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Sample records for thomas jefferson high

  1. Thomas Jefferson High School takes regional Science Bowl competition...

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

    Science Bowl Results: Thomas Jefferson High School for Science and Technology The Thomas Jefferson High School for Science and Technology Science Bowl 2005 team includes (front...

  2. Thomas Jefferson High School for Science & Technology National...

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

    Thomas Jefferson High School for Science & Technology National Science Bowl Champion Thomas Jefferson High School for Science & Technology National Science Bowl Champion May 2,...

  3. Thomas Jefferson High School for Science & Technology Wins Feb...

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

    Bowl; Warwick High Wins Math and Science Challenges fellowship The Thomas Jefferson High School for Science and Technology, Alexandria, won the Feb. 5 Virginia Regional High...

  4. Thomas Jefferson High School for Science and Technology from...

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

    day of science and math questions and answers, the winning team was Thomas Jefferson High School for Science and Technology from Alexandria. Team captain and high school...

  5. Thomas Jefferson High School for Science & Technology Wins...

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

    School, Richmond, Takes Second NEWPORT NEWS, Va., Feb. 27, 2010 - The Thomas Jefferson High School for Science and Technology from Alexandria beat out St. Christopher's School...

  6. Thomas Jefferson High School for Science & Technology wins...

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

    Regional Science Bowl. Winning the daylong academic competition was the Thomas Jefferson High School for Science and Technology, from Alexandria, Va. Following in second place was...

  7. Thomas Jefferson High School for Science & Technology Snaps Up...

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

    Beach Schools Take 2nd, 3rd Place High School Science Bowl 1st Place The Thomas Jefferson High School for Science and Technology team from Alexandria poses with its first-place...

  8. Thomas Jefferson High School for Science & Technology wins...

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

    at the Virginia Regional High School Science Bowl was the team from the Thomas Jefferson High School for Science and Technology from Alexandria, Va. Pictured from left to right is...

  9. Thomas Jefferson High School Wins Virginia Science Bowl for 7th...

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

    NEWPORT NEWS, Va., Feb. 20, 2008 - The Thomas Jefferson High School for Science and Technology team pummeled its competition at the Virginia Regional Science Bowl held Feb. 2 at...

  10. Thomas Jefferson: image and ideology 

    E-Print Network [OSTI]

    Wilson, Gaye N. S. B.

    2012-11-30

    This thesis explores the public image of Thomas Jefferson as recorded in his major life portraits. It consults the traditions that surrounded eighteenth-century portraiture and the history of the portrait as a means of ...

  11. Thomas Jefferson High School for Science & Technology National...

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

    Hill School, Kansas City, Mo. Santa Monica High School, Santa Monica, Calif. Smoky Hill High School, Aurora, Colo. State College Are High School, State College, Pa. Sycamore...

  12. Thomas Jefferson High School for Science & Technology Takes 2015...

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

    high school and middle school students will compete in 70 high school and 50 middle school regional Science Bowl tournaments. Students, in teams of four or five, compete in the...

  13. Independent Oversight Inspection, Thomas Jefferson National Accelerator Facility- August 2008

    Broader source: Energy.gov [DOE]

    Inspection of Environment, Safety and Health Programs at the Thomas Jefferson National Accelerator Facility

  14. 2012 Annual Planning Summary for Thomas Jefferson Site Office

    Broader source: Energy.gov [DOE]

    The ongoing and projected Environmental Assessments and Environmental Impact Statements for 2012 and 2013 within Thomas Jefferson Site Office.

  15. NOAA Ship Thomas Jefferson June 1527

    E-Print Network [OSTI]

    samples show conditions that existed in an area before any impacts from the spill have occurred. The ship and concluded its mission with sampling in the area close to the wellhead. The ship conducted acoustic in the water. Thomas Jefferson sampling to date: 51 CDT casts (510 water samples per cast) ­ water

  16. 2009 - 02 | Jefferson Lab

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

    Local firms benefit from Jefferson Lab upgrade Mon, 02092009 - 1:00pm Thomas Jefferson High School for Science & Technology Snaps Up Virginia Science Bowl Championship; Virginia...

  17. Virginia Regional High School Science Bowl | Jefferson Lab

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

    several high schools join the competition for the first time, and as the Thomas Jefferson High School for Science & Technology team, Alexandra, works to defend its six-year run as...

  18. Implementation of DOE NPH Requirements at the Thomas Jefferson National Accelerator Facility (TJNAF), a Non-Nuclear DOE Lab

    Office of Energy Efficiency and Renewable Energy (EERE)

    Implementation of DOE NPH Requirements at the Thomas Jefferson National Accelerator Facility (TJNAF), a Non-Nuclear DOE Lab David Luke, DOE, Thomas Jefferson Site Office Stephen McDuffie, DOE, Office of the Chief of Nuclear Safety

  19. 2011 - 02 | Jefferson Lab

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

    20 Science Activities Night at Jefferson Lab Tue, 02082011 - 1:00pm Thomas Jefferson High School for Science & Technology Wins Feb. 5 Virginia Science Bowl; Warwick High Wins...

  20. 2006 - 02 | Jefferson Lab

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

    Chattopadhyay Inducted into AAAS Fellowship Wed, 02152006 - 1:00pm Thomas Jefferson High School for Science &38; Technology wins the Virginia Regional Science Bowl Fri, 02...

  1. THOMAS JEFFERSON THOMAS JEFFERSON is one of a fleet of research and survey vessels used by NOAA to improve our understanding of

    E-Print Network [OSTI]

    such as petroleum, coal, steel, automobiles, grain, and containerized cargo. Line Drawing by Bob Hitz Design/16-in wire rope #12;Thomas Jefferson C-Frame · C-Frame o Type: Movable o Quantity: 1 o Drive Quantity: 2 o Type: Stockless o Weight: 3,500 lbs. · Anchor Chain o Quantity: 2 o Size and Type: 1 3/8-in

  2. Commonwealth, High-Tech Leaders Recognize 14 Jefferson Lab Staff...

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

    Commonwealth, High-Tech Leaders Recognize 14 Jefferson Lab Staff Members for Patent Work April 4, 2002 Fourteen current and former Jefferson Lab employees were recognized on April...

  3. Review of Natural Phenomena Hazards (NPH) Requirements Currently Applied to the Thomas Jefferson National Accelerator Facility (TJNAF)

    Broader source: Energy.gov [DOE]

    Review of Natural Phenomena Hazards (NPH) Requirements Currently Applied to the Thomas Jefferson National Accelerator Facility (TJNAF) By: Integrated NPH Team: David Luke, Lead, TJSO Rusty Sprouse, JSA Michael A. Epps, TJSO Richard Korynta, TJSO

  4. 2015 - 02 | Jefferson Lab

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

    February 2015 Fri, 02202015 - 9:28am Thomas Jefferson High School for Science & Technology Takes 2015 Virginia Science Bowl Tue, 02102015 - 3:45pm Three Young Scientists Earn...

  5. 2005 | Jefferson Lab

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

    Breast Cancer Thu, 03032005 - 1:00pm Virginia, Maryland teams prepare for Regional Middle School Science Bowl February 2005 Thu, 02172005 - 1:00pm Thomas Jefferson High...

  6. 2005 - 02 | Jefferson Lab

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

    February 2005 Thu, 02172005 - 2:00pm Thomas Jefferson High School takes regional Science Bowl competition at JLab for 4th year running Fri, 02042005 - 2:00pm News Media invited...

  7. Jefferson Lab Virtual Tour

    SciTech Connect (OSTI)

    None

    2013-07-13

    Take a virtual tour of the campus of Thomas Jefferson National Accelerator Facility. You can see inside our two accelerators, three experimental areas, accelerator component fabrication and testing areas, high-performance computing areas and laser labs.

  8. Jefferson Lab Virtual Tour

    ScienceCinema (OSTI)

    None

    2014-05-22

    Take a virtual tour of the campus of Thomas Jefferson National Accelerator Facility. You can see inside our two accelerators, three experimental areas, accelerator component fabrication and testing areas, high-performance computing areas and laser labs.

  9. Jefferson Lab Awards Contract for Next Cluster Computer | Jefferson...

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

    and gluons. For more information: Jefferson Lab's cluster computing efforts: http:datacenter.atouchoftech.com:9156newsreleasessupercomputing-sho... Thomas Jefferson National...

  10. Six NN High School Students Win Jefferson Lab Externships | Jefferson...

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

    finalists in the Lab's African-Americans in Science Essay Contest. Winners are Jamel P. Bacon, Menchville High School; Alandis K. Brassel, Woodside High School; Chantel Randolph,...

  11. 1996 - 05 | Jefferson Lab

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

    the Fundamental Structure of Matter (Release) Fri, 05241996 - 12:00am Secretary O'Leary Dedicates Thomas Jefferson National Accelerator Facility (Release) Wed, 05081996 -...

  12. Lab Hosts 22 teams for Virginia Science Bowl, Feb. 7; Thomas...

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

    at the Virginia Regional Science Bowl on Feb. 7 went to the team from Thomas Jefferson High School for Science and Technology, Alexandria, Virginia. Team members include (left...

  13. 2002 | Jefferson Lab

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

    Jefferson Lab Physicist Wins American Physical Society Award Thu, 04042002 - 1:00pm Commonwealth, High-Tech Leaders Recognize 14 Jefferson Lab Staff Members for Patent Work...

  14. 2002 - 04 | Jefferson Lab

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

    Jefferson Lab Physicist Wins American Physical Society Award Thu, 04042002 - 1:00pm Commonwealth, High-Tech Leaders Recognize 14 Jefferson Lab Staff Members for Patent Work...

  15. DOE's Jefferson Lab Receives Approval To Start Construction of...

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

    DOE's Jefferson Lab Receives Approval To Start Construction of 310 Million Upgrade NEWPORT NEWS, Va., Sept. 15, 2008 - The U.S. Department of Energy's Thomas Jefferson National...

  16. Thomas Jefferson High School for Science & Technology National Science

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OF APPLICABLEStatutory Authority J-I-12 GeVAuditTheChallenge |JulyThis

  17. Thomas Jefferson National Accelerator Facility | U.S. DOE Office of Science

    Office of Science (SC) Website

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe23-24, 2011Science (SC) RedefiningSign(SC) Thomas

  18. Thomas Jefferson National Accelerator Facility | U.S. DOE Office of Science

    Office of Science (SC) Website

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe23-24, 2011Science (SC) RedefiningSign(SC) Thomas(SC)

  19. Thomas Jefferson National Accelerator Facility | U.S. DOE Office of Science

    Office of Science (SC) Website

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe23-24, 2011Science (SC) RedefiningSign(SC)(SC) Thomas

  20. Thomas Jefferson Site Office Homepage | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe 26thI D- 6 0GrantsThe Life of Enrico Fermi The EnricoHome Thomas

  1. Thomas Jefferson Site Office CX Determinations | U.S. DOE Office of Science

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S.Week DayDr. JeffreyThermalš,, 20106,5,8,30,(SC) Thomas

  2. 2004 - 12 | Jefferson Lab

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

    December 2004 Fri, 12032004 - 2:00pm Anthony Thomas accepts position of Chief Scientist and Theory Group Leader at Jefferson Lab Fri, 12032004 - 2:00pm Zooming in on a proton...

  3. Media Advisory - Virginia Regional High School Science Bowl ...

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

    Hampton, Virginia Beach and Chesapeake compete. Will another team unseat Thomas Jefferson High School for Science & Technology - the long-running winner of Virginia Regional High...

  4. Jefferson Lab's Education web site hits new high-usage record...

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

    web site hits new high-usage record during 2003 SOL season April 2, 2003 Jefferson Lab's Science Education web site is hitting new highs in usage - on a daily basis. Just yesterday...

  5. Jefferson Lab's Education Web Site Hits New High-Usage Record...

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

    Web Site Hits New High-Usage Record April 22, 2002 Jefferson Lab's Science Education web site hit a new high in usage yesterday. In a 24-hour-period nearly 125,000 pages were...

  6. Jefferson Lab Leadership Council - Dr. Andrew Hutton

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

    GEORGE NEIL Associate Director for FEL Division George Neil is Senior Team Lead for the LCLS-II Project at the Thomas Jefferson National Accelerator Facility (Jefferson Lab), a...

  7. Media Advisory - Virginia Regional High School Science Bowl ...

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

    Newport News, join the competition for the first time, and as the Thomas Jefferson High School for Science & Technology team, Alexandra, defends its decade-long run as...

  8. Thomas Jefferson's Birthday

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired Solar FuelTechnologyTel:February 25, 2015 |7 D I S C L A IThomas

  9. IT Division | Jefferson Lab

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

    Information Technology At Jefferson Lab High-performance computing is essential to the success of the experimental program at Jefferson Lab. A D D I T I O N A L L I N K S: IT Home...

  10. 2001 - 03 | Jefferson Lab

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

    March 2001 Wed, 03212001 - 2:00pm Six NN High School Students Win Jefferson Lab Externships Wed, 03212001 - 2:00pm Jones O. & Associates of Hampton wins Jefferson Lab's...

  11. LANDSCAPE MASTER PLAN At the University of Virginia, Thomas Jefferson created an icon of American campus planning,

    E-Print Network [OSTI]

    Nagy, Eric Sándor

    lifelong study of architectural and landscape design. The power of this special place derives from the seamless integration of architecture into the landscape. Jefferson' s crowning achievement, then, is a legacy that urges special stewardship for the landscape so central to his utopian vision. Since the time

  12. Electroweak Physics at Jefferson Lab

    SciTech Connect (OSTI)

    R. D. McKeown

    2012-03-01

    The Continuous Electron Beam Accelerator Facility (CEBAF) at the Thomas Jefferson National Accelerator Facility provides CW electron beams with high intensity, remarkable stability, and a high degree of polarization. These capabilities offer new and unique opportunities to search for novel particles and forces that would require extension of the standard model. CEBAF is presently undergoing an upgrade that includes doubling the energy of the electron beam to 12 GeV and enhancements to the experimental equipment. This upgraded facility will provide increased capability to address new physics beyond the standard model.

  13. Jefferson West High School Wind Project | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View NewGuam:onItron (California) JumpJefferson Utilities Jump to:West

  14. Jefferson Lab Hosts High School Science Bowl on Feb. 27 | Jefferson...

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

    Lab on Saturday, Feb. 27, to compete in the Virginia Regional High School Science Bowl. Teams from 20 high schools from across the region are registered for this year's academic...

  15. Jefferson Lab Hosts High School Science Bowl on Feb. 4 | Jefferson...

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

    Lab on Saturday, Feb. 4, to compete in the Virginia Regional High School Science Bowl. Teams from 22 high schools from across the region are registered for this year's academic...

  16. Jefferson Lab Hosts High School Science Bowl on Feb. 5 | Jefferson...

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

    Lab on Saturday, Feb. 5, to compete in the Virginia Regional High School Science Bowl. Teams from 23 high schools from across the region are registered for this year's academic...

  17. Three Young Scientists Earn DOE Graduate Research Grants at Jefferson...

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

    accomplishments have earned three young scientists funds to conduct part of their thesis research at the U.S. Department of Energy's Thomas Jefferson National Accelerator...

  18. Device Zeroes in on Small Breast Tumors | Jefferson Lab

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

    Thomas Jefferson National Accelerator Facility, West Virginia University School of Medicine and the University of Maryland School of Medicine will be published in the journal...

  19. High Speed Rail in America Thomas Ducharme, Matt Schena,

    E-Print Network [OSTI]

    Nagurney, Anna

    High Speed Rail in America Thomas Ducharme, Matt Schena, and Dan Bellis #12;The US Current Situation of High Speed Rail · The US only has one high speed rail o Acela Which runs from Boston to Washington D.C. · A renewed interest in High Speed Rail Due to increased congestion Desire for cheaper

  20. Jefferson Lab hosts 19 schools for Virginia Regional High School...

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

    Feb. 10, to compete in the Virginia Regional High School Science Bowl. Nineteen teams, representing high schools from across the region are participating in this year's...

  1. High-intensity positron microprobe at Jefferson Lab

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

    Golge, Serkan; Vlahovic, Branislav; Wojtsekhowski, Bogdan B.

    2014-06-19

    We present a conceptual design for a novel continuous wave electron-linac based high-intensity slow-positron production source with a projected intensity on the order of 1010 e+/s. Reaching this intensity in our design relies on the transport of positrons (T+ below 600 keV) from the electron-positron pair production converter target to a low-radiation and low-temperature area for moderation in a high-efficiency cryogenic rare gas moderator, solid Ne. The performance of the integrated beamline has been verified through computational studies. The computational results include Monte Carlo calculations of the optimized electron/positron beam energies, converter target thickness, synchronized raster system, transport of themore »beam from the converter target to the moderator, extraction of the beam from the channel, and moderation efficiency calculations. For the extraction of positrons from the magnetic channel a magnetic field terminator plug prototype has been built and experimental data on the effectiveness of this prototype are presented. The dissipation of the heat away from the converter target and radiation protection measures are also discussed.« less

  2. High-intensity positron microprobe at Jefferson Lab

    SciTech Connect (OSTI)

    Golge, Serkan; Vlahovic, Branislav; Wojtsekhowski, Bogdan B.

    2014-06-19

    We present a conceptual design for a novel continuous wave electron-linac based high-intensity slow-positron production source with a projected intensity on the order of 1010 e+/s. Reaching this intensity in our design relies on the transport of positrons (T+ below 600 keV) from the electron-positron pair production converter target to a low-radiation and low-temperature area for moderation in a high-efficiency cryogenic rare gas moderator, solid Ne. The performance of the integrated beamline has been verified through computational studies. The computational results include Monte Carlo calculations of the optimized electron/positron beam energies, converter target thickness, synchronized raster system, transport of the beam from the converter target to the moderator, extraction of the beam from the channel, and moderation efficiency calculations. For the extraction of positrons from the magnetic channel a magnetic field terminator plug prototype has been built and experimental data on the effectiveness of this prototype are presented. The dissipation of the heat away from the converter target and radiation protection measures are also discussed.

  3. High-intensity positron microprobe at Jefferson Lab

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

    Golge, Serkan [North Carolina Central Univ., Durham, NC (United States); Vlahovic, Branislav [North Carolina Central Univ., Durham, NC (United States); Wojtsekhowski, Bogdan B. [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

    2014-06-21

    We present a conceptual design for a novel continuous wave electron-linac based high-intensity slow-positron production source with a projected intensity on the order of 1010 e+/s. Reaching this intensity in our design relies on the transport of positrons (T+ below 600 keV) from the electron-positron pair production converter target to a low-radiation and low-temperature area for moderation in a high-efficiency cryogenic rare gas moderator, solid Ne. The performance of the integrated beamline has been verified through computational studies. The computational results include Monte Carlo calculations of the optimized electron/positron beam energies, converter target thickness, synchronized raster system, transport of the beam from the converter target to the moderator, extraction of the beam from the channel, and moderation efficiency calculations. For the extraction of positrons from the magnetic channel a magnetic field terminator plug prototype has been built and experimental data on the effectiveness of this prototype are presented. The dissipation of the heat away from the converter target and radiation protection measures are also discussed.

  4. Media Advisory - Virginia Regional High School Science Bowl ...

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

    several high schools join the competition for the first time, and as the Thomas Jefferson High School for Science & Technology team, from Alexandra, works to defend its eight-year...

  5. Media Advisory - Virginia Regional High School Science Bowl ...

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

    several high schools join the competition for the first time, and as the Thomas Jefferson High School for Science & Technology team, Alexandra, works to defend its seven-year run...

  6. Jefferson Lab to Test its Tornado Warning Siren at 10:30 a.m...

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

    Jefferson Lab to Test its Tornado Warning Siren at 10:30 a.m. on Friday, Dec. 4 NEWPORT NEWS, Va., Dec. 2, 2015 - The Thomas Jefferson National Accelerator Facility will conduct...

  7. 2005 - 03 | Jefferson Lab

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

    March 2005 Mon, 03212005 - 1:00am Hampton Roads to hop on high speed data network (The Virginian-Pilot) Sun, 03132005 - 1:00am Jefferson Lab Device Helps Breast Imaging...

  8. Christoph W. Leemann Named Jefferson Lab Director | Jefferson...

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

    National Laboratory where he had been involved in the design and construction of high-energy accelerators since 1970. "As the new Jefferson Lab director Christoph Leemann will...

  9. Thomas Jefferson Site Office Jobs

    Office of Science (SC) Website

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe 26thI D- 6 0GrantsThe Life of Enrico Fermi The EnricoHome

  10. Media Advisory - Virginia Regional High School Science Bowl ...

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

    compete. Will one of these teams take home the top trophy and title? The Thomas Jefferson High School for Science & Technology team, from Alexandria, will be defending its long run...

  11. Moving Quarks Help Solve Proton Spin Puzzle | Jefferson Lab

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

    Moving Quarks Help Solve Proton Spin Puzzle NEWPORT NEWS, VA., Sept. 11, 2008 - New theory work at the U.S. Department of Energy's Thomas Jefferson National Accelerator Facility...

  12. Jefferson Lab to Test Tornado Warning Siren on Friday Morning...

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

    , Oct. 4, 2012 - The Thomas Jefferson National Accelerator Facility will test its tornado warning siren at 10:30 a.m. on Friday, Oct. 5. Depending on weather conditions at the time...

  13. JLab to Test Tornado Warning Siren on Friday Morning | Jefferson...

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

    NEWS, Va., May 31, 2012 - The Thomas Jefferson National Accelerator Facility will test its tornado warning siren at 10:30 a.m. on Friday, June 1. Depending on weather...

  14. Jefferson Lab to Test Tornado Warning Siren on Friday Morning...

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

    - The Thomas Jefferson National Accelerator Facility will test its tornado warning siren at 10:30 a.m. on Friday, Aug. 3. Depending on weather conditions at the time of the test,...

  15. JLab to Test Tornado Warning Siren on Friday Morning | Jefferson...

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

    News, Va., May 3, 2012 - The Thomas Jefferson National Accelerator Facility will test its tornado warning siren at 10:30 a.m. on Friday, May 4. Depending on weather...

  16. Jefferson Lab to Test Tornado Warning Siren on Friday Morning...

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

    5, 2012 NEWPORT NEWS, Va. - The Thomas Jefferson National Accelerator Facility will test its tornado warning siren at 10:30 a.m. on Friday, Sept. 7. Depending on weather...

  17. Overview of high gradient SRF R&D for ILC cavities at Jefferson Lab

    SciTech Connect (OSTI)

    Geng, Rongli [JLAB

    2009-11-01

    We report the progress on high gradient R&D of ILC cavities at Jefferson Lab (JLab) since the Beijing workshop. Routine 9-cell cavity electropolishing (EP) processing and RF testing has been enhanced with added surface mapping and T-mapping instrumentations. 12 new 9-cell cavities (10 of them are baseline fine-grain TESLA-shape cavities: 5 built by ACCEL/Research Instruments, 4 by AES and 1 by JLab; 2 of them are alternative cavities: 1 fine-grain ICHIRO-shape cavity built by KEK/Japan industry and 1 large-grain TESLA-shape cavity built by JLab) are EP processed and tested. 76 EP cycles are accumulated, corresponding to more than 200 hours of active EP time. Field emission (FE) and quench behaviors of electropolished 9-cell cavities are studied. EP process continues to be optimized, resulting in advanced procedures and hence improved cavity performance. Several 9-cell cavities reached 35 MV/m after the first light EP processing. FE-free performance has been demonstrated in 9-cell cavities in 35-40 MV/m range. 1-cell cavity studies explore new techniques for defect removal as well as advanced integrated cavity processing. Surface studies of niobium samples electropolished together with real cavities provide new insight into the nature of field emitters. Close cooperation with the US cavity fabrication industry has been undertaking with the successful achievement of 41 MV/m for the first time in a 9-cell ILC cavity built by AES. As the size of the data set grows, it is now possible to construct gradient yield curves, from which one can see that significant progress has been made in raising the high gradient yield.

  18. Jefferson Lab | Jefferson Lab

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    The electrode and insulating base are part of an electron source, which generates electrons for use in particle accelerators. The elements are being tested for high-voltage...

  19. 2014 - 07 | Jefferson Lab

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    July 2014 Wed, 07302014 - 6:42pm Jefferson Lab Weekly Briefs July 30, 2014 Wed, 07232014 - 5:39pm Jefferson Lab Weekly Briefs July 23, 2014 Wed, 07162014 - 6:25pm Jefferson...

  20. 2015 - 07 | Jefferson Lab

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    July 2015 Wed, 07292015 - 5:01pm Jefferson Lab Weekly Briefs July 29, 2015 Wed, 07222015 - 4:00pm Jefferson Lab Weekly Briefs July 22, 2015 Wed, 07152015 - 9:52pm Jefferson...

  1. 2013 | Jefferson Lab

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    3 Wed, 12182013 - 3:04pm Jefferson Lab Weekly Briefs December 18, 2013 Wed, 12112013 - 2:43pm Jefferson Lab Weekly Briefs December 11, 2013 Wed, 12042013 - 1:07pm Jefferson...

  2. 2014 | Jefferson Lab

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    4 Wed, 12172014 - 5:26pm Jefferson Lab Weekly Briefs December 17, 2014 Wed, 12102014 - 6:59pm Jefferson Lab Weekly Briefs December 10, 2014 Wed, 12032014 - 6:13pm Jefferson...

  3. 2008 - 10 | Jefferson Lab

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    October 2008 Fri, 10242008 - 3:00pm Jefferson Lab electron beam charges up Mon, 10062008 - 3:00pm Jefferson Lab, ODU team up for center...

  4. Employees | Jefferson Lab

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    Read more Emergency Information Employees Jefferson Lab Emergency Drill Jefferson Lab conducts regular exercises and drills to continually improve safety and emergency procedures...

  5. 2004 - 09 | Jefferson Lab

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    September 2004 Tue, 09212004 - 2:00pm Catch Jefferson Lab's entertaining, educational Cryogenics Demonstration at the Virginia State Fair Fri, 09102004 - 2:00pm Jefferson Lab...

  6. Jefferson Lab Public Affairs

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    Electronic Media print version Public Affairs Links Home Journalists' Newsroom Media Photographic Archives What is Jefferson Lab? Community Outreach Jefferson Lab Graphic Identity...

  7. Jefferson Lab Human Resources

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    Jefferson Lab Emeritus Program Approved by the JSA Compensation Committee Candidature Upon retirement from Jefferson Lab, a former employee may be considered for and appointed to,...

  8. Jefferson Lab Human Resources

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    Research Assistantship Sponsor Form Jefferson Science Associates MinorityFemale Undergraduate Research Assistantship Jefferson Lab is seeking candidates for a research...

  9. Nuclear Imaging | Jefferson Lab

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    Research Jefferson Lab's Radiation Detector and Imaging Group Members of Jefferson Lab's Radiation Detector & Medical Imaging Group design and build unique imaging devices based on...

  10. 1997 | Jefferson Lab

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    Jefferson Lab Scientific Motivation and Research Program (Nuclear Physics News) Mon, 03171997 - 12:00am Laboratory Profile: Jefferson Lab Introduction (Nuclear Physics News)...

  11. 2014 - 06 | Jefferson Lab

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    Awarded 2014 Prize to Support Research Work with Jefferson Lab Thu, 06052014 - 2:57pm Young Physicist from Syracuse University Receives Jefferson Lab's 2014 Thesis Prize...

  12. Careers | Jefferson Lab

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    interesting and challenging jobs in pursuit of a greater understanding of the visible universe. Read more Job Openings Careers Jobs at Jefferson Lab Jefferson Lab offers many...

  13. 2000 - 08 | Jefferson Lab

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    August 2000 Thu, 08312000 - 2:00pm Christoph Leeman becomes Jefferson Lab's first Deputy Director...

  14. 1999 - 10 | Jefferson Lab

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    October 1999 Thu, 10141999 - 2:00pm Duality Apparently Confirmed In Jefferson Laboratory Experiments...

  15. Jefferson Lab to Test its Tornado Warning Siren at 10:30 a.m...

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    30, 2015 - The Thomas Jefferson National Accelerator Facility will conduct the monthly test of its tornado warning siren at 10:30 a.m. on Friday, Oct. 2. Depending on weather...

  16. Jefferson Lab to Test its Tornado Warning Siren at 10:30 a.m...

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    2, 2015 - The Thomas Jefferson National Accelerator Facility will conduct the monthly test of its tornado warning siren at 10:30 a.m. on Friday, April 3. Depending on weather...

  17. Jefferson Lab to Test its Tornado Warning Siren at 10:30 a.m...

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    1, 2015 - The Thomas Jefferson National Accelerator Facility will conduct the monthly test of its tornado warning siren at 10:30 a.m. on Friday, Sept. 4. Depending on weather...

  18. Jefferson Lab to Test its Tornado Warning Siren at 10:30 a.m...

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    29, 2015 - The Thomas Jefferson National Accelerator Facility will conduct the monthly test of its tornado warning siren at 10:30 a.m. on Friday, May 1. Depending on weather...

  19. Jefferson Lab to Conduct Test of its Tornado Warning Siren at...

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    Sept. 5, 2013 - The Thomas Jefferson National Accelerator Facility will conduct a of test its tornado warning siren at 10:30 a.m. on Friday, Sept. 6. Depending on weather...

  20. Jefferson Lab to Test its Tornado Warning Siren at 10:30 a.m...

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    4, 2015 - The Thomas Jefferson National Accelerator Facility will conduct the monthly test of its tornado warning siren at 10:30 a.m. on Friday, Nov. 6. Depending on weather...

  1. Jefferson Lab to Test its Tornado Warning Siren at 10:30 a.m...

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

    3, 2015 - The Thomas Jefferson National Accelerator Facility will conduct the monthly test of its tornado warning siren at 10:30 a.m. on Friday, June 5. Depending on weather...

  2. Jefferson Lab to Test its Tornado Warning Siren at 10:30 a.m...

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

    4, 2015 - The Thomas Jefferson National Accelerator Facility will conduct the monthly test of its tornado warning siren at 10:30 a.m. on Friday, Feb. 6. Depending on weather...

  3. Jefferson Lab to Test its Tornado Warning Siren at 10:30 a.m...

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

    3, 2015 - The Thomas Jefferson National Accelerator Facility will conduct the monthly test of its tornado warning siren at 10:30 a.m. on Friday, March 6. Depending on weather...

  4. Jefferson Lab to Test its Tornado Warning Siren at 10:30 a.m...

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

    8, 2015 - The Thomas Jefferson National Accelerator Facility will conduct the monthly test of its tornado warning siren at 10:30 a.m. on Friday, July 10. Depending on weather...

  5. Jefferson Lab to Test its Tornado Warning Siren at 10:30 a.m...

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

    3, 2015 - The Thomas Jefferson National Accelerator Facility will conduct the monthly test of its tornado warning siren at 10:30 a.m. on Friday, Aug. 7. Depending on weather...

  6. Jefferson Lab to Conduct Test of its Tornado Warning Siren at...

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    Jan. 2, 2014 - The Thomas Jefferson National Accelerator Facility will conduct a test of its tornado warning siren at 10:30 a.m. on Friday. Depending on weather conditions at the...

  7. Jefferson Lab to Conduct Test of its Tornado Warning Siren at...

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

    Dec. 5, 2013 - The Thomas Jefferson National Accelerator Facility will conduct a test of its tornado warning siren at 10:30 a.m. on Friday. Depending on weather conditions at the...

  8. Jefferson Lab to Conduct Test of its Tornado Warning Siren at...

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    NEWS, Va. - The Thomas Jefferson National Accelerator Facility will conduct the monthly test of its tornado warning siren at 10:30 a.m. on Friday, Jan. 9. Depending on weather...

  9. Jefferson Lab to Conduct Test of its Tornado Warning Siren at...

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

    0, 2013 - The Thomas Jefferson National Accelerator Facility will conduct a test of its tornado warning siren at 10:30 a.m. on Friday, Nov. 1. Depending on weather conditions at...

  10. Jefferson Lab to Conduct Test of its Tornado Warning Siren at...

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

    , 2013 - The Thomas Jefferson National Accelerator Facility will conduct a test of its tornado warning siren at 10:30 a.m. on Friday, Oct. 4. Depending on weather conditions at the...

  11. Jefferson Lab's Free-Electron Laser Joins With Others in New...

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    Free-Electron Laser Joins With Others in New Research Venture NEWPORT NEWS, VA, April 29, 2009 - The U.S. Department of Energy's Thomas Jefferson National Accelerator Facility will...

  12. 2008 - 10 | Jefferson Lab

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    October 2008 Fri, 10242008 - 12:00am Jefferson Lab electron beam charges up (Inside Business) Mon, 10062008 - 12:00am Jefferson Lab, ODU team up for center (Inside Business...

  13. 2015 - 08 | Jefferson Lab

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    August 2015 Mon, 08312015 - 11:33am Jefferson Lab to Test Tornado Warning Siren at 10:30 a.m. on Friday, Sept. 4 Wed, 08262015 - 8:49am Celebrate Jefferson Lab Safety Milestone...

  14. 2014 - 04 | Jefferson Lab

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    April 2014 Wed, 04302014 - 4:43pm Jefferson Lab Weekly Briefs April 30, 2014 Wed, 04232014 - 5:50pm Jefferson Lab Weekly Briefs April 23, 2014 Wed, 04162014 - 7:05pm...

  15. Emergency Information | Jefferson Lab

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    Employees Jefferson Lab Emergency Drill Jefferson Lab conducts regular exercises and drills to continually improve safety and emergency procedures. A D D I T I O N A L L I N K S:...

  16. 2008 | Jefferson Lab

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    at Jefferson Lab February 2008 Tue, 02262008 - 1:00pm Media Advisory: March 1 Middle School Science Bowl Tournament Mon, 02252008 - 2:15pm Jefferson Lab Hosts 20 Teams for...

  17. 2009 | Jefferson Lab

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    Remote Control On April 14 Mon, 03022009 - 1:00pm Jefferson Lab Hosts 23 Teams for Middle School Science Bowl on March 7 February 2009 Thu, 02192009 - 1:00pm Jefferson Lab...

  18. 2006 - 11 | Jefferson Lab

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    162006 - 1:00am Jefferson Lab attracts record numbers to Geant4 workshop (Cern Courier) Sun, 11122006 - 1:00am Jefferson Lab laser sets power record (Richmond Times-Dispatch)...

  19. 2004 - 04 | Jefferson Lab

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    April 2004 Thu, 04152004 - 2:00pm Jefferson Lab recognizes its Outstanding Small Business Contractor for FY 2003 Mon, 04122004 - 2:00pm Jefferson Lab invites families, groups...

  20. 2015 - 04 | Jefferson Lab

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    April 2015 Wed, 04292015 - 4:37pm Jefferson Lab Weekly Briefs April 29, 2015 Wed, 04222015 - 2:02pm Jefferson Lab Weekly Briefs April 22, 2015 Wed, 04152015 - 5:37pm...

  1. 2005 - 10 | Jefferson Lab

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    2:00pm Jefferson Lab announces two Fall Science Series events -- featuring magic and football Tue, 10042005 - 2:00pm Jefferson Lab News -Dept. of Energy co-sponsors Oct. 11th...

  2. Research | Jefferson Lab

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    Laser. A D D I T I O N A L L I N K S: Read more Nuclear Imaging Research Jefferson Lab's Radiation Detector and Imaging Group Members of Jefferson Lab's Radiation Detector &...

  3. 2013 - 03 | Jefferson Lab

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    March 2013 Wed, 03272013 - 2:55pm Jefferson Lab Weekly Briefs March 27, 2013 Wed, 03202013 - 2:11pm Jefferson Lab Weekly Briefs March 20, 2013 Wed, 03132013 - 5:24pm...

  4. 2010 - 07 | Jefferson Lab

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    Lab and Jefferson Science Associates Bring First School of Physics to Sub-Saharan Africa Mon, 07262010 - 2:00pm Media Advisory - Jefferson Lab Hosts Summer Intern Science...

  5. Quality Assurance | Jefferson Lab

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    Quality Assurance Is A Key Focus At Jefferson Lab Quality assurance is a critical function at Jefferson Lab, protecting workers, lab facilities, the environment and the public. A D...

  6. 2015 | Jefferson Lab

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    October 2015 Thu, 10152015 - 8:38am Jefferson Lab Weekly Briefs October 15, 2015 Wed, 10072015 - 5:07pm Jefferson Lab Weekly Briefs October 7, 2015 Thu, 10012015 - 8:00am...

  7. 2009 - 07 | Jefferson Lab

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    2009 Sun, 07052009 - 11:00pm Jefferson Lab creates better way to discover breast cancer Sun, 07052009 - 11:00pm Jefferson Lab employee invents low-tech gizmo to protect...

  8. 2008 | Jefferson Lab

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

    2008 Thu, 10232008 - 11:00pm Jefferson Lab electron beam charges up (Inside Business) Sun, 10052008 - 11:00pm Jefferson Lab, ODU team up for center (Inside Business) September...

  9. 2011 - 09 | Jefferson Lab

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    September 2011 Sun, 09252011 - 2:00pm Jefferson Lab Weekly Briefs September 28, 2011 Wed, 09212011 - 2:00pm Jefferson Lab Weekly Briefs September 21, 2011 Wed, 09142011 -...

  10. 2008 - 04 | Jefferson Lab

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    April 2008 Sun, 04132008 - 11:00pm Jefferson Lab finds its man Mont (Inside Business) Wed, 04022008 - 11:00pm New director of Jefferson Lab named (Daily Press) Wed, 04022008...

  11. 2006 | Jefferson Lab

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    2006 - 12:00am Jefferson Lab attracts record numbers to Geant4 workshop (Cern Courier) Sun, 11122006 - 12:00am Jefferson Lab laser sets power record (Richmond Times-Dispatch)...

  12. Theory Center | Jefferson Lab

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    Science Jefferson Lab Theory Center Theoretical research at Jefferson Lab is critical to the lab's efforts to fulfill its scientific mission. A D D I T I O N A L L I N K S:...

  13. 2009 | Jefferson Lab

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    Lecture July 2009 Sun, 07052009 - 11:00pm Jefferson Lab creates better way to discover breast cancer Sun, 07052009 - 11:00pm Jefferson Lab employee invents low-tech gizmo to...

  14. Search | Jefferson Lab

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    Electron Beam Accelerator SEARCH JEFFERSON LAB Phone Book A-Z Index Departments Search the JLab Web Site Loading...

  15. 2004 - 06 | Jefferson Lab

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    June 2004 Tue, 06152004 - 2:00pm Jefferson Lab awards 7.3 million construction contract to Chesapeake firm...

  16. 2004 - 08 | Jefferson Lab

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    August 2004 Wed, 08112004 - 2:00pm Jefferson Lab Detector Technology Aids Development of Cystic Fibrosis Therapy...

  17. 2001 - 04 | Jefferson Lab

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    April 2001 Sat, 04212001 - 2:00pm "Science is Cool" at Jefferson Lab's Open House, Saturday, April 21...

  18. 2001 - 02 | Jefferson Lab

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    February 2001 Fri, 02092001 - 2:00pm Jefferson Lab's Spring Science Series kicks off with Feb. 13 event...

  19. 2011 - 05 | Jefferson Lab

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    May 2011 Wed, 05112011 - 10:31am Two Jefferson Lab Scientists Win Prestigious Early Career Awards...

  20. Scientists | Jefferson Lab

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    Committee (PAC) Experiments Proposals Research Highlights Publications Accelerator Science Experiment Research Free-Electron Laser Theory Center Jefferson Lab Library...

  1. 6 GeV Parity Violating Deep Inelastic Scattering at Jefferson Laboratory

    SciTech Connect (OSTI)

    Subedi, Ramesh R.; Deng Xiaoyan; Wang Diancheng; Zheng Xiaochao; Michaels, Robert; Pan Kai; Reimer, Paul E.

    2011-10-24

    The 6 GeV Parity Violating Deep Inelastic Scattering (PVDIS) experiment has measured a 10{sup -4} level asymmetry through polarized electron scattering off a liquid deuterium target with a beam energy of 6 GeV. This experiment has a goal of measuring a combination of the product of the weak neutral couplings of the electron and the quark with a factor of six improvement in precision over world data. Precise data for the couplings are essential to search for physics beyond the Standard Model. The experiment took place in Hall A at Thomas Jefferson National Accelerator Facility (Jefferson Laboratory) and data collection was completed in the end of 2009. A highly specialized counting data acquisition system with an inherent particle identification was developed and utilized. We have taken data at two Q{sup 2} points in order to possibly address the hadronic correction due to higher twist effects. An overview of the experiment will be presented.

  2. Thomas Jefferson National Accelerator Facility Technology Marketing

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    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired Solar FuelTechnologyTel:February 25, 2015 |7 D I S C L A I M ESummaries

  3. New director of Jefferson Lab named (Daily Press) | Jefferson...

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    https:www.jlab.orgnewsarticlesnew-director-jefferson-lab-named-daily-press New director of Jefferson Lab named Hugh Montgomery Hugh Montgomery has been named president of...

  4. Resources | Jefferson Lab

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    Resources Resources Machine Control Center Display Jefferson Lab's accelerator is operated from the Machine Control Center. The MCC features a full-wall display that allows...

  5. Resources | Jefferson Lab

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    Resources Machine Control Center Display Jefferson Lab's accelerator is operated from the Machine Control Center. The MCC features a full-wall display that allows operators to...

  6. Education | Jefferson Lab

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    Jefferson Lab Education Science Education staff support a range of educational programs. One popular program is the Physics Fest, seen here. K-12 classes take field trips to...

  7. 2000 | Jefferson Lab

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    September 2000 Thu, 09212000 - 2:00pm Federal Laboratory Multiplies Its Research Capacity August 2000 Thu, 08312000 - 2:00pm Christoph Leeman becomes Jefferson Lab's first...

  8. 1997 - 03 | Jefferson Lab

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    Physics News) Mon, 03171997 - 12:00am Laboratory Profile: Jefferson Lab Scientific Motivation and Research Program (Nuclear Physics News) Mon, 03171997 - 12:00am Laboratory...

  9. Policymakers | Jefferson Lab

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    Construction Policymakers Construction at Jefferson Lab The Technology & Engineering Development Facility or TEDF is one of the new facilities being constructed at Jefferon Lab is...

  10. Construction | Jefferson Lab

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    Policymakers Construction at Jefferson Lab The Technology & Engineering Development Facility or TEDF is one of the new facilities being constructed at Jefferon Lab is support of...

  11. Science | Jefferson Lab

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    GeV Upgrade will greatly expand the research capabilities of Jefferson Lab, adding a fourth experimental hall, upgrading existing halls and doubling the power of the lab's...

  12. Research | Jefferson Lab

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    are massive facilities that house sophisticated equipment as large as a house. A fourth experimental hall, Hall D, is under construction. RESEARCH AT JEFFERSON LAB As a...

  13. Jefferson Lab - Employees

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    >

    Jefferson Lab conducts regular exercises and drills to continually improve safety and emergency procedures.
  14. 1995 - 11 | Jefferson Lab

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    November 1995 Sat, 11181995 - 1:00am Beam Up, Running at CEBAF (Daily Press) Wed, 11151995 - 1:00am Research Begins at Jefferson Lab...

  15. 2005 - 05 | Jefferson Lab

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    May 2005 Wed, 05182005 - 5:50pm Jefferson Lab Builds First Single Crystal Single Cell Accelerating Cavity Mon, 05022005 - 2:00pm Governor's Distinguished CEBAF Professorship...

  16. 2005 - 07 | Jefferson Lab

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    July 2005 Fri, 07292005 - 2:00pm News Media invited to interview Jefferson Lab summer science enrichment program participants; cover closing Poster Session Tue, 07262005 -...

  17. 2004 - 05 | Jefferson Lab

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    May 2004 Wed, 05122004 - 2:00pm Theoretical physicist Evgeny Epelbaum joined Jefferson Lab late in 2003 as the inaugural Nathan Isgur Distinguished Postdoctoral Fellow...

  18. Jefferson Lab Public Affairs

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    Web Design Photography Video Portfolio print version Public Affairs Links Home Journalists' Newsroom Media Photographic Archives What is Jefferson Lab? Community Outreach Public...

  19. Jefferson Lab Public Affairs

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    Electronic Media print version Public Affairs Links Home Journalists' Newsroom Media Photographic Archives What is Jefferson Lab? Community Outreach Public Affairs Director's...

  20. Jefferson Lab Human Resources

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    Human Resources The Human Resources team is fully integrated with Jefferson Lab's mission, committed to providing quality customer service based on expertise, innovation and...

  1. Jefferson Lab: Research Highlights

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    Archive print version Archive Nuclear Physics Accelerator FEL Medical Imaging 12000 Jefferson Avenue, Newport News, VA 23606 Phone: (757) 269-7100 Fax: (757) 269-7363 contact...

  2. Collaboration | Jefferson Lab

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    its inception. In a previous Montage, I discussed visiting China and the plans for Chinese institutions to participate in experiments at Jefferson Lab. There were...

  3. Jefferson Lab Directorate

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    with Lab stakeholders. Director's Office Leadership Council Public Affairs Office Science Education Office Staff Services 12000 Jefferson Avenue, Newport News, VA 23606 Phone:...

  4. Weak Interaction | Jefferson Lab

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    Weak Interaction February 22, 2011 Jefferson Lab has an accelerator designed to do incisive medium energy physics. This program is dominated by experiments aimed at developing our...

  5. Jefferson Lab - Careers

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

    570 en Accessibility https:www.jlab.orgaccessibility

    Jefferson Lab" src"sitesdefaultfiles...

  6. Jefferson Lab - Policymakers

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    900 en Construction https:www.jlab.orgconstruction

    Jefferson Lab" src"sitesdefault...

  7. Education - Students | Jefferson Lab

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    - Students Pulse Laser Deposit Hadware Research at Jefferson Lab leads to the development of technology that has practical applications, such as pulse laser deposit hardware...

  8. Jefferson Lab Employee Activities

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    The party was a huge success because of your help Photos With Santa Party Pictures (Login Required) This year, Jefferson Lab participated in the Wes' Wish 2015: Piles...

  9. 2007 - 10 | Jefferson Lab

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    dentistry solves modern crimes, unravels mysteries of Salem Witch Trials, ancient Egypt Mon, 10152007 - 12:49pm Energy Savings Deeply Rooted At Jefferson Lab Mon, 1001...

  10. 2007 | Jefferson Lab

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    dentistry solves modern crimes, unravels mysteries of Salem Witch Trials, ancient Egypt Mon, 10152007 - 12:49pm Energy Savings Deeply Rooted At Jefferson Lab Mon, 1001...

  11. Org Charts | Jefferson Lab

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    orgANIZATION Charts Jefferson Lab Organizational Chart 12 GeV Project Organization Accelerator Operations, Research & Development Division Chief Operating Officer Chief Financial...

  12. 2007 - 06 | Jefferson Lab

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

    June 2007 Tue, 06122007 - 2:00pm Innovative Energy-Saving Process Earns Jefferson Lab Team a 2007 White House Award...

  13. Jefferson Lab Tech Associate Invents Lockout Device for Equipment...

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

    1990s and building Jefferson Lab's Continuous Electron Beam Accelerator was in high gear. The Accelerator Division was busy installing some 30 vacuum ion pumps in the tunnel....

  14. Pulsed laser deposition with a high average power free electron laser: Benefits of subpicosecond pulses with high repetition rate

    E-Print Network [OSTI]

    Reilly, Anne

    Pulsed laser deposition with a high average power free electron laser: Benefits of subpicosecond 2002 We have conducted experiments exploring pulsed laser deposition of thin films using the high average power Thomas Jefferson National Accelerator Facility Free Electron Laser. The combination

  15. Jefferson Lab Hosts 20 Teams for High School Science Bowl on...

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

    Hosts 20 Teams for High School Science Bowl on Feb. 2 NEWPORT NEWS, Va., Jan. 25, 2008 - Some of the brightest young minds in the Commonwealth will meet at the Department of...

  16. Jefferson Lab Hosts 22 Teams for High School Science Bowl on...

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

    2 Teams for High School Science Bowl on Feb. 7 NEWPORT NEWS, Va., Feb. 2, 2009 - Some of the brightest young minds in the Commonwealth will meet at the Department of Energy's...

  17. A high-finesse Fabry-Perot cavity with a frequency-doubled green laser for precision Compton polarimetry at Jefferson Lab

    E-Print Network [OSTI]

    Rakhman, A; Nanda, S; Benmokhtar, F; Camsonne, A; Cates, G D; Dalton, M M; Franklin, G B; Friend, M; Michaels, R W; Nelyubin, V; Parno, D S; Paschke, K D; Quinn, B P; Souder, P A; Tobias, W A

    2016-01-01

    A high-finesse Fabry-Perot cavity with a frequency-doubled continuous wave green laser (532~nm) has been built and installed in Hall A of Jefferson Lab for high precision Compton polarimetry. The infrared (1064~nm) beam from a ytterbium-doped fiber amplifier seeded by a Nd:YAG nonplanar ring oscillator laser is frequency doubled in a single-pass periodically poled MgO:LiNbO$_{3}$ crystal. The maximum achieved green power at 5 W IR pump power is 1.74 W with a total conversion efficiency of 34.8\\%. The green beam is injected into the optical resonant cavity and enhanced up to 3.7~kW with a corresponding enhancement of 3800. The polarization transfer function has been measured in order to determine the intra-cavity circular laser polarization within a measurement uncertainty of 0.7\\%. The PREx experiment at Jefferson Lab used this system for the first time and achieved 1.0\\% precision in polarization measurements of an electron beam with energy and current of 1.0~GeV and 50~$\\mu$A.

  18. A high-finesse Fabry-Perot cavity with a frequency-doubled green laser for precision Compton polarimetry at Jefferson Lab

    E-Print Network [OSTI]

    A. Rakhman; M. Hafez; S. Nanda; F. Benmokhtar; A. Camsonne; G. D. Cates; M. M. Dalton; G. B. Franklin; M. Friend; R. W. Michaels; V. Nelyubin; D. S. Parno; K. D. Paschke; B. P. Quinn; P. A. Souder; W. A. Tobias

    2016-01-03

    A high-finesse Fabry-Perot cavity with a frequency-doubled continuous wave green laser (532~nm) has been built and installed in Hall A of Jefferson Lab for high precision Compton polarimetry. The infrared (1064~nm) beam from a ytterbium-doped fiber amplifier seeded by a Nd:YAG nonplanar ring oscillator laser is frequency doubled in a single-pass periodically poled MgO:LiNbO$_{3}$ crystal. The maximum achieved green power at 5 W IR pump power is 1.74 W with a total conversion efficiency of 34.8\\%. The green beam is injected into the optical resonant cavity and enhanced up to 3.7~kW with a corresponding enhancement of 3800. The polarization transfer function has been measured in order to determine the intra-cavity circular laser polarization within a measurement uncertainty of 0.7\\%. The PREx experiment at Jefferson Lab used this system for the first time and achieved 1.0\\% precision in polarization measurements of an electron beam with energy and current of 1.0~GeV and 50~$\\mu$A.

  19. 2013 - 04 | Jefferson Lab

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

    Our Daughters and Sons to Work Day is April 25 Wed, 04102013 - 11:31am JLab Celebrates National Library Week with Events Beginning on April 15 Mon, 04082013 - 3:41pm Jefferson...

  20. 2009 - 06 | Jefferson Lab

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

    June 2009 Mon, 06292009 - 3:00pm JLab Theory Center Director search Thu, 06252009 - 3:00pm Jefferson Lab Jackets for Staff Members Wed, 06242009 - 3:00pm JLab Personnel...

  1. 2000 - 03 | Jefferson Lab

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    March 2000 Thu, 03302000 - 1:00am Jefferson Lab Gets New Funds (Washington BureauDaily Press) Mon, 03272000 - 1:00am Practically Perfect, Prof. (Daily Press) Sat, 03182000 -...

  2. SRF Institute | Jefferson Lab

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

    Lab Jefferson Lab's SRF Institute designs, manufactures, assembles and tests SRF technology, such as these niobium cavities, for facilities worldwide. A D D I T I O N A L...

  3. 2007 - 03 | Jefferson Lab

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

    Division Tue, 03062007 - 1:00pm Record 18 teams prepare for Virginia Regional Middle School Science Bowl on March 10 at Jefferson Lab Tue, 03062007 - 1:00pm Record 18 teams...

  4. 2006 - 03 | Jefferson Lab

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    Standards of Learning Tests Fri, 03172006 - 1:00pm Nine teams compete in Virginia Middle School Science Bowl competition at Jefferson Lab on March 11 Fri, 03172006 - 1:00pm...

  5. 2009 - 03 | Jefferson Lab

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

    at Jefferson Lab Mon, 03022009 - 1:00pm Media Advisory: March 7 Virginia Middle School Science Bowl Tournament Mon, 03022009 - 1:00pm JLab Guest Lecturer Discusses...

  6. 2005 - 03 | Jefferson Lab

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    Bloggers Tue, 03082005 - 6:41pm Maryland team wins VirginiaMaryland Regional Middle School Science Bowl; moves on to Nationals Mon, 03072005 - 6:44pm Jefferson Lab hosts two...

  7. 2006 | Jefferson Lab

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

    Standards of Learning Tests Fri, 03172006 - 1:00pm Nine teams compete in Virginia Middle School Science Bowl competition at Jefferson Lab on March 11 Fri, 03172006 - 1:00pm...

  8. 2008 - 02 | Jefferson Lab

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    February 2008 Tue, 02262008 - 1:00pm Media Advisory: March 1 Middle School Science Bowl Tournament Mon, 02252008 - 2:15pm Jefferson Lab Hosts 20 Teams for Middle School Science...

  9. News Links | Jefferson Lab

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    of Energy (March 16, 2011, A Message from Dr. Timothy Hallman, DOE) Jefferson Lab: Laser gun to eventually shoot down missiles (February 21, 2011, Daily Press) Navy Breaks World...

  10. 2011 | Jefferson Lab

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    Dr. Timothy Hallman, DOE) February 2011 Mon, 02212011 - 12:00am Jefferson Lab: Laser gun to eventually shoot down missiles (Daily Press) Sun, 02202011 - 12:00am Navy Breaks...

  11. 2011 - 02 | Jefferson Lab

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    February 2011 Mon, 02212011 - 12:00am Jefferson Lab: Laser gun to eventually shoot down missiles (Daily Press) Sun, 02202011 - 12:00am Navy Breaks World Record With Futuristic...

  12. 1995 | Jefferson Lab

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

    November 1995 Sat, 11181995 - 1:00am Beam Up, Running at CEBAF (Daily Press) Wed, 11151995 - 1:00am Research Begins at Jefferson Lab June 1995 Thu, 06221995 - 12:00am...

  13. 2005 - 10 | Jefferson Lab

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    October 2005 Wed, 10122005 - 12:00am Egad, Einstein: Jefferson Lab lecture offers a rare look at the great man (Daily Press) Wed, 10052005 - 12:00am Investigating the Proton's...

  14. 2015 - 11 | Jefferson Lab

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

    ESH&Q Building Project Update Mon, 11232015 - 10:38am Jefferson Lab Stormwater Pollution Prevention Reminder Tue, 11102015 - 4:08pm CEBAF Center Loading Dock Area Closed...

  15. 2004 - 04 | Jefferson Lab

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

    April 2004 Tue, 04272004 - 12:00am A Region Better Than Advertised (Virginian-Pilot) Tue, 04202004 - 12:00am Jefferson Lab vies for expansion (Daily Press) Tue, 04202004 -...

  16. 2004 - 07 | Jefferson Lab

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    July 2004 Sat, 07312004 - 12:00am Supported Free Electron Laser Most Powerful Tunable Laser in World (Office of Naval Research) Sat, 07312004 - 12:00am Jefferson Lab beats...

  17. 2015 - 05 | Jefferson Lab

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

    May 2015 Tue, 05192015 - 3:48pm Jefferson Lab's Annual Property Inventory Will Take Place June 1 - July 31 Tue, 05192015 - 3:01pm JLab Implements Process to Improve Public...

  18. 2010 - 03 | Jefferson Lab

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

    - 12:00am May 3 Abstract for ColloquiumPublic Lecture on May 11 at Jefferson Lab titled: Accelerator Driven System (ADS) in Support of Sustainable Nuclear Power Program in India....

  19. 2010 | Jefferson Lab

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

    - 12:00am May 3 Abstract for ColloquiumPublic Lecture on May 11 at Jefferson Lab titled: Accelerator Driven System (ADS) in Support of Sustainable Nuclear Power Program in India....

  20. 2012 - 05 | Jefferson Lab

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

    JLab Celebrates 6 GeV End of an Era on June 6 Thu, 05312012 - 3:00pm Cigarette Butt Causes Fire Outside of CEBAF Center Wed, 05232012 - 3:00pm Jefferson Lab Unveils New...

  1. 2001 - 11 | Jefferson Lab

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

    November 2001 Sat, 11172001 - 1:00am Jefferson Lab Gets New Chief: Leemann takes top post (Times-Dispatch) Sat, 11172001 - 1:00am Leemann Officially Takes Over Peninsula's...

  2. 2001 | Jefferson Lab

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

    November 2001 Fri, 11162001 - 2:00pm Christoph W. Leemann Named Jefferson Lab Director August 2001 Tue, 08142001 - 2:00pm DOE Announces First Awards in Scientific Discovery...

  3. Policymakers | Jefferson Lab

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

    Jefferson Lab's 25th Anniversary celebration. A D D I T I O N A L L I N K S: Brochures Information Sheets At A Glance 12 GeV Upgrade Strategic Plan Economic Impact top-right...

  4. 2009 | Jefferson Lab

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

    Jefferson Lab Status After Severe Weather Thu, 12172009 - 3:00pm End-of-Year Dosimeter (Radiation Badge) Change-Out Wed, 12162009 - 3:00pm 2009 Holiday Shutdown Schedule...

  5. 2009 - 12 | Jefferson Lab

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

    Jefferson Lab Status After Severe Weather Thu, 12172009 - 3:00pm End-of-Year Dosimeter (Radiation Badge) Change-Out Wed, 12162009 - 3:00pm 2009 Holiday Shutdown Schedule...

  6. 1999 - 12 | Jefferson Lab

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

    1999 Wed, 12011999 - 1:00am HAPPEX Probes 'sea' of Nucleon Strangeness (CERN Courier) Wed, 12011999 - 1:00am Novel X-rays Detected at Jefferson (CERN Courier...

  7. Open House | Jefferson Lab

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

    Site Map and Tour Stops map OHapp Scan or download the Jefferson Lab Open House App (Android Only) and have event information on hand ready to go. Driving and Parking Directions...

  8. 2015 | Jefferson Lab

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

    October 2015 Thu, 10152015 - 7:53pm Nuclear Science Advisory Committee Issues Plan for U.S. Nuclear Physics Research September 2015 Wed, 09302015 - 8:28am Jefferson Lab to Test...

  9. 2000 - 10 | Jefferson Lab

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

    October 2000 Wed, 10112000 - 11:00pm Jefferson Lab: Cancer-seeking Camera Demystifies Research Lab (Daily Press) Sat, 10072000 - 11:00pm Breast Cancer Biopsies Could Be Things...

  10. 2012 - 04 | Jefferson Lab

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

    April 2012 Thu, 04262012 - 1:00pm Boron-Nitride Nanotubes Show Potential in Cancer Treatment Fri, 04202012 - 1:00pm Jefferson Lab Plans Open House for May 19...

  11. 2009 - 04 | Jefferson Lab

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

    April 2009 Sun, 04192009 - 11:00pm Painting firm honored by Jefferson Lab (Daily Press) Sun, 04192009 - 11:00pm Hampton University awarded 1.3 million for breast cancer...

  12. 1998 | Jefferson Lab

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

    November 1998 Sun, 11011998 - 12:00pm Draayer Elected as New SURA President October 1998 Thu, 10011998 - 12:00pm Jefferson Lab invites public to free lecture by author of...

  13. 2006 - 04 | Jefferson Lab

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

    April 2006 Sun, 04232006 - 1:00pm Jefferson Lab News - HAPPEx II reveals proton isn't very strange Mon, 04102006 - 1:00pm Free-Electron Laser Targets Fat Wed, 04052006 -...

  14. 2002 - 04 | Jefferson Lab

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

    April 2002 Sun, 04282002 - 11:00pm Not-So-Neutral Neutron: Clearer view of neutron reveals charged locales (Science News) Fri, 04052002 - 12:00am New Appointee Tours Jefferson...

  15. 2011 - 05 | Jefferson Lab

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

    May 2011 Mon, 05232011 - 1:00pm National labs offer computing time to Japanese physicists Wed, 05112011 - 1:00pm Two Jefferson Lab Scientists Win Prestigious Early Career...

  16. 2011 | Jefferson Lab

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

    May 2011 Wed, 05112011 - 10:31am Two Jefferson Lab Scientists Win Prestigious Early Career Awards April 2011 Fri, 04082011 - 10:07am Superconductivity Centennial Wed, 0406...

  17. 2003 - 10 | Jefferson Lab

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

    October 2003 Wed, 10082003 - 12:00am Russian and 2 Americans Win Nobel Prize Physics Honors (The New York Times) Tue, 10072003 - 12:00am Jefferson Lab announces Oct. 7 Fall...

  18. 2011 | Jefferson Lab

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

    time to Japanese physicists Wed, 05112011 - 2:00pm Two Jefferson Lab Scientists Win Prestigious Early Career Awards April 2011 Tue, 04262011 - 2:00pm Harris Power Earns...

  19. Jefferson Lab Divisions & Departments

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

    print version Org Charts Directorate Accelerator COO CFO ITCIO CSO Engineering ESH&Q FEL Physics 12000 Jefferson Avenue, Newport News, VA 23606 Phone: (757) 269-7100 Fax: (757)...

  20. 2001 - 04 | Jefferson Lab

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

    April 2001 Sun, 04222001 - 12:00am Doors to Discovery (Daily Press) Thu, 04192001 - 12:00am Peek in Jefferson Lab (Daily Press) Tue, 04172001 - 12:00am Electron Accelerator...

  1. 2004 - 10 | Jefferson Lab

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

    October 2004 Sun, 10242004 - 12:00am efferson Lab Hopes to Bulk Up 'Strong Force' Theory (Daily Press) Mon, 10042004 - 12:00am Jefferson Lab a Worthy Investment (Roanoke.com...

  2. 2013 | Jefferson Lab

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

    December 2013 Mon, 12092013 - 10:15am Newly Invented Shielding For Stopping Neutrons Cold Thu, 12052013 - 3:59pm Jefferson Lab to Conduct Test of its Tornado Warning Siren at...

  3. Facilities | Jefferson Lab

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

    JLab Buildings Facilities Management & Logistics is responsible for performing or specifying performance of all Jefferson Lab facility maintenance. A D D I T I O N A L L I N K S:...

  4. 1999 - 09 | Jefferson Lab

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

    Museum (Daily Press) Thu, 09091999 - 12:00am Success at Jefferson Lab Spurs Need for More Space (Burrelle's) Wed, 09011999 - 12:00am BIG FEL Grows in Power (Laser Focus World...

  5. 1999 | Jefferson Lab

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

    October 1999 Thu, 10141999 - 2:00pm Duality Apparently Confirmed In Jefferson Laboratory Experiments July 1999 Tue, 07201999 - 2:00pm Tunable Laser Reaches Record Power Level...

  6. Ultraviolet | Jefferson Lab

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

    States. For some years, the Jefferson Lab FEL has been a world leader in free-electron laser power. Strongly supported by funding from the Office of Naval Research, it achieved...

  7. Jefferson Lab: Research Highlights

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

    Heats Up Is It or Isn't It? Pentaquark Debate Heats Up Jefferson Lab Medical Imager Spots Breast Cancer Effective Model of the Atom Gets More Realistic JLab Completes 100th...

  8. Jefferson Lab plans Open House for Saturday, April 16 | Jefferson...

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

    Einstein World Year of Physics 2005: Einstein in the 21st Century Jefferson Lab plans Open House for Saturday, April 16 March 16, 2005 The Department of Energy's Jefferson Lab,...

  9. Optical Wireless based on High Brightness Visible LEDs Grantham Pang, Thomas Kwan, Hugh Liu, Chi-Ho Chan

    E-Print Network [OSTI]

    Pang, Grantham

    tolerance to humidity, low power consumption and minimal heat generation. Light-emitting diodes (LEDsOptical Wireless based on High Brightness Visible LEDs Grantham Pang, Thomas Kwan, Hugh Liu, Chi use of lighting or signaling devices constructed by light-emitting diodes (LEDs). The idea

  10. Analysis of New High-Q0 SRF Cavity Tests by Nitrogen Gas Doping at Jefferson Lab

    SciTech Connect (OSTI)

    Palczewski, Ari D.; Geng, Rongli; Reece, Charles E.

    2014-12-01

    In order to refine systematic understanding and establish confident process control, Jefferson Lab has joined with partners to investigate and thoroughly characterize the dramatically higher Q0 of 1.3 GHz niobium cavities first reported by FNAL in 2013[1]. With partial support from the LCLS-II project, JLab has undertaken a parametric study of nitrogen doping in vacuum furnace at 800 °C followed by variable depth surface removal in the 5 - 20 ?m range. Q0 above 3×1010 are typical at 2.0 K and 16 MV/m accelerating field. We report observations from the single cell study and current interpretations. In addition to the parametric single cell study, we also report on the ongoing serial testing of six nitrogen-doped 9-cell cavities as baseline prototypes for LCLS-II.

  11. APEX: A Prime EXperiment at Jefferson Lab - Test Run Results and Full Run Plans; Update

    SciTech Connect (OSTI)

    Beacham, James

    2015-06-01

    APEX is an experiment at Thomas Jefferson National Accelerator Facility (JLab) in Virginia, USA, that searches for a new gauge boson (A') with sub-GeV mass and coupling to ordinary matter of g' ~ (10^-6 - 10?²)e. Electrons impinge upon a fixed target of high-Z material. An A' is produced via a process analogous to photon bremsstrahlung, decaying to an e?+e? pair. A test run was held in July of 2010, covering mA' = 175 to 250 MeV and couplings g'/e > 10?³. A full run is approved and will cover mA' ~ 65 to 525 MeV and g'/e > 2.3 x 10??, and is expected to occur sometime in 2016 or 2017.

  12. Jefferson Lab IEC 61508/61511 Safety PLC Based Safety System

    SciTech Connect (OSTI)

    Kelly Mahoney, Henry Robertson

    2009-10-01

    This paper describes the design of the new 12 GeV Upgrade Personnel Safety System (PSS) at the Thomas Jefferson National Accelerator Facility (TJNAF). The new PSS design is based on the implementation of systems designed to meet international standards IEC61508 and IEC 61511 for programmable safety systems. In order to meet the IEC standards, TJNAF engineers evaluated several SIL 3 Safety PLCs before deciding on an optimal architecture. In addition to hardware considerations, software quality standards and practices must also be considered. Finally, we will discuss R&D that may lead to both high safety reliability and high machine availability that may be applicable to future accelerators such as the ILC. Key words: PLC, Safety, TJNAF, SIL, PSS, PPS, Software, ILC Notice: Authored by Jefferson Science Associates, LLC under U.S. DOE Contract No. DE-AC05-06OR23177. The U.S. Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce this manuscript for U.S. Government purposes.

  13. Nuclear Physics | Jefferson Lab

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

    Proposal PAC Review Scheduling Processes top-right bottom-left-corner bottom-right-corner Nuclear Physics Scientists from across the country and around the world use the Thomas...

  14. 2004 | Jefferson Lab

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

    December 2004 Fri, 12032004 - 2:00pm Zooming in on a proton packed with surprises Fri, 12032004 - 2:00pm Anthony Thomas accepts position of Chief Scientist and Theory Group...

  15. Jefferson Lab Laser Twinkles in Rare Color | Jefferson Lab

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

    on the Jefferson Lab Ultraviolet Demonstration FEL, we delivered vacuum ultraviolet harmonic light to a calibrated VUV photodiode and measured five nanojoules of fully coherent...

  16. Jefferson Lab Weekly Briefs November 25, 2015 | Jefferson Lab

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

    and Shutdown Days, Jefferson Lab closed Environment, Safety, Health & Quality Safe Turkey Tips from the CDC The Centers for Disease Control and Prevention offer food safety...

  17. Jefferson Lab Weekly Briefs September 16, 2015 | Jefferson Lab

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

    About Science Jefferson Lab volunteers are needed to help students with a range of classroom activities and as mentors for role model visits as part of the Becoming...

  18. Jefferson Lab finds its man Mont (Inside Business) | Jefferson...

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

    https:www.jlab.orgnewsarticlesjefferson-lab-finds-its-man-mont-inside-business Jefferson Lab finds its man Mont Hugh Montgomery Hugh Montgomery, a British nuclear physicist...

  19. A Bigger Chill | Jefferson Lab

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

    Webb Space Telescope An artist's rendering of the James Webb Space Telescope. Image: NASA Ultracold refrigeration helps Jefferson Lab scientists peer into the innermost spaces...

  20. Civil War Unplugged | Jefferson Lab

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

    Civil War Unplugged Featured In Jefferson Lab Spring Science Series Lecture NEWPORT NEWS, Va., Feb.12, 2008 - Discover how sounds affected the outcome of battles during the Civil...

  1. Materials Man (Release) | Jefferson Lab

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

    partnerships form the foundation of the ARC. He emphasizes the importance of alliances that have been forged among Jefferson Lab, NASA Langley Research Center and ARC's...

  2. Jefferson Lab Weekly Briefs July 29, 2015 | Jefferson Lab

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

    Jefferson Lab Weekly Briefs July 29, 2015 12 GeV Upgrade The last civil construction task for the 12 GeV CEBAF Upgrade, accelerator tunnel air conditioning, is scheduled to be...

  3. Energy Savings Deeply Rooted At Jefferson Lab | Jefferson Lab

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

    Jefferson Lab has given a new meaning to dirt cheap. The lab uses a geothermal well system to control heating and cooling on two floors of one wing of its main administrative...

  4. Experimental Hall D | Jefferson Lab

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

    top-right bottom-left-corner bottom-right-corner Experimental Hall D Jefferson Lab's fourth experimental hall, known as Hall D, began receiving beam for calibration and...

  5. Earth Week 2008 | Jefferson Lab

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

    Jefferson Lab has given new meaning to dirt cheap. The lab uses a geothermal well system to control heating and cooling on two floors of one wing of its main administrative...

  6. Public Reading Room | Jefferson Lab

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

    A Seven-Cell Niobium Cavity At the heart of Jefferson Lab's accelerator are cavities made of niobium. New seven-cell cavities are being installed in the accelerator as the lab...

  7. Cryogenic system design of 11 GEV/C super high momentum spectrometer superconducting magnets at Jefferson Lab

    SciTech Connect (OSTI)

    Eric Sun, Paul Brindza, Steven Lassister, Mike Fowler

    2012-07-01

    The design of the cryogenic system for the 11 GeV/c Super High Momentum Spectrometer (SHMS) is presented. A description of the cryogenic control reservoir and the cryogenic transfer line is given. Details of the cryogenic control reservoirs, cryogenic transfer lines, and pressure piping are summarized. Code compliance is ensured through following the requirements of the ASME Pressure Vessel Code and Pressure Piping Code. An elastic-plastic-analysis-based combined safety factor approach is proposed to meet the low stress requirement of ASME 2007 Section VIII, Division 2 so that Charpy V-notch (CVN) impact testing can be avoided through analysis. Material toughness requirements in ASME 2007 Section VIII, Division 2 are adopted as CVN impact testing rules of stainless steel 304 piping at 4.2 K and 77 K. A formula-based combined safety factor approach for pressure piping is also proposed to check whether the impact testing can be avoided due to low stress. Analysis and calculation have shown that no CVN impact testing of base metal and heat affected zones is required for the helium reservoir, nitrogen reservoir, and their relevant piping. Total heat loads to liquid helium and liquid nitrogen are studied also. The total heat load to LHe for SHMS is estimated to be 137 W, and the total load to LN2 is calculated to be 420 W.

  8. NOAA Ship THOMAS JEFFERSON S-222 The National Oceanic and

    E-Print Network [OSTI]

    of a plane captured by sidescan sonar Mounted on the hull of the ship and its launches, the multibeam bulbs throughout the ship, low sulfur diesel fuel, 15ppm oily water separators, Halon 1301 aboard

  9. Thomas Jefferson National Accelerator Facility Technologies Available for

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDidDevelopment TopMetathesisSediments andThe StoryLicensing - Energy

  10. SBOT VIRGINIA THOMAS JEFFERSON LAB POC Danny Llyod Telephone

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURINGEnergy BillsNo. 195 -Rob Roberts About Us RobCALIFORNIAPENNSYLVANIATEXAS

  11. 2013 Annual Planning Summary for the Thomas Jefferson Site Office |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p u t y A s s i sEnergy It isRichland|Department of

  12. A LIMITED LIABILITY PARTNERSHIP 1050 Thomas Jefferson Street, NW

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p u t y A s s iof1 of 8 2SeismicStates: Energy

  13. Jefferson Lab | Exploring the Nature of Matter

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

    Model and Activity Volunteers Needed to Help with BEAMS - Jefferson Lab's Science and Math Outreach Program for Students Mon, 08312015 - 11:33am Jefferson Lab to Test Tornado...

  14. Electromagnetic calorimeter for the Heavy Photon Search Experiment at Jefferson Lab

    SciTech Connect (OSTI)

    Buchanan, Emma

    2014-11-01

    The Heavy Photon Search Experiment (HPS) seeks to detect a hypothesised hidden sector boson, the A', predicted to be produced in dark matter decay or annihilation. Theories suggest that the A' couples weakly to electric charge through kinetic mixing, allowing it, as a result, to decay to Standard Matter (SM) lepton pair, which may explain the electron and positron excess recently observed in cosmic rays. Measuring the lepton pair decay of the A' could lead to indirect detection of dark matter. The HPS experiment is a fixed target experiment that will utilize the electron beam produced at the Thomas Jefferson National Accelerator Facility (Jefferson Lab). The detector set-up includes a silicon vertex tracker (SVT) and an Electromagnetic Calorimeter (ECal). The ECal will provide the trigger and detect e+e- pairs and its construction and testing forms the focus of this thesis. The ECal consists of 442 PbWO4} tapered crystals with a length 16cm and a 1.6x1.6cm^2 cross-section, stacked into a rectangular array and are coupled to Large Area APDs and corresponding pre-amplifiers. Supplementary to the ECal is a Light Monitoring System (LMS) consisting of bi-coloured LEDs that will monitor changes in APD gain and crystal transparency due to radiation damage. Before construction of the ECal each of the components were required to be individually tested to determine a number of different characteristics. Irradiation tests were performed on PbWO4 ECal crystals and, as a comparison, one grown by a different manufacturer to determine their radiation hardness. A technique for annealing the radiation damage by optical bleaching, which involves injecting light of various wavelengths into the crystal, was tested using the blue LED from the LMS as a potential candidate. The light yield dependence on temperature was also measured for one of the PbWO4 crystal types. Each APD was individually tested to determine if they functioned correctly and within the requirements of the experiment, then arranged into groups of similar gain at chosen applied voltages, for connection to High Voltage (HV) supplies. Each bi-coloured LED was also tested to determine if they functioned within the specifications of the experiment; including their signal quality at high frequency and their radiation hardness. The HPS crystals were recycled from a previous Jefferson Lab detector, the Inner Calorimeter from CLAS, which needed to be dismantled and reconditioned using various removal and cleaning techniques. The HPS ECal was then constructed in a new formation using a combination of different gluing and construction techniques, and initial functionality tests were performed.

  15. Overview of Nucleon Form Factor Experiments with 12 GeV at Jefferson Lab

    SciTech Connect (OSTI)

    Cisbani, Evaristo [INFN/Sanita, Roma, ITALY

    2014-06-01

    Since the R. Hofstadter pioneering experiments in the '50s, the measurements of the electromagnetic space-like nucleon form factors (FF's) have been a precious source of information for the understanding of the internal structure of the nucleons. In the last 15 years, the polarization transfer experiments at the Thomas Jefferson National Accelerator Facility (JLab) have undermined our view of the mechanism of the electron scattering and renewed critical interest in the FF measurements. In the coming years, JLab, with its upgraded 12 GeV polarized, high intensity, electron beam combined to new targets and readout equipments, will offer unprecedented opportunities to extend the current proton and neutron FF's measurements to higher momentum transfer Q{sup 2} and to improve statistical and uncertainties at lower Q{sup 2}, where the nucleon size can be accurately investigated. The measurements at high Q{sup 2} will provide also new insights on the elusive quark orbital angular momenta, will contribute to constraint two of the nucleon Generalized Parton Distributions that are expected to describe more consistently the nucleon structure, and in general will test the validity of quite a few fundamental nucleon models in a region of transition between perturbative and non perturbative regimes. A selection of the relevant properties of the FF's, and the main results of JLab are shortly reviewed; the new proposed and approved experiments on FF's at JLab are presented addressing some key details, the expected experimental achievements and the new equipment designed for them.

  16. The Heavy Photon Search experiment at Jefferson Laboratory

    SciTech Connect (OSTI)

    De Napoli, Marzio; et. al.,

    2015-06-01

    Many beyond Standard Model theories predict a new massive gauge boson, aka 'dark' or 'heavy photon', directly coupling to hidden sector particles with dark charge. The heavy photon is expected to mix with the Standard Model photon through kinetic mixing and therefore couple weakly to normal charge. The Heavy Photon Search (HPS) experiment will search for the heavy photon at the Thomas Jefferson National Accelerator Facility (JLab), in the mass range 20-1000 MeV/c^2 and coupling to electric charge ?^2 = alpha'/alpha in the range 10^-5 to 10^-10. HPS will look for the e^+e^- decay channel of heavy photons radiated by electron Bremsstrahlung, employing both invariant mass search and detached vertexing techniques. The experiment employs a compact forward spectrometer comprising silicon microstrip detectors for vertexing and tracking and an electromagnetic calorimeter for particle identification and triggering.

  17. An Archaeological Survey for the Vidor Pipeline Project in Jefferson and Orange Counties Texas 

    E-Print Network [OSTI]

    moore, William

    2015-07-28

    An archaeological survey of a proposed natural gas pipeline in east Jefferson and west Orange counties, Texas was performed by Brazos Valley Research Associates (BVRA) on August 8th -10th, 2006. This investigation examined three high probability...

  18. Advisory Committee Recommends Continued Investment in Jefferson...

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

    Recommends Continued Investment in Jefferson Lab This aerial view of the Continuous Electron Beam Accelerator Facility shows the footprint of the accelerator and the...

  19. Advisory Committee Recommends Continued Investment in Jefferson...

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

    Continued Investment in Jefferson Lab fellowship This aerial view of the Continuous Electron Beam Accelerator Facility shows the footprint of the accelerator and the...

  20. CERN Announces Discovery of Different Pentaquarks | Jefferson...

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

    to Membership. India, Japan, the Russian Federation, the United States of America, Turkey, the European Union, JINR and UNESCO have Observer Status. Jefferson Science...

  1. Jefferson Lab | Exploring the Nature of Matter

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

    and Shutdown Days, Jefferson Lab closed Environment, Safety, Health & Quality Safe Turkey Tips from the CDC The Centers for Disease Control and Prevention offer food safety...

  2. Jefferson Lab Visitor's Center - Schedule a Tour

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

    the accelerator, experimental halls and FEL. Tour groups are assigned one radiation dosimeter for every five visitors. 12000 Jefferson Avenue, Newport News, VA 23606 Phone: (757)...

  3. Jefferson Lab: Laser gun to eventually shoot down missiles (Daily...

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

    articles.dailypress.com2011-02-21newsdp-nws-jefferson-lab-201102211jefferson-lab-researchers-free-electron-l... Submitted: Monday, February 21, 2011...

  4. Jefferson Lab: Research Highlights

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

    Digital Self-Excited Loop Engineering Research Highlights Digital Self-Excited Loop The high-Q superconducting cavities being developed at JLab have complicated RF control, with...

  5. Training | Jefferson Lab

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

    their career opportunities within the laboratory. The office provides high-quality education and training services. The office also presents seminars, workshops and other...

  6. 2001 - 01 | Jefferson Lab

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

    Join Forces (Virginian-Pilot) Thu, 01042001 - 12:00am Economy: Send Northern Virginia's High-Tech Overflow Here (Daily Press) Mon, 01012001 - 12:00am Catherine Westfall...

  7. 1999 - 04 | Jefferson Lab

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

    Press) Mon, 04191999 - 11:00pm Taste-Testing a Recipe for the Cosmos Thu, 04011999 - 12:00am ODU Technology Fair Relates High-Tech to Regional Business (The Virginia-Pilot)...

  8. 1998 - 05 | Jefferson Lab

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

    Guy' features Jeff Labs (Daily Press) Wed, 05061998 - 11:00pm ARC Takes College High-Tech (William & Mary News) Mon, 05041998 - 11:00pm 18 Million Research Center is...

  9. 2001 - 03 | Jefferson Lab

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

    Host Teachers' Course (Daily Press) Thu, 03152001 - 12:00am State Should Invest More in High-Tech Economy (Daily Press) Mon, 03122001 - 12:00am Lab's Laser Key to Strong...

  10. 2005 - 12 | Jefferson Lab

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

    industry (Daily Press) Sat, 12102005 - 12:00am Governor proposes 27 million infusion for high-tech industry (Times-Dispatch) Thu, 12012005 - 12:00am Shortsighted: Jeff...

  11. 2005 | Jefferson Lab

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

    industry (Daily Press) Sat, 12102005 - 12:00am Governor proposes 27 million infusion for high-tech industry (Times-Dispatch) Thu, 12012005 - 12:00am Shortsighted: Jeff...

  12. 2015 - 01 | Jefferson Lab

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

    January 2015 Fri, 01302015 - 4:07pm JLab Posts OSHA Form 300 for 2014 Wed, 01212015 - 12:05pm Volunteers Needed to Help With High- and Middle-School Science Bowls on Feb. 7 &...

  13. 2001 - 07 | Jefferson Lab

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

    July 2001 Sun, 07222001 - 11:00pm Lab is Part of Project to Build Neutron Generator (The Virginian-Pilot) Sat, 07142001 - 11:00pm Interests and Advantages: High School, College...

  14. 1999 - 06 | Jefferson Lab

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

    June 1999 Sun, 06271999 - 12:00am Gizmos, Gadgets & Devices - Oh, My (Daily Press) Fri, 06251999 - 12:00am Exhibit: High-Energy Lab Tours for Kids (Daily Press) Tue, 06221999...

  15. The DVCS program at Jefferson Lab

    SciTech Connect (OSTI)

    Niccolai, Silvia

    2014-06-01

    Recent promising results, obtained at Jefferson Lab, on cross sections and asymmetries for DVCS and their link to the Generalized Parton Distributions are the focus of this paper. The extensive experimental program to measure DVCS with the 12-GeV-upgraded CEBAF in three experimental Halls (A, B, C) of Jefferson Lab, will also be presented.

  16. The Jefferson lab FEL driver ERLs

    SciTech Connect (OSTI)

    Douglas, David R.; Tennant, Christopher D.

    2013-11-01

    Jefferson Lab has - for over a decade - been operating high power IR and UV FELs using CW energy recovering linacs based on DC photocathode electron sources and CEBAF SRF technology. These machines have unique combinations of beam quality, power, and operational flexibility, and thus offer significant opportunity for experiments that use low and medium energy (several tens - few hundreds of MeV) electron beams. We will describe the systems and detail their present and near-term (potential) performance. Recent internal-target analysis and validation testing will be discussed, and schemes for single- and two-pass fixed target operation described. An introduction to subsequent discussions of beam quality and upgrade paths to polarized operation/higher energy will be given.

  17. Jefferson Lab phenomenology: selected highlights

    SciTech Connect (OSTI)

    Wolodymyr Melnitchouk

    2005-07-07

    An overview of recent experimental highlights from Jefferson Lab is presented. We review the status of baryon spectroscopy, including the search for pentaquarks, as well as measurements of electromagnetic form factors of the nucleon, featuring the proton G{sub E}/G{sub M} ratio and the determination of the strangeness form factors. In inclusive scattering, we describe recent studies of quark-hadron duality in structure functions in the resonance-scaling transition region, and outline future physics plans at an energy upgraded 12 GeV facility.

  18. Jefferson Utilities | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View NewGuam:onItron (California) JumpJefferson Utilities Jump to:

  19. Nuclear Structure Thomas Neff

    E-Print Network [OSTI]

    Neff, Thomas

    Nuclear Structure in FMD Thomas Neff #12;FMD attributes Fermionic ^Q = C A q1 ··· qA Unitary = ^Q H ^Q ^Q ^Q Nuclear Structure in FMD Thomas Neff­ September 2, 1998 #12;Nuclear Interactions-interactions Nuclear Structure in FMD Thomas Neff­ September 2, 1998 #12;Unitary Correlator How to address the hard

  20. Nuclear Structure Thomas Neff

    E-Print Network [OSTI]

    Neff, Thomas

    Nuclear Structure in FMD Thomas Neff #12; FMD attributes Fermionic #12; #12; â?? Q #11; =C #24; A #24 #11; Nuclear Structure in FMD Thomas Neff-- September 2, 1998 #12; Nuclear Interactions Effective­interactions Nuclear Structure in FMD Thomas Neff-- September 2, 1998 #12; Unitary Correlator How to address the hard

  1. Jefferson Lab scientists set to test germ-killing fabrics | Jefferson...

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

    expected for fire and safety personnel garments. Post- testing will verify that microbes are dead. Jefferson Lab scientists set to test germ-killing fabrics September 26,...

  2. QER- Comment of Thomas Matsuda

    Broader source: Energy.gov [DOE]

    I highly oppose the proposed natural gas pipeline. I oppose the tariff on our electric bill to help pay for Kinder?Morgan's profits. I oppose the disruption of conservation land. I oppose the safety risks to our residents. I oppose the environmental impact. I oppose Kinder?Morgan's record as a business. Respectfully, Thomas Matsuda

  3. Exploring the Nature of Matter | Jefferson Lab

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

    of matter." And you might ask, what do they mean? At Jefferson Laboratory, we scatter electrons like Hofstadter did in the '50s when he explored nuclei. That's why one of our roads...

  4. The Jefferson Lab Trigger Supervisor System

    SciTech Connect (OSTI)

    Ed Jastrzembsi; David Abbott; Graham Heyes; R.W. MacLeod; Carl Timmer; Elliott Wolin

    2000-04-01

    We discuss the design and performance of a Trigger Supervisor System for use in nuclear physics experiments at Jefferson Lab. We also discuss the enhanced features of a new Trigger Supervisor Module now under construction.

  5. LDRD, investing in ourselves | Jefferson Lab

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

    program at Jefferson Lab really started to germinate when we asked Bob McKeown to work on strategic planning for the lab. Given the nature of our funding, with the majority coming...

  6. Jefferson Lab - Detector Support Group (DSG) Staff

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

    Halls Hall A Hall B Hall C Hall D Additional Links Info Jefferson Lab Home Page Detector Support Group (DSG) Home The Detector Support Group (DSG) under the direction of Dr....

  7. Spin in the Neutron | Jefferson Lab

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

    in the Neutron NEWPORT NEWS, Va. - Puzzling out the source of proton and neutron spin is part of the ongoing experimental effort at Jefferson Lab to understand their structure and...

  8. PLC Support Software at Jefferson Lab

    SciTech Connect (OSTI)

    P. Chevtsov; S. Higgins; S. Schaffner; D. Seidman

    2002-10-01

    Several Automation Direct (DirectNet) Programmable Logic Controllers (PLCs) have been integrated into the accelerator control system at Jefferson Lab. The integration is based on new software that consists of three main parts: a PLC driver with a state machine control block, a device support module, and a common serial driver. The components of new software and experience gained with the use of this software for beam dump systems at Jefferson Lab are presented.

  9. The BDX experiment at Jefferson Laboratory

    SciTech Connect (OSTI)

    Celentano, Andrea; et. al.,

    2015-06-01

    The existence of MeV-GeV dark matter (DM) is theoretically well motivated but remarkably unexplored. The Beam Dump eXperiment (BDX) at Jefferson Laboratory aims to investigate this mass range. Dark matter particles will be detected trough scattering on a segmented, plastic scintillator detector placed downstream of the beam-dump at one of the high intensity JLab experimental Halls. The experiment will collect up to 10^22 electrons-on-target (EOT) in a one-year period. For these conditions, BDX is sensitive to the DM-nucleon elastic scattering at the level of a thousand counts per year, and is only limited by cosmogenic backgrounds. The experiment is also sensitive to DM-electron elastic and inelastic scattering, at the level of 10 counts/year. The foreseen signal for these channels is an high-energy (> 100 MeV) electromagnetic shower, with almost no background. The experiment, has been presented in form of a Letter of Intent to the laboratory, receiving positive feedback, and is currently being designed.

  10. Jefferson Lab's Distributed Data Acquisition

    SciTech Connect (OSTI)

    Trent Allison; Thomas Powers

    2006-05-01

    Jefferson Lab's Continuous Electron Beam Accelerator Facility (CEBAF) occasionally experiences fast intermittent beam instabilities that are difficult to isolate and result in downtime. The Distributed Data Acquisition (Dist DAQ) system is being developed to detect and quickly locate such instabilities. It will consist of multiple Ethernet based data acquisition chassis distributed throughout the seven-eights of a mile CEBAF site. Each chassis will monitor various control system signals that are only available locally and/or monitored by systems with small bandwidths that cannot identify fast transients. The chassis will collect data at rates up to 40 Msps in circular buffers that can be frozen and unrolled after an event trigger. These triggers will be derived from signals such as periodic timers or accelerator faults and be distributed via a custom fiber optic event trigger network. This triggering scheme will allow all the data acquisition chassis to be triggered simultaneously and provide a snapshot of relevant CEBAF control signals. The data will then be automatically analyzed for frequency content and transients to determine if and where instabilities exist.

  11. Feb. 9 Event at Jefferson Lab Features Chemistry Demonstrations...

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

    Feb. 9 Event at Jefferson Lab Features Chemistry Demonstrations Set to Pop Music NEWPORT NEWS, Va., Feb. 2, 2010 - Jefferson Lab's Feb. 9 Science Series event will feature members...

  12. JLab Prepares for 2015 Hurricane Season | Jefferson Lab

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

    readyvirginia http:www.vaemergency.govreadyvirginiastayinformedhurricanes Review the information posted to the Jefferson Lab Emergency Management webpage:...

  13. Title of Document: EMITTANCE MEASUREMENTS OF THE JEFFERSON LAB FREE ELECTRON LASER

    E-Print Network [OSTI]

    Anlage, Steven

    to be a quality diagnostic that is especially useful for high brightness electron beams such as Jefferson Labs FEL, such as the ones that power Free Electron Lasers (FEL), require high quality (low emittance) beams for efficient operation. Accurate and reliable beam diagnostics are essential to monitoring beam parameters in order

  14. Detector development for Jefferson Lab's 12GeV Upgrade

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

    Qiang, Yi

    2015-05-01

    Jefferson Lab will soon finish its highly anticipated 12 GeV Upgrade. With doubled maximum energy, Jefferson Lab’s Continuous Electron Beam Accelerator Facility (CEBAF) will enable a new experimental program with substantial discovery potential, addressing important topics in nuclear, hadronic and electroweak physics. In order to take full advantage of the high energy, high luminosity beam, new detectors are being developed, designed and constructed to fit the needs of different physics topics. The paper will give an overview of various new detector technologies to be used for 12 GeV experiments. It will then focus on the development of two solenoid-based spectrometers,more »the GlueX and SoLID spectrometers. The GlueX experiment in Hall D will study the complex properties of gluons through exotic hybrid meson spectroscopy. The GlueX spectrometer, a hermetic detector package designed for spectroscopy and the associated partial wave analysis, is currently in the final stage of construction. Hall A, on the other hand, is developing the SoLID spectrometer to capture the 3D image of the nucleon from semi-inclusive processes and to study the intrinsic properties of quarks through mirror symmetry breaking. Such a spectrometer will have the capability to handle very high event rates while still maintaining a large acceptance in the forward region.« less

  15. Detector development for Jefferson Lab's 12GeV Upgrade

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

    Qiang, Yi [JLAB] (ORCID:0000000170267841)

    2015-05-01

    Jefferson Lab will soon finish its highly anticipated 12 GeV Upgrade. With doubled maximum energy, Jefferson Lab’s Continuous Electron Beam Accelerator Facility (CEBAF) will enable a new experimental program with substantial discovery potential, addressing important topics in nuclear, hadronic and electroweak physics. In order to take full advantage of the high energy, high luminosity beam, new detectors are being developed, designed and constructed to fit the needs of different physics topics. The paper will give an overview of various new detector technologies to be used for 12 GeV experiments. It will then focus on the development of two solenoid-based spectrometers, the GlueX and SoLID spectrometers. The GlueX experiment in Hall D will study the complex properties of gluons through exotic hybrid meson spectroscopy. The GlueX spectrometer, a hermetic detector package designed for spectroscopy and the associated partial wave analysis, is currently in the final stage of construction. Hall A, on the other hand, is developing the SoLID spectrometer to capture the 3D image of the nucleon from semi-inclusive processes and to study the intrinsic properties of quarks through mirror symmetry breaking. Such a spectrometer will have the capability to handle very high event rates while still maintaining a large acceptance in the forward region.

  16. Thomas R. Cech, RNA, and Ribozymes

    Office of Scientific and Technical Information (OSTI)

    Thomas R. Cech, RNA, and Ribozymes Resources with Additional Information Videos Thomas Cech Courtesy of Glenn Asakawa University of Colorado Thomas R. Cech conducted...

  17. Development of a high average current polarized electron source with long cathode operational lifetime

    SciTech Connect (OSTI)

    C. K. Sinclair; P. A. Adderley; B. M. Dunham; J. C. Hansknecht; P. Hartmann; M. Poelker; J. S. Price; P. M. Rutt; W. J. Schneider; M. Steigerwald

    2007-02-01

    Substantially more than half of the electromagnetic nuclear physics experiments conducted at the Continuous Electron Beam Accelerator Facility of the Thomas Jefferson National Accelerator Facility (Jefferson Laboratory) require highly polarized electron beams, often at high average current. Spin-polarized electrons are produced by photoemission from various GaAs-based semiconductor photocathodes, using circularly polarized laser light with photon energy slightly larger than the semiconductor band gap. The photocathodes are prepared by activation of the clean semiconductor surface to negative electron affinity using cesium and oxidation. Historically, in many laboratories worldwide, these photocathodes have had short operational lifetimes at high average current, and have often deteriorated fairly quickly in ultrahigh vacuum even without electron beam delivery. At Jefferson Lab, we have developed a polarized electron source in which the photocathodes degrade exceptionally slowly without electron emission, and in which ion back bombardment is the predominant mechanism limiting the operational lifetime of the cathodes during electron emission. We have reproducibly obtained cathode 1/e dark lifetimes over two years, and 1/e charge density and charge lifetimes during electron beam delivery of over 2?105???C/cm2 and 200 C, respectively. This source is able to support uninterrupted high average current polarized beam delivery to three experimental halls simultaneously for many months at a time. Many of the techniques we report here are directly applicable to the development of GaAs photoemission electron guns to deliver high average current, high brightness unpolarized beams.

  18. Thomas Dixon's War Prayers

    E-Print Network [OSTI]

    Capozzola, Christopher

    2009-01-01

    on pp. 236-37). New Perspectives on “The War-Prayer” Essayson “The War-Prayer” Thomas Dixon, Jr. , Dixon’s Sermons:New Perspectives on “The War-Prayer” Essays on “The War-

  19. Thomas Reddinger Director, Steam

    E-Print Network [OSTI]

    McConnell, Terry

    Thomas Reddinger Director, Steam Operations Steven Richards Assistant Manager of Maintenance & Operations Tim Winterfield Operations Supervisor (Distribution) Deborah Moorhead Office Coordinator III Jacob Donovan- ColinSteam Plant Operator Vincent Massara Steam Plant Operator SU Steam Station/Chilled Water

  20. VEE-0086- In the Matter of Jefferson City Oil Co., Inc.

    Broader source: Energy.gov [DOE]

    On April 18, 2002, Jefferson City Oil Co., Inc. (Jefferson City Oil) filed an Application for Exception with the Office of Hearings and Appeals (OHA) of the Department of Energy (DOE). Jefferson...

  1. Harmonic Lasing Characterization at Jefferson Lab

    SciTech Connect (OSTI)

    Stephen Benson; Michelle D. Shinn

    2006-08-27

    Harmonic lasing is normally suppressed because of lasing at the fundamental wavelength. It can, however, be achieved by using any of several methods that suppress fundamental lasing. In this paper we discuss two methods used at Jefferson Lab. The first is to use the characteristics of dielectric coatings to allow harmonic lasing at cavity lengths longer than the synchronous length for the fundamental. The second is to use a dielectric coating that has little reflectivity at the fundamental. This allows us to directly compare fundamental and harmonic lasing with the same optical resonator and electron beam. We present measurement carried out at Jefferson Lab using the IR Upgrade FEL operating at 0.53, 0.94, 1.04, 1.6, and 2.8 microns in which both schemes are used to produce lasing at both the 3rd and 5th harmonic of the fundamental.

  2. Jefferson Lab Data Acquisition Run Control System

    SciTech Connect (OSTI)

    Vardan Gyurjyan; Carl Timmer; David Abbott; William Heyes; Edward Jastrzembski; David Lawrence; Elliott Wolin

    2004-10-01

    A general overview of the Jefferson Lab data acquisition run control system is presented. This run control system is designed to operate the configuration, control, and monitoring of all Jefferson Lab experiments. It controls data-taking activities by coordinating the operation of DAQ sub-systems, online software components and third-party software such as external slow control systems. The main, unique feature which sets this system apart from conventional systems is its incorporation of intelligent agent concepts. Intelligent agents are autonomous programs which interact with each other through certain protocols on a peer-to-peer level. In this case, the protocols and standards used come from the domain-independent Foundation for Intelligent Physical Agents (FIPA), and the implementation used is the Java Agent Development Framework (JADE). A lightweight, XML/RDF-based language was developed to standardize the description of the run control system for configuration purposes.

  3. Optical Calibration For Jefferson Lab HKS Spectrometer

    E-Print Network [OSTI]

    L. Yuan; L. Tang

    2005-11-04

    In order to accept very forward angle scattering particles, Jefferson Lab HKS experiment uses an on-target zero degree dipole magnet. The usual spectrometer optics calibration procedure has to be modified due to this on-target field. This paper describes a new method to calibrate HKS spectrometer system. The simulation of the calibration procedure shows the required resolution can be achieved from initially inaccurate optical description.

  4. Jefferson Lab Researchers Join "Quantum Diaries" Bloggers | Jefferson...

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

    of the Witwatersrand in Johannesburg, South Africa. She's pursuing a degree in high energy physics and is participating in an experiment to measure Sub-threshold JPsi...

  5. Jefferson Lab Contract to be Awarded to Jefferson Science Associates...

    Energy Savers [EERE]

    federal funding agency of the nation's research programs in high-energy physics, nuclear physics, and fusion energy sciences. Media contact(s): Craig Stevens, (202)...

  6. Young Physicist from Syracuse University Receives Jefferson Lab...

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

    Physicist from Syracuse University Receives Jefferson Lab's 2014 Thesis Prize Beminiwattha Rakitha Beminiwattha NEWPORT NEWS, VA, June 6, 2014 - A young researcher, who worked on...

  7. Jefferson Lab Selects Italian Physicist As Deputy Associate Director...

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

    0Jefferson Lab Selects Italian Physicist As Deputy Associate Director for Nuclear Physics Cynthia Keppel Patrizia Rossi has been named deputy associate director for nuclear physics...

  8. Governor to Join Jefferson Lab in Celebrating Completion of Accelerato...

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

    Governor to Join Jefferson Lab in Celebrating Completion of Accelerator Upgrade Construction CEBAF Race Track This aerial photo shows the outline of the racetrack-shaped CEBAF...

  9. NASA Scientist Discusses Nanotube Advances Feb. 9 at Jefferson...

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

    Nanotube Advances Feb. 9 at Jefferson Lab NEWPORT NEWS, Va., Feb. 2, 2011 - Mike Smith, a NASA Langley Research Center scientist, will present a lecture titled "20th...

  10. JLab Scientist Develops Portrait of a Gremlin | Jefferson Lab

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

    microscope. When an expensive accelerator component designed for the International Linear Collider failed to perform as expected, Jefferson Lab scientists set out to find...

  11. While the LHC Hunts Higgs, the Jefferson Accelerator Looks to...

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

    popsci.comsciencearticle2012-04while-lhc-hunts-higgs-jefferson-accelerator-looks-illuminate-dark-photons Submitted: Tuesday, April 3...

  12. ILC Treatment of JLab Cavity Garners Exciting Result | Jefferson...

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

    Cavity Garners Exciting Result Accelerator cavitiy HG-6 was electropolished with a recipe developed by ILC research and custom-tailored here at Jefferson Lab. Accelerator...

  13. Jefferson Lab gets $75M in stimulus funds (Inside Business) ...

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

    https:www.jlab.orgnewsarticlesjefferson-lab-gets-75m-stimulus-funds-inside-business Jefferson Lab gets 75M in stimulus funds MICHAEL SCHWARTZ - Staff Writer Inside...

  14. Maintenance & Cleaning Firm Earns Jefferson Lab's Small Business...

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

    Cleaning Firm Earns Jefferson Lab's Small Business Award for 2013 Prestige award Prestige Maintenance staff (left to right) Sandra Coltrain, Operations Managers John Harmon and Tom...

  15. Swapan Chattopadhyay Named as AAAS Fellow | Jefferson Lab

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

    Chattopadhyay click for hi-resolution image Swapan Chattopadhyay, Jefferson Lab's Associate Director for Accelerators, now a 2005 Fellow of the American Association for the...

  16. Occ. Med. Offers Staff Flu Vaccines by Appointment | Jefferson...

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

    Occ. Med. Offers Staff Flu Vaccines by Appointment Occupational Medicine is now accepting appointments from Jefferson Lab staff for Influenza vaccinations. If you would like to be...

  17. Imager Spots and Samples Tiny Tumors | Jefferson Lab

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

    at Jefferson Lab, West Virginia University and the University of Maryland School of Medicine. The PEMPET system is designed for detecting and guiding the biopsies of suspicious...

  18. Jefferson Lab Project Team Receives Department of Energy Award...

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

    Secretarial Achievement Award presented to the Jefferson Lab Technology and Engineering Development Facility project management team on March 26 at the DOE Project Management...

  19. Education Secretary Morris, Senator Norment visit Jefferson Lab...

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

    met with Virginia teachers participating in a Department of Energy, summer science and math enrichment program at Jefferson Lab. Here he meets teacher Pamela Rheinlander, from...

  20. Former BEAMS student revisits Jefferson Lab; sets goal on career...

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

    first groups of students to participate in Jefferson Lab's Becoming Enthusiastic About Math and Science (BEAMS) program are graduating from college and entering the workforce....

  1. JLab Meadows Offer Environmental Benefits and Beauty | Jefferson...

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

    Environmental Benefits and Beauty Just two years after Facilities Management and Logistics staff proposed seeding about 6.5 acres of the Jefferson Lab campus with wildflowers,...

  2. A syncrhronized FIR/VUV light source at Jefferson Lab

    SciTech Connect (OSTI)

    Shinn, Michelle D.

    2013-05-31

    This slide show presents an introduction to Free-Electron Lasers (FELs) and what makes the JLab FELs unique. Ways of exploring the nature of matter with the FEL are shown, including applications in the THz, IR, UV, and VUV. The Jefferson Lab FEL Facility is unique in its high average brightness in the THz, and IR -- VUV spectral regions and Sub ps-pulses at MHz repetition rates. With an installation of a rebuilt 'F100' cryomodule the linac energy will increase to > 150MeV. This will permit lasing further into the UV and extend VUV. With the swap of our CEBAF-style cryounit for an improved booster, we could lase in the VUV. Addition of a wiggler and optical cavity slightly canted from the UV beamline would allow simultaneous lasing of UV and THz for high E-field 2 color experiments.

  3. August 15, 2001 Dr. Thomas B. Kirk

    E-Print Network [OSTI]

    McDonald, Kirk

    August 15, 2001 Dr. Thomas B. Kirk Associate Director for High Energy and Nuclear Physics Building occurs depends on the energy of the neutrino. A good energy for neutrino beams generated in this geologic medium can require significant rock stabilization and dewatering to maintain a safe and stable

  4. Snow! Good Job! | Jefferson Lab

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

    next to our village was marked with ten-foot-high painted telegraph poles. Living in Switzerland, we fell in love with snow; on the mountains of course. Downtown Geneva didn't...

  5. Transport Equations Thomas Hillen

    E-Print Network [OSTI]

    Hillen, Thomas

    Transport Equations Thomas Hillen supported by NSERC University of Alberta, Edmonton Transport V , V compact and symmetric. Transport Equations ­ p.2/33 #12;Directed Movement The equation pt(t, x of v. Transport Equations ­ p.3/33 #12;With Directional Changes µ: turning rate. T(v, v ): probability

  6. A SYNCHRONIZED FIR/VUV LIGHT SOURCE AT JEFFERSON LAB

    SciTech Connect (OSTI)

    Stephen Benson, David Douglas, George Neil, Michelle D. Shinn, Gwyn Williams

    2012-07-01

    We describe a dual free-electron laser (FEL) configuration on the UV Demo FEL at Jefferson Lab that allows simultaneous lasing at FIR/THz and UV wavelengths. The FIR/THz source would be an FEL oscillator with a short wiggler providing nearly diffraction-limited pulses with pulse energy exceeding 50 microJoules. The FIR source would use the exhaust beam from a UVFEL. The coherent harmonics in the VUV from the UVFEL are out-coupled through a hole. The FIR source uses a shorter resonator with either hole or edge coupling to provide very high power FIR pulses. Simulations indicate excel-lent spectral brightness in the FIR region with over 100 W/cm-1 output.

  7. Jefferson, Iowa: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View NewGuam:onItron (California) JumpJefferson Utilities Jump

  8. SLAC-Built Detector Prepares for Life at Jefferson Lab (SLAC...

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

    https:news.slac.stanford.eduimageslac-built-detector-prepares-life-jefferson-lab Submitted: Tuesday, April 17...

  9. PC/104 Embedded IOCs at Jefferson Lab

    SciTech Connect (OSTI)

    Jianxun Yan, Trent Allison, Sue Witherspoon, Anthony Cuffe

    2009-10-01

    Jefferson Lab has developed embedded IOCs based on PC/104 single board computers (SBC) for low level control systems. The PC/104 IOCs run EPICS on top of the RTEMS operating system. Two types of control system configurations are used in different applications, PC/104 SBC with commercial PC/104 I/O cards and PC/104 SBC with custom designed FPGA-based boards. RTEMS was built with CEXP shell to run on the PC/104 SBC. CEXP shell provides the function of dynamic object loading, which is similar to the widely used VxWorks operating system. Standard software configurations were setup for PC/104 IOC application development to provide a familiar format for new projects as well as ease the conversion of applications from VME based IOCs to PC/104 IOCs. Many new projects at Jefferson Lab are going to employ PC/104 SBCs as IOCs and some applications have already been running them for accelerator operations. The PC/104 - RTEMS IOC provides a free open source Real-Time Operating System (RTOS), low cost/maintenance, easily installed/ configured, flexible, and reliable solution for accelerator control and 12GeV Upgrade projects.

  10. St.ThomasMore Prestigious

    E-Print Network [OSTI]

    Saskatchewan, University of

    St.ThomasMore College Studious Prestigious Adventurous Curious Ambitious Ingenious #12;Discover each of our students to be challenged and transformed by their university education. Our hope

  11. phenix.refine: crystallographic structure refinement in PHENIX Pavel V. Afonine, Ralf W. Grosse-Kunstleve, Peter H. Zwart, Thomas C. Terwilliger, Nigel

    E-Print Network [OSTI]

    -Kunstleve, Peter H. Zwart, Thomas C. Terwilliger, Nigel W. Moriarty & Paul D. Adams A combination of highly

  12. Virtual Compton Scattering: Results from Jefferson Lab

    SciTech Connect (OSTI)

    L. Van Hoorebeke

    2003-05-01

    Virtual Compton Scattering o013 the proton has been studied at Q 2 -values of 1:0 and 1:9 (GeV=c) 2 in Hall A at the Thomas Je013erson National Accelerator Facility (JLab). Data were taken below and above the pion production threshold as well as in the resonance region. Results obtained below pion threshold at Q 2 = 1:0 (GeV=c) 2 are presented in this paper.

  13. FEBRUARY 14, 2011 NOAA Ship Thomas Jefferson approaches the Deepwater Horizon

    E-Print Network [OSTI]

    the successful implementation of NOAA's satellite program. Energy is everyone's business. Solar, wind, and wave the country need climate information to make choices about what crops to plant and when to plant them. City energy generation are closely tied to weather and climate trends ­ and therefore new research

  14. Thomas Jefferson National Accelerator Facility | U.S. DOE Office of Science

    Office of Science (SC) Website

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe23-24, 2011Science (SC) RedefiningSign Up|Texas

  15. Thomas Jefferson National Accelerator Facility | U.S. DOE Office of Science

    Office of Science (SC) Website

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe23-24, 2011Science (SC) RedefiningSign Up|Texas(SC)

  16. Thomas Jefferson National Accelerator Facility | U.S. DOE Office of Science

    Office of Science (SC) Website

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe23-24, 2011Science (SC) RedefiningSign

  17. Thomas Jefferson National Accelerator Facility | U.S. DOE Office of Science

    Office of Science (SC) Website

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe23-24, 2011Science (SC) RedefiningSign(SC)

  18. Thomas Jefferson National Accelerator Facility | U.S. DOE Office of Science

    Office of Science (SC) Website

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe 26thIWalter H.4Office of ScienceTeresa(SC) Third DOE(SC)

  19. Thomas Jefferson National Accelerator Facility | U.S. DOE Office of Science

    Office of Science (SC) Website

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe 26thIWalter H.4Office of ScienceTeresa(SC) Third

  20. Thomas Jefferson National Accelerator Facility | U.S. DOE Office of Science

    Office of Science (SC) Website

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe 26thIWalter H.4Office of ScienceTeresa(SC) Third(SC)

  1. Thomas Jefferson Site Office EA / EIS | U.S. DOE Office of Science (SC)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S.Week DayDr. JeffreyThermalš,, 20106,5,8,30,(SC)

  2. Labs at-a-Glance: Thomas Jefferson National Accelerator Facility | U.S. DOE

    Office of Science (SC) Website

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe 26thI D- 6 0 4 2 rz

  3. Automatic Fracture Reduction Thomas Albrecht and Thomas Vetter

    E-Print Network [OSTI]

    Vetter, Thomas

    Automatic Fracture Reduction Thomas Albrecht and Thomas Vetter University of Basel Abstract. We segmented from CT scans. The result of this virtual fracture reduction is intended to be used an operation plan. We propose to achieve automatic fracture reduction by fitting the bone fragments

  4. Two-For-One Confounds Physicists | Jefferson Lab

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

    Spectrometer, or CLAS, in Jefferson Lab's Experimental Hall B was used to measure electrons during the experiment. Ordinarily, getting two for the price of one is a great deal....

  5. New Measurement Explores Fine Details of Proton Structure | Jefferson...

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

    contained 1,744 lead glass bars, such as the one shown, for detecting the scattered electrons. A collaboration of scientists is probing deep inside the proton at Jefferson Lab by...

  6. Jefferson Lab Website Offers Preparation Help For Virginia Standards...

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

    the return of warm weather and blooming flowers, another sure sign of spring is increased usage of the U.S. Department of Energy's Jefferson Lab Science Education website....

  7. Jefferson Lab Website Offers Help For Virginia Standards of Learning...

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

    the return of warm weather and blooming flowers, another sure sign of spring is increased usage of the U.S. Department of Energy's Jefferson Lab Science Education website....

  8. ILC Electron Source Gets Help from JLab | Jefferson Lab

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

    electrode The cathode electrode is being put to the test in Jefferson Lab's electron gun test stand. This work is part of a research project on the ILC's electron source, which...

  9. 'Comic Book Physics' examined at Jefferson Lab's March 25 Science...

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

    Comic book physics Even superheroes must obey the laws of physics - or do they? Artwork: Kim Dylla 'Comic Book Physics' examined at Jefferson Lab's March 25 Science Series event...

  10. Physics Nobel winner David Gross gives public lecture at Jefferson...

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

    Physics Nobel winner David Gross gives public lecture at Jefferson Lab on June 12 (Monday) June 6, 2006 David Gross David Gross, Nobel Prize recipient and lecturer David Gross,...

  11. Jefferson Lab begins 2003 Spring Science Series with popular...

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

    Hidden Worlds: Hunting for Quarks in Ordinary Matter, by Timothy Paul Smith Timothy P. Smith will be available at Jefferson Lab to sign copies of his new book, "Hidden Worlds:...

  12. Local Company Purchases William & Mary Land Near Jefferson Lab...

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

    articles.dailypress.com2010-06-14newsdp-nws-wm-land-20100614-11jefferson-lab-mary-real-estate-foundation-new... Submitted: Tuesday, June 15, 2010 - 12...

  13. Illustrious Visitors Good Hosts Real Celebrity | Jefferson Lab

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

    of ICFA, the International Committee on Future Accelerators, asked for a couple of pictures of Jefferson Lab in the snow. He is preparing a report that will include the ICFA...

  14. Marshall P. Thomas Judy Lieberman

    E-Print Network [OSTI]

    Lieberman, Judy

    Marshall P. Thomas Judy Lieberman Live or let die: posttranscriptional gene regulation in cell stress and cell death Authors' address Marshall P. Thomas1 , Judy Lieberman1 1 Program in Cellular events play a pivotal role in regulating the initial rapid response to cell stress. A swift, almost glo

  15. High-power beam injectors for 100 KW free-electron lasers

    SciTech Connect (OSTI)

    Todd, A. M.; Wood R. L.; Bluem, H.; Young, L. M.; Wiseman, M.; Schultheiss, T.; Schrage, D. L.; Russell, S. J.; Rode, C. H.; Rimmer, R.; Nguyen, D. C.; Kelley, J. P.; Kurennoy, S.; wood, r

    2003-01-01

    A key technology issue on the path to high-power FEL operation is the demonstration of reliable, high-brightness, high-power injector operation. We describe two ongoing programs to produce 100 mA injectors as drivers for 100 kW free-electron lasers. In one approach, in collaboration with the Thomas Jefferson National Accelerator Facility, we are fabricating a 750 MHz superconducting RF cryomodule that will be integrated with a room-temperature DC photocathode gun and tested at the Laboratory. In the other approach, in collaboration with Los Alamos National Laboratory, a high-current 700 MHz, normal-conducting, RF photoinjector is being designed and will undergo thermal management testing at the Laboratory. We describe the design, the projected performance and the status of both injectors.

  16. Innovative Energy-Saving Process Earns Jefferson Lab Team a 2007...

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

    Innovative Energy-Saving Process Earns Jefferson Lab Team a 2007 White House Award June 12, 2007 Group The Jefferson Lab engineers who received a White House Closing the Circle...

  17. The Forward Tagger facility for low Q{sup 2} experiments at Jefferson Laboratory

    SciTech Connect (OSTI)

    Celentano, Andrea

    2014-06-01

    Low Q{sup 2} electron scattering is an efficient and competitive experimental technique to provide intense, quasi-real photon beams, with a high degree of linear polarization. Such a technique will be employed in Hall B at Jefferson Laboratory by having the primary 11?GeV electron beam from the CEBAF accelerator impinging on a liquid hydrogen target. Low-angle scattered electrons will be detected with the new Forward Tagger facility, while the final state hadrons will be measured with the CLAS12 spectrometer. The unique combination of the two detectors will permit to carry out a broad physics program, and to explore new possibilities for high quality physics.

  18. Larry Thomas From: Jony Singh

    E-Print Network [OSTI]

    Fernandez, Eduardo

    1 Larry Thomas From: Jony Singh Sent: Thursday, August 28, 2014 3:24 PM To: security Subject: FW: MAIL BOX From: Nancy Parent Sent: Thursday, August 28, 2014 3:21 PM To: Jony Singh Subject: FW

  19. High Performance Computing in

    E-Print Network [OSTI]

    Stamatakis, Alexandros

    High Performance Computing in Bioinformatics Thomas Ludwig (t.ludwig@computer.org) Ruprecht PART I: High Performance Computing Thomas Ludwig PART II: HPC Computing in Bioinformatics Alexandros #12;© Thomas Ludwig, Alexandros Stamatakis, GCB'04 3 PART I High Performance Computing Introduction

  20. The 12 GeV Energy Upgrade at Jefferson Laboratory

    SciTech Connect (OSTI)

    Pilat, Fulvia C.

    2012-09-01

    Two new cryomodules and an extensive upgrade of the bending magnets at Jefferson Lab has been recently completed in preparation for the full energy upgrade in about one year. Jefferson Laboratory has undertaken a major upgrade of its flagship facility, the CW re-circulating CEBAF linac, with the goal of doubling the linac energy to 12 GeV. I will discuss here the main scope and timeline of the upgrade and report on recent accomplishments and the present status. I will then discuss in more detail the core of the upgrade, the new additional C100 cryomodules, their production, tests and recent successful performance. I will then conclude by looking at the future plans of Jefferson Laboratory, from the commissioning and operations of the 12 GeV CEBAF to the design of the MEIC electron ion collider.

  1. Hadronic Multi-Particle Final State Measurements with CLAS at Jefferson Lab

    E-Print Network [OSTI]

    W. K. Brooks

    2003-11-04

    Precision measurements in the neutrino sector are becoming increasingly feasible due to the development of relatively high-rate experimental capabilities. These important developments command renewed attention to the systematic corrections needed to interpret the data. Hadronic multi-particle final state measurements made using CLAS at Jefferson Lab, together with a broad theoretical effort that links electro-nucleus and neutrino-nucleus data, will address this problem, and will elucidate long-standing problems in intermediate energy nuclear physics. This new work will ultimately enable precision determinations of fundamental quantities such as the neutrino mixing matrix elements in detailed studies of neutrino oscillations.

  2. Encyclopedia of Molecular Biology Thomas E. Creighton

    E-Print Network [OSTI]

    Oster, George

    Encyclopedia of Molecular Biology Thomas E. Creighton ISBN: 0-471-15302-8 ATP Synthase: Two rotary be divided into two operational regions denoted Encyclopedia of Molecular Biology, 4 Volume Set Thomas E

  3. 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.

  4. Compton polarimeter for Qweak Experiment at Jefferson Laboratory

    E-Print Network [OSTI]

    Zou, David

    2011-01-01

    The Qweak experiment at Jefferson Lab aims to make the first precision measurement of the proton's weak charge, QP = 1 - 4 sin 2 9w at Q2 = 0.026GeV 2 . Given the precision goals in the Qweak experiment, the electron beam ...

  5. Thomas Veselka | Argonne National Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S.Week DayDr. JeffreyThermalš,,Thomas Peterka ComputerThomas

  6. High precision measurement of the proton elastic form factor ratio at low Q²

    E-Print Network [OSTI]

    Zhan, Xiaohui

    2010-01-01

    Experiment E08-007 measured the proton elastic form factor ratio [mu]GE/GM in the range of Q2 = 0.3-0.7(GeV/c)2 by recoil polarimetry. Data were taken in 2008 at the Thomas Jefferson National Accelerator Facility in Virginia, ...

  7. Performance characteristics of Jefferson Lab's new SRF infrastructure

    SciTech Connect (OSTI)

    Reece, Charles E.; Denny, Philip; Reilly, Anthony

    2013-09-01

    In the past two years, Jefferson Lab has reconfigured and renovated its SRF support infrastructure as part of the Technology and Engineering Development Facility project, TEDF. The most significant changes are in the cleanroom and chemistry facilities. We report the initial characterization data on the new ultra-pure water systems, cleanroom facilities, describe the reconfiguration of existing facilities and also opportunities for flexible growth presented by the new arrangement.

  8. Soils of Bell, Jefferson, Smith, Taylor and Webb Counties. 

    E-Print Network [OSTI]

    Fraps, G. S. (George Stronach)

    1922-01-01

    AGRICULTURAL EXPERIMENT STATION AGRICULTURAL AND MECHANICAL COLLEGE OF TEXAS W. B. BIZZELL, President BULLETIN NO . 301 SEPTEMBER, 1922 DIVISION OF CHEMISTRY SOILS OF BELL, JEFFERSON, SMITH, ?TAYLOR AND WEBB COUNTIES B. YOUNGBLOOD, DIRECTOR_, COLLEGE... ONES, A . M., Chief; Sheep and Goat Investigations R M Sherwood, B. S., Poultry Husbandman G. R. V?/ ARnEN, B. S., Animal Husbandman in Charge of Swine Investigations J. L. Lusn, Ph. D., Animalllushandman (genetics) L. M. MuRPHY, Wool Specialist...

  9. Parity Viola?on at Jefferson Lab Kent Paschke

    E-Print Network [OSTI]

    and Peskin, PRL50 (1983) Consider orf1 f1 f2 f2 f1 f2 f1 f2 Lf1f2 = i,j=L,R (g12 i j )2 2 ij ¯f1i µf1i ¯f2j Jefferson Lab · sub-part per billion statistical reach and systematic control · sub-1% normalization probing hadron structure and electroweak physics For future program: · Pioneering · Proton Form

  10. Jefferson Lab Invites Classes, Groups to 2008-2009 Physics Fests...

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

    a Physics Fest may wish to download the Physics Fest Classroom Activity Pack from JLab's Physics Fest website. The pdf document contains general information about Jefferson Lab,...

  11. Media invited to Jefferson Lab prior to April 16 Open House,...

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

    Jefferson Lab's Open House, please visit: http:www.jlab.orgopenhouse http:datacenter.atouchoftech.com:9156newsreleasesjefferson-lab-plans-open-house-saturday-april-16...

  12. Lasers Used to Make First Boron-Nitride Nanotube Yarn | Jefferson...

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

    with Jefferson Lab's Free-Electron Laser and later perfected using a commercial welding laser. In this technique, the laser beam strikes a target inside a chamber filled...

  13. NASA and DOE Jefferson Lab Agree to Explore Mutual Research Projects...

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

    effectiveness and eliminating costs of duplication. In the "nanotechnology" example, NASA Langley will contribute its expertise in structures and materials and Jefferson Lab...

  14. Jefferson Lab Hosts 20 Teams for Middle School Science Bowl on...

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

    testing their mental skills at the Department of Energy's Virginia Regional Middle School Science Bowl taking place at Jefferson Lab on Saturday, March 1. Twenty teams,...

  15. Jefferson Lab Signs Contract Wth SensL For Silicon Photomultiplier...

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

    articlesjefferson-lab-signs-contract-wth-sensl-silicon-photomultiplier-technology-photonics-o... Jefferson Lab Signs Contract Wth SensL For Silicon Photomultiplier Technology...

  16. Getting to the starting line | Jefferson Lab

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

    for Proposals to further develop the technology of the high-power, infrared free-electron laser. Prior to this, high-power infrared FEL development work was primarily done at...

  17. VEE-0032- In the Matter of Thomas Oil Company

    Office of Energy Efficiency and Renewable Energy (EERE)

    On September 13, 1996, Thomas Oil Company (Thomas Oil) filed an Application for Exception with the Office of Hearings and Appeals (OHA) of the Department of Energy (DOE). In its application, Thomas...

  18. Thomas Roser Community Advisory Council

    E-Print Network [OSTI]

    Homes, Christopher C.

    for RHIC #12;2 RHIC NSRL LINAC Booster AGS Tandems STAR 6:00 o'clock PHENIX 8:00 o'clock 10:00 o'clock Jet Proton beam in AGS: July 1960 (50 years) Ion beam in AGS: 1987 AGS Booster: 1991 RHIC Construction: 1993Thomas Roser Community Advisory Council October 14, 2010 Collisions of Uranium at RHIC Discoveries

  19. Everything is a nail | Jefferson Lab

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

    to the potential for high-power accelerators. This makes it possible to imagine using accelerator driven sub-critical reactor systems for nuclear power generation using, for...

  20. Science and Our Future | Jefferson Lab

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

    Yesterday morning, it was my pleasure to give a welcome to the 2013 Virginia Middle School Science Bowl. As you know, we have hosted both the High School and Middle School...

  1. 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.

  2. Dynamically polarized target for the gp2 and GpE experiments at Jefferson Lab

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

    Pierce, J.; Maxwell, J.; Badman, T.; Brock, J.; Carlin, C.; Crabb, D. G.; Day, D.; Keith, C. D.; Kvaltine, N.; Meekins, D. G.; et al

    2013-12-16

    We describe a dynamically polarized target that has been utilized for two electron scattering experiments in Hall A at Jefferson Lab. The primary components of the target are a new, high cooling power 4 He evaporation refrigerator, and a re-purposed, superconducting split-coil magnet. It has been used to polarize protons in irradiated NH3 at a temperature of 1 K and at fields of 2.5 and 5.0 Tesla. The performance of the target material in the electron beam under these conditions will be discussed. The maximum polarizations of 28% and 95% were obtained at those fields, respectively. To satisfy the requirementsmore »of both experiments, the magnet had to be routinely rotated between angles of 0, 6, and 90 degrees with respect to the incident electron beam. This was accomplished using a new rotating vacuum seal which permits rotations to be performed in only a few minutes.« less

  3. 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.

  4. Jefferson County, Georgia: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas: Energy ResourcesOrder at 8,OpenKentucky:Jeanerette BiomassJefferson County, Georgia:

  5. Jefferson County, Idaho: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas: Energy ResourcesOrder at 8,OpenKentucky:Jeanerette BiomassJefferson County,

  6. Jefferson County, Illinois: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas: Energy ResourcesOrder at 8,OpenKentucky:Jeanerette BiomassJefferson County,Illinois:

  7. Jefferson County, Indiana: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas: Energy ResourcesOrder at 8,OpenKentucky:Jeanerette BiomassJefferson

  8. Jefferson County, Iowa: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas: Energy ResourcesOrder at 8,OpenKentucky:Jeanerette BiomassJeffersonIowa: Energy

  9. Jefferson County, Kansas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas: Energy ResourcesOrder at 8,OpenKentucky:Jeanerette BiomassJeffersonIowa:

  10. Jefferson County, Kentucky: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas: Energy ResourcesOrder at 8,OpenKentucky:Jeanerette BiomassJeffersonIowa:Kentucky:

  11. Port Jefferson, New York: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland:NPIProtectio1975) |Texas: EnergyOklahoma:Ewen, New York: EnergyJefferson, New

  12. NREL: Energy Analysis - Thomas Jenkin

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on771/6/14Recent PublicationsNicholas DiOrioSadieThomas Jenkin Photo

  13. Thomas Peterka | Argonne National Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S.Week DayDr. JeffreyThermalš,,Thomas Peterka Computer

  14. Thomas Wallner | Argonne National Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S.Week DayDr. JeffreyThermalš,,Thomas Peterka

  15. Thomas Wallner | Argonne National Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S.Week DayDr. JeffreyThermalš,,Thomas PeterkaWallner Section

  16. RF Power Upgrade for CEBAF at Jefferson Laboratory

    SciTech Connect (OSTI)

    Andrew Kimber,Richard Nelson

    2011-03-01

    Jefferson Laboratory (JLab) is currently upgrading the 6GeV Continuous Electron Beam Accelerator Facility (CEBAF) to 12GeV. As part of the upgrade, RF systems will be added, bringing the total from 340 to 420. Existing RF systems can provide up to 6.5 kW of CW RF at 1497 MHZ. The 80 new systems will provide increased RF power of up to 13 kW CW each. Built around a newly designed and higher efficiency 13 kW klystron developed for JLab by L-3 Communications, each new RF chain is a completely revamped system using hardware different than our present installations. This paper will discuss the main components of the new systems including the 13 kW klystron, waveguide isolator, and HV power supply using switch-mode technology. Methodology for selection of the various components and results of initial testing will also be addressed. Notice: Authored by Jefferson Science Associates, LLC under U.S. DOE Contract No. DE-AC05-06OR23177. The U.S. Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce this manuscript for U.S. Government purposes.

  17. Clarke, Thomas James (`Tom') by James Quinn

    E-Print Network [OSTI]

    . Thomas was educated in St Patrick's national school, Dungannon, where he became a monitor, and he always ingenious ways of communicating together and forged strong and lasting friendships. Clarke's account of his

  18. Poisoning the Kad Network Thomas Locher1

    E-Print Network [OSTI]

    Poisoning the Kad Network Thomas Locher1 , David Mysicka1 , Stefan Schmid2 , and Roger Wattenhofer1 all messages. Additionally, we briefly discuss how our network poisoning attacks can also be used

  19. Operator algebras and topology Thomas Schick1

    E-Print Network [OSTI]

    Schick, Thomas

    Operator algebras and topology Thomas Schick1 Last compiled November 29, 2001; last edited November 29, 2001 or later 1 e-mail: schick@uni-math.gwdg.de www: http://uni-math.gwdg.de/schick Fax: ++49

  20. Operator algebras and topology Thomas Schick1

    E-Print Network [OSTI]

    Schick, Thomas

    Operator algebras and topology Thomas Schick1 Last-mail: schick@uni-math.gwdg.de www: http://uni-math.gwdg.de/schick Fax: ++49 -251/83 38370 #12; 2

  1. RoboCup 2004 Thomas Rofer

    E-Print Network [OSTI]

    Stryk, Oskar von

    RoboCup 2004 Thomas R¨ofer Tim Laue Center for Computing Technology, FB 3 Informatik, Universit Stefan Uhrig Fachgebiet Simulation und Systemoptimierung, FB 20 Informatik, Technische Universit

  2. Thomas Van Dam Principal, Nichols Consulting Engineers

    E-Print Network [OSTI]

    Thomas Van Dam Principal, Nichols Consulting Engineers Transportation Research Group TVanDam-cost, widespread availability, versatility, and hallmark longevity, hydraulic cement concrete (HCC) is the most in a variety of applications, including bridges, hydraulic structures, retaining walls, barriers, curbs

  3. Jefferson Lab injector development for next generation parity violation experiments

    SciTech Connect (OSTI)

    J. Grames, J. Hansknect, M. Poelker, R. Suleiman

    2011-05-01

    To meet the challenging requirements of next generation parity violation experiments at Jefferson Lab, the Center for Injectors and Sources is working on improving the parity-quality of the electron beam. These improvements include new electron photogun design and fast helicity reversal of the Pockels Cell. We proposed and designed a new scheme for slow helicity reversal using a Wien Filter and two Solenoids. This slow reversal complements the insertable half-wave plate reversal of the laser-light polarization by reversing the electron beam polarization at the injector while maintaining a constant accelerator configuration. For position feedback, fast air-core magnets located in the injector were commissioned and a new scheme for charge feedback is planned.

  4. ELECTROSTATIC MODELING OF THE JEFFERSON LABORATORY INVERTED CERAMIC GUN

    SciTech Connect (OSTI)

    P. Evtushenko ,F.E. Hannon, C. Hernandez-Garcia

    2010-05-01

    Jefferson Laboratory (JLab) is currently developing a new 500kV DC electron gun for future use with the FEL. The design consists of two inverted ceramics which support a central cathode electrode. This layout allows for a load-lock system to be located behind the gun chamber. The electrostatic geometry of the gun has been designed to minimize surface electric field gradients and also to provide some transverse focusing to the electron beam during transit between the cathode and anode. This paper discusses the electrode design philosophy and presents the results of electrostatic simulations. The electric field information obtained through modeling was used with particle tracking codes to predict the effects on the electron beam.

  5. RICH detector at Jefferson Lab, design, performance and physics results

    SciTech Connect (OSTI)

    E. Cisbani; S. Colilli; F. Cusanno; S. Frullani; R. Frantoni; F. Garibaldi; F. Giuliani; M. Gricia; M. Lucentini; M.L. Magliozzi; L. Pierangeli; F. Santavenere; P. Veneroni; G.M. Urciuoli; M. Iodice; G. De Cataldo; R. De Leo; L. Lagamba; S. Marrone; E. Nappi; V. Paticchio; R. Feuerbach; D. Higinbotham; J. Lerose; B. Kross; R. Michaels; Y. Qiang; B. Reitz; J. Segal; B. Wojtsekhowski; C. Zorn; A. Acha; P. Markowitz; C.C. Chang; H. Breuer

    2006-04-01

    Since 2004 the hadron spectrometer of Hall A at Jefferson Lab is equipped with a proximity focusing RICH. This detector is capable of identify kaon from pion and proton with an angular separation starting from 6 sigma at 2 GeV/c. The RICH design is conceptually similar to the ALICE HMPID RICH; it uses a C6F14 liquid radiator and a 300 nm layer of CsI deposited on the cathode pad plane of an asymmetric MWPC. The RICH has operated for the Hypernuclear Spectroscopy Experiment E94-107, which took data in the last two years. Design details and performance along with first physics results from the hypernuclear experiment are shortly presented.

  6. The Heavy Photon Search experiment at Jefferson Laboratory

    SciTech Connect (OSTI)

    Celentano, Andrea [INFN-GENOVA

    2014-11-01

    The Heavy Photon Search experiment (HPS) at Jefferson Laboratory will search for a new U(1) massive gauge boson, or "heavy-photon", mediator of a new fundamental interaction, called "dark-force", that couples to ordinary photons through kinetic mixing. HPS has sensitivity in the mass range 20 MeV – 1 GeV and coupling epsilon2 between 10?5 and 10?10. The HPS experiment will look for the e+e? decay of the heavy photon, by resonance search and detached vertexing, in an electron beam fixed target experiment. HPS will use a compact forward spectrometer, which employs silicon microstrip detectors for vertexing and tracking, and a PbWO4 electromagnetic calorimeter for energy measurement and fast triggering.

  7. Study of CSR Effects in the Jefferson Laboratory FEL Driver

    SciTech Connect (OSTI)

    Hall, C. C.; Biedron, S.; Burleson, Theodore A.; Milton, Stephen V.; Morin, Auralee L.; Benson, Stephen V.; Douglas, David R.; Evtushenko, Pavel E.; Hannon, Fay E.; Li, Rui; Tennant, Christopher D.; Zhang, Shukui; Carlsten, Bruce E.; Lewellen, John W.

    2013-08-01

    In a recent experiment conducted on the Jefferson Laboratory IR FEL driver the effects of Coherent Synchrotron Radiation (CSR) on beam quality were studied. The primary goal of this work was to explore CSR output and effect on the beam with variation of the bunch compression in the IR chicane. This experiment also provides a valuable opportunity to benchmark existing CSR models in a system that may not be fully represented by a 1-D CSR model. Here we present results from this experiment and compare to initial simulations of CSR in the magnetic compression chicane of the machine. Finally, we touch upon the possibility for CSR induced microbunching gain in the magnetic compression chicane, and show that parameters in the machine are such that it should be thoroughly damped.

  8. The 6 GeV TMD Program at Jefferson Lab

    SciTech Connect (OSTI)

    Puckett, Andrew J.

    2015-01-01

    The study of the transverse momentum dependent parton distributions (TMDs) of the nucleon in semi-inclusive deep-inelastic scattering (SIDIS) has emerged as one of the major physics motivations driving the experimental program using the upgraded 11 GeV electron beam at Jefferson Lab’s Continuous Electron Beam Accelerator Facility (CEBAF). The accelerator construction phase of the CEBAF upgrade is essentially complete and commissioning of the accelerator has begun as of April, 2014. As the new era of CEBAF operations begins, it is appropriate to review the body of published and forthcoming results on TMDs from the 6 GeV era of CEBAF operations, discuss what has been learned, and discuss the key challenges and opportunities for the 11 GeV SIDIS program of CEBAF.

  9. Jefferson Lab to Mark the End of CEBAF 6 GeV Operations on May...

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

    18 CEBAFAerial.jpg Jefferson Lab will officially end 6 GeV operations of the Continuous Electron Beam Accelerator Facility during a short ceremony planned for May 18 in the...

  10. https://www.jlab.org/integrated-rss en Jefferson Lab to Test...

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

    integrated-rss en Jefferson Lab to Test its Tornado Warning Siren at 10:30 a.m. on Friday, Dec. 4 https:www.jlab.orgnewsreleasesjefferson-lab-test-its-tornado-warning-siren-10...

  11. Jefferson Lab to Test Tornado Warning Siren at 10:30 a.m. on...

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

    Dec. 4 Jefferson Lab's tornado warning siren will undergo its monthly operational test at 10:30 a.m. on Friday, Dec. 4. Depending on weather conditions at the time of the test, the...

  12. Jefferson Lab to Test Tornado Warning Siren at 10:30 a.m. on...

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

    Oct. 2 Jefferson Lab's tornado warning siren will undergo its monthly operational test at 10:30 a.m. on Friday, Oct. 2. Depending on weather conditions at the time of the test, the...

  13. Jefferson Lab to Test Tornado Warning Siren at 10:30 a.m. on...

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

    Nov. 6 Jefferson Lab's tornado warning siren will undergo its monthly operational test at 10:30 a.m. on Friday, Nov. 6. Depending on weather conditions at the time of the test, the...

  14. Jefferson Lab to Test Tornado Warning Siren at 10:30 a.m. on...

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

    Sept. 4 Jefferson Lab's tornado warning siren will undergo its monthly operational test at 10:30 a.m. on Friday, Sept. 4. Depending on weather conditions at the time of the test,...

  15. Jefferson Park : case study of a public housing project in transformation

    E-Print Network [OSTI]

    Powers, David Thomas

    1984-01-01

    This study focuses on the redevelopment of Jefferson Park, a public housing project in Cambridge, Massachusetts. The work establishes the historical political, social, and physical context in which that redevelopment takes ...

  16. CEBAF Center F Wing Closed on Saturday, June 27 | Jefferson Lab

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

    delivery of Jefferson Lab's mission. If you have any questions or concerns about this outage, contact Michele Solaroli at solaroli@jlab.org or x7751. Submitted: Wednesday, June...

  17. Jefferson Lab Activities Group Invites Young and Not-So-Young...

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

    Holiday Events Holiday Party on Dec. 12 for Jefferson Lab Children and the Young at Heart The JAG Holiday Party is scheduled for Saturday, Dec. 12, 10 a.m.-1 p.m. in the CEBAF...

  18. DRIVER ACCELERATOR DESIGN FOR THE 10 KW UPGRADE OF THE JEFFERSON LAB IR FEL

    E-Print Network [OSTI]

    DRIVER ACCELERATOR DESIGN FOR THE 10 KW UPGRADE OF THE JEFFERSON LAB IR FEL D. Douglas, S. V, Newport News, VA23606, USA Abstract An upgrade of the Jefferson Lab IR FEL [1] is now un- der construction. It will provide 10 kW output light power in a wavelength range of 2­10 µm. The FEL will be driven by a modest

  19. Building Shape Models from Lousy Data Marcel Luthi, Thomas Albrecht, and Thomas Vetter

    E-Print Network [OSTI]

    Vetter, Thomas

    Building Shape Models from Lousy Data Marcel L¨uthi, Thomas Albrecht, and Thomas Vetter Department information. We propose a method for building a statistical shape model from such "lousy" data sets propose a method for building statistical shape models from data sets which can include incomplete

  20. One Approach of Data-Mining for Product Driven Philippe Thomas. Andr Thomas.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    of planning and production control activities. Among Manufacturing Plan- ning and Control Systems, MRP SystemsOne Approach of Data-Mining for Product Driven Systems Philippe Thomas. André Thomas. Centre de of this chapter is to highlight some new Product Driven Systems (PDS) issues. Effectively, several possibilities

  1. Missouri’s Favorite Son: A Thomas Hart Benton Story

    E-Print Network [OSTI]

    Christiansen, Bethany

    2011-04-01

    Missouri’s Favorite Son: A Thomas Hart Benton Story Bethany Christiansen The graphic novel, “Missouri’s Favorite Son: A Thomas Hart Benton Story,” depicts a brief, imaginary episode in which a woman and her son encounter the artist Thomas Hart..., and to better understand ourselves as humans. BIBLIOGRAPHY Broun, Elizabeth, Douglas Hyland, and Marylin Stokstad. Benton’s Bentons: Selections from The Thomas Hart Benton and Rita P. Benton Trusts. Lawrence, Kansas: University of Kansas, 1980...

  2. Thomas Lewiner Complexos de Morse discretos e geometricos

    E-Print Network [OSTI]

    Lewiner, Thomas (Thomas Lewiner)

    Matem´atica para a Petrobras. Ficha Catalogr´afica Lewiner, Thomas Complexos de Morse discretos e geom

  3. The Thomas Green Clemson Award for Excellence Nomination Form

    E-Print Network [OSTI]

    Stuart, Steven J.

    The Thomas Green Clemson Award for Excellence Nomination Form The Thomas Green Clemson Award been recognized at the University level. To nominate an individual for the Thomas Green Clemson Award, please do the following: 1. Complete this form by identifying the nominee, certifying that you have

  4. Integrality of L2-Betti numbers Thomas Schick*

    E-Print Network [OSTI]

    Schick, Thomas

    Integrality of L2-Betti numbers Thomas Schick algebraic question:__________________ *e-mail: thomas.schick@math.uni-muenster.de www: http Thomas Schick 1.2 Definition. Let Z ae ae Q be an additive subgroup of the rationals, and K

  5. Experimental status DVCS e p ---> e p gamma and e n ---> e n gamma at Jefferson Lab-Hall A

    SciTech Connect (OSTI)

    C. Ferdi

    2004-06-02

    The experiments E00-110 and E03-106 [1] propose to measure the Deep Virtual Compton Scattering process (DVCS) ep --> ep{gamma} and en --> en{gamma} in Hall A at Jefferson Lab with a 5.75 GeV longitudinally polarized electron beam. The exclusivity requires the High Resolution Spectrometer of the Hall A for the detection of the scattered electron ({Delta}p/p = 10^-4), an electromagnetic calorimeter for the detection of the real photon ({sigma}/E<5%) and a scintillator array for the detection of the third particle. A 1 GHz sampling system allows one to deal with pile-up as expected from running detectors at small angles and high luminosity L = 10^37 cm^-2 s^-1. We will describe the apparatus and will explain the method to extract GPDs and evaluate the contributions from higher twists from the measurement of the cross-section difference.

  6. Precision Compton polarimetry for the QWeak experiment at Jefferson Lab

    SciTech Connect (OSTI)

    Wouter Deconinck

    2011-10-01

    The Q Weak experiment, scheduled to run in 2010-2012 in Hall C at Jefferson Lab, will measure the parity-violating asymmetry in elastic electron-proton scattering at 1.1 GeV to determine the weak charge of the proton, Q{sub Weak}{sup p} = 1 - 4 sin{sup 2} {theta}{sub W}. The dominant experimental systematic uncertainty will be the knowledge of the electron beam polarization. With a new Compton polarimeter we aim to measure the beam polarization with a statistical precision of 1% in one hour and a systematic uncertainty of 1%. A low-gain Fabry-Perot cavity laser system provides the circularly polarized photons. The scattered electrons are detected in radiation-hard diamond strip detectors, and form the basis for a coincidence trigger using distributed logic boards. The photon detector uses a fast, undoped CsI crystal with simultaneous sampling and integrating read-out. Coincident events are used to cross-calibrate the photon and electron detectors.

  7. Thomas R. Cech, RNA, and Ribozymes

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S.Week DayDr. JeffreyThermalš,,Thomas Peterka ComputerThomas R.

  8. Performance Testing of Jefferson Lab 12 GeV Helium Screw Compressors

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

    Knudsen, P.; Ganni, V.; Dixon, K.; Norton, R.; Creel, J.

    2015-08-10

    Oil injected screw compressors have essentially superseded all other types of compressors in modern helium refrigeration systems due to their large displacement capacity, reliability, minimal vibration, and capability of handling helium's high heat of compression. At the present state of compressor system designs for helium refrigeration systems, typically two-thirds of the lost input power is due to the compression system. It is important to understand the isothermal and volumetric efficiencies of these machines to help properly design the compression system to match the refrigeration process. It is also important to identify those primary compressor skid exergetic loss mechanisms which maymore »be reduced, thereby offering the possibility of significantly reducing the input power to helium refrigeration processes which are extremely energy intensive. This paper summarizes the results collected during the commissioning of the new compressor system for Jefferson Lab's (JLab's) 12 GeV upgrade. The compressor skid packages were designed by JLab and built to print by industry. They incorporate a number of modifications not typical of helium screw compressor packages and most importantly allow a very wide range of operation so that JLab's patented Floating Pressure Process can be fully utilized. This paper also summarizes key features of the skid design that allow this process and facilitate the maintenance and reliability of these helium compressor systems.« less

  9. Study of Double Spin Asymmetries in Inclusive ep Scattering at Jefferson Lab

    SciTech Connect (OSTI)

    Kang, Hoyoung [Seoul National University, Seoul, Korea

    2014-08-01

    The spin structure of the proton has been investigated in the high Bjorken x and low momentum transfer Q^2 region. We used Jefferson Lab's polarized electron beam, a polarized target, and a spectrometer to get both the parallel and perpendicular spin asymmetries Apar and Aperp. These asymmetries produced the physics asymmetries A_1 and A_2 and spin structure functions g_1 and g_2. We found Q^2 dependences of the asymmetries at resonance region and higher-twist effects. Our result increases the available data on the proton spin structure, especially at resonance region with low Q^2. Moreover, A_2 and g_2 data show clear Q^2 evolution, comparing with RSS and SANE-BETA. Negative resonance in A_2 data needs to be examined by theory. It can be an indication of very negative transverse-longitudinal interference contribution at W ~ 1.3 GeV. Higher twist effect appears at the low Q^2 of 1.9 GeV^2, although it is less significant than lower Q^2 data of RSS. Twist03 matrix element d_2 was calculated using our asymmetry fits evaluation at Q^2 – 1.9 GeV^2. D-bar_2 = -0.0087±0.0014 was obtained by integrating 0.47 ? x ? 0.87.

  10. Reaction-Diffusion Patterns in Smart Sensor Thomas C. Henderson, Ramya Venkataraman and Gyounghwa Choikim

    E-Print Network [OSTI]

    Henderson, Thomas C.

    Reaction-Diffusion Patterns in Smart Sensor Networks Thomas C. Henderson, Ramya Venkataraman and Gyounghwa Choikim School of Computing and Dept of Bioengineering University of Utah Salt lake City, Utah formation to support high-level tasks in smart sensor networks (S-Nets). This has led us to explore various

  11. New Methods for the Visualization of Electric Power System Information Thomas J. Overbye

    E-Print Network [OSTI]

    New Methods for the Visualization of Electric Power System Information Thomas J. Overbye University-Time Information System). Thus the means to achieving the goal of lower costs is to superimpose a highly@powerworld.com Abstract One area in need of new research in information visualization is the operation and analysis

  12. Nonergodic behavior of interacting bosons in harmonic traps Thomas Papenbrock and George F. Bertsch

    E-Print Network [OSTI]

    Bertsch George F.

    Nonergodic behavior of interacting bosons in harmonic traps Thomas Papenbrock and George F. Bertsch of the ground-state occupation number. In the high-energy regime of classical physics we find nonergodic behavior for modest numbers of trapped particles. We give two conditions that assure the ergodic behavior

  13. Beam control in multiphoton microscopy using a MEMS spatial light Thomas Bifano*, Hari Paudel

    E-Print Network [OSTI]

    Bifano, Thomas

    . The combination of MPM and a fast microelectromechanical spatial light modulator (MEMS SLM) offers a compellingBeam control in multiphoton microscopy using a MEMS spatial light modulator Thomas Bifano*, Hari instrument. S-MPM's imaging advantages are enabled by a high-speed, microelectromechanical spatial light

  14. SIMPLE COMPLETE BOOLEAN ALGEBRAS Thomas Jech1

    E-Print Network [OSTI]

    Jech, Thomas

    SIMPLE COMPLETE BOOLEAN ALGEBRAS Thomas Jech1 and Saharon Shelah2,3 The Pennsylvania State there exists a simple complete Boolean algebra with generators. 1. Introduction. A complete Boolean algebra is simple if it is atomless and has no non- trivial proper atomless complete subalgebra. The problem

  15. Brain Evolution Relevant to P. Thomas Schoenemann

    E-Print Network [OSTI]

    Schoenemann, P. Thomas

    Brain Evolution Relevant to Language P. Thomas Schoenemann James Madison University 1. Introduction The evolution of language obviously presupposes a brain that made language possible. At the same time, given of the human brain must have been language. Given that language is at least as much a cultural

  16. SILICON--1999 681 By Thomas S. Jones

    E-Print Network [OSTI]

    SILICON--1999 681 SILICON By Thomas S. Jones Domestic survey data and tables were prepared by Lisa in the foreign trade statistics. For 1999, an overall domestic silicon production of 423,000 metric tons (t led to ongoing legal actions. In the first part of 1999, of three domestic producers involved in civil

  17. Manufacturing Thomas W. Eagar, Guest Editor

    E-Print Network [OSTI]

    Eagar, Thomas W.

    Materials Manufacturing Thomas W. Eagar, Guest Editor The bt·h.n-ior of succl'ssful manufac- tunn;imos., t·m·ironment for mate- nab manufacturing changes, so too does our ml·a~un· ol matt·rials performance~·(·vt·r. as shown by Figure 1, there are sen·ral additional dimensions to perfor- mann·. In particular, successful

  18. Sisl: Several Interfaces, Single Logic Thomas Ballz

    E-Print Network [OSTI]

    Läufer, Konstantin

    Sisl: Several Interfaces, Single Logic Thomas Ballz Christopher Colby+ Peter Danielseny Lalita such as information and e-commerce services are becoming increasingly more flexible in the types of user interfaces they support. These interfaces incorporate automatic speech recognition and natural language understanding

  19. The Proton Form Factor Ratio Measurements at Jefferson Lab

    SciTech Connect (OSTI)

    Punjabi, Vina A. [Norfolk State University, Norfolk, VA (United States); Perdrisat, Charles F. [William and Mary College, Williamsburg, VA (United States)

    2014-03-01

    The ratio of the proton form factors, G{sub Ep}/G{sub Mp}, has been measured from Q{sup 2} of 0.5 GeV{sup 2} to 8.5 GeV{sup 2}, at the Jefferson Laboratory, using the polarization transfer method. This ratio is extracted directly from the measured ratio of the transverse and longitudinal polarization components of the recoiling proton in elastic electron-proton scattering. The discovery that the proton form factor ratio measured in these experiments decreases approximately linearly with four-momentum transfer, Q{sup 2}, for values above #25;~1 GeV{sup 2}, is one of the most significant results to come out of JLab. These results have had a large impact on progress in hadronic physics; and have required a significant rethinking of nucleon structure. The increasingly common use of the double-polarization technique to measure the nucleon form factors, in the last 15 years, has resulted in a dramatic improvement of the quality of all four nucleon electromagnetic form factors, G{sub Ep}, G{sub Mp}, G{sub En} and G{sub Mn}. There is an approved experiment at JLab, GEP(V), to continue the ratio measurements to 12 GeV{sup 2}. A dedicated experimental setup, the Super Bigbite Spectrometer (SBS), will be built for this purpose. It will be equipped with a focal plane polarimeter to measure the polarization of the recoil protons. The scattered electrons will be detected in an electromagnetic calorimeter. In this presentation, I will review the status of the proton elastic electromagnetic form factors and discuss a number of theoretical approaches to describe nucleon form factors.

  20. SPIN Effects, QCD, and Jefferson Laboratory with 12 GeV electrons

    SciTech Connect (OSTI)

    Prokudin, Alexey

    2013-11-01

    QCD and Spin physics are playing important role in our understanding of hadron structure. I will give a short overview of origin of hadron structure in QCD and highlight modern understanding of the subject. Jefferson Laboratory is undergoing an upgrade that will increase the energy of electron beam up to 12 GeV. JLab is one of the leading facilities in nuclear physics studies and once operational in 2015 JLab 12 will be crucial for future of nuclear physics. I will briefly discuss future studies in four experimental halls of Jefferson Lab.

  1. Jefferson Lab | Jefferson Lab

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory of rare Kaonforsupernovae model (Journal About DOEPlantFriday, 08ISCNews item

  2. Media Advisory: News Media invited to cover Feb. 10 Virginia...

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

    several high schools join the competition for the first time, and as the Thomas Jefferson High School for Science & Technology team works to defend its five-year run as the...

  3. Physics Opportunities with the 12 GeV Upgrade at Jefferson Lab

    SciTech Connect (OSTI)

    Dudek, Jozef; Essig, Rouven; Kumar, Krishna; Meyer, Curtis; McKeown, Robert; Meziani, Zein Eddine; Miller, Gerald A; Pennington, Michael; Richards, David; Weinstein, Larry

    2012-08-01

    We are at the dawn of a new era in the study of hadronic nuclear physics. The non-Abelian nature of Quantum Chromodynamics (QCD) and the resulting strong coupling at low energies represent a significant challenge to nuclear and particle physicists. The last decade has seen the development of new theoretical and experimental tools to quantitatively study the nature of confinement and the structure of hadrons comprised of light quarks and gluons. Together these will allow both the spectrum and the structure of hadrons to be elucidated in unprecedented detail. Exotic mesons that result from excitation of the gluon field will be explored. Multidimensional images of hadrons with great promise to reveal the dynamics of the key underlying degrees of freedom will be produced. In particular, these multidimensional distributions open a new window on the elusive spin content of the nucleon through observables that are directly related to the orbital angular momenta of quarks and gluons. Moreover, computational techniques in Lattice QCD now promise to provide insightful and quantitative predictions that can be meaningfully confronted with, and elucidated by, forthcoming experimental data. In addition, the development of extremely high intensity, highly polarized and extraordinarily stable beams of electrons provides innovative opportunities for probing (and extending) the Standard Model, both through parity violation studies and searches for new particles. Thus the 12 GeV upgrade of the Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab will enable a new experimental program with substantial discovery potential to address these and other important topics in nuclear, hadronic and electroweak physics.

  4. Depleted uranium human health risk assessment, Jefferson Proving Ground, Indiana

    SciTech Connect (OSTI)

    Ebinger, M.H.; Hansen, W.R.

    1994-04-29

    The risk to human health from fragments of depleted uranium (DU) at Jefferson Proving Ground (JPG) was estimated using two types of ecosystem pathway models. A steady-state, model of the JPG area was developed to examine the effects of DU in soils, water, and vegetation on deer that were hunted and consumed by humans. The RESRAD code was also used to estimate the effects of farming the impact area and consuming the products derived from the farm. The steady-state model showed that minimal doses to humans are expected from consumption of deer that inhabit the impact area. Median values for doses to humans range from about 1 mrem ({plus_minus}2.4) to 0.04 mrem ({plus_minus}0.13) and translate to less than 1 {times} 10{sup {minus}6} detriments (excess cancers) in the population. Monte Carlo simulation of the steady-state model was used to derive the probability distributions from which the median values were drawn. Sensitivity analyses of the steady-state model showed that the amount of DU in airborne dust and, therefore, the amount of DU on the vegetation surface, controlled the amount of DU ingested by deer and by humans. Human doses from the RESRAD estimates ranged from less than 1 mrem/y to about 6.5 mrem/y in a hunting scenario and subsistence fanning scenario, respectively. The human doses exceeded the 100 mrem/y dose limit when drinking water for the farming scenario was obtained from the on-site aquifer that was presumably contaminated with DU. The two farming scenarios were unrealistic land uses because the additional risk to humans due to unexploded ordnance in the impact area was not figured into the risk estimate. The doses estimated with RESRAD translated to less than 1 {times} 10{sup {minus}6} detriments to about 1 {times} 10{sup {minus}3} detriments. The higher risks were associated only with the farming scenario in which drinking water was obtained on-site.

  5. Future Measurements of the Nucleon Elastic Electromagnetic Form Factors at Jefferson Lab

    E-Print Network [OSTI]

    Gilfoyle, Jerry

    Future Measurements of the Nucleon Elastic Electromagnetic Form Factors at Jefferson Lab G.P.Gilfoyle Future Form Factor Measurements ­ p. 1/3 #12;Scientific Motivation Nucleon elastic electromagnetic form violation experiments. G.P.Gilfoyle Future Form Factor Measurements ­ p. 2/3 #12;Scientific Motivation

  6. Future Measurements of the Nucleon Elastic Electromagnetic Form Factors at Jefferson Lab

    E-Print Network [OSTI]

    Gilfoyle, Jerry

    Future Measurements of the Nucleon Elastic Electromagnetic Form Factors at Jefferson Lab G, Hadron2014 Future Form Factor Measurements at JLab 1 / 26 #12;Scientific Motivation - What We Hope the hadronic picture to QCD. Jerry Gilfoyle, Hadron2014 Future Form Factor Measurements at JLab 2 / 26 #12

  7. Top 8 Things You Didn't Know About Thomas Alva Edison | Department...

    Energy Savers [EERE]

    Top 8 Things You Didn't Know About Thomas Alva Edison Top 8 Things You Didn't Know About Thomas Alva Edison November 18, 2013 - 3:00pm Addthis Thomas A. Edison in his "Invention...

  8. The trace on the K-theory of group C* -algebras Thomas Schick*

    E-Print Network [OSTI]

    The trace on the K-theory of group C* -algebras Thomas Schick! ~1 (where ___________________________* e-mail: thomas.schick@math.uni-muenster.de www: http 1 #12; 2 Thomas Schick 1 is the neutral

  9. MEMORANDUM FROM: THOMAS E. BROWN, DIRECTOR OFFICE OF CONTRACT...

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

    ,2008 MEMORANDUM FROM: THOMAS E. BROWN, DIRECTOR OFFICE OF CONTRACT MANAGEMENT OFFICE OF PROCUREMENT AND ASSISTANCE MANAGEMENT SUBJECT: Contract Change Order Administration of...

  10. Heavy Quarks, QCD, and Effective Field Theory Thomas Mehen 72...

    Office of Scientific and Technical Information (OSTI)

    Heavy Quarks, QCD, and Effective Field Theory Thomas Mehen 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS Heavy Quarks, Quarkonium,...

  11. VBH-0005- In the Matter of Thomas Dwyer

    Broader source: Energy.gov [DOE]

    This Decision involves a whistleblower complaint filed by Thomas Dwyer under the Department of Energy's (DOE) Contractor Employee Protection Program. From January 1996 to October 1997, Mr. Dwyer...

  12. Museum security and the Thomas Crown Affair.

    SciTech Connect (OSTI)

    Michaud, E. C.

    2010-01-01

    Over the years, I've daydreamed about stealing a Vermeer, a Picasso, or Rembrandt. It tickles me, as much as watching the reboot of The Thomas Crown Affair. Why is it, do you suppose, so much fun to think about stealing a world renowned piece off the wall of a major metropolitan museum? Is it the romantic thoughts of getting away with it, walking past infrared detectors, and pressure sensors ala Indiana Jones with the sack of sand to remove the idol without triggering the security system? Is it the idea of snatching items with such fantastic prices, where the romance of possessing an item of such value is less intoxicating than selling it to a private collector for it to never be seen again? I suspect others share my daydreams as they watch theater or hear of a brazen daylight heist at museums around the world, or from private collections. Though when reality sets in, the mind of the security professional kicks in. How could one do it, why would one do it, what should you do once it's done? The main issue a thief confronts when acquiring unique goods is how to process or fence them. They become very difficult to sell because they are one-of-a-kind, easy to identify, and could lead to the people involved with the theft. The whole issue of museum security takes up an ironic twist when one considers the secretive British street artist 'Banksy'. Banksy has made a name for himself by brazenly putting up interesting pieces of art in broad daylight (though many critics don't consider his work to be art) on building walls, rooftops, or even museums. I bring him up for a interesting take on what may become a trend in museum security. In March of 2005, Banksy snuck a piece of his called 'Vandalized Oil Painting' into the Brooklyn Museum's Great Historical Painting Wing, plus 3 other pieces into major museums in New York. Within several days, 2 paintings had been torn down, but 2 stayed up much longer. In his home country of the UK, a unauthorized piece he created and placed in the British Museum known as 'Early Man Goes to Market' received different treatment when placed inside the walls. It was adopted into the permanent collection! I like his story because it's so counter-intuitive. Who would have thought that modern museum security might involve preventing people not just from stealing art, but from sneaking 'unauthorized' art into museums? What is next, tampering with the archive records in order to make it look like the piece in question has always been there? To learn more about museum security, I interviewed multiple experts in the field. It turns out that the glamorous lifestyle of Thomas Crown is not particularly relevant. In fact, usually nobody can point to a Mr. Big of the underworld coordinating thefts, though some organized crime families have been known to use stolen art as black market chips to trade. The common consensus among experts in the field of art theft is that, instead of most high-value pieces being stolen by outsiders with a blue print in hand and rappelling from a ceiling skylight, in reality, 80 percent of art thefts involve insiders or accomplices that execute the crime over a period of time while working or volunteering in the museum. Indeed, according to FBI statistics, between 70 and 80 percent of all solved art theft cases involve insider participation of some kind, yet according to Tom Cremers of the Musuem Security Network, 'Having been involved in risk assessments in over hundreds of museums over the past ten years, it is quite astonishing how rarely the risk of insider participation is discussed.' In regards to the insider threat, a museum is not much different from any corporation or other organization. There are directors, employees, interns, and cleaning staff (very often outsourced), security guards (again outsourced, typically with very high turnover rates). Unlike corporations, most museums also have volunteer staff, docents, and authorized visiting scholars. All these people can potentially take advantage of their position, or to be exploited by a clever attacker on the outside or insid

  13. Boosting Deuteron Polarization in HD Targets: Experience of moving spins between H and D with RF methods during the E06-101 experiment at Jefferson Lab

    SciTech Connect (OSTI)

    Wei, Xiangdong; Bass, Christopher; D'Angelo, Annalisa; Deur, Alexandre; Dezern, Gary; Kageya, Tsuneo; Laine, Vivien; Lowry, Michael; Sandorfi, Andrew; Teachey, Robert; Wang, Haipeng; Whisnant, Charles

    2014-06-01

    Solid HDice targets are polarized by bringing the HD crystal to thermal equilibrium at low temperature and high magnetic field, typically 10-20 mK and 15 Tesla, at Jefferson Lab. In this regime, due to its smaller magnetic moment, the resulting polarization for D is always at least three times smaller than for H. The controlled amount of polarizing catalysts, o-H2 and p-D2, used in the process of reaching a frozen-spin state, further limit the maximum achievable D polarization. Nonetheless, H and D polarizations can be transferred from one to the other by connecting the H and D sub-states of the HD system with RF. In a large target, the RF power needed for such transitions is effectively limited by non-uniformities in the RF field. High efficiency transfers can require substantial RF power levels, and a tuned-RF circuit is needed to prevent large temperature excursions of the holding cryostat. In this paper, we compare the advantages and limitations of two different RF transfer methods to increase D polarization, Forbidden Adiabatic and Saturated Forbidden RF Transitions. The experience with the HD targets used during the recently completed E06-101 experiment in Hall-B of Jefferson Lab is discussed.

  14. 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.

  15. Hall A Annual Report 2013

    E-Print Network [OSTI]

    M. M. Dalton; K. Allada; K. Aniol; W. Boeglin; A. Camsonne; E. Chudakov; M. Cummings; D. Flay; M. Friedman; O. Glamazdin; J. Gomez; C. Keppel; H. P. Khanal; R. Lindgren; E. Long; R. Michaels; M. Mihovilovi?; C. Muñoz Camacho; S. Nanda; R. Pomatsalyuk; S. Riordan; S. Širca; C. Smith; P. Solvignon; N. F. Sparveris; V. Vereshchaka; X. Yan; Z. Ye; Y. X. Zhao; Jefferson Lab Hall A Collaboration

    2014-02-27

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

  16. A Tony Thomas-Inspired Guide to INSPIRE

    SciTech Connect (OSTI)

    O'Connell, Heath B.; /Fermilab

    2010-04-01

    The SPIRES database was created in the late 1960s to catalogue the high energy physics preprints received by the SLAC Library. In the early 1990s it became the first database on the web and the first website outside of Europe. Although indispensible to the HEP community, its aging software infrastructure is becoming a serious liability. In a joint project involving CERN, DESY, Fermilab and SLAC, a new database, INSPIRE, is being created to replace SPIRES using CERN's modern, open-source Invenio database software. INSPIRE will maintain the content and functionality of SPIRES plus many new features. I describe this evolution from the birth of SPIRES to the current day, noting that the career of Tony Thomas spans this timeline.

  17. Introduction to R Thomas Evans

    E-Print Network [OSTI]

    Limburg, Karin E.

    ://www.simonqueenborough.com/eeob.html What is R? · "...computer language that allows the user to program algorithms and use tools that have been programmed by other." · Open source programming software that can perform high end statistical Learning Curves of Popular Stats Programs Minitab SAS SPSS R Skill Time spent So why not use R then? · Two

  18. Towards a New Execution Model for HPC Clouds Thomas Sterling

    E-Print Network [OSTI]

    Lumsdaine, Andrew

    Towards a New Execution Model for HPC Clouds Thomas Sterling Center for Research in Extreme Scale an alternative paradigm for bringing Clouds more closely aligned to Science, Technology, Engineering Execution Model for HPC Clouds Thomas Sterling 1. Introduction Even as HPC is transiting the pan

  19. -INDEX THEOREMS, KK-THEORY, AND CONNECTIONS THOMAS SCHICK

    E-Print Network [OSTI]

    Schick, Thomas

    L2 -INDEX THEOREMS, KK-THEORY, AND CONNECTIONS THOMAS SCHICK Abstract. Let M be a compact manifold, Mishchenko-Fomenko index theorem, trace. 1 #12;2 THOMAS SCHICK commutative C -algebra (e.g. the complex to the study of manifolds with metrics of positive scalar curvature are obtained by Hanke and Schick in [6

  20. Tuning manifold harmonics filters Thomas Lewiner, Thales Vieira, Alex Bordignon,

    E-Print Network [OSTI]

    Díaz, Lorenzo J.

    Tuning manifold harmonics filters Thomas Lewiner, Thales Vieira, Alex Bordignon, Allyson Cabral : Thomas Lewiner, Thales Vieira, Alex Bordignon, Allyson Cabral, Clarissa Marques, Jo~ao Paix~ao, Lis Cust CABRAL1 , CLARISSA MARQUES1 , JO ~AO PAIX ~AO1 , LIS CUST ´ODIO1 , MARCOS LAGE1 , MARIA ANDRADE1 , RENATA

  1. Thomas selected as American Chemical Society Fellow

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired Solar FuelTechnologyTel:February 25, 2015 |7 D I S C L APrincipalThomas

  2. Thomas Moore | Photosynthetic Antenna Research Center

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S.Week DayDr. JeffreyThermalš,, 20106,5,8,30,(SC)Thomas

  3. Depositional environment of Oligocene Hackberry sandstones, Hilde brandt Bayou area, Jefferson County, Texas 

    E-Print Network [OSTI]

    Powers, Brian Kennett

    1980-01-01

    interpreted as of turbidity-flow origin. The embayment 1s filled with a dominant shale section wh1ch contains microfauna believed to represent bathyal depths. , Cores retrieved from fields in Jefferson County, southeast Texas, were studied to examine... as arenites and later altered by diagenesis. Microfauna recovered from shale clasts within sandstone packages indicate deposition in an outer nerit1c or upper bathyal environment. Lower Hackberry isopach and net sand maps illustrate major, dip- trend1ng...

  4. Measurements of the Deuteron Elastic Structure Function A(Q{sup 2}) at Jefferson Lab

    SciTech Connect (OSTI)

    Gerassimos Petratos

    1999-06-01

    Measurements of the deuteron elastic structure function A(Q{sup 2}) for 0.7 {le} Q{sup 2} {le} 6.0 (GeV/c){sup 2} are reported. The experiment performed elastic electron-deuteron scattering in coincidence, using the Hall A Facility of Jefferson Laboratory. The data are compared to theoretical models based on the impulse approximation with the inclusion of meson-exchange currents, and to predictions of quark dimensional scaling and perturbative quantum chromodynamics.

  5. An Optical ``Janus'' Device for Integrated Photonics By Thomas Zentgraf, Jason Valentine, Nicholas Tapia, Jensen Li, and

    E-Print Network [OSTI]

    Simaan, Nabil

    An Optical ``Janus'' Device for Integrated Photonics By Thomas Zentgraf, Jason Valentine, Nicholas of multi-functional optical meta-elements which could be a key ingredient in achieving compact and high speed photonic systems. While there have been great strides in the miniaturization of optical elements

  6. State College Area High School From State College, PA Wins DOE...

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

    High School, Fort Collins, Colorado Regina Education Center, Iowa City, Iowa Smokey Hill High School, Aurora, Colorado The Harker School, San Jose, California Thomas...

  7. Two Jefferson Lab Scientists Win Prestigious Early Career Awards...

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

    research at the lab's Free-Electron Laser. He plans to develop high-dynamic range diagnostics for linear particle accelerators. Dudek, whose award comes through Old Dominion...

  8. Media Advisory: Jefferson Lab Signs Partnership Agreement With...

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

    experience for high-school students with ability and potential in science, technology, engineering or math, is slated to accept its first freshman class in 2014. The program...

  9. Jefferson Lab's Science Education Website Helps Students Prepare...

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

    math and science questions; 5th grade math, science and technology questions; 8th grade math, science and technology questions; and high school algebra I & II, geometry, earth...

  10. Jefferson Lab's Science Education Website Helps Students Prepare...

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

    math and science questions; 5th grade math, science and technology questions; 8th grade math, science and technology questions; high school algebra I & II, geometry, earth...

  11. A FULL-ORDER, ALMOST-DETERMINISTIC OPTICAL MATCHING Yu-Chiu Chao, Thomas Jefferson National Accelerator Facility, Newport News, VA 23606

    E-Print Network [OSTI]

    - - = - - - - = - - 0 0 0 0 (1) where the indices 1 and 2 label the initial and end twiss parameters. These 2 transfer) The problem is thus one of solving K1 to K4 given the initial and end twiss parameters and the intervening

  12. The 12 GeV CEBAF Upgrade Project at Thomas Jefferson National Accelerator Facility, OAS-RA-L-11-13

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCEDInstallers/ContractorsPhotovoltaics »TanklessResearchEnergy2 DOE Hydrogen12 GeV CEBAF

  13. Geology and geothermal resources of the Santiam Pass area of the Oregon Cascade Range, Deschutes, Jefferson and Linn Counties, Oregon

    SciTech Connect (OSTI)

    Hill, B.E. (ed.)

    1992-10-01

    This open-file report presents the results of the Santiam Pass drilling program. The first phase of this program was to compile all available geological, geophysical and geothermal data for the Santiam Pass area and select a drill site on the basis of these data (see Priest and others, 1987a), A summary of the drilling operations and costs associated with the project are presented in chapter 1 by Hill and Benoit. An Overview of the geology of the Santiam Pass area is presented by Hill and Priest in chapter 2. Geologic mapping and isotopic age determinations in the Santiam Pass-Mount Jefferson area completed since 1987 are summarized in chapter 2. One of the more important conclusions reached in chapter 2 is that a minimum of 2 km vertical displacement has occurred in the High Cascade graben in the Santiam Pass area. The petrology of the Santiam Pass drill core is presented by Hill in chapter 3. Most of the major volcanic units in the core have been analyzed for major, minor, and trace element abundances and have been studied petrographically. Three K-Ar ages are interpreted in conjunction with the magnetostratigraphy of the core to show that the oldest rocks in the core are approximately 1.8 Ma. Geothermal and geophysical data collected from the Santiam Pass well are presented by Blackwell in chapter 4. The Santiam Pass well failed to penetrate beneath the zone of lateral groundwater flow associated with highly permeable Quaternary volcanic rocks. Calculated geothermal gradients range from about 50[degree]C/km at depth 700-900 m, to roughly 110[degree]C/km from 900 m to the bottom of the well at 929 m. Heat-flow values for the bottom part of the hole bracket the regional average for the High Cascades. Blackwell concludes that heat flow along the High Cascades axis is equal to or higher than along the western edge of the High Cascades.

  14. Amber Boehnlein Becomes Jefferson Lab's Chief Information Officer...

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

    often play math games with her grandmother. She taught herself how to code while in high school. When she went off to college, it was only natural that she chose to study physics....

  15. Jefferson Lab Detector Technology Aids Development of Cystic...

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

    the radiotracer, which is trapped in cells containing the transferred gene in the lungs and liver of the mouse. Click image for high-resolution file (7.8MB) Photo credit: Dr....

  16. VBA-0005- In the Matter of Thomas Dwyer

    Broader source: Energy.gov [DOE]

    This Decision considers an Appeal of an Initial Agency Decision (IAD) issued on May 2, 2000, involving a complaint filed by Thomas Dwyer (Dwyer or the complainant) under the Department of Energy ...

  17. DOE Zero Energy Ready Home Case Study: Charles Thomas Homes,...

    Energy Savers [EERE]

    under slab; a vented attic with R-100 blown cellulose; 95% AFUE furnace, 14 SEER AC, ERV; heat pump water heater. DOE Zero Energy Ready Home Case Study: Charles Thomas Homes,...

  18. Automatic Annotation Benjamin Arlyn Burnett, Larry Holder, Brian Thomas

    E-Print Network [OSTI]

    Collins, Gary S.

    Automatic Annotation Benjamin Arlyn Burnett, Larry Holder, Brian Thomas Electrical Engineering that would automatically provide annotations and tried to determine how beneficial it was. approach Our approach involved combining two previously developed technologies to create automatic annotation. · Naïve

  19. Meaning Change in the Context of Thomas S. Kuhn's Philosophy 

    E-Print Network [OSTI]

    Kuukkanen, Jouni-Matti

    Thomas S. Kuhn claimed that the meanings of scientific terms change in theory changes or in scientific revolutions. In philosophy, meaning change has been taken as the source of a group of problems, such as untranslatability, ...

  20. MEMORANDUM FOR ELIZABETH MONTOYA TRANSITION TEAM FROM THOMAS...

    Energy Savers [EERE]

    g December 1, 200S MEMORANDUM FOR ELIZABETH MONTOYA TRANSITION TEAM FROM THOMAS N. PYKE, J CHIEF INFORMATION OFFICER SUBJECT: Follow-up to our meeting this morning Carl Staton...

  1. The autobiography of Thomas Secker, Archbishop of Canterbury

    E-Print Network [OSTI]

    Macauley, John S.; Greaves, Robert William

    1988-01-01

    The autobiography of Thomas Secker Archbishop of Canterbury University of Kansas Publications Library Series, 49 Archbishop Secker. by Sir Joshua Reynolds (Lambeth Palace) EDITED BY JOHN S. MACAULEY & R. W. GREAVES LAWRENCE UNIVERSITY... OF KANSAS LIBRARIES 1988 The autobiography of Thomas Secker Archbishop of Canterbury Frontispiece and cover by courtesy of the Archbishop of Canterbury. (Photograph: Gourtauld Institute of Art) Copyright © 1988 by the University of Kansas Libraries...

  2. A parametrized version of the Borsuk Ulam Thomas Schick

    E-Print Network [OSTI]

    Schick, Thomas

    A parametrized version of the Borsuk Ulam theorem Thomas Schick Uni G¨ottingen Germany Bob Simon is a homeomorphism, then f : H(X, A) H(Y, B) is a isomorphism of Cech homology groups. e-mail: schick@uni-math.gwdg.de www: http://www.uni-math.gwdg.de/schick Fax: ++49 -551/39 2985 1 #12;2 Thomas Schick and Robert Simon

  3. Dynamically polarized target for the gp2 and GpE experiments at Jefferson Lab

    SciTech Connect (OSTI)

    Pierce, J.; Maxwell, J.; Badman, T.; Brock, J.; Carlin, C.; Crabb, D. G.; Day, D.; Keith, C. D.; Kvaltine, N.; Meekins, D. G.; Mulholland, J.; Shields, J.; Slifer, K.

    2013-12-16

    We describe a dynamically polarized target that has been utilized for two electron scattering experiments in Hall A at Jefferson Lab. The primary components of the target are a new, high cooling power 4 He evaporation refrigerator, and a re-purposed, superconducting split-coil magnet. It has been used to polarize protons in irradiated NH3 at a temperature of 1 K and at fields of 2.5 and 5.0 Tesla. The performance of the target material in the electron beam under these conditions will be discussed. The maximum polarizations of 28% and 95% were obtained at those fields, respectively. To satisfy the requirements of both experiments, the magnet had to be routinely rotated between angles of 0, 6, and 90 degrees with respect to the incident electron beam. This was accomplished using a new rotating vacuum seal which permits rotations to be performed in only a few minutes.

  4. Dynamically polarized target for the g{sub 2}{sup p} and G{sub E}{sup p} experiments at Jefferson Lab

    SciTech Connect (OSTI)

    Pierce, Joshua J. [JLAB, Newport News, VA (United States); Maxwell, James D. [MIT, Amherst, MA (United States); Keith, Christopher D. [JLAB, Newport News, VA (United States)

    2014-01-01

    Recently, two experiments were concluded in Hall A at Jefferson Lab which utilized a newly assembled, solid, polarized hydrogen target. The primary components of the target are a new, high cooling power {sup 4}He evaporation refrigerator, and a re-purposed, superconducting split-coil magnet. It has been used to polarize protons in irradiated NH{sub 3} at a temperature of 1 K and at fields of 2.5 and 5.0 tesla. Maximum polarizations of 55% and 95% were obtained at those fields, respectively. To satisfy the requirements of both experiments, the magnet had to be routinely rotated between angles of 0 deg, 6 deg, and 90 deg with respect to the incident electron beam.

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

    SciTech Connect (OSTI)

    Friend, M; Benmokhtar, F; Camsonne, A; Dalton, M; Franklin, G B; Mamyan, V; Michaels, R; Nanda, S; Nelyubin, V; Paschke, K; Quinn, B; Rakhman, A; Souder, P

    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.

  6. 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.

  7. FMEA on the superconducting torus for the Jefferson Lab 12 GeV accelerator upgrade

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

    Ghoshal, Probir K.; Biallas, George H.; Fair, Ruben J.; Rajput-Ghoshal, Renuka; Schneider, William J.; Legg, Robert A.; Kashy, David H.; Hogan, John P.; Wiseman, Mark A.; Luongo, Cesar; et al

    2015-01-16

    As part of the Jefferson Lab 12GeV accelerator upgrade project, Hall B requires two conduction cooled superconducting magnets. One is a magnet system consisting of six superconducting trapezoidal racetrack-type coils assembled in a toroidal configuration and the second is an actively shielded solenoidal magnet system consisting of 5 coils. Both magnets are to be wound with Superconducting Super Collider-36 NbTi strand Rutherford cable soldered into a copper channel. This paper describes the various failure modes in torus magnet along with the failure modes that could be experienced by the torus and its interaction with the solenoid which is located inmore »close proximity.« less

  8. Jefferson Lab CLAS12 Superconducting Solenoid magnet Requirements and Design Evolution

    SciTech Connect (OSTI)

    Rajput-Ghoshal, Renuka [Jefferson Lab, Newport News, VA; Hogan, John P. [Jefferson Lab, Newport News, VA; Fair, Ruben J. [Jefferson Lab, Newport News, VA; Ghoshal, Probir K. [Jefferson Lab, Newport News, VA; Luongo, Cesar [Jefferson Lab, Newport News, VA; Elouadrhiri, Latifa [Jefferson Lab, Newport News, VA

    2014-12-01

    As part of the Jefferson Lab 12GeV accelerator upgrade project, one of the experimental halls (Hall B) requires two superconducting magnets. One is a magnet system consisting of six superconducting trapezoidal racetrack-type coils assembled in a toroidal configuration and the second is an actively shielded solenoidal magnet system consisting of 5 coils. In this presentation the physics requirements for the 5 T solenoid magnet, design constraints, conductor decision, and cooling choice will be discussed. The various design iterations to meet the specification will also be discussed in this presentation.

  9. 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.

  10. The 3D structure of the hadrons: recents results and experimental program at Jefferson Lab

    SciTech Connect (OSTI)

    Munoz Camacho, Carlos

    2014-04-01

    The understanding of Quantum Chromodynamics (QCD) at large distances still remains one of the main outstanding problems of nuclear physics. Studying the internal structure of hadrons provides a way to probe QCD in the non-perturbative domain and can help us unravel the internal structure of the most elementary blocks of matter. Jefferson Lab (JLab) has already delivered results on how elementary quarks and gluons create nucleon structure and properties. The upgrade of JLab to 12 GeV will allow the full exploration of the valence-quark structure of nucleons and the extraction of real threedimensional pictures. I will present recent results and review the future experimental program at JLab.

  11. The GlueX experiment: Search for gluonic excitations via photoproduction at Jefferson Lab

    SciTech Connect (OSTI)

    Eugenio, Paul [Florida State U.

    2013-07-01

    Studies of meson spectra via strong decays provide insight regarding QCD at the confinement scale. These studies have led to phenomenological models for QCD such as the constituent quark model. However, QCD allows for a much richer spectrum of meson states which include extra states such as exotics, hybrids, multi-quarks, and glueballs. First discussion of the status of exotic meson searches is given followed by an overview of the progress at Jefferson Lab to double the energy of the machine to 12 GeV, which will allow us to access photoproduction of mesons in search for gluonic excited states.

  12. Characteristics and fabrication of a 499 MHz superconducting deflecting cavity for the Jefferson Lab 12 geV Upgrade

    SciTech Connect (OSTI)

    HyeKyoung Park, S.U. De Silva, J.R. Delayen

    2012-07-01

    A 499 MHz parallel bar superconducting deflecting cavity has been designed and optimized for a possible implementation at the Jefferson Lab. Previously the mechanical analysis, mainly stress, was performed. Since then pressure sensitivity was studied further and the cavity parts were fabricated. The prototype cavity is not completed due to the renovation at Jefferson Lab which resulted in the temporary shutdown of the electron beam welding facility. This paper will present the analysis results and facts encountered during fabrication. The unique geometry of the cavity and its required mechanical strength present interesting manufacturing challenges.

  13. Name Institution Scientific Field Thomas P. Russell University of Massachusetts PRP Chair

    E-Print Network [OSTI]

    Wechsler, Risa H.

    Name Institution Scientific Field Thomas P. Russell University of Massachusetts PRP Chair Ali Atomic, Molecular and Cluster Physics (AMO) Thomas Weinacht Stony Brook University Atomic, Molecular of Biological Objects (BIO-C); Tom Terwilliger LANL Crystallographic Structure Determination of Biological

  14. Wind Power Opportunities in St. Thomas, USVI: A Site-Specific...

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

    Wind Power Opportunities in St. Thomas, USVI: A Site-Specific Evaluation and Analysis Wind Power Opportunities in St. Thomas, USVI: A Site-Specific Evaluation and Analysis Utilizes...

  15. Bundles with spherical Euler class Luis Guijarro Thomas Schick y Gerard Walschap z

    E-Print Network [OSTI]

    Guijarro, Luis

    Bundles with spherical Euler class Luis Guijarro #3; Thomas Schick y Gerard Walschap z Last email: thomas.schick@math.uni-muenster.de z email: gerard@math.ou.edu 1 #12; Bundles with spherical

  16. Finite group extensions and the Atiyah conjecture Peter Linnell * Thomas Schicky

    E-Print Network [OSTI]

    Schick, Thomas

    Partially supported by SFB 478, M"unster ye-mail: thomas.schick@math.uni-muenster.de www: http) 1 #12; 2 Peter Linnell and Thomas Schick 2 Atiyah

  17. L2-INDEX THEOREMS, KK-THEORY, AND CONNECTIONS THOMAS SCHICK

    E-Print Network [OSTI]

    Schick, Thomas

    L2-INDEX THEOREMS, KK-THEORY, AND CONNECTIONS THOMAS SCHICK, trace. 1 #12; 2 THOMAS SCHICK scalar curvature are obtained by Hanke and Schick in [6]. There, we al* *so use generalizations

  18. QCD Evolution Workshop: Introduction

    E-Print Network [OSTI]

    Alexei Prokudin

    2012-10-15

    The introduction talk given at the beginning of QCD Evolution workshop held in Thomas Jefferson National Accelerator Facility (Jefferson Lab) on May 14 -17, 2012.

  19. Science Requirements and Conceptual Design for a Polarized Medium Energy Electron-Ion Collider at Jefferson Lab

    E-Print Network [OSTI]

    Abeyratne, S; Ahmed, S; Barber, D; Bisognano, J; Bogacz, A; Castilla, A; Chevtsov, P; Corneliussen, S; Deconinck, W; Degtiarenko, P; Delayen, J; Derbenev, Ya; DeSilva, S; Douglas, D; Dudnikov, V; Ent, R; Erdelyi, B; Evtushenko, P; Filatov, Yu; Gaskell, D; Geng, R; Guzey, V; Horn, T; Hutton, A; Hyde, C; Johnson, R; Kim, Y; Klein, F; Kondratenko, A; Kondratenko, M; Krafft, G; Li, R; Lin, F; Manikonda, S; Marhauser, F; McKeown, R; Morozov, V; Nadel-Turonski, P; Nissen, E; Ostroumov, P; Pivi, M; Pilat, F; Poelker, M; Prokudin, A; Rimmer, R; Satogata, T; Sayed, H; Spata, M; Sullivan, M; Tennant, C; Terzi?, B; Tiefenback, M; Wang, H; Wang, S; Weiss, C; Yunn, B; Zhang, Y

    2012-01-01

    This report presents a brief summary of the science opportunities and program of a polarized medium energy electron-ion collider at Jefferson Lab and a comprehensive description of the conceptual design of such a collider based on the CEBAF electron accelerator facility.

  20. Science Requirements and Conceptual Design for a Polarized Medium Energy Electron-Ion Collider at Jefferson Lab

    E-Print Network [OSTI]

    S. Abeyratne; A. Accardi; S. Ahmed; D. Barber; J. Bisognano; A. Bogacz; A. Castilla; P. Chevtsov; S. Corneliussen; W. Deconinck; P. Degtiarenko; J. Delayen; Ya. Derbenev; S. DeSilva; D. Douglas; V. Dudnikov; R. Ent; B. Erdelyi; P. Evtushenko; Yu. Filatov; D. Gaskell; R. Geng; V. Guzey; T. Horn; A. Hutton; C. Hyde; R. Johnson; Y. Kim; F. Klein; A. Kondratenko; M. Kondratenko; G. Krafft; R. Li; F. Lin; S. Manikonda; F. Marhauser; R. McKeown; V. Morozov; P. Nadel-Turonski; E. Nissen; P. Ostroumov; M. Pivi; F. Pilat; M. Poelker; A. Prokudin; R. Rimmer; T. Satogata; H. Sayed; M. Spata; M. Sullivan; C. Tennant; B. Terzi?; M. Tiefenback; H. Wang; S. Wang; C. Weiss; B. Yunn; Y. Zhang

    2012-09-05

    This report presents a brief summary of the science opportunities and program of a polarized medium energy electron-ion collider at Jefferson Lab and a comprehensive description of the conceptual design of such a collider based on the CEBAF electron accelerator facility.