filling v=4/11...

    Office of Scientific and Technical Information (OSTI)

    Fractional Quantum Hall Effect at Landau Level Filling v411. Citation Details In-Document Search Title: Fractional Quantum Hall Effect at Landau Level Filling v411. Abstract...

  7. Non-abelian fractional quantum hall effect for fault-resistant...

    Office of Scientific and Technical Information (OSTI)

    Non-abelian fractional quantum hall effect for fault-resistant topological quantum computation. Citation Details In-Document Search Title: Non-abelian fractional quantum hall...

  8. Spin Hall magnetoresistance at high temperatures

    SciTech Connect (OSTI)

    Uchida, Ken-ichi; Qiu, Zhiyong; Kikkawa, Takashi; Iguchi, Ryo; Saitoh, Eiji

    2015-02-02

    The temperature dependence of spin Hall magnetoresistance (SMR) in Pt/Y{sub 3}Fe{sub 5}O{sub 12} (YIG) bilayer films has been investigated in a high temperature range from room temperature to near the Curie temperature of YIG. The experimental results show that the magnitude of the magnetoresistance ratio induced by the SMR monotonically decreases with increasing the temperature and almost disappears near the Curie temperature. We found that, near the Curie temperature, the temperature dependence of the SMR in the Pt/YIG film is steeper than that of a magnetization curve of the YIG; the critical exponent of the magnetoresistance ratio is estimated to be 0.9. This critical behavior of the SMR is attributed mainly to the temperature dependence of the spin-mixing conductance at the Pt/YIG interface.

  9. Public invited to LANL-sponsored Energy Town Hall

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

    LOS ALAMOS, New Mexico, April 19, 2010-The public is invited to learn about projects in energy conservation, generation, research, and management at an Energy Town Hall April 21. ...

  10. Missed the Town Hall with Secretary Chu? | Department of Energy

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

    the video of the online town hall event with Secretary Chu up and ready for your viewing. ... about 40 minutes of questions from both the in-house audience and the online audiences. ...

  11. Property:Building/FloorAreaTheatresConcertHallsCinemas | Open...

    Open Energy Info (EERE)

    Property Edit with form History Property:BuildingFloorAreaTheatresConcertHallsCinemas Jump to: navigation, search This is a property of type Number. Floor area for Theatres,...

  12. Hall County, Nebraska: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. Hall County is a county in Nebraska. Its FIPS County Code is 079. It is classified as ASHRAE...

  13. TBH-0042- In the Matter of Curtis Hall

    Broader source: Energy.gov [DOE]

    This Initial Agency Decision involves a whistleblower complaint filed by Mr. Curtis Hall (also referred to as the complainant or the individual) under the Department of Energy (DOE) Contractor...

  14. Generation of magnetic skyrmion bubbles by inhomogeneous spin Hall currents

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | DOE PAGES Generation of magnetic skyrmion bubbles by inhomogeneous spin Hall currents This content will become publicly available on March 7, 2017 « Prev Next » Title: Generation of magnetic skyrmion bubbles by inhomogeneous spin Hall currents Authors: Heinonen, Olle ; Jiang, Wanjun ; Somaily, Hamoud ; te Velthuis, Suzanne G. E. ; Hoffmann, Axel Publication Date: 2016-03-07 OSTI Identifier: 1240477 Type: Publisher's Accepted Manuscript Journal Name: Physical Review B

  15. Microscopic theory of quantum anomalous Hall effect in graphene (Journal

    Office of Scientific and Technical Information (OSTI)

    Article) | SciTech Connect Microscopic theory of quantum anomalous Hall effect in graphene Citation Details In-Document Search Title: Microscopic theory of quantum anomalous Hall effect in graphene Authors: Qiao, Zhenhua ; Jiang, Hua ; Li, Xiao ; Yao, Yugui ; Niu, Qian Publication Date: 2012-03-27 OSTI Identifier: 1098600 Type: Publisher's Accepted Manuscript Journal Name: Physical Review B Additional Journal Information: Journal Volume: 85; Journal Issue: 11; Journal ID: ISSN 1098-0121

  16. Spin Hall Effects in Metallic Antiferromagnets (Journal Article) | DOE

    Office of Scientific and Technical Information (OSTI)

    PAGES Spin Hall Effects in Metallic Antiferromagnets « Prev Next » Title: Spin Hall Effects in Metallic Antiferromagnets Authors: Zhang, Wei ; Jungfleisch, Matthias B. ; Jiang, Wanjun ; Pearson, John E. ; Hoffmann, Axel ; Freimuth, Frank ; Mokrousov, Yuriy Publication Date: 2014-11-04 OSTI Identifier: 1181195 Type: Publisher's Accepted Manuscript Journal Name: Physical Review Letters Additional Journal Information: Journal Volume: 113; Journal Issue: 19; Journal ID: ISSN 0031-9007

  17. Spin Hall effects in metallic antiferromagnets - perspectives for future

    Office of Scientific and Technical Information (OSTI)

    spin-orbitronics (Journal Article) | DOE PAGES Hall effects in metallic antiferromagnets - perspectives for future spin-orbitronics « Prev Next » Title: Spin Hall effects in metallic antiferromagnets - perspectives for future spin-orbitronics Authors: Sklenar, Joseph [1] ; Zhang, Wei [2] ; Jungfleisch, Matthias B. [2] ; Jiang, Wanjun [2] ; Saglam, Hilal [3] ; Pearson, John E. [2] ; Ketterson, John B. [4] Search DOE PAGES for author "Ketterson, John B." Search DOE PAGES for ORCID

  18. Building America Top Innovations Hall of Fame Profile - Building Energy

    Energy Savers [EERE]

    Optimization Analysis Method (BEopt) | Department of Energy America Top Innovations Hall of Fame Profile - Building Energy Optimization Analysis Method (BEopt) Building America Top Innovations Hall of Fame Profile - Building Energy Optimization Analysis Method (BEopt) PDF icon 3_3a_ba_innov_beopt_011713.pdf More Documents & Publications Building Energy Optimization Analysis Method (BEopt) - Building America Top Innovation BEopt Version 2.0: New Features Building America Webinar: Building

  19. Hall effect measurements on InAs nanowires

    SciTech Connect (OSTI)

    Bloemers, Ch.; Grap, T.; Lepsa, M. I.; Moers, J.; Gruetzmacher, D.; Lueth, H.; Trellenkamp, St.; Schaepers, Th.

    2012-10-08

    We have processed Hall contacts on InAs nanowires grown by molecular beam epitaxy using an electron beam lithography process with an extremely high alignment accuracy. The carrier concentrations determined from the Hall effect measurements on these nanowires are lower by a factor of about 4 in comparison with those measured by the common field-effect technique. The results are used to evaluate quantitatively the charging effect of the interface and surface states.

  20. U.S. Department of Energy Welcomes the United Kingdom as 21st Member of the

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

    Global Nuclear Energy Partnership | Department of Energy Welcomes the United Kingdom as 21st Member of the Global Nuclear Energy Partnership U.S. Department of Energy Welcomes the United Kingdom as 21st Member of the Global Nuclear Energy Partnership January 26, 2008 - 11:29am Addthis WASHINGTON, DC -The U.S. Department of Energy (DOE) today welcomed the United Kingdom (UK) as the Global Nuclear Energy Partnership's (GNEP) twenty-first partner. GNEP, a voluntary international partnership,

  1. Stability of Hall equilibria in neutron star crusts

    SciTech Connect (OSTI)

    Marchant, Pablo; Reisenegger, Andreas; Valdivia, Juan Alejandro; Hoyos, Jaime H.

    2014-12-01

    In the solid crusts of neutron stars, the advection of the magnetic field by the current-carrying electrons, an effect known as Hall drift, should play a very important role as the ions remain essentially fixed (as long as the solid does not break). Although Hall drift preserves the magnetic field energy, it has been argued that it may drive a turbulent cascade to scales at which ohmic dissipation becomes effective, allowing a much faster decay in objects with very strong fields. On the other hand, it has been found that there are 'Hall equilibria', i.e., field configurations that are unaffected by Hall drift. Here we address the crucial question of the stability of these equilibria through axially symmetric (two-dimensional (2D)) numerical simulations of Hall drift and ohmic diffusion, with the simplifying assumption of uniform electron density and conductivity. We demonstrate the 2D stability of a purely poloidal equilibrium, for which ohmic dissipation makes the field evolve toward an attractor state through adjacent stable configurations, around which damped oscillations occur. For this field, the decay scales with the ohmic timescale. We also study the case of an unstable equilibrium consisting of both poloidal and toroidal field components that are confined within the crust. This field evolves into a stable configuration, which undergoes damped oscillations superimposed on a slow evolution toward an attractor, just as the purely poloidal one.

  2. Admittance of multiterminal quantum Hall conductors at kilohertz frequencies

    SciTech Connect (OSTI)

    Hernndez, C.; Consejo, C.; Chaubet, C.; Degiovanni, P.

    2014-03-28

    We present an experimental study of the low frequency admittance of quantum Hall conductors in the [100?Hz, 1?MHz] frequency range. We show that the frequency dependence of the admittance of the sample strongly depends on the topology of the contacts connections. Our experimental results are well explained within the Christen and Bttiker approach for finite frequency transport in quantum Hall edge channels taking into account the influence of the coaxial cables capacitance. In the Hall bar geometry, we demonstrate that there exists a configuration in which the cable capacitance does not influence the admittance measurement of the sample. In this case, we measure the electrochemical capacitance of the sample and observe its dependence on the filling factor.

  3. Reconnection events in two-dimensional Hall magnetohydrodynamic turbulence

    SciTech Connect (OSTI)

    Donato, S.; Servidio, S.; Carbone, V. [Dipartimento di Fisica, Universita della Calabria, I-87036 Cosenza (Italy); Dmitruk, P. [Departamento de Fisica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires and Instituto de Fisica de Buenos Aires, CONICET, Buenos Aires (Argentina); Shay, M. A.; Matthaeus, W. H. [Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716 (United States); Cassak, P. A. [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States)

    2012-09-15

    The statistical study of magnetic reconnection events in two-dimensional turbulence has been performed by comparing numerical simulations of magnetohydrodynamics (MHD) and Hall magnetohydrodynamics (HMHD). The analysis reveals that the Hall term plays an important role in turbulence, in which magnetic islands simultaneously reconnect in a complex way. In particular, an increase of the Hall parameter, the ratio of ion skin depth to system size, broadens the distribution of reconnection rates relative to the MHD case. Moreover, in HMHD the local geometry of the reconnection region changes, manifesting bifurcated current sheets and quadrupolar magnetic field structures in analogy to laminar studies, leading locally to faster reconnection processes in this case of reconnection embedded in turbulence. This study supports the idea that the global rate of energy dissipation is controlled by the large scale turbulence, but suggests that the distribution of the reconnection rates within the turbulent system is sensitive to the microphysics at the reconnection sites.

  4. Study of the effects of guide field on Hall reconnection

    SciTech Connect (OSTI)

    Tharp, T. D.; Yamada, M.; Ji, H.; Lawrence, E.; Dorfman, S.; Myers, C.; Yoo, J.; Huang, Y.-M.; Bhattacharjee, A.

    2013-05-15

    The results from guide field studies on the Magnetic Reconnection Experiment (MRX) are compared with results from Hall magnetohydrodynamic (HMHD) reconnection simulation with guide field. The quadrupole field, a signature of two-fluid reconnection at zero guide field, is modified by the presence of a finite guide field in a manner consistent with HMHD simulation. The modified Hall current profile contains reduced electron flows in the reconnection plane, which quantitatively explains the observed reduction of the reconnection rate. The present results are consistent with the hypothesis that the local reconnection dynamics is dominated by Hall effects in the collisionless regime of the MRX plasmas. While very good agreement is seen between experiment and simulations, we note that an important global feature of the experiments, a compression of the guide field by the reconnecting plasma, is not represented in the simulations.

  5. On the question of hysteresis in Hall magnetohydrodynamic reconnection

    SciTech Connect (OSTI)

    Sullivan, Brian P.; Bhattacharjee, A.; Huang Yimin

    2010-11-15

    Controversy has been raised regarding the cause of hysteresis, or bistability, of solutions to the equations that govern the geometry of the reconnection region in Hall magnetohydrodynamic (MHD) systems. This brief communication presents a comparison of the frameworks within which this controversy has arisen and illustrates that the Hall MHD hysteresis originally discovered numerically by Cassak et al. [Phys. Rev. Lett. 95, 235002 (2005)] is a different phenomenon from that recently reported by Zocco et al. [Phys. Plasmas 16, 110703 (2009)] on the basis of analysis and simulations in electron MHD with finite electron inertia. We demonstrate that the analytic prediction of hysteresis in EMHD does not describe or explain the hysteresis originally reported in Hall MHD, which is shown to persist even in the absence of electron inertia.

  6. Hall effect in a strong magnetic field: Direct comparisons of compressible magnetohydrodynamics and the reduced Hall magnetohydrodynamic equations

    SciTech Connect (OSTI)

    Martin, L. N.; Dmitruk, P.; Gomez, D. O.

    2010-11-15

    In this work we numerically test a model of Hall magnetohydrodynamics in the presence of a strong mean magnetic field: the reduced Hall magnetohydrodynamic model (RHMHD) derived by [Gomez et al., Phys. Plasmas 15, 102303 (2008)] with the addition of weak compressible effects. The main advantage of this model lies in the reduction of computational cost. Nevertheless, up until now the degree of agreement with the original Hall MHD system and the range of validity in a regime of turbulence were not established. In this work direct numerical simulations of three-dimensional Hall MHD turbulence in the presence of a strong mean magnetic field are compared with simulations of the weak compressible RHMHD model. The results show that the degree of agreement is very high (when the different assumptions of RHMHD, such as spectral anisotropy, are satisfied). Nevertheless, when the initial conditions are isotropic but the mean magnetic field is maintained strong, the results differ at the beginning but asymptotically reach a good agreement at relatively short times. We also found evidence that the compressibility still plays a role in the dynamics of these systems, and the weak compressible RHMHD model is able to capture these effects. In conclusion the weak compressible RHMHD model is a valid approximation of the Hall MHD turbulence in the relevant physical context.

  7. Inverse spin Hall effect in Pt/(Ga,Mn)As

    SciTech Connect (OSTI)

    Nakayama, H.; Chen, L.; Chang, H. W.; Ohno, H.; Matsukura, F.

    2015-06-01

    We investigate dc voltages under ferromagnetic resonance in a Pt/(Ga,Mn)As bilayer structure. A part of the observed dc voltage is shown to originate from the inverse spin Hall effect. The sign of the inverse spin Hall voltage is the same as that in Py/Pt bilayer structure, even though the stacking order of ferromagnetic and nonmagnetic layers is opposite to each other. The spin mixing conductance at the Pt/(Ga,Mn)As interface is determined to be of the order of 10{sup 19 }m{sup −2}, which is about ten times greater than that of (Ga,Mn)As/p-GaAs.

  8. Nanoconstriction-based spin-Hall nano-oscillator

    SciTech Connect (OSTI)

    Demidov, V. E.; Urazhdin, S.; Zholud, A.; Sadovnikov, A. V.; Demokritov, S. O.

    2014-10-27

    We experimentally demonstrate magnetic nano-oscillators driven by pure spin current produced by the spin Hall effect in a bow tie-shaped nanoconstriction. These devices exhibit single-mode auto-oscillation and generate highly-coherent electronic microwave signals with a significant power and the spectral linewidth as low as 6.2 MHz at room temperature. The proposed simple and flexible device geometry is amenable to straightforward implementation of advanced spintronic structures such as chains of mutually coupled spin-Hall nano-oscillators.

  9. Quantum anomalous Hall effect in topological insulator memory

    SciTech Connect (OSTI)

    Jalil, Mansoor B. A.; Tan, S. G.; Siu, Z. B.

    2015-05-07

    We theoretically investigate the quantum anomalous Hall effect (QAHE) in a magnetically coupled three-dimensional-topological insulator (3D-TI) system. We apply the generalized spin-orbit coupling Hamiltonian to obtain the Hall conductivity ?{sup xy} of the system. The underlying topology of the QAHE phenomenon is then analyzed to show the quantization of ?{sup xy} and its relation to the Berry phase of the system. Finally, we analyze the feasibility of utilizing ?{sup xy} as a memory read-out in a 3D-TI based memory at finite temperatures, with comparison to known magnetically doped 3D-TIs.

  10. VEE-0067- In the Matter of M.L. Halle Oil Service, Inc.

    Broader source: Energy.gov [DOE]

    On August 9, 1999 M.L. Halle Oil Service, Inc. (Halle) of Manchester, New Hampshire, filed an Application for Exception with the Office of Hearings and Appeals (OHA) of the Department of Energy ...

  11. Quantum anomalous Hall effect in single-layer and bilayer graphene...

    Office of Scientific and Technical Information (OSTI)

    Quantum anomalous Hall effect in single-layer and bilayer graphene Citation Details In-Document Search Title: Quantum anomalous Hall effect in single-layer and bilayer graphene ...

  12. 06.27.14 SRS Retirees Town Hall Meeting-Dave Hepner Page...

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

    Meeting-Dave Hepner Page 1 SRSRA TOWN HALL MEETING New Ellenton Community Center JUNE 27, 2014 After reviewing the notes and discussing the Town Hall Meeting held on June 27, 2014,...

  13. Bernhard Mecking steps down as Hall B leader at Jefferson Lab | Jefferson

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

    Lab Bernhard Mecking steps down as Hall B leader at Jefferson Lab Bernhard Mecking Jefferson Lab staff scientist Bernhard Mecking with the CEBAF Large Acceptance Spectrometer (CLAS) in Hall B. Bernhard Mecking steps down as Hall B leader at Jefferson Lab April 2, 2003 On 1 February 2003, Bernhard Mecking stepped down as leader of Hall B to return to full-time research at the Department of Energy's Thomas Jefferson National Accelerator Facility (Jefferson Lab) in Newport News, Virginia.

  14. After 105 Years, Historic City Hall in West Des Moines, Iowa Goes Green |

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

    Department of Energy After 105 Years, Historic City Hall in West Des Moines, Iowa Goes Green After 105 Years, Historic City Hall in West Des Moines, Iowa Goes Green May 9, 2011 - 5:22pm Addthis The restored Historic City Hall building in West Des Moines' Valley Junction neighborhood. | Photo credit: Vicky Saylor The restored Historic City Hall building in West Des Moines' Valley Junction neighborhood. | Photo credit: Vicky Saylor April Saylor April Saylor Former Digital Outreach Strategist,

  15. AGU SubTER Town Hall Presentation 2015 | Department of Energy

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

    AGU SubTER Town Hall Presentation 2015 AGU SubTER Town Hall Presentation 2015 PDF icon AGU SubTER Townhall 2015.pdf More Documents & Publications SubTER Fact Sheet SubTER Presentation at Town Hall - American Geophysical Union SubTER Crosscut White Paper

  16. Windsor, Wisconsin: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Dane County, Wisconsin.1 References US Census Bureau Incorporated place and minor civil division population dataset (All States, all geography) Retrieved from "http:...

  17. Windsor, Vermont: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    district. 1 2 References US Census Bureau Incorporated place and minor civil division population dataset (All States, all geography) 110th Congressional...

  18. United States-United Kingdom Collaboration on Fossil Energy R&D |

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

    Department of Energy Services » International Cooperation » United States-United Kingdom Collaboration on Fossil Energy R&D United States-United Kingdom Collaboration on Fossil Energy R&D U.S.-UK Collaboration in Fossil Energy R&D The United States and the United Kingdom are participating in a multi-year collaboration on advanced materials supported by the UK Department of Energy and Climate Change (DECC) and the U.S. Department of Energy (DOE). The collaboration is an

  19. ,"Liquefied U.S. Natural Gas Re-Exports to United Kingdom (Million...

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

    2016 11:48:54 AM" "Back to Contents","Data 1: Liquefied U.S. Natural Gas Re-Exports to United Kingdom (Million Cubic Feet)" "Sourcekey","NGMEPG0ERENUS-NUKMMCF"...

  20. Contactless measurement of alternating current conductance in quantum Hall structures

    SciTech Connect (OSTI)

    Drichko, I. L.; Diakonov, A. M.; Malysh, V. A.; Smirnov, I. Yu.; Ilyinskaya, N. D.; Usikova, A. A.; Galperin, Y. M.; Kummer, M.; Känel, H. von

    2014-10-21

    We report a procedure to determine the frequency-dependent conductance of quantum Hall structures in a broad frequency domain. The procedure is based on the combination of two known probeless methods—acoustic spectroscopy and microwave spectroscopy. By using the acoustic spectroscopy, we study the low-frequency attenuation and phase shift of a surface acoustic wave in a piezoelectric crystal in the vicinity of the electron (hole) layer. The electronic contribution is resolved using its dependence on a transverse magnetic field. At high frequencies, we study the attenuation of an electromagnetic wave in a coplanar waveguide. To quantitatively calibrate these data, we use the fact that in the quantum-Hall-effect regime the conductance at the maxima of its magnetic field dependence is determined by extended states. Therefore, it should be frequency independent in a broad frequency domain. The procedure is verified by studies of a well-characterized p-SiGe/Ge/SiGe heterostructure.

  1. Recent Results of TMD Measurements from Jefferson Lab Hall A

    SciTech Connect (OSTI)

    Jiang, Xiaodong

    2013-10-01

    This slide-show presents results on transverse momentum distributions. The presentation covers: target single-spin asymmetry (SSA) (in parity conserving interactions); Results of JLab Hall A polarized {sup 3}He target TMD measurement; Semi-?inclusive deep-inelastic scattering channels (E06-010); Target single-spin asymmetry A{sub UT}, Collins and Sivers SSA on neutron; Double-spin asymmetry A{sub LT}, extract TMD g{sub 1T} on neutron; Inclusive channels SSA (E06-010, E05-015, E07-013) Target SSA: inclusive {sup 3}He(e,e) quasi-elastic scattering; Target SSA: inclusive {sup 3}He(e,e) deep inelastic-elastic scattering; New SIDIS experiments planned in Hall-A for JLab-12 GeV.

  2. Effects of Enhanced Eathode Electron Emission on Hall Thruster Operation

    SciTech Connect (OSTI)

    Y. Raitses, A. Smirnov and N. J. Fisch

    2009-04-24

    Interesting discharge phenomena are observed that have to do with the interaction between the magnetized Hall thruster plasma and the neutralizing cathode. The steadystate parameters of a highly ionized thruster discharge are strongly influenced by the electron supply from the cathode. The enhancement of the cathode electron emission above its self-sustained level affects the discharge current and leads to a dramatic reduction of the plasma divergence and a suppression of large amplitude, low frequency discharge current oscillations usually related to an ionization instability. These effects correlate strongly with the reduction of the voltage drop in the region with the fringing magnetic field between the thruster channel and the cathode. The measured changes of the plasma properties suggest that the electron emission affects the electron cross-field transport in the thruster discharge. These trends are generalized for Hall thrusters of various configurations.

  3. Precise quantization of anomalous Hall effect near zero magnetic field

    SciTech Connect (OSTI)

    Bestwick, A. J.; Fox, E. J.; Kou, Xufeng; Pan, Lei; Wang, Kang L.; Goldhaber-Gordon, D.

    2015-05-04

    In this study, we report a nearly ideal quantum anomalous Hall effect in a three-dimensional topological insulator thin film with ferromagnetic doping. Near zero applied magnetic field we measure exact quantization in the Hall resistance to within a part per 10,000 and a longitudinal resistivity under 1 Ω per square, with chiral edge transport explicitly confirmed by nonlocal measurements. Deviations from this behavior are found to be caused by thermally activated carriers, as indicated by an Arrhenius law temperature dependence. Using the deviations as a thermometer, we demonstrate an unexpected magnetocaloric effect and use it to reach near-perfect quantization by cooling the sample below the dilution refrigerator base temperature in a process approximating adiabatic demagnetization refrigeration.

  4. Fractionally charged skyrmions in fractional quantum Hall effect

    SciTech Connect (OSTI)

    Balram, Ajit C.; Wurstbauer, U.; Wójs, A.; Pinczuk, A.; Jain, J. K.

    2015-11-26

    The fractional quantum Hall effect has inspired searches for exotic emergent topological particles, such as fractionally charged excitations, composite fermions, abelian and nonabelian anyons and Majorana fermions. Fractionally charged skyrmions, which support both topological charge and topological vortex-like spin structure, have also been predicted to occur in the vicinity of 1/3 filling of the lowest Landau level. The fractional skyrmions, however, are anticipated to be exceedingly fragile, suppressed by very small Zeeman energies. Here we show that, slightly away from 1/3 filling, the smallest manifestations of the fractional skyrmion exist in the excitation spectrum for a broad range of Zeeman energies, and appear in resonant inelastic light scattering experiments as well-defined resonances slightly below the long wavelength spin wave mode. The spectroscopy of these exotic bound states serves as a sensitive tool for investigating the residual interaction between composite fermions, responsible for delicate new fractional quantum Hall states in this filling factor region.

  5. Intermittency in Hall-magnetohydrodynamics with a strong guide field

    SciTech Connect (OSTI)

    Rodriguez Imazio, P.; Martin, L. N.; Dmitruk, P.; Mininni, P. D.; National Center for Atmospheric Research, P.O. Box 3000, Boulder, Colorado 80307

    2013-05-15

    We present a detailed study of intermittency in the velocity and magnetic field fluctuations of compressible Hall-magnetohydrodynamic turbulence with an external guide field. To solve the equations numerically, a reduced model valid when a strong guide field is present is used. Different values for the ion skin depth are considered in the simulations. The resulting data are analyzed computing field increments in several directions perpendicular to the guide field, and building structure functions and probability density functions. In the magnetohydrodynamic limit, we recover the usual results with the magnetic field being more intermittent than the velocity field. In the presence of the Hall effect, field fluctuations at scales smaller than the ion skin depth show a substantial decrease in the level of intermittency, with close to monofractal scaling.

  6. Transition in Electron Transport in a Cylindrical Hall Thruster

    SciTech Connect (OSTI)

    J.B. Parker, Y. Raitses, and N.J. Fisch

    2010-06-02

    Through the use of high-speed camera and Langmuir probe measurements in a cylindrical Hall thruster, we report the discovery of a rotating spoke of increased plasma density and light emission which correlates with increased electron transport across the magnetic field. As cathode electron emission is increased, a sharp transition occurs where the spoke disappears and electron transport decreases. This suggests that a significant fraction of the electron current might be directed through the spoke.

  7. Jackie Chen inducted into Alameda County Women's Hall of Fame

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

    inducted into Alameda County Women's Hall of Fame - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste

  8. Gradient instabilities of electromagnetic waves in Hall thruster plasma

    SciTech Connect (OSTI)

    Tomilin, Dmitry

    2013-04-15

    This paper presents a linear analysis of gradient plasma instabilities in Hall thrusters. The study obtains and analyzes the dispersion equation of high-frequency electromagnetic waves based on the two-fluid model of a cold plasma. The regions of parameters corresponding to unstable high frequency modes are determined and the dependence of the increments and intrinsic frequencies on plasma parameters is obtained. The obtained results agree with those of previously published studies.

  9. Metal-to-insulator switching in quantum anomalous Hall states

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

    Kou, Xufeng; Pan, Lei; Wang, Jing; Fan, Yabin; Choi, Eun Sang; Lee, Wei -Li; Nie, Tianxiao; Murata, Koichi; Shao, Qiming; Zhang, Shou -Cheng; et al

    2015-10-07

    After decades of searching for the dissipationless transport in the absence of any external magnetic field, quantum anomalous Hall effect (QAHE) was recently achieved in magnetic topological insulator films. However, the universal phase diagram of QAHE and its relation with quantum Hall effect (QHE) remain to be investigated. Here, we report the experimental observation of the giant longitudinal resistance peak and zero Hall conductance plateau at the coercive field in the six quintuple-layer (Cr0.12Bi0.26Sb0.62)2Te3 film, and demonstrate the metal-to-insulator switching between two opposite QAHE plateau states up to 0.3 K. Moreover, the universal QAHE phase diagram is confirmed through themore » angle-dependent measurements. Our results address that the quantum phase transitions in both QAHE and QHE regimes are in the same universality class, yet the microscopic details are different. Additionally, the realization of the QAHE insulating state unveils new ways to explore quantum phase-related physics and applications.« less

  10. Metal-to-insulator switching in quantum anomalous Hall states

    SciTech Connect (OSTI)

    Kou, Xufeng; Pan, Lei; Wang, Jing; Fan, Yabin; Choi, Eun Sang; Lee, Wei -Li; Nie, Tianxiao; Murata, Koichi; Shao, Qiming; Zhang, Shou -Cheng; Wang, Kang L.

    2015-10-07

    After decades of searching for the dissipationless transport in the absence of any external magnetic field, quantum anomalous Hall effect (QAHE) was recently achieved in magnetic topological insulator films. However, the universal phase diagram of QAHE and its relation with quantum Hall effect (QHE) remain to be investigated. Here, we report the experimental observation of the giant longitudinal resistance peak and zero Hall conductance plateau at the coercive field in the six quintuple-layer (Cr0.12Bi0.26Sb0.62)2Te3 film, and demonstrate the metal-to-insulator switching between two opposite QAHE plateau states up to 0.3 K. Moreover, the universal QAHE phase diagram is confirmed through the angle-dependent measurements. Our results address that the quantum phase transitions in both QAHE and QHE regimes are in the same universality class, yet the microscopic details are different. Additionally, the realization of the QAHE insulating state unveils new ways to explore quantum phase-related physics and applications.

  11. Large spin-wave bullet in a ferrimagnetic insulator driven by spin Hall

    Office of Scientific and Technical Information (OSTI)

    effect. (Journal Article) | SciTech Connect Large spin-wave bullet in a ferrimagnetic insulator driven by spin Hall effect. Citation Details In-Document Search Title: Large spin-wave bullet in a ferrimagnetic insulator driven by spin Hall effect. Due to its transverse nature, spin Hall effects (SHE) provide the possibility to excite and detect spin currents and magnetization dynamics even in magnetic insulators. Magnetic insulators are outstanding materials for the investigation of nonlinear

  12. Berry phase mechanism of the anomalous Hall effect in a disordered

    Office of Scientific and Technical Information (OSTI)

    two-dimensional magnetic semiconductor structure. (Journal Article) | SciTech Connect Berry phase mechanism of the anomalous Hall effect in a disordered two-dimensional magnetic semiconductor structure. Citation Details In-Document Search Title: Berry phase mechanism of the anomalous Hall effect in a disordered two-dimensional magnetic semiconductor structure. In this study, the anomalous Hall effect (AHE) arises from the interplay of spin-orbit interactions and ferromagnetic order and is a

  13. SubTER Presentation at Town Hall - American Geophysical Union | Department

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

    of Energy Presentation at Town Hall - American Geophysical Union SubTER Presentation at Town Hall - American Geophysical Union Subter, the Subsurface Crosscut at the Energy Department, conducted a Town Hall meeting to share information and create a dialogue regarding the grand challenges of energy production and storage in the subsurface. The event was held at the AGU Fall Meeting in San Francisco on December 15, 2014. Click here to learn more about SubTER. Open the full slide presentation

  14. January 22, 2014 in 100E Hildebrand Hall | Center for GasSeparationsR...

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

    January 22, 2014 in 100E Hildebrand Hall Previous Next List Miguel Gonzalez (Dept. of Chemistry, UC Berkeley) Designing Metal-Organic Frameworks for Catalysis Richard Martin...

  15. June 24, 2015 in 100E Hildebrand Hall | Center for Gas SeparationsRele...

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

    4, 2015 in 100E Hildebrand Hall Previous Next List Stephen Meckler (Lawrence Berkeley National Laboratory) Layered Zif-Polymer Composites Accessed through Metal Oxide Precursors...

  16. Tunable Anderson metal-insulator transition in quantum spin-Hall...

    Office of Scientific and Technical Information (OSTI)

    Tunable Anderson metal-insulator transition in quantum spin-Hall insulators Citation ... This content will become publicly available on June 3, 2016 Title: Tunable Anderson ...

  17. Plasma analogy and non-Abelian statistics for Ising-type quantum Hall

    Office of Scientific and Technical Information (OSTI)

    states (Journal Article) | SciTech Connect Plasma analogy and non-Abelian statistics for Ising-type quantum Hall states Citation Details In-Document Search Title: Plasma analogy and non-Abelian statistics for Ising-type quantum Hall states We study the non-Abelian statistics of quasiparticles in the Ising-type quantum Hall states which are likely candidates to explain the observed Hall conductivity plateaus in the second Landau level, most notably the one at filling fraction {nu}=5/2. We

  18. EECBG Success Story: After 105 Years, Historic City Hall in West...

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

    City Hall in West Des Moines, Iowa Goes Green EECBG Success Story: Grant Improves ... of Oro Valley EECBG Success Story: Energy Upgrades to Save Small Arizona Town Big ...

  19. PREPRINT QUASIPARTICLE AGGREGATION I N THE FRACTIONAL QUANTUM HALL EFFECT

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

    91618 PREPRINT QUASIPARTICLE AGGREGATION I N THE FRACTIONAL QUANTUM HALL EFFECT R. B. Laughlin This paper was prepared for submittal to the Proceedings of the 17th International Conference on the Physics of Semi conductors San Francisco, California August 6-10, 1984 October 10, 1984 This is a preprint of a paper intended for publication in a journal or proceedings. Since changes may be made before publication, this preprint is made available with the un- derstanding that it will not be cited or

  20. Titanium diboride ceramic fiber composites for Hall-Heroult cells

    DOE Patents [OSTI]

    Besmann, T.M.; Lowden, R.A.

    1990-05-29

    An improved cathode structure is described for Hall-Heroult cells for the electrolytic production of aluminum metal. This cathode structure is a preform fiber base material that is infiltrated with electrically conductive titanium diboride using chemical vapor infiltration techniques. The structure exhibits good fracture toughness, and is sufficiently resistant to attack by molten aluminum. Typically, the base can be made from a mat of high purity silicon carbide fibers. Other ceramic or carbon fibers that do not degrade at temperatures below about 1000 C can be used.

  1. Titanium diboride ceramic fiber composites for Hall-Heroult cells

    DOE Patents [OSTI]

    Besmann, Theodore M.; Lowden, Richard A.

    1990-01-01

    An improved cathode structure for Hall-Heroult cells for the electrolytic production of aluminum metal. This cathode structure is a preform fiber base material that is infiltrated with electrically conductive titanium diboride using chemical vapor infiltration techniques. The structure exhibits good fracture toughness, and is sufficiently resistant to attack by molten aluminum. Typically, the base can be made from a mat of high purity silicon carbide fibers. Other ceramic or carbon fibers that do not degrade at temperatures below about 1000 deg. C can be used.

  2. ,The Honorable Thomas Henino City Hall Plaza I

    Office of Legacy Management (LM)

    Department of Energy Washington,. DC 20585 MAR 29 1995 ,The Honorable Thomas Henino City Hall Plaza I Boston, Massachusetts 02201 '. ! Dear Mayor Menino: Even though additional involvement by DOE is,not necessary at this site, we are prepared to respond to any concerns you may have. -' : __ if you have any questions,' please feel free to call me eat 301-427li721 or Dr. W. Alexander Willlams (301-427-1719)~of my staff. ' gyp , ,~.&.Qz J ~ J / d .!~a : T- " ames W. Wagoner I -. Secretary

  3. Ion dynamics in an E??B Hall plasma accelerator

    SciTech Connect (OSTI)

    Young, Christopher V. Lucca Fabris, Andrea; Cappelli, Mark A.

    2015-01-26

    We show the time evolution of the ion velocity distribution function in a Hall plasma accelerator during a 20?kHz natural, quasi-periodic plasma oscillation. We apply a time-synchronized laser induced fluorescence technique at different locations along the channel midline, obtaining time- and spatially resolved ion velocity measurements. Strong velocity and density fluctuations and multiple ion populations are observed throughout the so-called breathing mode ionization instability, opening an experimental window into the detailed ion dynamics and physical processes at the heart of such devices.

  4. Topological Hall conductivity of vortex and skyrmion spin textures

    SciTech Connect (OSTI)

    Jalil, M. B. A. Ghee Tan, Seng; Eason, Kwaku; Kong, Jian Feng

    2014-05-07

    We analyze the topological Hall conductivity experienced by conduction electrons whose spins are strongly coupled to axially symmetric spin textures, such as magnetic vortex and skyrmion of types I and II, theoretically by gauge theory, and numerically via micromagnetic simulations. The numerical results are in agreement with the theoretical predictions. Divergence between the two is seen when the vortex/skyrmion core radius is comparable or larger than the element size, and when the skyrmion configuration breaks down at high Dzyaloshinskii-Moriya interaction strength.

  5. Refrigeration Recovery for Experiment Hall High Target Loads

    SciTech Connect (OSTI)

    Peter Knudsen, Venkatarao Ganni, Errol Yuksek, Jonathan Creel

    2010-04-01

    The Qweak experiment at Jefferson Lab (JLab) is a 3000 W hydrogen target scheduled for the summer of 2010 and running for two years until the planned shut-down for 12GeV. The End Station Refrigerator (ESR) supports the three experiment halls, two of which may normally have a hydrogen target. The refrigerator for the ESR is a CTI/Helix 1500 W 4.5-K refrigerator nominally capable of supporting a 1250 W target load at 12 bar and 15-K (plus 1100 W of 4.5-K refrigeration). As such, this refrigerator is not capable of supporting the Qweak experiment target load in its present condition. Additionally, since the installation of an ambient air vaporizer for a single use, two week run duration of a high target load in the summer of 2003 there has been a consistent usage of the Central Helium Liquefier’s (CHL’s) 3 bar 4.5-K helium, supplied via an existing transfer-line to the ESR, for other high target loads. By the fall of 2004, it was apparent that this continued use of CHL’s supercritical helium was routinely being sought by the hall experimenters. As such, a method of refrigeration recovery was proposed to reduce the support required of CHL for these high target loads, including the anticipated Qweak experiment, while utilizing the recovered CHL refrigeration from the target to increase ESR’s 12 bar 15-K capacity.

  6. Hall effect in quantum critical charge-cluster glass

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

    Bozovic, Ivan; Wu, Jie; Bollinger, Anthony T.; Sun, Yujie

    2016-04-04

    Upon doping, cuprates undergo a quantum phase transition from an insulator to a d-wave superconductor. The nature of this transition and of the insulating state is vividly debated. Here, we study the Hall effect in La2-xSrxCuO4 (LSCO) samples doped near the quantum critical point at x ≈ 0.06. Dramatic fluctuations in the Hall resistance appear below TCG ≈ 1.5 K and increase as the sample is cooled down further, signaling quantum critical behavior. We explore the doping dependence of this effect in detail, by studying a combinatorial LSCO library in which the Sr content is varied in extremely fine steps,more » Δx ≈ 0.00008. Furthermore, we observe that quantum charge fluctuations wash out when superconductivity emerges but can be restored when the latter is suppressed by applying a magnetic field, showing that the two instabilities compete for the ground state.« less

  7. Fractionally charged skyrmions in fractional quantum Hall effect

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

    Balram, Ajit C.; Wurstbauer, U.; Wójs, A.; Pinczuk, A.; Jain, J. K.

    2015-11-26

    The fractional quantum Hall effect has inspired searches for exotic emergent topological particles, such as fractionally charged excitations, composite fermions, abelian and nonabelian anyons and Majorana fermions. Fractionally charged skyrmions, which support both topological charge and topological vortex-like spin structure, have also been predicted to occur in the vicinity of 1/3 filling of the lowest Landau level. The fractional skyrmions, however, are anticipated to be exceedingly fragile, suppressed by very small Zeeman energies. Here we show that, slightly away from 1/3 filling, the smallest manifestations of the fractional skyrmion exist in the excitation spectrum for a broad range of Zeemanmore » energies, and appear in resonant inelastic light scattering experiments as well-defined resonances slightly below the long wavelength spin wave mode. The spectroscopy of these exotic bound states serves as a sensitive tool for investigating the residual interaction between composite fermions, responsible for delicate new fractional quantum Hall states in this filling factor region.« less

  8. Hall magnetohydrodynamic reconnection in the plasmoid unstable regime

    SciTech Connect (OSTI)

    Baalrud, S. D.; Bhattacharjee, A.; Huang, Y.-M.; Germaschewski, K.

    2011-09-15

    A set of reduced Hall magnetohydrodynamic (MHD) equations are used to evaluate the stability of large aspect ratio current sheets to the formation of plasmoids (secondary islands). Reconnection is driven by resistivity in this analysis, which occurs at the resistive skin depth d{sub {eta}}{identical_to}S{sub L}{sup -1/2}{radical}(L{nu}{sub A}/{gamma}), where S{sub L} is the Lundquist number, L, the length of the current sheet, {nu}{sub A,} the Alfven speed, and {gamma}, the growth rate. Modifications to a recent resistive MHD analysis [N. F. Loureiro et al., Phys. Plasmas 14, 100703 (2007)] arise when collisions are sufficiently weak that d{sub {eta}} is shorter than the ion skin depth d{sub i}{identical_to}c/{omega}{sub pi}. Secondary islands grow faster in this Hall MHD regime: the maximum growth rate scales as (d{sub i}/L){sup 6/13}S{sub L}{sup 7/13}{nu}{sub A}/L and the number of plasmoids as (d{sub i}/L){sup 1/13}S{sub L}{sup 11/26}, compared to S{sub L}{sup 1/4}{nu}{sub A}/L and S{sup 3/8}, respectively, in resistive MHD.

  9. Sabine Pass, LA Exports to United kingdom Liquefied Natural Gas (Million

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

    Cubic Feet) United kingdom Liquefied Natural Gas (Million Cubic Feet) Sabine Pass, LA Exports to United kingdom Liquefied Natural Gas (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2011 2,862 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 04/29/2016 Next Release Date: 05/31/2016 Referring Pages: U.S. Liquefied Natural Gas Exports by Point of Exit Sabine Pass, LA Liquefied

  10. Price Liquefied Freeport, TX Natural Gas Exports Price to United Kingdom

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

    (Dollars per Thousand Cubic Feet) United Kingdom (Dollars per Thousand Cubic Feet) Price Liquefied Freeport, TX Natural Gas Exports Price to United Kingdom (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's -- -- -- 2010's 7.56 -- -- -- -- - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 04/29/2016 Next Release Date: 05/31/2016 Referring

  11. Liquefied U.S. Natural Gas Exports to United Kingdom (Million Cubic Feet)

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

    United Kingdom (Million Cubic Feet) Liquefied U.S. Natural Gas Exports to United Kingdom (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2010 0 0 0 0 0 0 0 0 0 0 3,379 6,206 2011 2,862 0 0 0 0 0 0 0 0 0 0 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 04/29/2016 Next Release Date: 05/31/2016 Referring Pages: U.S. Liquefied Natural Gas Exports by Point of Exit U.S. Liquefied

  12. Hall MHD Stability and Turbulence in Magnetically Accelerated Plasmas

    SciTech Connect (OSTI)

    H. R. Strauss

    2012-11-27

    The object of the research was to develop theory and carry out simulations of the Z pinch and plasma opening switch (POS), and compare with experimental results. In the case of the Z pinch, there was experimental evidence of ion kinetic energy greatly in excess of the ion thermal energy. It was thought that this was perhaps due to fine scale turbulence. The simulations showed that the ion energy was predominantly laminar, not turbulent. Preliminary studies of a new Z pinch experiment with an axial magnetic field were carried out. The axial magnetic is relevant to magneto - inertial fusion. These studies indicate the axial magnetic field makes the Z pinch more turbulent. Results were also obtained on Hall magnetohydrodynamic instability of the POS.

  13. Quantitative analytical model for magnetic reconnection in hall magnetohydrodynamics

    SciTech Connect (OSTI)

    Simakov, Andrei N

    2008-01-01

    Magnetic reconnection is of fundamental importance for laboratory and naturally occurring plasmas. Reconnection usually develops on time scales which are much shorter than those associated with classical collisional dissipation processes, and which are not fully understood. While such dissipation-independent (or 'fast') reconnection rates have been observed in particle and Hall magnetohydrodynamics (MHD) simulations and predicted analytically in electron MHD, a quantitative analytical theory of fast reconnection valid for arbitrary ion inertial lengths d{sub i} has been lacking. Here we propose such a theory without a guide field. The theory describes two-dimensional magnetic field diffusion regions, provides expressions for the reconnection rates, and derives a formal criterion for fast reconnection in terms of dissipation parameters and di. It also demonstrates that both open X-point and elongated diffusion regions allow dissipation-independent reconnection and reveals a possibility of strong dependence of the reconnection rates on d{sub i}.

  14. The Hall D solenoid helium refrigeration system at JLab

    SciTech Connect (OSTI)

    Laverdure, Nathaniel A.; Creel, Jonathan D.; Dixon, Kelly d.; Ganni, Venkatarao; Martin, Floyd D.; Norton, Robert O.; Radovic, Sasa

    2014-01-01

    Hall D, the new Jefferson Lab experimental facility built for the 12GeV upgrade, features a LASS 1.85 m bore solenoid magnet supported by a 4.5 K helium refrigerator system. This system consists of a CTI 2800 4.5 K refrigerator cold box, three 150 hp screw compressors, helium gas management and storage, and liquid helium and nitrogen storage for stand-alone operation. The magnet interfaces with the cryo refrigeration system through an LN2-shielded distribution box and transfer line system, both designed and fabricated by JLab. The distribution box uses a thermo siphon design to respectively cool four magnet coils and shields with liquid helium and nitrogen. We describe the salient design features of the cryo system and discuss our recent commissioning experience.

  15. Formation of quantum spin Hall state on Si surface and energy gap scaling

    Office of Scientific and Technical Information (OSTI)

    with strength of spin orbit coupling (Journal Article) | SciTech Connect Formation of quantum spin Hall state on Si surface and energy gap scaling with strength of spin orbit coupling Citation Details In-Document Search Title: Formation of quantum spin Hall state on Si surface and energy gap scaling with strength of spin orbit coupling For potential applications in spintronics and quantum computing, it is desirable to place a quantum spin Hall insulator [i.e., a 2D topological insulator

  16. Hall effect in quantum critical charge-cluster glass (Journal Article) |

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect Hall effect in quantum critical charge-cluster glass Citation Details In-Document Search This content will become publicly available on April 4, 2017 Title: Hall effect in quantum critical charge-cluster glass Upon doping, cuprates undergo a quantum phase transition from an insulator to a d-wave superconductor. The nature of this transition and of the insulating state is vividly debated. Here, we study the Hall effect in La2-xSrxCuO4 (LSCO) samples doped near the quantum

  17. Hole carrier in MgB{sub 2} characterized by Hall measurements (Journal

    Office of Scientific and Technical Information (OSTI)

    Article) | SciTech Connect Hole carrier in MgB{sub 2} characterized by Hall measurements Citation Details In-Document Search Title: Hole carrier in MgB{sub 2} characterized by Hall measurements The longitudinal resistivity ({rho}{sub xx}) and Hall coefficient (R{sub H}) were measured for MgB{sub 2} sintered under high pressure. We found that R{sub H} is positive like cuprate high-T{sub c} superconductors, and decreases as the temperature increases for 40 K <T<300K. The cotangent of the

  18. Quantum Anomalous Hall Effect in Hg_1-yMn_yTe Quantum Wells

    SciTech Connect (OSTI)

    Liu, Chao-Xing; Qi, Xiao-Liang; Dai, Xi; Fang, Zhong; Zhang, Shou-Cheng; /Stanford U., Phys. Dept.

    2010-03-19

    The quantum Hall effect is usually observed when the two-dimensional electron gas is subjected to an external magnetic field, so that their quantum states form Landau levels. In this work we predict that a new phenomenon, the quantum anomalous Hall effect, can be realized in Hg{sub 1-y}Mn{sub y}Te quantum wells, without the external magnetic field and the associated Landau levels. This effect arises purely from the spin polarization of the Mn atoms, and the quantized Hall conductance is predicted for a range of quantum well thickness and the concentration of the Mn atoms. This effect enables dissipationless charge current in spintronics devices.

  19. Halls Middle School students get a taste of science at Y-12 | Y-12 National

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

    Security Complex Halls Middle School ... Halls Middle School students get a taste of science at Y-12 Posted: May 21, 2013 - 12:40pm Engineering, science and history experts give Halls Middle School students a taste of science past and present at Y-12. During a visit to the Y-12 National Security Complex on May 20, eighth graders Miller Sullivan, center, and Tyler Young, right, learn what happens to a banana when it is submerged in liquid nitrogen. Darryl Smith, left, was one of four

  20. Formation of quantum spin Hall state on Si surface and energy...

    Office of Scientific and Technical Information (OSTI)

    Citation Details In-Document Search Title: Formation of quantum spin Hall ... GrantContract Number: FG02-04ER46148 Type: Accepted Manuscript Journal Name: Scientific Reports ...

  1. LEDS the focus of Monday's 10 a.m. Town Hall Meeting | OpenEI...

    Open Energy Info (EERE)

    LEDS the focus of Monday's 10 a.m. Town Hall Meeting Home > Blogs > Graham7781's blog Graham7781's picture Submitted by Graham7781(2017) Super contributor 16 November, 2012 - 11:23...

  2. Beam Position Reconstruction for the g2p Experiment in Hall A...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Beam Position Reconstruction for the g2p Experiment in Hall A at Jefferson Lab Citation Details In-Document Search Title: Beam Position Reconstruction for the g2p...

  3. Electron Cross-field Transport in a Low Power Cylindrical Hall Thruster

    SciTech Connect (OSTI)

    A. Smirnov; Y. Raitses; N.J. Fisch

    2004-06-24

    Conventional annular Hall thrusters become inefficient when scaled to low power. Cylindrical Hall thrusters, which have lower surface-to-volume ratio, are therefore more promising for scaling down. They presently exhibit performance comparable with conventional annular Hall thrusters. Electron cross-field transport in a 2.6 cm miniaturized cylindrical Hall thruster (100 W power level) has been studied through the analysis of experimental data and Monte Carlo simulations of electron dynamics in the thruster channel. The numerical model takes into account elastic and inelastic electron collisions with atoms, electron-wall collisions, including secondary electron emission, and Bohm diffusion. We show that in order to explain the observed discharge current, the electron anomalous collision frequency {nu}{sub B} has to be on the order of the Bohm value, {nu}{sub B} {approx} {omega}{sub c}/16. The contribution of electron-wall collisions to cross-field transport is found to be insignificant.

  4. Town Hall Meeting October 1st, 2012 | OpenEI Community

    Open Energy Info (EERE)

    Town Hall Meeting October 1st, 2012 Home > Blogs > Graham7781's blog Graham7781's picture Submitted by Graham7781(2017) Super contributor 19 September, 2012 - 13:40 OpenEI Town...

  5. Formation of quantum spin Hall state on Si surface and energy...

    Office of Scientific and Technical Information (OSTI)

    on Si surface and energy gap scaling with strength of spin orbit coupling Title: Formation of quantum spin Hall state on Si surface and energy gap scaling with strength of spin ...

  6. Formation of quantum spin Hall state on Si surface and energy...

    Office of Scientific and Technical Information (OSTI)

    and energy gap scaling with strength of spin orbit coupling Citation Details In-Document Search Title: Formation of quantum spin Hall state on Si surface and energy gap scaling ...

  7. Engineering quantum anomalous/valley Hall states in graphene via metal-atom

    Office of Scientific and Technical Information (OSTI)

    adsorption: An ab-initio study (Journal Article) | SciTech Connect Engineering quantum anomalous/valley Hall states in graphene via metal-atom adsorption: An ab-initio study Citation Details In-Document Search Title: Engineering quantum anomalous/valley Hall states in graphene via metal-atom adsorption: An ab-initio study Authors: Ding, Jun ; Qiao, Zhenhua ; Feng, Wanxiang ; Yao, Yugui ; Niu, Qian Publication Date: 2011-11-15 OSTI Identifier: 1101181 Type: Publisher's Accepted Manuscript

  8. Fractional quantum spin Hall effect in flat-band checkerboard lattice model

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | SciTech Connect Fractional quantum spin Hall effect in flat-band checkerboard lattice model Citation Details In-Document Search Title: Fractional quantum spin Hall effect in flat-band checkerboard lattice model Authors: Li, Wei ; Sheng, D. N. ; Ting, C. S. ; Chen, Yan Publication Date: 2014-08-04 OSTI Identifier: 1180073 Grant/Contract Number: FG02-06ER46305 Type: Publisher's Accepted Manuscript Journal Name: Physical Review B Additional Journal Information: Journal

  9. Quantum Anomalous Hall Effect in 2D Organic Topological Insulators (Journal

    Office of Scientific and Technical Information (OSTI)

    Article) | SciTech Connect Quantum Anomalous Hall Effect in 2D Organic Topological Insulators Citation Details In-Document Search Title: Quantum Anomalous Hall Effect in 2D Organic Topological Insulators Authors: Wang, Z. F. ; Liu, Zheng ; Liu, Feng Publication Date: 2013-05-06 OSTI Identifier: 1102216 Type: Publisher's Accepted Manuscript Journal Name: Physical Review Letters Additional Journal Information: Journal Volume: 110; Journal Issue: 19; Journal ID: ISSN 0031-9007 Publisher:

  10. Quantum anomalous Hall effect in single-layer and bilayer graphene (Journal

    Office of Scientific and Technical Information (OSTI)

    Article) | SciTech Connect Quantum anomalous Hall effect in single-layer and bilayer graphene Citation Details In-Document Search Title: Quantum anomalous Hall effect in single-layer and bilayer graphene Authors: Tse, Wang-Kong ; Qiao, Zhenhua ; Yao, Yugui ; MacDonald, A. H. ; Niu, Qian Publication Date: 2011-04-26 OSTI Identifier: 1100329 Type: Publisher's Accepted Manuscript Journal Name: Physical Review B Additional Journal Information: Journal Volume: 83; Journal Issue: 15; Journal ID:

  11. Reduced spin-Hall effects from magnetic proximity (Journal Article) | DOE

    Office of Scientific and Technical Information (OSTI)

    PAGES Reduced spin-Hall effects from magnetic proximity « Prev Next » Title: Reduced spin-Hall effects from magnetic proximity Authors: Zhang, Wei ; Jungfleisch, Matthias B. ; Jiang, Wanjun ; Liu, Yaohua ; Pearson, John E. ; Velthuis, Suzanne G. E. te ; Hoffmann, Axel ; Freimuth, Frank ; Mokrousov, Yuriy Publication Date: 2015-03-26 OSTI Identifier: 1176970 Grant/Contract Number: AC02-06CH11357 Type: Publisher's Accepted Manuscript Journal Name: Physical Review B Additional Journal

  12. Performance of the Two Aerogel Cherenkov Detectors of the JLab Hall A

    Office of Scientific and Technical Information (OSTI)

    Hadron Spectrometer (Journal Article) | SciTech Connect Journal Article: Performance of the Two Aerogel Cherenkov Detectors of the JLab Hall A Hadron Spectrometer Citation Details In-Document Search Title: Performance of the Two Aerogel Cherenkov Detectors of the JLab Hall A Hadron Spectrometer We report on the design and commissioning of two silica aerogel Cherenkov detectors with different refractive indices. In particular, extraordinary performance in terms of the number of detected

  13. Scattering universality classes of side jump in the anomalous Hall effect

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | SciTech Connect Scattering universality classes of side jump in the anomalous Hall effect Citation Details In-Document Search Title: Scattering universality classes of side jump in the anomalous Hall effect Authors: Yang, Shengyuan A. ; Pan, Hui ; Yao, Yugui ; Niu, Qian Publication Date: 2011-03-31 OSTI Identifier: 1100161 Type: Publisher's Accepted Manuscript Journal Name: Physical Review B Additional Journal Information: Journal Volume: 83; Journal Issue: 12; Journal

  14. Topological system with a twisting edge band: A position-dependent Hall

    Office of Scientific and Technical Information (OSTI)

    resistance (Journal Article) | SciTech Connect Topological system with a twisting edge band: A position-dependent Hall resistance Citation Details In-Document Search Title: Topological system with a twisting edge band: A position-dependent Hall resistance Authors: Liu, Xuele ; Sun, Qing-feng ; Xie, X. C. Publication Date: 2012-06-27 OSTI Identifier: 1103667 Type: Publisher's Accepted Manuscript Journal Name: Physical Review B Additional Journal Information: Journal Volume: 85; Journal Issue:

  15. EA-1123: Transfer of Normal and Low-Enriched Uranium Billets to the United Kingdom, Hanford Site, Richland, Washington

    Broader source: Energy.gov [DOE]

    This EA evaluates the environmental impacts of the proposal to transfer approximately 710,000 kilograms (1,562,000 pounds) of unneeded normal and low-enriched uranium to the United Kingdom; thus,...

  16. Fractional quantum Hall junctions and two-channel Kondo models

    SciTech Connect (OSTI)

    Sandler, Nancy P.; Fradkin, Eduardo

    2001-06-15

    A mapping between fractional quantum Hall (FQH) junctions and the two-channel Kondo model is presented. We discuss this relation in detail for the particular case of a junction of a FQH state at {nu}=1/3 and a normal metal. We show that in the strong coupling regime this junction has a non-Fermi-liquid fixed point. At this fixed point the electron Green{close_quote}s function has a branch cut and the impurity entropy is equal to S=1/2ln2. We construct the space of perturbations at the strong coupling fixed point and find that the dimension of the tunneling operator is 1/2. These properties are strongly reminiscent of the non-Fermi-liquid fixed points of a number of quantum impurity models, particularly the two-channel Kondo model. However we have found that, in spite of these similarities, the Hilbert spaces of these two systems are quite different. In particular, although in a special limit the Hamiltonians of both systems are the same, their Hilbert spaces are not since they are determined by physically distinct boundary conditions. As a consequence the spectrum of operators in the two problems is different.

  17. Habitat Restoration/Enhancement Fort Hall Reservation : 2008 Annual Report.

    SciTech Connect (OSTI)

    Osborne, Hunter

    2009-07-23

    Habitat enhancement, protection and monitoring were the focus of the Resident Fisheries Program during 2008. Enhancement and protection included sloping, fencing and planting wetlands plugs at sites on Spring Creek (Head-waters). Many previously constructed instream structures (rock barbs and wing dams) were repaired throughout the Fort Hall Indian Reservation (Reservation). Physical sampling during 2008 included sediment and depth measurements (SADMS) in Spring Creek at the Car Removal site. SADMS, used to track changes in channel morphology and specifically track movements of silt through Bottoms stream systems were completed for 5 strata on Spring Creek. Water temperature and chemistry were monitored monthly on Spring Creek, Clear Creek, Diggie Creek, and Portneuf (Jimmy Drinks) and Blackfoot rivers. Fish population densities and biomass were sampled in five reservation streams which included nine sites. Sampling protocols were identical to methods used in past years. Numbers of fish in Spring Creek series remained relatively low, however, there was an increase of biomass overall since 1993. Salmonid fry densities were monitored near Broncho Bridge and were similar to 2006, and 2007, however, as in years past, high densities of macrophytes make it very difficult to see fry in addition to lack of field technicians. Mean catch rate by anglers on Bottoms streams stayed the same as 2007 at 1.5/hr. Numbers of fish larger than 18-inches caught by anglers increased from 2007 at .20 to .26/hr.

  18. Onset of fast reconnection in Hall magnetohydrodynamics mediated by the plasmoid instability

    SciTech Connect (OSTI)

    Huang Yimin; Bhattacharjee, A.; Sullivan, Brian P.

    2011-07-15

    The role of a super-Alfvenic plasmoid instability in the onset of fast reconnection is studied by means of the largest Hall magnetohydrodynamics simulations to date, with system sizes up to 10{sup 4} ion skin depths (d{sub i}). It is demonstrated that the plasmoid instability can facilitate the onset of rapid Hall reconnection, in a regime where the onset would otherwise be inaccessible because the Sweet-Parker width is significantly above d{sub i}. However, the topology of Hall reconnection is not inevitably a single stable X-point. There exists an intermediate regime where the single X-point topology itself exhibits instability, causing the system to alternate between a single X-point geometry and an extended current sheet with multiple X-points produced by the plasmoid instability. Through a series of simulations with various system sizes relative to d{sub i}, it is shown that system size affects the accessibility of the intermediate regime. The larger the system size is, the easier it is to realize the intermediate regime. Although our Hall magnetohydrodynamics (MHD) model lacks many important physical effects included in fully kinetic models, the fact that a single X-point geometry is not inevitable raises the interesting possibility for the first time that Hall MHD simulations may have the potential to realize reconnection with geometrical features similar to those seen in fully kinetic simulations, namely, extended current sheets and plasmoid formation.

  19. Fractional quantum Hall effect at Landau level filling ν = 4/11

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

    Pan, W.; Baldwin, K. W.; West, K. W.; Pfeiffer, L. N.; Tsui, D. C.

    2015-01-09

    In this study, we report low temperature electronic transport results on the fractional quantum Hall effect of composite fermions at Landau level filling ν = 4/11 in a very high mobility and low density sample. Measurements were carried out at temperatures down to 15mK, where an activated magnetoresistance Rxx and a quantized Hall resistance Rxy, within 1% of the expected value of h/(4/11)e2, were observed. The temperature dependence of the Rxx minimum at 4/11 yields an activation energy gap of ~ 7 mK. Developing Hall plateaus were also observed at the neighboring states at ν = 3/8 and 5/13.

  20. Ultra-sensitive Hall sensors based on graphene encapsulated in hexagonal boron nitride

    SciTech Connect (OSTI)

    Dauber, Jan; Stampfer, Christoph; Sagade, Abhay A.; Neumaier, Daniel; Oellers, Martin; Watanabe, Kenji; Taniguchi, Takashi

    2015-05-11

    The encapsulation of graphene in hexagonal boron nitride provides graphene on substrate with excellent material quality. Here, we present the fabrication and characterization of Hall sensor elements based on graphene boron nitride heterostructures, where we gain from high mobility and low charge carrier density at room temperature. We show a detailed device characterization including Hall effect measurements under vacuum and ambient conditions. We achieve a current- and voltage-related sensitivity of up to 5700?V/AT and 3?V/VT, respectively, outpacing state-of-the-art silicon and III/V Hall sensor devices. Finally, we extract a magnetic resolution limited by low frequency electric noise of less than 50 nT/?(Hz) making our graphene sensors highly interesting for industrial applications.

  1. Spin Hall magnetoresistance in CoFe2O4/Pt films

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

    Wu, Hao; Qintong, Zhang; Caihua, Wan; Ali, Syed Shahbaz; Yuan, Zhonghui; You, Lu; Wang, Junling; Choi, Yongseong; Han, Xiufeng

    2015-05-13

    Pulse laser deposition and magnetron sputtering techniques have been employed to prepare MgO(001)//CoFe2O4/Pt samples. Cross section transmission electron microscope results prove that the CoFe2O4 film epitaxially grew along (001) direction. X-ray magnetic circular dichroism results show that magnetic proximity effect in this sample is negligible. Magnetoresistance (MR) properties confirm that spin Hall MR (SMR) dominates in this system. Spin Hall effect-induced anomalous Hall voltage was also observed in this sample. Lastly, these results not only demonstrate the universality of SMR effect but also demonstrate the utility in spintronics of CoFe2O4 as a new type of magnetic insulator.

  2. Global Hall-MHD simulations of magnetorotational instability in a plasma Couette flow experiment

    SciTech Connect (OSTI)

    Ebrahimi, F.; Lefebvre, B.; Bhattacharjee, A.; Forest, C. B.

    2011-06-15

    Global MHD and Hall-MHD numerical simulations relevant to the Madison plasma Couette flow experiment (MPCX) have been performed using the extended MHD code NIMROD. The MPCX has been constructed to study the magnetorotational instability (MRI) in a plasma. The two-fluid Hall effect, which is relevant to some astrophysical situations such as protostellar disks, is also expected to be important in the MPCX. Here, we first derive the local Hall dispersion relation including viscosity, extending earlier work by Balbus and Terquem [Astrophys. J. 552, 235 (2001)]. The predictions of the local analysis are then compared with nonlocal calculations of linear stability of the MRI for a parameter range relevant to the MPCX. It is found that the MHD stability limit and mode structure are altered by the Hall term, and nonlocal analysis is necessary to obtain quantitatively reliable predictions for MPCX. Two-fluid physics also significantly changes the nonlinear evolution and saturation of the axisymmetric MRI. Both the Reynolds and Maxwell stresses contribute significantly to momentum transport. In the Hall regime, when the magnetic field is parallel to the rotation axis, the Maxwell stress is larger than the Reynolds stress (similar to the MHD regime). However, when the magnetic field is antiparallel to the rotation axis in the Hall regime, the Reynolds stress is much larger than the Maxwell stress. To further study the role of non-axisymmetric modes, we have also carried out fully nonlinear MHD computations. Non-axisymmetric modes play an increasingly important role as the magnetic Reynolds number increases and grow to large amplitudes in a saturated turbulent state.

  3. Experimental evidences of a large extrinsic spin Hall effect in AuW alloy

    SciTech Connect (OSTI)

    Laczkowski, P.; Rojas-Sánchez, J.-C.

    2014-04-07

    We report an experimental study of a gold-tungsten alloy (7 at. % W concentration in Au host) displaying remarkable properties for spintronics applications using both magneto-transport in lateral spin valve devices and spin-pumping with inverse spin Hall effect experiments. A very large spin Hall angle of about 10% is consistently found using both techniques with the reliable spin diffusion length of 2 nm estimated by the spin sink experiments in the lateral spin valves. With its chemical stability, high resistivity, and small induced damping, this AuW alloy may find applications in the nearest future.

  4. JLab mourns loss of long-time colleague, Hall B staff scientist and senior

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

    YerPI physicist Kim Egiyan | Jefferson Lab long-time colleague, Hall B staff scientist and senior YerPI physicist Kim Egiyan JLab mourns loss of long-time colleague, Hall B staff scientist and senior YerPI physicist Kim Egiyan August 25, 2006 Kim Egiyan Kim Egiyan K.Sh. Egiyan was born on 18 June 1935 in the Armenian village of Mirzik in the Khanlar region of Azerbaijan. Kim attended the Yerevan State University, Yerevan (Armenia) and in 1957, after finishing his studies at the university,

  5. Observation of the Integer Quantum Hall Effect in Record High-Mobility

    Office of Scientific and Technical Information (OSTI)

    Uniform Wafer-Scale Epitaxial Graphene Films Grown on the Si-Face of 6H-SiC(0001). (Journal Article) | SciTech Connect Observation of the Integer Quantum Hall Effect in Record High-Mobility Uniform Wafer-Scale Epitaxial Graphene Films Grown on the Si-Face of 6H-SiC(0001). Citation Details In-Document Search Title: Observation of the Integer Quantum Hall Effect in Record High-Mobility Uniform Wafer-Scale Epitaxial Graphene Films Grown on the Si-Face of 6H-SiC(0001). Abstract not provided.

  6. Disorder Matters in the 5/2 Fractional Quantum Hall Effect (invited).

    Office of Scientific and Technical Information (OSTI)

    (Conference) | SciTech Connect Disorder Matters in the 5/2 Fractional Quantum Hall Effect (invited). Citation Details In-Document Search Title: Disorder Matters in the 5/2 Fractional Quantum Hall Effect (invited). Abstract not provided. Authors: Pan, Wei Publication Date: 2015-01-01 OSTI Identifier: 1244839 Report Number(s): SAND2015-20724C 555991 DOE Contract Number: AC04-94AL85000 Resource Type: Conference Resource Relation: Conference: Proposed for presentation at the International

  7. Tunable Anderson metal-insulator transition in quantum spin-Hall insulators

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | SciTech Connect Tunable Anderson metal-insulator transition in quantum spin-Hall insulators Citation Details In-Document Search This content will become publicly available on June 3, 2016 Title: Tunable Anderson metal-insulator transition in quantum spin-Hall insulators Authors: Chen, Chui-Zhen ; Liu, Haiwen ; Jiang, Hua ; Sun, Qing-feng ; Wang, Ziqiang ; Xie, X. C. Publication Date: 2015-06-04 OSTI Identifier: 1183777 Grant/Contract Number: FG02-99ER45747 Type:

  8. Understanding the physics of a possible non-Abelian fractional quantum hall

    Office of Scientific and Technical Information (OSTI)

    effect state. (Technical Report) | SciTech Connect SciTech Connect Search Results Technical Report: Understanding the physics of a possible non-Abelian fractional quantum hall effect state. Citation Details In-Document Search Title: Understanding the physics of a possible non-Abelian fractional quantum hall effect state. We wish to present in this report experimental results from a one-year Senior Council Tier-1 LDRD project that focused on understanding the physics of a possible non-Abelian

  9. Equivalence of donor and acceptor fits of temperature dependent Hall carrier density and Hall mobility data: Case of ZnO

    SciTech Connect (OSTI)

    Brochen, Stphane; Feuillet, Guy; Pernot, Julien

    2014-04-28

    In this work, statistical formulations of the temperature dependence of ionized and neutral impurity concentrations in a semiconductor, needed in the charge balance equation and for carrier scattering calculations, have been developed. These formulations have been used in order to elucidate a confusing situation, appearing when compensating acceptor (donor) levels are located sufficiently close to the conduction (valence) band to be thermally ionized and thereby to emit (capture) an electron to (from) the conduction (valence) band. In this work, the temperature dependent Hall carrier density and Hall mobility data adjustments are performed in an attempt to distinguish the presence of a deep acceptor or a deep donor level, coexisting with a shallower donor level and located near the conduction band. Unfortunately, the present statistical developments, applied to an n-type hydrothermal ZnO sample, lead in both cases to consistent descriptions of experimental Hall carrier density and mobility data and thus do not allow to determine the nature, donor or acceptor, of the deep level. This demonstration shows that the emission of an electron in the conduction band, generally assigned to a (0/+1) donor transition from a donor level cannot be applied systematically and could also be attributed to a (?1/0) donor transition from an acceptor level. More generally, this result can be extended for any semiconductor and also for deep donor levels located close to the valence band (acceptor transition)

  10. ,"Liquefied U.S. Natural Gas Re-Exports to United Kingdom (Million Cubic Feet)"

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

    United Kingdom (Million Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Liquefied U.S. Natural Gas Re-Exports to United Kingdom (Million Cubic Feet)",1,"Monthly","2/2016" ,"Release Date:","04/29/2016" ,"Next Release Date:","05/31/2016" ,"Excel File

  11. EECBG Success Story: After 105 Years, Historic City Hall in West Des Moines, Iowa Goes Green

    Broader source: Energy.gov [DOE]

    The city of West Des Moines, Iowa is used funding to renovate the Historic City Hall building located in Valley Junction, including the installation of four geothermal heating wells, a rooftop covered with vegetation, solar panels and permeable pavers to allow stormwater through to the soil below. Learn more.

  12. Structure transitions induced by the Hall term in homogeneous and isotropic magnetohydrodynamic turbulence

    SciTech Connect (OSTI)

    Miura, H., E-mail: miura.hideaki@nifs.ac.jp [Department of Helical Plasma Research, National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292 (Japan); Araki, K. [Faculty of Engineering, Okayama University of Science, 1-1 Ridai-cho, Okayama 700-0005 (Japan)

    2014-07-15

    Hall effects on local structures in homogeneous, isotropic, and incompressible magnetohydrodynamic turbulence are studied numerically. The transition of vortices from sheet-like to tubular structures induced by the Hall term is found, while the kinetic energy spectrum does not distinguish the two types of structures. It is shown by the use of the sharp low-pass filter that the transition occurs not only in the scales smaller than the ion skin depth but also in a larger scale. The transition is related with the forward energy transfer in the spectral space. Analyses by the use of the sharp low-pass filter show that the nonlinear energy transfer associated with the Hall term is dominated by the forward transfer and relatively local in the wave number space. A projection of the simulation data to a Smagorinsky-type sub-grid-scale model shows that the high wave number component of the Hall term may possibly be replaced by the model effectively.

  13. Analysis of Impacts of a Clean Energy Standard as requested by Chairman Hall

    Reports and Publications (EIA)

    2011-01-01

    This report responds to a request from Chairman Ralph M. Hall for an analysis of the impacts of a Clean Energy Standard (CES). The request, as outlined in the letter included in Appendix A, sets out specific assumptions and scenarios for the study.

  14. Newport News School Board Member Hosting Town Hall Thursday (Daily Press) |

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

    Jefferson Lab Newport News School Board Member Hosting Town Hall Thursday (Daily Press) External Link: http://articles.dailypress.com/2012-03-05/news/dp-nws-ednotebook-0305-20120304_1... By jlab_admin on Tue, 2012-03-06

  15. The impact of Hall physics on magnetized high energy density plasma jets

    SciTech Connect (OSTI)

    Gourdain, P.-A.; Seyler, C. E.; Atoyan, L.; Greenly, J. B.; Hammer, D. A.; Kusse, B. R.; Pikuz, S. A.; Potter, W. M.; Schrafel, P. C.; Shelkovenko, T. A.

    2014-05-15

    Hall physics is often neglected in high energy density plasma jets due to the relatively high electron density of such jets (n{sub e}???10{sup 19}?cm{sup ?3}). However, the vacuum region surrounding the jet has much lower densities and is dominated by Hall electric field. This electric field redirects plasma flows towards or away from the axis, depending on the radial current direction. A resulting change in the jet density has been observed experimentally. Furthermore, if an axial field is applied on the jet, the Hall effect is enhanced and ignoring it leads to serious discrepancies between experimental results and numerical simulations. By combining high currents (?1 MA) and magnetic field helicity (15 angle) in a pulsed power generator such as COBRA, plasma jets can be magnetized with a 10?T axial field. The resulting field enhances the impact of the Hall effect by altering the density profile of current-free plasma jets and the stability of current-carrying plasma jets (e.g., Z-pinches)

  16. WIPP Employee Inducted Into Mine Rescue Hall of Fame- WIPP Teams Recognized at National Competition

    Broader source: Energy.gov [DOE]

    CARLSBAD, N.M., August 2, 2013 - Long-time Waste Isolation Pilot Plant (WIPP) employee Gary Kessler was inducted into the Metal/Non-Metal National Mine Rescue Hall of Fame on Aug. 1, 2013 at the biennial mine rescue competition in Reno, Nevada.

  17. September 24, 2014 in 100E Hildebrand Hall | Center for Gas

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

    SeparationsRelevant to Clean Energy Technologies | Blandine Jerome 4, 2014 in 100E Hildebrand Hall Previous Next List Jihye Park (Dept. of Chemistry, Texas A&M University) Photochromic MOFs: Reversible Generation of Singlet Oxygen Kyungmin Choi (Dept. of Chemistry, UC Berkeley) Supercapacitors of Nanocrystalline Metal-Organic Frameworks

  18. Town of Windsor, North Carolina (Utility Company) | Open Energy...

    Open Energy Info (EERE)

    Data Utility Id 20811 Utility Location Yes Ownership M NERC Location SERC NERC SERC Yes RTO PJM Yes Activity Distribution Yes This article is a stub. You can help OpenEI by...

  19. Windsor, New Hampshire: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    County, New Hampshire.1 References US Census Bureau Incorporated place and minor civil division population dataset (All States, all geography) Retrieved from "http:...

  20. East Windsor, Connecticut: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    County, Connecticut.1 References US Census Bureau Incorporated place and minor civil division population dataset (All States, all geography) Retrieved from "http:...

  1. Proceedings of the 1993 Windsor Workshop on Alternative Fuels

    SciTech Connect (OSTI)

    Not Available

    1993-10-01

    This report contains viewgraph papers on the following topics on alternative fuels: availability of alternative fueled engines and vehicles; emerging technologies; overcoming barriers to alternative fuels commercialization; infrastructure issues; and new initiatives in research and development.

  2. West Windsor-Plainsboro High School South wins regional Science...

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

    at PPPL A dramatic ending to High School Bowl sends local team to nationals By Jeanne Jackson DeVoe February 25, 2013 Tweet Widget Google Plus One Share on Facebook Next stop...

  3. Windsor County, Vermont: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    County, Vermont Andover, Vermont Baltimore, Vermont Barnard, Vermont Bethel, Vermont Bridgewater, Vermont Cavendish, Vermont Chester, Vermont Chester-Chester Depot, Vermont...

  4. Enhanced spin Hall effect by electron correlations in CuBi alloys

    SciTech Connect (OSTI)

    Gu, Bo Xu, Zhuo; Mori, Michiyasu; Maekawa, Sadamichi; Ziman, Timothy

    2015-05-07

    A recent experiment in CuBi alloys obtained a large spin Hall angle (SHA) of ?0.24 (Niimi et al., Phys. Rev. Lett. 109, 156602 (2012)). We find that the SHA can be dramatically enhanced by Bi impurities close to the Cu surface. The mechanisms of this enhancement are two-fold. One is that the localized impurity state on surface has a decreased hybridization and combined with Coulomb correlation effect. The other comes from the low-dimensional state of conduction electrons on surface, which results in a further enhancement of skew scattering by impurities. Furthermore, we note that a discrepancy in sign of SHA between the experiment and previous theories is simply caused by different definitions of SHA. This re-establishes skew scattering as the essential mechanism underlying the spin Hall effect in CuBi alloys.

  5. Edge-channel interferometer at the graphene quantum Hall pn junction

    SciTech Connect (OSTI)

    Morikawa, Sei; Moriya, Rai; Masubuchi, Satoru Machida, Tomoki; Watanabe, Kenji; Taniguchi, Takashi

    2015-05-04

    We demonstrate a quantum Hall edge-channel interferometer in a high-quality graphene pn junction under a high magnetic field. The co-propagating p and n quantum Hall edge channels traveling along the pn interface functions as a built-in Aharonov-Bohm-type interferometer, the interferences in which are sensitive to both the external magnetic field and the carrier concentration. The trajectories of peak and dip in the observed resistance oscillation are well reproduced by our numerical calculation that assumes magnetic flux quantization in the area enclosed by the co-propagating edge channels. Coherent nature of the co-propagating edge channels is confirmed by the checkerboard-like pattern in the dc-bias and magnetic-field dependences of the resistance oscillations.

  6. Sheath oscillation characteristics and effect on near-wall conduction in a krypton Hall thruster

    SciTech Connect (OSTI)

    Zhang, Fengkui Kong, Lingyi; Li, Chenliang; Yang, Haiwei; Li, Wei

    2014-11-15

    Despite its affordability, the krypton Hall-effect thruster in applications always had problems in regard to performance. The reason for this degradation is studied from the perspective of the near-wall conductivity of electrons. Using the particle-in-cell method, the sheath oscillation characteristics and its effect on near-wall conduction are compared in the krypton and xenon Hall-effect thrusters both with wall material composed of BNSiO{sub 2}. Comparing these two thrusters, the sheath in the krypton-plasma thruster will oscillate at low electron temperatures. The near-wall conduction current is only produced by collisions between electrons and wall, thereby causing a deficiency in the channel current. The sheath displays spatial oscillations only at high electron temperature; electrons are then reflected to produce the non-oscillation conduction current needed for the krypton-plasma thruster. However, it is accompanied with intensified oscillations.

  7. Variational principle for linear stability of flowing plasmas in Hall magnetohydrodynamics

    SciTech Connect (OSTI)

    Hirota, M.; Yoshida, Z.; Hameiri, E.

    2006-02-15

    Linear stability of equilibrium states with flow is studied by means of the variational principle in Hall magnetohydrodynamics (MHD). The Lagrangian representation of the linearized Hall MHD equation is performed by considering special perturbations that preserves some constants of motion (the Casimir invariants). The resultant equation has a Hamiltonian structure which enables the variational principle. There is however some difficulties in showing the positive definiteness of the quadratic form in the presence of flow. The dynamically accessible variation is a more restricted class of perturbations which, by definition, preserves all the Casimir invariants. For such variations, the quadratic form (the second variation of Hamiltonian) can be positive definite. Some conditions for stability are derived by applying this variational principle to the double Beltrami equilibrium.

  8. Minimum energy states of the cylindrical plasma pinch in single-fluid and Hall magnetohydrodynamics

    SciTech Connect (OSTI)

    Khalzov, I. V.; Schnack, D. D.; Mirnov, V. V.; Ebrahimi, F.

    2012-01-15

    Relaxed states of a plasma column are found analytically in single-fluid and Hall magnetohydrodynamics (MHD). We perform complete minimization of the energy with constraints imposed by invariants inherent in the corresponding models. It is shown that the relaxed state in Hall MHD is a force-free magnetic field with uniform axial flow and/or rigid azimuthal rotation. In contrast, the relaxed states in single-fluid MHD are more complex due to the coupling between velocity and magnetic field. Cylindrically and helically symmetric relaxed states are considered for both models. Helical states may be time dependent and analogous to helical waves, propagating on a cylindrically symmetric background. Application of our results to reversed-field pinches (RFP) is discussed. The radial profile of the parallel momentum predicted by the single-fluid MHD relaxation theory is shown to be in reasonable agreement with experimental observation from the Madison symmetric torus RFP experiment.

  9. A spin-filter made of quantum anomalous Hall insulator nanowires

    SciTech Connect (OSTI)

    Wu, Jiansheng

    2014-07-28

    Topological end states (TES) in quantum anomalous Hall insulator nanowires can induce tunneling within the gap. Such TES are spin polarized, thus the induced current is spin polarized as well, which can be used to construct a spin-filter applied in spintronics. An interferometry device is designed to control the polarized current as well. The advantage and finite size effect on this system are discussed.

  10. The Honorable Rudolph Giuliani City Hall New York, New York 10007

    Office of Legacy Management (LM)

    Deparhent of Eneigy Washington, DC 20585 ,, , The Honorable Rudolph Giuliani City Hall New York, New York 10007 Dear Mayor Giuljani: :. / Secretary of Energy Hazel O'Leary has announced- a new approach to opennes ', -the Department of Energy (DOE).and,its communications with the public.- I support of this initiative, we are pleased to forward the enclosed inforo related to the Ledoux and Co. site in your jurisdiction that performed wa for DOE's predecessor agencies. 'information, use, and

  11. February 26, 2014 in 100E Hildebrand Hall | Center for Gas

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

    SeparationsRelevant to Clean Energy Technologies | Blandine Jerome February 26, 2014 in 100E Hildebrand Hall Previous Next List Dawei Feng (Dept. of Chemistry, Texas A&M University) Alkylamine-Tethered Porous Polymer Networks for CO2 Capture Walter Drisdell (Materials Sciences Division, LBNL) Investigating CO2 Adsorption in an Amine-Appended Metal-Organic Framework using NEXAFS Spectroscopy

  12. Building America Top Innovations Hall of Fame Profile … Ducts in Conditioned Space

    Energy Savers [EERE]

    A duct chase in a dropped hallway ceiling provides an affordable way to put ducts in conditioned space, a technique that saves energy and improves indoor air quality. Moving ductwork into the home's conditioned space can save 8%-15% on homeowner air-conditioning bills. Thousands of homes are now applying this important best practice promoted by Building America research. BUILDING AMERICA TOP INNOVATIONS HALL OF FAME PROFILE INNOVATIONS CATEGORY: 1. Advanced Technologies and Practices 1.1

  13. Building America Top Innovations Hall of Fame Profile … Low-Cost Ventilation in Production Housing

    Energy Savers [EERE]

    simple, cost-effective techniques for providing fresh air throughout the home, including exhaust-only and central fan-integrated supply ventilation. Building America has refined simple whole-house ventilation systems that cost less than $350 to install. BUILDING AMERICA TOP INNOVATIONS HALL OF FAME PROFILE INNOVATIONS CATEGORY: 1. Advanced Technologies and Practices 1.3 Assured Health, Safety, and Durability Low-Cost Ventilation in Production Housing As high-performance homes get more air-tight

  14. Hall-effect-controlled gas dynamics in protoplanetary disks. I. Wind solutions at the inner disk

    SciTech Connect (OSTI)

    Bai, Xue-Ning

    2014-08-20

    The gas dynamics of protoplanetary disks (PPDs) is largely controlled by non-ideal magnetohydrodynamic (MHD) effects including Ohmic resistivity, the Hall effect, and ambipolar diffusion. Among these the role of the Hall effect is the least explored and most poorly understood. In this series, we have included, for the first time, all three non-ideal MHD effects in a self-consistent manner to investigate the role of the Hall effect on PPD gas dynamics using local shearing-box simulations. In this first paper, we focus on the inner region of PPDs, where previous studies (Bai and Stone 2013; Bai 2013) excluding the Hall effect have revealed that the inner disk up to ?10 AU is largely laminar, with accretion driven by a magnetocentrifugal wind. We confirm this basic picture and show that the Hall effect modifies the wind solutions depending on the polarity of the large-scale poloidal magnetic field B{sub 0} threading the disk. When B{sub 0}??>0, the horizontal magnetic field is strongly amplified toward the disk interior, leading to a stronger disk wind (by ?50% or less in terms of the wind-driven accretion rate). The enhanced horizontal field also leads to much stronger large-scale Maxwell stress (magnetic braking) that contributes to a considerable fraction of the wind-driven accretion rate. When B{sub 0}??<0, the horizontal magnetic field is reduced, leading to a weaker disk wind (by ? 20%) and negligible magnetic braking. Under fiducial parameters, we find that when B{sub 0}??>0, the laminar region extends farther to ?10-15 AU before the magnetorotational instability sets in, while for B{sub 0}??<0, the laminar region extends only to ?3-5 AU for a typical accretion rate of ?10{sup 8} to10{sup 7} M {sub ?} yr{sup 1}. Scaling relations for the wind properties, especially the wind-driven accretion rate, are provided for aligned and anti-aligned field geometries.

  15. Field effect in the quantum Hall regime of a high mobility graphene wire

    SciTech Connect (OSTI)

    Barraud, C., E-mail: cbarraud@phys.ethz.ch, E-mail: clement.barraud@univ-paris-diderot.fr; Choi, T.; Ihn, T.; Ensslin, K. [Solid State Physics Laboratory, ETH Zrich, CH-8093 Zrich (Switzerland); Butti, P.; Shorubalko, I. [Swiss Federal Laboratories of Materials Science and Technologies, EMPA Elect. Metrol. Reliabil. Lab., CH-8600 Dbendorf (Switzerland); Taniguchi, T.; Watanabe, K. [National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044 (Japan)

    2014-08-21

    In graphene-based electronic devices like in transistors, the field effect applied thanks to a gate electrode allows tuning the charge density in the graphene layer and passing continuously from the electron to the hole doped regime across the Dirac point. Homogeneous doping is crucial to understand electrical measurements and for the operation of future graphene-based electronic devices. However, recently theoretical and experimental studies highlighted the role of the electrostatic edge due to fringing electrostatic field lines at the graphene edges [P. Silvestrov and K. Efetov, Phys. Rev. B 77, 155436 (2008); F. T. Vasko and I. V. Zozoulenko, Appl. Phys. Lett. 97, 092115 (2010)]. This effect originates from the particular geometric design of the samples. A direct consequence is a charge accumulation at the graphene edges giving a value for the density, which deviates from the simple picture of a plate capacitor and also varies along the width of the graphene sample. Entering the quantum Hall regime would, in principle, allow probing this accumulation thanks to the extreme sensitivity of this quantum effect to charge density and the charge distribution. Moreover, the presence of an additional and counter-propagating edge channel has been predicted [P. Silvestrov and K. Efetov, Phys. Rev. B 77, 155436 (2008)] giving a fundamental aspect to this technological issue. In this article, we investigate this effect by tuning a high mobility graphene wire into the quantum Hall regime in which charge carriers probe the electrostatic potential at high magnetic field close to the edges. We observe a slight deviation to the linear shift of the quantum Hall plateaus with magnetic field and we study its evolution for different filling factors, which correspond to different probed regions in real space. We discuss the possible origins of this effect including an increase of the charge density towards the edges.

  16. Recent results and challenges in development of metallic Hall sensors for fusion reactors

    SciTech Connect (OSTI)

    ?uran, Ivan; Mulek, Radek; Kova?k, Karel; Sentkerestiov, Jana; Kohout, Michal

    2014-08-21

    Reliable and precise diagnostic of local magnetic field is crucial for successful operation of future thermonuclear fusion reactors based on magnetic confinement. Magnetic sensors at these devices will experience an extremely demanding operational environment with large radiation and thermal loads in combination with required long term, reliable, and service-free performance. Neither present day commercial nor laboratory measurement systems comply with these requirements. Metallic Hall sensors based on e.g. copper or bismuth could potentially satisfy these needs. We present the technology for manufacturing of such sensors and some initial results on characterization of their properties.

  17. AC-magnetotransport of a 2DEG in the quantum Hall regime

    SciTech Connect (OSTI)

    Hernndez, C.; Chaubet, C.

    2014-05-15

    In this paper we present an ac-magneto-transport study of a two-dimensional electron gas (2DEG) in the quantum Hall effect (QHE) regime, for frequencies in the range [100Hz, 1MHz]. We present a new approach to understand admittance measurements based in the Landauer-Buttiker formalism for QHE edge channels and taking into account the capacitance and the topology of the cables connected to the contacts used in the measurements. Our model predicts an universal behavior with the a-dimensional parameter RC? where R is the 2 wires resistance of the 2DEG, C the capacitance cables and the angular frequency, in agreement with experiments.

  18. The Honoradle':Rudolf Juiliani City'Hall New York, New York I0007

    Office of Legacy Management (LM)

    1 / .' Department oft Endrgy :. ' . ' . Wasthgton, DC 20585 ' ,,' . .' . . _ s ,' FEi,l 6 jg& ,. . . ' I s. i ,-' .' / ,, -. ,. The Honoradle':Rudolf Juiliani City'Hall New York, New York I0007 i ', 1" Dear MayorJuilianiz ,. : ", ,. Secretary'of,Energy,Hazel O'Leary has announced a new approach to openness'in the, Department of Energy (DOE)and its communications with the public-~ :'In support of this initiative,, we are pleased to .forward,the'enclpsed. information related.to the

  19. Upgraded photon calorimeter with integrating readout for Hall A Compton Polarimeter at Jefferson Lab

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

    Friend, M.; Parno, D.; Benmokhtar, F.; Camsonne, A.; Dalton, M. M.; Franklin, G. B.; Mamyan, V.; Michaels, R.; Nanda, S.; Nelyubin, V.; et al

    2012-06-01

    The photon arm of the Compton polarimeter in Hall A of Jefferson Lab has been upgraded to allow for electron beam polarization measurements with better than 1% accuracy. The data acquisition system (DAQ) now includes an integrating mode, which eliminates several systematic uncertainties inherent in the original counting-DAQ setup. The photon calorimeter has been replaced with a Ce-doped Gd2SiO5 crystal, which has a bright output and fast response, and works well for measurements using the new integrating method at electron beam energies from 1 to 6 GeV.

  20. Quantum Hall effect in HgTe quantum wells at nitrogen temperatures

    SciTech Connect (OSTI)

    Kozlov, D. A. Kvon, Z. D.; Mikhailov, N. N.; Dvoretskii, S. A.; Weishupl, S.; Krupko, Y.; Portal, J.-C.

    2014-09-29

    We report on the observation of quantized Hall plateaus in a system of two-dimensional Dirac fermions, implemented in a 6.6?nm HgTe quantum well at magnetic fields up to 34?T at nitrogen temperatures. The activation energies determined from the temperature dependence of the longitudinal resistivity are found to be almost equal for the filling factors ? of 1 and 2. This indicates that the large values of the g-factor (about 3040) remain unchanged at very strong magnetic fields.

  1. Gracie Hall

    Broader source: Energy.gov [DOE]

    Gracie is a student representative to the board for FY 2013-14. She is a senior at Oak Ridge High School, where she is a member of the National Honor Society, the Oak Ridge High School marching and...

  2. Spin Hall magnetoresistance in CoFe2O4/Pt films

    SciTech Connect (OSTI)

    Wu, Hao; Qintong, Zhang; Caihua, Wan; Ali, Syed Shahbaz; Yuan, Zhonghui; You, Lu; Wang, Junling; Choi, Yongseong; Han, Xiufeng

    2015-05-13

    Pulse laser deposition and magnetron sputtering techniques have been employed to prepare MgO(001)//CoFe2O4/Pt samples. Cross section transmission electron microscope results prove that the CoFe2O4 film epitaxially grew along (001) direction. X-ray magnetic circular dichroism results show that magnetic proximity effect in this sample is negligible. Magnetoresistance (MR) properties confirm that spin Hall MR (SMR) dominates in this system. Spin Hall effect-induced anomalous Hall voltage was also observed in this sample. Lastly, these results not only demonstrate the universality of SMR effect but also demonstrate the utility in spintronics of CoFe2O4 as a new type of magnetic insulator.

  3. Environmental assessment: Transfer of normal and low-enriched uranium billets to the United Kingdom, Hanford Site, Richland, Washington

    SciTech Connect (OSTI)

    1995-11-01

    Under the auspices of an agreement between the U.S. and the United Kingdom, the U.S. Department of Energy (DOE) has an opportunity to transfer approximately 710,000 kilograms (1,562,000 pounds) of unneeded normal and low-enriched uranium (LEU) to the United Kingdom; thus, reducing long-term surveillance and maintenance burdens at the Hanford Site. The material, in the form of billets, is controlled by DOE`s Defense Programs, and is presently stored as surplus material in the 300 Area of the Hanford Site. The United Kingdom has expressed a need for the billets. The surplus uranium billets are currently stored in wooden shipping containers in secured facilities in the 300 Area at the Hanford Site (the 303-B and 303-G storage facilities). There are 482 billets at an enrichment level (based on uranium-235 content) of 0.71 weight-percent. This enrichment level is normal uranium; that is, uranium having 0.711 as the percentage by weight of uranium-235 as occurring in nature. There are 3,242 billets at an enrichment level of 0.95 weight-percent (i.e., low-enriched uranium). This inventory represents a total of approximately 532 curies. The facilities are routinely monitored. The dose rate on contact of a uranium billet is approximately 8 millirem per hour. The dose rate on contact of a wooden shipping container containing 4 billets is approximately 4 millirem per hour. The dose rate at the exterior of the storage facilities is indistinguishable from background levels.

  4. Energy Efficiency Improvements to Wundar Hall, a Historic Building on the Concordia Campus, Milwaukee, Wisconsin

    SciTech Connect (OSTI)

    Karman, Nathan

    2012-11-29

    The Forest County Potawatomi Community (??FCPC? or ??Community?) implemented energy efficiency improvements to revitalize Wundar Hall, a 34,000 square foot (??SF?) building that was formerly used as a dormitory and is listed on the National Registry of Historic Places, into an office building. Wundar Hall is the first of many architecturally and historically significant buildings that the Community hopes to renovate at the former Concordia College campus, property on the near west side of Milwaukee that was taken into trust for the Community by the United States on July 10, 1990 (collectively, the ??Concordia Trust Property?). As part of this project, which was conducted with assistance from the Department of Energy??s Tribal Energy Program (??TEP?), the Community updated and/or replaced the building envelope, mechanical systems, the plumbing system, the electrical infrastructure, and building control systems. The project is expected to reduce the building??s natural gas consumption by 58% and the electricity consumption by 55%. In addition, the project was designed to act as a catalyst to further renovation of the Concordia Trust Property and the neighborhood. The City of Milwaukee has identified redevelopment of the Concordia Trust Property as a ??Catalytic Project? for revitalizing the near west side. The Tribe envisions a revitalized, mixed-use campus of community services, education, and economic development??providing services to the Indian community and jobs to the neighborhood.

  5. Beta (β) tungsten thin films: Structure, electron transport, and giant spin Hall effect

    SciTech Connect (OSTI)

    Hao, Qiang; Chen, Wenzhe; Xiao, Gang

    2015-05-04

    We use a simple magnetron sputtering process to fabricate beta (β) tungsten thin films, which are capable of generating giant spin Hall effect. As-deposited thin films are always in the metastable β-W phase from 3.0 to 26.7 nm. The β-W phase remains intact below a critical thickness of 22.1 nm even after magnetic thermal annealing at 280 °C, which is required to induce perpendicular magnetic anisotropy (PMA) in a layered structure of β-W/Co{sub 40}Fe{sub 40}B{sub 20}/MgO. Intensive annealing transforms the thicker films (>22.1 nm) into the stable α-W phase. We analyze the structure and grain size of both β- and α-W thin films. Electron transport in terms of resistivity and normal Hall effect is studied over a broad temperature range of 10 K to at least 300 K on all samples. Very low switching current densities are achieved in β-W/Co{sub 40}Fe{sub 40}B{sub 20}/MgO with PMA. These basic properties reveal useful behaviors in β-W thin films, making them technologically promising for spintronic magnetic random access memories and spin-logic devices.

  6. Source and Extraction for Simultaneous Four-hall Beam Delivery System at CEBAF

    SciTech Connect (OSTI)

    Kazimi, Reza; Wang, Haipeng; Spata, Mike F.; Hansknecht, John C.

    2013-06-01

    A new design for simultaneous delivery of the electron beam to all four 12 GeV CEBAF experimental halls* requires a new 750 MHz RF separator system in the 5th pass extraction region, a 250 MHz repetition rate for its beams, and addition of a fourth laser at the photo-cathode gun. The proposed system works in tandem with the existing 500 MHz RF separators and beam repetition rate on the lower passes. The new 5th pass RF separators will have the same basic design but modified to run at 750 MHz. The change to the beam repetition rate will be at the photo-cathode gun through an innovative upgrade of the seed laser driver system using electro-optic modulators. The new laser system also allows addition of the fourth laser. The new RF separators, the new laser system and other hardware changes required to implement the Four-Hall operation delivery system will be discussed in this paper.

  7. Temperature-driven band inversion in Pb?.??Sn?.??Se: Optical and Hall-effect studies

    SciTech Connect (OSTI)

    Anand, Naween; Gu, Genda; Buvaev, Sanal; Hebard, A. F.; Tanner, D. B.; Chen, Zhiguo; Li, Zhiqiang; Choudhary, Kamal; Sinnott, S. B.; Martin, C.

    2014-12-23

    Optical and Hall-effect measurements have been performed on single crystals of Pb?.??Sn?.??Se, a IV-VI mixed chalcogenide. The temperature dependent (10300 K) reflectance was measured over 407000 cm? (5870 meV) with an extension to 15,500 cm? (1.92 eV) at room temperature. The reflectance was fit to the Drude-Lorentz model using a single Drude component and several Lorentz oscillators. The optical properties at the measured temperatures were estimated via Kramers-Kronig analysis as well as by the Drude-Lorentz fit. The carriers were p-type with the carrier density determined by Hall measurements. A signature of valence intraband transition is found in the low-energy optical spectra. It is found that the valence-conduction band transition energy as well as the free carrier effective mass reach minimum values at 100 K, suggesting temperature-driven band inversion in the material. Density function theory calculation for the electronic band structure also make similar predictions.

  8. Temperature-driven band inversion in Pb?.??Sn?.??Se: Optical and Hall-effect studies

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

    Anand, Naween; Gu, Genda; Buvaev, Sanal; Hebard, A. F.; Tanner, D. B.; Chen, Zhiguo; Li, Zhiqiang; Choudhary, Kamal; Sinnott, S. B.; Martin, C.

    2014-12-23

    Optical and Hall-effect measurements have been performed on single crystals of Pb?.??Sn?.??Se, a IV-VI mixed chalcogenide. The temperature dependent (10300 K) reflectance was measured over 407000 cm? (5870 meV) with an extension to 15,500 cm? (1.92 eV) at room temperature. The reflectance was fit to the Drude-Lorentz model using a single Drude component and several Lorentz oscillators. The optical properties at the measured temperatures were estimated via Kramers-Kronig analysis as well as by the Drude-Lorentz fit. The carriers were p-type with the carrier density determined by Hall measurements. A signature of valence intraband transition is found in the low-energy opticalmorespectra. It is found that the valence-conduction band transition energy as well as the free carrier effective mass reach minimum values at 100 K, suggesting temperature-driven band inversion in the material. Density function theory calculation for the electronic band structure also make similar predictions.less

  9. Resonant cavity mode dependence of anomalous and inverse spin Hall effect

    SciTech Connect (OSTI)

    Kim, Sang-Il; Seo, Min-Su; Park, Seung-young

    2014-05-07

    The direct current electric voltage induced by the Inverse Spin Hall Effect (ISHE) and Anomalous Hall Effect (AHE) was investigated in the TE{sub 011} and TE{sub 102} cavities. The ISHE and AHE components were distinguishable through the fitting of the voltage spectrum. The unwanted AHE was minimized by placing the DUT (Device Under Test) at the center of both the TE{sub 011} and TE{sub 102} cavities. The voltage of ISHE in the TE{sub 011} cavity was larger than that in the TE{sub 102} cavity due to the higher quality factor of the former. Despite optimized centering, AHE voltage from TE{sub 011} cavity was also higher. The reason was attributed to the E-field distribution inside the cavity. In the case of the TE{sub 011} cavity, the DUT was easily exposed to the E-field in all directions. Therefore, the parasitic AHE voltage in the TE{sub 102} cavity was less sensitive than that in the TE{sub 011} cavity to decentering problem.

  10. Structure of intermediate shocks in collisionless anisotropic Hall-magnetohydrodynamics plasma models

    SciTech Connect (OSTI)

    Snchez-Arriaga, G.

    2013-10-15

    The existence of discontinuities within the double-adiabatic Hall-magnetohydrodynamics (MHD) model is discussed. These solutions are transitional layers where some of the plasma properties change from one equilibrium state to another. Under the assumption of traveling wave solutions with velocity C and propagation angle ? with respect to the ambient magnetic field, the Hall-MHD model reduces to a dynamical system and the waves are heteroclinic orbits joining two different fixed points. The analysis of the fixed points rules out the existence of rotational discontinuities. Simple considerations about the Hamiltonian nature of the system show that, unlike dissipative models, the intermediate shock waves are organized in branches in parameter space, i.e., they occur if a given relationship between ? and C is satisfied. Electron-polarized (ion-polarized) shock waves exhibit, in addition to a reversal of the magnetic field component tangential to the shock front, a maximum (minimum) of the magnetic field amplitude. The jumps of the magnetic field and the relative specific volume between the downstream and the upstream states as a function of the plasma properties are presented. The organization in parameter space of localized structures including in the model the influence of finite Larmor radius is discussed.

  11. Tune In To Our Online Town Hall With Sec. Chu at 12:45PM EST | Department

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

    of Energy Tune In To Our Online Town Hall With Sec. Chu at 12:45PM EST Tune In To Our Online Town Hall With Sec. Chu at 12:45PM EST January 26, 2011 - 8:35am Addthis Ginny Simmons Ginny Simmons Former Managing Editor for Energy.gov, Office of Public Affairs During the State of the Union address last night, President Obama placed the national spotlight on clean energy, saying that "we need to out-innovate, out-educate, and out-build the rest of the world," and that we must invest in

  12. Comparison of two data acquisition and processing systems of Moller polarimeter in Hall A of Jefferson Lab

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

    Vereshchaka, Vadym V.; Glamazdin, Oleksandr V.; Pomatsalyuk, Roman I.

    2014-07-01

    Two data acquisition and processing systems are used simultaneously to measure electron beam polarization by Moller polarimeter in Hall A of Jefferson Lab (Newport News, VA, USA). The old system (since 1997) is fully functional, but is not repairable in case of malfunction (system modules arenot manufactured anymore). The new system (since 2010) based on flash-ADC is more accurate, but currently requires more detailed adjustment and further improvement. Description and specifications of two data acquisition and processing systems have been given. The results of polarization measurements during experiments conducted in Hall A from 2010 to 2012 are compared.

  13. Comparison of two data acquisition and processing systems of Moller polarimeter in Hall A of Jefferson Lab

    SciTech Connect (OSTI)

    Vereshchaka, Vadym V.; Glamazdin, Oleksandr V.; Pomatsalyuk, Roman I.

    2014-07-01

    Two data acquisition and processing systems are used simultaneously to measure electron beam polarization by Moller polarimeter in Hall A of Jefferson Lab (Newport News, VA, USA). The old system (since 1997) is fully functional, but is not repairable in case of malfunction (system modules arenot manufactured anymore). The new system (since 2010) based on flash-ADC is more accurate, but currently requires more detailed adjustment and further improvement. Description and specifications of two data acquisition and processing systems have been given. The results of polarization measurements during experiments conducted in Hall A from 2010 to 2012 are compared.

  14. Exploration of deeply virtual Compton scattering on the neutron in the Hall A of Jefferson Laboratory

    SciTech Connect (OSTI)

    Malek Mazouz

    2006-12-08

    Generalized Parton Distributions (GPDs) are universal functions which provide a comprehensive description of hadron properties in terms of quarks and gluons. Deeply Virtual Compton Scattering (DVCS) is the simplest hard exclusive process involving GPDs. In particular, the DVCS on the neutron is mostly sensitive to E, the less constrained GPD, wich allows to access to the quark angular momentum. The first dedicated DVCS experiment on the neutron ran in the Hall A of Jefferson Lab in fall 2004. The high luminosity of the experiment and the resulting background rate recquired specific devices which are decribed in this document. The analysis methods and the experiment results, leading to preliminary constraints on the GPD E, are presented.

  15. Robustness of fractional quantum Hall states with dipolar atoms in artificial gauge fields

    SciTech Connect (OSTI)

    Grass, T.; Baranov, M. A.; Lewenstein, M.

    2011-10-15

    The robustness of fractional quantum Hall states is measured as the energy gap separating the Laughlin ground state from excitations. Using thermodynamic approximations for the correlation functions of the Laughlin state and the quasihole state, we evaluate the gap in a two-dimensional system of dipolar atoms exposed to an artificial gauge field. For Abelian fields, our results agree well with the results of exact diagonalization for small systems but indicate that the large value of the gap predicted [Phys. Rev. Lett. 94, 070404 (2005)] was overestimated. However, we are able to show that the small gap found in the Abelian scenario dramatically increases if we turn to non-Abelian fields squeezing the Landau levels.

  16. EX/P5-4 Two-Fluid Hall Effect on Plasma Relaxation

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

    EX/P5-4 Two-Fluid Hall Effect on Plasma Relaxation in a High-Temperature Plasma W.X. Ding 1,3), V. Mirnov 2,3), A. F. Almagri 2,3), D.L. Brower 1,3), D. Craig 2,3), B.H. Deng 1,3), D. J. Den Hartog 2,3) , G. Fiksel 2,3), C.C. Hegna 2,3), S.C. Prager 2,3), J.S. Sarff 2,3) 1) University of California, Los Angeles, California 90095 USA 2) University of Wisconsin-Madison, Madison, Wisconsin 53706 USA 3) The Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas e-mail contact

  17. Optimized electrode placement along the channel of a Hall thruster for ion focusing

    SciTech Connect (OSTI)

    Qing, Shaowei, E-mail: qshaowei@gmail.com [Power Engineering Institute, Chongqing University, Chongqing 400044 (China); E, Peng [Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150001 (China); Xia, Guangqing [State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024 (China); Tang, Ming-Chun [College of Communication Engineering, Chongqing University, Chongqing 400044 (China); Duan, Ping [School of Physics, Dalian Maritime University, Dalian 116026 (China)

    2014-01-21

    An optimal placement of the segmented electrode for increasing the lifetime of the Aton-type Hall thruster, i.e., reducing the plume divergence, is demonstrated using a 2D3V fully kinetic Particle-in-Cell method. Segmented electrodes, embedded near the ionization region of non-segmented case and biased above anode potential, lead to an increased separation between the ionization and acceleration regions and the formation of an efficient acceleration electric field configuration as potential lens. Due to this electrode placement, the sheath near the ceramic walls of the acceleration region is collapsed and an excellent ion beam focusing is demonstrated. The potential contour pockets around the electrodes and the sheath collapse phenomenon are also discussed.

  18. Commissioning and Testing the 1970's Era LASS Solenoid Magnet in JLab's Hall D

    SciTech Connect (OSTI)

    Ballard, Joshua T.; Biallas, George H.; Brown, G.; Butler, David E.; Carstens, Thomas J.; Chudakov, Eugene A.; Creel, Jonathan D.; Egiyan, Hovanes; Martin, F.; Qiang, Yi; Smith, Elton S.; Stevens, Mark A.; Spiegel, Scot L.; Whitlatch, Timothy E.; Wolin, Elliott J.; Ghoshal, Probir K.

    2015-06-01

    JLab refurbished and reconfigured the LASS1, 1.85m bore Solenoid and installed it as the principal analysis magnet for nuclear physics in the newly constructed, Hall D at Jefferson Lab. The magnet contains four superconducting coils within an iron yoke. The magnet was built in the early1970's at Stanford Linear Accelerator Center and used a second time at Los Alamos National Laboratory. The coils were extensively refurbished and individually tested by JLab. A new Cryogenic Distribution Box provides cryogens and their control valving, current distribution bus, and instrumentation pass-through. A repurposed CTI 2800 refrigerator system and new transfer line complete the system. We describe the re-configuration, the process and problems of re-commissioning the magnet and the results of testing the completed magnet.

  19. Record surface state mobility and quantum Hall effect in topological insulator thin films via interface engineering

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

    Koirala, Nikesh; Han, Myung -Geun; Brahlek, Matthew; Salehi, Maryam; Wu, Liang; Dai, Jixia; Waugh, Justin; Nummy, Thomas; Moon, Jisoo; Zhu, Yimei; et al

    2015-11-19

    Material defects remain as the main bottleneck to the progress of topological insulators (TIs). In particular, efforts to achieve thin TI samples with dominant surface transport have always led to increased defects and degraded mobilities, thus making it difficult to probe the quantum regime of the topological surface states. Here, by utilizing a novel buffer layer scheme composed of an In2Se3/(Bi0.5In0.5)2Se3 heterostructure, we introduce a quantum generation of Bi2Se3 films with an order of magnitude enhanced mobilities than before. Furthermore, this scheme has led to the first observation of the quantum Hall effect in Bi2Se3.

  20. Position-Momentum Duality and Fractional Quantum Hall Effect in Chern Insulators

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

    Claassen, Martin; Lee, Ching-Hua; Thomale, Ronny; Qi, Xiao-Liang; Devereaux, Thomas P

    2015-06-11

    We develop a first quantization description of fractional Chern insulators that is the dual of the conventional fractional quantum Hall (FQH) problem, with the roles of position and momentum interchanged. In this picture, FQH states are described by anisotropic FQH liquids forming in momentum-space Landau levels in a fluctuating magnetic field. The fundamental quantum geometry of the problem emerges from the interplay of single-body and interaction metrics, both of which act as momentum-space duals of the geometrical picture of the anisotropic FQH effect. We then present a novel broad class of ideal Chern insulator lattice models that act as dualsmore » of the isotropic FQH effect. The interacting problem is well-captured by Haldane pseudopotentials and affords a detailed microscopic understanding of the interplay of interactions and non-trivial quantum geometry.« less

  1. D0 Silicon Upgrade: D-Zero Assembly Hall ODH Analysis

    SciTech Connect (OSTI)

    Rucinski, Russ; /Fermilab

    1997-03-12

    The ODH analysis presented here covers the high bay and assembly hall docking area of the for the D-Zero detector. It includes the STand Alone helium Refrigerator (STAR) in the building. It also includes the D-Zero detector and it's associated cryogenic and gas systems. An ODH analysis is presented which shows that the D-Zero assembly building high bay including the detector docking area is ODH class O. Probabilities, leak rates, and fatality factors are generated for all items that are sources of inert gas. The scope of analysis included the calorimeter and gas components on the detector, the helium refrigerator/liquifier components, and the future solenoid and visible light photon counter cryogenics that will be added to the D-Zero detector. The analysis demonstrates that the calorimeter and helium refrigerator systems pose no ODH hazard to personnel.

  2. X-ray K-edge analysis of drain lines in Wilhelm Hall, Ames Laboratory

    SciTech Connect (OSTI)

    Jensen, T.; Whitmore, C. |

    1999-01-05

    From August 12--27, 1998 X-ray K-edge measurements were made on drain lines in seven rooms in Wilhelm Hall, Ames Laboratory. The purpose of these measurements was to determine the extent of thorium (and other heavy metal) contamination inside these pipes. The K-edge method is a noninvasive inspection technique that can provide accurate quantification of heavy metal contamination interior to an object. Of the seven drain lines inspected, one was found to have no significant contamination, three showed significant thorium deposits, two showed mercury contamination, and one line was found to contain mercury, thorium and uranium. The K-edge measurements were found to be consistent with readings from hand-held survey meters, and provided much greater detail on the location and amount of heavy metal contamination.

  3. Extrinsic anomalous Hall effect in epitaxial Mn{sub 4}N films

    SciTech Connect (OSTI)

    Meng, M.; Wu, S. X. Ren, L. Z.; Zhou, W. Q.; Wang, Y. J.; Wang, G. L.; Li, S. W.

    2015-01-19

    Anomalous Hall effect (AHE) in ferrimagnetic Mn{sub 4}N epitaxial films grown by molecular-beam epitaxy is investigated. The longitudinal conductivity σ{sub xx} is within the superclean regime, indicating Mn{sub 4}N is a highly conducting material. We further demonstrate that the AHE signal in 40-nm-thick films is mainly due to the extrinsic contributions based on the analysis fitted by ρ{sub AH}=a′ρ{sub xx0}+bρ{sub xx}{sup 2} and σ{sub AH}∝σ{sub xx}. Our study not only provide a strategy for further theoretical work on antiperovskite manganese nitrides but also shed promising light on utilizing their extrinsic AHE to fabricate spintronic devices.

  4. Hall magnetohydrodynamics simulations of end-shorting induced rotation in field-reversed configurations

    SciTech Connect (OSTI)

    Macnab, A. I. D.; Milroy, R. D.; Kim, C. C.; Sovinec, C. R.

    2007-09-15

    End-shorting of the open field lines that surround a field-reversed configuration (FRC) is believed to contribute to its observed rotation. In this study, nonlinear extended magnetohydrodynamics (MHD) simulations were performed that detail the end-shorting process and the resulting spin-up of the FRC. The tangential component of the electric field E{sub T} is set to zero at the axial boundaries in an extended MHD model that includes the Hall and {nabla}P{sub e} terms. This shorting of the electric field leads to the generation of toroidal fields on the open field lines, which apply a torque leading to a rotation of the ions on the open field lines. The FRC then gains angular momentum through a viscous transfer from the open field line region. In addition, it is shown that spin-up is still induced when insulating boundaries are assumed.

  5. Diffusion Compton profondement virtuelle dans le Hall A au Jefferson Laboratory

    SciTech Connect (OSTI)

    Carlos Munoz Camacho

    2005-12-01

    Generalized Parton Distributions (GPDs), introduced in the late 90s, provide a universal description of hadrons in terms of the underlying degrees of freedom of Quantum Chromodynamics: quarks and gluons. GPDs appear in a wide variety of hard exclusive reactions and the advent of high luminosity accelerator facilities has made the study of GPDs accessible to experiment. Deeply Virtual Compton Scattering (DVCS) is the golden process involving GPDs. The first dedicated DVCS experiment ran in the Hall A of Jefferson Lab in Fall 2004. An electromagnetic calorimeter and a plastic scintillator detector were constructed for this experiment, together with specific electronics and acquisition system. The experiment preparation, data taking and analysis are described in this document. Results on the absolute cross section difference for opposite beam helicities provide the first measurement of a linear combination of GPDs as a function of the momentum transfer to the nucleon.

  6. Systems and methods for cylindrical hall thrusters with independently controllable ionization and acceleration stages

    DOE Patents [OSTI]

    Diamant, Kevin David; Raitses, Yevgeny; Fisch, Nathaniel Joseph

    2014-05-13

    Systems and methods may be provided for cylindrical Hall thrusters with independently controllable ionization and acceleration stages. The systems and methods may include a cylindrical channel having a center axial direction, a gas inlet for directing ionizable gas to an ionization section of the cylindrical channel, an ionization device that ionizes at least a portion of the ionizable gas within the ionization section to generate ionized gas, and an acceleration device distinct from the ionization device. The acceleration device may provide an axial electric field for an acceleration section of the cylindrical channel to accelerate the ionized gas through the acceleration section, where the axial electric field has an axial direction in relation to the center axial direction. The ionization section and the acceleration section of the cylindrical channel may be substantially non-overlapping.

  7. Non Invasive estimation of aluminum concentration in Hall-Heroult reduction cells

    SciTech Connect (OSTI)

    David Bell

    2004-03-01

    The present best practice for the preparation of primary aluminum is by electrolysis of alumina in the traditional Hall-Heroult reduction cell. The process conditions in the electrolyte of this cell required for the reduction to proceed are sufficiently harsh to have precluded the implementation of in situ sensing of the electrolyte composition, specifically the concentration of the ionized alumina. This report reveals the theoretical basis for a non-invasive method for estimation of the ionized alumina concentration which does not require the use of any sensor in direct contact with the cell electrolyte. The proposed method can in principle be applied with equal efficacy to the so-called drained cathode cell designs and to cells having any anode composition, because only knowledge of the electrolyte conduction behavior is required a priori. For an operating cell, the proposed method requires only readily available electrical measurements and the facilities to process the acquired signals. The proposed method rests on the ability to identify certain characteristics of the transients in the reduction cell terminal voltages caused by the quasiperiodic introduction of alumina. It will be shown that these voltage transients manifest measurable properties, in a statistical sense, that should permit estimation of the ionized alumina concentration with a delay of one alumina feed cycle. The next logical step following the present work, consistent with the Aluminum Technology Roadmap [1], is to experimentally verify the predictions made here; no doubt practical refinements to the proposed approach will evolve during the course of experimentation. Successful verification of the proposed estimation method will permit the design of reduction cell control algorithms based directly on the mass balance of alumina in the electrolyte. This report assumes that the reader understands certain basic concepts important to the operation of electrolytic cells, and the Hall-Heroult cell in particular. References [2,3] provide such concepts in a manner accessible to the technically educated reader; reference [6] is a more thorough treatment.

  8. Analysis of the spin Hall effect in CuIr alloys: Combined approach of density functional theory and Hartree-Fock approximation

    SciTech Connect (OSTI)

    Xu, Zhuo Gu, Bo; Mori, Michiyasu; Maekawa, Sadamichi; Ziman, Timothy

    2015-05-07

    We analyze the spin Hall effect in CuIr alloys in theory by the combined approach of the density functional theory (DFT) and Hartree-Fock (HF) approximation. The spin Hall angle (SHA) is obtained to be negative without the local correlation effects. After including the local correlation effects of the 5d orbitals of Ir impurities, the SHA becomes positive with realistic correlation parameters and consistent with experiment [Niimi et al., Phys. Rev. Lett. 106, 126601 (2011)]. Moreover, our analysis shows that the DFT?+?HF approach is a convenient and general method to study the influence of local correlation effects on the spin Hall effect.

  9. Spin Hall switching of the magnetization in Ta/TbFeCo structures with bulk perpendicular anisotropy

    SciTech Connect (OSTI)

    Zhao, Zhengyang; Jamali, Mahdi; Smith, Angeline K.; Wang, Jian-Ping

    2015-03-30

    Spin-orbit torques are studied in Ta/TbFeCo/MgO patterned structures, where the ferrimagnetic material TbFeCo provides a strong bulk perpendicular magnetic anisotropy (bulk-PMA) independent of the interfaces. The current-induced magnetization switching in TbFeCo is investigated in the presence of a perpendicular, longitudinal, or transverse field. An unexpected partial-switching phenomenon is observed in the presence of a transverse field unique to our bulk-PMA material. It is found that the anti-damping torque related with spin Hall effect is very strong, and a spin Hall angle is determined to be 0.12. The field-like torque related with Rashba effect is unobservable, suggesting that the interface play a significant role in Rashba-like torque.

  10. Quantum valley Hall states and topological transitions in Pt(Ni, Pd)-decorated silicene: A first-principles study

    SciTech Connect (OSTI)

    Zhao, Bao; Zhang, Jiayong; Wang, Yicheng; Yang, Zhongqin

    2014-12-28

    The electronic states and topological behaviors of Pt(Ni, Pd)-decorated silicene are investigated by using an ab-initio method. All the three kinds of the adatoms prefer hollow sites of the silicene, guaranteeing the Dirac cones unbroken. The Pt(Ni, Pd)-decorated silicene systems all present quantum valley Hall (QVH) states with the gap opened exactly at the Fermi level. The gaps of the QVH states can be increased substantially by applying a positive electric field. Very fascinating phase transitions from QVH to quantum spin Hall (QSH) and then to QVH again are achieved in the Pt/Ni-decorated silicene when a negative electric field is applied. The QSH state in the Pd case with a negative electric field is, however, quenched because of relatively larger Rashba spin-orbit coupling (SOC) than the intrinsic SOC in the system. Our findings may be useful for the applications of silicene-based devices in valleytronics and spintronics.

  11. Metallic transport and large anomalous Hall effect at room temperature in ferrimagnetic Mn{sub 4}N epitaxial thin film

    SciTech Connect (OSTI)

    Shen, Xi; Shigematsu, Kei; Chikamatsu, Akira Fukumura, Tomoteru; Hirose, Yasushi; Hasegawa, Tetsuya

    2014-08-18

    We report the electrical transport properties of ferrimagnetic Mn{sub 4}N (001) epitaxial thin films grown by pulsed laser deposition on MgO (001) substrates. The Mn{sub 4}N thin films were tetragonally distorted with a ratio of out-of-plane to in-plane lattice constants of 0.987 and showed perpendicular magnetic anisotropy with an effective magnetic anisotropy constant of 0.16?MJ/m{sup 3}, which is comparable with that of a recently reported molecular-beam-epitaxy-grown film. The thin films exhibited metallic transport with a room temperature resistivity of 125??? cm in addition to a large anomalous Hall effect with a Hall angle tangent of 0.023.

  12. First e-/Photon Commissioning Results for the GlueX Experiment/Hall D at CEBAF

    SciTech Connect (OSTI)

    McCaughan, Michael D.; Satogata, Todd J.; Roblin, Yves R.; Benesch, Jay F.

    2015-09-01

    Experimental Hall D, with flagship experiment GlueX, was constructed as part of the 12 GeV CEBAF upgrade. A new magnetically extracted electron beam line was installed to support this hall. Bremsstrahlung photons from retractable radiators, are delivered to the experiment through a series of collimators following a long drift to allow for beam convergence. Coherent Bremsstrahlung generated by interaction with a diamond radiator will achieve a nominal 40% linear polarization and photon energies between 8.5 and 9 GeV from 12.1 GeV electrons, which are then tagged or diverted to a medium power 60kW electron dump. The expected photon flux is 107-108 Hz. This paper discusses the experimental line design, commissioning experience gained since first beam in spring 2014, and the present results of beam commissioning by the experiment.

  13. The spin Hall angle and spin diffusion length of Pd measured by spin pumping and microwave photoresistance

    SciTech Connect (OSTI)

    Tao, X. D.; Feng, Z.; Miao, B. F.; Sun, L.; You, B.; Wu, D.; Du, J.; Zhang, W.; Ding, H. F., E-mail: hfding@nju.edu.cn [Department of Physics, National Laboratory of Solid State Microstructures, Nanjing University, 22 Hankou Road, Nanjing 210093 (China)

    2014-05-07

    We present the experimental study of the spin Hall angle (SHA) and spin diffusion length of Pd with the spin pumping and microwave photoresistance effects. The Py/Pd bilayer stripes are excited with an out-of-plane microwave magnetic field. The pure spin current is thus pumped and transforms into charge current via the inverse spin Hall effect (ISHE) in Pd layer, yielding an ISHE voltage. The ISHE voltage can be distinguished from the unwanted signal caused by the anisotropic magnetoresistance according to their different symmetries. Together with Pd thickness dependent measurements of in and out-of-plane precessing angles and effective spin mixing conductance, the SHA and spin-diffusion length of Pd are quantified as 0.0056??0.0007 and 7.3??0.7?nm, respectively.

  14. Planar Hall effect in Y{sub 3}Fe{sub 5}O{sub 12}/IrMn films

    SciTech Connect (OSTI)

    Zhang, X. Zou, L. K.

    2014-12-29

    The planar Hall effect of IrMn on an yttrium iron garnet (YIG = Y{sub 3}Fe{sub 5}O{sub 12}) was measured in the magnetic field rotating in the film plane. The magnetic field angular dependence of planar Hall resistance (PHR) was observed in YIG/IrMn bilayer at different temperatures, while the Gd{sub 3}Ga{sub 5}O{sub 12}/IrMn film shows constant PHR for different magnetic field angles at both 10 K and 300 K. This provides evidence that IrMn has interfacial spins which can be led by ferrimagnetic layer in YIG/IrMn structure. A hysteresis can be observed in PHR-magnetic field angle loop of YIG/IrMn film at 10 K, indicative of the irreversible switching of IrMn interfacial spins at low temperature.

  15. Analytical and computational study of the ideal full two-fluid plasma model and asymptotic approximations for Hall-magnetohydrodynamics

    SciTech Connect (OSTI)

    Srinivasan, B.; Shumlak, U.

    2011-09-15

    The 5-moment two-fluid plasma model uses Euler equations to describe the ion and electron fluids and Maxwell's equations to describe the electric and magnetic fields. Two-fluid physics becomes significant when the characteristic spatial scales are on the order of the ion skin depth and characteristic time scales are on the order of the ion cyclotron period. The full two-fluid plasma model has disparate characteristic speeds ranging from the ion and electron speeds of sound to the speed of light. Two asymptotic approximations are applied to the full two-fluid plasma to arrive at the Hall-MHD model, namely negligible electron inertia and infinite speed of light. The full two-fluid plasma model and the Hall-MHD model are studied for applications to an electromagnetic plasma shock, geospace environmental modeling (GEM challenge) magnetic reconnection, an axisymmetric Z-pinch, and an axisymmetric field reversed configuration (FRC).

  16. Building America Top Innovations Hall of Fame Profile … Integration of HVAC System Design with Simplified Duct Distribution

    Energy Savers [EERE]

    research team IBACOS worked with S&A Homes to design a compact HVAC layout with all ducts in conditioned space in several homes in Pittsburgh. Poor-quality HVAC design and installation can reduce the overall HVAC system energy efficiency up to 30%. HVAC quality installation practices are essential to realizing the promise of high-performance homes. BUILDING AMERICA TOP INNOVATIONS HALL OF FAME PROFILE INNOVATIONS CATEGORY: 1. Advanced Technologies and Practices 1.1 Building Science Solutions

  17. Isotropic Hall effect and ''freeze-in'' of carriers in the InGaAs self-assembled quantum wires

    SciTech Connect (OSTI)

    Kunets, Vas. P.; Prosandeev, S.; Mazur, Yu. I.; Ware, M. E.; Teodoro, M. D.; Dorogan, V. G.; Lytvyn, P. M.; Salamo, G. J.

    2011-10-15

    Using molecular beam epitaxy, we prepared an anisotropic media consisting of InGaAs quantum wires epitaxially grown on GaAs (311)A. Anisotropy is observed in the lateral conductivity and photoluminescence polarization. However, an isotropic Hall effect is observed in the same samples. We show that the Hall effect in this anisotropic heterostructure remains isotropic regardless of the change of the doping in GaAs barriers and regardless of the InGaAs coverage, whereas the conductivity anisotropy experiences a strong change under these actions. In addition, we observed an anomalous increase in carrier density, ''freeze-in,'' at low temperatures. In order to explain this, we generalized the theory of Look [D. C. Look, Phys. Rev B 42, 3578 (1990)] by considering the low field magneto-transport in anisotropic media. This theory confirms that the Hall constant remains isotropic in anisotropic semiconductor heterostructures, agreeing with our experiment and explains the anomalous behavior of carriers as a result of multi-band conductivity.

  18. Low frequency azimuthal stability of the ionization region of the Hall thruster discharge. I. Local analysis

    SciTech Connect (OSTI)

    Escobar, D.; Ahedo, E.

    2014-04-15

    Results based on a local linear stability analysis of the Hall thruster discharge are presented. A one-dimensional azimuthal framework is used including three species: neutrals, singly charged ions, and electrons. A simplified linear model is developed with the aim of deriving analytical expressions to characterize the stability of the ionization region. The results from the local analysis presented here indicate the existence of an instability that gives rise to an azimuthal oscillation in the +E??B direction with a long wavelength. According to the model, the instability seems to appear only in regions where the ionization and the electric field make it possible to have positive gradients of plasma density and ion velocity at the same time. A more complex model is also solved numerically to validate the analytical results. Additionally, parametric variations are carried out with respect to the main parameters of the model to identify the trends of the instability. As the temperature increases and the neutral-to-plasma density ratio decreases, the growth rate of the instability decreases down to a limit where azimuthal perturbations are no longer unstable.

  19. Large anomalous Hall effect in ferromagnetic insulator-topological insulator heterostructures

    SciTech Connect (OSTI)

    Alegria, L. D.; Petta, J. R.; Ji, H.; Cava, R. J.; Yao, N.; Clarke, J. J.

    2014-08-04

    We demonstrate the van der Waals epitaxy of the topological insulator compound Bi{sub 2}Te{sub 3} on the ferromagnetic insulator Cr{sub 2}Ge{sub 2}Te{sub 6}. The layers are oriented with (001)Bi{sub 2}Te{sub 3}||(001)Cr{sub 2}Ge{sub 2}Te{sub 6} and (110)Bi{sub 2}Te{sub 3}||(100)Cr{sub 2}Ge{sub 2}Te{sub 6}. Cross-sectional transmission electron microscopy indicates the formation of a sharp interface. At low temperatures, bilayers consisting of Bi{sub 2}Te{sub 3} on Cr{sub 2}Ge{sub 2}Te{sub 6} exhibit a large anomalous Hall effect (AHE). Tilted field studies of the AHE indicate that the easy axis lies along the c-axis of the heterostructure, consistent with magnetization measurements in bulk Cr{sub 2}Ge{sub 2}Te{sub 6}. The 61 K Curie temperature of Cr{sub 2}Ge{sub 2}Te{sub 6} and the use of near-stoichiometric materials may lead to the development of spintronic devices based on the AHE.

  20. Beam Position Reconstruction for the g2p Experiment in Hall A at Jefferson Lab

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

    Zhu, Pengjia; Allada, Kalyan; Allison, Trent; Badman, Toby; Camsonne, Alexandre; Chen, Jian-ping; Cummings, Melissa; Gu, Chao; Huang, Min; Liu, Jie; et al

    2015-11-03

    Beam-line equipment was upgraded for experiment E08-027 (g2p) in Hall A at Jefferson Lab. Two beam position monitors (BPMs) were necessary to measure the beam position and angle at the target. A new BPM receiver was designed and built to handle the low beam currents (50-100 nA) used for this experiment. Two new super-harps were installed for calibrating the BPMs. In addition to the existing fast raster system, a slow raster system was installed. We found that before and during the experiment, these new devices were tested and debugged, and their performance was also evaluated. In order to achieve themore » required accuracy (1-2 mm in position and 1-2 mrad in angle at the target location), the data of the BPMs and harps were carefully analyzed, as well as reconstructing the beam position and angle event by event at the target location. Finally, the calculated beam position will be used in the data analysis to accurately determine the kinematics for each event.« less

  1. Electroproduction de pions neutres dans le Hall A au Jefferson Laboratory

    SciTech Connect (OSTI)

    Eric Fuchey

    2010-06-01

    The past decade has seen a strong evolution of the study of the hadron structure through exclusive processes, allowing to access to a more complete description of this structure. Exclusive processes include DVCS (Deeply Virtual Compton Scattering) as well as hard exclusive meson production. This document is particularly focussed on the latter, and more particularly on exclusive neutral pion production. In this thesis is described the analysis of triple coincidence events H(e, e'{gamma}{gamma})X, which were a consequent by-product of the DVCS experiment which occured during Fall 2004 at Jefferson Lab Hall A, to extract the ep {yields} ep{pi}{sup 0} cross section. This cross section has been measured at two values of four-momentum transfer Q{sup 2} = 1.9 GeV{sup 2} and Q{sup 2} = 2.3 GeV{sup 2}. The statistical precision for these measurements is achieved at better than 5 %. The kinematic range allows to study the evolution of the extracted cross section as a function of Q{sup 2} and W. Results are be confronted with Regge inspired calculations and Generalized (GPD) predictions. An intepretation of our data within the framework of semi-inclusive deep inelastic scattering is also discussed.

  2. Influence of Mn concentration on magnetic topological insulator MnxBi2−xTe3 thin-film Hall-effect sensor

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

    Ni, Y.; Zhang, Z.; Nlebedim, I. C.; Hadimani, R. L.; Jiles, D. C.

    2015-06-11

    Hall-effect (HE) sensors based on high-quality Mn-doped Bi2Te3 topological insulator (TI) thin films have been systematically studied in this paper. Improvement of Hall sensitivity is found after doping the magnetic element Mn into Bi2Te3. The sensors with low Mn concentrations, MnxBi2-xTe3, x = 0.01 and 0.08 show the linear behavior of Hall resistance with sensitivity about 5 Ω/T. And their Hall sensitivity shows weak dependence on temperature. For sensors with high Mn concentration (x = 0.23), the Hall resistance with respect to magnetic field shows a hysteretic behavior. Moreover, its sensitivity shows almost eight times as high as that ofmore »the HE sensors with low Mn concentration. The highest sensitivity can reach 43 Ω/T at very low magnetic field. This increase of Hall sensitivity is caused by the occurrence of anomalous HE (AHE) after ferromagnetic phase transition. Our work indicates that the magnetic-element-doped TIs with AHE are good candidates for HE sensors.« less

  3. Influence of Mn concentration on magnetic topological insulator MnxBi2−xTe3 thin-film Hall-effect sensor

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

    Ni, Y.; Zhang, Z.; Nlebedim, I. C.; Hadimani, R. L.; Jiles, D. C.

    2015-06-11

    Hall-effect (HE) sensors based on high-quality Mn-doped Bi2Te3 topological insulator (TI) thin films have been systematically studied in this paper. Improvement of Hall sensitivity is found after doping the magnetic element Mn into Bi2Te3. The sensors with low Mn concentrations, MnxBi2-xTe3, x = 0.01 and 0.08 show the linear behavior of Hall resistance with sensitivity about 5 Ω/T. And their Hall sensitivity shows weak dependence on temperature. For sensors with high Mn concentration (x = 0.23), the Hall resistance with respect to magnetic field shows a hysteretic behavior. Moreover, its sensitivity shows almost eight times as high as that ofmore » the HE sensors with low Mn concentration. The highest sensitivity can reach 43 Ω/T at very low magnetic field. This increase of Hall sensitivity is caused by the occurrence of anomalous HE (AHE) after ferromagnetic phase transition. Our work indicates that the magnetic-element-doped TIs with AHE are good candidates for HE sensors.« less

  4. Advancing strategic environmental assessment in the offshore oil and gas sector: Lessons from Norway, Canada, and the United Kingdom

    SciTech Connect (OSTI)

    Fidler, Courtney; Noble, Bram

    2012-04-15

    Abstract: Strategic environmental assessment (SEA) for offshore oil and gas planning and development is utilized in select international jurisdictions, but the sector has received limited attention in the SEA literature. While the potential benefits of and rationale for SEA are well argued, there have been few empirical studies of SEA processes for the offshore sector. Hence, little is known about the efficacy of SEA offshore, in particular its influence on planning and development decisions. This paper examines SEA practice and influence in three international offshore systems: Norway, Atlantic Canada and the United Kingdom, with the intent to identify the challenges, lessons and opportunities for advancing SEA in offshore planning and impact assessment. Results demonstrate that SEA can help inform and improve the efficacy and efficiency of project-based assessment in the offshore sector, however weak coordination between higher and lower tiers limit SEA's ability to influence planning and development decisions in a broad regional environmental and socioeconomic context. - Highlights: Black-Right-Pointing-Pointer SEA can inform and improve the efficacy and efficiency of project EA offshore Black-Right-Pointing-Pointer Scope and deliverables of SEA offshore often differ from stakeholder expectations Black-Right-Pointing-Pointer Considerable variability in influence of SEA output beyond licensing decisions Black-Right-Pointing-Pointer Sector-based SEA offshore is often too restrictive to generate expected benefits.

  5. Grain-boundary strengthening in nanocrystalline chromium and the Hall- Petch coefficient of body-centered cubic metals

    SciTech Connect (OSTI)

    Wu, Dong; Junyan, Zhang; Huang, J C; Bei, Hongbin; Nieh, Tai-Gang

    2013-01-01

    Nanocrystalline Cr (nc-Cr) was synthesized by electrodeposition. Samples with various grain sizes (19 57 nm) were prepared by annealing the as-deposited sample. Microstructures were examined using X-ray and electron microscopy, and the mechanical prop- erties were evaluated using nanoindentation. The strength of nc-Cr samples apparently obeyed the classical Hall Petch relationship. It was found that hardening potency caused by grain refinement was generally higher in body-centered cubic metals than that in face-centered cubic and hexagonal close-packed metals. A possible explanation was offered.

  6. Radiation and ionization energy loss simulation for the GDH sum rule experiment in Hall-A at Jefferson Lab

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

    Yan, Xin -Hu; Ye, Yun -Xiu; Chen, Jian -Ping; Lu, Hai -Jiang; Zhu, Peng -Jia; Jiang, Feng -Jian

    2015-07-17

    The radiation and ionization energy loss are presented for single arm Monte Carlo simulation for the GDH sum rule experiment in Hall-A at Jefferson Lab. Radiation and ionization energy loss are discussed formore » $$^{12}C$$ elastic scattering simulation. The relative momentum ratio $$\\frac{\\Delta p}{p}$$ and $$^{12}C$$ elastic cross section are compared without and with radiation energy loss and a reasonable shape is obtained by the simulation. The total energy loss distribution is obtained, showing a Landau shape for $$^{12}C$$ elastic scattering. This simulation work will give good support for radiation correction analysis of the GDH sum rule experiment.« less

  7. Temperature dependence of the photo-induced inverse spin Hall effect in Au/InP hybrid structures

    SciTech Connect (OSTI)

    Khamari, Shailesh K. Porwal, S.; Dixit, V. K.; Sharma, T. K.

    2014-01-27

    Photo-induced Inverse Spin Hall Effect (ISHE) measurements on Au/InP hybrid structures are performed over a temperature range of 45 to 300?K. Dependence of the spin current density on the degree of circular polarization and also on the angle of incidence of laser beam confirms the ISHE origin of measured signal. The magnitude of ISHE increases with sample cooling. A numerical model based on the spin relaxation of non-equilibrium spin-polarized electrons is proposed for predicting the temperature dependence of ISHE. Our results indicate that the proposed device can be used as a spin photodetector over a wide temperature range.

  8. MO-PIS-Exhibit Hall-01: Tools for TG-142 Linac Imaging QA I

    SciTech Connect (OSTI)

    Clements, M; Wiesmeyer, M

    2014-06-15

    Partners in Solutions is an exciting new program in which AAPM partners with our vendors to present practical hands-on information about the equipment and software systems that we use in our clinics. The therapy topic this year is solutions for TG-142 recommendations for linear accelerator imaging QA. Note that the sessions are being held in a special purpose room built on the Exhibit Hall Floor, to encourage further interaction with the vendors. Automated Imaging QA for TG-142 with RIT Presentation Time: 2:45 3:15 PM This presentation will discuss software tools for automated imaging QA and phantom analysis for TG-142. All modalities used in radiation oncology will be discussed, including CBCT, planar kV imaging, planar MV imaging, and imaging and treatment coordinate coincidence. Vendor supplied phantoms as well as a variety of third-party phantoms will be shown, along with appropriate analyses, proper phantom setup procedures and scanning settings, and a discussion of image quality metrics. Tools for process automation will be discussed which include: RIT Cognition (machine learning for phantom image identification), RIT Cerberus (automated file system monitoring and searching), and RunQueueC (batch processing of multiple images). In addition to phantom analysis, tools for statistical tracking, trending, and reporting will be discussed. This discussion will include an introduction to statistical process control, a valuable tool in analyzing data and determining appropriate tolerances. An Introduction to TG-142 Imaging QA Using Standard Imaging Products Presentation Time: 3:15 3:45 PM Medical Physicists want to understand the logic behind TG-142 Imaging QA. What is often missing is a firm understanding of the connections between the EPID and OBI phantom imaging, the software algorithms that calculate the QA metrics, the establishment of baselines, and the analysis and interpretation of the results. The goal of our brief presentation will be to establish and solidify these connections. Our talk will be motivated by the Standard Imaging, Inc. phantom and software solutions. We will present and explain each of the image quality metrics in TG-142 in terms of the theory, mathematics, and algorithms used to implement them in the Standard Imaging PIPSpro software. In the process, we will identify the regions of phantom images that are analyzed by each algorithm. We then will discuss the process of the creation of baselines and typical ranges of acceptable values for each imaging quality metric.

  9. Spectral shape deformation in inverse spin Hall voltage in Y{sub 3}Fe{sub 5}O{sub 12}|Pt bilayers at high microwave power levels

    SciTech Connect (OSTI)

    Lustikova, J. Shiomi, Y.; Handa, Y.; Saitoh, E.

    2015-02-21

    We report on the deformation of microwave absorption spectra and of the inverse spin Hall voltage signals in thin film bilayers of yttrium iron garnet (YIG) and platinum at high microwave power levels in a 9.45-GHz TE{sub 011} cavity. As the microwave power increases from 0.15 to 200 mW, the resonance field shifts to higher values, and the initially Lorentzian spectra of the microwave absorption intensity as well as the inverse spin Hall voltage signals become asymmetric. The contributions from opening of the magnetization precession cone and heating of YIG cannot well reproduce the data. Control measurements of inverse spin Hall voltages on thin-film YIG|Pt systems with a range of line widths underscore the role of spin-wave excitations in spectral deformation.

  10. Temperature-driven band inversion in Pb0.77Sn0.23Se: Optical and Hall effect studies

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

    Anand, Naween; Buvaev, Sanal; Hebard, A. F.; Tanner, D. B.; Chen, Zhiguo; Li, Zhiqiang; Choudhary, Kamal; Sinnott, S. B.; Gu, Genda; Martin, C.

    2014-12-23

    Optical and Hall-effect measurements have been performed on single crystals of Pb₀.₇₇Sn₀.₂₃Se, a IV-VI mixed chalcogenide. The temperature dependent (10–300 K) reflectance was measured over 40–7000 cm⁻¹ (5–870 meV) with an extension to 15,500 cm⁻¹ (1.92 eV) at room temperature. The reflectance was fit to the Drude-Lorentz model using a single Drude component and several Lorentz oscillators. The optical properties at the measured temperatures were estimated via Kramers-Kronig analysis as well as by the Drude-Lorentz fit. The carriers were p-type with the carrier density determined by Hall measurements. A signature of valence intraband transition is found in the low-energy opticalmore » spectra. It is found that the valence-conduction band transition energy as well as the free carrier effective mass reach minimum values at 100 K, suggesting temperature-driven band inversion in the material. Thus, density function theory calculation for the electronic band structure also make similar predictions.« less

  11. TU-PIS-Exhibit Hall-01: CT Dose Optimization Technologies II

    SciTech Connect (OSTI)

    Driesser, I; Angel, E

    2014-06-15

    Partners in Solutions is an exciting new program in which AAPM partners with our vendors to present practical “hands-on” information about the equipment and software systems that we use in our clinics. The imaging topic this year is CT scanner dose optimization capabilities. Note that the sessions are being held in a special purpose room built on the Exhibit Hall Floor, to encourage further interaction with the vendors. Siemens‘ Commitment to the Right Dose in Computed Tomography Presentation Time: 11:15 - 11:45 AM Providing sustainable clinical results at highest patient safety: This is the challenge in medical imaging. Especially for Computed Tomography this means applying not simply the lowest, but the right dose for sound diagnostic imaging. Consequently, Siemens is committed to deliver the right dose in CT. In order to reduce radiation to the right dose, the first step is to provide the right dose technology. Through decades of research and development in CT imaging, Siemens CT has constantly introduced new ideas leading to a comprehensive portfolio of unique CARE technologies to deliver the right dose. For example automated kV adjustment based on patient size and the clinical question with CARE kV and three generations of iterative reconstruction. Based on the right dose technology, the next step is to actually scan at the right dose. For this, it is key to know the right dose targets for every examination. Siemens continuously involves CT experts to push developments further and outline how users can best adapt their procedures to the right dose. For users to know whether they met the right dose targets, it is therefore important to understand and monitor the actual absolute dose values. All scanners are delivered with defined default protocols which automatically use the available right dose technologies. Finally, to deliver the right dose not just in singular cases, but ideally to patients everywhere, organizations need then to manage dose across their institutions. Here Siemens offers the right dose management tools for administrations to analyze and document dose, to train their clinical staff and to continuously optimize the application of the right dose in clinical routine. Siemens CT is not only adhering to the ALARA principle, but is inspired by it. With CARE Right Siemens show their commitment to the right dose in CT. Toshiba Aquilion CT Dose Management Tools Presentation Time: 11:45 - 12:15 PM A practical review of Toshiba’s CT dose management technologies from the physicist’s perspective. This presentation will include an overview of Toshiba’s CT dose reduction technologies and dose safeguards. Content will include answers to frequently asked questions relating to dose management, dose tracking, CTDI measurement, ACR accreditation, ACR QC, and protocol review on Toshiba CT systems. Specific topics will include the following: Toshiba’s mechanism of tube current modulation; Exposure record format and interpretation of the values; Dose reporting and dose safeguard tools; Use of AIDR 3D iterative reconstruction; The configuration of task specific image quality target and its integration with AIDR 3D; Tips for scanning the ACR phantom with wide beam geometry; Measuring CTDI for wide beam geometry; Discussion of daily QC procedures and specifications; Tips for annual QC evaluation; Protocol management tools.

  12. MO-PIS-Exhibit Hall-01: Imaging: CT Dose Optimization Technologies I

    SciTech Connect (OSTI)

    Denison, K; Smith, S

    2014-06-15

    Partners in Solutions is an exciting new program in which AAPM partners with our vendors to present practical hands-on information about the equipment and software systems that we use in our clinics. The imaging topic this year is CT scanner dose optimization capabilities. Note that the sessions are being held in a special purpose room built on the Exhibit Hall Floor, to encourage further interaction with the vendors. Dose Optimization Capabilities of GE Computed Tomography Scanners Presentation Time: 11:15 11:45 AM GE Healthcare is dedicated to the delivery of high quality clinical images through the development of technologies, which optimize the application of ionizing radiation. In computed tomography, dose management solutions fall into four categories: employs projection data and statistical modeling to decrease noise in the reconstructed image - creating an opportunity for mA reduction in the acquisition of diagnostic images. Veo represents true Model Based Iterative Reconstruction (MBiR). Using high-level algorithms in tandem with advanced computing power, Veo enables lower pixel noise standard deviation and improved spatial resolution within a single image. Advanced Adaptive Image Filters allow for maintenance of spatial resolution while reducing image noise. Examples of adaptive image space filters include Neuro 3-D filters and Cardiac Noise Reduction Filters. AutomA adjusts mA along the z-axis and is the CT equivalent of auto exposure control in conventional x-ray systems. Dynamic Z-axis Tracking offers an additional opportunity for dose reduction in helical acquisitions while SmartTrack Z-axis Tracking serves to ensure beam, collimator and detector alignment during tube rotation. SmartmA provides angular mA modulation. ECG Helical Modulation reduces mA during the systolic phase of the heart cycle. SmartBeam optimization uses bowtie beam-shaping hardware and software to filter off-axis x-rays - minimizing dose and reducing x-ray scatter. The DICOM Radiation Dose Structured Report (RDSR) generates a dose report at the conclusion of every examination. Dose Check preemptively notifies CT operators when scan parameters exceed user-defined dose thresholds. DoseWatch is an information technology application providing vendor-agnostic dose tracking and analysis for CT (and all other diagnostic x-ray modalities) SnapShot Pulse improves coronary CTA dose management. VolumeShuttle uses two acquisitions to increase coverage, decrease dose, and conserve on contrast administration. Color-Coding for Kids applies the Broselow-Luten Pediatric System to facilitate pediatric emergency care and reduce medical errors. FeatherLight achieves dose optimization through pediatric procedure-based protocols. Adventure Series scanners provide a child-friendly imaging environment promoting patient cooperation with resultant reduction in retakes and patient motion. Philips CT Dose Optimization Tools and Advanced Reconstruction Presentation Time: 11:45 12:15 PM The first part of the talk will cover Dose Reduction and Dose Optimization Technologies present in Philips CT Scanners. The main Technologies to be presented include: DoseRight and tube current modulation (DoseRight, Z-DOM, 3D-DOM, DoseRight Cardiac) Special acquisition modes Beam filtration and beam shapers Eclipse collimator and ClearRay collimator NanoPanel detector DoseRight will cover automatic tube current selection that automatically adjusts the dose for the individual patient. The presentation will explore the modulation techniques currently employed in Philips CT scanners and will include the algorithmic concepts as well as illustrative examples. Modulation and current selection technologies to be covered include the Automatic Current Selection component of DoseRight, ZDOM longitudinal dose modulation, 3D-DOM (combination of longitudinal and rotational dose modulation), Cardiac Dose right (an ECG based dose modulation scheme), and the DoseRight Index (DRI) IQ index. The special acquisition modes covers acquisition techniques such as prospective gating that

  13. Spin- and valley-dependent commensurability oscillations and electric-field-induced quantum Hall plateaux in periodically modulated silicene

    SciTech Connect (OSTI)

    Shakouri, Kh.; Peeters, F. M. [Departement Fysica, Universiteit Antwerpen, Groenenborgerlaan 171, B-2020 Antwerpen (Belgium); Vasilopoulos, P.; Vargiamidis, V. [Department of Physics, Concordia University, 7141 Sherbrooke Ouest Montral, Qubec H4B 1R6 (Canada); Hai, G.-Q. [Instituto de Fisica de So Carlos, Universidade de So Paulo, So Carlos, SP 13560-970 (Brazil)

    2014-05-26

    We study the commensurability oscillations in silicene subject to a perpendicular electric field E{sub z}, a weak magnetic field B, and a weak periodic potential V=V{sub 0}cos(Cy),C=2?/a{sub 0} with a{sub 0} its period. The field E{sub z} and/or the modulation lift the spin degeneracy of the Landau levels and lead to spin and valley resolved Weiss oscillations. The spin resolution is maximal when the field E{sub z} is replaced by a periodic one E{sub z}=E{sub 0}cos(Dy),D=2?/b{sub 0}, while the valley one is maximal for b{sub 0}?=?a{sub 0}. In certain ranges of B values, the current is fully spin or valley polarized. Additional quantum Hall conductivity plateaux arise due to spin and valley intra-Landau-level transitions.

  14. Attempt to measure magnetic hyperfine fields in metallic thin wires under spin Hall conditions using synchrotron-radiation Mssbauer spectroscopy

    SciTech Connect (OSTI)

    Mibu, K. Tanaka, M. A.; Mitsui, T.; Masuda, R.; Kitao, S.; Kobayashi, Y.; Seto, M.; Yoda, Y.

    2015-05-07

    Measurement of the magnetic hyperfine fields in metallic thin wires under spin Hall conditions was attempted using the emerging technique, synchrotron-radiation Mssbauer spectroscopy. A Mssbauer probe layer of {sup 57}Fe (0.2?nm), {sup 57}Fe (0.6?nm), or {sup 119}Sn (0.6?nm) was embedded as an electron spin detector near the surfaces of V, Au, Pt, and {sup 56}Fe wires. The magnitudes of the magnetic hyperfine fields at the {sup 57}Fe and {sup 119}Sn nuclear sites that could be enhanced by non-equilibrium conduction-electron spin polarization were measured both without and with the application of an electric current along the wire. Changes in the Mssbauer spectra were not clearly observed, indicating that the magnetic hyperfine field induced by non-equilibrium spin polarization is smaller than the detection limit at least for the measured systems and conditions.

  15. Large size GEM for Super Bigbite Spectrometer (SBS) polarimeter for Hall A 12GeV program at JLab

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

    Gnanvo, Kondo; Liyanage, Nilanga; Nelyubin, Vladimir; Saenboonruang, Kiadtisak; Sacher, Seth; Wojtsekhowski, Bogdan

    2015-05-01

    We report on the R&D effort in the design and construction of a large size GEM chamber for the Proton Polarimeter of the Super Bigbite Spectrometer (SBS) in Hall A at Thomas Jefferson National Laboratory (JLab). The SBS Polarimeter trackers consist of two sets of four large chambers of size 200 cm x 60 cm2. Each chamber is a vertical stack of four GEM modules with an active area of 60 cm x 50 cm. We have built and tested several GEM modules and we describe in this paper the design and construction of the final GEM as well asmore » the preliminary results on performances from tests carried out in our detector lab and with test beams at (Fermilab).« less

  16. Intrinsic synchronization of an array of spin-torque oscillators driven by the spin-Hall effect

    SciTech Connect (OSTI)

    Siracusano, G. Puliafito, V.; Giordano, A.; Azzerboni, B.; Finocchio, G.; Tomasello, R.; La Corte, A.; Carpentieri, M.

    2015-05-07

    This paper micromagnetically studies the magnetization dynamics driven by the spin-Hall effect in a Platinum/Permalloy bi-layer. For a certain field and current range, the excitation of a uniform mode, characterized by a power with a spatial distribution in the whole ferromagnetic cross section, is observed. We suggest to use the ferromagnet of the bi-layer as basis for the realization of an array of spin-torque oscillators (STOs): the Permalloy ferromagnet will act as shared free layer, whereas the spacers and the polarizers are built on top of it. Following this strategy, the frequency of the uniform mode will be the same for the whole device, creating an intrinsic synchronization. The synchronization of an array of parallely connected STOs will allow to increase the output power, as necessary for technological applications.

  17. Large size GEM for Super Bigbite Spectrometer (SBS) polarimeter for Hall A 12GeV program at JLab

    SciTech Connect (OSTI)

    Gnanvo, Kondo; Liyanage, Nilanga; Nelyubin, Vladimir; Saenboonruang, Kiadtisak; Sacher, Seth; Wojtsekhowski, Bogdan

    2015-05-01

    We report on the R&D effort in the design and construction of a large size GEM chamber for the Proton Polarimeter of the Super Bigbite Spectrometer (SBS) in Hall A at Thomas Jefferson National Laboratory (JLab). The SBS Polarimeter trackers consist of two sets of four large chambers of size 200 cm x 60 cm2. Each chamber is a vertical stack of four GEM modules with an active area of 60 cm x 50 cm. We have built and tested several GEM modules and we describe in this paper the design and construction of the final GEM as well as the preliminary results on performances from tests carried out in our detector lab and with test beams at (Fermilab).

  18. Cavity Design, Fabrication and Commission Performance of a 750MHz, 4-rod Separator for CEBAF 4-Hall Beam Delivery System

    SciTech Connect (OSTI)

    Wang, Haipeng; Cheng, Guangfeng; Turlington, Larry T.; Wissmann, Mark J.

    2015-09-01

    A short version of the original CEBAF normal conducting 4-rod separator cavity has been developed into a 750MHz one * since the concept of simultaneous 4-hall operation for CEBAF is introduced **. This work has been advanced further based on the EM design optimization, bench measurement and by conducting RF-thermal coupled simulation using CST and ANSYS to confirm the cavity tuning and thermal performance. The cavity fabrication used matured technology like copper plating and machining. The cavity flanges, couplers, tuners and cooling channels adopted consistent/compatible hardware with the existing 500MHz cavities. The electromagnetic and thermal design simulations have greatly reduced the prototyping and bench tuning time of the first prototype. Four production cavities have reached a typical 1.94MV kick voltage or 3.0kW wall loss on each cavity after a minor multipactoring or no processing, 7.5% overhead power than the design specification.

  19. Spin Hall magnetoresistance at Pt/CoFe{sub 2}O{sub 4} interfaces and texture effects

    SciTech Connect (OSTI)

    Isasa, Miren; Bedoya-Pinto, Amilcar; Vlez, Sal; Golmar, Federico; Snchez, Florencio; Fontcuberta, Josep; Hueso, Luis E.; Casanova, Flix

    2014-10-06

    We report magnetoresistance measurements on thin Pt bars grown on epitaxial (001) and (111) CoFe{sub 2}O{sub 4} (CFO) ferrimagnetic insulating films. The results can be described in terms of the recently discovered spin Hall magnetoresistance (SMR). The magnitude of the SMR depends on the interface preparation conditions, being optimal when the Pt/CFO samples are prepared in situ, in a single process. The spin-mixing interface conductance, the key parameter governing SMR and other relevant spin-dependent phenomena, such as spin pumping or spin Seebeck effect, is found to be different depending on the crystallographic orientation of CFO, highlighting the role of the composition and density of magnetic ions at the interface on spin mixing.

  20. Confirmatory Survey for the Partial Site Release at the ABB Inc. CE Winsor Site, Windsor, CT

    SciTech Connect (OSTI)

    W.C. Adams

    2008-06-27

    The objectives of the confirmatory surveys were to confirm that remedial actions had been effective in meeting established release criteria and that documentation accurately and adequately describes the final radiological conditions of the PSR Impacted Areas.

  1. Report on the SNL/AWE/NSF international workshop on joint mechanics, Dartington, United Kingdom, 2729 April 2009.

    SciTech Connect (OSTI)

    Ewins, David J.; Bergman, Lawrence A.; Segalman, Daniel Joseph

    2010-08-01

    The SNL/AWE joint mechanics workshop, held in Dartington Hall, Totnes, Devon, UK 26-29 April 2009 was a follow up to another international joints workshop held in Arlington, Virginia, in October 2006. The preceding workshop focused on identifying what length scales and interactions would be necessary to provide a scientific basis for analyzing and understanding joint mechanics from the atomistic scale on upward. In contrast, the workshop discussed in this report, focused much more on identification and development of methods at longer length scales that can have a nearer term impact on engineering analysis, design, and prediction of the dynamics of jointed structures. Also, the 2009 meeting employed less technical presentation and more break out sessions for developing focused strategies than was the case with the early workshop. Several 'challenges' were identified and assignments were made to teams to develop approaches to address those challenges.

  2. Dependence of inverse-spin Hall effect and spin-rectified voltage on tantalum thickness in Ta/CoFeB bilayer structure

    SciTech Connect (OSTI)

    Kim, Sang-Il; Seo, Min-Su; Park, Seung-Young; Kim, Dong-Jun; Park, Byong-Guk

    2015-01-19

    Ta-layer thickness (t{sub Ta}) dependence of the measured DC voltage V from the inverse-spin Hall effect (ISHE) in Ta/CoFeB bilayer structure is experimentally investigated using the ferromagnetic resonance in the TE{sub 011} resonant cavity. The ISHE signals excluding the spin-rectified effect (SRE) were separated from the fitted curve of V against t{sub Ta}. For t{sub Ta} ≈ λ{sub Ta} (Ta-spin diffusion length = 2.7 nm), the deviation in ISHE voltage V{sub ISH} between the experimental and theoretical values is significantly increased because of the large SRE contribution, which also results in a large deviation in the spin Hall angle θ{sub SH} (from 10% to 40%). However, when t{sub Ta} ≫ λ{sub Ta}, the V{sub ISH} values are consistent with theoretical values because the SRE terms become negligible, which subsequently improves the accuracy of the obtained θ{sub SH} within 4% deviation. The results will provide an outline for an accurate estimation of the θ{sub SH} for materials with small λ value, which would be useful for utilizing the spin Hall effect in a 3-terminal spintronic devices in which magnetization can be controlled by in-plane current.

  3. Shockley-Read-Hall recombination in pre-filled and photo-filled intermediate band solar cells

    SciTech Connect (OSTI)

    Mayani, Maryam Gholami; Reenaas, Turid Worren

    2014-08-18

    In this work, we study how Shockley-Read-Hall (SRH) recombination via energy levels in the bandgap, caused by defects or impurities, affects the performance of both photo-filled and pre-filled intermediate band solar cells (IBSCs). For a pre-filled cell, the IB is half-filled in equilibrium, while it is empty for the photo-filled cell in equilibrium. The energy level, density, and capture cross-sections of the defects/impurities are varied systematically. We find that the photo-filled cells are, in general, less efficient than pre-filled cells, except when the defect level is between the conduction band and the IB. In that case, for a range of light intensities, the photo-filled cell performs better than the pre-filled. When the defect level is at the same energy as the IB, the efficiency is above 82% of the defect-free case, when less than 50% of the states at the IB lead to SRH recombination. This shows that even if SRH recombination via the IB takes place, high efficiencies can be achieved. We also show that band gap optimization can be used to reduce the SRH recombination.

  4. Berry phase mechanism of the anomalous Hall effect in a disordered two-dimensional magnetic semiconductor structure.

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

    Oveshnikov, L. N.; Kulbachinskii, V. A.; Davydov, A. B.; Aronzon, B. A.; Rozhansky, I. V.; Averkiev, N. S.; Kugel, K. I.; Tripathi, V.

    2015-11-24

    In this study, the anomalous Hall effect (AHE) arises from the interplay of spin-orbit interactions and ferromagnetic order and is a potentially useful probe of electron spin polarization, especially in nanoscale systems where direct measurement is not feasible. While AHE is rather well-understood in metallic ferromagnets, much less is known about the relevance of different physical mechanisms governing AHE in insulators. As ferromagnetic insulators, but not metals, lend themselves to gatecontrol of electron spin polarization, understanding AHE in the insulating state is valuable from the point of view of spintronic applications. Among the mechanisms proposed in the literature for AHEmore » in insulators, the one related to a geometric (Berry) phase effect has been elusive in past studies. The recent discovery of quantized AHE in magnetically doped topological insulators - essentially a Berry phase effect - provides strong additional motivation to undertake more careful search for geometric phase effects in AHE in the magnetic semiconductors. Here we report our experiments on the temperature and magnetic field dependences of AHE in insulating, strongly-disordered two-dimensional Mn delta-doped semiconductor heterostructures in the hopping regime. In particular, it is shown that at sufficiently low temperatures, the mechanism of AHE related to the Berry phase is favoured.« less

  5. Formation of quantum spin Hall state on Si surface and energy gap scaling with strength of spin orbit coupling

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

    Zhou, Miao; Ming, Wenmei; Liu, Zheng; Wang, Zhengfei; Yao, Yugui; Liu, Feng

    2014-11-19

    For potential applications in spintronics and quantum computing, it is desirable to place a quantum spin Hall insulator [i.e., a 2D topological insulator (TI)] on a substrate while maintaining a large energy gap. Here, we demonstrate a unique approach to create the large-gap 2D TI state on a semiconductor surface, based on first-principles calculations and effective Hamiltonian analysis. We show that when heavy elements with strong spin orbit coupling (SOC) such as Bi and Pb atoms are deposited on a patterned H-Si(111) surface into a hexagonal lattice, they exhibit a 2D TI state with a large energy gap of ≥0.5more » eV. The TI state arises from an intriguing substrate orbital filtering effect that selects a suitable orbital composition around the Fermi level, so that the system can be matched onto a four-band effective model Hamiltonian. Furthermore, it is found that within this model, the SOC gap does not increase monotonically with the increasing strength of SOC. These interesting results may shed new light in future design and fabrication of large-gap topological quantum states.« less

  6. Decommissioning of the Dragon High Temperature Reactor (HTR) Located at the Former United Kingdom Atomic Energy Authority (UKAEA) Research Site at Winfrith - 13180

    SciTech Connect (OSTI)

    Smith, Anthony A.

    2013-07-01

    The Dragon Reactor was constructed at the United Kingdom Atomic Energy Research Establishment at Winfrith in Dorset through the late 1950's and into the early 1960's. It was a High Temperature Gas Cooled Reactor (HTR) with helium gas coolant and graphite moderation. It operated as a fuel testing and demonstration reactor at up to 20 MW (Thermal) from 1964 until 1975, when international funding for this project was terminated. The fuel was removed from the core in 1976 and the reactor was put into Safestore. To meet the UK's Nuclear Decommissioning Authority (NDA) objective to 'drive hazard reduction' [1] it is necessary to decommission and remediate all the Research Sites Restoration Ltd (RSRL) facilities. This includes the Dragon Reactor where the activated core, pressure vessel and control rods and the contaminated primary circuit (including a {sup 90}Sr source) still remain. It is essential to remove these hazards at the appropriate time and return the area occupied by the reactor to a safe condition. (author)

  7. Workforce Diversity Town Hall

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

    2011-08-18

    On August 18, 2011, President Obama issued an Executive Order, "Establishing a Coordinated Government-wide Initiative to Promote Diversity and Inclusion in the Federal Workforce," directing federal agencies to develop strategic plans to recruit and retain a more diverse workforce.

  8. Hall A Virtual Tour

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

  9. Hall B Virtual Tour

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

  10. Hall C Virtual Tour

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

  11. Hall_A

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

  12. Hall_B

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

    N∆ Transition Form Factor & Multipoles The CEBAF Large Acceptance Spectrometer (CLAS) www.jlab.org K. Joo et al., Phys. Rev. Lett. 88 (2002) 122001 F.X. Girod et al. (CLAS Collaboration), Phys. Rev. Lett. 100 (2008) 162002 L. El Fassi et al. (CLAS Collaboration), submitted for publication (2011

  13. Hall_C

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

  14. Hall_D

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

    Dudek et al., Hadron Spectrum Collab. PRD 82:034508 (2010)

  15. Micro-focused Brillouin light scattering study of the magnetization dynamics driven by Spin Hall effect in a transversely magnetized NiFe nanowire

    SciTech Connect (OSTI)

    Madami, M. Carlotti, G.; Gubbiotti, G.; Tacchi, S.; Siracusano, G.; Finocchio, G.; Carpentieri, M.

    2015-05-07

    We employed micro-focused Brillouin light scattering to study the amplification of the thermal spin wave eigenmodes by means of a pure spin current, generated by the spin-Hall effect, in a transversely magnetized Pt(4 nm)/NiFe(4 nm)/SiO{sub 2}(5 nm) layered nanowire with lateral dimensions 500 × 2750 nm{sup 2}. The frequency and the cross section of both the center (fundamental) and the edge spin wave modes have been measured as a function of the intensity of the injected dc electric current. The frequency of both modes exhibits a clear redshift while their cross section is greatly enhanced on increasing the intensity of the injected dc. A threshold-like behavior is observed for a value of the injected dc of 2.8 mA. Interestingly, an additional mode, localized in the central part of the nanowire, appears at higher frequency on increasing the intensity of the injected dc above the threshold value. Micromagnetic simulations were used to quantitatively reproduce the experimental results and to investigate the complex non-linear dynamics induced by the spin-Hall effect, including the modification of the spatial profile of the spin wave modes and the appearance of the extra mode above the threshold.

  16. Single-valley quantum Hall ferromagnet in a dilute MgxZn1-xO/ZnO strongly correlated two-dimensional electron system

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

    Kozuka, Y.; Tsukazaki, A.; Maryenko, D.; Falson, J.; Bell, C.; Kim, M.; Hikita, Y.; Hwang, H. Y.; Kawasaki, M.

    2012-02-03

    We investigate the spin susceptibility (g*m*) of dilute two-dimensional (2D) electrons confined at the MgxZn1-xO/ZnO heterointerface. Magnetotransport measurements show a four-fold enhancement of g*m*, dominated by the increase in the Landé g-factor. The g-factor enhancement leads to a ferromagnetic instability of the electron gas as evidenced by sharp resistance spikes. At high magnetic field, the large g*m* leads to full spin polarization, where we found sudden increase in resistance around the filling factors of half-integer, accompanied by complete disappearance of fractional quantum Hall (QH) states. Along with its large effective mass and the high electron mobility, our result indicates thatmore » the ZnO 2D system is ideal for investigating the effect of electron correlations in the QH regime.« less

  17. First-principles study on the relationship between magnetic anisotropy and anomalous Hall effect of bct-Fe{sub 50}Co{sub 50}

    SciTech Connect (OSTI)

    Hyodo, Kazushige Sakuma, Akimasa; Kota, Yohei

    2014-05-07

    We studied quantitative relationship between the intrinsic anomalous Hall conductivity (σ{sub xy}) and the uniaxial magnetic anisotropy constant (K{sub u}) of bct-Fe{sub 50}Co{sub 50} using first-principles calculation because these quantities originate from spin-orbit interaction. We found that the obtained σ{sub xy} and K{sub u} with changing the axial ratio c/a (1≤c/a≤√(2)) exhibit similar behavior mainly arising from the common band mixing of the minority-spin d{sub xy} and d{sub x{sup 2}−y{sup 2}} states near the Fermi level which is sensitive to c/a.

  18. Highly tunable quantum Hall far-infrared photodetector by use of GaAs/Al{sub x}Ga{sub 1?x}As-graphene composite material

    SciTech Connect (OSTI)

    Tang, Chiu-Chun [Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan (China); Ling, D. C. [Department of Physics, Tamkang University, Tamsui Dist., New Taipei City 25137, Taiwan (China); Chi, C. C.; Chen, Jeng-Chung [Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan (China); Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 30013, Taiwan (China)

    2014-11-03

    We have developed a highly tunable, narrow band far-infrared (FIR) photodetector which utilizes the characteristic merits of graphene and two-dimensional electron gas (2DEG) in GaAs/Al{sub x}Ga{sub 1?x}As heterostructure in the Quantum Hall states (QHS). The heterostructure surface is covered with chemical vapor-deposited graphene, which functions as a transparent top-gate to vary the electron density of the 2DEG. FIR response observed in the vicinity of integer QH regime can be effectively tuned in a wide range of 27102?cm{sup ?1} with a bias voltage less than ?1?V. In addition, we have found that the presence of graphene can genuinely modulate the photoresponse. Our results demonstrate a promising direction for realizing a tunable long-wavelength FIR detector using QHS in GaAs 2DEG/ graphene composite material.

  19. Observation of the inverse spin Hall effect in ZnO thin films: An all-electrical approach to spin injection and detection

    SciTech Connect (OSTI)

    Prestgard, Megan C.; Tiwari, Ashutosh

    2014-03-24

    The inverse spin Hall effect (ISHE) is a newly discovered, quantum mechanical phenomenon where an applied spin current results in the generation of an electrical voltage in the transverse direction. It is anticipated that the ISHE can provide a more simple way of measuring spin currents in spintronic devices. The ISHE was first observed in noble metals that exhibit strong spin-orbit coupling. However, recently, the ISHE has been detected in conventional semiconductors (such as Si and Ge), which possess weak spin-orbit coupling. This suggests that large-spin orbit coupling is not a requirement for observing the ISHE. In this paper, we are reporting the observation of the ISHE in an alternative semiconductor material, zinc oxide (ZnO) using all-electrical means. In our study, we found that when a spin-polarized current is injected into the ZnO film from a NiFe ferromagnetic injector via an MgO tunnel barrier layer, a voltage transverse to both the direction of the current as well as its spin-polarization is generated in the ZnO layer. The polarity of this voltage signal was found to flip on reversing the direction of the injected current as well as on reversing the polarization of the current, consistent with the predictions of the ISHE process. Through careful analysis of the ISHE data, we determined a spin-Hall angle of approximately 1.651 × 10{sup −2} for ZnO, which is two orders of magnitude higher than that of silicon. Observation of a detectable room-temperature ISHE signal in ZnO via electrical injection and detection is a groundbreaking step that opens a path towards achieving transparent spin detectors for next-generation spintronic device technology.

  20. Development of a National M and O Contractor Work Prioritisation Process and its Use as a Progress Measure for Nuclear Clean Up in the United Kingdom

    SciTech Connect (OSTI)

    Waite, R.; Hudson, I.D.; Wareing, M.I.

    2006-07-01

    In July 2004, Her Majesty's Government established a Nuclear Decommissioning Authority (NDA) to assume responsibility for the discharge of the vast majority of the United Kingdom's public sector civil nuclear liabilities. The Energy Act of 2004 outlines in greater detail how the NDA functions, what its responsibilities are, and how these fit into the overall structure of the UK programme for managing and disposing of the liabilities created by a significant element of the UK's early commercial and nuclear weapons activities. The amount of Government funding provided to the NDA will be a key factor in determining what can be achieved. In agreeing how the funds are distributed to the licensed sites, the NDA will need to keep in mind the 'guiding principles' stated in 'Managing the Nuclear Legacy - A Strategy for Action': - Focus on getting the job done to high safety, security and environmental standards; - Best value for money consistent with safety, security and environmental performance; - Openness and transparency. To satisfy these requirements there is a need for a transparent process for justifying and prioritising work that aids decisions about what should be done and when, is straightforward to understand and can be applied by a wide range of stakeholders. To develop such a process, a multi-stakeholder group (the 'Prioritisation Working Group') produced a report published in April 2005 that examined how the process would align with the NDA's overall management processes. It also identified six criteria or 'attributes' that should be taken into account, and a variety of measures, or 'metrics' that could be used to assess each attribute. The report formed the basis of preliminary guidance from NDA to the site licensees that was used to guide their submissions on plans and programmes of work in 2005. Since this report the NDA has been working, with stakeholder input, to develop a prioritisation process to be used during the production of future Life Cycle Baseline (LCBL) and Near Term Work Plan (NTWP) submissions. This paper describes: - The key attributes chosen to address the selection criteria important to various stakeholder groups; - The methodology selected for ranking and weighing the relative importance of each proposed activity; - The linkage between the decision-making processes at the national and site-specific levels with the NDA's annual planning cycles; - The stakeholder engagement activities undertaken to ensure that the process will operate in an open and transparent manner; - The proposed methods by which this process will not only assist in the early selection of the highest priority work, but also will facilitate the annual management of the portfolio of activities being performed at each site; and - The status of actions to institutionalise these processes into the formal procedures for future NDA work planning and progress measurement. Further information can be obtained from the NDA web site www.nda.gov.uk. (authors)

  1. "CONFIRMATORY SURVEY RESULTS FOR THE ABB COMBUSTION ENGINEERING SITE WINDSOR, CONNECTICUT DCN 5158-SR-02-2

    SciTech Connect (OSTI)

    ADAMS, WADE C

    2013-03-25

    The objectives of the confirmatory activities were to provide independent contractor field data reviews and to generate independent radiological data for use by the NRC in evaluating the adequacy and accuracy of the contractor�s procedures and FSS results. ORAU reviewed ABB CE�s decommissioning plan, final status survey plan, and the applicable soil DCGLs, which were developed based on an NRC-approved radiation dose assessment. The surveys include gamma surface scans, gamma direct measurements, and soil sampling.

  2. Measurement of XeI and XeII velocity in the near exit plane of a low-power Hall effect thruster by light induced fluorescence spectroscopy

    SciTech Connect (OSTI)

    Dancheva, Y.; Biancalana, V.; Pagano, D.; Scortecci, F.

    2013-06-15

    Near exit plane non-resonant light induced fluorescence spectroscopy is performed in a Hall effect low-power Xenon thruster at discharge voltage of 250 V and anode flow rate of 0.7 mg/s. Measurements of the axial and radial velocity components are performed, exciting the 6s{sup 2}[3/2]{sub 2}{sup o}{yields}6p{sup 2}[3/2]{sub 2} transition at 823.16 nm in XeI and the 5d[4]{sub 7/2}{yields}6p[3]{sub 5/2}{sup o} transition at 834.724 nm in XeII. No significant deviation from the thermal velocity is observed for XeI. Two most probable ion velocities are registered at a given position with respect to the thruster axis, which are mainly attributed to different areas of creation of ions inside the acceleration channel. The spatial resolution of the set-up is limited by the laser beam size (radius of the order of 0.5 mm) and the fluorescence collection optics, which have a view spot diameter of 8 mm.

  3. Energy conservation and electricity sector liberalization: Case-studies on the development of cogeneration, wind energy and demand-side management in the Netherlands, Denmark, Germany and the United Kingdom

    SciTech Connect (OSTI)

    Slingerland, S.

    1998-07-01

    In this paper, the development of cogeneration, wind energy and demand-side management in the Netherlands, Denmark, Germany and the United Kingdom are compared. It is discussed to what extent these developments are determined by the liberalization process. Three key liberalization variables are identified: unbundling, privatization and introduction of competition. The analysis suggests that unbundling prior to introduction of full competition in generation is particularly successful in stimulating industrial cogeneration; simultaneous introduction of competition and unbundling mainly stimulates non-cogeneration gas-based capacity; and introduction of competition in itself is likely to impede the development of district-heating cogeneration. Furthermore, it is argued that development of wind energy and demand-side management are primarily dependent on the kind of support system set up by policy makers rather than on the liberalization process. Negative impacts of introduction of competition on integrated resource planning and commercial energy services could nevertheless be expected.

  4. Multi-Probe Diagnostic Hall

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

    multiscale fluid dynamics, or extreme electromagnetic field interactions with matter. ... compression science, is vital to a broad spectrum of engineering and defense applications ...

  5. United Kingdom Department for International Development | Open...

    Open Energy Info (EERE)

    Climate Change Resilience Framework Ecuador-Quito City Climate Change Action Plan El Salvador - National Climate Change Strategy Support Eldis Ethiopia-Strategic Climate...

  6. United Kingdom: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    EIA Natural Gas Reserves 292,000,000,000 Cubic Meters (cu m) 40 2010 CIA World Factbook Oil Reserves 3,084,000,000 Barrels (bbl) 31 2010 CIA World Factbook Energy Maps featuring...

  7. Hertfordshire, United Kingdom: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    updating Image needs updating Reference needed Missing content Broken link Other Additional Comments Cancel Submit Categories: Places Stubs Articles with outstanding TODO tasks...

  8. Influence of Ga content on the structure and anomalous Hall effect of Fe{sub 1−x}Ga{sub x} thin films on GaSb(100)

    SciTech Connect (OSTI)

    Anh Tuan, Duong; Shin, Yooleemi; Viet Cuong, Tran; Cho, Sunglae; Phan, The-Long

    2014-05-07

    The Fe{sub 1−x}Ga{sub x} thin films (x = 0.4, 0.5) have been grown on GaSb(100) substrate using molecular beam epitaxy. An epitaxial film with bcc α-Fe crystal structure (A2) is observed in Fe{sub 0.6}Ga{sub 0.4} film, while an impure Fe{sub 3}Ga phase with DO{sub 3} structure is appeared in Fe{sub 0.5}Ga{sub 0.5} film. The saturated magnetizations at room temperature are observed to be 570 emu/cm{sup 3} and 180 emu/cm{sup 3} and the coercivities to be 170 and 364 Oe for Fe{sub 0.6}Ga{sub 0.4} and Fe{sub 0.5}Ga{sub 0.5}, respectively. A hysteresis trend in Hall resistance vs. magnetic field is observed for Fe{sub 0.5}Ga{sub 0.5} film. However, there is a weak hysteresis noticed in Fe{sub 0.4}Ga{sub 0.6} thin film.

  9. Second Generation Fractional Quantum Hall Effect

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

    Transportation Energy Co-Evolution of Biofuels Lignocellulosic Biomass Microalgae ... Research Details -Carried out low temperature and high magnetic field electronic transport ...

  10. Town Hall Meeting | OpenEI Community

    Open Energy Info (EERE)

    introductions - name, company, potential icebreaker (what's your favorite analysis tool, programming language, energy sector..) 5 minutes OpenEI: what's new and coming soon 5...

  11. NUG_TownHall_Oct2009.ppt

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

    (memory, IO, CPU hours) * How easy is it for you to translate your science and research objectives into quantitative computational requirements? - Which is the hardest...

  12. The Honorable,Edward Rendell, '. City Hall

    Office of Legacy Management (LM)

    W.,Alexander Williams (301-427-17i9) of my staff. i ' . Enclosures ,, Director Off-SiteSavannah River Division 'Office of Eastern Areas Programs. Office of Environmental ...

  13. The Honorable Edward Rendell City Hall

    Office of Legacy Management (LM)

    W. Alexander Williams (301-427-1719) of my staff. ), Enclosures, James W. Wagoner II Director ,. : Off-Sit.eSavannah River Division Office of Eastern Area,Programs I Office of ...

  14. National Energy Literacy Virtual Town Hall

    Broader source: Energy.gov [DOE]

    The webinar will be a dynamic, virtual conversation for educators about ongoing efforts from across the country in utilizing the Department of Energy's Energy Literacy Framework to address one of our nation's’ biggest national challenges, energy illiteracy.

  15. Lecture & Dining Halls - Combustion Energy Frontier Research...

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

    Center is a quick 10 minute walk from the Butler dormitories. See campus map for walking directions. There is also a free campus shuttle that will take you from outside the...

  16. User-Program_Town_Hall-11.pptx

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

    representative on the UEC. Nominations were accepted from the floor as follows: * Rafael Verduzco nominated by Marco Nardelli for at---large member, and seconded b y M artyn M...

  17. Spin Hall effects in metallic antiferromagnets - perspectives...

    Office of Scientific and Technical Information (OSTI)

    Authors: Sklenar, Joseph 1 ; Zhang, Wei 2 ; Jungfleisch, Matthias B. 2 ; Jiang, Wanjun 2 ; Saglam, Hilal 3 ; Pearson, John E. 2 ; Ketterson, John B. 4 Search DOE ...

  18. Forest County Potawatomi Community Wundar Hall Project

    Energy Savers [EERE]

    Initial focus primarily on energy usage at major facilities and on renewable ... in northern Wisconsin, resulted in an annual reduction of 170 tons in carbon ...

  19. Temperature-driven band inversion in Pb0.77Sn0.23Se: Optical and Hall effect studies

    SciTech Connect (OSTI)

    Anand, Naween; Buvaev, Sanal; Hebard, A. F.; Tanner, D. B.; Chen, Zhiguo; Li, Zhiqiang; Choudhary, Kamal; Sinnott, S. B.; Gu, Genda; Martin, C.

    2014-12-23

    Optical and Hall-effect measurements have been performed on single crystals of Pb₀.₇₇Sn₀.₂₃Se, a IV-VI mixed chalcogenide. The temperature dependent (10–300 K) reflectance was measured over 40–7000 cm⁻¹ (5–870 meV) with an extension to 15,500 cm⁻¹ (1.92 eV) at room temperature. The reflectance was fit to the Drude-Lorentz model using a single Drude component and several Lorentz oscillators. The optical properties at the measured temperatures were estimated via Kramers-Kronig analysis as well as by the Drude-Lorentz fit. The carriers were p-type with the carrier density determined by Hall measurements. A signature of valence intraband transition is found in the low-energy optical spectra. It is found that the valence-conduction band transition energy as well as the free carrier effective mass reach minimum values at 100 K, suggesting temperature-driven band inversion in the material. Thus, density function theory calculation for the electronic band structure also make similar predictions.

  20. Sonoma County, California | Department of Energy

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

    Sonoma County, California Sonoma County, California Windsor Efficiency PAYS® Location: Town of Windsor in Sonoma County, California Seed Funding: $665,000-a portion of Los Angeles County's $30 million funding Target Building Types: Residential (single-family, multifamily) Website: energyupgradeca.org/county/sonoma/windsor_efficiency Learn more: Read program design details Read program news Promoting Energy Efficiency in Windsor, California, With Water Efficiency Efforts California is known for

  1. Larimer County, Colorado: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Colorado Fort Collins, Colorado Johnstown, Colorado Laporte, Colorado Loveland, Colorado Red Feather Lakes, Colorado Timnath, Colorado Wellington, Colorado Windsor, Colorado...

  2. HiperDNO (Smart Grid Project) (United Kingdom) | Open Energy...

    Open Energy Info (EERE)

    is to develop a new generation of distribution network management systems that exploits novel near to realtime HPC solutions with inherent security and intelligent communications...

  3. Fenix (Smart Grid Project) (United Kingdom) | Open Energy Information

    Open Energy Info (EERE)

    with realistic DER penetration; Development of a layered communication and control solution validated for a comprehensive set of network use cases , including normal...

  4. Kingdom of Saudi Arabia Ministry of Petroleum and Mineral Resources...

    Open Energy Info (EERE)

    leaders and government ministers. The Supreme Council is responsible for petroleum and natural gas policy-making, including contract review. It also sets broad policies for the...

  5. The united kingdom's changing requirements for spent fuel storage

    SciTech Connect (OSTI)

    Hodgson, Z.; Hambley, D.I.; Gregg, R.; Ross, D.N.

    2013-07-01

    The UK is adopting an open fuel cycle, and is necessarily moving to a regime of long term storage of spent fuel, followed by geological disposal once a geological disposal facility (GDF) is available. The earliest GDF receipt date for legacy spent fuel is assumed to be 2075. The UK is set to embark on a programme of new nuclear build to maintain a nuclear energy contribution of 16 GW. Additionally, the UK are considering a significant expansion of nuclear energy in order to meet carbon reduction targets and it is plausible to foresee a scenario where up to 75 GW from nuclear power production could be deployed in the UK by the mid 21. century. Such an expansion, could lead to spent fuel storage and its disposal being a dominant issue for the UK Government, the utilities and the public. If the UK were to transition a closed fuel cycle, then spent fuel storage should become less onerous depending on the timescales. The UK has demonstrated a preference for wet storage of spent fuel on an interim basis. The UK has adopted an approach of centralised storage, but a 16 GW new build programme and any significant expansion of this may push the UK towards distributed spent fuel storage at a number of reactors station sites across the UK.

  6. 1,"Kingdom Community Wind","Wind","Green Mountain Power Corp...

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

    3,"Bellows Falls","Hydroelectric","TransCanada Hydro Northeast Inc.,",48.3 4,"Wilder","Hydroelectric","TransCanada Hydro Northeast Inc.,",41.3 5,"Harriman","Hydroelectric","T...

  7. London, United Kingdom: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Ltd ACF Ltd BMT Renewables Ltd BP Alternative Energy BP Plc Beetle Capital Partners BCP Biodiesel Energy Trading Limited Bioethanol Limited Biomass Fuels Ltd BFL Bloomberg New...

  8. EM Renews Information-Sharing Agreement with United Kingdom's Nuclear

    Office of Environmental Management (EM)

    Laboratory | Department of Energy Removes Radioactive Components from Former Reactor at Oak Ridge National Laboratory EM Removes Radioactive Components from Former Reactor at Oak Ridge National Laboratory September 24, 2015 - 12:10pm Addthis Federal and contractor employees who worked on the project to remove irradiated components from a reactor pool gather to watch the transport of the shipment offsite for disposition. Federal and contractor employees who worked on the project to remove

  9. Geobacter: The Junk Food Connoisseurs of the Bacterial Kingdom

    Broader source: Energy.gov [DOE]

    With a healthy appetitie for uranium and petroleum, this family of bacteria clean up nuclear waste and other toxic materials. A team of researchers has discovered exactly how they use their arms to do this.

  10. EUDEEP (Smart Grid Project) (United Kingdom) | Open Energy Information

    Open Energy Info (EERE)

    technical and nontechnical barriers that prevent a massive deployment of distributed energy resources (DER) in Europe. In partnership with manu facturers, research organizations,...

  11. Final Report-Confirmatory Survey Results for the ABB Combustion Engineering Site, Windsor, Connecticut; Revision 1 (DCN 5158-SR-02-1) (Docket No. 030-03754; RFTA No. 12-003)

    SciTech Connect (OSTI)

    ADAMS, WADE C

    2013-01-28

    The objectives of the confirmatory activities were to provide independent contractor field data reviews and to generate independent radiological data for use by the NRC in evaluating the adequacy and accuracy of the contractor�s procedures and FSS results. ORAU reviewed ABB CE�s decommissioning plan, final status survey plan, and the applicable soil DCGLs, which were developed based on an NRC-approved radiation dose assessment. The surveys included gamma surface scans, gamma direct measurements, and soil sampling.

  12. TBA-0042- In the Matter of Curtis Hall

    Broader source: Energy.gov [DOE]

    This Decision considers two Appeals of an Initial Agency Decision (IAD) issued on March 15, 2007, by a Hearing Officer in the Department of Energy’s (DOE) Office of Hearings and Appeals (OHA). The...

  13. Town Hall Slides_6_19_14.pptx

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

    Three main options under consideration: 1. VJT tool using 2" titanium rods 2. Gantry camera 3. Existing process (pole and camera) VJT tool with titanium rods - Option 1 VJT tool ...

  14. Town Hall Slides 3_27_14.pptx

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

    March 27, 2014 AGENDA ITEMS Joe Franco CBFO Manager Meeting Agenda * WIPP Status presentations * Tammy Reynolds * Fran Williams * Joe Franco * Audience Questions * One question at a time please * Final Remarks / Close WIPP RECOVERY PLAN ACTIVITIES Tammy Reynolds NWP Recovery Manager WIPP Recovery Plan Activities * Install a Continuous Air Monitor (CAM) at Station B * Provides real time radiological information on exhaust stack air * Installation to complete this week * One week run time to

  15. Town Hall Slides 4-10-14 FINAL.pptx

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

    0, 2014 Meeting Agenda *! Opening Comments - Mayor Janway *! Update on Entries, Additional Recovery Items - Dana Bryson, Tammy Reynolds *! Environmental Sampling - Stewart Jones *! Environmental Protection Agency *! Worth Noting - Dana Bryson *! Shipments to Waste Control Specialists *! Audience Questions *! One question at a time please UPDATE ON ENTRIES Dana Bryson, CBFO Deputy Manager Tammy Reynolds, NWP Deputy Recovery Manager Re-Entry Phase 1 Phase 2A Phase 2B Phase 3 *! Unmanned Entry *!

  16. Town Hall Slides 9.4.14 FINAL.pptx

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

    September 4, 2014 Meeting Agenda *! Opening Comments - Mayor Dale Janway *! Introductions / Guidelines - Tim Runyon (Moderator) *! Recovery Update - Dana Bryson *! Recovery Planning Activities - Tammy Reynolds *! Closing Comments - Dana Bryson *! Audience Questions *! One question at a time please RECOVERY UPDATE Dana Bryson, Deputy CBFO Manager Overview of Week's Activities *! Routine entries - recovering the underground *! Waste hoist project *! Reach team support *! Recovery planning RECOVERY

  17. Town_Hall_Slides_1_7_16.pdf

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

  18. Town_Hall_Slides_2_5_15.pdf

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

  19. Town_Hall_Slides_4_2_15.pdf

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

  20. Town_Hall_Slides_5_22_14.pptx

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

    22, 2014 Meeting Agenda * Opening Comments - Mayor Dale Janway * Panel Member Introductions - John Heaton (Moderator) * CBFO Manager Remarks - Joe Franco * Update on Phase 3 Activities - Jim Blankenhorn * May 15 Entry * May 19 Entry * CEMRC Monitoring Update - Russell Hardy * Audience Questions * One question at a time please OPENING COMMENTS Joe Franco, CBFO Manager This Week's Events * Report from recent trip to Washington, D.C. * NMED Administrative Order * May 15 and May 19 entry updates *

  1. Town_Hall_Slides_5_8_14

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

    8, 2014 Meeting Agenda * Opening Comments - Mayor Janway * Panel Member Introductions - John Heaton (Moderator) * CBFO Manager Remarks - Joe Franco * Update on Phase 3 Activities - Jim Blankenhorn * Event investigation continues * Environmental sampling * New Mexico Environment Department - Ryan Flynn * Closing Remarks - Joe Franco * Audience Questions * One question at a time please OPENING COMMENTS Joe Franco, CBFO Manager UPDATE ON RECOVERY ACTIVITIES Jim Blankenhorn, NWP Recovery Manager

  2. Building America Top Innovations Hall of Fame Profile … Zero...

    Energy Savers [EERE]

    Four California home builders who worked with Building America to incorporate energy ... This project, Vista Montana, in Watsonville, California, was the largest near zero energy ...

  3. Building America Top Innovations Hall of Fame Profile ? Moisture...

    Energy Savers [EERE]

    shared the lessons learned in manufactured housing with site builders including Tommy Williams Homes of Gainesville, Florida, who implemented measures like mastic sealing ducts,...

  4. Building America Top Innovations Hall of Fame Profile ? Reduced...

    Energy Savers [EERE]

    linkage between high- performance homes and reduced call-backs, with builders reporting big reductions in call-backs since the program began in 1995. Although few builders are...

  5. Building America Top Innovations Hall of Fame Profile … EEBA...

    Energy Savers [EERE]

    energy codes and voluntary programs such as ENERGY STAR for Homes and the DOE Challenge Home continue transforming the ... of the Water Management Guide, written by Joe ...

  6. Observation of the Integer Quantum Hall Effect in Record High...

    Office of Scientific and Technical Information (OSTI)

    Abstract not provided. Authors: Pan, Wei ; Howell, Stephen Wayne ; Ohta, Taisuke ; Friedmann, Thomas Aquinas ; Ross III, Anthony Joseph Publication Date: 2010-03-01 OSTI ...

  7. The Honorable'George Kubin City Hall Dear Mayor Kubin:

    Office of Legacy Management (LM)

    W; Alexander Williams ' (301-427-1719) of my staff,. I '. Sincerely. n-l James W. Wagoner II r' Director ' .' Off-SiteSavannah River Program Division Office of Eastern Area ...

  8. Microsoft Word - Town-Hall-meeting_notes_090215.docx

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

    State Brian Long-U. Tennessee Yayoi Takamura-University of California, Davis Yang Zhang-U. Illinois (possibly Secretary) Milan Buncick- AEgis Technologies Vice Chair:...

  9. Building America Top Innovations Hall of Fame Profile … Basement...

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

    and durable construction practices are critical for basements because basements can account for 10% to 30% of a home's total heat loss and provide significant risk of moisture ...

  10. Controlling the Plasma Flow in the Miniaturized Cylindrical Hall Thruster

    SciTech Connect (OSTI)

    A. Smirnov, Y. Raitses and N.J. Fisch

    2008-03-04

    A substantial narrowmg of the plume of the cylindrical RaIl thruster (CRT) was observed upon the enhancement of the electron emission from the hollow cathode discharge, which implies the possibility for the thruster efficiency increase due to the ion beam focusing. It is demonstrated that the miniaturized CRT can be operated in the non-self-sustained regime, with the discharge current limited by the cathode electron emission. The thruster operation in this mode greatly expands the range of the plasma and discharge parameters normally accessible for the CRT.

  11. Secretary Moniz Leads DOE Town Hall | Department of Energy

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

    Erin R. Pierce Erin R. Pierce Former Digital Communications Specialist, Office of Public Affairs Secretary Moniz: Week One Watch the swearing-in ceremony. See a video recap of ...

  12. President Obama Talks Clean Energy At Facebook Town Hall | Department...

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

    Importantly to us, he highlighted the importance of science education and clean energy innovation throughout the conversation. Check out the video below for President Obama's ...

  13. Quantum Hall ice (Journal Article) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    GrantContract Number: LANLLDRD Type: Publisher's Accepted Manuscript Journal Name: Physical Review B Additional Journal Information: Journal Volume: 90; Journal Issue: 24; ...

  14. Building America Top Innovations Hall of Fame Profile … High...

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

    ... extremely cost-adverse, even with energy-efficiency measures that result in greater monthly energy savings than the incremental monthly mortgage expense attributed to the measure. ...

  15. Building America Top Innovations Hall of Fame Profile … Model...

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

    Building America research has improved our ability to model hot water use so new hot water ... Energy savings for certain residential building technologies depend greatly on occupant ...

  16. Building America Top Innovations Hall of Fame Profile … Tankless...

    Energy Savers [EERE]

    water heaters was one of many energy-efficiency recommendations Building America's research team IBACOS had for San Antonio builder Imagine Homes. Although tankless gas water ...

  17. Building America Top Innovations Hall of Fame Profile … High...

    Energy Savers [EERE]

    ... said Rob Hammon of ConSol. * SMUD learned that west-facing systems contributed more to peak-demand reduction, which has helped shape their future solar electric incentive programs. ...

  18. Building America Top Innovations Hall of Fame Profile … Affordable...

    Energy Savers [EERE]

    affordable, high-performance homes in New Mexico and Colorado with HERS scores of 0 to ... The builder also sold another 18 homes under its "solar 30" plan that brought the HERS ...

  19. Town Hall Meeting #3: Green Button | OpenEI Community

    Open Energy Info (EERE)

    You must login in order to post into this group. Latest blog post comments Mike o spectacular dataset Posted: 9 Aug 2015 - 14:46 by: Mike o Calum Residential idf Files Posted:...

  20. Building America Top Innovations Hall of Fame Profile … Building...

    Energy Savers [EERE]

    a climate zone map for the DOE based on the IECC climate zone map. It may not be intuitively obvious why a U.S. climate zone map is so important to the construction industry. ...

  1. Building America Top Innovations Hall of Fame Profile … Building...

    Energy Savers [EERE]

    This robust analysis engine is fully linked to another ... The sequential search optimization technique used by BEopt finds ... by private-sector HERS software tools that have helped ...

  2. New JLab/Hall A Deeply Virtual Compton Scattering results

    SciTech Connect (OSTI)

    Defurne, Maxime

    2015-08-01

    New data points for unpolarized Deeply Virtual Compton Scattering cross sections have been extracted from the E00-110 experiment at Q2=1.9 GeV2 effectively doubling the statistics available in the valence region. A careful study of systematic uncertainties has been performed.

  3. Building America Top Innovations Hall of Fame Profile ? ENERGY...

    Energy Savers [EERE]

    worked with Building America to build all 290 units at its Cobblefield development to ENERGY STAR criteria. The builder was one of several featured in a series of guides...

  4. Microscopic theory of quantum anomalous Hall effect in graphene...

    Office of Scientific and Technical Information (OSTI)

    American Physical Society Sponsoring Org: USDOE Country of Publication: United States Language: English Word Cloud More Like This Free Publicly Accessible Full Text Accepted...

  5. Quantum Anomalous Hall Effect in 2D Organic Topological Insulators...

    Office of Scientific and Technical Information (OSTI)

    American Physical Society Sponsoring Org: USDOE Country of Publication: United States Language: English Word Cloud More Like This Free Publicly Accessible Full Text Accepted...

  6. Spin Hall Effects in Metallic Antiferromagnets (Journal Article...

    Office of Scientific and Technical Information (OSTI)

    American Physical Society Sponsoring Org: USDOE Country of Publication: United States Language: English Word Cloud More Like This Free Publicly Accessible Full Text Accepted...

  7. Reduced spin-Hall effects from magnetic proximity (Journal Article...

    Office of Scientific and Technical Information (OSTI)

    Authors: Zhang, Wei ; Jungfleisch, Matthias B. ; Jiang, Wanjun ; Liu, Yaohua ; Pearson, John E. ; Velthuis, Suzanne G. E. te ; Hoffmann, Axel ; Freimuth, Frank ; Mokrousov,...

  8. President Obama Talks Clean Energy At Facebook Town Hall | Department...

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

    and the purpose and impact of the 2009 Recovery Act: "We made the largest investment in history in clean energy research, and it's really paying off. For example, when I came...

  9. Building America Top Innovations Hall of Fame Profile … High...

    Energy Savers [EERE]

    Each home achieved a Home Energy Rating Score (HERS) of 70 or better while ensuring the resulting utility bill savings ... a 0.92 energy factor (EF) electric tank hot water heater, ...

  10. Building America Top Innovations Hall of Fame Profile ? Unvented...

    Energy Savers [EERE]

    can often have a dew point that is higher than the interior crawlspace framing surface temperature. As evidence, existing vented crawlspaces have experienced serious moisture...

  11. Diversity Town Hall Draws a Crowd at the Energy Department

    Broader source: Energy.gov [DOE]

    “For our own good, we want as wide of a talent pool as we can get,” Secretary Steven Chu said in his remarks to employees. “[Diversity] is a good thing and an important thing to do. It’s also the right thing to do.”

  12. Building America Top Innovations Hall of Fame Profile … DOE...

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

    The DOE Challenge Home is intended to serve as a responsible definition for zero net-energy-ready homes that ensures a broad array of home-performance attributes are effectively ...

  13. JLab, Physics Community Mourns Death of Jean Mougey, First Hall...

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

    Lab, and a director of the Nuclear Physics Division at CEA Saclay, passed away from a heart attack on Nov. 5, 2015, in Grenoble. Jean was born in the French town of Angers, by...

  14. Building America Top Innovations Hall of Fame Profile … Community...

    Energy Savers [EERE]

    ... had at Civano with failed solar water-heating systems: 1) choose a solar thermal collector with single, not ... and 6) do not use continuous hot-water recirculation systems. ...

  15. Microsoft Word - UEC Town_Hall_Meeting_notes.docx

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

    * John Lange, Legislative Assistant to Congressman Robert Hurt, 5th District VA * Xan Fishman, Legislative Assistant to Congressman John Delany, 6th District MD * Erika Appel,...

  16. Building America Top Innovations Hall of Fame Profile … Outside...

    Energy Savers [EERE]

    Outside Air Ventilation Controller Building America researchers developed technologies to ... reduce, delay, or completely eliminate air conditioner operation resulting in both ...

  17. Building America Top Innovations Hall of Fame Profile … Attic...

    Energy Savers [EERE]

    Terminology Air Barrier Material (ABM) --- A does not allow air to pass throu plywoodOSB, foam board, duc lumber. Backing --- Any material that s be sprayed so as to provide an ...

  18. Building America Top Innovations Hall of Fame Profile … Thermal...

    Energy Savers [EERE]

    the importance of thermal bypass air barriers, which led to their inclusion in ... Air sealing of the home's thermal enclosure has been required by the energy code for many ...

  19. Microsoft Word - Town-Hall-meeting_2014.docx

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

    (LSPR) spectroscopy Jilai Ding Georgia Institute of Technology Poster 28, Study of Ionic Dynamics in Nanostructured Ceria through Lateral Electrochemical Measurements and Finite...

  20. Rebuilding It Better: Greensburg, Kansas, City Hall | Open Energy...

    Open Energy Info (EERE)

    *Other commercial and public buildings will be designed to LEED Platinum or Gold rating levels *100% renewable electricity 100% of the time Reduce GHG emissions by 36%...

  1. Forest County Potawatomi Community Parking Ramp and Wundar Hall...

    Energy Savers [EERE]

    Initial focus primarily on energy usage at major facilities and on renewable ... a 10-year warranty that will reduce annual maintenance costs 7,000 annually for ...

  2. Building America Top Innovations Hall of Fame Profile … House...

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

    Building America funds integrated research in market- ready technology solutions through ... assessments relative to each builder or retrofit contractor's standard practice. ...

  3. Formerly Utilized Sites Remedial Action Program Fact Sheet

    Office of Environmental Management (EM)

    ... W.R. Grace at Curtis Bay Maywood Chemical Superfund DuPont Chambers Works Painesville ... Combustion Engineering Site Windsor, Connecticut DuPont Chambers Works Deepwater, New ...

  4. Solarbrite | Open Energy Information

    Open Energy Info (EERE)

    Jump to: navigation, search Name: Solarbrite Place: South Windsor, Connecticut Zip: 6074 Product: PV system design and installation References: Solarbrite1 This article is a...

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

    Office of Scientific and Technical Information (OSTI)

    Report",,,,"Alstom Power Inc., Windsor, CT (United States)","USDOE","01 COAL, LIGNITE, AND PEAT; 54 ENVIRONMENTAL SCIENCES Clean Coal Technology; Coal-Fuels;...

  6. Concern for the Environment | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    over 14,000 sailors, the Department of Energy S1C Prototype Reactor Site in Windsor, Connecticut, was returned to "green field" conditions. Naval Nuclear Propulsion Program...

  7. Weston, Vermont: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":"" Hide Map Weston is a town in Windsor County, Vermont. It falls under Vermont's At-large congressional...

  8. Bridgewater, Vermont: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    t":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":"" Hide Map Bridgewater is a town in Windsor County, Vermont. It falls under Vermont's At-large...

  9. Reading, Vermont: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":"" Hide Map Reading is a town in Windsor County, Vermont. It falls under Vermont's At-large congressional...

  10. Front Range Energy LLC | Open Energy Information

    Open Energy Info (EERE)

    search Logo: Front Range Energy LLC Name: Front Range Energy LLC Address: 31375 Great Western Dr Place: Windsor, Colorado Zip: 80550 Region: Rockies Area Sector: Biofuels...

  11. Infinity Fuel Cell and Hydrogen Inc | Open Energy Information

    Open Energy Info (EERE)

    Hydrogen Inc Jump to: navigation, search Name: Infinity Fuel Cell and Hydrogen Inc Address: 431A Hayden Station Road Place: Windsor, Connecticut Zip: 06095 Region: Northeast - NY...

  12. Center for Materials at Irradiation and Mechanical Extremes: Los National

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

    Alamos Laboratory Anthony David Rollett image of anthony rollet Contact Information Carnegie Mellon University Department of Materials Sci.& Eng. Wean Hall 3313, 5000 Forbes Ave. Pittsburgh, PA 15213-3890 Phone: (412) 268-3177 Email: rollett@andrew.cmu.edu Bio Education M.A. (1976), Metallurgy and Materials Science, Cambridge University, United Kingdom Ph.D. (1987) Materials Engineering, Drexel University Research and Professional Experience Professor of Materials Science &

  13. Nuclear Physics Program

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

    Hall A Hall B Hall C Hall D Physics Departments Administrative Office Data Acquisition Group Detector & Imaging Group Electronics Group User Liaison Nuclear Physics Program HALL A ...

  14. DLC+VIT4IP (Smart Grid Project) (United Kingdom) | Open Energy...

    Open Energy Info (EERE)

    applications. These shall include the existing power distribution network for novel services in smart electricity distribution networks such as demand side management,...

  15. Price of Liquefied U.S. Natural Gas Re-Exports to United Kingdom (Dollars

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

    per Thousand Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2010 -- -- -- -- -- -- -- -- -- -- 6.79 7.32 2011 7.66 -- -- -- -- -- -- -- -- -- -- -- 2012 -- -- -- -- -- -- -- -- -- -- -- -- 2014 -- -- -- -- -- -- -- -- -- -- -- -- 2015 -- -- -- -- -- -- -- -- -- -- -- -- 2016

  16. Liquefied U.S. Natural Gas Re-Exports to United Kingdom (Million Cubic

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

    Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2010 0 0 0 0 0 0 0 0 0 0 3,379 6,206 2011 2,862 0 0 0 0 0 0 0 0 0 0 0 2012 0 0 0 0 0 0 0 0 0 0 0 0 2014 0 0 0 0 0 0 0 0 0 0 0 0 2015 0 0 0 0 0 0 0 0 0 0 0 0 2016

  17. Interpreting, correlating, and predicting the multimedia concentrations of PCDD/Fs in the United Kingdom

    SciTech Connect (OSTI)

    Cole, J.G.; Mackay, D.; Jones, K.C.; Alcock, R.E.

    1999-02-01

    Reported concentrated of 17 polychlorinated dibenzo-p-dioxin and furan congeners or congener groups in ten environmental media of the UK have been compiled. The relative equilibrium status of each congener is deduced with respect to its concentration in urban air which is regarded as the primary source of multimedia contamination. This is accomplished by calculating the equilibrium lipid partitioning (ELP) concentration for each congener and medium using partitioning information derived from measured physical chemical properties. It is shown that the extents of departure from equilibrium conditions between media are consistent for all congeners except the octa-chlorinated compounds. This method of analyzing monitoring data and the consistency of intermedia ELP concentration ratios facilitates the interpretation of the fate and levels of these persistent chemicals in a multimedia environment and yields an approximate predictive capability by which levels in one medium can be used to estimate levels in other media. Benefits of this ELP concentration approach are discussed as a means of enhancing the more complete and detailed interpretation of monitoring data for persistent compounds.

  18. Price Liquefied Sabine Pass, LA Natural Gas Exports Price to United Kingdom

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

    (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's -- -- -- 2010's 6.93 7.66 -- -- --

  19. Price Liquefied Sabine Pass, LA Natural Gas Exports Price to United Kingdom

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

    (Dollars per Thousand Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2011 7.66

  20. Price of Liquefied U.S. Natural Gas Exports to United Kingdom (Dollars per

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

    Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's -- -- -- 2010's 7.13 7.66

  1. Price of Liquefied U.S. Natural Gas Exports to United Kingdom (Dollars per

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

    Thousand Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2010 -- -- -- -- -- -- -- -- -- -- 6.79 7.32 2011 7.66 -- -- -- -- -- -- -- --

  2. Price of Liquefied U.S. Natural Gas Re-Exports to United Kingdom (Dollars

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

    per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's -- -- -- 2010's 7.13 7.66 --

  3. KINGDOM BY DTlE ATOMIC UNITED ESERG Y,AljTHORK'Y

    Office of Legacy Management (LM)

    or to identify positively wnether certain seismic si3nals come from earthquakes or man-made explosions. Fortunately, there is clearly H widespread desire - fully shared by...

  4. Liquefied U.S. Natural Gas Re-Exports to United Kingdom (Million Cubic

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

    Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 0 0 2010's 9,584 2,862 0

  5. Development Of Strategy For The Management Of LLW In The United Kingdom

    SciTech Connect (OSTI)

    Wareing, A.S.; Fisher, J.

    2008-07-01

    The Nuclear Decommissioning Authority (NDA) is a UK non-departmental public body with a remit to clean up the civil public sector nuclear legacy. Much work has been done to date on developing contractor competition for the management of NDA-owned sites, including the UK's principal disposal facility: the Low Level Waste Repository (LLWR) in Cumbria. The competition goals and principles are integrated with the framework for the development of a UK Low Level Waste (LLW) management plan, through which the NDA will deliver its commitments to UK Government and stakeholders. Nexia Solutions has undertaken work for the NDA in assessing strategic options and scenarios for the management and disposal of current UK LLW. The volumetric, radiological and strategic limitations of existing disposition routes have been assessed against the inventories and characteristics of LLW forecast to arise. A number of potential alternative scenarios and variants for future LLW management have been modelled and assessed. (authors)

  6. Energy implications of the thermal recovery of biodegradable municipal waste materials in the United Kingdom

    SciTech Connect (OSTI)

    Burnley, Stephen; Phillips, Rhiannon; Coleman, Terry; Rampling, Terence

    2011-09-15

    Highlights: > Energy balances were calculated for the thermal treatment of biodegradable wastes. > For wood and RDF, combustion in dedicated facilities was the best option. > For paper, garden and food wastes and mixed waste incineration was the best option. > For low moisture paper, gasification provided the optimum solution. - Abstract: Waste management policies and legislation in many developed countries call for a reduction in the quantity of biodegradable waste landfilled. Anaerobic digestion, combustion and gasification are options for managing biodegradable waste while generating renewable energy. However, very little research has been carried to establish the overall energy balance of the collection, preparation and energy recovery processes for different types of wastes. Without this information, it is impossible to determine the optimum method for managing a particular waste to recover renewable energy. In this study, energy balances were carried out for the thermal processing of food waste, garden waste, wood, waste paper and the non-recyclable fraction of municipal waste. For all of these wastes, combustion in dedicated facilities or incineration with the municipal waste stream was the most energy-advantageous option. However, we identified a lack of reliable information on the energy consumed in collecting individual wastes and preparing the wastes for thermal processing. There was also little reliable information on the performance and efficiency of anaerobic digestion and gasification facilities for waste.

  7. An assessment of using oil shale for power production in the Hashemite Kingdom of Jordan

    SciTech Connect (OSTI)

    Hill, L.J.; Holcomb, R.S.; Petrich, C.H.; Roop, R.D.

    1990-11-01

    This report addresses the oil shale-for-power-production option in Jordan. Under consideration are 20- and 50-MW demonstration units and a 400-MW, commercial-scale plant with, at the 400-MW scale, a mining operation capable of supplying 7.8 million tonnes per year of shale fuel and also capable of disposal of up to 6.1 million tonnes per year of wetted ash. The plant would be a direct combustion facility, burning crushed oil shale through use of circulating fluidized bed combustion technology. The report emphasizes four areas: (1) the need for power in Jordan, (2) environmental aspects of the proposed oil shale-for-power plant(s), (3) the engineering feasibility of using Jordan's oil shale in circulating fluidized bed combustion (CFBC) boiler, and (4) the economic feasibility of the proposed plant(s). A sensitivity study was conducted to determine the economic feasibility of the proposed plant(s) under different cost assumptions and revenue flows over the plant's lifetime. The sensitivity results are extended to include the major extra-firm benefits of the shale-for-power option: (1) foreign exchange savings from using domestic energy resources, (2) aggregate income effects of using Jordan's indigenous labor force, and (3) a higher level of energy security. 14 figs., 47 tabs.

  8. U.S. Department of Energy Welcomes the United Kingdom as 21st...

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

    with Australia, Bulgaria, Ghana, Hungary, Jordan, Kazakhstan, Lithuania, Poland, Romania, Slovenia, and the Ukraine. "The UK shares in the vision of improved non-proliferation ...

  9. A Resurgence of United Kingdom Nuclear Power Research (2011 EFRC Forum)

    ScienceCinema (OSTI)

    Grimes, Robin W. (Imperial College, London, UK)

    2012-03-14

    Robin W. Grimes, Professor at Imperial College, London,was the third speaker in the the May 26, 2011 EFRC Forum session, "Global Perspectives on Frontiers in Energy Research." In his presentation, Professor Grimes discussed recent research endeavors in advanced nuclear energy systems being pursued in the UK. The 2011 EFRC Summit and Forum brought together the EFRC community and science and policy leaders from universities, national laboratories, industry and government to discuss "Science for our Nation's Energy Future." In August 2009, the Office of Science established 46 Energy Frontier Research Centers. The EFRCs are collaborative research efforts intended to accelerate high-risk, high-reward fundamental research, the scientific basis for transformative energy technologies of the future. These Centers involve universities, national laboratories, nonprofit organizations, and for-profit firms, singly or in partnerships, selected by scientific peer review. They are funded at $2 to $5 million per year for a total planned DOE commitment of $777 million over the initial five-year award period, pending Congressional appropriations. These integrated, multi-investigator Centers are conducting fundamental research focusing on one or more of several ?grand challenges? and use-inspired ?basic research needs? recently identified in major strategic planning efforts by the scientific community. The purpose of the EFRCs is to integrate the talents and expertise of leading scientists in a setting designed to accelerate research that transforms the future of energy and the environment.

  10. Diagnostic experiments at a 3 MeV test stand at Rutherford Appleton Laboratory (United Kingdom)

    SciTech Connect (OSTI)

    Gabor, C.; Faircloth, D. C.; Lawrie, S. R.; Letchford, A. P.; Lee, D. A.; Pozimski, J. K.

    2010-02-15

    A front end is currently under construction consisting of a H{sup -} Penning ion source (65 keV, 60 mA), low energy beam transport (LEBT), and radio frequency quadrupole (3 MeV output energy) with a medium energy beam transport suitable for high power proton applications. Diagnostics can be divided either in destructive techniques such as beam profile monitor, pepperpot, slit-slit emittance scanner (preferably used during commissioning) or nondestructive, permanently installed devices such as photodetachment-based techniques. Another way to determine beam distributions is a scintillator with charge-coupled device camera. First experiments have been performed to control the beam injection into the LEBT. The influence of beam parameters such as particle energy and space-charge compensation on the two-dimensional distribution and profiles will be presented.

  11. The Greening of the Middle Kingdom: The Story of Energy Efficiency in China

    SciTech Connect (OSTI)

    Levine, Mark D.; Zhou, Nan; Price, Lynn

    2009-05-01

    The dominant image of China's energy system is of billowing smokestacks from the combustion of coal. More heavily dependent on coal than any other major country, China uses it for about 70 percent of its energy (NBS, 2008). Furthermore, until recently, China had very few environmental controls on emissions from coal combustion; recent efforts to control sulfur dioxide (SO{sub 2}) emissions appear to be meeting with some success (Economy, 2007, 2009). Figure 1 shows the dominant use of coal in China's energy system from 1950 to 1980 (NBS, various years). However, this is just one side of China's energy story. Figure 2 illustrates the second part, and what may be the most important part of the story - China's energy system since 1980, shortly after Deng Xiaoping assumed full leadership. This figure compares the trends in energy consumption and gross domestic product (GDP) by indexing both values to 100 in 1980. The upper line shows what energy consumption in China would have been if it had grown at the same rate as GDP, since energy consumption usually increases in lockstep with GDP in an industrializing, developing country, at least until it reaches a high economic level. The lower line in Figure 2 shows China's actual energy consumption, also indexed to 1980. The striking difference between the lines shows that GDP in China grew much faster than energy demand from 1980 to 2002. As a result, by 2002 energy and energy-related carbon dioxide (CO{sub 2}) emissions were more than 40% percent of what they would have been if energy and GDP had grown in tandem. In the next chapter of China's energy history, from 2002 to 2005, the increase in energy demand outstripped a very rapidly growing economy, and because of the large size of the Chinese economy, the increase had substantial impacts. The construction of power plants increased to 100 gigawatts per year; over the three-year period newly constructed plants had a capacity of more than 30 percent of total electricity-generation capacity in the United States. At the same time, energy-related CO{sub 2} emissions in China increased dramatically. In the latest stage, another abrupt change, this time for the better in terms of energy efficiency, began late in 2005. As senior officials in the government turned their attention to the problem of growing energy demand, the government set a mandatory goal for 2010 of a 20 percent reduction in energy intensity (defined as energy use per unit of GDP) from 2005 levels. To meet this goal, China undertook significant legislative, regulatory, and organizational reforms at the national, provincial, and municipal levels to ensure that measures to reduce energy intensity would be implemented in all sectors and activities in China. At the time of this writing, it appears that China is on its way to meeting the 20 percent goal, thus reducing CO{sub 2} emissions by 1.5 billion tones, as compared with consumption at 2005 energy-intensity levels. In this paper, we describe and assess these three significant periods in China's energy story and provide a context by briefly reviewing the three decades prior to 1980.

  12. CX-007063: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Geothermal Incentive ProgramCX(s) Applied: A1, A9, B5.1Date: 10/19/2011Location(s): Windsor, ConnecticutOffice(s): Energy Efficiency and Renewable Energy, National Energy Technology Laboratory

  13. White River Junction, Vermont: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. White River Junction is a census-designated place in Windsor County, Vermont. It falls under...

  14. Concern for the Environment | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    After operating for 34 years and training over 14,000 sailors, the Department of Energy S1C Prototype Reactor Site in Windsor, Connecticut, was returned to "green field"...

  15. environment

    National Nuclear Security Administration (NNSA)

    After operating for 34 years and training over 14,000 sailors, the Department of Energy S1C Prototype Reactor Site in Windsor, Connecticut, was returned to "green field"...

  16. FE Categorical Exclusions | Department of Energy

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

    Categorical Exclusion Determination Coal-Based Integrated Gasification Fuel Cell Project: Phase II CX(s) Applied: B3.6 Date: 09162011 Location(s): South Windsor, Connecticut...

  17. Site map | Jefferson Lab

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

    Hall A Hall B Hall C Hall D LDRD Nuclear Physics Radiation Detector & Imaging Recent Experiments SRF Institute Theory Center Users & Visiting Scientists CAREERS Appraisals Benefits...

  18. United States Government

    Office of Legacy Management (LM)

    D;F&g,8 C-r-I 3-3 .*. United States Government . memorandum DATE: JUNZO 1994 -... REPLY TO A?TN OF: EM-421 (W. A. Williams, 903-8149) Authority Determination -- Combustion Engineering Site, Windsor, SUBJECT: Connecticut To' The File The attached review, documents the basis for determining whether the Department of Energy (DOE) has authority for taking remedial action at the Combustion Engineering (CE) Site in Windsor, Connecticut, under the Formerly Utilized Sites Remedial Action Program. CE

  19. June 25, 2014 in 100D Hildebrand Hall | Center for Gas SeparationsRele...

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

    Bess Vlaisavljevich (Dept. of Chemical and Biomolecular Engineering, UC Berkeley) Adsorption Mechanism of CO2 in mmen-Mg2(dobpdc), an Amine Functionalized Metal Organic...

  20. February 25, 2015 in 100E Hildebrand Hall starts at 11:45am ...

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

    Matrix Membranes Kyriakos Stylianou (EPFL, SwitzerlandThe Molecular Foundry, LBNL) Spray-drying generation of MOF based composites with enhanced hydrolytic stability Time: 11:45am...

  1. March 26, 2014 in 100E Hildebrand Hall | Center for Gas SeparationsRel...

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

    and Simulation in MatrimidMOF-5 Mixed Matrix Membrane Thomas McDonald (Dept. of Chemistry, UC Berkeley) The Synthesis and Characterization of Amine-Functionalized...

  2. Material Activation Benchmark Experiments at the NuMI Hadron Absorber Hall in Fermilab

    SciTech Connect (OSTI)

    Matsumura, H.; Matsuda, N.; Kasugai, Y.; Toyoda, A.; Yashima, H.; Sekimoto, S.; Iwase, H.; Oishi, K.; Sakamoto, Y.; Nakashima, H.; Leveling, A.; Boehnlein, D.; Lauten, G.; Mokhov, N.; Vaziri, K.

    2014-06-15

    In our previous study, double and mirror symmetric activation peaks found for Al and Au arranged spatially on the back of the Hadron absorber of the NuMI beamline in Fermilab were considerably higher than those expected purely from muon-induced reactions. From material activation bench-mark experiments, we conclude that this activation is due to hadrons with energy greater than 3 GeV that had passed downstream through small gaps in the hadron absorber.

  3. Microsoft PowerPoint - Town Hall Slides 4_3_14

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

    Mentioning - Joe Franco * WIPPTREX * Accident Investigation Board Report Status * ... Training April 03, 2014 in Andrews, TX * Accident Investigation Board Report Status * Two ...

  4. Town Hall Meeting July 23th, 2012 | OpenEI Community

    Open Energy Info (EERE)

    introductions - name, company, potential icebreaker (what's your favorite analysis tool, programming language, energy sector..) Topic will be user feedback on OpenEI. Please join...

  5. Town Hall Meeting August 6th, 2012 | OpenEI Community

    Open Energy Info (EERE)

    introductions - name, company, potential icebreaker (what's your favorite analysis tool, programming language, energy sector..) Topic will be geothermal related with Geothermal...

  6. Town Hall Meeting July 9th, 2012 | OpenEI Community

    Open Energy Info (EERE)

    introductions - name, company, potential icebreaker (what's your favorite analysis tool, programming language, energy sector..) Topic focus for July 9: Discussion of utility rates...

  7. Microsoft PowerPoint - Town Hall Slides 6-05-14 rev. 2

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

    Meeting Agenda * Opening Comments - Mayor Janway * Introductions Guidelines - Ben Williams (Moderator) * Overview of Week's Activities - Joe Franco * Update on Recovery...

  8. The Honoradle':Rudolf Juiliani City'Hall New York, New York I0007

    Office of Legacy Management (LM)

    If you have any questions; please feel 'free'to call me at 301:427-1721 or'. Dr.'W. Alexander Williams 301,-427y1719 of my staff.' ' '. I ' 1' ,' Off-SiteSavannah R.iver'Program ...

  9. Microsoft PowerPoint - Town Hall Slides 7-10-14 rev 0

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

    to Phase II - July 1 * Phase I Recovery - Mitigation * Establishment of radiological buffer areas * Installation of CAM at Station B * Sealing of bypass dampers * Collection...

  10. Electron Polarimetry at Low Energies in Hall C at Jefferson Lab

    SciTech Connect (OSTI)

    Gaskell, David J.

    2013-11-01

    Although the majority of Jefferson Lab experiments require multi-GeV electron beams, there have been a few opportunities to make electron beam polarization measurements at rather low energies. This proceedings will discuss some of the practical difficulties encountered in performing electron polarimetry via Mo/ller scattering at energies on the order of a few hundred MeV. Prospects for Compton polarimetry at very low energies will also be discussed. While Mo/ller scattering is likely the preferred method for electron polarimetry at energies below 500 MeV, there are certain aspects of the polarimeter and experiment design that must be carefully considered.

  11. Berry phase mechanism of the anomalous Hall effect in a disordered...

    Office of Scientific and Technical Information (OSTI)

    The recent discovery of quantized AHE in magnetically doped topological insulators - essentially a Berry phase effect - provides strong additional motivation to undertake more ...

  12. WIPP Employee Inducted Into Mine Rescue Hall of Fame - WIPP Teams...

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

    ... Not only does Gary care deeply about his fellow employees, but he also cares about the safety of every man and woman who puts on a miner's lamp and spends their day working in ...

  13. Disorder Matters in the 5/2 Fractional Quantum Hall Effect (invited...

    Office of Scientific and Technical Information (OSTI)

    unpolarized ground state: A aVn-pn-F electron density samples well width (nm) density (1011 cm-2) mobility (106V s) lB at v52 (nm) WIb A 65 0.41 10 31.1 2.1 B 60 0.5 10 28.2 ...

  14. OpenEI Town Hall Meeting #4 | OpenEI Community

    Open Energy Info (EERE)

    You must login in order to post into this group. Latest blog post comments Mike o spectacular dataset Posted: 9 Aug 2015 - 14:46 by: Mike o Calum Residential idf Files Posted:...

  15. Competing Quantum Hall Phases in the Second Landau Level in Low...

    Office of Scientific and Technical Information (OSTI)

    Number: AC04-94AL85000 Resource Type: Journal Article Resource Relation: Journal Name: Physical Review Letters; Related Information: Proposed for publication in Physical Review...

  16. Performance Validation of Refrigeration Recovery for Experimental Hall High Target Loads

    SciTech Connect (OSTI)

    Errol Yuksek, Venkatarao, Ganni,Robert Norton, Peter Knudsen

    2012-07-01

    The Qweak experiment at Jefferson Lab (JLab) is a 3000 W hydrogen target scheduled to run until the planned shutdown in the spring of 2012 for the 12 GeV installation. As detailed in previous proceedings, support of this target's cryogenic load was made possible by incorporating modifications to the End Station Refrigerator (ESR) to recover the refrigeration supplied by the Central Helium Liquefier (CHL). Testing and commissioning for these modifications was performed in January and February 2010 demonstrating that the performance met or exceeded projected expectations. In this paper, we present the analysis of the test results in regards to the actual loads capable of being supported and the process boundaries encountered, as well as a discussion of the commissioning results for the cryogenic support of the Qweak target.

  17. Quantum anomalous Hall effect in single-layer and bilayer graphene...

    Office of Scientific and Technical Information (OSTI)

    B Additional Journal Information: Journal Volume: 83; Journal Issue: 15; Journal ID: ISSN 1098-0121 Publisher: American Physical Society Sponsoring Org: USDOE Country of...

  18. Inverse spin Hall effect in Pt/(Ga,Mn)As (Journal Article) |...

    Office of Scientific and Technical Information (OSTI)

    H. ; Matsukura, F., E-mail: f-matsu@wpi-aimr.tohoku.ac.jp 1 ; WPI-Advanced Institute for Materials Research 4 ; Center for Spintronics Integrated Systems, Tohoku University, ...

  19. Former Herring-Hall-Marvin Safe Company Site in Hbmilton, Ohio

    Office of Legacy Management (LM)

    ... state environmental and land-use requirements to the ... Requirements included properly identifying hazardous wastes, ... 195Os, HHMS, machined natural (not depleted or enriched) ...

  20. Building America Top Innovations Hall of Fame Profile … Advanced Framing Systems and Packages

    Energy Savers [EERE]

    studies involving thousands of homes have documented significant material, labor, and energy savings when production builders implement advanced framing techniques. Advanced framing can reduce the number of studs in the walls by up to one-third, reducing the cost of materials. and reducing the cost of labor in terms of the time it takes to handle, cut, install, drill, and attach to studs. Actual savings have exceeded $1,000 per home. Studies show the resulting improvement in thermal performance

  1. Building America Top Innovations Hall of Fame Profile … EEBA Builders Guides

    Energy Savers [EERE]

    a reference widely used throughout the housing industry, the EEBA Builder's Guides have been uniquely transformational, disseminating building science best practices. Moreover, the influence of the guides extends beyond the publications themselves with content continually influencing building science presentations, training, courses, and journal articles all over the United States and Canada. The U.S. Department of Energy's Building America program sponsored the development of a series of

  2. Building America Top Innovations Hall of Fame Profile … High-R Walls

    Energy Savers [EERE]

    require walls that cost-effectively control both thermal and moisture flow. Building America research results have provided proven high-R wall options for builders across the country. Building America's research teams have conducted modeling analysis as well as field studies of several different wall assemblies to identify effective "whole- wall" R-values that take into account thermal bridging of framing members. Researchers have also investigated critical moisture potential and

  3. Building America Top Innovations Hall of Fame Profile … National Residential Efficiency Measures Database

    Energy Savers [EERE]

    Robust cost data for energy-efficiency measures provide an essential framework for transforming the housing industry to high-performance homes. These data allow for effective optimization capabilities to guide builders, researchers, HERS raters, contractors, and designers. Researchers at the U.S. Department of Energy (DOE)'s National Renewable Energy Laboratory (NREL) have developed a public database that characterizes the performance and costs of common residential energy-efficiency measures.

  4. Building America Top Innovations Hall of Fame Profile … Unvented, Conditioned Crawlspaces

    Energy Savers [EERE]

    have found that in humid parts of the United States, closed, conditioned crawlspaces perform better than vented crawlspaces, reducing moisture problems and increasing energy efficiency. Building America research on unvented crawlspaces has demonstrated 15% to 18% less energy consumption for heating and cooling while reducing humidity over 20%. These results have substantially influenced changes in the 2009 and 2012 versions of the International Residential Code (R408.3) allowing unvented,

  5. Building America Top Innovations Hall of Fame Profile … Vapor Retarder Classification

    Energy Savers [EERE]

    6 the IRC has permitted Class III vapor retarders like latex paint (see list above) in all climate zones under certain conditions thanks to research by Building America teams. Air-tight and well-insulated homes have little or no tolerance for drying if they get wet; moisture control is critical. That's why Building America research establishing vapor retarder classifications and their appropriate applications has been instrumental in the market transformation to high-performance homes. As

  6. Microsoft PowerPoint - SRSCRO Public Town Hall Mtg - SRS Missions...

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

    This image cannot currently be displayed. Savannah River Site Missions, Accomplishments and ... * Ameresco (Biomass Cogeneration Plant) * WSI-SRS (Security) * Shaw AREVA: - ...

  7. Microsoft PowerPoint - Town Hall Slides 5-15-14 rev.0

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

    stacks * Visual evidence revealed melted plastic and rubber on waste containers and drums * Experts are reviewing visuals to get a better understanding of the cause of the...

  8. Microsoft PowerPoint - Town Hall Slides 5-29-14

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

    drum * The drum was confirmed as coming from Los Alamos * Other potentially damaged drums found to be intact Event Investigation Continues - May 28 Entry * Closed the bulkhead...

  9. Non-abelian fractional quantum hall effect for fault-resistant...

    Office of Scientific and Technical Information (OSTI)

    Authors: Pan, Wei ; Thalakulam, Madhu ; Shi, Xiaoyan ; Crawford, Matthew ; Nielsen, Erik ; Cederberg, Jeffrey George Publication Date: 2013-10-01 OSTI Identifier: 1121903 Report ...

  10. Spin pumping and inverse spin Hall effects-Insights for future...

    Office of Scientific and Technical Information (OSTI)

    in Ir and W using the conventional bilayer structures and discuss the self-induced voltage in a single layer of ferromagnetic permalloy. Finally, we extend our discussions to...

  11. Microsoft PowerPoint - Town_Hall_Slides_3_5_15_Final

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

    and WIPP activities - Dana Bryson * Recovery Status - Tammy Reynolds * Radiological Contamination - Jim Blankenhorn * Audience Questions * In house * Internet * Closing Comments -...

  12. September 23, 2015 in 100E Hildebrand Hall | Center for Gas

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

    0 September 2010 September 29, 2010 In this issue: Secretary Chu Leads U.S. Delegation to IAEA General Conference Bacchus Subcritical Experiment Conducted at NNSS Y-12 Removes Nuclear Materials, Reducing Site's Nuclear Footprint Y-12 Transformation Continues With Potable Water Project, New Towers NNSA Breaks Ground on New Facility in Kansas City Sandia Cutting Tool Disables Improvised Explosive Devices NNSA Reaches Nonproliferation Milestone New Pantex System Saves Time, Money NNSA Military

  13. Spin Hall magnetoresistance in CoFe2O4/Pt films (Journal Article...

    Office of Scientific and Technical Information (OSTI)

    Authors: Wu, Hao 1 ; Qintong, Zhang 1 ; Caihua, Wan 1 ; Ali, Syed Shahbaz 1 ; Yuan, Zhonghui 1 ; You, Lu 2 ; Wang, Junling 2 ; Choi, Yongseong 3 ; Han, Xiufeng 1 ...

  14. Microsoft PowerPoint - WIPP Town Hall Meeting 9-3-15

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

    Bryson * Radiation presentation - Walter MacMillan * Audience questions * In house * Internet * Closing comments - Dana Bryson www.energy.govEM 3 Update on CBFO and WIPP...

  15. 06.27.14 SRS Retirees Town Hall Meeting Q/A Period Summary Page...

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

    our best to get it above. We have looked at way funds were invested. It's been a volatile stock market, with major losses in last 15 years. Having a diverse portfolio, we are more...

  16. Cathode for a hall-heroult type electrolytic cell for producing aluminum

    DOE Patents [OSTI]

    Brown, Craig W.

    2004-04-13

    A method of producing aluminum from alumina in an electrolytic cell including using a cathode comprised of a base material having low electrical conductivity and wettable with molten aluminum to form a reaction layer having a high electrical conductivity on said base layer and a cathode bar extending from said reaction layer through said base material to conduct electrical current from said reaction layer.

  17. Microsoft PowerPoint - Town_Hall_Slides_8_6_15

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

    415 - at 6 p.m. the WIPP Emergency Operations Center (EOC) was activated when Radiation Control Technicians detected radioactive contamination at the Station B sampler location...

  18. WIPP | Waste Isolation Pilot Plant

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

    Town Hall Meetings April 7, 2016 Town Hall Meeting Presentation Slides January 7, 2016 Town Hall Meeting Presentation Slides October 29, 2015 Town Hall Meeting Presentation Slides September 3, 2015 Town Hall Meeting Presentation Slides August 6, 2015 Town Hall Meeting Presentation Slides July 9, 2015 Town Hall Meeting Presentation Slides June 4, 2015 Town Hall Meeting Presentation Slides May 7, 2015 Town Hall Meeting Presentation Slides April 16, 2015 Town Hall Meeting Presentation Slides April

  19. News | Princeton Plasma Physics Lab

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

    West Windsor-Plainsboro South High School & William Annin Middle School win N.J. Regional Science Bowl at PPPL Top science whizzes will go to national contest in Washington, D.C. Click on an image below to view the high resolution image. Then right click on the image and select "Save Image" or "Save Image As..." The West Windsor-Plainsboro South High School team buzzes in an answer as they compete against Millburn High School in Round 12 of the New Jersey Regional Science

  20. Mr. R. B. Bell, Jr. Combustion Engineering, Inc. Post Office Box 500

    Office of Legacy Management (LM)

    g@ *tq 47 e "Y q$ . -0 t: 2 ~ i' ,; B 0 e %d&$ Department of Energy Washington, DC 20585 Mr. R. B. Bell, Jr. Combustion Engineering, Inc. Post Office Box 500 Windsor, Connecticut 06095-0500 Dear Mr. Bell: I have received two copies of the access agreement for the radiological survey of the Combustion Engineering Property at 1000 Prospect Hill Road in Windsor. I have signed the agreements on behalf of the U.S. Department of Energy, and I am returning one signed original copy to you, By

  1. DOE Reactor Site Returns To Green Field Conditions | National Nuclear

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

    Security Administration DOE Reactor Site Returns To Green Field Conditions October 18, 2006 First Unrestricted Release Of A Nuclear Power Site On Wednesday, October 18, 2006, the U.S. Naval Nuclear Propulsion Program commemorates the first-ever chemical and radiological release of a U.S. nuclear power reactor site for unrestricted future use - the Department of Energy S1C Prototype Reactor Site in Windsor, Connecticut. The 10:30 a.m. ceremony, held at the DOE Windsor Site off Prospect Hill

  2. Experiments with the High Resolution Kaon Spectrometer at Jlab Hall C and the New Spectroscopy of ^12_Lambda B Hypernuclei

    SciTech Connect (OSTI)

    Tang, Liguang; Chen, Chunhua; Gogami, Toshiyuki; Kawama, Daisuke; Han, Yuncheng; Yuan, Lulin; Matsumura, Akihiko; Okayasu, Yuichi; Seva, Tomislav; Rodriguez, Victor; Baturin, Pavlo; Acha Quimper, Armando; Achenbach, Carsten; Ahmidouch, Abdellah; Albayrak, Ibrahim; Androic, Darko; Asaturyan, Arshak; Asaturyan, Razmik; Ates, Ozgur; Badui, Rafael; Baker, Oliver; Benmokhtar, Fatiha; Boeglin, Werner; Bono, Jason; Bosted, Peter; Brash, Edward; Carter, Philip; Carlini, Roger; Chiba, Atsushi; Christy, Michael; Cole, Leon; Dalton, Mark; Danagoulian, Samuel; Daniel, Aji; De Leo, Raffaele; Dharmawardane, Kahanawita; Doi, Daisuke; Egiyan, Kim; Elaasar, Mostafa; Ent, Rolf; Fenker, Howard; Fujii, Yu; Furic, Miroslav; Gabrielyan, Marianna; Gan, Liping; Garibaldi, Franco; Gaskell, David; Gasparian, Ashot; Gibson, Edward; Gueye, Paul; Hashimoto, Osamu; Honda, D.; Horn, Tanja; Hu, Bitao; Hungerford, Ed; Jayalath, Chandana; Jones, Mark; Johnston, Kathleen; Kalantarians, Narbe; Kanda, Hiroki; Kaneta, M.; Kato, F.; Kato, Seigo; Kawai, Masaharu; Keppel, Cynthia; Khanal, Hari; Kohl, M.; Kramer, Laird; Lan, Kejian; Li, Ya; Habarakada Liyanage, Anusha; Luo, Wei; Mack, David; Maeda, Kazushige; Malace, Simona; Margaryan, Amur; Marikyan, Gagik; Markowitz, Pete; Maruta, Tomofumi; Maruyama, Nayuta; Maxwell, Victor; Millener, David; Miyoshi, Toshinobu; Mkrtchyan, Arthur; Mkrtchyan, Hamlet; Motoba, Toshio; Nagao, Sho; Nakamura, Satoshi; Narayan, Amrendra; Neville, Casey; Niculescu, Gabriel; Niculescu, Maria; Nunez, Angel; Nuruzzaman, nfn; Nomura, Hiroshi; Nonaka, Kenichi; Ohtani, Atsushi; Oyamada, Masamichi; Perez, Naipy; Petkovic, Tomislav; Pochodzalla, J.; Qiu, Xiyu; Randeniya, Kapugodage; Raue, Brian; Reinhold, Joerg; Rivera, R.; Roche, Julie; Samanta, Chhanda; Sato, Yoshinori; Sawatzky, Bradley; Segbefia, Edwin; Schott, Diane; Shichijo, Ayako; Simicevic, Neven; Smith, Gregory; Song, Yushou; Sumihama, Mizuki; Tadevosyan, Vardan; Takahashi, Toshiyuki; Taniya, Naotaka; Tsukada, Kyo; Tvaskis, Vladas; Veilleux, Micah; Vulcan, William; Wells, Steven; Wesselmann, Frank; Wood, Stephen; Yamamoto, Taku; Yan, Chen; Ye, Z.; Yokota, Kosuke; Zhamkochyan, Simon; Zhu, Lingyan

    2014-09-01

    Since the pioneering experiment, E89-009 studying hypernuclear spectroscopy using the $(e,e^{\\prime}K^+)$ reaction was completed, two additional experiments, E01-011 and E05-115, were performed at Jefferson Lab. These later experiments used a modified experimental design, the "Tilt Method", to dramatically suppress the large electromagnetic background, and allowed for a substantial increase in luminosity. Additionally, a new kaon spectrometer, HKS (E01-011), a new electron spectrometer, HES, and a new splitting magnet were added to produce precision, high-resolution hypernuclear spectroscopy. These two experiments, E01-011 and E05-115, resulted in two new data sets, producing sub-MeV energy resolution in the spectra of ${}^{7}_{\\Lambda}\\text{He}$, ${}^{12}_{\\Lambda}\\text{B}$ and ${}^{28}_{\\Lambda} \\text{Al}$ and ${}^{7}_{\\Lambda}\\text{He}$, ${}^{10}_{\\Lambda}\\text{Be}$, ${}^{12}_{\\Lambda}\\text{B}$ and ${}^{52}_{\\Lambda}\\text{V}$. All three experiments obtained a ${}^{12}_{\\Lambda}\\text{B}$, spectrum, which is the most characteristic $p$-shell hypernucleus and is commonly used for calibration. Independent analyses of these different experiments demonstrate excellent consistency and provide the clearest level structure to date of this hypernucleus as produced by the $(e,e^{\\prime}K^+)$ reaction. This paper presents details of these experiments, and the extraction and analysis of the observed ${}^{12}_{\\Lambda}\\text{B}$ spectrum.

  3. Building America Top Innovations Hall of Fame Profile … Thermal Bypass Air Barriers in the 2009 International Energy Conservation Code

    Energy Savers [EERE]

    effectively demonstrated the importance of thermal bypass air barriers, which led to their inclusion in ENERGY STAR for Homes Version 3 specifications in 2006 and then to inclusion in the 2009 IECC. This is a great example of effective research driving a complete market transformation process for a critical high-performance home innovation. Air sealing of the home's thermal enclosure has been required by the energy code for many years. However, in years past, the provisions were somewhat vague

  4. Building America Top Innovations Hall of Fame Profile … Thermal Bypass Air Barriers in the 2009 International Energy Conservation Code

    Energy Savers [EERE]

    effectively demonstrated the importance of thermal bypass air barriers, which led to their inclusion in ENERGY STAR for Homes Version 2 specifications in 2006 and then to inclusion in the 2009 IECC. This is a great example of effective research driving a complete market transformation process for a critical high-performance home innovation. Air sealing of the home's thermal enclosure has been required by the energy code for many years. However, in years past, the provisions were somewhat vague

  5. CX-003380: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Geothermal Incentive Program -McCudaCX(s) Applied: A9, A11, B2.2, B5.1Date: 08/12/2010Location(s): East Windsor, ConnecticutOffice(s): Energy Efficiency and Renewable Energy, National Energy Technology Laboratory

  6. EWIS European wind integration study (Smart Grid Project) (United...

    Open Energy Info (EERE)

    United Kingdom) Jump to: navigation, search Project Name EWIS European wind integration study Country United Kingdom Coordinates 55.378052, -3.435973 Loading map......

  7. UK - NETL Cooperation | Open Energy Information

    Open Energy Info (EERE)

    Cooperation AgencyCompany Organization National Energy Technology Laboratory Partner United Kingdom Sector Energy Website http:www.netl.doe.govtechno Country United Kingdom...

  8. Wavegen Ltd | Open Energy Information

    Open Energy Info (EERE)

    navigation, search Name: Wavegen Ltd Address: 13a Harbour Rd Place: Inverness, Scotland, United Kingdom Zip: IV1 1SY Region: United Kingdom Sector: Marine and Hydrokinetic...

  9. AFTER A Framework for electrical power sysTems vulnerability...

    Open Energy Info (EERE)

    United Kingdom) Jump to: navigation, search Project Name AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration Country United Kingdom...

  10. Modelling and Development of a High Performance Milling Process...

    Office of Scientific and Technical Information (OSTI)

    AMRC - Advanced Manufacturing Research Centre with Boeing, University of Sheffield (United Kingdom) Technicut Limited, 609-617 Attercliffe Road, Sheffield S93RD UK (United Kingdom) ...

  11. Building America Top Innovations Hall of Fame Profile … Building Americas Top Innovations Propel the Home Building Industry toward Higher Performance

    Energy Savers [EERE]

    Budget Atomization Budget Atomization Howard Dickenson, Deputy Associate Administrator for Acquisition and Project Management presented on Budget Atomization from the NNSA perspective. Howard presented an overview of the NNSA budget structure and an example of LANL controls. Chris Johns, Director of the Budget Office, DOE Office of the CFO presented on Budget Atomization from the DOE perspective. Chris provided an overview of funding, provided examples, and demonstrated the effect on labs/sites.

  12. Building America Top Innovations Hall of Fame Profile – Building America’s Top Innovations Propel the Home Building Industry toward Higher Performance

    Broader source: Energy.gov [DOE]

    This Building America Innovations profile describes the concept for the U.S. Department of Energy Building America’s Top Innovations.

  13. E00-110 experiment at Jefferson Lab Hall A: Deeply virtual Compton scattering off the proton at 6 GeV

    SciTech Connect (OSTI)

    Defurne, M.; Amaryan, M.; Aniol, K. A.; Beaumel, M.; Benaoum, H.; Bertin, P.; Brossard, M.; Camsonne, A.; Chen, J. -P.; Chudakov, E.; Craver, B.; Cusanno, F.; de Jager, C. W.; Deur, A.; Feuerbach, R.; Ferdi, C.; Fieschi, J. -M.; Frullani, S.; Fuchey, E.; Garçon, M.; Garibaldi, F.; Gayou, O.; Gavalian, G.; Gilman, R.; Gomez, J.; Gueye, P.; Guichon, P. A. M.; Guillon, B.; Hansen, O.; Hayes, D.; Higinbotham, D.; Holmstrom, T.; Hyde, C. E.; Ibrahim, H.; Igarashi, R.; Jiang, X.; Jo, H. S.; Kaufman, L. J.; Kelleher, A.; Keppel, C.; Kolarkar, A.; Kuchina, E.; Kumbartzki, G.; Laveissière, G.; LeRose, J. J.; Lindgren, R.; Liyanage, N.; Lu, H. -J.; Margaziotis, D. J.; Mazouz, M.; Meziani, Z. -E.; McCormick, K.; Michaels, R.; Michel, B.; Moffit, B.; Monaghan, P.; Muñoz Camacho, C.; Nanda, S.; Nelyubin, V.; Paremuzyan, R.; Potokar, M.; Qiang, Y.; Ransome, R. D.; Réal, J. -S.; Reitz, B.; Roblin, Y.; Roche, J.; Sabatié, F.; Saha, A.; Sirca, S.; Slifer, K.; Solvignon, P.; Subedi, R.; Sulkosky, V.; Ulmer, P. E.; Voutier, E.; Wang, K.; Weinstein, L. B.; Wojtsekhowski, B.; Zheng, X.; Zhu, L.

    2015-11-03

    We present final results on the photon electroproduction ($\\vec{e}p\\rightarrow ep\\gamma$) cross section in the deeply virtual Compton scattering (DVCS) regime and the valence quark region from Jefferson Lab experiment E00-110. Results from an analysis of a subset of these data were published before, but the analysis has been improved which is described here at length, together with details on the experimental setup. Furthermore, additional data have been analyzed resulting in photon electroproduction cross sections at new kinematic settings, for a total of 588 experimental bins. Results of the $Q^2$- and $x_B$-dependences of both the helicity-dependent and helicity-independent cross sections are discussed. The $Q^2$-dependence illustrates the dominance of the twist-2 handbag amplitude in the kinematics of the experiment, as previously noted. Thanks to the excellent accuracy of this high luminosity experiment, it becomes clear that the unpolarized cross section shows a significant deviation from the Bethe-Heitler process in our kinematics, compatible with a large contribution from the leading twist-2 DVCS$^2$ term to the photon electroproduction cross section. The necessity to include higher-twist corrections in order to fully reproduce the shape of the data is also discussed. The DVCS cross sections in this study represent the final set of experimental results from E00-110, superseding the previous publication.

  14. E00-110 experiment at Jefferson Lab Hall A: Deeply virtual Compton scattering off the proton at 6 GeV

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

    Defurne, M.; Amaryan, M.; Aniol, K. A.; Beaumel, M.; Benaoum, H.; Bertin, P.; Brossard, M.; Camsonne, A.; Chen, J. -P.; Chudakov, E.; et al

    2015-11-03

    We present final results on the photon electroproduction (more » $$\\vec{e}p\\rightarrow ep\\gamma$$) cross section in the deeply virtual Compton scattering (DVCS) regime and the valence quark region from Jefferson Lab experiment E00-110. Results from an analysis of a subset of these data were published before, but the analysis has been improved which is described here at length, together with details on the experimental setup. Furthermore, additional data have been analyzed resulting in photon electroproduction cross sections at new kinematic settings, for a total of 588 experimental bins. Results of the $Q^2$- and $x_B$-dependences of both the helicity-dependent and helicity-independent cross sections are discussed. The $Q^2$-dependence illustrates the dominance of the twist-2 handbag amplitude in the kinematics of the experiment, as previously noted. Thanks to the excellent accuracy of this high luminosity experiment, it becomes clear that the unpolarized cross section shows a significant deviation from the Bethe-Heitler process in our kinematics, compatible with a large contribution from the leading twist-2 DVCS$^2$ term to the photon electroproduction cross section. The necessity to include higher-twist corrections in order to fully reproduce the shape of the data is also discussed. The DVCS cross sections in this study represent the final set of experimental results from E00-110, superseding the previous publication.« less

  15. Monte Carlo simulation of a Bonner sphere spectrometer for application to the determination of neutron field in the Experimental Advanced Superconducting Tokamak experimental hall

    SciTech Connect (OSTI)

    Hu, Z. M.; Xie, X. F.; Chen, Z. J.; Peng, X. Y.; Du, T. F.; Cui, Z. Q.; Ge, L. J.; Li, T.; Yuan, X.; Zhang, X.; Li, X. Q.; Zhang, G. H.; Chen, J. X.; Fan, T. S.; Hu, L. Q.; Zhong, G. Q.; Lin, S. Y.; Wan, B. N.; Gorini, G.

    2014-11-15

    To assess the neutron energy spectra and the neutron dose for different positions around the Experimental Advanced Superconducting Tokamak (EAST) device, a Bonner Sphere Spectrometer (BSS) was developed at Peking University, with totally nine polyethylene spheres and a SP9 {sup 3}He counter. The response functions of the BSS were calculated by the Monte Carlo codes MCNP and GEANT4 with dedicated models, and good agreement was found between these two codes. A feasibility study was carried out with a simulated neutron energy spectrum around EAST, and the simulated “experimental” result of each sphere was obtained by calculating the response with MCNP, which used the simulated neutron energy spectrum as the input spectrum. With the deconvolution of the “experimental” measurement, the neutron energy spectrum was retrieved and compared with the preset one. Good consistence was found which offers confidence for the application of the BSS system for dose and spectrum measurements around a fusion device.

  16. AP-PO-0002-001.PDF

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

    AP-PO-0002-001.doc Experimental Hall Date: 20010109 Experimental Hall Policy: The following policies are to be followed for access to the Experimental Hall: 1. Smoking is not...

  17. Public Assembly | Open Energy Information

    Open Energy Info (EERE)

    whether in private or non-private meeting halls. Sub Categories social or meeting (e.g. community center, lodge, meeting hall, convention center, senior center); recreation...

  18. DOE - Office of Legacy Management -- Berkeley CA Site - CA 03

    Office of Legacy Management (LM)

    FUSRAP Considered Sites Berkeley, CA Alternate Name(s): University of California Gilman Hall, University of California CA.03-1 Location: Gilman Hall, University of California, ...

  19. Enron Documents

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

    ... HAGGERTY, ROBERT J. HALL, J. DIANA HALLADAY, ROBERTA L. HAMILTON, CITY OF HARKAWAY, ... HALL-HOUSTON OIL COMPANY HALLADAY, ROBERT L. HAMILTON, CITY OF HAMMERSTEIN, ANNE L. HANEY, ...

  20. AmesLab-ISUMap2

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

    GILMAN HALL OFFICE & LAB BLDG PHYSICS HALL WILHELM HALL FRILEY HALL HELSER HALL UNION DRIVE BISSELL ROAD U N I O N D R I V E BEYER COURT UNIO N DRIVE OSBORN DRIVE COMMUNICATIONS BUILDING MOLECULAR BIOLOGY BUILDING METALS DEVELOPMENT BUILDING GENETICS LAB INSECTARY SCIENCE HALL II SCIENCE HALL LAGOMARCINO HALL M E C H . M A IN T . B U IL D IN G P R IN T IN G A N D P U B L IC A T IO N S LIBRARY STORAGE FACILITY ADMINISTRATIVE SERVICES BLDG WANDA DALEY DRIVE STANGE ROAD HORSE BARN RUMINANT