National Library of Energy BETA

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  1. Fri Sat Sun Mon Tue Wed Thu

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

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

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

    6 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Day LL41 He DD Day IH Night LK86 Albert SPI 4/1/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Day DD - SPI IH Coffee LL72

  8. Mon Tue Wed Thu Fri Sat Sun Mon

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    Jul 13 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Day IH IH IH Night IH Aug 13 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Day Night Sep 13 1 2 3 4 5 6 7 8 9 10 11 12 13

  9. Sat Sun Mon Tue Wed Thu Fri Sat

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

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  10. Tue Wed Thu Fri Sat Sun Mon Tue

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

    Jan 13 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Day IH IH IH IH Night Feb 13 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Day L733 Night IH IH L767 Seeman L785 Mar 13 1 2 3 4 5 6 7 8 9 10 11

  11. Thu Fri Sat Sun Mon Tue Wed Thu

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

    /2015 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Day LJ54 Gessner LJ67 Khalil IH LJ49 Fromme Night LK21 Sension IH LJ41 Fennel LJ43 Fiuza DS 11/1/2015 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu

  12. Tue Wed Thu Fri Sat Sun Mon Tue

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    Jan 13 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue ...

  13. Mon Tue Wed Thu Fri Sat Sun Mon

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    Jul 13 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon ...

  14. Mon Tue Wed Thu Fri Sat Sun Mon

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

    1/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Day LO35 X114 SPI X115 LO58 Kong LO63 Staub LN34 Westenhoff Day LM95 Wang LN17 Cherezov LO47 Pollack Day PCS PCS PCS PCS PCS PCS PCS PCS PCS Night PCS LO46 Chen LN23 Lee DD LO08 Watk. LO63 LO08 Watkins 9/1/2016 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

  15. Tue Wed Thu Fri Sat Sun Mon Tue

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

    Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Day LL41 He DD Day IH Night LK86 Albert SPI 412016 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27...

  16. Wed Thu Fri Sat Sun

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

    BOE Reserve Class No 2001 reserves 0.1 - 10 MBOE 10.1 - 100 MBOE 100.1 - 1,000 MBOE 1,000.1 - 10,000 MBOE 10,000.1 - 100,000 MBOE > 100,000 MBOE Appalachian Basin Boundary Appalachian Basin, Southern OH (Panel 4 of 7) Oil and Gas Fields By 2001 BOE Reserve Class Total Total Total Number Liquid Gas BOE of Reserves Reserves Reserves Basin Fields (Mbbl) (MMcf) (Mbbl) Appalachian 3354 79,141 9,550,156 1,670,834 2001 Proved Reserves for Entire Applachian Basin OH WV The mapped oil and gas field

  17. Wed Thu Fri Sat Sun

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

    NdNiO3 interface: charge-order dynamics LF16 XPP GAFFNEY, KELLY Observing ligand torsion dynamics in a solvated Cu(I)(diimine)2+ compound to understand excited-state dynamics...

  18. Wed Thu Fri Sat Sun

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

    ... LG06 MEC Schlenvoigt,Hans-Peter Measuring self-generated magnetic fields from laser-solid interaction LG07 CXI SCHLICHTING, ILME Radiation damage in serial femtosecond ...

  19. Fri Sat Sun Mon Tue Wed Thu

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

    Services » FOIA » Frequently Requested FOIA Records Frequently Requested FOIA Records October 15, 2015 Special Inquiry: DOE/IG-0927 Alleged Attempts by Sandia National Laboratories to Influence Congress and Federal Officials on a Contract Extension August 21, 2015 Inspection Report: DOE/IG-0921 Alleged Fraud, Waste, Abuse and Mismanagement at the Site Office July 7, 2015 Special Inquiry: DOE/IG-0927 Alleged Attempts by Sandia National Laboratories to Influence Congress and Federal Officials on

  20. Fri Sat Sun Mon Tue Wed Thu

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

    Commissioning Fritz - L806 David - L221 Lindenberg - L248 Glover - L233 Soft Start Surface Science Wurth - L188, L189, L191, L203, L204 In-House (AMO) Larson - L166 RSXS: Lee...

  1. Becky Fried

    Broader source: Energy.gov [DOE]

    Becky Fried is a Communications and Policy Analyst at the White House Office of Science & Technology Policy.

  2. LCLS-scheduling-run_V_Ver9c.xlsx

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

    2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Day Com Com Com Com Com L421 Coffee Night L477 Robinson Gruebel (L304, run 4) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Thur Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Day L498

  3. LCLS-schedul_run-II_10_05_6-detail.xls

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

    Run II Detailed Schedule, May 6-September 13, 2010 Thurs Fri Sat Sun Mon Tues Wed BL Prop Spokesperson PI Planned ActivityExperiment Title POC AD Program Deputy Week 1 6-May...

  4. Sun Mon Tue Wed Thu Fri Sat Sun

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

    LH60 XPP Kayser, Yves RIXS spectroscopy using SASE pulses - towards near-edge nonlinear X-ray spectroscopy LH62 XCS KIM, HYUNJUNG Time-resolved Strain Development of Zeolites in...

  5. Sat Sun Mon Tue Wed Thu Fri Sat

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

    ... LD71 XPP Sokaras, Dimosthenis Following the diffusion of optical excitons in organic semiconductors with x-ray Raman spectroscopy LD74 XPP SOLTIS, S Structure Determination of ...

  6. Tue Wed Thu Fri Sat Sun Mon Tue

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

    ... LL58 MEC Kraus, Dominik Phase separation of hydrocarbons at conditions comparable to planetary interiors and the first shock in ICF LL71 MFX Lyubimov, Artem In-chip X-ray analysis ...

  7. Thu Fri Sat Sun Mon Tue Wed Thu

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

    LK48 IH LK48 IH IH LJ15 Berrah LK09 Russell LJ69 Day LK24 Shpyrko IH LJ32 LJ32 IH-Sci Hoffman Night LJ51 Fuchs LK48 IH LK48 LJ32 LK48 Det LK34 Thibault DD-SPI IH IH PCS LJ69...

  8. Sun Mon Tue Wed Thu Fri Sat Sun

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

    (Energy Information Administration/Short-Term Energy Outlook -- April 2001) 1 Summer 2001 Motor Gasoline Outlook Summary April 2001 For the upcoming summer season (April to September), motor gasoline markets are projected to once again exhibit a very tight supply/demand balance. * Retail gasoline prices (regular grade) are expected to average $1.49 per gallon, slightly lower than last summer's average of $1.53 per gallon, but still above the previous (current-dollar) record summer average of

  9. Mon Tue Wed Thu Fri Sat Sun Mon

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

    July 2013 - March 2014 Ver 6: 1814 IH Feng L703 Gruebel LA41 Doniach L688 Fajardo Prop. No. Instr. Spokes Person Title LA06 CXI Barends, Thomas Seeded FEL Beams for...

  10. Tue Wed Thu Fri Sat Sun Mon Tue

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

    Minitti L695 Gaffney L751 Petrovic L764 Schlichting List for web v5 1102013 Instr. Prop Title Spokes Person XCS L637 A grating-based delay line for x-ray pump x-ray probe...

  11. Sat Sun Mon Tue Wed Thu Fri Sat

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

    LD78 - Stephenson LD58 - Scherz LD81 - Sutton LC30 - Bolme LC88 - Huse LD55 Rudenko Prop. No. Instr. Spokes Person Title LC69 AMO GORKHOVER, TAISIA In-flight holography with...

  12. Wedding ring shaped excitation coil

    DOE Patents [OSTI]

    MacLennan, Donald A.; Tsai, Peter

    2001-01-01

    A high frequency inductively coupled electrodeless lamp includes an excitation coil with an effective electrical length which is less than one half wavelength of a driving frequency applied thereto, preferably much less. The driving frequency may be greater than 100 MHz and is preferably as high as 915 MHz. Preferably, the excitation coil is configured as a non-helical, semi-cylindrical conductive surface having less than one turn, in the general shape of a wedding ring. At high frequencies, the current in the coil forms two loops which are spaced apart and parallel to each other. Configured appropriately, the coil approximates a Helmholtz configuration. The lamp preferably utilizes an bulb encased in a reflective ceramic cup with a pre-formed aperture defined therethrough. The ceramic cup may include structural features to aid in alignment and/or a flanged face to aid in thermal management. The lamp head is preferably an integrated lamp head comprising a metal matrix composite surrounding an insulating ceramic with the excitation integrally formed on the ceramic. A novel solid-state oscillator preferably provides RF power to the lamp. The oscillator is a single active element device capable of providing over 70 watts of power at over 70% efficiency.

  13. Bryan Fry | Photosynthetic Antenna Research Center

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

    Bryan Fry Bryan Fry Bryan Fry Graduate Student E-mail: bryanfry@mail.med.upenn.edu Website: University of Pennsylvania Graduate...

  14. Hopper compilers and DDT short outage next Wed, May 16

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

    compilers and DDT short outage next Wed, May 16 Hopper compilers and DDT short outage next Wed, May 16 May 10, 2012 Due to a scheduled maintenance for the License Servers, most of...

  15. Fry receives Charles W. Briggs Award

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

    Fry receives Charles W. Briggs Award Fry receives Charles W. Briggs Award The ASTM International Committee E07 on Nondestructive Testing has honored David Fry with the Charles W. Briggs Award. June 2, 2014 David Fry David Fry Fry was recognized for his continuous and outstanding contributions to the standards development work of the committee through its subcommittees, sections and task groups. The ASTM International Committee E07 on Nondestructive Testing has honored David Fry of Applied

  16. PVMRW2013 Wed., Feb. 27, 3:00 Final Discussion | Department of Energy

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

    3:00 Final Discussion PVMRW2013 Wed., Feb. 27, 3:00 Final Discussion The final discussion reviewed many of the complex topics covered during the two days... discussionnotes_weds_300.pdf (103.52 KB) More Documents & Publications PVMRW2013 Wed., Feb. 27, 1:45 Discussion notes PVMRW2013 Wed., Feb. 27, 10:00 Discussion notes:

  17. LiveChat Thurs, 10/20, 2pm ET: Clean Tech Markets | Department of Energy

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

    LiveChat Thurs, 10/20, 2pm ET: Clean Tech Markets LiveChat Thurs, 10/20, 2pm ET: Clean Tech Markets October 17, 2011 - 11:30am Addthis Liisa O'Neill Liisa O'Neill Former New Media Specialist, Office of Public Affairs How can I participate? Send an email to newmedia@hq.doe.gov; Tweeting your question to @energy with the hashtag #energymatters; or leaving a question for Kauffman at Facebook.com/energygov. On Energy.gov, we've been showcasing a series of stories about innovations from our National

  18. PVMRW2013 Wed., Feb. 27, 10:00 Discussion notes: | Department of Energy

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

    0:00 Discussion notes: PVMRW2013 Wed., Feb. 27, 10:00 Discussion notes: We hear that the dampl heat test causes failures that are not representative of field failure... discussionnotes_weds_1000.pdf (103.24 KB) More Documents & Publications PVMRW2013 Discussion notes: Tues. Feb. 26: 10:45 PVMRW2013 Wed., Feb. 27, 1:45 Discussion notes PVMRW2013 Wed., Feb. 27, 3:00 Final Discussion

  19. PVMRW2013 Wed., Feb. 27, 1:45 Discussion notes | Department of Energy

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

    1:45 Discussion notes PVMRW2013 Wed., Feb. 27, 1:45 Discussion notes It could be useful to mix UVA and UVB and test the effects of both at the same time... discussionnotes_weds_145.pdf (118.88 KB) More Documents & Publications PVMRW2013 Wed., Feb. 27, 10:00 Discussion notes: PVMRW2013 Wed., Feb. 27, 3:00 Final Discussion

  20. PowerPoint Presentation

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

    R. Sankaran, E. Hawkes, Jackie Chen T. Lu, C. K. Law premixed Friday: Combustion instabilities (growl) and extinction 1 Outline for the week Mon: Physical concepts faster mixing, faster propagation, optimize liftoff, flame surface density, reaction rate, PDF Tues: Kilohertz PLIF, PIV measurements of flame structure - to assess models Wed: Non-Premixed and Premixed flames - measurements, models gas turbine example Thurs: Partially premixed flames - and some examples Fri: Future challenges:

  1. PowerPoint Presentation

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

    DNS PROCI 31, 1299 R. Sankaran, E. Hawkes, Jackie Chen T. Lu, C. K. Law Premixed DNS PROCI 31, 1291 1 Outline for the week Mon: Physical concepts faster mixing, faster propagation, optimize liftoff, flame surface density, reaction rate, PDF Tues: Kilohertz PLIF, PIV measurements of flame structure - to assess models Wed: Non-Premixed and Premixed flames - measurements, models gas turbine example Thurs: Partially premixed flames - and some examples Fri: Future challenges: Combustion Instabilities

  2. PowerPoint Presentation

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

    corregated" premixed R. Sankaran, E. Hawkes, Jackie Chen T. Lu, C. K. Law premixed Thursday: Partially-premixed flames 1 Outline for the week Mon: Physical concepts faster mixing, faster propagation, optimize liftoff, flame surface density, reaction rate, PDF Tues: Kilohertz PLIF, PIV measurements of flame structure - to assess models Wed: Non-Premixed and Premixed flames - measurements, models gas turbine example Thurs: Partially premixed flames - and some examples Fri: Future challenges:

  3. PowerPoint Presentation

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

    corrugated" premixed R. Sankaran, E. Hawkes, Jackie Chen, T. Lu, C. K. Law premixed Tuesday: Kilohertz PLIF, PIV measurements 1 Outline for the week Mon: Physical concepts faster mixing, faster propagation, optimize liftoff, flame surface density, reaction rate, PDF Tues: Kilohertz PLIF, PIV measurements of flame structure - to assess models Wed: Non-Premixed and Premixed flames - measurements, models gas turbine example Thurs: Partially premixed flames - and some examples Fri: Future

  4. PowerPoint Presentation

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

    corregated" premixed R. Sankaran, E. Hawkes, Jackie Chen T. Lu, C. K. Law premixed Wednesday: Non-premixed and Premixed Flames 1 Outline for the week Mon: Physical concepts faster mixing, faster propagation, optimize liftoff, flame surface density, reaction rate, PDF Tues: Kilohertz PLIF, PIV measurements of flame structure - to assess models Wed: Non-Premixed and Premixed flames - measurements, models gas turbine example Thurs: Partially premixed flames - and some examples Fri: Future

  5. Hopper compilers and DDT short outage next Wed, May 16

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

    compilers and DDT short outage next Wed, May 16 Hopper compilers and DDT short outage next Wed, May 16 May 10, 2012 Due to a scheduled maintenance for the License Servers, most of the compilers (except GNU) and the DDT debugger on Hopper will not be available from 10:30 am to 12:30 pm on Wednesday, May 16. If there are any questions or concerns, please contact "consult at nersc dot gov". Subscribe via RSS Subscribe Browse by Date February 2013 September 2012 August 2012 May 2012 April

  6. Friction Control Solutions Inc FriCSo | Open Energy Information

    Open Energy Info (EERE)

    Friction Control Solutions Inc FriCSo Jump to: navigation, search Name: Friction Control Solutions Inc. (FriCSo) Place: Farmington Hills, Michigan Zip: 48331 Product: FriCSo offers...

  7. FRI EL Sea Power S r l | Open Energy Information

    Open Energy Info (EERE)

    FRI EL Sea Power S r l Jump to: navigation, search Name: FRI EL Sea Power S r l Address: Piazza del Grano 3 Place: Bolzano Zip: 39100 Region: Italy Sector: Marine and Hydrokinetic...

  8. EMBARGOED FOR 1 P.M. Eastern Standard Time Wed, Feb. 4, 2015

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

    call for antibody 'bar code' system to follow Human Genome Project February 4, 2015 EMBARGOED FOR 1 P.M. Eastern Standard Time Wed, Feb. 4, 2015 LOS ALAMOS, N.M., Feb. 4, 2015-More...

  9. PowerPoint Presentation

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

    Thur. * Lunch available on 2 nd floor, Tues & Wed. * Wireless internet (UIUCnet) available: username & password in registration packet * Map in registration packet * Parking passes ...

  10. H. Christopher Fry | Argonne National Laboratory

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

    H. Christopher Fry Scientist PhD, Johns Hopkins University, Advisor: Kenneth Karlin (2005) Post-Doc, University of Pennsylvania, Advisors: Michael Therien and Bill DeGrado (2005 - 2008) Post-Doc, Northwestern University, Advisor: Samuel Stupp (2008 - 2009) Functional Supramolecular Bioinorganic Materials Synthesis of novel macrocyclic molecules as cofactors for de novo designed proteins and non-natural molecules with enhanced and novel functions in a biomolecular framework. Design of peptides

  11. 2016_ataglance

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

    MAY JUNE JULY AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER PAYDAY PAYDAY PAYDAY SUN MON TUE WED THU FRI SAT SUN MON TUE WED THU FRI SAT SUN MON TUE WED THU FRI SAT PAYDAY SUN MON TUE ...

  12. LCLS-schedul_run-II_10_05_6-detail.xls

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

    User-Assisted Commissioning Run II Detailed Schedule, May 6-September 13, 2010 Thurs Fri Sat Sun Mon Tues Wed BL Prop# Spokesperson/ PI Planned Activity/Experiment Title POC AD Program Deputy Week 1 6-May 7-May 8-May 9-May 10-May 11-May 12-May Day SXR com SXR com SXR com SXR com SXR com MD MD SXR L805 Bill Schlotter SXR Commissioning Schlotter H-D. Nuhn Night Küpper Küpper Küpper Küpper Küpper MD ROD AMO L011 Jochen Küpper Diffractive Imaging of Oriented Molecules in the Gas Phase Bostedt

  13. Hopper OS upgrade and new SW set to default next Wed, Feb 27

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

    OS upgrade and new SW set to default next Wed, Feb 27 Hopper OS upgrade and new SW set to default next Wed, Feb 27 February 21, 2013 by Helen He 1) There will be a scheduled hardware and software maintenance for Hopper next Wednesday, February 27, from 7 am to 7 pm Pacific time. This is a major OS upgrade. Most applications are highly recommended to recompile (or at least relink) after the maintenance. C++ and PGAS applications are recommended to recompile and relink. Please plan your work

  14. LCLS-scheduling-run_V_Ver9c.xlsx

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

    13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Day ...

  15. LCLS-scheduling-run_6_Ver4.xlsx

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

    14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu ...

  16. Weekly Petroleum Status Report

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

    Mon 620 Tue 621 Wed 622 Thu 623 Fri 624 Mon 627 Tue 628 Wed 629 Thu 630 Fri 71 Crude Oil (WTI, Cushing, Oklahoma) August-2016 ......

  17. MHK Technologies/FRI El Sea Power System | Open Energy Information

    Open Energy Info (EERE)

    FRI El Sea Power System.jpg Technology Profile Primary Organization FRI EL Sea Power S r l Technology Type Click here Axial Flow Turbine Technology Description The device is...

  18. Hopper Email Announcements Archive

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

    He Hopper scheduled maintenance next Wed July 15 2015-07-07 22:08:07 Yun He Hopper scheduled maintenance next Thur June 4 2015-05-28 15:41:15 ...

  19. Effects of oil-contaminated prey on the feeding, growth, and related energetics on pink salmon, Oncorhynchus gorbuscha Walbaum, fry

    SciTech Connect (OSTI)

    Schwartz, J.P.

    1984-01-01

    Pink salmon, Oncorhynchus gorbuscha Walbaum, fry were exposed to oil contaminated prey (OCP) in a series of experiments to determine the effect of oil exposure via the diet on the ability of pink fry to survive. Brine shrimp, Artemia salina, nauplii were contaminated with petroleum hydrocarbons by exposure to the water-soluble fraction (WSF) of Cook Inlet crude oil and fed to the fish. Feeding rates were measured for 10 days using OCP and for 5 days using uncontaminated prey (post-exposure period). In a separate experiment, fry growth was measured over a 50 day period. In another experiment, fry oxygen consumption, food absorption and utilization, and ammonia excretion was measured to determine the effects of OCP on fry metabolic activity. Results indicate that exposure to OCP can reduce fry growth primarily by reducing food intake, but additional nutrition is lost from the non-absorption of ingested food. Reductions in growth could decrease fry survival, and thereby reduce the number of returning adult pink salmon.

  20. LCLS-scheduling-run_6_Ver4.xlsx

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

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Day IH L431 Frank Com HR CXI inhouse L456 Krasniqi L481/ L481/ Com. IH MEC L525 Night Feng RD Timing L481/494 Com L481/494 L406 Berrah L434 Fuchs June 12 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu

  1. Effects of Total Dissolved Gas on Chum Salmon Fry Incubating in the Lower Columbia River

    SciTech Connect (OSTI)

    Arntzen, Evan V.; Hand, Kristine D.; Geist, David R.; Murray, Katherine J.; Panther, Jenny; Cullinan, Valerie I.; Dawley, Earl M.; Elston, Ralph A.

    2008-01-30

    This report describes research conducted by Pacific Northwest National Laboratory in FY 2007 for the U.S. Army Corps of Engineers, Portland District, to characterize the effects of total dissolved gas (TDG) on the incubating fry of chum salmon (Onchorhynchus keta) in the lower Columbia River. The tasks conducted and results obtained in pursuit of three objectives are summarized: * to conduct a field monitoring program at the Ives Island and Multnomah Falls study sites, collecting empirical data on TDG to obtain a more thorough understanding of TDG levels during different river stage scenarios (i.e., high-water year versus low-water year) * to conduct laboratory toxicity tests on hatchery chum salmon fry at gas levels likely to occur downstream from Bonneville Dam * to sample chum salmon sac fry during Bonneville Dam spill operations to determine if there is a physiological response to TDG levels. Chapter 1 discusses the field monitoring, Chapter 2 reports the findings of the laboratory toxicity tests, and Chapter 3 describes the field-sampling task. Each chapter contains an objective-specific introduction, description of the study site and methods, results of research, and discussion of findings. Literature cited throughout this report is listed in Chapter 4. Additional details on the study methdology and results are provided in Appendixes A through D.

  2. Rainer Fries

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

    Research Associate, University of Minnesota, 2003-2005 Assistant Professor, University of Minnesota, 2005-2006 Assistant Professor, Texas A&M University, 2006-2011 RHIC Fellow, ...

  3. 2008 - 06 | Jefferson Lab

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

    6 Jun 2008 Fri, 2008-06-13 09:42 A Bigger Chill Wed, 2008-06-04 10:14 Nuclear Pairs

  4. 2011 - 04 | Jefferson Lab

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

    4 Apr 2011 Fri, 2011-04-08 10:07 Superconductivity Centennial Wed, 2011-04-06 10:18 Industrial Green

  5. VLBA AND CHANDRA OBSERVATIONS OF JETS IN FRI RADIO GALAXIES: CONSTRAINTS ON JET EVOLUTION

    SciTech Connect (OSTI)

    Kharb, P.; O'Dea, C. P.; Tilak, A.; Baum, S. A.; Haynes, E.; Noel-Storr, J.; Fallon, C.; Christiansen, K.

    2012-07-20

    We present here the results from new Very Long Baseline Array (VLBA) observations at 1.6 and 5 GHz of 19 galaxies of a complete sample of 21 Uppasala General Catalog (UGC) Fanaroff-Riley type I (FRI) radio galaxies. New Chandra data of two sources, viz., UGC 00408 and UGC 08433, are combined with the Chandra archival data of 13 sources. The 5 GHz observations of 10 'core-jet' sources are polarization-sensitive, while the 1.6 GHz observations constitute second-epoch total intensity observations of nine 'core-only' sources. Polarized emission is detected in the jets of seven sources at 5 GHz, but the cores are essentially unpolarized, except in M87. Polarization is detected at the jet edges in several sources, and the inferred magnetic field is primarily aligned with the jet direction. This could be indicative of magnetic field 'shearing' due to jet-medium interaction, or the presence of helical magnetic fields. The jet peak intensity I{sub {nu}} falls with distance d from the core, following the relation, I{sub {nu}}{proportional_to}d{sup a} , where a is typically {approx} - 1.5. Assuming that adiabatic expansion losses are primarily responsible for the jet intensity 'dimming,' two limiting cases are considered: (1) the jet has a constant speed on parsec scales and is expanding gradually such that the jet radius r{proportional_to}d 0{sup .4}; this expansion is, however, unobservable in the laterally unresolved jets at 5 GHz, and (2) the jet is cylindrical and is accelerating on parsec scales. Accelerating parsec-scale jets are consistent with the phenomenon of 'magnetic driving' in Poynting-flux-dominated jets. While slow jet expansion as predicted by case (1) is indeed observed in a few sources from the literature that are resolved laterally, on scales of tens or hundreds of parsecs, case (2) cannot be ruled out in the present data, provided the jets become conical on scales larger than those probed by VLBA. Chandra observations of 15 UGC FRIs detect X-ray jets in

  6. P-waves imaging of the FRI and BK zones at the Grimsel Rock Laboratory

    SciTech Connect (OSTI)

    Majer, E.L.; Peterson, J.E. Jr. ); Blueming, P.; Sattel, G. )

    1990-08-01

    This report is one of a series documenting the results of the Nagra-DOE Cooperative (NDC-I) research program in which the cooperating scientists explore the geological, geophysical, hydrological, geochemical, and structural effects anticipated from the use of a rock mass as a geological repository for nuclear waste. Tomographic imaging studies using a high frequency (10 Khz.) piezoelectric source and a three component receiver were carried out in two different regions of the underground Nagra Grimsel test facility in Switzerland. Both sites were in fractured granite, one being in a strongly foliated granite (FRI site), and the other being in a relatively homogeneous granite (BK zone). The object of the work was to determine if the seismic techniques could be useful in imaging the fracture zones and provide information on the hydrologic conditions. Both amplitude and velocity tomograms were obtained from the Data. The results indicate that the fracture zones strongly influenced the seismic wave propagation, thus imaging the fracture zones that were hydrologically important. 11 refs., 24 figs.

  7. Safety assessment of selected inorganic elements to fry of chinook salmon (Oncorhynchus tshawytscha)

    SciTech Connect (OSTI)

    Hamilton, S.J.; Buhl, K.J. )

    1990-12-01

    The acute toxicities of arsenate, arsenite, cadmium, chromate, copper, mercury, silver, vanadium, and zinc were determined, individually and in two environmentally relevant mixtures, to two life stages of chinook salmon in reconstituted fresh and brackish waters that stimulated potential conditions in the San Joaquin Valley, California. The relative individual toxicities of the elements varied over four orders of magnitude; from most toxic to least toxic, the rank order was cadmium greater than copper greater than mercury greater than zinc greater than vanadium greater than arsenite greater than arsenate greater than chromate (no definitive tests for silver). In general, young fish tested in fresh water were more sensitive to the individual elements and the two mixtures than were advanced fry tested in brackish water. A 13-element mixture simulating concentrations in the San Luis Drain had the same toxicity to fish as the same mixture plus selenate and selenite, thus demonstrating that the presence of selenium at its environmental ratio in the mixture contributed no toxicity in short-term tests. As judged by a comparison of the individual acute values for salmon to the expected environmental concentrations in the San Luis Drain, the margins of uncertainty for cadmium and copper in both waters, zinc in fresh water, and mercury in brackish water were less than 100, whereas for the two environmental mixtures the margins were less than 15 in both test waters. These low margins of uncertainty, especially for the mixtures, indicate a high potential for environmental hazard to chinook salmon in the reconstituted waters tested.

  8. Switch Switch

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

    Switch Switch Run end at 6pm at 6pm at 6am 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue ...

  9. Hydrologic characterization of the Fry Canyon, Utah site prior to field demonstration of reactive chemical barriers to control radionuclide and trace-element contamination in ground water

    SciTech Connect (OSTI)

    Naftz, D.L.; Freethey, G.W.; Davis, J.A.

    1997-12-31

    The Fry Canyon Site in southeastern Utah has been selected as a long term demonstration site to assess the performance of selected reaction barrier technologies for the removal of uranium and other trace elements from ground water. Objectives include site characterization and evaluation of barrier technologies.

  10. Intel Xeon Phi Webinar Series

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

    Webinar Series Intel Xeon Phi Webinar Series July 2, 2015 by Richard Gerber Intel, through a third-party trainer, is sponsoring a series of webinars focused on the Xeon Phi. You can register at https://attendee.gotowebinar.com/register/1855310790447082498 Schedule: Wed, July 1 - "Hello world from Intel Xeon Phi coprocessors". Overview of architecture, preview of course topics. Thur, July 2 - "Offload programming for Intel coprocessors". Introduction to offload programming.

  11. EERE: Education Calendar | Department of Energy

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

    EERE: Education Calendar EERE: Education Calendar April 2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 27 28 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 STEM Volunteer ...

  12. 2010 - 10 | Jefferson Lab

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

    Event. Wed, 10132010 - 2:00pm Maximum Vacation Leave Balance Tue, 10052010 - 2:00pm IEEE Enterprise Training Available Online Oct. 7 Fri, 10012010 - 2:00pm Accelerator Site...

  13. The Ames Laboratory

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    Secondary tabs Week Day Year September 2016 « Prev Next » Sun Mon Tue Wed Thu Fri Sat 28 29 30 31 1 2 3 4 5 6 7 8 9 10

  14. The Ames Laboratory

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    Secondary tabs Week Day Year October 2015 Prev Next Sun Mon Tue Wed Thu Fri Sat 27 28 29 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17...

  15. Buildings Events | Department of Energy

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

    December 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 29 30 1 2 3 4 5 Informational Webinar: GSA and DOE Seek Innovative Building Technologies 1:00PM to 3:00PM EST Addressing...

  16. Events | Department of Energy

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

    February 2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 31 1 2 3 4 5 6 Howard University Career Exploration Fair 2:00PM to 6:00PM EST National Laboratories Recruiting Day" at...

  17. Events Calendar | Department of Energy

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

    February 2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 31 1 2 3 4 5 6 Downstream Savings: From Water Efficiency to Energy Savings 3:00PM to 4:00PM EST MIE Regional Climate Change...

  18. Events Calendar | Department of Energy

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

    September 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 30 31 1 2 3 4 5 2015 North Carolina Building Performance Conference 9:00AM to 5:00PM EDT COLORADO COMMERCIAL-SCALE TRIBAL...

  19. Bioenergy Upcoming Events | Department of Energy

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

    November 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 1 2 3 4 5 6 7 tcbiomass2015: Technology for the Bioeconomy 8:00AM to 4:00PM CST Large-Scale Algal Cultivation, Harvesting...

  20. STEM Education Programs | Department of Energy

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

    January 2013 < prev next > Sun Mon Tue Wed Thu Fri Sat 30 31 1 2 3 4 5 Internships for Physics Majors 4:30PM to 10:45PM EDT Lee Teng Undergraduate Internship in...

  1. Events Calendar | Department of Energy

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

    December 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 29 30 1 2 3 4 5 BIA Providers Conference 8:00AM to 5:00PM PST Informational Webinar: GSA and DOE Seek Innovative Building...

  2. STEM Education Programs | Department of Energy

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

    < prev next > Sun Mon Tue Wed Thu Fri Sat 28 29 30 31 1 2 3 Internships for Physics Majors 4:30PM to 10:45PM EDT Lee Teng Undergraduate Internship in Accelerator Science...

  3. Paducah Events | Department of Energy

    Energy Savers [EERE]

    Paducah Site Paducah Community Outreach Paducah Events Paducah Events July 2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 26 27 28 29 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ...

  4. PPPO Events | Department of Energy

    Office of Environmental Management (EM)

    Services PPPO Stakeholder Outreach PPPO Events PPPO Events June 2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 29 30 31 1 2 3 4 Last Day to Sign Up for June 18 Portsmouth ...

  5. Bioenergy Upcoming Events | Department of Energy

    Energy Savers [EERE]

    Bioenergy Upcoming Events Bioenergy Upcoming Events July 2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 26 27 28 29 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Sustainable ...

  6. Portsmouth Events | Department of Energy

    Office of Environmental Management (EM)

    Portsmouth Site Portsmouth Community Outreach Portsmouth Events Portsmouth Events June 2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 29 30 31 1 2 3 4 Last Day to Sign Up for ...

  7. Office of Small and Disadvantaged Business Utilization Events...

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

    August 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 26 27 28 29 30 31 1 2 3 4 5 6 7 8 Carolinas-Virginia Minority Supplier Development Council's 2015 Business Opportunity...

  8. Zero Energy Ready Home Events | Department of Energy

    Energy Savers [EERE]

    Residential Buildings Zero Energy Ready Home Zero Energy Ready Home Events Zero Energy Ready Home Events September 2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 28 29 30 31 ...

  9. 2012 - 08 | Jefferson Lab

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

    8 Aug 2012 Fri, 2012-08-03 14:00 Jefferson Lab to Test Tornado Warning Siren on Friday Morning Wed, 2012-08-01 18:42 Media Advisory - Jefferson Lab Hosts Summer Intern Science Poster Session

  10. Paducah Events | Department of Energy

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

    July 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 28 29 30 1 2 3 4 Public Comment Period - Paducah Draft Environmental Assessment for Potential Land and Facilities Transfers...

  11. Events, Tours

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

    pm Mary Neu, OPS-SIO Career Transitions Panel Discussion Wed. July 23 Physics Auditorium Amy Clarke, MST-6 Multi-scale Prediction and Control of Metals During Solidification Fri....

  12. Past Events and Tours

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

    pm Mary Neu, OPS-SIO Career Transitions Panel Discussion Wed. July 23 Physics Auditorium Amy Clarke, MST-6 Multi-scale Prediction and Control of Metals During Solidification Fri....

  13. Events Calendar | Department of Energy

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

    July 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 28 29 30 1 2 3 4 Rising Voices 3: Learning and Doing - Education and Adaptation through Diverse Ways of Knowing 8:30AM to...

  14. STIP Glossary | OSTI, US Dept of Energy Office of Scientific...

    Office of Scientific and Technical Information (OSTI)

    for DOE Programs Wed, 2016-06-08 09:06 Guidance, Page, STIP Homepage 3 Guidance for Financial Assistance AwardeesRecipients (e.g., university grantees) Fri, 2016-04-29 10:37 ...

  15. 2011 - 03 | Jefferson Lab

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

    March 2011 Fri, 03042011 - 3:00pm Lane Expansion Begins March 7 at South End of Lawrence Drive Wed, 03022011 - 3:00pm Annual Property and Key Validation Begins March 15; Start...

  16. FRIED399.pdf

    Office of Environmental Management (EM)

    SABINE PASS LIQUEFACTION PROJECT REGARDING APPLICATION TO DEPARTMENT OF ENERGY TO INCREASE AUTHORIZED VOLUMES OF LIQUEFIED NATURAL GAS FOR EXPORT FROM SABINE PASS LNG TERMINAL TO NON-FREE TRADE AGREEMENT NATIONS AGENCY: U.S. Department of Energy, Office of Fossil Energy ACTION: Finding of No Significant Impact SUMMARY: Pursuant to section 1508.9 of the regulations of the Council on Environmental Quality (CEQ), 40 CFR 1508.9, the Federal Energy Regulatory Commission (FERC) prepared an

  17. Country-Fried Biofuels

    Broader source: Energy.gov [DOE]

    Some Clean Cities coalitions, supported by the Vehicle Technologies Program in EERE, have worked with their local governments to make holiday drippings into clean fuel.

  18. 2012 - 12 | Jefferson Lab

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

    2 Dec 2012 Wed, 2012-12-19 00:00 JAG Thanks all Holiday Event Participants, volunteers Tue, 2012-12-18 14:00 ODH Signs Posted for Hall D, Bldg. 203, on Dec. 18 Fri, 2012-12-14 14:00 Effective Dec. 14: Bldg. 97 is Construction Zone (Counting House) Fri, 2012-12-14 14:00 Important Notices for All JLab Radiologically Trained Individuals: Wed, 2012-12-12 14:00 ODH Postings for Buildings 200 & 204 Changing as of Dec. 12 Wed, 2012-12-12 14:00 All Staff: Shutdown Time Accounting & Work Guidance

  19. 2012 | Jefferson Lab

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

    Dec 2012 Wed, 2012-12-19 00:00 JAG Thanks all Holiday Event Participants, volunteers Tue, 2012-12-18 14:00 ODH Signs Posted for Hall D, Bldg. 203, on Dec. 18 Fri, 2012-12-14 14:00 Effective Dec. 14: Bldg. 97 is Construction Zone (Counting House) Fri, 2012-12-14 14:00 Important Notices for All JLab Radiologically Trained Individuals: Wed, 2012-12-12 14:00 ODH Postings for Buildings 200 & 204 Changing as of Dec. 12 Wed, 2012-12-12 14:00 All Staff: Shutdown Time Accounting & Work Guidance

  20. 2014 - 11 | Jefferson Lab

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

    1 Nov 2014 Fri, 2014-11-14 15:33 Maximum Vacation Carryover Balance & Upcoming Holiday Shutdown Reminder Thu, 2014-11-13 14:58 Pressure Systems Awareness Training Offered Fri, 2014-11-07 15:31 Annual Reminder to Review Withholding Exemptions Wed, 2014-11-05 15:25 JLab Hall B Radiological Posting Change Effective Nov. 6 Wed, 2014-11-05 10:48 The Sentara Mobile Mammography Unit Wed, 2014-11-05 09:13 JLab to Test Tornado Warning Siren at 10:30 a.m. on Friday, Nov. 7

  1. 1996 - 05 | Jefferson Lab

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

    5 May 1996 Fri, 1996-05-24 00:00 Nuclear Physics Laboratory is Probing the Fundamental Structure of Matter (Release) Fri, 1996-05-24 00:00 Secretary O'Leary Dedicates Thomas Jefferson National Accelerator Facility (Release) Wed, 1996-05-08 00:00 Groundbreaking Planned for New $13.7M Applied Research Center in Newport News

  2. 2008 | Jefferson Lab

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

    Dec 2008 Wed, 2008-12-03 14:34 Neutrons and Quarks Share Dual Nature Oct 2008 Wed, 2008-10-08 14:35 ILC Electron Source Gets Help from JLab Jul 2008 Thu, 2008-07-31 09:24 JLab's 12 GeV Upgrade Project Clears Critical Hurdle Fri, 2008-07-11 09:32 Safety Comes First Jun 2008 Fri, 2008-06-13 09:42 A Bigger Chill Wed, 2008-06-04 10:14 Nuclear Pairs May 2008 Fri, 2008-05-23 11:05 JLab Meadows Offer Environmental Benefits and Beauty Apr 2008 Wed, 2008-04-30 11:09 JLab Scientist Develops Portrait of a

  3. 2003 - 02 | Jefferson Lab

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

    2 Feb 2003 Wed, 2003-02-26 13:00 Jefferson Lab seeks applicants for summer, science teacher enrichment program Wed, 2003-02-26 13:00 'Comic Book Physics' examined at Jefferson Lab's March 25 Science Series event Tue, 2003-02-25 15:38 Jefferson Lab plans Open House on Saturday, April 26 Fri, 2003-02-21 15:40 Want the latest info on JLab's public, educational events? Wed, 2003-02-12 13:00 Free-electron laser scientist is one of two newly elected American Physical Society Fellows at JLab Wed,

  4. Variations in vitrinite reflectance values for the Upper Cretaceous Mesaverde Formation, southeastern Piceance basin, northwestern Colorado; implications for burial history and potential hydrocarbon generation. The Frying Pan Member of the Maroon Formation; a lower Permian( ) basin-margin dune field in northwestern Colorado

    SciTech Connect (OSTI)

    Nuccio, V.F.; Johnson, R.C.; Johnson, S.Y.

    1989-01-01

    Most of the Upper Cretaceous Mesaverde Formation in the southeastern Piceance basin is thermally mature enough to have produced hydrocarbons by thermal generation, but only part of the Mesaverde is thermally mature enough to have expelled significant amounts of natural gas. The Early Permian( ) Frying pan Member of the Maroon Formation consists of quartz rich, very fine to fine-grained sandstone deposited in eolian dune and interdune environments. The Frying pan Member (formerly called the sandstone of the Frying pan River) is removed from the State Bridge Formation and assigned to the Maroon Formation.

  5. Movement of Fall Chinook Salmon Fry Oncorhynchus Tshawytscha : A Comparison of Approach Angles for Fish Bypass in a Modular Rotary Drum Fish Screen.

    SciTech Connect (OSTI)

    Neitzel, D.A.; Blanton, S.L.; Abernethy, C. Scott; Daly, D.S.

    1996-08-01

    The Pacific Northwest National Laboratory (PNNL) performed tests to determine whether a significant difference in fish passage existed between a 6-ft screening facility built perpendicularly to canal flow and an identical screening facility with the screen mounted at a 45-degree angle to the approach channel. A modular drum screen built by the Washington Department of Fish and Wildlife was installed at PNNL`s Aquatic Ecology research laboratory in Richland, Washington. Fall chinook salmon fry were introduced into the test system, and their movements were monitored. A total of 14 tests (400 fish per test) that lasted 20 hours were completed during April and May, 1996. There was no significant difference in fish passage rate through the two approach configurations. Attraction flow to the bypass across the face of the screen was more evident for the angled approach, although this did not appear to play a significant role in attracting fish to the bypass. Approach velocities at the face of the screen did not exceed the 0.4 fps criteria for either approach configuration and posed not threat to fish. No fish passed over, around, or through the drum screen during any test.

  6. March 29

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

    29 March 29 Attending: Eric, Jeff P., Jay, Andrei, Marojorie, Craig Utilization: Cluster has been full to capacity. Outages/Incidents: Eliza11, 12 and 13 have all been retired. Upcoming Downtimes: NGF downtime 9am Wed. - 8pm Thurs. During this time ganglia will not be working along with some other displays that are hosted on NGF. There will also be rolling outages on the batch nodes to push out CVMFS. Procurements/New Hardware: No news. The new shares are not yet in SGE. Grid Issues: No response

  7. 2011 | Jefferson Lab

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

    May 2011 Wed, 2011-05-11 10:31 Two Jefferson Lab Scientists Win Prestigious Early Career Awards Apr 2011 Fri, 2011-04-08 10:07 Superconductivity Centennial Wed, 2011-04-06 10:18 Industrial Green Feb 2011 Sat, 2011-02-19 13:56 Two-For-One Confounds Physicists Mon, 2011-02-07 08:40 Bound Neutrons Pave Way to Free Ones

  8. 2016 - 02 | Jefferson Lab

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

    2 Feb 2016 Fri, 2016-02-26 10:34 Applications Now Being Accepted Annual HUGS Program Thu, 2016-02-25 10:28 CEBAF Three-Year Schedule Message from Hugh Montgomery Fri, 2016-02-19 11:43 Virginia 2016 Governors Fellows Program Fri, 2016-02-19 11:41 Graduate Student Research Program Application Information Fri, 2016-02-19 11:39 Benefits Coverage and Health Care Tax Statements Wed, 2016-02-17 10:12 Sentara Optima providing Screenings at JLab Tue, 2016-02-16 10:12 Safe Lifting Reminder Mon, 2016-02-15

  9. 1998 SSRL Accelerator Physics Schedule

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

    8 SSRL Accelerator Physics Schedule Proposal Deadline Schedule Announcement Experimental Period Duration Tue, Nov 11, 17:00 Wed, Nov 12, '97 17:00 Mon, Nov 17, '97 18:00-Wed, Nov 19, '97 02:00 32 hrs Mon, Dec 01, '97 17:00 Tue, Dec 02, '97 13:00 Mon, Dec 08, '97 06:00-Wed, Dec 10, '97 02:00 44 hrs Mon, Jan 05, 17:00 Tue, Jan 06, 13:00 Mon, Jan 12, 18:00-Wed, Jan 14, 02:00 32 hrs Fri, Jan 16, 17:00 Tue, Jan 20, 13:00 Mon, Jan 26, 06:00-Wed, Jan 28, 02:00 44 hrs Mon, Feb 02, 17:00 Tue, Feb 03,

  10. 2013 - 12 | Jefferson Lab

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

    2 Dec 2013 Fri, 2013-12-27 09:41 Email Issue And JLab Cybersecurity Alert: Phishing Wed, 2013-12-18 10:39 Notable Event Notice: Dec. 16 Failure to Comply with Posted Signs Tue, 2013-12-17 10:05 Jefferson Lab Three-Year Accelerator Schedule: Calendar Year 2014 - 2016 Wed, 2013-12-11 09:23 GEN034 Annual Security Awareness for Employees & Subcontractors Mon, 2013-12-09 09:34 Travel Policy/Requirements Briefing for Travelers Fri, 2013-12-06 16:12 Pressure Systems Awareness Training Thu,

  11. 2014 - 08 | Jefferson Lab

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

    8 Aug 2014 Tue, 2014-08-26 10:31 JLab Annual Property Inventory Continues Through Sept. 12; Please Return Yellow Moving Totes to FM&L Fri, 2014-08-22 15:25 Drain Trench Work on North Side of CEBAF Center Fri, 2014-08-22 14:34 In an effort to provide guidance on all HALL walk-thru training please see the following Wed, 2014-08-20 11:07 Get JLab Site-Wide Alert Pager Messages on Your Personal Cell Phone Wed, 2014-08-13 10:33 Registration Underway for Sept. 12 United Way Day of Caring; Sign up

  12. 2015 - 03 | Jefferson Lab

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

    3 Mar 2015 Mon, 2015-03-30 16:52 TIAA-CREF INDIVIDUAL COUNSELING - June - December 2015 Thu, 2015-03-26 15:02 Annual Property Training & Validations Must be Completed Between March 26 & April 24 Wed, 2015-03-25 11:29 Training is sponsoring a 12 week Dale Carnegie Course Fri, 2015-03-20 15:35 RadCon Services Limited March 25-April 17 as Group Moves to ARC Building Fri, 2015-03-13 09:57 ASSESSING AND APPROVING OUTSIDE WORK Wed, 2015-03-11 13:45 New JLab SOTRs Can Get Required Training on

  13. 2012 - 02 | Jefferson Lab

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

    2 Feb 2012 Wed, 2012-02-22 14:00 JLab Property & Key Validations; Property Refresher Training Tue, 2012-02-21 14:00 All Hands Managers Meeting Fri, 2012-02-17 14:00 Notification to the Jefferson Lab community: Tue, 2012-02-14 14:00 Benefits Open Enrollment Begins Today - Important Changes Tue, 2012-02-14 14:00 JLAB CELEBRATES ENGINEERS WEEK: FEB 20-24 Wed, 2012-02-01 14:00 Important Changes Regarding Anthem Medical Benefits & Open Enrollment Wed, 2012-02-01 14:00 Approval Procedure

  14. 2015 - 01 | Jefferson Lab

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

    1 Jan 2015 Fri, 2015-01-30 15:07 JLab Posts OSHA Form 300 for 2014 Wed, 2015-01-21 11:05 Volunteers Needed to Help With High- and Middle-School Science Bowls on Feb. 7 & March 7 at Lab Fri, 2015-01-16 14:29 A Cookie for Your Thoughts at Quark Cafe on Jan. 21 and 22 Fri, 2015-01-16 13:53 Travel Workshop Announcement Fri, 2015-01-16 13:48 Hall B Safety Awareness training (SAF111) Wed, 2015-01-14 14:49 Internet Explorer Update Set for Tonight to Fix Zimbra Web Client Issue Mon, 2015-01-12

  15. 2005 - 07 | Jefferson Lab

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

    7 Jul 2005 Wed, 2005-07-13 00:00 Scientists make landmark observations about weak force (PhysOrg.com) Thu, 2005-07-07 00:00 Higher Precision Analysis Doesn't Yield Pentaquark (ScienceDaily.com) Fri, 2005-07-01 00:00 Higher Precision Analysis Doesn't Yield Pentaquark (PhysOrg.com) Fri, 2005-07-01 00:00 Inscrutable Pentaquark Eludes Teams (Charleston. net

  16. Microsoft PowerPoint - pancake.thursPM

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

    Productivity - Are We Addressing the Right Issues? Cherri M. Pancake Northwest Alliance for Computational Science & Engineering (NACSE) Oregon State University pancake@nacse.org HPC Productivity - Are We Asking the Right Questions? Cherri M. Pancake Northwest Alliance for Computational Science & Engineering (NACSE) Oregon State University pancake@nacse.org We're Fellow Travelers ... HPC isn't a goal - it's a road High(way to) Performance Computing But ...this year's talks all cited

  17. Events Calendar | Department of Energy

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

    2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 27 28 29 30 31 1 2 3 4 5 6 7 8 9 WORKSHOP: SUSTAINABILITY IN MANUFACTURING, JANUARY 6-7 8:00AM to 4:00PM EST MIE Regional Climate...

  18. SPO Calendar | Department of Energy

    Office of Environmental Management (EM)

    April 2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 27 28 29 30 31 1 2 3 4 5 6 7 8 9 Data Center Energy-Efficiency Best Practices 1:30PM to 3:00PM EDT 10 11 12 13 14 15 16 17 18 ...

  19. The Ames Laboratory

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  6. EERE: Education Calendar | Department of Energy

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  8. Bioenergy Upcoming Events | Department of Energy

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  10. EERE: Education Calendar | Department of Energy

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  11. Fuel Cells Calendar | Department of Energy

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  14. SPO Calendar | Department of Energy

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  15. Bioenergy Upcoming Events | Department of Energy

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  16. Paducah Events | Department of Energy

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  17. PPPO Events | Department of Energy

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  18. Solid-State Lighting Calendar | Department of Energy

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  19. Events Calendar | Department of Energy

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  20. Fuel Cells Calendar | Department of Energy

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  3. EERE: Education Calendar | Department of Energy

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  4. EERE: Education Calendar | Department of Energy

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

    December 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 29 30 1 2 3 4 5 6 7 8 9 10 11 12 BioenergizeME Office Hours Webinar: Integrating Bioenergy into the 9th-12th Grade Classroom...

  5. Paducah Events | Department of Energy

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  8. Events | Department of Energy

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  9. Events | Department of Energy

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  12. GEOTHERMAL Events | Department of Energy

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  13. Fuel Cells Calendar | Department of Energy

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  14. Events Calendar | Department of Energy

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  15. Fuel Cells Calendar | Department of Energy

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  16. Buildings Events | Department of Energy

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  17. Diversity and Inclusion Events Calendar | Department of Energy

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  18. Zero Energy Ready Home Events | Department of Energy

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  19. Bioenergy Upcoming Events | Department of Energy

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  20. Diversity and Inclusion Events Calendar | Department of Energy

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  1. EERE: Education Calendar | Department of Energy

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  2. Events Calendar | Department of Energy

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  3. GEOTHERMAL Events | Department of Energy

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  4. Events | Department of Energy

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  6. Buildings Events | Department of Energy

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  7. Events Calendar | Department of Energy

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  8. Zero Energy Ready Home Events | Department of Energy

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  10. EERE: Education Calendar | Department of Energy

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  11. Bioenergy Upcoming Events | Department of Energy

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  12. GEOTHERMAL Events | Department of Energy

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  13. Diversity and Inclusion Events Calendar | Department of Energy

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  14. EERE: Education Calendar | Department of Energy

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  15. SPO Calendar | Department of Energy

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  16. PPPO Events | Department of Energy

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  17. Solid-State Lighting Calendar | Department of Energy

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    February 2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 31 1 2 3 4 5 6 SSL R&D Workshop 8:00AM to 5:00PM EST 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 1 2 3...

  18. SPO Calendar | Department of Energy

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    December 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 29 30 1 2 3 4 5 E.O. 13693: Recent Developments, Implementation Updates, and Opportunities 1:30PM to 3:00PM EST 6 7 8 9 10...

  19. PPPO Events | Department of Energy

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    November 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 1 2 3 4 5 6 7 Portsmouth SSAB Board Meeting - November 6:00PM to 8:00PM EST 8 9 10 11 12 13 14 Portsmouth SSAB Subcommittees...

  20. STEM Education Programs | Department of Energy

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  3. GEOTHERMAL Events | Department of Energy

    Energy Savers [EERE]

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  4. Solid-State Lighting Calendar | Department of Energy

    Energy Savers [EERE]

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  6. Paducah Events | Department of Energy

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

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  9. EERE: Education Calendar | Department of Energy

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  10. Events | Department of Energy

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  11. GEOTHERMAL Events | Department of Energy

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

    September 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Geothermal Resources Council Annual Meeting (All...

  12. Building America Events | Department of Energy

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

    October 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 27 28 29 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Tour of Zero: How you can Help Customers Find Better Homes at a Lower...

  13. Office of Small and Disadvantaged Business Utilization Events...

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

    January 2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 27 28 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 2 3 4 5 6...

  14. Building America Events | Department of Energy

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

    November 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 1 2 3 4 5...

  15. Portsmouth Events | Department of Energy

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

    August 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 26 27 28 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Portsmouth Site Public Tour 8:30AM to 12:00PM EDT 16 17 18 19 20 21 22...

  16. Paducah Events | Department of Energy

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

    September 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 1 2 3...

  17. Building America Events | Department of Energy

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

    September 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 ZERH Webinar: Turning the Building America...

  18. 2009 | Jefferson Lab

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

    Dec 2009 Thu, 2009-12-03 09:08 Big changes for the Jefferson Lab campus Oct 2009 Sat, 2009-10-03 11:58 Hypernuclei in Hall C Jul 2009 Wed, 2009-07-01 13:11 Fifteen Years of Beam on Target Mar 2009 Fri, 2009-03-13 13:43 Spin Asymmetries of the Nucleon Experiment

  19. Events | Department of Energy

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

    June 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 31 1 2 3 4 5 6 Dice Virtual Career Fair: Security Clearance 11:00AM to 4:00PM EDT 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Capital...

  20. Office of Small and Disadvantaged Business Utilization Events...

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

    June 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 31 1 2 3 4 5 6 CelebrAsian 30th Annual Procurement Conference 8:00AM to 5:00PM EDT 7 8 9 10 11 12 13 14 15 16 17 18 19 20 14th...

  1. Weatherization and Intergovernmental Programs Office Events ...

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

    July 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 28 29 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 NARUC Summer Committee Meeting 8:00AM to 5:00PM EDT 19 20 21 22 23 24 25...

  2. GEOTHERMAL Events | Department of Energy

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

    October 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 27 28 29 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31...

  3. Diversity and Inclusion Events Calendar | Department of Energy

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

    August 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 26 27 28 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 2 3 4 5...

  4. Fuel Cells Calendar | Department of Energy

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

    October 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 27 28 29 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31...

  5. Bioenergy Upcoming Events | Department of Energy

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

    August 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 26 27 28 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Seventh Annual Biofuels Science and Sustainability...

  6. SPO Calendar | Department of Energy

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

    July 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 28 29 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1...

  7. Portsmouth Events | Department of Energy

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

    July 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 28 29 30 1 2 3 4 5 6 7 8 9 10 11 Portsmouth SSAB Board - July 4:00PM to 6:00PM EDT Portsmouth Site Public Tour 8:30AM to 12:00PM...

  8. EERE: Education Calendar | Department of Energy

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

    August 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 26 27 28 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 STEM Volunteer Training: Engaging Middle School Students 3:00PM to...

  9. SPO Calendar | Department of Energy

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

    September 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 30 31 1 2 3 4 5 6 7 8 9 10 11 12 GSA Carbon Footprint Tool Webinar - Executive Order 13693 and You 2:00PM to 3:00PM EDT 13...

  10. Fuel Cells Calendar | Department of Energy

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

    August 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 26 27 28 29 30 31 1 2 3 4 5 6 7 8 Webinar: H2 Refuel H-Prize Safety Guidance 1:00PM to 2:00PM EDT 9 10 11 12 13 14 15 Webinar:...

  11. Building America Events | Department of Energy

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

    August 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 26 27 28 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 2 3 4 5...

  12. Diversity and Inclusion Events Calendar | Department of Energy

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

    July 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 28 29 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 American Disabilities Act 8:57AM...

  13. GEOTHERMAL Events | Department of Energy

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

    August 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 26 27 28 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Workshop on Direct Use Technology in the...

  14. Buildings Events | Department of Energy

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

    July 2015 < prev next > Sun Mon Tue Wed Thu Fri Sat 28 29 30 1 2 3 4 5 6 7 8 9 10 11 Social Media and Messages That Matter: Top Tips and Tools Peer Exchange Call 12:30PM to 2:00PM...

  15. Sustainability Performance Office Calendar | Department of Energy

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

    Sun Mon Tue Wed Thu Fri Sat 26 27 28 29 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 2 3 4 5 6 Careers & Internships For Staff & ...

  16. The Ames Laboratory

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    Secondary tabs Week Day Year September 2016 « Prev Next » Sun Mon Tue Wed Thu Fri Sat 28 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 1

  17. Events | Department of Energy

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

    Careers » Events Events August 2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 2 3

  18. 2006 - 09 | Jefferson Lab

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

    9 Sep 2006 Sat, 2006-09-23 00:00 New network puts researchers on the fast track (The Virginian-Pilot) Fri, 2006-09-08 00:00 Scientists return to water their root (Hindustan Times) Wed, 2006-09-06 00:00 Physicists charged over strange quarks (ABC Science Online

  19. 2009 - 05 | Jefferson Lab

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

    5 May 2009 Wed, 2009-05-20 00:00 Jefferson Lab group wins national award (Daily Press) Tue, 2009-05-05 00:00 A Tribute to Professor Cornelius Bennhold Fri, 2009-05-01 00:00 Jefferson Lab's free-electron laser joins new research venture (Optics.org

  20. 2009 | Jefferson Lab

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

    Dec 2009 Tue, 2009-12-01 16:52 On Target December 2009 Sep 2009 Tue, 2009-09-01 18:28 On Target September 2009 Jul 2009 Wed, 2009-07-01 15:00 On Target July 2009 May 2009 Fri, 2009-05-01 15:00 On Target May 2009

  1. 2004 | Jefferson Lab

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

    Dec 2004 Fri, 2004-12-03 13:00 Anthony Thomas accepts position of Chief Scientist and Theory Group Leader at Jefferson Lab Fri, 2004-12-03 13:00 Zooming in on a proton packed with surprises Oct 2004 Wed, 2004-10-27 14:00 Jefferson Lab Announces Fall Science Series Event Nov. 23 Sep 2004 Tue, 2004-09-21 14:00 Catch Jefferson Lab's entertaining, educational Cryogenics Demonstration at the Virginia State Fair Fri, 2004-09-10 14:00 Jefferson Lab Announces Two Fall Science Series Events Aug 2004

  2. 2008 | Jefferson Lab

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

    Oct 2008 Fri, 2008-10-24 00:00 Jefferson Lab electron beam charges up (Inside Business) Mon, 2008-10-06 00:00 Jefferson Lab, ODU team up for center (Inside Business) Sep 2008 Fri, 2008-09-26 00:00 FBI documents detail case against scientist (Daily Press) Thu, 2008-09-25 00:00 Physicist pulled in millions in federal grants (Daily Press) Fri, 2008-09-19 00:00 Grant will ensure lab's financial, scientific future (Daily Press) Wed, 2008-09-17 00:00 Jefferson Lab Upgrade OK'd (photonics.com) Tue,

  3. 2013 - 01 | Jefferson Lab

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

    1 Jan 2013 Wed, 2013-01-30 00:00 JLab Posts OSHA Form 300 Mon, 2013-01-28 14:00 Reminder to Employees & Contractors: Annual Security Awareness Training Due by Jan. 31 Fri, 2013-01-25 14:00 All Hands Meetings Jan. 30 - Discussion of NSAC Deliberations Thu, 2013-01-24 14:00 Instructions to Determine JLab Status Thu, 2013-01-24 14:00 JLab Annual Sustainability Plan Now Available for Review Fri, 2013-01-18 14:00 Jan. 10 Long Shutdown Safety Meeting Online for Those Who Missed It Fri, 2013-01-18

  4. 1999 SSRL Accelerator Physics Schedule

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

    SSRL Accelerator Physics Schedule Proposal Deadline Schedule Announcement Experimental Period Duration Mon, Nov 30, '98 17:00 Tue, Dec 01, '98 13:00 Mon, Dec 07, '98 06:00-Wed, Dec 09, '98 02:00 44 hrs Mon, Jan 04, 17:00 Tue, Jan 05, 13:00 Mon, Jan 11, 18:00-Wed, Jan 13, 02:00 32 hrs Fri, Jan 15, 17:00 Tue, Jan 19, 13:00 Mon, Jan 25, 06:00-Wed, Jan 27, 02:00 44 hrs Mon, Feb 01, 17:00 Tue, Feb 02, 13:00 Tue, Feb 09, 18:00-Thu, Feb 11, 02:00 32 hrs Tue, Feb 16, 17:00 Wed, Feb 17, 17:00 Mon, Feb

  5. 2000 SSRL Accelerator Physics Schedule

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

    SSRL Accelerator Physics Schedule Proposal Deadline Schedule Announcement Experimental Period Duration Mon, Nov 08, '99 17:00 Tue, Nov 09, '99 13:00 Mon, Nov 15, '99 18:00-Wed, Nov 17, '99 02:00 32 hrs Mon, Nov 29, '99 17:00 Tue, Nov 30, '99 13:00 Mon, Dec 06, '99 06:00-Wed, Dec 08, '99 02:00 44 hrs Mon, Jan 03, 17:00 Tue, Jan 04, 13:00 Mon, Jan 10, 18:00-Wed, Jan 12, 02:00 32 hrs Fri, Jan 14, 17:00 Tue, Jan 18, 13:00 Mon, Jan 24, 06:00-Wed, Jan 26, 02:00 44 hrs Mon, Feb 14, 17:00 Tue, Feb 15,

  6. 2001 SSRL Accelerator Physics Schedule

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

    SSRL Accelerator Physics Schedule Proposal Deadline Schedule Announcement Experimental Period Duration Mon, Nov 06, '00 17:00 Tue, Nov 07, '00 13:00 Mon, Nov 13, '00 18:00-Wed, Nov 15, '00 02:00 32 hrs Mon, Dec 04, '00 17:00 Tue, Dec 05, '00 13:00 Mon, Dec 11, '00 06:00-Wed, Dec 13, '00 02:00 44 hrs Mon, Jan 01, 17:00 Tue, Jan 02, 13:00 Mon, Jan 08, 18:00-Wed, Jan 10, 02:00 32 hrs Fri, Jan 12, 12:00 Tue, Jan 16, 13:00 Mon, Jan 22, 06:00-Wed, Jan 24, 02:00 44 hrs Mon, Jan 29, 17:00 Tue, Jan 30,

  7. 2016 - 04 | Jefferson Lab

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

    4 Apr 2016 Wed, 2016-04-27 17:04 The Ethics Corner - April 27, 2016 Thu, 2016-04-21 16:05 Investigation Results from Fatal Mishap Thu, 2016-04-21 14:06 Revised Security Signage Around Jefferson Lab Wed, 2016-04-20 13:52 Safety Recall on 2 Types of APC Surge Protectors Wed, 2016-04-20 13:33 Open House Info Call for Volunteers Training Underway Wed, 2016-04-20 13:09 JLab Will Begin Testing its Public Address System on a Monthly Basis Fri, 2016-04-15 13:11 Run-A-Round Registration Volunteer Sign-up

  8. 2015 - 02 | Jefferson Lab

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

    2 Feb 2015 Fri, 2015-02-27 12:10 America Saves Week Fri, 2015-02-27 09:12 America Saves Week is ending but it's the start of a good habit. Thu, 2015-02-26 09:10 Do you have the traits of a successful saver? Wed, 2015-02-25 09:09 How much do you know about saving for your future? Tue, 2015-02-24 09:05 What do you want your future to look like? Mon, 2015-02-23 09:04 America Saves Week is here! Wed, 2015-02-18 12:54 The 2015 Benefits Online Open Enrollment Period for Jefferson Lab is underway Fri,

  9. 2001 | Jefferson Lab

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

    Nov 2001 Fri, 2001-11-16 13:00 Christoph W. Leemann Named Jefferson Lab Director Aug 2001 Tue, 2001-08-14 14:00 DOE Announces First Awards in Scientific Discovery through Advanced Computing Program Apr 2001 Sat, 2001-04-21 14:00 &quot;Science is Cool&quot; at Jefferson Lab's Open House, Saturday, April 21 Mar 2001 Wed, 2001-03-21 13:00 Six NN High School Students Win Jefferson Lab Externships Wed, 2001-03-21 13:00 Jones O. &amp; Associates of Hampton wins Jefferson Lab's annual

  10. 2005 - 03 | Jefferson Lab

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

    3 Mar 2005 Wed, 2005-03-30 13:00 Media invited to Jefferson Lab prior to April 16 Open House, and also welcome day of event Wed, 2005-03-16 13:00 Jefferson Lab plans Open House for Saturday, April 16 Fri, 2005-03-11 13:00 Jefferson Lab Researchers Join "Quantum Diaries" Bloggers Tue, 2005-03-08 18:41 Maryland team wins Virginia/Maryland Regional Middle School Science Bowl; moves on to Nationals Mon, 2005-03-07 18:44 Jefferson Lab hosts two World Year of Physics events in March Thu,

  11. 2006 | Jefferson Lab

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

    Nov 2006 Mon, 2006-11-27 14:00 Reaching New Heights in Accelerator Technology Wed, 2006-11-08 14:45 Researchers' Hottest New Laser Beams 14.2 kW Oct 2006 Fri, 2006-10-13 14:00 Jefferson Lab Programmer a Finalist in Google's Global Code Jam Sep 2006 Tue, 2006-09-26 14:00 Jefferson Lab announces two Fall Science Series lectures; examine evidence of an ancient supernova, the magic of Harry Potter Thu, 2006-09-21 14:00 Lab Enhances Scientific Data Sharing with Cutting-Edge Connection Wed,

  12. 2009 - 04 | Jefferson Lab

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

    4 Apr 2009 Wed, 2009-04-29 14:00 Jefferson Lab's Free-Electron Laser Joins With Others in New Research Venture Mon, 2009-04-27 14:00 Jefferson Lab Website Offers Preparation Help For Virginia Standards of Learning Tests Mon, 2009-04-27 14:00 Jefferson Lab Recognizes Top Small Business Subcontractor for 2008 Wed, 2009-04-15 14:00 Proton Research Earns 2008 JSA Thesis Prize Tue, 2009-04-14 14:00 Jefferson Lab Breaks Ground On $310 Million Project Fri, 2009-04-03 14:00 Media Advisory - Jefferson

  13. 2012 | Jefferson Lab

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

    Nov 2012 Mon, 2012-11-26 14:00 Media Advisory: Jefferson Lab Signs Partnership Agreement With Virginia STEAM Academy Oct 2012 Thu, 2012-10-04 14:00 Jefferson Lab to Test Tornado Warning Siren on Friday Morning Wed, 2012-10-03 14:00 Find Out How Much Physics You Already Know! at Jefferson Lab's Science Series Lecture on Oct. 9 Sep 2012 Wed, 2012-09-05 14:00 Jefferson Lab to Test Tornado Warning Siren on Friday Morning Aug 2012 Fri, 2012-08-03 14:00 Jefferson Lab to Test Tornado Warning Siren on

  14. 1998 - 02 | Jefferson Lab

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

    2 Feb 1998 Wed, 1998-02-25 00:00 Innovators Honored by Museum (Virginian-Pilot) Tue, 1998-02-24 00:00 Jefferson Lab Chief Named Top Scientist (Daily Press) Thu, 1998-02-19 00:00 NN Board Seeks Volunteers to Help Plan Schools' Future (Daily Press) Thu, 1998-02-19 00:00 More Fed Cash Tagged for Research (Daily Press) Wed, 1998-02-11 00:00 Schwartz at Helm of IDA (Virginia Gazette) Fri, 1998-02-06 00:00 DOE Gives Jefferson Lab a Modest Budget Increase (Daily Press) Tue, 1998-02-03 00:00 Clinton

  15. 2005 - 04 | Jefferson Lab

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

    4 Apr 2005 Fri, 2005-04-22 00:00 Latest Data Deal 'Pentaquark' Sightings a Fresh Blow (Science Magazine) Thu, 2005-04-21 00:00 Nuclear imaging of iodine uptake in mouse tissues (Medical News Today) Wed, 2005-04-20 00:00 Pentaquark hunt draws a blank (NewScientist.com) Wed, 2005-04-20 00:00 Boffins five quarks short of a sub-atomic particle (The Register) Tue, 2005-04-19 00:00 Einstein and the violin (Symmetry) Tue, 2005-04-19 00:00 Deconstruction: Control Room (Symmetry) Mon, 2005-04-18 00:00

  16. 2013 - 03 | Jefferson Lab

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

    3 Mar 2013 Wed, 2013-03-27 10:49 Use On-Hook Dialing to Stop 911 Misdials & Wrong Numbers Wed, 2013-03-13 11:56 Reminder: Please Take Tornado Response Survey Thu, 2013-03-07 13:04 Daylight Saving Time Begins Sunday, March 10 Tue, 2013-03-05 13:04 Message from Hugh Montgomery: Jefferson Lab - Sequestration Fri, 2013-03-01 13:04 Annual Property Custodian Refresher Training and Property & Key Validations Must be Completed Between March 1-31

  17. 2013 - 11 | Jefferson Lab

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

    1 Nov 2013 Wed, 2013-11-27 09:24 Reminder: OSHA Hazard Communication Training Required by Dec. 1 Tue, 2013-11-26 15:20 Jefferson Lab Laboratory Directed Research & Development (LDRD) Tue, 2013-11-19 13:43 JSA Initiatives Fund Program: FY14 Call for Proposals Due by Dec. 23 Tue, 2013-11-19 13:42 CEBAF Center Parking Tue, 2013-11-19 13:39 Possible Congestion in Cafeteria Wed. & Fri.: 12-1 p.m. Tue, 2013-11-19 13:36 Newport News Emergency Responders to Conduct Exercise at Lab, Nov. 20-22

  18. 2016 - 08 | Jefferson Lab

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

    8 Aug 2016 Wed, 2016-08-31 13:14 Safety Reminders After Three Minor Shock Events in Last Month Fri, 2016-08-26 15:49 Jefferson Lab to Test Tornado Warning Siren at 10:30 a.m. on Friday, Sept. 2 Mon, 2016-08-15 10:57 Aug. 17 at 5:30 p.m.: JLab Will Test its Public Address System Wed, 2016-08-10 15:06 JLab Travelers and Travel Coordinators: Effective Immediately - Critical new requirements for all travel to or passing through France Mon, 2016-08-08 15:35 JLab Seeking Volunteers for United Way Day

  19. 2016 | Jefferson Lab

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

    Aug 2016 Wed, 2016-08-31 13:14 Safety Reminders After Three Minor Shock Events in Last Month Fri, 2016-08-26 15:49 Jefferson Lab to Test Tornado Warning Siren at 10:30 a.m. on Friday, Sept. 2 Mon, 2016-08-15 10:57 Aug. 17 at 5:30 p.m.: JLab Will Test its Public Address System Wed, 2016-08-10 15:06 JLab Travelers and Travel Coordinators: Effective Immediately - Critical new requirements for all travel to or passing through France Mon, 2016-08-08 15:35 JLab Seeking Volunteers for United Way Day

  20. T O FRI SI' NAI CI'

    Office of Legacy Management (LM)

    CONiRACTOR - - - L E A S E D 1. ). > CECnEDINvoLVEMENIFIISILE CO"LOl w Health Physics Protection & KCMED managed OperatiOnS ?? Little or None a AECtlED r e s p o ...

  1. Fry receives Charles W. Briggs Award

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

    on Nondestructive Testing was formed in 1938 and has jurisdiction over standards in radiology, liquid penetrate, magnetic particle, acoustic emission, ultrasonics,...

  2. Country-Fried Biofuels | Department of Energy

    Energy Savers [EERE]

    oil at their sixth annual Day After Thanksgiving Grease Recycling Day. Working with the Tucson Clean Cities Coalition and several local businesses, they collected cooking oil at ...

  3. 2006 - 02 | Jefferson Lab

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

    2 Feb 2006 Thu, 2006-02-16 13:00 Swapan Chattopadhyay Inducted into AAAS Fellowship Wed, 2006-02-15 13:00 Thomas Jefferson High School for Science &#38; Technology wins the Virginia Regional Science Bowl Fri, 2006-02-03 15:10 Media Advisory: News Media is invited to cover Feb. 11 Virginia Regional High School Science Bowl at JLab Fri, 2006-02-03 13:00 Jefferson Lab hosts 23 teams for Virginia High School Science Bowl on Feb. 11

  4. 2012 - 03 | Jefferson Lab

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

    3 Mar 2012 Fri, 2012-03-30 00:00 Tubes Are Us: High Performance, Multi-use Nanotube Material Commercially Available Soon (NASA Researcher News) Fri, 2012-03-23 00:00 University of Regina researchers complete milestone in major international physics project at JLab (University of Regina) Thu, 2012-03-15 00:00 Longfellow Students Win as Virginia Science Champs (McLean Patch) Thu, 2012-03-15 00:00 Synopsis: Getting Under the Neutron Skin (Physics) Wed, 2012-03-14 00:00 Society of Physics Students

  5. 2007 | Jefferson Lab

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

    7 Dec 2007 Mon, 2007-12-17 00:00 Laser turns 50 (Inside Business) Fri, 2007-12-14 00:00 GOVERNOR INVESTS IN HIGHER EDUCATION (Daily Press) Wed, 2007-12-05 00:00 Transparent Nuclei (focus.aps.org) Tue, 2007-12-04 00:00 PET And Bioluminescent Imaging Aid Evaluation Of Stem Cells' Potential For New Ways To Treat Disease (Society of Nuclear Medicine) Nov 2007 Fri, 2007-11-16 00:00 Scientists Help Teachers With Their Math and Science (EdWeek.org) Tue, 2007-11-13 00:00 Bush signs defense bill with

  6. 2008 - 09 | Jefferson Lab

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

    9 Sep 2008 Fri, 2008-09-26 00:00 FBI documents detail case against scientist (Daily Press) Thu, 2008-09-25 00:00 Physicist pulled in millions in federal grants (Daily Press) Fri, 2008-09-19 00:00 Grant will ensure lab's financial, scientific future (Daily Press) Wed, 2008-09-17 00:00 Jefferson Lab Upgrade OK'd (photonics.com) Tue, 2008-09-16 00:00 Proton spin puzzle is investigated (upi.com)

  7. 2013 - 07 | Jefferson Lab

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

    7 Jul 2013 Tue, 2013-07-30 15:17 Follow Construction Zone Restrictions During Demolition of Bldg. 59 Set to Begin the Week of Aug. 12 Tue, 2013-07-30 15:14 JLab to Test Tornado Warning Siren Friday, Aug. 2 at 10:30 a.m. Thu, 2013-07-25 16:29 SURA statement on completion of the acquisition of CSC's Applied Technology Division by PAE Wed, 2013-07-24 15:44 JLab Message from Hugh Montgomery: Voluntary Separation Program Fri, 2013-07-19 11:01 JLab Update Regarding Sequestration Impacts for FY13 Fri,

  8. 2014 | Jefferson Lab

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

    Dec 2014 Tue, 2014-12-09 09:16 TIAA-CREF INDIVIDUAL COUNSELING - January - May 2015 Mon, 2014-12-08 13:16 Vacation Donation Program Mon, 2014-12-01 13:07 TIAA-CREF 401(k) GSRA Open Enrollment Begins Today Nov 2014 Fri, 2014-11-14 15:33 Maximum Vacation Carryover Balance & Upcoming Holiday Shutdown Reminder Thu, 2014-11-13 14:58 Pressure Systems Awareness Training Offered Fri, 2014-11-07 15:31 Annual Reminder to Review Withholding Exemptions Wed, 2014-11-05 15:25 JLab Hall B Radiological

  9. 2016 - 01 | Jefferson Lab

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

    1 Jan 2016 Fri, 2016-01-29 14:41 JLab Posts OSHA Form 300 for 2015 Fri, 2016-01-29 14:38 Main Sidewalk from CEBAF Center Circle to TED Closes at 4 p.m. on Jan. 29 Thu, 2016-01-28 08:21 Jim LeMaire, a former Finance Director at JLab, passed away on Jan. 23; Funeral is on Jan. 28 Wed, 2016-01-27 15:50 Main Sidewalk from CEBAF Center to TED Closes Morning of Jan. 28 Mon, 2016-01-25 10:43 Message from the Director: Hugh Montgomery Wed, 2016-01-20 15:08 JSA Accepting Applications for Graduate

  10. 2003 | Jefferson Lab

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

    Dec 2003 Mon, 2003-12-01 14:00 OnTarget November and December 2003 Oct 2003 Wed, 2003-10-01 15:00 OnTarget October 2003 Sep 2003 Mon, 2003-09-01 15:00 OnTarget September 2003 Aug 2003 Fri, 2003-08-01 15:00 OnTarget July and August 2003 Jun 2003 Sun, 2003-06-01 15:00 OnTarget June 2003 May 2003 Thu, 2003-05-01 15:00 OnTarget May 2003 Apr 2003 Tue, 2003-04-01 14:00 OnTarget April 2003 Mar 2003 Wed, 2003-03-05 14:00 Quark Cafe opens its doors at Jefferson Lab Wed, 2003-03-05 14:00 Summary of

  11. 2015 - 08 | Jefferson Lab

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

    8 Aug 2015 Mon, 2015-08-31 11:33 Jefferson Lab to Test Tornado Warning Siren at 10:30 a.m. on Friday, Sept. 4 Wed, 2015-08-26 08:49 Celebrate Jefferson Lab Safety Milestone with a Cookie on Aug. 27 Fri, 2015-08-21 16:01 JLab Safety Concern: Do Not Block Overhead Doors Thu, 2015-08-20 13:36 REAL ID Act Update as of Aug. 21, 2015 Wed, 2015-08-19 12:48 Volunteers Sought for Sept. 11 United Way Day of Caring; Sign up by Aug. 28 Wed, 2015-08-12 11:23 Radiation Worker II Class Scheduled for Aug. 20;

  12. PMCDP Training Events Calendar | Department of Energy

    Office of Environmental Management (EM)

    PMCDP Training Events Calendar PMCDP Training Events Calendar Complete listing of all PMCDP Training Events. September 2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 28 29 30 31 1 2 3 « Project Management Simulation (Using FAI Equivalent FPM211) 9:00AM to 5:00PM EDT 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 1

  13. Weatherization and Intergovernmental Programs Office Events | Department of

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

    Energy Weatherization and Intergovernmental Programs Office Events Weatherization and Intergovernmental Programs Office Events The Weatherization and Intergovernmental Programs Office (WIP) hosts trainings and facilitates peer exchange for state, local, tribal, and K-12 school district leaders. Find upcoming events from WIP and other stakeholders in the calendar below and visit our Webinar Archive to access past trainings. August 2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 31 1 2 3

  14. Fuel Cells Calendar | Department of Energy

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

    Fuel Cells Calendar Fuel Cells Calendar Events for the Fuel Cell Technologies Office are listed below. August 2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 2 3 Webinar: International Hydrogen Infrastructure Update 12:00PM to 1:00PM EDT

  15. 2005 | Jefferson Lab

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

    Oct 2005 Sat, 2005-10-01 15:00 OnTarget Fall 2005 Aug 2005 Mon, 2005-08-01 15:00 OnTarget July and August 2005 Jun 2005 Wed, 2005-06-01 15:00 OnTarget May and June 2005 Apr 2005 Fri, 2005-04-01 14:00 OnTarget April 2005 Mar 2005 Tue, 2005-03-01 14:00 OnTarget February and March 2005

  16. 2007 - 12 | Jefferson Lab

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

    2 Dec 2007 Mon, 2007-12-17 00:00 Laser turns 50 (Inside Business) Fri, 2007-12-14 00:00 GOVERNOR INVESTS IN HIGHER EDUCATION (Daily Press) Wed, 2007-12-05 00:00 Transparent Nuclei (focus.aps.org) Tue, 2007-12-04 00:00 PET And Bioluminescent Imaging Aid Evaluation Of Stem Cells' Potential For New Ways To Treat Disease (Society of Nuclear Medicine

  17. 2008 - 03 | Jefferson Lab

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

    3 Mar 2008 Sat, 2008-03-29 00:00 Dr. Chuck Ross gives final lecture of JLab Spring Science Series (Daily Press) Fri, 2008-03-28 00:00 Jefferson Lab Signs Contract Wth SensL For Silicon Photomultiplier Technology (Photonics Online) Wed, 2008-03-05 00:00 A video interview with Fred Dylla, AIP CEO (SPIE Newsroom) Mon, 2008-03-03 00:00 First Person -- George Neil Named Head of FEL Program (Inside Business

  18. Poster Thur Eve 19: Performance assessment of a 160-leaf beam collimation system

    SciTech Connect (OSTI)

    Ali, E. S. M.; La Russa, D. J.; Vandervoort, E.

    2014-08-15

    In this study, the performance of the new beam collimation system with 160 leaves, each with a 5 mm leaf width projected at isocenter, is evaluated in terms of positional accuracy and plan/delivery quality. Positional accuracy was evaluated using a set of static and dynamic MLC/jaw delivery patterns at different gantry angles, dose rates, and MLC/jaw speeds. The impact on IMRT plan quality was assessed by comparing against a previous generation collimation system using the same optimization parameters, while delivery quality was quantified using a combination of patient-specific QA measurements with ion chambers, film, and a bi-planar diode array. Positional accuracy for four separate units was comparable. The field size accuracy, junction width, and total displacement over 16 cm leaf travel are 0.3 0.2 mm, 0.4 0.3 mm, and 0.5 0.2 mm, respectively. The typical leaf minor offset is 0.05 0.04 mm, and MLC hysteresis effects are 0.2 0.1 mm over 16 cm travel. The dynamic output is linear with MU and MLC/jaw speed, and is within 0.7 0.3 % of the planning system value. Plan quality is significantly improved both in terms of target coverage and OAR sparing due, in part, to the larger allowable MLC and jaw speeds. ?-index pass rates for the patient-specific QA measurements exceeded 97% using criteria of 2%/2 mm. In conclusion, the performance of the Agility system is consistent among four separate installations, and is superior to its previous generations of collimation systems.

  19. Poster — Thur Eve — 50: Common Regulatory Non-Compliances and How to Avoid Them

    SciTech Connect (OSTI)

    Heimann, M.

    2014-08-15

    The Accelerators and Class II Facilities Division (ACFD) of the Canadian Nuclear Safety Commission (CNSC), is responsible for the oversight of radiotherapy facilities containing Class II prescribed equipment in Canada. Over the past several years, ACFD has been performing compliance inspections of Class II nuclear facilities across the country (medical and otherwise), and in that time, has issued several hundred corrective actions to licensees due to non-compliance with regulatory requirements. Recently, a study was done to determine the most common regulatory non-compliances. The purpose of this poster presentation is to disseminate information to the licensee community about the nature of these non-compliances, and how they can be avoided by licensees in the future.

  20. Poster Thur Eve 25: Sensitivity to inhomogeneities for an in-vivo EPID dosimetry method

    SciTech Connect (OSTI)

    Peca, Stefano; Brown, Derek

    2014-08-15

    Introduction: The electronic portal imaging device (EPID) has the potential to be used for in vivo dosimetry during radiotherapy as an additional dose delivery check. We recently proposed a simple method of using the EPID for 2D-IVD based on correlation ratios. In this work we have investigated the sensitivity of our EPID-IVD to inhomogeneities. Methods: We used slab phantoms that simulate water, bone, and lung, arranged in various geometries. To simulate body contours non-orthogonal to the field, we used a water wedge. CT data of these phantoms was imported into MATLAB, in conjunction with EPID images acquired during irradiation, to calculate dose inside the phantom in isocenter plane. Each phantom was irradiated using a linear accelerator while images were acquired with the EPID (cine mode). Comparisons between EPID-calculated and TPS dose maps were: pixel-by-pixel dose difference, and 3%,3mm gamma evaluation. Results: In the homogeneous case, CAX dose difference was <1%, and 3%,3mm gamma analysis yielded 99% of points with gamma<1. For the inhomogeneous phantoms, agreement decreased with increasing inhomogeneity reaching up to 10% CAX dose difference with 10cm of lung. Results from the water wedge phantom suggest that the EPID-calculated dose can account for surface irregularities of approximately 3cm. Conclusions: The EPID-based IVD investigated has limitations in the presence of large inhomogeneities. Nonetheless, CAX doses never differed by >15% from the TPS. This suggests that this EPID-IVD is capable of detecting gross dose delivery errors even in the presence of inhomogeneities, supporting its utility as an additional patient safety device.

  1. Poster Thur Eve 58: Dosimetric validation of electronic compensation for radiotherapy treatment planning

    SciTech Connect (OSTI)

    Grfe, James; Khan, Rao; Meyer, Tyler

    2014-08-15

    In this study we investigate the deliverability of dosimetric plans generated by the irregular surface compensator (ISCOMP) algorithm for 6 MV photon beams in Eclipse (Varian Medical System, CA). In contrast to physical tissue compensation, the electronic ISCOMP uses MLCs to dynamically modulate the fluence of a photon beam in order to deliver a uniform dose at a user defined plane in tissue. This method can be used to shield critical organs that are located within the treatment portal or improve dose uniformity by tissue compensation in inhomogeneous regions. Three site specific plans and a set of test fields were evaluated using the ?-metric of 3%/ 3 mm on Varian EPID, MapCHECK, and Gafchromic EBT3 film with a clinical tolerance of >95% passing rates. Point dose measurements with an NRCC calibrated ionization chamber were also performed to verify the absolute dose delivered. In all cases the MapCHECK measured plans met the gamma criteria. The mean passing rate for the six EBT3 film field measurements was 96.2%, with only two fields at 93.4 and 94.0% passing rates. The EPID plans passed for fields encompassing the central ?10 10 cm{sup 2} region of the detector; however for larger fields and greater off-axis distances discrepancies were observed and attributed to the profile corrections and modeling of backscatter in the portal dose calculation. The magnitude of the average percentage difference for 21 ion chamber point dose measurements and 17 different fields was 1.4 0.9%, and the maximum percentage difference was ?3.3%. These measurements qualify the algorithm for routine clinical use subject to the same pre-treatment patient specific QA as IMRT.

  2. Poster — Thur Eve — 37: Respiratory gating with an Elekta flattening filter free photon beam

    SciTech Connect (OSTI)

    Péloquin, S; Furstoss, C; Munger, P; Wierzbicki, W; Carrier, J-F

    2014-08-15

    In cases where surgery is not possible for lung cancer treatment, stereotactic body radiation therapy (SBRT) may be an option. One problem when treating this type of cancer is the motion of the lungs caused by the patient's respiration. It is possible to reduce the impact of this movement with the use of respiratory gating. By combining respiratory gating with a flattening filter free (FFF) photon beam linac, the increased treatment time caused by a reduced beam-on time of respiratory gating methods can be compensated by the inherent increased dose rate of FFF beams. This project's aim is to create hardware and software interfaces allowing free respiration gating on an Elekta Synergy-S linac specially modified to deliver 6 MV FFF photon beams. First, a printed circuit board was created for reading the signal from a Bellows Belt from Philips (a respiration monitor belt) and transmitting an On/Off signal to the accelerator. A software was also developed to visualize patient respiration. Secondly, a FFF model was created with the Pinnacle treatment planning system from Philips. Gamma (Γ) analysis (2%, 2 mm) was used to evaluate model. For fields going from 5.6 × 5.6 to 12 × 12 cm{sup 2}, central axis depth dose model fitting shows an average gamma value of 0.2 and 100% of gamma values remain under the Γ = 1 limit. For smaller fields (0.8 × 0.8 and 1.6 × 1.6 cm{sup 2}), Pinnacle has more trouble trying to fit the measurements, overestimating dose in penumbra and buildup regions.

  3. Sci—Thur PM: Planning and Delivery — 06: Real-Time Interactive Treatment Planning

    SciTech Connect (OSTI)

    Matthews, Q; Mestrovic, A; Otto, K

    2014-08-15

    Purpose: To describe and evaluate a novel system for generalized Real-Time Interactive Planning (RTIP) applied to head and neck (H and N) VMAT. Methods: The clinician interactively manipulates dose distributions using DVHs, isodoses, or rate of dose fall-off, which may be subjected to user-defined constraints. Dose is calculated using a fast Achievable Dose Estimate (ADE) algorithm, which simulates the limits of what can be achieved during treatment. After each manipulation contributing fluence elements are modified and the dose distribution updates in effectively real-time. For H and N VMAT planning, structure sets for 11 patients were imported into RTIP. Each dose distribution was interactively modified to minimize OAR dose while constraining target DVHs. The resulting RTIP DVHs were transferred to the Eclipse™ VMAT optimizer, and conventional VMAT optimization was performed. Results: Dose calculation and update times for the ADE algorithm ranged from 2.4 to 22.6 milliseconds, thus facilitating effectively real-time manipulation of dose distributions. For each of the 11 H and N VMAT cases, the RTIP process took ∼2–10 minutes. All RTIP plans exhibited acceptable PTV coverage, mean dose, and max dose. 10 of 11 RTIP plans achieved substantially improved sparing of one or more OARs without compromising dose to targets or other OARs. Importantly, 10 of the 11 RTIP plans required only one or two post-RTIP optimizations. Conclusions: RTIP is a novel system for manipulating and updating achievable dose distributions in real-time. H and N VMAT plans generated using RTIP demonstrate improved OAR sparing and planning efficiency. Disclosures: One author has a commercial interest in the presented materials.

  4. Poster — Thur Eve — 54: Radiotherapy and Non-Radiotherapy Safety Practices Beyond Licensing Expectations

    SciTech Connect (OSTI)

    Kosierb, Rick

    2014-08-15

    The Canadian Nuclear Safety Commission (CNSC) regulates the use of nuclear energy and materials to protect the health, safety and security of Canadians and the environment, and to implement Canada's international obligations on the peaceful use of nuclear energy. In order to perform this regulatory activity, the CNSC issue licences and has its staff perform inspections to verify conformity to the aspects of those licences. Within the CNSC, the Accelerators and Class II Facilities Division (ACFD) is responsible for the regulatory oversight of Class II Prescribed Equipment used in medical, academic, and industrial sectors in Canada. In performing inspections, ACFD has encountered licensees with practices that are either below, meet or exceed regulatory expectations in specific areas. Unfortunately, none of these practices are ever communicated to the broader Class II community to help other licensees avoid the same problem or achieve high standards. In this poster, ACFD will highlight safety practices that go beyond expectations. These practices are taken from observations during site inspections between 2007 and 2013 and will be presented in six areas: Procedures, Participation, Awareness, Equipment, Servicing and Software. Each area briefly discusses a number of practices that the CNSC feels went beyond the expectations dictated by the licence. Where possible, names are added of the contact people at the centres who can be reached for full details of their implementations. It is hoped that this communication will assist other licensees to achieve these same high levels of compliance and possibly go beyond.

  5. SciThur AM: YIS - 04: Gold Nanoparticle Enhanced Arc Radiotherapy: A Monte Carlo Feasibility Study

    SciTech Connect (OSTI)

    Koger, B; Kirkby, C

    2014-08-15

    Introduction: The use of gold nanoparticles (GNPs) in radiotherapy has shown promise for therapeutic enhancement. In this study, we explore the feasibility of enhancing radiotherapy with GNPs in an arc-therapy context. We use Monte Carlo simulations to quantify the macroscopic dose-enhancement ratio (DER) and tumour to normal tissue ratio (TNTR) as functions of photon energy over various tumour and body geometries. Methods: GNP-enhanced arc radiotherapy (GEART) was simulated using the PENELOPE Monte Carlo code and penEasy main program. We simulated 360 arc-therapy with monoenergetic photon energies 50 1000 keV and several clinical spectra used to treat a spherical tumour containing uniformly distributed GNPs in a cylindrical tissue phantom. Various geometries were used to simulate different tumour sizes and depths. Voxel dose was used to calculate DERs and TNTRs. Inhomogeneity effects were examined through skull dose in brain tumour treatment simulations. Results: Below 100 keV, DERs greater than 2.0 were observed. Compared to 6 MV, tumour dose at low energies was more conformai, with lower normal tissue dose and higher TNTRs. Both the DER and TNTR increased with increasing cylinder radius and decreasing tumour radius. The inclusion of bone showed excellent tumour conformality at low energies, though with an increase in skull dose (40% of tumour dose with 100 keV compared to 25% with 6 MV). Conclusions: Even in the presence of inhomogeneities, our results show promise for the treatment of deep-seated tumours with low-energy GEART, with greater tumour dose conformality and lower normal tissue dose than 6 MV.

  6. Poster Thur Eve 16: 4DCT simulation with synchronized contrast injection of liver SBRT patients

    SciTech Connect (OSTI)

    Karotki, A.; Korol, R.; Milot, L.; Chu, W.; Chung, H. T.; Erler, D.

    2014-08-15

    Stereotactic body radiation therapy (SBRT) has recently emerged as a valid option for treating liver metastases. SBRT delivers highly conformai dose over a small number of fractions. As such it is particularly sensitive to the accuracy of target volume delineation by the radiation oncologist. However, contouring liver metastases remains challenging for the following reasons. First, the liver usually undergoes significant motion due to respiration. Second, liver metastases are often nearly indistinguishable from the surrounding tissue when using computed tomography (CT) for imaging making it difficult to identify and delineate them. Both problems can be overcome by using four dimensional CT (4DCT) synchronized with intravenous contrast injection. We describe a novel CT simulation process which involves two 4DCT scans. The first scan captures the tumor and immediately surrounding tissue which in turn reduces the 4DCT scan time so that it can be optimally timed with intravenous contrast injection. The second 4DCT scan covers a larger volume and is used as the primary CT dataset for dose calculation, as well as patient setup verification on the treatment unit. The combination of two 4DCT scans, short and long, allows visualization of the liver metastases over all phases of breathing cycle while simultaneously acquiring long enough 4DCT dataset suitable for planning and patient setup verification.

  7. Poster Thur Eve 57: Evaluation of laryngeal mucosal dose with conventional linac and TomoTherapy

    SciTech Connect (OSTI)

    Nusrat, H; Lekx, K; Eapen, L

    2014-08-15

    The purpose of this study was to examine whether or not underdosing occurs in the mucosal layer during treatment of glottis cancer. A larynx phantom was produced and regions at risk of recurrence due to suspected underdosing were identified and wells drilled into the phantom for flush placement of TLDs. Seven interest points were chosen. CT simulation was completed prior to the wells being drilled, and again afterwards with the TLD locations indicated using BBs. Treatment plans created for this investigation included: 3DCRT using Elekta-XiO (n=9) and VMAT created using Elekta-Monaco (n=9), both delivered on an Elekta linac; standard TomoTherapy plan (n=11) and a directionally blocked TomoTherapy plan to approximate a 3D-conformal approach (n=5). Imaging dose during TomoTherapy deliveries was accounted for. The average TLD result at each interest point was compared to the planned value using a paired t-test. There was no significant difference between the planned and measured 3DCRT dose (268.9 vs. 267.0 cGy, respectively; p>0.05). Similarly, the planned and measured TomoTherapy treatment did not show any significant differences (271.7 vs 269.7 cGy; p>0.05). In the blocked TomoTherapy plan, significant overdosing was seen (274.5 vs 294.9 cGy; p<0.05) and underdosing was not seen in the VMAT treatment (303.5 vs 321.8 cGy; p>0.05). Further investigation is ongoing to ensure appropriate normalization of results and to investigate the overdosing noted with the blocked TomoTherapy plan. Results from this study suggest that significant underdosing does not occur in the conventional treatment of early glottic cancer using 6MV photons.

  8. Sci—Thur PM: Imaging — 06: Canada's National Computed Tomography (CT) Survey

    SciTech Connect (OSTI)

    Wardlaw, GM; Martel, N; Blackler, W; Asselin, J-F

    2014-08-15

    The value of computed tomography (CT) in medical imaging is reflected in its' increased use and availability since the early 1990's; however, given CT's relatively larger exposures (vs. planar x-ray) greater care must be taken to ensure that CT procedures are optimised in terms of providing the smallest dose possible while maintaining sufficient diagnostic image quality. The development of CT Diagnostic Reference Levels (DRLs) supports this process. DRLs have been suggested/supported by international/national bodies since the early 1990's and widely adopted elsewhere, but not on a national basis in Canada. Essentially, CT DRLs provide guidance on what is considered good practice for common CT exams, but require a representative sample of CT examination data to make any recommendations. Canada's National CT Survey project, in collaboration with provincial/territorial authorities, has collected a large national sample of CT practice data for 7 common examinations (with associated clinical indications) of both adult and pediatric patients. Following completion of data entry into a common database, a survey summary report and recommendations will be made on CT DRLs from this data. It is hoped that these can then be used by local regions to promote CT practice optimisation and support any dose reduction initiatives.

  9. Poster — Thur Eve — 74: Distributed, asynchronous, reactive dosimetric and outcomes analysis using DICOMautomaton

    SciTech Connect (OSTI)

    Clark, Haley; Wu, Jonn; Moiseenko, Vitali; Thomas, Steven

    2014-08-15

    Many have speculated about the future of computational technology in clinical radiation oncology. It has been advocated that the next generation of computational infrastructure will improve on the current generation by incorporating richer aspects of automation, more heavily and seamlessly featuring distributed and parallel computation, and providing more flexibility toward aggregate data analysis. In this report we describe how a recently created — but currently existing — analysis framework (DICOMautomaton) incorporates these aspects. DICOMautomaton supports a variety of use cases but is especially suited for dosimetric outcomes correlation analysis, investigation and comparison of radiotherapy treatment efficacy, and dose-volume computation. We describe: how it overcomes computational bottlenecks by distributing workload across a network of machines; how modern, asynchronous computational techniques are used to reduce blocking and avoid unnecessary computation; and how issues of out-of-date data are addressed using reactive programming techniques and data dependency chains. We describe internal architecture of the software and give a detailed demonstration of how DICOMautomaton could be used to search for correlations between dosimetric and outcomes data.

  10. Poster Thur Eve 72: Clinical Subtleties of Flattening-Filter-Free Beams

    SciTech Connect (OSTI)

    Corns, Robert; Thomas, Steven; Huang, Vicky

    2014-08-15

    Flattening-filter-free (fff) beams offer superior dose rates, reducing treatment times for important techniques that utilize small field sizes, such as stereotactic ablative radiotherapy (SABR). The impact of ion collection efficiency (P{sub ion}) on the percent depth dose (PDD) has been discussed at length in the literature. Relative corrections of the order of l%2% are possible. In the process of commissioning 6fff and 10fff beams, we identified a number of other important details that influence commissioning. We looked at the absolute dose difference between corrected and uncorrected PDD. We discovered a curve with a broad maximum between 10 and 20 cm. We wondered about the consequences of this PDD correction on the absolute dose calibration of the linac because the TG-51 protocol does not correct the PDD curve. The quality factor k{sub Q} depends on the PDD, so in principle, a correction to the PDD will alter the absolute calibration of the linac. Finally, there are other clinical tables, such as TMR, which are derived from PDD. Attention to details on how this computation is performed is important because different corrections are possible depending the method of calculation.

  11. 2012 | Jefferson Lab

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

    Dec 2012 Tue, 12/18/2012 - 12:00am 121212 Nov 2012 Mon, 11/19/2012 - 12:00am Looking down the road ahead Oct 2012 Fri, 10/19/2012 - 12:00am On the Margin Sep 2012 Thu, 09/27/2012 - 12:00am Year's End 2012 Aug 2012 Tue, 08/14/2012 - 09:53pm The NSAC Subcommittee Jul 2012 Sat, 07/07/2012 - 12:00am The Higgs Jun 2012 Tue, 06/12/2012 - 12:00am A Month to Remember May 2012 Wed, 05/09/2012 - 12:00am End of an Era Apr 2012 Wed, 04/04/2012 - 12:00am Physicists and Technologists in Washington

  12. LiveChat Wed, 6/29, 2pm: Our Energy Independence | Department...

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

    How can I participate? Submit a question via E-mail, Facebook or Twitter Watch live on ... Majumdar in advance of the event through email, Twitter or Facebook, by Sending an email ...

  13. Hopper OS upgrade and new SW set to default next Wed, Feb 27

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

    The availability of the above software versions were announced on Dec 19 and Jan 18. Notice Cray has changed some of the module names from "xt-xxx" to "cray-xxx", for example: ...

  14. WE-D-17A-04: Magnetically Focused Proton Irradiation of Small Volume Targets

    SciTech Connect (OSTI)

    McAuley, G; Slater, J; Wroe, A

    2014-06-15

    Purpose: To explore the advantages of magnetic focusing for small volume proton irradiations and the potential clinical benefits for radiosurgery targets. The primary goal is to create narrow elongated proton beams of elliptical cross section with superior dose delivery characteristics compared to current delivery modalities (eg, collimated beams). In addition, more general beam shapes are also under investigation. Methods: Two prototype magnets consisting of 24 segments of samarium-cobalt (Sm2Co17) permanent magnetic material adhered into hollow cylinders were manufactured for testing. A single focusing magnet was placed on a positioning track on our Gantry 1 treatment table and 15 mm diameter proton beams with energies and modulation relevant to clinical radiosurgery applications (127 to 186 MeV, and 0 to 30 mm modulation) were delivered to a terminal water tank. Beam dose distributions were measured using a PTW diode detector and Gafchromic EBT2 film. Longitudinal and transverse dose profiles were analyzed and compared to data from Monte Carlo simulations analogous to the experimental setup. Results: The narrow elongated focused beam spots showed high elliptical symmetry indicating high magnet quality. In addition, when compared to unfocused beams, peak-to-entrance depth dose ratios were 11 to 14% larger (depending on presence or extent of modulation), and minor axis penumbras were 11 to 20% smaller (again depending on modulation) for focused beams. These results suggest that the use of rare earth magnet assemblies is practical and could improve dose-sparing of normal tissue and organs at risk while delivering enhanced dose to small proton radiosurgery targets. Conclusion: Quadrapole rare earth magnetic assemblies are a promising and inexpensive method to counteract particle out scatter that tends to degrade the peak to entrance performance of small field proton beams. Knowledge gained from current experiments will inform the design of a prototype treatment nozzle that incorporates similar focusing magnets. This project was sponsored in part by funding from the Department of Defense (DOD# W81XWH-BAA-10-1)

  15. WE-D-18C-01: Art of Imaging: Diagnostic Ultrasound Image Artifacts

    SciTech Connect (OSTI)

    Zagzebski, J; Lu, Z

    2014-06-15

    Assumptions followed during construction of B-mode and color flow images are that the pulse-echo transit time can be converted to reflector depth through uniform tissue models, echoes originate only from locations along the transmit-receive axes of pulse propagation, and first order correction schemes adequately account for acoustic wave attenuation and absorption. The latter allows the display brightness to encode tissue echogenicity. This course will challenge participants to identify imaging artifacts whose origins stem from the more complex and realistic propagating and scattering conditions common in clinical ultrasound. Speckle, a very common artifact but a clinically employed feature, originates from simultaneous echoes from diffuse scatterers and is a result of coherent detection of signals. One of the most bothersome artifacts are those due to reverberations especially that originating from superficial tissue interfaces. Methods to overcome these will be discussed. This presentation also will describe and illustrate speed of sound, refraction, enhancement, shadowing, mirroring, beam width, beam-forming, and slice thickness artifacts. All are useful examples of limitations introduced by acoustic waves propagating through complex tissue paths. New formats for physician board certification exams are demanding the inclusion of image-based examples of ultrasound physics. Instructors' knowledge of, and access to examples of ultrasound artifacts are important in this effort. The presentation will incorporate an audience response system to challenge participants in correct identification of some of these artifacts. Learning Objectives: Review basic mechanisms for producing ultrasound images. Identify the etiology of speckle, reverberation noise, beam width and slice thickness artifacts, and artifacts associated with pulse propagation. Discuss methods that reduce the impact of artifacts OR employ artifacts effectively to facilitate clinical diagnosis.

  16. LiveChat Wed, 11/16, 2 pm ET: Industrial Energy Efficiency |...

    Energy Savers [EERE]

    Kathleen Hogan, Deputy Assistant Secretary for Energy Efficiency, for a live discussion about how businesses are lowering their energy consumption, and how the resulting energy ...

  17. HPSS Outage Tue Mar 19 - Fri Mar 22

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

    of the HPSS client software tools hsi and htar. Note that if you use a "regular" ftp client, your current client will work with the new version of the HPSS server software....

  18. Events | U.S. DOE Office of Science (SC)

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

    Events Calendar Events Calendar September 2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 28 29 30 31 1 2 3 IEA Webinar: Cascading of woody biomass definitions, policies, and effects on international trade 10:00AM to 11:00AM EDT 4 5 6 7 8 9 10 Roadmap for Integrating Health and Home Performance (201) 1:00PM to 2:30PM EDT Working in Offshore Wind: Webinar and Panel Discussion 9:30AM to 11:30AM EDT 11 12 13 14 15 16 17 Fall Tech Trends: Promising New Products from DOE's High Impact

  19. Diversity and Inclusion Events Calendar | Department of Energy

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

    Diversity and Inclusion Events Calendar Diversity and Inclusion Events Calendar Training, networking, and career-building conferences like the ones below are valuable ways to engage in diversity issues. Learn about upcoming events on the calendar below, and contact us at diversity@hq.doe.gov to let us know about other upcoming events. To learn more about the Department's diversity initiatives, visit this page. August 2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 31 1 2 3 4 5 6 7 8 9 10 11

  20. Latest Staff Memos | Jefferson Lab

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

    Latest Staff Memos sort descending Mon, 2016-08-08 15:20 Emergency Response Exercise Mon, 2016-08-08 15:35 JLab Seeking Volunteers for United Way Day of Caring Wed, 2016-08-10 15:06 JLab Travelers and Travel Coordinators: Effective Immediately - Critical new requirements for all travel to or passing through France Mon, 2016-08-15 10:57 Aug. 17 at 5:30 p.m.: JLab Will Test its Public Address System Fri, 2016-08-26 15:49 Jefferson Lab to Test Tornado Warning Siren at 10:30 a.m. on Friday, Sept. 2

  1. 2002 | Jefferson Lab

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

    Oct 2002 Wed, 2002-10-09 14:00 Jefferson Lab adds three popular presentations to Fall Science Series line-up Sep 2002 Fri, 2002-09-06 14:00 Jefferson Lab announces Fall 2002 Science Series line-up Jul 2002 Mon, 2002-07-15 14:00 New Center for Advanced Medical Instrumentation Created Apr 2002 Mon, 2002-04-22 14:00 Six Local Teens Win Jefferson Lab Summer Externships Mon, 2002-04-22 14:00 Jefferson Lab Tech Associate Invents Lockout Device for Equipment with Removable Power Cords Mon,

  2. 2008 - 02 | Jefferson Lab

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

    2 Feb 2008 Tue, 2008-02-26 13:00 Media Advisory: March 1 Middle School Science Bowl Tournament Mon, 2008-02-25 14:15 Jefferson Lab Hosts 20 Teams for Middle School Science Bowl on March 1 Wed, 2008-02-20 13:00 Thomas Jefferson High School Wins Virginia Science Bowl for 7th Year Running Fri, 2008-02-15 13:00 George Neil Named to Lead JLab's Free-Electron Laser Program Tue, 2008-02-12 13:00 Civil War Unplugged Tue, 2008-02-05 13:00 Inaugural JSA Postdoctoral Research Fellow Announced

  3. 2008 - 09 | Jefferson Lab

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

    9 Sep 2008 Fri, 2008-09-19 15:00 ODU establishes a Center for Accelerator Science Mon, 2008-09-15 15:00 DOE's Jefferson Lab Receives Approval To Start Construction of $310 Million Upgrade Wed, 2008-09-10 15:00 Moving Quarks Help Solve Proton Spin Puzzle Tue, 2008-09-09 15:00 Have Fun With Astronomy at JLab on Oct. 14 Mon, 2008-09-08 15:00 Jefferson Lab Invites Classes, Groups to 2008-2009 Physics Fests

  4. 2012 - 02 | Jefferson Lab

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

    2 Feb 2012 Fri, 2012-02-24 00:00 $16M funding shortfall for Jeff Lab has ripple effect ( Inside Business) Wed, 2012-02-22 00:00 Physicists raid Tevatron for parts (Nature) Tue, 2012-02-14 00:00 Italian Physicist Named Deputy Associate Director at JLab (Daily Press) Tue, 2012-02-14 00:00 Device build at ODU to crack nature's code takes ride to JLab (Device build at ODU to crack nature's code takes ride to JLab Mon, 2012-02-13 00:00 At DOE, body blows to Fusion, Nuclear Physics, and Particle

  5. DOE Exhibit D 2-16-06.doc

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

    16 / 06 2 Sun Mon Tue Wed Thu Fri Sat 1 Units # 1 & 4 on, with trona 2 3 4 Unit # 4 off for boiler leak 5 Units # 1 on, with trona Another base load unit will be added with trona as soon as repairs are made and model results completed 6 . 7 8 9 Unit #4 with #1 on with trona except when not dispatched by PJM 10 11 12 Units #1 & #4 on with trona except when not dispatched by PJM 13 14 15 16 17 18 19 Units # 1 & base unit on, with trona 20 21 22 23 24 25 26 Units # 1, & base unit

  6. DOE Response Exhibit D Calendar 12-30-05 .doc

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

    This version of unit sequence is based on information available as of 12/28/05. This accomplishes elimination of extended unit lay-up and completion of 3 trona systems 2. Actual unit sequence may change based on when approval to proceed is provided and trona system completion dates. Sun Mon Tue Wed Thu Fri Sat 1 2 Unit #2 on with trona (1 st time operation since extended layup) 3 4 Unit # 2 5 6 7 8 Unit #2 9 Unit # 1 on 16 hrs w/no trona. Unit # 2 off while moving hoses from Unit #2 to Unit # 4.

  7. DOE Selects 12 Solar America Cities to Receive up to $2.4 Million |

    Office of Environmental Management (EM)

    This version of unit sequence is based on information available as of 12/28/05. This accomplishes elimination of extended unit lay-up and completion of 3 trona systems 2. Actual unit sequence may change based on when approval to proceed is provided and trona system completion dates. Sun Mon Tue Wed Thu Fri Sat 1 2 Unit #2 on with trona (1 st time operation since extended layup) 3 4 Unit # 2 5 6 7 8 Unit #2 9 Unit # 1 on 16 hrs w/no trona. Unit # 2 off while moving hoses from Unit #2 to Unit # 4.

  8. Office of Small and Disadvantaged Business Utilization Events | Department

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

    of Energy About Us » Office of Small and Disadvantaged Business Utilization Events Office of Small and Disadvantaged Business Utilization Events August 2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 31 1 2 3 4 5 6 FEMP First Thursday Update: FY2015 Government Performance Toward Energy and Sustainability Goals 1:30PM to 2:30PM EDT 7 8 9 10 11 12 13 August 2015 Showcase Small Business Seminar and Matchmaker 9:00AM to 3:00PM EDT 14 15 16 17 18 19 20 UCOR's 4th Annual Small Business

  9. 1997 - 03 | Jefferson Lab

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

    3 Mar 1997 Fri, 1997-03-28 00:00 Jefferson Lab Earns Hammer (Daily Press) Wed, 1997-03-26 00:00 Defects Fade Away Surgical Uses Continue to Grow (Daily Press) Mon, 1997-03-17 00:00 Laboratory Profile: Jefferson Lab Introduction (Nuclear Physics News) Mon, 1997-03-17 00:00 Laboratory Profile: Jefferson Lab Scientific Motivation and Research Program (Nuclear Physics News) Mon, 1997-03-17 00:00 Laboratory Profile: Jefferson Lab The Accelerator (Nuclear Physics News) Mon, 1997-03-17 00:00 Laboratory

  10. 1998 - 08 | Jefferson Lab

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

    8 Aug 1998 Sat, 1998-08-29 00:00 Breast Cancer Detector to Begin Clinical Trials (Virginian-Pilot) Thu, 1998-08-20 00:00 Reports Spotlight Free-Electron Lasers (Times-Dispatch) Mon, 1998-08-17 00:00 ARC Chosen as Home for New Research Center (Technology Observer) Fri, 1998-08-14 00:00 Grants Help Area Efforts (Daily Press) Wed, 1998-08-12 00:00 BP Pays $48 Billion for a Center for Innovation (Virginian-Pilot) Tue, 1998-08-11 00:00 Barry DuVal and Virginia's Center for Innovative Technology

  11. 2001 - 10 | Jefferson Lab

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

    0 Oct 2001 Tue, 2001-10-30 00:00 NN Germ-Killing Research May Soon Target Anthrax: (Daily Press) Fri, 2001-10-26 00:00 HU Wins Awards for Physics Research (Daily Press) Wed, 2001-10-24 00:00 Professor Wins 'Genius Award' (Times-Dispatch) Sun, 2001-10-14 00:00 Scientists Have Quirky Fun Naming the Various Quarks (Burrelle's) Thu, 2001-10-04 00:00 Beaming with Power (Daily Press) Thu, 2001-10-04 00:00 Small is not the same for one and all

  12. 2004 | Jefferson Lab

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

    Dec 2004 Wed, 2004-12-01 14:00 OnTarget November and December 2004 Oct 2004 Fri, 2004-10-01 15:00 OnTarget September and October 2004 Aug 2004 Sun, 2004-08-01 15:00 OnTarget August 2004 Jul 2004 Thu, 2004-07-01 15:00 OnTarget July 2004 Apr 2004 Thu, 2004-04-01 14:00 OnTarget Spring 2004 Mar 2004 Mon, 2004-03-01 14:00 OnTarget February and March 2004

  13. 2006 - 08 | Jefferson Lab

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

    8 Aug 2006 Wed, 2006-08-30 00:00 Jeff Lab cuts $33,000 off its electricity bill (The Virginian-Pilot) Mon, 2006-08-28 00:00 JLab process cools scientific machines, slashing electricity costs for units (Inside Energy) Fri, 2006-08-25 00:00 High-tech efforts must overcome low availability of investors (The Virginian-Pilot) Tue, 2006-08-15 00:00 Investors pitch in to push sales of breast cancer detector (The Virginian-Pilot

  14. 2011 | Jefferson Lab

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

    Dec 2011 Thu, 2011-12-01 14:00 On Target December 2011 Oct 2011 Sat, 2011-10-01 15:00 On Target October 2011 Sep 2011 Thu, 2011-09-01 15:00 On Target September 2011 Jul 2011 Fri, 2011-07-01 15:00 On Target July 2011 Jun 2011 Wed, 2011-06-01 15:00 On Target June 2011 May 2011 Sun, 2011-05-01 15:00 On Target May 2011 Mar 2011 Tue, 2011-03-01 14:00 On Target March 2011

  15. 2012 | Jefferson Lab

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

    Dec 2012 Sat, 2012-12-01 14:00 On Target December 2012 Nov 2012 Thu, 2012-11-01 15:00 On Target November 2012 Oct 2012 Mon, 2012-10-01 15:00 On Target October 2012 Sep 2012 Sat, 2012-09-01 15:00 On Target September 2012 Aug 2012 Wed, 2012-08-01 12:54 On Target August 2012 Jun 2012 Fri, 2012-06-01 14:03 On Target June 2012 May 2012 Tue, 2012-05-01 15:00 On Target May 2012 Mar 2012 Thu, 2012-03-01 15:43 On Target March 2012

  16. 2013 - 09 | Jefferson Lab

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

    9 Sep 2013 Thu, 2013-09-26 14:13 Restructuring Questions and Answers Mon, 2013-09-23 16:05 United Way Appeal at JLab Kicks off with Oct 2 Picnic Raffle Ticket Sales Tue, 2013-09-17 08:50 JLab-wide Phone Outage: Saturday, Sept. 21 Tue, 2013-09-17 08:49 JLab to Hold Lab-wide Cleanup Sept. 30 - Oct. 4 Wed, 2013-09-11 12:14 Lab Community Invited to Oct. 16 Dedication of Technology & Engineering Development Facility Fri, 2013-09-06 14:00 TIAA-CREF INDIVIDUAL COUNSELING - October & November

  17. 2014 - 01 | Jefferson Lab

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

    1 Jan 2014 Fri, 2014-01-31 16:47 JLab Posts OSHA Form 300 for 2013 Thu, 2014-01-30 09:50 DOE Secretary Moniz to Visit JLab on Friday, Jan. 31 Thu, 2014-01-23 11:21 Current JLab Copier Changeout Schedule Wed, 2014-01-15 09:48 JLab Director Statement on Jan. 15 Restructuring Action Mon, 2014-01-13 10:50 Jefferson Lab Mourns Death of Users Group Member B. Nefkens Thu, 2014-01-02 12:59 Text Alert Over Cisco Phones Will be Used Again with Site-Wide Alert to Remind Lab Community of Monthly Tornado

  18. 2014 - 03 | Jefferson Lab

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

    3 Mar 2014 Mon, 2014-03-24 12:08 Annual Property Training & Validation Due between March 24 & April 18 Tue, 2014-03-18 12:06 JLab Safety: Report Work Injuries When They Happen Mon, 2014-03-10 11:55 JLab to Test Emergency Notification Tools at 9:45am on March 11 Fri, 2014-03-07 08:07 New Deltek timesheet training slides Thu, 2014-03-06 10:46 Stewardship of the DOE NP Nuclear Theory Computing and Medium Energy Portfolios- A message from Timothy Hallman Wed, 2014-03-05 14:55 Daylight Saving

  19. 2015 - 07 | Jefferson Lab

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

    7 Jul 2015 Wed, 2015-07-29 15:55 JLab's Governor's School Mentorship Program Seeks Volunteer Mentors for 2015-16 School Year Thu, 2015-07-23 09:13 Laser Safety Orientation SAF114O Fri, 2015-07-17 13:17 CEBAF Center Roof Work to Impact Parking Lot, Loading Dock Area Thu, 2015-07-16 09:43 Video Link to DOE Deputy Secretary's July 7 All-Hands Meeting in CC Auditorium Sun, 2015-07-12 18:05 Reduced Graphic Arts Support at Jefferson Lab During Remainder of July and August Sun, 2015-07-12 18:00 Lab

  20. 2002 | Jefferson Lab

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

    Dec 2002 Sun, 2002-12-01 14:00 OnTarget December 2002 Nov 2002 Fri, 2002-11-01 14:00 OnTarget November 2002 Oct 2002 Tue, 2002-10-01 15:00 OnTarget September and October 2002 Tue, 2002-10-01 15:00 LOOKING BACK ON 15 YEARS AT THE LAB Aug 2002 Thu, 2002-08-01 15:00 OnTarget August 2002 Jul 2002 Mon, 2002-07-01 15:00 OnTarget June and July 2002 May 2002 Wed, 2002-05-01 15:00 OnTarget May 2002 Apr 2002 Mon, 2002-04-01 14:00 OnTarget April 2002 Mar 2002 Fri, 2002-03-01 14:00 OnTarget February March

  1. 2006 | Jefferson Lab

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

    Dec 2006 Tue, 2006-12-19 00:00 JLab Newsletter: e-OnTarget - December 2006 Nov 2006 Tue, 2006-11-28 17:52 JLab Newsletter: e-OnTarget - November 2006 Oct 2006 Mon, 2006-10-02 15:00 JLab Newsletter: e-OnTarget - October 2006 Aug 2006 Fri, 2006-08-18 15:00 JLab Newsletter: e-OnTarget August 2006 Jul 2006 Wed, 2006-07-12 15:00 JLab Newsletter: e-OnTarget July 2006 May 2006 Mon, 2006-05-15 15:00 JLab Newsletter: e-OnTarget May 2006 Apr 2006 Fri, 2006-04-07 15:00 JLab Newsletter: e-OnTarget- April

  2. Poster — Thur Eve — 77: Implanted Brachythearpy Seed Movement due to Transrectal Ultrasound Probe-Induced Prostate Deformation

    SciTech Connect (OSTI)

    Liu, D; Usmani, N; Sloboda, R; Meyer, T; Husain, S; Angyalfi, S; Kay, I

    2014-08-15

    The study investigated the movement of implanted brachytherapy seeds upon transrectal US probe removal, providing insight into the underlying prostate deformation and an estimate of the impact on prostate dosimetry. Implanted seed distributions, one obtained with the prostate under probe compression and another with the probe removed, were reconstructed using C-arm fluoroscopy imaging. The prostate, delineated on ultrasound images, was registered to the fluoroscopy images using seeds and needle tracks identified on ultrasound. A deformation tensor and shearing model was developed to correlate probe-induced seed movement with position. Changes in prostate TG-43 dosimetry were calculated. The model was used to infer the underlying prostate deformation and to estimate the location of the prostate surface in the absence of probe compression. Seed movement patterns upon probe removal reflected elastic decompression, lateral shearing, and rectal bending. Elastic decompression was characterized by expansion in the anterior-posterior direction and contraction in the superior-inferior and lateral directions. Lateral shearing resulted in large anterior movement for extra-prostatic seeds in the lateral peripheral region. Whole prostate D90 increased up to 8 Gy, mainly due to the small but systematic seed movement associated with elastic decompression. For selected patients, lateral shearing movement increased prostate D90 by 4 Gy, due to increased dose coverage in the anterior-lateral region at the expense of the posterior-lateral region. The effect of shearing movement on whole prostate D90 was small compared to elastic decompression due to the subset of peripheral seeds involved, but is expected to have greater consequences for local dose coverage.

  3. Poster — Thur Eve — 42: Radiochromic film calibration for low-energy seed brachytherapy dose measurement

    SciTech Connect (OSTI)

    Morrison, H; Menon, G; Sloboda, R

    2014-08-15

    The purpose of this study was to investigate the accuracy of radiochromic film calibration procedures used in external beam radiotherapy when applied to I-125 brachytherapy sources delivering higher doses, and to determine any necessary modifications to achieve similar accuracy in absolute dose measurements. GafChromic EBT3 film was used to measure radiation doses upwards of 35 Gy from 6 MV, 75 kVp and (∼28 keV) I-125 photon sources. A custom phantom was used for the I-125 irradiations to obtain a larger film area with nearly constant dose to reduce the effects of film heterogeneities on the optical density (OD) measurements. RGB transmission images were obtained with an Epson 10000XL flatbed scanner, and calibration curves relating OD and dose using a rational function were determined for each colour channel and at each energy using a non-linear least square minimization method. Differences found between the 6 MV calibration curve and those for the lower energy sources are large enough that 6 MV beams should not be used to calibrate film for low-energy sources. However, differences between the 75 kVp and I-125 calibration curves were quite small; indicating that 75 kVp is a good choice. Compared with I-125 irradiation, this gives the advantages of lower type B uncertainties and markedly reduced irradiation time. To obtain high accuracy calibration for the dose range up to 35 Gy, two-segment piece-wise fitting was required. This yielded absolute dose measurement accuracy above 1 Gy of ∼2% for 75 kVp and ∼5% for I-125 seed exposures.

  4. Poster — Thur Eve — 18: Cherenkov Emission By High-Energy Radiation Therapy Beams: A Characterization Study

    SciTech Connect (OSTI)

    Zlateva, Y.; El Naqa, I.; Quitoriano, N.

    2014-08-15

    We investigate Cherenkov emission (CE) by radiotherapy beams via radiation dose-versus-CE correlation analyses, CE detection optimization by means of a spectral shift towards the near-infrared (NIR) window of biological tissue, and comparison of CE to on-board MV imaging. Dose-CE correlation was investigated via simulation and experiment. A Monte Carlo (MC) CE simulator was designed using Geant4. Experimental phantoms include: water; tissue-simulating phantom composed of water, Intralipid®, and beef blood; plastic phantom with solid water insert. The detector system comprises an optical fiber and diffraction-grating spectrometer incorporating a front/back-illuminated CCD. The NIR shift was carried out with CdSe/ZnS quantum dots (QDs), emitting at (650±10) nm. CE and MV images were acquired with a CMOS camera and electronic portal imaging device. MC and experimental studies indicate a strong linear dose-CE correlation (Pearson coefficient > 0.99). CE by an 18-MeV beam was effectively NIR-shifted in water and a tissue-simulating phantom, exhibiting a significant increase at 650 nm for QD depths up to 10 mm. CE images exhibited relative contrast superior to MV images by a factor of 30. Our work supports the potential for application of CE in radiotherapy online imaging for patient setup and treatment verification, since CE is intrinsic to the beam and non-ionizing and QDs can be used to improve CE detectability, potentially yielding image quality superior to MV imaging for the case of low-density-variability, low-optical-attenuation materials (ex: breast/oropharynx). Ongoing work involves microenvironment functionalization of QDs and application of multi-channel spectrometry for simultaneous acquisition of dosimetric and tumor oxygenation signals.

  5. SciThur AM: YIS - 07: Design and production of 3D printed bolus for electron radiation therapy

    SciTech Connect (OSTI)

    Su, Shiqin; Moran, Kathryn; Robar, James L.

    2014-08-15

    This is a proof-of-concept study demonstrating the capacity for modulated electron radiation therapy (MERT) using 3D printed bolus. Previous reports have involved bolus design using an electron pencil beam model and fabrication using a milling machine. In this study, an in-house algorithm is presented that optimizes the dose distribution with regard to dose coverage, conformity and homogeneity within planning target volume (PTV). The algorithm uses calculated result of a commercial electron Monte Carlo dose calculation as input. Distances along ray lines from distal side of 90% isodose to distal surface of PTV are used to estimate the bolus thickness. Inhomogeneities within the calculation volume are accounted for using coefficient of equivalent thickness method. Several regional modulation operators are applied to improve dose coverage and uniformity. The process is iterated (usually twice) until an acceptable MERT plan is realized, and the final bolus is printed using solid polylactic acid. The method is evaluated with regular geometric phantoms, anthropomorphic phantoms and a clinical rhabdomyosarcoma pediatric case. In all cases the dose conformity is improved compared to that with uniform bolus. The printed boluses conform well to the surface of complex anthropomorphic phantoms. For the rhabdomyosarcoma patient, the MERT plan yields a reduction of mean dose by 38.2% in left kidney relative to uniform bolus. MERT using 3D printed bolus appears to be a practical, low cost approach to generating optimized bolus for electron therapy. The method is effective in improving conformity of prescription isodose surface and in sparing immediately adjacent normal tissues.

  6. Poster — Thur Eve — 09: Evaluation of electrical impedance and computed tomography fusion algorithms using an anthropomorphic phantom

    SciTech Connect (OSTI)

    Chugh, Brige Paul; Krishnan, Kalpagam; Liu, Jeff; Kohli, Kirpal

    2014-08-15

    Integration of biological conductivity information provided by Electrical Impedance Tomography (EIT) with anatomical information provided by Computed Tomography (CT) imaging could improve the ability to characterize tissues in clinical applications. In this paper, we report results of our study which compared the fusion of EIT with CT using three different image fusion algorithms, namely: weighted averaging, wavelet fusion, and ROI indexing. The ROI indexing method of fusion involves segmenting the regions of interest from the CT image and replacing the pixels with the pixels of the EIT image. The three algorithms were applied to a CT and EIT image of an anthropomorphic phantom, constructed out of five acrylic contrast targets with varying diameter embedded in a base of gelatin bolus. The imaging performance was assessed using Detectability and Structural Similarity Index Measure (SSIM). Wavelet fusion and ROI-indexing resulted in lower Detectability (by 35% and 47%, respectively) yet higher SSIM (by 66% and 73%, respectively) than weighted averaging. Our results suggest that wavelet fusion and ROI-indexing yielded more consistent and optimal fusion performance than weighted averaging.

  7. Poster Thur Eve 56: Design of Quality Assurance Methodology for VMAT system on Agility System equipped with CVDR

    SciTech Connect (OSTI)

    Thind, K; Tolakanahalli, R

    2014-08-15

    The aim of this study was to analyze the feasibility of designing comprehensive QA plans using iComCAT for Elekta machines equipped with Agility multileaf collimator and continuously variable dose rate. Test plans with varying MLC speed, gantry speed, and dose rate were created and delivered in a controlled manner. A strip test was designed with three 1 cm MLC positions and delivered using dynamic, StepNShoot and VMAT techniques. Plans were also designed to test error in MLC position with various gantry speeds and various MLC speeds. The delivery fluence was captured using the electronic portal-imaging device. Gantry speed was found to be within tolerance as per the Canadian standards. MLC positioning errors at higher MLC speed with gravity effects does add more than 2 mm discrepancy. More tests need to be performed to evaluate MLC performance using independent measurement systems. The treatment planning system with end-to-end testing necessary for commissioning was also investigated and found to have >95% passing rates within 3%/3mm gamma criteria. Future studies involve performing off-axis gantry starshot pattern and repeating the tests on three matched Elekta linear accelerators.

  8. WE-D-18A-05: Construction of Realistic Liver Phantoms From Patient Images and a Commercial 3D Printer

    SciTech Connect (OSTI)

    Leng, S; Vrieze, T; Kuhlmann, J; Yu, L; Matsumoto, J; Morris, J; McCollough, C

    2014-06-15

    Purpose: To assess image quality and radiation dose reduction in abdominal CT imaging, physical phantoms having realistic background textures and lesions are highly desirable. The purpose of this work was to construct a liver phantom with realistic background and lesions using patient CT images and a 3D printer. Methods: Patient CT images containing liver lesions were segmented into liver tissue, contrast-enhanced vessels, and liver lesions using commercial software (Mimics, Materialise, Belgium). Stereolithography (STL) files of each segmented object were created and imported to a 3D printer (Object350 Connex, Stratasys, MN). After test scans were performed to map the eight available printing materials into CT numbers, printing materials were assigned to each object and a physical liver phantom printed. The printed phantom was scanned on a clinical CT scanner and resulting images were compared with the original patient CT images. Results: The eight available materials used to print the liver phantom had CT number ranging from 62 to 117 HU. In scans of the liver phantom, the liver lesions and veins represented in the STL files were all visible. Although the absolute value of the CT number in the background liver material (approx. 85 HU) was higher than in patients (approx. 40 HU), the difference in CT numbers between lesions and background were representative of the low contrast values needed for optimization tasks. Future work will investigate materials with contrast sufficient to emulate contrast-enhanced arteries. Conclusion: Realistic liver phantoms can be constructed from patient CT images using a commercial 3D printer. This technique may provide phantoms able to determine the effect of radiation dose reduction and noise reduction techniques on the ability to detect subtle liver lesions in the context of realistic background textures.

  9. WE-D-9A-06: Open Source Monitor Calibration and Quality Control Software for Enterprise Display Management

    SciTech Connect (OSTI)

    Bevins, N; Vanderhoek, M; Lang, S; Flynn, M

    2014-06-15

    Purpose: Medical display monitor calibration and quality control present challenges to medical physicists. The purpose of this work is to demonstrate and share experiences with an open source package that allows for both initial monitor setup and routine performance evaluation. Methods: A software package, pacsDisplay, has been developed over the last decade to aid in the calibration of all monitors within the radiology group in our health system. The software is used to calibrate monitors to follow the DICOM Grayscale Standard Display Function (GSDF) via lookup tables installed on the workstation. Additional functionality facilitates periodic evaluations of both primary and secondary medical monitors to ensure satisfactory performance. This software is installed on all radiology workstations, and can also be run as a stand-alone tool from a USB disk. Recently, a database has been developed to store and centralize the monitor performance data and to provide long-term trends for compliance with internal standards and various accrediting organizations. Results: Implementation and utilization of pacsDisplay has resulted in improved monitor performance across the health system. Monitor testing is now performed at regular intervals and the software is being used across multiple imaging modalities. Monitor performance characteristics such as maximum and minimum luminance, ambient luminance and illuminance, color tracking, and GSDF conformity are loaded into a centralized database for system performance comparisons. Compliance reports for organizations such as MQSA, ACR, and TJC are generated automatically and stored in the same database. Conclusion: An open source software solution has simplified and improved the standardization of displays within our health system. This work serves as an example method for calibrating and testing monitors within an enterprise health system.

  10. Fuel Cells: Making Power from Hydrogen

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

    Fuel Cells Calendar Fuel Cells Calendar Events for the Fuel Cell Technologies Office are listed below. September 2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 28 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 1

    CELLS FOR TRANSPORTATION 2 0 0 1 A N N U A L P R O G R E S S R E P O R T U.S. Department of Energy Energy Efficiency and Renewable Energy Office of Transportation Technologies A C K N O W L E D G E M E N T We would like to express our

  11. 2013 | Jefferson Lab

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

    Nov 2013 Tue, 11/26/2013 - 03:32pm LDRD, investing in ourselves Oct 2013 Mon, 10/28/2013 - 02:58pm A Tough Month Sep 2013 Wed, 09/25/2013 - 09:27am Technology and Engineering Development Facility Aug 2013 Tue, 08/20/2013 - 09:49am A Controlled Phase Transition Jul 2013 Mon, 07/15/2013 - 11:24am Recycling Magnets Jun 2013 Thu, 06/27/2013 - 11:31am Cloistered May 2013 Fri, 05/17/2013 - 10:34am Busy Week Apr 2013 Mon, 04/15/2013 - 11:51am President's Budget for FY2014 Mar 2013 Mon, 03/04/2013 -

  12. ATR NSUF

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

    previous daynext daytodaySelect date Calendar Title and navigation Title and navigation << < September, 2016 > << September, 2016 S M T W T F S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Day Week Month Agenda Sep, 2016 Sun Mon Tue Wed Thu Fri Sat 28 29 30 31 01 Sep 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 01 Oct View Edit Delete New Appointment New Recurring Appointment Go to today

  13. Events Calendar | Department of Energy

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

    Events Calendar Events Calendar August 2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 31 1 2 3 4 5 6 HydroNEXT Funding Opportunity Announcement Informational Webinar 4:00PM to 5:00PM EDT Energy Efficiency Olympiad: Best Practices from Around the World (201) 1:00PM to 2:30PM EDT 7 8 9 10 11 12 13 Gold Medal Approaches for Obtaining and Using Energy Efficiency Data (101) 1:00PM to 2:30PM EDT 14 15 16 17 18 19 20 Rooftop Unit Tune-Ups: The AirCare Plus Program from ComEd and CLEAResult

  14. DOE Exhibit D 2-6-06.doc

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

    6 / 06 2 Sun Mon Tue Wed Thu Fri Sat 1 Units # 1 & 4 on, with trona 2 3 4 Unit # 4 off for boiler leak 5 Units # 1 on, with trona Another base load unit will be added with trona as soon as repairs are made and model results completed 6 . 7 8 9 10 11 12 Unit #3 or 4 or, #5 on Units #1 & base unit on, with trona 13 14 15 16 17 18 19 Units # 1 & base unit on, with trona 20 21 22 23 24 25 26 Units # 1, & base unit on, with trona 27 28 Multi unit operation will be at all times in

  15. DOE Response Exhibit D Calendar 1-20-06 .doc

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

    ends in evening 28 Units # 2,3,5 off Units # 1 & 4 on, with trona 29 Units # 1 & 4 on, with trona 30 31 See Feb. 2006 January Exhibit D: Mirant Potomac River Schedule of Unit Operations Page 1 of 2 Revised 1 / 20 / 06 2 Sun Mon Tue Wed Thu Fri Sat 1 Units # 1 & 4 on, with trona 2 3 4 5 Units # 1 & 4 on, with trona 6 . 7 8 9 10 11 12 Unit #4 off, #5 comes on Units #1 & 5 on, with trona 13 14 15 16 17 18 19 Units # 1 & 5 on, with trona Third trona system ready - connect to

  16. Buildings Events | Department of Energy

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

    Buildings Events Buildings Events August 2016 < prev next > Sun Mon Tue Wed Thu Fri Sat 31 1 2 3 4 5 6 Energy Efficiency Olympiad: Best Practices from Around the World (201) 1:00PM to 2:30PM EDT 7 8 9 10 11 12 13 Gold Medal Approaches for Obtaining and Using Energy Efficiency Data (101) 1:00PM to 2:30PM EDT 14 15 16 17 18 19 20 Rooftop Unit Tune-Ups: The AirCare Plus Program from ComEd and CLEAResult 12:00PM to 1:00PM EDT Vinicius, Quatchi, and You: Using Power Words and Branding to

  17. 2000 | Jefferson Lab

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

    Dec 2000 Fri, 2000-12-01 14:00 OnTarget December 2000 Nov 2000 Wed, 2000-11-01 14:00 OnTarget November 2000 Oct 2000 Sun, 2000-10-01 15:00 OnTarget Fall 2000 Jul 2000 Sat, 2000-07-01 15:00 OnTarget July 2000 Jun 2000 Thu, 2000-06-01 15:00 OnTarget June 2000 May 2000 Mon, 2000-05-01 15:00 Run-A-Round Mon, 2000-05-01 15:00 Boston Marathon Mon, 2000-05-01 15:00 Art Festival Mon, 2000-05-01 15:00 Take Our Children to Work Day Mon, 2000-05-01 15:00 OnTarget May 2000 Apr 2000 Sat, 2000-04-01 14:00

  18. 2001 | Jefferson Lab

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

    Dec 2001 Sat, 2001-12-01 14:00 OnTarget December 2001 Nov 2001 Thu, 2001-11-01 14:00 OnTarget November 2001 Oct 2001 Mon, 2001-10-01 15:00 Ontarget September and October 2001 Aug 2001 Wed, 2001-08-01 15:00 OnTarget July and August 2001 Jun 2001 Fri, 2001-06-01 15:00 OnTarget June 2001 May 2001 Tue, 2001-05-01 15:00 OnTarget May 2001 Apr 2001 Sun, 2001-04-01 15:00 OnTarget March and April 2001 Feb 2001 Thu, 2001-02-01 14:00 OnTarget February 20

  19. 2008 | Jefferson Lab

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

    Dec 2008 Mon, 2008-12-01 14:00 On Target December 2008 Oct 2008 Wed, 2008-10-01 15:00 On Target October & November 2008 Aug 2008 Fri, 2008-08-01 15:00 On Target August & September 2008 Jul 2008 Tue, 2008-07-01 15:00 On Target July 2008 Jun 2008 Sun, 2008-06-01 15:00 On Target June 2008 May 2008 Thu, 2008-05-01 15:00 On Target May 2008 Apr 2008 Tue, 2008-04-01 15:00 On Target April 2008 Mar 2008 Sat, 2008-03-01 14:00 On Target March 2008

  20. Poster Thur Eve 23: Dose and Position Quality Assurance using the RADPOS System for 4D Radiotherapy with CyberKnife

    SciTech Connect (OSTI)

    Marants, R; Vandervoort, E; Cygler, J E

    2014-08-15

    Introduction: RADPOS 4D dosimetry system consists of a microMOSFET dosimeter combined with an electromagnetic positioning sensor, which allows for performing real-time dose and position measurements simultaneously. In this report the use of RADPOS as an independent quality assurance (QA) tool during CyberKnife 4D radiotherapy treatment is described. In addition to RADPOS, GAFCHROMIC films were used for simultaneous dose measurement. Methods: RADPOS and films were calibrated in a Solid Water phantom at 1.5 cm depth, SAD= 80 cm, using 60 mm cone. CT based treatment plan was created for a Solid Water breast phantom containing metal fiducials and RADPOS probe. Dose calculations were performed using iPlan pencil beam algorithm. Before the treatment delivery, GAFCHROMIC film was inserted inside the breast phantom, next to the RADPOS probe. Then the phantom was positioned on the chest platform of the QUASAR, to which Synchrony LED optical markers were also attached. Position logging began for RADPOS and the Synchrony tracking system, the QUASAR motion was initiated and the treatment was delivered. Results: RADPOS position measurements very closely matched the LED marker positions recorded by the Synchrony camera tracking system. The RADPOS measured dose was 2.5% higher than the average film measured dose, which is within the experimental uncertainties. Treatment plan calculated dose was 4.1 and 1.6% lower than measured by RADPOS and film, respectively. This is most likely due to the inferior nature of the dose calculation algorithm. Conclusions: Our study demonstrates that RADPOS system is a useful tool for independent QA of CyberKnife treatments.

  1. SciThur PM: Imaging 03: A novel ?erenkov detector based on air-spaced light guiding taper for megavoltage x-ray imaging

    SciTech Connect (OSTI)

    Teymurazyan, A; Rowlands, J A; Pang, G

    2014-08-15

    Electronic Portal Imaging Devices (EPIDs) have been used in radiation therapy and are still needed on linear accelerators (Linacs) equipped with kilovoltage cone beam CT (kV-CBCT) or MRI systems. Recently a new concept of a high quantum efficiency (QE) ?erenkov Portal Imaging Device (CPID) for MV x-ray imaging in radiation therapy was introduced. It relies on ?erenkov effect for x-ray detection. The proposed design consisted of a matrix of optical fibres aligned with the incident x-rays and coupled to an active matrix flat panel imager (AMFPI) for image readout. A weakness of such design is that too few ?erenkov light photons reach the AMFPI for each incident x-ray and an AMFPI with an avalanche gain is required. In this work we propose to replace the optical fibers in the CPID with light guides without a cladding layer that are suspended in air. The air between the light guides takes on the role of the cladding layer found in a regular optical fiber. Since air has a significantly lower refractive index, a much superior light collection efficiency is achieved. Our Monte Carlo studies have shown that the modified new CPID has a QE more than an order of magnitude greater than that of current clinical systems and yet a spatial resolution similar to that of current flat-panel based EPIDs. Furthermore it has been demonstrated that the new CPID does not require an avalanche gain in the AMFPI and is quantum noise limited at dose levels corresponding to a single Linac pulse.

  2. Poster Thur Eve 17: In-phantom and Fluence-based Measurements for Quality Assurance of Volumetric-driven Adaptation of Arc Therapy

    SciTech Connect (OSTI)

    Schaly, B; Hoover, D; Mitchell, S; Wong, E

    2014-08-15

    During volumetric modulated arc therapy (VMAT) of head and neck cancer, some patients lose weight which may result in anatomical deviations from the initial plan. If these deviations are substantial a new treatment plan can be designed for the remainder of treatment (i.e., adaptive planning). Since the adaptive treatment process is resource intensive, one possible approach to streamlining the quality assurance (QA) process is to use the electronic portal imaging device (EPID) to measure the integrated fluence for the adapted plans instead of the currently-used ArcCHECK device (Sun Nuclear). Although ArcCHECK is recognized as the clinical standard for patient-specific VMAT plan QA, it has limited length (20 cm) for most head and neck field apertures and has coarser detector spacing than the EPID (10 mm vs. 0.39 mm). In this work we compared measurement of the integrated fluence using the EPID with corresponding measurements from the ArcCHECK device. In the past year nine patients required an adapted plan. Each of the plans (the original and adapted) is composed of two arcs. Routine clinical QA was performed using the ArcCHECK device, and the same plans were delivered to the EPID (individual arcs) in integrated mode. The dose difference between the initial plan and adapted plan was compared for ArcCHECK and EPID. In most cases, it was found that the EPID is more sensitive in detecting plan differences. Therefore, we conclude that EPID provides a viable alternative for QA of the adapted head and neck plans and should be further explored.

  3. Poster — Thur Eve — 33: The Influence of a Modeled Treatment Couch on Dose Distributions During IMRT and RapidArc Treatment Delivery

    SciTech Connect (OSTI)

    Aldosary, Ghada; Nobah, Ahmad; Al-Zorkani, Faisal; Moftah, Belal; Devic, Slobodan

    2014-08-15

    Treatment couches have been known to perturb dose delivery in patients. This effect is most pronounced in techniques such as IMRT and RapidArc. Although modern treatment planning systems (TPS) include data for a “default” treatment couch, actual couches are not manufactured identically. Thus, variations in their Hounsfield Unit (HU) values may exist. This study demonstrates a practical and simple method of acquiring reliable HU data for any treatment couch. We also investigate the effects of both the default and modeled treatment couches on absorbed dose. Experimental verifications show that by neglecting to incorporate the treatment couch in the TPS, dose differences of up to 9.5% and 7.3% were present for 4 MV and 10 MV photon beams, respectively. Furthermore, a clinical study based on a cohort of 20 RapidArc and IMRT (brain, pelvis and abdominal) cases is performed. 2D dose distributions show that without the couch in the planning phase, differences ≤ 4.6% and 5.9% for RapidArc and IMRT cases are present for the same cases that the default couch was added to. Additionally, in comparison to the default couch, employing the modeled couch in the calculation process influences dose distributions by ≤ 2.7% and 8% for RapidArc and IMRT cases, respectively. This result was found to be site specific; where an accurate couch proves to be preferable for IMRT brain plans. As such, adding the couch during dose calculation decreases dose calculation errors, and a precisely modeled treatment couch offers higher dose delivery accuracy for brain treatment using IMRT.

  4. Poster — Thur Eve — 44: Linearization of Compartmental Models for More Robust Estimates of Regional Hemodynamic, Metabolic and Functional Parameters using DCE-CT/PET Imaging

    SciTech Connect (OSTI)

    Blais, AR; Dekaban, M; Lee, T-Y

    2014-08-15

    Quantitative analysis of dynamic positron emission tomography (PET) data usually involves minimizing a cost function with nonlinear regression, wherein the choice of starting parameter values and the presence of local minima affect the bias and variability of the estimated kinetic parameters. These nonlinear methods can also require lengthy computation time, making them unsuitable for use in clinical settings. Kinetic modeling of PET aims to estimate the rate parameter k{sub 3}, which is the binding affinity of the tracer to a biological process of interest and is highly susceptible to noise inherent in PET image acquisition. We have developed linearized kinetic models for kinetic analysis of dynamic contrast enhanced computed tomography (DCE-CT)/PET imaging, including a 2-compartment model for DCE-CT and a 3-compartment model for PET. Use of kinetic parameters estimated from DCE-CT can stabilize the kinetic analysis of dynamic PET data, allowing for more robust estimation of k{sub 3}. Furthermore, these linearized models are solved with a non-negative least squares algorithm and together they provide other advantages including: 1) only one possible solution and they do not require a choice of starting parameter values, 2) parameter estimates are comparable in accuracy to those from nonlinear models, 3) significantly reduced computational time. Our simulated data show that when blood volume and permeability are estimated with DCE-CT, the bias of k{sub 3} estimation with our linearized model is 1.97 ± 38.5% for 1,000 runs with a signal-to-noise ratio of 10. In summary, we have developed a computationally efficient technique for accurate estimation of k{sub 3} from noisy dynamic PET data.

  5. Poster Thur Eve 51: An analysis of the effectiveness of automated pre-, post- and intra-treatment auditing of electronic health records

    SciTech Connect (OSTI)

    Joseph, A.; Seuntjens, J.; Parker, W.; Kildea, J.; Freeman, C.

    2014-08-15

    We describe development of automated, web-based, electronic health record (EHR) auditing software for use within our paperless radiation oncology clinic. By facilitating access to multiple databases within the clinic, each patient's EHR is audited prior to treatment, regularly during treatment, and post treatment. Anomalies such as missing documentation, non-compliant workflow and treatment parameters that differ significantly from the norm may be monitored, flagged and brought to the attention of clinicians. By determining historical trends using existing patient data and by comparing new patient data with the historical, we expect our software to provide a measurable improvement in the quality of radiotherapy at our centre.

  6. Sci—Thur PM: Imaging — 05: Calibration of a SPECT/CT camera for quantitative SPECT with {sup 99m}Tc

    SciTech Connect (OSTI)

    Gaudin, Émilie; Montégiani, Jean-François; Després, Philippe; Beauregard, Jean-Mathieu

    2014-08-15

    While quantitation is the norm in PET, it is not widely available yet in SPECT. This work's aim was to calibrate a commercially available SPECT/CT system to perform quantitative SPECT. Counting sensitivity, dead-time (DT) constant and partial volume effect (PVE) of the system were assessed. A dual-head Siemens SymbiaT6 SPECT/CT camera equipped with low energy high-resolution collimators was studied. {sup 99m}Tc was the radioisotope of interest because of its wide usage in nuclear medicine. First, point source acquisitions were performed (activity: 30–990MBq). Further acquisitions were then performed with a uniform Jaszczak phantom filled with water at high activity (25–5000MBq). PVE was studied using 6 hot spheres (diameters: 9.9–31.2 mm) filled with {sup 99m}Tc (2.8MBq/cc) in the Jaszczak phantom, which was: (1) empty, (2) water-filled and (3) water-filled with low activity (0.1MBq/cc). The data was reconstructed with the Siemens's Flash3D iterative algorithm with 4 subsets and 8 iterations, attenuation-correction (AC) and scatter-correction (SC). DT modelling was based on the total spectrum counting rate. Sensitivity was assessed using AC-SC reconstructed SPECT data. Sensitivity and DT for the sources were 99.51±1.46cps/MBq and 0.60±0.04µs. For the phantom, sensitivity and DT were 109.9±2.3cps/MBq and 0.62±0.13µs. The recovery-coefficient varied from 5% for the 9.9mm, to 80% for the 31.2mm spheres. With our calibration methods, both sensitivity and DT constant of the SPECT camera had little dependence on the object geometry and attenuation. For small objects of known size, recovery-coefficient can be applied to correct PVE. Clinical quantitative SPECT appears to be possible and has many potential applications.

  7. Poster Thur Eve 36: Implementation of constant dose rate and gantry speed arc therapy(CDR-CAS-IMAT) for thoracic esophageal carcinoma on Varian 23EX

    SciTech Connect (OSTI)

    Zhang, Ruohui; Fan, Xiaomei; Bai, Wenwen; Han, Chun

    2014-08-15

    Objective: The purpose of this study is to propose an alternative planning approach for VMAT using constant dose rate and gantry speed arc therapy(CDR-CAS-IMAT) implementation on conventional Linac Varian 23EX and used IMRT as a benchmark to evaluate the performance. Methods and materials: Eighteen patients with thoracic esophageal carcinoma who were previously treated with IMRT on Varian 23EX were retrospectively planned for CDR-CAS-IMAT plans. Dose prescription was set to 60 Gy to PTVs in 30 fractions. The planning objectives for PTVs and OAR were corresponding with the IMRT plans. Dose to the PTVs and OAR were compared to IMRT with respect to plan quality, MU, treatment time and delivery accuracy. Results: CDR-CAS-IMAT plans led to equivalent or superior plan quality as compared to IMRT, PTV's CI relative increased 16.2%, while small deviations were observed on minimum dose for PTV. Volumes in the cord receiving 40Gy were increased from 3.6% with IMRT to 7.0%. Treatment times were reduced significantly with CDR-CAS-IMAT(mean 85.7s vs. 232.1s, p < .05), however, MU increased by a factor of 1.3 and lung V10/5/3.5/aver were relative increase 6.7%,12%,17.9%,4.2%, respectively. And increased the E-P low dose area volume decreased the hight dose area. There were no significant difference in Delta4 measurements results between both planning techniques. Conclusion: CDR-CAS-IMAT plans can be implemented smoothly and quickly into a busy cancer center, which improved PTV CI and reduces treatment time but increased the MU and low dose irradiated area. An evaluation of weight loss must be performed during treatment for CDR-CAS-IMAT patients.

  8. SciThur AM: YIS - 01: Dosimetric Analysis of Respiratory Induced Cardiac Intrafraction Motion in Left-sided Breast Cancer Radiotherapy

    SciTech Connect (OSTI)

    El-Sherif, O; Xhaferllari, I; Patrick, J; Yu, E; Gaede, S

    2014-08-15

    Introduction: Long-term cardiac side effects in left-sided breast cancer patients (BREL) after post-operative radiotherapy has become one of the most debated issues in radiation oncology. Through breathing-adapted radiotherapy the volume of the heart exposed to radiation can be significantly reduced by delivering the radiation only at the end of inspiration phase of the respiratory cycle, this is referred to as inspiration gating (IG). The purpose of this study is to quantify the potential reduction in cardiac exposure during IG compared to conventional BREL radiotherapy and to assess the dosimetric impact of cardiac motion due to natural breathing. Methods: 24 BREL patients treated with tangential parallel opposed photon beams were included in this study. All patients received a standard fast helical planning CT (FH-CT) and a 4D-CT. Treatment plans were created on the FH-CT using a clinical treatment planning system. The original treatment plan was then superimposed onto the end of inspiration CT and all 10 phases of the 4D-CT to quantify the dosimetric impact of respiratory motion and IG through 4D dose accumulation. Results: Through IG the mean dose to the heart, left ventricle, and left anterior descending artery (LAD) can be reduced in comparison to the clinical standard BREL treatment by as much as 8.39%, 10.11%, and 13.71% respectively (p < 0.05). Conclusion: Failure to account for respiratory motion can lead to under or overestimation in the calculated DVH for the heart, and it's sub-structures. IG can reduce cardiac exposure especially to the LAD during BREL radiotherapy.

  9. Sci—Thur AM: YIS - 03: irtGPUMCD: a new GPU-calculated dosimetry code for {sup 177}Lu-octreotate radionuclide therapy of neuroendocrine tumors

    SciTech Connect (OSTI)

    Montégiani, Jean-François; Gaudin, Émilie; Després, Philippe; Jackson, Price A.; Beauregard, Jean-Mathieu

    2014-08-15

    In peptide receptor radionuclide therapy (PRRT), huge inter-patient variability in absorbed radiation doses per administered activity mandates the utilization of individualized dosimetry to evaluate therapeutic efficacy and toxicity. We created a reliable GPU-calculated dosimetry code (irtGPUMCD) and assessed {sup 177}Lu-octreotate renal dosimetry in eight patients (4 cycles of approximately 7.4 GBq). irtGPUMCD was derived from a brachytherapy dosimetry code (bGPUMCD), which was adapted to {sup 177}Lu PRRT dosimetry. Serial quantitative single-photon emission computed tomography (SPECT) images were obtained from three SPECT/CT acquisitions performed at 4, 24 and 72 hours after {sup 177}Lu-octreotate administration, and registered with non-rigid deformation of CT volumes, to obtain {sup 177}Lu-octreotate 4D quantitative biodistribution. Local energy deposition from the β disintegrations was assumed. Using Monte Carlo gamma photon transportation, irtGPUMCD computed dose rate at each time point. Average kidney absorbed dose was obtained from 1-cm{sup 3} VOI dose rate samples on each cortex, subjected to a biexponential curve fit. Integration of the latter time-dose rate curve yielded the renal absorbed dose. The mean renal dose per administered activity was 0.48 ± 0.13 Gy/GBq (range: 0.30–0.71 Gy/GBq). Comparison to another PRRT dosimetry code (VRAK: Voxelized Registration and Kinetics) showed fair accordance with irtGPUMCD (11.4 ± 6.8 %, range: 3.3–26.2%). These results suggest the possibility to use the irtGPUMCD code in order to personalize administered activity in PRRT. This could allow improving clinical outcomes by maximizing per-cycle tumor doses, without exceeding the tolerable renal dose.

  10. Poster — Thur Eve — 06: Dose assessment of cone beam CT imaging protocols as part of SPECT/CT examinations

    SciTech Connect (OSTI)

    Tonkopi, E; Ross, AA

    2014-08-15

    Purpose: To assess radiation dose from the cone beam CT (CBCT) component of SPECT/CT studies and to compare with other CT examinations performed in our institution. Methods: We used an anthropomorphic chest phantom and the 6 cc ion chamber to measure entrance breast dose for several CBCT and diagnostic CT acquisition protocols. The CBCT effective dose was calculated with ImPACT software; the CT effective dose was evaluated from the DLP value and conversion factor, dependent on the anatomic region. The RADAR medical procedure radiation dose calculator was used to assess the nuclear medicine component of exam dose. Results: The entrance dose to the breast measured with the anthropomorphic phantom was 0.48 mGy and 9.41 mGy for cardiac and chest CBCT scans; and 4.59 mGy for diagnostic thoracic CT. The effective doses were 0.2 mSv, 3.2 mSv and 2.8 mSv respectively. For a small patient represented by the anthropomorphic phantom, the dose from the diagnostic CT was lower than from the CBCT scan, as a result of the exposure reduction options available on modern CT scanners. The CBCT protocols used the same fixed scanning techniques. The diagnostic CT dose based on the patient data was 35% higher than the phantom dose. For most SPECT/CT studies the dose from the CBCT component was comparable with the dose from the radiopharmaceutical. Conclusions: The patient radiation dose from the cone beam CT scan can be higher than that from a diagnostic CT and should be taken into consideration in evaluating total SPECT/CT patient dose.

  11. Poster Thur Eve 39: Feasibility of Commissioning HybridArc with the Delta 4 two plane diode phantom: comparisons with Gafchromic Film

    SciTech Connect (OSTI)

    Bojechko, C.; Ploquin, N.; Hudson, A.; Sayous, Y.

    2014-08-15

    HybridArc is a relatively novel radiation therapy technique which combines optimized dynamic conformai arcs (DCA) and intensity modulated radiation therapy (IMRT). HybridArc has possible dosimetry and efficiency advantages over stand alone DCA and IMRT treatments and can be readily implemented on any linac capable of DCA and IMRT, giving strong motivation to commission the modality. The Delta4 phantom (Scandidos, Uppsala, Sweden) has been used for IMRT and VMAT clinical dosimetric verification making it a candidate for HybridArc commissioning. However the HybridArc modality makes use of several non co-planar arcs which creates setup issues due to the geometry of the Delta4, resulting in possible phantom gantry collisions for plans with non-zero couch angles. An analysis was done determining the feasibility of using the Delta4 fixed at 0 couch angle compared with results obtained using Gafchromic ETB2 film (Ashland, Covington Kentucky) in an anthropomorphic phantom at the planned couch angles. A gamma index analysis of the measured and planned dose distributions was done using Delta4 and DoseLab Pro (Mobius Medical Systems, Houston Texas) software. For both arc and IMRT sub-fields there is reasonable correlation between the gamma index found from the Delta4 and Gafchromic film. All results show the feasibility of using the Delta4 for HybridArc commissioning.

  12. Sci—Fri PM: Dosimetry—02: A Nested Neutron Spectrometer to Measure Neutron Spectra in Radiotherapy

    SciTech Connect (OSTI)

    Maglieri, R; Seuntjens, J; Kildea, J; Licea, A

    2014-08-15

    During high-energy radiotherapy treatments, neutrons are produced in the head of the linac through photonuclear interactions. This has been a concern for many years as photoneutrons contribute to the accepted, yet unwanted, out-of-field doses that pose an iatrogenic risk to patients and an occupational risk to personnel. Presently, in-room neutron measurements are difficult and time-consuming and have traditionally been carried out using Bonner spheres with activation foils and TLDs. In this work, a new detector, the Nested Neutron Spectrometer (NNS) is tested for use in radiotherapy bunkers. The NNS is designed for easy handling and is more practical than the traditional Bonner spheres. The NNS, operated in current mode, was used to measure the dose equivalent, average energy and energy spectrum at several positions in a radiotherapy bunker. The average energy and spectra were compared to Monte Carlo simulations while the dose equivalent was compared to bubble detector measurements. The average energies, as measured by the NNS and Monte Carlo simulations, differed by approximately 30% across the bunker. Measurements of the dose equivalent using the NNS and the bubble detectors agreed within 50% in the maze and less than 10% close to the linac head. Apart from some discrepancies at thermal energies, we also found reasonable agreement between NNS-measured and Monte Carlo-simulated spectra at a number of locations within our radiotherapy bunker. Our results demonstrate that the NNS is a suitable detector to be used in high dose-rate radiotherapy environments.

  13. H. B. Fry, Staff Assistant NJ-, i.4 SUBJECT: DISCUSSION CCSJCERMZIQ...

    Office of Legacy Management (LM)

    In the discussion of the work which would be continued at the Bureau of Standards, it was M r. Rodden's thought that the Bureau Fould require two people in their chemical analysie ...

  14. Scrambled and fried: Cigarette smoke exposure causes antral follicle destruction and oocyte dysfunction through oxidative stress

    SciTech Connect (OSTI)

    Sobinoff, A.P.; Beckett, E.L.; Jarnicki, A.G.; Sutherland, J.M.; McCluskey, A.; Hansbro, P.M.; McLaughlin, E.A.

    2013-09-01

    Cigarette smoke is a reproductive hazard associated with pre-mature reproductive senescence and reduced clinical pregnancy rates in female smokers. Despite an increased awareness of the adverse effects of cigarette smoke exposure on systemic health, many women remain unaware of the adverse effects of cigarette smoke on female fertility. This issue is compounded by our limited understanding of the molecular mechanisms behind cigarette smoke induced infertility. In this study we used a direct nasal exposure mouse model of cigarette smoke-induced chronic obstructive pulmonary disease to characterise mechanisms of cigarette-smoke induced ovotoxicity. Cigarette smoke exposure caused increased levels of primordial follicle depletion, antral follicle oocyte apoptosis and oxidative stress in exposed ovaries, resulting in fewer follicles available for ovulation. Evidence of oxidative stress also persisted in ovulated oocytes which escaped destruction, with increased levels of mitochondrial ROS and lipid peroxidation resulting in reduced fertilisation potential. Microarray analysis of ovarian tissue correlated these insults with a complex mechanism of ovotoxicity involving genes associated with detoxification, inflammation, follicular activation, immune cell mediated apoptosis and membrane organisation. In particular, the phase I detoxifying enzyme cyp2e1 was found to be significantly up-regulated in developing oocytes; an enzyme known to cause molecular bioactivation resulting in oxidative stress. Our results provide a preliminary model of cigarette smoke induced sub-fertility through cyp2e1 bioactivation and oxidative stress, resulting in developing follicle depletion and oocyte dysfunction. - Highlights: Cigarette smoke exposure targets developing follicle oocytes. The antral follicle oocyte is a primary site of ovarian cigarette smoke metabolism. Cyp2e1 is a major enzyme involved in ameliorating smoke-induced ovotoxicity. Cigarette smoke causes oocyte mitochondrial ROS, impairing fertilisation.

  15. A Novel Low-Temperature Fiffusion Aluminide Coating for Ultrasupercritical Coal-Fried Boiler Applications

    SciTech Connect (OSTI)

    Zhang, Ying

    2009-12-31

    An ultrasupercritical (USC) boiler with higher steam temperature and pressure is expected to increase the efficiency of the coal-fired power plant and also decrease emissions of air pollutants. Ferritic/martensitic alloys have been developed with good creep strength for the key components in coal-fired USC plants. However, they typically suffer excessive steam-side oxidation, which contributes to one of main degradation mechanisms along with the fire-side corrosion in coal-fired boilers. As the steam temperature further increases in USC boilers, oxidation of the tube internals becomes an increasing concern, and protective coatings such as aluminide-based diffusion coatings need to be considered. However, conventional aluminizing processes via pack cementation or chemical vapor deposition are typically carried out at elevated temperatures (1000-1150 C). Thermochemical treatment of ferritic/martensitic alloys at such high temperatures could severely degrade their mechanical properties, particularly the alloy's creep resistance. The research focus of this project was to develop an aluminide coating with good oxidation resistance at temperatures {le} 700 C so that the coating processing would not detrimentally alter the creep performance of the ferritic/martensitic alloys. Nevertheless, when the aluminizing temperature is lowered, brittle Al-rich intermetallic phases, such as Fe{sub 2}Al{sub 5} and FeAl{sub 3}, tend to form in the coating, which may reduce the resistance to fatigue cracking. Al-containing binary masteralloys were selected based on thermodynamic calculations to reduce the Al activity in the pack cementation process and thus to prevent the formation of brittle Al-rich intermetallic phases. Thermodynamic computations were carried out using commercial software HSC 5.0 for a series of packs containing various Cr-Al binary masteralloys. The calculation results indicate that the equilibrium partial pressures of Al halides at 700 C were a function of Al content in the Cr-Al alloys. Cr-25Al and Cr-15Al were chosen as the masteralloys in the pack cementation process. In contrast to pure Al masteralloy which led to the formation of Fe{sub 2}Al{sub 5} coatings at 650 C, a coating consisting of a thin Fe{sub 2}Al{sub 5} outer layer and an FeAl inner layer was formed at 700 C with the Cr-25Al masteralloy. By switching to the Cr-15Al masteralloy, thin FeAl coatings ({approx}12 {micro}m) containing < 50 at.% Al were achieved at 700 C. The effect of the amount of masteralloys on coating growth was also studied by employing packs containing 2NH{sub 4}Cl-x(Cr-15Al)-(98-x)Al{sub 2}O{sub 3}, where x = 10, 20, 30, 40, 50, 60, and 70 wt.%. It was noticed that when the Cr-15Al masteralloy was increased from 10 to 40 wt.% in the pack, both coating thickness and surface Al content increased, suggesting that gas phase kinetics played an important role in Al deposition. However, with further increase of the masteralloy, solid state diffusion became the rate-limiting factor. The long-term oxidation performance of the aluminide coatings synthesized at 700 C with Cr-25Al and Cr-15Al masteralloys was evaluated in the water vapor environment at 650-700 C. The low-temperature pack coatings demonstrated excellent oxidation resistance at 650 C in humid air after {approx}1.2 yr testing. Longer lifetimes can be expected for these thin coatings due to minimal interdiffusion at this testing temperature. Exposure at 700 C was conducted to accelerate coating failure via increased interdiffusion of Al with the substrate alloy. The coatings also exhibited good oxidation protection up to 6,000-8,000 h at 700 C, with longer testing needed for coating failure to occur. Furthermore, the oxidation results indicate that in addition to the Al reservoir (as determined by the Al content and coating thickness), the initial coating surface quality had a significant impact on the oxidation behavior. In addition, the effect of various pack aluminide coatings on the creep resistance of coated T91 was investigated. Three representative types of coatings with diff

  16. Jeffers Wind Farm | Open Energy Information

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    Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Edison Mission GroupWED Developer Edison Mission GroupWED Energy Purchaser Northern States...

  17. 2011 | Jefferson Lab

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    Dec 2011 Wed, 2011-12-21 14:00 Jefferson Lab Weekly Briefs December 21, 2011 Wed, 2011-12-14 14:00 Jefferson Lab Weekly Briefs December 14, 2011 Wed, 2011-12-07 14:00 Jefferson Lab Weekly Briefs December 7, 2011 Nov 2011 Wed, 2011-11-30 14:00 Jefferson Lab Weekly Briefs November 30, 2011 Wed, 2011-11-23 14:00 Jefferson Lab Weekly Briefs November 23, 2011 Wed, 2011-11-16 14:00 Jefferson Lab Weekly Briefs November 16, 2011 Wed, 2011-11-09 14:00 Jefferson Lab Weekly Briefs November 9, 2011 Wed,

  18. Albert Einstein Distinguished Educator Fellowship Program accepting...

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    Deadline for applying is Nov. 19, 2015, at 8 p.m. EST FOR IMMEDIATE RELEASE Oct. 7, 2015 ... Program applications are due by Thurs., Nov. 19, 2015, at 8 p.m. EST and must be submitted ...

  19. Franklin to be Retired April 30, 2012

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    March 6, 2012 by Francesca Verdier Franklin and its external login node Freedom will be ... Franklin Thurs April 26, 23:59: Batch system is drained, batch queues are stopped (no ...

  20. Franklin retirement date is set: 04/30/2012

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    March 6, 2012 by Helen He The Franklin (and its external login node Freedom) retirement ... be created Thurs Apr 26, 23:59: Batch system is drained, batch queues are stopped (no ...

  1. WE-D-17A-05: Measurement of Stray Radiation Within An Active Scanning Proton Therapy Facility: EURADOS WG9 Intercomparison Exercise of Active Dosimetry Systems

    SciTech Connect (OSTI)

    Farah, J; Trompier, F; Stolarczyk, L; Klodowska, M; Liszka, M; Olko, P; Algranati, C; Fellin, F; Schwarz, M; Domingo, C; Romero-Exposito, M; Dufek, V; Frojdh, E; George, S; Harrison, R; Kubancak, J; Ploc, O; Knezevic, Z; Majer, M; Miljanic, S; and others

    2014-06-15

    Purpose: Intercomparison of active dosemeters in the measurement of stray radiation at the Trento active-scanning proton therapy facility. Methods: EURADOS WG9 carried out a large intercomparison exercise to test different dosemeters while measuring secondary neutrons within a 230 MeV scanned proton therapy facility. Detectors included two Bonner Sphere Spectrometers (BSS), three tissue equivalent proportional counters (TEPCHawk) and six rem-counters (Wendi II, Berthold, RadEye, a regular and an extended-range Anderson and Braun NM2B counters). Measurements of neutron ambient dose equivalents, H*(10), were done at several positions inside (8 positions) and outside (3 positions) the treatment room while irradiating a water tank phantom with a 10 10 10 cc field. Results: A generally good agreement on H*(10) values was observed for the tested detectors. At distance of 2.25 m and angles 45, 90 and 180 with respect to the beam axis, BSS and proportional counters agreed within 30%. Higher differences (up to 60%) were observed at the closest and farthest distances, i.e. at positions where detectors sensitivity, energy, fluence and angular response are highly dependent on neutron spectra (flux and energy). The highest neutron H*(10) value, ?60 microSv/Gy, was measured at 1.15 m along the beam axis. H*(10) decreased significantly with the distance from the isocenter dropping to 1.1 microSv/Gy at 4.25 m and 90 from beam axis, ?2 nanoSv/Gy at the entrance of the maze, 0.2 nanoSv/Gy at the door outside the room and below detection limit in the gantry control room and at an adjacent room. These values remain considerately lower than those of passively scattered proton beams. BSS and Hawk unfolded spectra provide valuable inputs when studying the response of each detector. Conclusion: TEPCs and BSS enable accurate measurements of stray neutrons while other rem-meters also give satisfactory results but require further improvements to reduce uncertainties.

  2. 2014 - 07 | Jefferson Lab

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    7 Jul 2014 Wed, 07/30/2014 - 03:32pm Gluons in our future

  3. 1995 - 05 | Jefferson Lab

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    5 May 1995 Wed, 1995-05-10 00:00 Physicists are Beaming (Daily Press

  4. 1995 - 11 | Jefferson Lab

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    11 Nov 1995 Wed, 1995-11-01 12:00 Research Begins at CEBAF

  5. 1995 | Jefferson Lab

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    Nov 1995 Wed, 1995-11-01 12:00 Research Begins at CEBAF

  6. 1997 - 10 | Jefferson Lab

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    10 Oct 1997 Wed, 1997-10-29 12:00 SURA Rewards Inventors

  7. 2010 - 12 | Jefferson Lab

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    2 Dec 2010 Wed, 2010-12-15 13:11 Probing the Proton's Weak Side

  8. 2011 - 12 | Jefferson Lab

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  9. 2012 - 05 | Jefferson Lab

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    5 May 2012 Wed, 05/09/2012 - 12:00am End of an Era

  10. 2000 - 03 | Jefferson Lab

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  12. 2002 - 05 | Jefferson Lab

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  13. 2003 - 10 | Jefferson Lab

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  14. 2008 - 10 | Jefferson Lab

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  15. 2009 - 07 | Jefferson Lab

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  16. 2010 - 09 | Jefferson Lab

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  18. 2011 - 06 | Jefferson Lab

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  19. 2011 - 10 | Jefferson Lab

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  20. 2012 - 03 | Jefferson Lab

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  1. 2012 - 04 | Jefferson Lab

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  2. 2012 - 06 | Jefferson Lab

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  3. 2012 - 08 | Jefferson Lab

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  4. 2013 - 02 | Jefferson Lab

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  5. 2013 - 03 | Jefferson Lab

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  12. 2014 - 02 | Jefferson Lab

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  14. 2014 - 05 | Jefferson Lab

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    5 May 2014 Wed, 2014-05-28 17:52 Jefferson Lab Weekly Briefs May 28, 2014 Wed, 2014-05-21 17:43 Jefferson Lab Weekly Briefs May 21, 2014 Wed, 2014-05-14 17:33 Jefferson Lab Weekly Briefs May 14, 2014 Wed, 2014-05-07 17:05 Jefferson Lab Weekly Briefs May 7

  15. 2014 - 10 | Jefferson Lab

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    0 Oct 2014 Wed, 2014-10-29 17:31 Jefferson Lab Weekly Briefs October 29, 2014 Wed, 2014-10-22 16:11 Jefferson Lab Weekly Briefs October 22, 2014 Wed, 2014-10-15 15:58 Jefferson Lab Weekly Briefs October 15, 2014 Wed, 2014-10-08 17:19 Jefferson Lab Weekly Briefs October 8

  16. 2014 - 11 | Jefferson Lab

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    1 Nov 2014 Wed, 2014-11-26 15:17 Jefferson Lab Weekly Briefs November 26, 2014 Wed, 2014-11-19 17:52 Jefferson Lab Weekly Briefs November 19, 2014 Wed, 2014-11-12 14:17 Jefferson Lab Weekly Briefs November 12, 2014 Wed, 2014-11-05 16:59 Jefferson Lab Weekly Briefs November 5

  17. 2015 - 02 | Jefferson Lab

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    2 Feb 2015 Wed, 2015-02-25 16:14 Jefferson Lab Weekly Briefs February 25, 2015 Wed, 2015-02-18 16:26 Jefferson Lab Weekly Briefs February 18, 2015 Wed, 2015-02-11 17:50 Jefferson Lab Weekly Briefs February 11, 2015 Wed, 2015-02-04 16:53 Jefferson Lab Weekly Briefs February

  18. 2015 - 03 | Jefferson Lab

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    3 Mar 2015 Wed, 2015-03-25 16:29 Jefferson Lab Weekly Briefs March 25, 2015 Wed, 2015-03-18 14:55 Jefferson Lab Weekly Briefs March 18, 2015 Wed, 2015-03-11 14:01 Jefferson Lab Weekly Briefs March 11, 2015 Wed, 2015-03-04 18:55 Jefferson Lab Weekly Briefs March

  19. 2015 - 06 | Jefferson Lab

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  20. 2015 - 08 | Jefferson Lab

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  1. 2016 - 07 | Jefferson Lab

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    7 Jul 2016 Wed, 2016-07-27 16:15 Jefferson Lab Weekly Briefs July 27, 2016 Wed, 2016-07-20 16:45 Jefferson Lab Weekly Briefs July 20, 2016 Wed, 2016-07-13 21:13 Jefferson Lab Weekly Briefs - July 13, 2016 Wed, 2016-07-06 20:19 Jefferson Lab Weekly Briefs - July 6

  2. 2012 | Jefferson Lab

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  3. 2013 | Jefferson Lab

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  4. 2014 | Jefferson Lab

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  5. 2011 - 11 | Jefferson Lab

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    1 Nov 2011 Wed, 2011-11-30 14:00 Jefferson Lab Weekly Briefs November 30, 2011 Wed, 2011-11-23 14:00 Jefferson Lab Weekly Briefs November 23, 2011 Wed, 2011-11-16 14:00 Jefferson Lab Weekly Briefs November 16, 2011 Wed, 2011-11-09 14:00 Jefferson Lab Weekly Briefs November 9, 2011 Wed, 2011-11-02 15:00 Jefferson Lab Weekly Briefs November 2

  6. 2012 - 02 | Jefferson Lab

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  13. 2014 - 07 | Jefferson Lab

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  14. 2015 - 04 | Jefferson Lab

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  15. 2015 - 07 | Jefferson Lab

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  16. National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Fri, 16 Sep 2016 06:14:25 +0000

  17. SciFri PM: Topics 08: The Role and Benefits of Electromagnetic Needle-Tracking Technologies in Brachytherapy

    SciTech Connect (OSTI)

    Beaulieu, L.; Racine, E.; Boutaleb, S.; Filion, O.; Poulin, E.; Hautvast, G.; Binnekamp, D.

    2014-08-15

    In modern brachytherapy, application of large doses of ionizing radiation in a limited number of fractions is frequent. Furthermore, as with any surgical procedures, brachytherapy is subject to learning curve effects. In this context, there could be advantages of integrating real-time tracking of needles/catheters to existing protocols given the recent prominent advances in tracking technologies. In this work, we review the use of an electromagnetic tracking system (EMTS) based on the second generation Aurora Planar Field Generator (Northern Digital Inc) and custom design needles (Philips Healthcare) for brachytherapy applications. The position and orientation information is obtained from 5 degrees of freedom sensors. Basic system performance characterization is performed in well-controlled conditions to establish accuracy and reproducibility as well as potential interference from standard brachytherapy equipment. The results show that sensor locations can be tracked to within 0.04mm (la) when located within 26cm of the generator. Orientation accuracy of the needle remained within 1 in the same region, but rose quickly at larger distances. The errors on position and orientation strongly dependent the sensor position in the characterization volume (500500500mm{sup 3}). The presence of an ultrasound probe was shown to have negligible effects on tracking accuracy. The use of EMTS for automatic catheter/applicator reconstruction was also explored. Reconstruction time was less than 10 sec/channel and tips identification was within 0.690.29mm of the reference values. Finally, we demonstrate that hollow needle designs with special EM adaptation also allow for real-time seed drop position estimation. In phantom experiments showed that drop positions were on average within 1.60.9mm of the reference position measured from ?CT. Altogether, EMTS offer promising benefits in a wide range of brachytherapy applications.

  18. The effects of total dissolved gas on chum salmon fry survival, growth, gas bubble disease, and seawater tolerance

    SciTech Connect (OSTI)

    Geist, David R.; Linley, Timothy J.; Cullinan, Valerie I.; Deng, Zhiqun

    2013-02-01

    Chum salmon Oncorhynchus keta alevin developing in gravel habitats downstream of Bonneville Dam on the Columbia River are exposed to elevated levels of total dissolved gas (TDG) when water is spilled at the dam to move migrating salmon smolts downstream to the Pacific Ocean. Current water quality criteria for the management of dissolved gas in dam tailwaters were developed primarily to protect salmonid smolts and are assumed to be protective of alevin if adequate depth compensation is provided. We studied whether chum salmon alevin exposed to six levels of dissolved gas ranging from 100% to 130% TDG at three development periods between hatch and emergence (hereafter early, middle, and late stage) suffered differential mortality, growth, gas bubble disease, or seawater tolerance. Each life stage was exposed for 50 d (early stage), 29 d (middle stage), or 16 d (late stage) beginning at 13, 34, and 37 d post-hatch, respectively, through 50% emergence. The mortality for all stages from exposure to emergence was estimated to be 8% (95% confidence interval (CI) of 4% to 12%) when dissolved gas levels were between 100% and 117% TDG. Mortality significantly increased as dissolved gas levels rose above 117% TDG,; with the lethal concentration that produced 50% mortality (LC50 ) was estimated to be 128.7% TDG (95% CI of 127.2% to 130.2% TDG) in the early and middle stages. By contrast, there was no evidence that dissolved gas level significantly affected growth in any life stage except that the mean wet weight at emergence of early stage fish exposed to 130% TDG was significantly less than the modeled growth of unexposed fish. The proportion of fish afflicted with gas bubble disease increased with increasing gas concentrations and occurred most commonly in the nares and gastrointestinal tract. Early stage fish exhibited higher ratios of filament to lamellar gill chloride cells than late stage fish, and these ratios increased and decreased for early and late stage fish, respectively, as gas levels increased; however, there were no significant differences in mortality between life stages after 96 h in seawater. The study results suggest that current water quality guidelines for the management of dissolved gas appear to offer a conservative level of protection to chum salmon alevin incubating in gravel habitat downstream of Bonneville Dam.

  19. SciFri PM: Topics 03: The Global Task Force on Radiotherapy for Cancer Control: Core Investments

    SciTech Connect (OSTI)

    Van Dyk, J.; Jaffray, D. A.; MacPherson, M. S.

    2014-08-15

    The Union for International Cancer Control (UICC) is a membership-based, non-governmental organization with a mandate to to unite the cancer community to reduce the global cancer burden, to promote greater equity, and to integrate cancer control into the world health and development agenda. COMP is an associate member of the UICC. It is well recognized by the UICC that there are major gaps between high, and low and middle income countries, in terms of access to cancer services including access to radiation therapy. In this context, the UICC has developed a Global Task Force on Radiotherapy for Cancer Control with a charge to answer a single question: What does it cost to close the gap between what exists today and reasonable access to radiotherapy globally? The Task Force consists of leaders internationally recognized for their radiation treatment related expertise (radiation oncologists, medical physicists, radiation therapists) as well as those with global health and economics specialization. The Task Force has developed three working groups: (1) to look at the global burden of cancer; (2) to look at the infrastructure requirements (facilities, equipment, personnel); and (3) to consider outcomes in terms of numbers of lives saved and palliated patients. A report is due at the World Cancer Congress in December 2014. This presentation reviews the infrastructure considerations under analysis by the second work group. The infrastructure parameters being addressed include capital costs of buildings and equipment and operating costs, which include human resources, equipment servicing and quality control, and general overhead.

  20. SciFri AM: Mountain 02: A comparison of dose reduction methods on image quality for cone beam CT

    SciTech Connect (OSTI)

    Webb, R; Buckley, LA

    2014-08-15

    Modern radiotherapy uses highly conformai dose distributions and therefore relies on daily image guidance for accurate patient positioning. Kilovoltage cone beam CT is one technique that is routinely used for patient set-up and results in a high dose to the patient relative to planar imaging techniques. This study uses an Elekta Synergy linac equipped with XVI cone beam CT to investigate the impact of various imaging parameters on dose and image quality. Dose and image quality are assessed as functions of x-ray tube voltage, tube current and the number of projections in the scan. In each case, the dose measurements confirm that as each parameter increases the dose increases. The assessment of high contrast resolution shows little dependence on changes to the image technique. However, low contrast visibility suggests a trade off between dose and image quality. Particularly for changes in tube potential, the dose increases much faster as a function of voltage than the corresponding increase in low contrast image quality. This suggests using moderate values of the peak tube voltage (100 120 kVp) since higher values result in significant dose increases with little gain in image quality. Measurements also indicate that increasing tube current achieves the greatest degree of improvement in the low contrast visibility. The results of this study highlight the need to establish careful imaging protocols to limit dose to the patient and to limit changes to the imaging parameters to those cases where there is a clear clinical requirement for improved image quality.

  1. SciFri PM: Dosimetry06: Commissioning of a 3D patient specific QA system for hypofractionated prostate treatments

    SciTech Connect (OSTI)

    Rivest, R; Venkataraman, S; McCurdy, B

    2014-08-15

    The objective of this work is to commission the 6MV-SRS beam model in COMPASS (v2.1, IBA-Dosimetry) and validate its use for patient specific QA of hypofractionated prostate treatments. The COMPASS system consists of a 2D ion chamber array (MatriXX{sup Evolution}), an independent gantry angle sensor and associated software. The system can either directly calculate or reconstruct (using measured detector responses) a 3D dose distribution on the patient CT dataset for plan verification. Beam models are developed and commissioned in the same manner as a beam model is commissioned in a standard treatment planning system. Model validation was initially performed by comparing both COMPASS calculations and reconstructions to measured open field beam data. Next, 10 hypofractionated prostate RapidArc plans were delivered to both the COMPASS system and a phantom with ion chamber and film inserted. COMPASS dose distributions calculated and reconstructed on the phantom CT dataset were compared to the chamber and film measurements. The mean ( standard deviation) difference between COMPASS reconstructed dose and ion chamber measurement was 1.4 1.0%. The maximum discrepancy was 2.6%. Corresponding values for COMPASS calculation were 0.9 0.9% and 2.6%, respectively. The average gamma agreement index (3%/3mm) for COMPAS reconstruction and film was 96.7% and 95.3% when using 70% and 20% dose thresholds, respectively. The corresponding values for COMPASS calculation were 97.1% and 97.1%, respectively. Based on our results, COMPASS can be used for the patient specific QA of hypofractionated prostate treatments delivered with the 6MV-SRS beam.

  2. Poster Thur Eve 10: Partial kV CBCT, complete kV CBCT and EPID in breast treatment: a dose comparison study for skin, breasts, heart and lungs

    SciTech Connect (OSTI)

    Roussin, E; Archambault, L K; Wierzbicki, W

    2014-08-15

    The advantages of kilovoltage cone beam CT (kV CBCT) imaging over electronic portal imaging device (EPID) such as accurate 3D anatomy, soft tissue visualization, fast rigid registration and enhanced precision on patient positioning has lead to its increasing use in clinics. The benefits of this imaging technique are at the cost of increasing the dose to healthy surrounding organs. Our center has moved toward the use of daily partial rotation kV CBCT to restrict the dose to healthy tissues. This study aims to better quantify radiation doses from different image-guidance techniques such as tangential EPID, complete and partial kV CBCT for breast treatments. Cross-calibrated ionization chambers and kV calibrated Gafchromic films were used to measure the dose to the heart, lungs, breasts and skin. It was found that performing partial kV CBCT decreases the heart dose by about 36%, the lungs dose by 31%, the contralateral breast dose by 41% and the ipsilateral breast dose by 43% when compared to a full rotation CBCT. The skin dose measured for a full rotation CBCT was about 0.8 cGy for the contralateral breast and about 0.3 cGy for the ipsilateral breast. The study is still ongoing and results on skin doses for partial rotation kV CBCT as well as for tangential EPID images are upcoming.

  3. Poster — Thur Eve — 64: Preliminary investigation of arc configurations for optimal sparing of normal tissue in hypofractionated stereotactic radiotherapy (HF-SRT) of multiple brain metastases using a 5mm interdigitating micro-multileaf collimator

    SciTech Connect (OSTI)

    Leavens, C; Wronski, M; Lee, YK; Ruschin, M; Soliman, H; Sahgal, A

    2014-08-15

    Purpose: To evaluate normal tissue sparing in intra-cranial HF-SRT, comparing various arc configurations with the Synergy Beam Modulator (SynBM) and Agility linacs, the latter incorporating leaf interdigitation and backup jaws. Methods: Five patients with multiple brain metastases (BMs), (5 BMs (n=2), 3 BMs (n=3)) treated with HF-SRT using 25 Gy (n=2) or 30 Gy (n=3) in 5 fractions, were investigated. Clinical treatment plans used the SynBM. Each patient was retrospectively re-planned on Agility, employing three planning strategies: (A) one isocenter and dedicated arc for each BM; (B) a single isocenter, centrally placed with respect to BMs; (C) the isocenter and arc configuration used in the SynBM plan, where closely spaced (<5cm) BMs used a dedicated isocenter and arcs. Agility plans were normalized for PTV coverage and heterogeneity. Results and Conclusion: Strategy A obtained the greatest improvements over the SynBM plan, where the maximum OAR dose, and mean dose to normal brain (averaged for all patients) were reduced by 55cGy and 25cGy, respectively. Strategy B was limited by having a single isocenter, hence less jaw shielding and increased MLC leakage. The maximum OAR dose was reduced by 13cGy, however mean dose to normal brain increased by 84cGy. Strategy C reduced the maximum OAR dose and mean dose to normal brain by 32cGy and 9cGy, respectively. The results from this study indicate that, for intra-cranial HF-SRT of multiple BMs, Agility plans are equal or better than SynBM plans. Further planning is needed to investigate dose sparing using Strategy A and the SynBM.

  4. Poster Thur Eve 62: A Retrospective Assessment of the Prevalence and Dosimetric Effect of Lateral Electron Disequilibrium in a Population of Lung Cancer Patients Treated by Stereotactic Body Radiation Therapy

    SciTech Connect (OSTI)

    Disher, Brandon; Wade, Laura; Hajdok, George; Gaede, Stewart; Battista, Jerry J.; Palma, David

    2014-08-15

    Stereotactic Body Radiation Therapy (SBRT) is a treatment option for early stage non-small cell lung cancer (NSCLC). SBRT uses tightly conformed megavoltage (MV) x-ray beams to ablate the tumour. However, small MV x-ray fields may produce lateral electron disequilibrium (LED) within lung tissue, which can reduce the dose to tumour. The goal of this work is to estimate the prevalence of LED in NSCLC patients treated with SBRT, and determine dose effects for patients prone or averse to LED. Thirty NSCLC patients were randomly selected for analysis. 4-dimensional CT lung images were segmented into the right and left upper and lower lobes (RUL, RLL, LUL, LLL), and the right middle lobe. Dose calculations were performed using volume-modulated arc therapy in the Pinnacle{sup 3} TPS. Most tumours were located in the upper lobes (RUL 53%, LUL 27%) where density was significantly lower (RUL ?80846 HU vs. RLL ?74371 HU; LUL ?808 56 HU vs. LLL ?74670 HU; p<0.001). In general, the prevalence of LED increased with higher beam energy. Using 6MV photons, patients with a RUL tumour experienced moderate (81 %), and mild (19%) levels of LED. At 18MV, LED became more prominent with severe (50%) and moderate (50%) LED exhibited. Dosimetrically, for patients prone to LED, poorer target coverage (i.e. increased R100 by 20%) and improved lung sparing (i.e. reduced V20 by ?46%) was observed. The common location of lung cancers in the upper lobes, coupled with lower lung density, results in the potential occurrence of LED, which may underdose the tumour.

  5. Poster — Thur Eve — 03: Application of the non-negative matrix factorization technique to [{sup 11}C]-DTBZ dynamic PET data for the early detection of Parkinson's disease

    SciTech Connect (OSTI)

    Lee, Dong-Chang; Jans, Hans; McEwan, Sandy; Riauka, Terence; Martin, Wayne; Wieler, Marguerite

    2014-08-15

    In this work, a class of non-negative matrix factorization (NMF) technique known as alternating non-negative least squares, combined with the projected gradient method, is used to analyze twenty-five [{sup 11}C]-DTBZ dynamic PET/CT brain data. For each subject, a two-factor model is assumed and two factors representing the striatum (factor 1) and the non-striatum (factor 2) tissues are extracted using the proposed NMF technique and commercially available factor analysis software “Pixies”. The extracted factor 1 and 2 curves represent the binding site of the radiotracer and describe the uptake and clearance of the radiotracer by soft tissues in the brain, respectively. The proposed NMF technique uses prior information about the dynamic data to obtain sample time-activity curves representing the striatum and the non-striatum tissues. These curves are then used for “warm” starting the optimization. Factor solutions from the two methods are compared graphically and quantitatively. In healthy subjects, radiotracer uptake by factors 1 and 2 are approximately 35–40% and 60–65%, respectively. The solutions are also used to develop a factor-based metric for the detection of early, untreated Parkinson's disease. The metric stratifies healthy subjects from suspected Parkinson's patients (based on the graphical method). The analysis shows that both techniques produce comparable results with similar computational time. The “semi-automatic” approach used by the NMF technique allows clinicians to manually set a starting condition for “warm” starting the optimization in order to facilitate control and efficient interaction with the data.

  6. Sci—Thur PM: Imaging — 04: An iterative triple energy window (TEW) approach to cross talk correction in quantitative small animal Tc99m and In111 SPECT

    SciTech Connect (OSTI)

    Prior, P; Timmins, R; Wells, R G

    2014-08-15

    Dual isotope SPECT allows simultaneous measurement of two different tracers in vivo. With In111 (emission energies of 171keV and 245keV) and Tc99m (140keV), quantification of Tc99m is degraded by cross talk from the In111 photons that scatter and are detected at an energy corresponding to Tc99m. TEW uses counts recorded in two narrow windows surrounding the Tc99m primary window to estimate scatter. Iterative TEW corrects for the bias introduced into the TEW estimate resulting from un-scattered counts detected in the scatter windows. The contamination in the scatter windows is iteratively estimated and subtracted as a fraction of the scatter-corrected primary window counts. The iterative TEW approach was validated with a small-animal SPECT/CT camera using a 2.5mL plastic container holding thoroughly mixed Tc99m/In111 activity fractions of 0.15, 0.28, 0.52, 0.99, 2.47 and 6.90. Dose calibrator measurements were the gold standard. Uncorrected for scatter, the Tc99m activity was over-estimated by as much as 80%. Unmodified TEW underestimated the Tc99m activity by 13%. With iterative TEW corrections applied in projection space, the Tc99m activity was estimated within 5% of truth across all activity fractions above 0.15. This is an improvement over the non-iterative TEW, which could not sufficiently correct for scatter in the 0.15 and 0.28 phantoms.

  7. Poster Thur Eve 24: Commissioning and preliminary measurements using an Attix-style free air ionization chamber for air kerma measurements on the BioMedical Imaging and Therapy beamlines at the Canadian Light Source

    SciTech Connect (OSTI)

    Anderson, D; McEwen, M; Shen, H; Siegbahn, EA; Fallone, BG; Warkentin, B

    2014-08-15

    Synchrotron facilities, including the Canadian Light Source (CLS), provide opportunities for the development of novel imaging and therapy applications. A vital step progressing these applications toward clinical trials is the availability of accurate dosimetry. In this study, a refurbished Attix-style (cylindrical) free air chamber (FAC) is tested and used for preliminary air kerma measurements on the two BioMedical Imaging and Therapy (BMIT) beamlines at the CLS. The FAC consists of a telescoping chamber that relies on a difference measurement of collected charge in expanded and collapsed configurations. At the National Research Council's X-ray facility, a Victoreen Model 480 FAC was benchmarked against two primary standard FACs. The results indicated an absolute accuracy at the 0.5% level for energies between 60 and 150 kVp. A series of measurements were conducted on the small, non-uniform X-ray beams of the 05B1-1 (?8 100 keV) and 05ID-2 (?20 200 keV) beamlines for a variety of energies, filtrations and beam sizes. For the 05B1-1 beam with 1.1 mm of Cu filtration, recombination corrections of less than 5 % could only be achieved for field sizes no greater than 0.5 mm 0.6 mm (corresponding to an air kerma rate of ? 57 Gy/min). Ionic recombination thus presents a significant challenge to obtaining accurate air kerma rate measurements using this FAC in these high intensity beams. Future work includes measurements using a smaller aperture to sample a smaller and thus more uniform beam area, as well as experimental and Monte Carlo-based investigation of correction factors.

  8. Natural Gas Futures Contract 1 (Dollars per Million Btu)

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

    Week Of Mon Tue Wed Thu Fri 1994 Jan-10 to Jan-14 2.194 2.268 1994 Jan-17 to Jan-21 2.360 2.318 2.252 2.250 2.305 1994 Jan-24 to Jan-28 2.470 2.246 2.359 2.417 2.528 1994 Jan-31 to Feb- 4 2.554 2.639 2.585 2.383 2.369 1994 Feb- 7 to Feb-11 2.347 2.411 2.358 2.374 2.356 1994 Feb-14 to Feb-18 2.252 2.253 2.345 2.385 2.418 1994 Feb-21 to Feb-25 2.296 2.232 2.248 2.292 1994 Feb-28 to Mar- 4 2.208 2.180 2.171 2.146 2.188 1994 Mar- 7 to Mar-11 2.167 2.196 2.156 2.116 2.096 1994 Mar-14 to Mar-18 2.050

  9. Highlights

    Gasoline and Diesel Fuel Update (EIA)

    Week Of Mon Tue Wed Thu Fri 1997 Jan- 6 to Jan-10 3.82 3.80 3.61 3.92 1997 Jan-13 to Jan-17 4.00 4.01 4.34 4.71 3.91 1997 Jan-20 to Jan-24 3.26 2.99 3.05 2.96 2.62 1997 Jan-27 to Jan-31 2.98 3.05 2.91 2.86 2.77 1997 Feb- 3 to Feb- 7 2.49 2.59 2.65 2.51 2.39 1997 Feb-10 to Feb-14 2.42 2.34 2.42 2.22 2.12 1997 Feb-17 to Feb-21 1.84 1.95 1.92 1.92 1997 Feb-24 to Feb-28 1.92 1.77 1.81 1.80 1.78 1997 Mar- 3 to Mar- 7 1.80 1.87 1.92 1.82 1.89 1997 Mar-10 to Mar-14 1.95 1.92 1.96 1.98 1.97 1997 Mar-17

  10. Henry Hurwitz, Jr., 1961 | U.S. DOE Office of Science (SC)

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

    Henry Hub Natural Gas Spot Price (Dollars per Million Btu) Henry Hub Natural Gas Spot Price (Dollars per Million Btu) Week Of Mon Tue Wed Thu Fri 1997 Jan- 6 to Jan-10 3.82 3.80 3.61 3.92 1997 Jan-13 to Jan-17 4.00 4.01 4.34 4.71 3.91 1997 Jan-20 to Jan-24 3.26 2.99 3.05 2.96 2.62 1997 Jan-27 to Jan-31 2.98 3.05 2.91 2.86 2.77 1997 Feb- 3 to Feb- 7 2.49 2.59 2.65 2.51 2.39 1997 Feb-10 to Feb-14 2.42 2.34 2.42 2.22 2.12 1997 Feb-17 to Feb-21 1.84 1.95 1.92 1.92 1997 Feb-24 to Feb-28 1.92 1.77

  11. Henry Hub Natural Gas Spot Price (Dollars per Million Btu)

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

    Week Of Mon Tue Wed Thu Fri 1997 Jan- 6 to Jan-10 3.82 3.80 3.61 3.92 1997 Jan-13 to Jan-17 4.00 4.01 4.34 4.71 3.91 1997 Jan-20 to Jan-24 3.26 2.99 3.05 2.96 2.62 1997 Jan-27 to Jan-31 2.98 3.05 2.91 2.86 2.77 1997 Feb- 3 to Feb- 7 2.49 2.59 2.65 2.51 2.39 1997 Feb-10 to Feb-14 2.42 2.34 2.42 2.22 2.12 1997 Feb-17 to Feb-21 1.84 1.95 1.92 1.92 1997 Feb-24 to Feb-28 1.92 1.77 1.81 1.80 1.78 1997 Mar- 3 to Mar- 7 1.80 1.87 1.92 1.82 1.89 1997 Mar-10 to Mar-14 1.95 1.92 1.96 1.98 1.97 1997 Mar-17

  12. Natural Gas Futures Contract 2 (Dollars per Million Btu)

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

    Week Of Mon Tue Wed Thu Fri 1994 Jan-10 to Jan-14 2.130 2.072 2.139 1994 Jan-17 to Jan-21 2.196 2.131 2.115 2.148 2.206 1994 Jan-24 to Jan-28 2.283 2.134 2.209 2.236 2.305 1994 Jan-31 to Feb- 4 2.329 2.388 2.352 2.252 2.198 1994 Feb- 7 to Feb-11 2.207 2.256 2.220 2.231 2.236 1994 Feb-14 to Feb-18 2.180 2.189 2.253 2.240 2.254 1994 Feb-21 to Feb-25 2.220 2.168 2.179 2.221 1994 Feb-28 to Mar- 4 2.165 2.146 2.139 2.126 2.144 1994 Mar- 7 to Mar-11 2.149 2.168 2.160 2.144 2.132 1994 Mar-14 to Mar-18

  13. Natural Gas Futures Contract 3 (Dollars per Million Btu)

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

    Week Of Mon Tue Wed Thu Fri 1994 Jan-17 to Jan-21 2.019 2.043 2.103 1994 Jan-24 to Jan-28 2.162 2.071 2.119 2.128 2.185 1994 Jan-31 to Feb- 4 2.217 2.258 2.227 2.127 2.118 1994 Feb- 7 to Feb-11 2.137 2.175 2.162 2.160 2.165 1994 Feb-14 to Feb-18 2.140 2.145 2.205 2.190 2.190 1994 Feb-21 to Feb-25 2.180 2.140 2.148 2.186 1994 Feb-28 to Mar- 4 2.148 2.134 2.122 2.110 2.124 1994 Mar- 7 to Mar-11 2.129 2.148 2.143 2.135 2.125 1994 Mar-14 to Mar-18 2.111 2.137 2.177 2.152 2.130 1994 Mar-21 to Mar-25

  14. Natural Gas Futures Contract 4 (Dollars per Million Btu)

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

    Week Of Mon Tue Wed Thu Fri 1993 Dec-20 to Dec-24 1.894 1.830 1.859 1.895 1993 Dec-27 to Dec-31 1.965 1.965 1.943 1.901 1994 Jan- 3 to Jan- 7 1.883 1.896 1.962 1.955 1.980 1994 Jan-10 to Jan-14 1.972 2.005 2.008 1.966 2.010 1994 Jan-17 to Jan-21 2.006 1.991 1.982 2.000 2.053 1994 Jan-24 to Jan-28 2.095 2.044 2.087 2.088 2.130 1994 Jan-31 to Feb- 4 2.157 2.185 2.157 2.075 2.095 1994 Feb- 7 to Feb-11 2.115 2.145 2.142 2.135 2.140 1994 Feb-14 to Feb-18 2.128 2.125 2.175 2.160 2.155 1994 Feb-21 to

  15. High School Co-op Program Recruitment Calendar

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

    Salazar Wed, Feb 18 Mesa Vista High School Mark Richmond TBD New Mexico School for the Arts Acacia McCombs Wed, Mar 4 Pecos High School Emily Ortiz Mon, Mar 2 Peasco High School...

  16. 2009 - 04 | Jefferson Lab

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

    Theory Group Wed, 2009-04-29 15:00 JLab: LQCD clusters & most batch farm nodes returning to service Wed, ... of Energy Promotes Special Earth Week Feature on ...

  17. 2008 - 04 | Jefferson Lab

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

    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...

  18. 1997 | Jefferson Lab

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

    Oct 1997 Wed, 1997-10-29 12:00 SURA Rewards Inventors Mar 1997 Wed, 1997-03-26 12:00 JLab Awarded Vice President's Hammer Award

  19. 2005 - 05 | Jefferson Lab

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

    Professor, Students Help Catch Neutrinos (Daily Press) Wed, 05042005 - 11:00pm RADM Cohen Remarks at Navy League Exposition (Sea Power Magazine) Wed, 05042005 - 11:00pm...

  20. 1999 - 12 | Jefferson Lab

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

    2 Dec 1999 Wed, 1999-12-01 00:00 HAPPEX Probes 'sea' of Nucleon Strangeness (CERN Courier) Wed, 1999-12-01 00:00 Novel X-rays Detected at Jefferson (CERN Courier

  1. 2012 - 09 | Jefferson Lab

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

    9 Sep 2012 Wed, 2012-09-26 15:00 JLab Computing: Microsoft Windows Patch Scheduled for Tonight Wed, 2012-09-26 15:00 Annual United Way Campaign Wed, 2012-09-26 15:00 Machine Shop Work Requests Wed, 2012-09-26 15:00 2012 Vacation Donation Open Enrollment Wed, 2012-09-19 15:00 Don't Use Internet Explorer Unless Necessary: Malware Found Wed, 2012-09-19 15:00 Change in JLab Pay Dates Wed, 2012-09-19 15:00 Performance Appraisal Process Begins 9/25/2012 Wed, 2012-09-12 15:00 Occ. Med. Offers Staff Flu

  2. 2014 - 09 | Jefferson Lab

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

    9 Sep 2014 Wed, 2014-09-24 18:55 Jefferson Lab Weekly Briefs September 24, 2014 Wed, 2014-09-10 18:02 Jefferson Lab Weekly Briefs September 10

  3. 2014 - 04 | Jefferson Lab

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

    4 Apr 2014 Wed, 04/23/2014 - 03:30pm The name of the game

  4. 2016 - 03 | Jefferson Lab

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

    3 Mar 2016 Wed, 2016-03-02 09:18 NMSU Undergrad Receives JSA Research Assistantship

  5. 1997 - 03 | Jefferson Lab

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

    3 Mar 1997 Wed, 1997-03-26 12:00 JLab Awarded Vice President's Hammer Award

  6. 2004 - 10 | Jefferson Lab

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

    0 Oct 2004 Wed, 2004-10-27 14:00 Jefferson Lab Announces Fall Science Series Event Nov. 23

  7. 2008 - 10 | Jefferson Lab

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

    0 Oct 2008 Wed, 2008-10-08 14:35 ILC Electron Source Gets Help from JLab

  8. 2008 - 12 | Jefferson Lab

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

    2 Dec 2008 Wed, 2008-12-03 14:34 Neutrons and Quarks Share Dual Nature

  9. 2009 - 07 | Jefferson Lab

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

    7 Jul 2009 Wed, 2009-07-01 13:11 Fifteen Years of Beam on Target

  10. 2011 - 05 | Jefferson Lab

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

    5 May 2011 Wed, 2011-05-11 10:31 Two Jefferson Lab Scientists Win Prestigious Early Career Awards

  11. 2012 - 04 | Jefferson Lab

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

    4 Apr 2012 Wed, 04/04/2012 - 12:00am Physicists and Technologists in Washington

  12. 2013 - 09 | Jefferson Lab

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

    9 Sep 2013 Wed, 09/25/2013 - 09:27am Technology and Engineering Development Facility

  13. 2001 - 08 | Jefferson Lab

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

    8 Aug 2001 Wed, 2001-08-01 15:00 OnTarget July and August

  14. 2004 - 12 | Jefferson Lab

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

    2 Dec 2004 Wed, 2004-12-01 14:00 OnTarget November and December

  15. 2005 - 06 | Jefferson Lab

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

    6 Jun 2005 Wed, 2005-06-01 15:00 OnTarget May and June

  16. 2005 - 11 | Jefferson Lab

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

    1 Nov 2005 Wed, 2005-11-23 00:00 Jefferson Lab budget at risk for cuts

  17. 2006 - 03 | Jefferson Lab

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

    3 Mar 2006 Wed, 2006-03-22 14:00 JLab Newsletter: e-OnTarget - March

  18. 2006 - 07 | Jefferson Lab

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

    7 Jul 2006 Wed, 2006-07-12 15:00 JLab Newsletter: e-OnTarget July

  19. 2016 - 06 | Jefferson Lab

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

    6 Jun 2016 Wed, 2016-06-29 21:11 Jefferson Lab Weekly Briefs - June 29, 2016 Wed, 2016-06-22 17:10 Jefferson Lab Weekly Briefs June 22, 2016 Wed, 2016-06-15 17:15 Jefferson Lab Weekly Briefs June 15, 2016 Wed, 2016-06-08 15:31 Jefferson Lab Weekly Briefs June 8, 2016 Thu, 2016-06-02 12:12 Jefferson Lab Weekly Briefs June 1

  20. 2001 - 03 | Jefferson Lab

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

    3 Mar 2001 Wed, 2001-03-21 13:00 Six NN High School Students Win Jefferson Lab Externships Wed, 2001-03-21 13:00 Jones O. &amp; Associates of Hampton wins Jefferson Lab's annual Small Disadvantaged Business Subcontractor award Wed, 2001-03-14 13:00 Jefferson Lab Seeks Applicants for Science Teacher Enrichment Program

  1. 2011 - 09 | Jefferson Lab

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

    09 Sep 2011 Sun, 2011-09-25 15:00 Jefferson Lab Weekly Briefs September 28, 2011 Wed, 2011-09-21 15:00 Jefferson Lab Weekly Briefs September 21, 2011 Wed, 2011-09-14 15:00 Jefferson Lab Weekly Briefs September 14, 2011 Wed, 2011-09-07 15:00 Jefferson Lab Weekly Briefs September 7

  2. 2011 - 12 | Jefferson Lab

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

    2 Dec 2011 Wed, 2011-12-21 14:00 Jefferson Lab Weekly Briefs December 21, 2011 Wed, 2011-12-14 14:00 Jefferson Lab Weekly Briefs December 14, 2011 Wed, 2011-12-07 14:00 Jefferson Lab Weekly Briefs December 7

  3. 2012 - 07 | Jefferson Lab

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

    7 Jul 2012 Wed, 2012-07-25 15:00 Jefferson Lab Weekly Briefs July 25, 2012 Wed, 2012-07-18 15:00 Jefferson Lab Weekly Briefs July 18, 2012 Wed, 2012-07-11 15:00 Jefferson Lab Weekly Briefs July 1

  4. 2012 - 09 | Jefferson Lab

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    9 Sep 2012 Wed, 2012-09-26 15:00 Jefferson Lab Weekly Briefs September 26, 2012 Wed, 2012-09-19 15:00 Jefferson Lab Weekly Briefs September 19, 2012 Wed, 2012-09-12 15:00 Jefferson Lab Weekly Briefs September 12

  5. 2012 - 11 | Jefferson Lab

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

    1 Nov 2012 Wed, 2012-11-21 14:00 Jefferson Lab Weekly Briefs November 21, 2012 Wed, 2012-11-14 14:00 Jefferson Lab Weekly Briefs November 14, 2012 Wed, 2012-11-07 14:00 Jefferson Lab Weekly Briefs November 7

  6. 2012 - 12 | Jefferson Lab

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

    2 Dec 2012 Wed, 2012-12-19 14:00 Jefferson Lab Weekly Briefs December 19, 2012 Wed, 2012-12-12 12:00 Jefferson Lab Weekly Briefs December 12, 2012 Wed, 2012-12-05 14:00 Jefferson Lab Weekly Briefs December 5

  7. 2013 - 09 | Jefferson Lab

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

    9 Sep 2013 Wed, 2013-09-25 13:37 Jefferson Lab Weekly Briefs September 25, 2013 Wed, 2013-09-18 14:40 Jefferson Lab Weekly Briefs September 18, 2013 Wed, 2013-09-11 12:30 Jefferson Lab Weekly Briefs September 11

  8. 2013 - 12 | Jefferson Lab

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    2 Dec 2013 Wed, 2013-12-18 15:04 Jefferson Lab Weekly Briefs December 18, 2013 Wed, 2013-12-11 14:43 Jefferson Lab Weekly Briefs December 11, 2013 Wed, 2013-12-04 13:07 Jefferson Lab Weekly Briefs December 4

  9. 2014 - 06 | Jefferson Lab

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

    6 Jun 2014 Wed, 2014-06-25 17:23 Jefferson Lab Weekly Briefs June 25, 2014 Wed, 2014-06-11 18:12 Jefferson Lab Weekly Briefs June 11, 2014 Wed, 2014-06-04 19:13 Jefferson Lab Weekly Briefs June 4

  10. 2014 - 08 | Jefferson Lab

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    8 Aug 2014 Wed, 2014-08-20 18:43 Jefferson Lab Weekly Briefs August 20, 2014 Wed, 2014-08-13 18:59 Jefferson Lab Weekly Briefs August 13, 2014 Wed, 2014-08-06 19:11 Jefferson Lab Weekly Briefs August 6

  11. 2014 - 12 | Jefferson Lab

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

    2 Dec 2014 Wed, 2014-12-17 16:26 Jefferson Lab Weekly Briefs December 17, 2014 Wed, 2014-12-10 17:59 Jefferson Lab Weekly Briefs December 10, 2014 Wed, 2014-12-03 17:13 Jefferson Lab Weekly Briefs December 3

  12. 2015 - 05 | Jefferson Lab

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

    5 May 2015 Wed, 2015-05-20 15:37 Jefferson Lab Weekly Briefs May 20, 2015 Wed, 2015-05-13 11:35 Jefferson Lab Weekly Briefs May 13, 2015 Wed, 2015-05-06 13:21 Jefferson Lab Weekly Briefs May 6

  13. 2015 - 09 | Jefferson Lab

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

    9 Sep 2015 Wed, 2015-09-23 17:31 Jefferson Lab Weekly Briefs September 23, 2015 Wed, 2015-09-16 17:02 Jefferson Lab Weekly Briefs September 16, 2015 Wed, 2015-09-02 16:58 Jefferson Lab Weekly Briefs September 2

  14. 2015 - 12 | Jefferson Lab

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

    2 Dec 2015 Wed, 2015-12-23 08:12 Jefferson Lab Weekly Briefs December 23, 2015 Wed, 2015-12-16 14:44 Jefferson Lab Weekly Briefs December 16, 2015 Wed, 2015-12-09 17:20 Jefferson Lab Weekly Briefs December 10

  15. 2016 - 02 | Jefferson Lab

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

    2 Feb 2016 Wed, 2016-02-24 13:33 Jefferson Lab Weekly Briefs February 24, 2016 Wed, 2016-02-17 11:49 Jefferson Lab Weekly Briefs February 17, 2016 Thu, 2016-02-11 14:11 Jefferson Lab Weekly Briefs February 11, 2016 Wed, 2016-02-03 15:49 Jefferson Lab Weekly Briefs February 3

  16. 2003 - 04 | Jefferson Lab

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

    4 Apr 2003 Wed, 2003-04-23 14:00 Visiting senior scientist at Jefferson Lab leads the way on cavity redesign Wed, 2003-04-16 14:00 James A. Turi selected Site Manager for Jefferson Lab Wed, 2003-04-02 15:15 Bernhard Mecking steps down as Hall B leader at Jefferson Lab Wed, 2003-04-02 13:00 Jefferson Lab holds summer Physics Fests for youth Wed, 2003-04-02 13:00 Jefferson Lab's Education web site hits new high-usage record during 2003 SOL season

  17. 2015 | Jefferson Lab

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

    Dec 2015 Wed, 2015-12-23 08:12 Jefferson Lab Weekly Briefs December 23, 2015 Wed, 2015-12-16 14:44 Jefferson Lab Weekly Briefs December 16, 2015 Wed, 2015-12-09 17:20 Jefferson Lab Weekly Briefs December 10, 2015 Nov 2015 Wed, 2015-11-25 11:54 Jefferson Lab Weekly Briefs November 25, 2015 Wed, 2015-11-18 17:22 Jefferson Lab Weekly Briefs November 18, 2015 Thu, 2015-11-12 09:40 Jefferson Lab Weekly Briefs November 12, 2015 Thu, 2015-11-05 09:08 Jefferson Lab Weekly Briefs - November 5, 2015 Oct

  18. Brown - leaves

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

    Oct 14 th * Award decision by Nov 6 th * Presentation of New Program Thurs, Nov 13 th . * Utility opt-in Nov 7 - Dec 5 th * New program launch - April 1, 2015 12 B O N N E V I L L...

  19. Sci—Fri PM: Dosimetry — 03: Delta4 diode absolute dose response for large and small target volume IMRT QA

    SciTech Connect (OSTI)

    Simard, D; Thakur, V

    2014-08-15

    The goal of this project was to quantify the over-response/under-response of the Delta4 diodes for Helical Tomotherapy plans on extreme target volume sizes. A custom Delta4 phantom quarter with a hole to insert an ionisation chamber (IC) close to the center of the phantom have been used to acquire simultaneous IC and diodes absolute dose measurements. Eight plans for different target volumes were created from 20cm to 1cm diameter. Diodes dose measurements in the target were compared with IC measurement, to quantify absolute dose accuracy. IC measurements show a good agreement with planned dose (±2%). Diode measurements demonstrate a good agreement with IC for regular target size of 5 and 10cm (0 to 1%). For larger targets, an over-response is observed for FW 25mm and 10mm (2 to 3%). for small target of 1cm diameter, a major under-response is observed for FW 25mm and 10mm (−8 and −36%). The over-response could to be due to the extra amount of scattered radiation and the opposite for under-response. Although this scatter hypothesis still has to be proven, early testing demonstrates an over-response of 40%/20% of the central diodes compare to IC when an open helical rotational beam is delivered 75mm/25mm away from the center of the phantom. These results are in agreement with the real patient Delta4 DQA results at our center.

  20. Sci—Fri AM: Mountain — 04: Label-free Raman spectroscopy of single tumour cells detects early radiation-induced glycogen synthesis associated with increased radiation resistance

    SciTech Connect (OSTI)

    Matthews, Q; Lum, JJ; Isabelle, M; Harder, S; Jirasek, A; Brolo, AG

    2014-08-15

    Purpose: To use label-free Raman spectroscopy (RS) for early treatment monitoring of tumour cell radioresistance. Methods: Three human tumour cell lines, two radioresistant (H460, SF{sub 2} = 0.57 and MCF7, SF{sub 2} = 0.70) and one radiosensitive (LNCaP, SF{sub 2} = 0.36), were irradiated with single fractions of 2, 4, 6, 8 or 10 Gy. In additional experiments, H460 and MCF7 cells were irradiated under co-treatment with the anti-diabetic drug metformin, a known radiosensitizing agent. Treated and control cultures were analyzed with RS daily for 3 days post-treatment. Single-cell Raman spectra were acquired from 20 live cells per sample, and experiments were repeated in triplicate. The combined data sets were analyzed with principal component analysis using standard algorithms. Cells from each culture were also subjected to standard assays for viability, proliferation, cell cycle, and radiation clonogenic survival. Results: The radioresistant cells (H460, MCF7) exhibited a RS molecular radiation response signature, detectable as early as 1 day post-treatment, of which radiation-induced glycogen synthesis is a significant contributor. The radiosensitive cells (LNCaP) exhibited negligible glycogen synthesis. Co-treatment with metformin in MCF7 cells blocked glycogen synthesis, reduced viability and proliferation, and increased radiosensitivity. Conversely, metformin co-treatment in H460 cells did not produce these same effects; importantly, both radiation-induced synthesis of glycogen and radiosensitivity were unaffected. Conclusions: Label-free RS can detect early glycogen synthesis post-irradiation, a previously undocumented metabolic mechanism associated with tumour cell radioresistance that can be targeted to increase radiosensitivity. RS monitoring of intratumoral glycogen may provide new opportunities for personalized combined modality radiotherapy treatments.

  1. SciFri AM: Mountain 01: Validation of a new formulism and the related correction factors on output factor determination for small photon fields

    SciTech Connect (OSTI)

    Wang, Yizhen; Younge, Kelly; Nielsen, Michelle; Mutanga, Theodore; Cui, Congwu; Das, Indra J.

    2014-08-15

    Small field dosimetry measurements including output factors are difficult due to lack of charged-particle equilibrium, occlusion of the radiation source, the finite size of detectors, and non-water equivalence of detector components. With available detectors significant variations could be measured that will lead to incorrect delivered dose to patients. IAEA/AAPM have provided a framework and formulation to correct the detector response in small photon fields. Monte Carlo derived correction factors for some commonly used small field detectors are now available, however validation has not been performed prior to this study. An Exradin A16 chamber, EDGE detector and SFD detector were used to perform the output factor measurement for a series of conical fields (530mm) on a Varian iX linear accelerator. Discrepancies up to 20%, 10% and 6% were observed for 5, 7.5 and 10 mm cones between the initial output factors measured by the EDGE detector and the A16 ion chamber, while the discrepancies for the conical fields larger than 10 mm were less than 4%. After the application of the correction, the output factors agree well with each other to within 1%. Caution is needed when determining the output factors for small photon fields, especially for fields 10 mm in diameter or smaller. More than one type of detector should be used, each with proper corrections applied to the measurement results. It is concluded that with the application of correction factors to appropriately chosen detectors, output can be measured accurately for small fields.

  2. SciFri PM: Topics 06: The influence of regional dose sensitivity on salivary loss and recovery in the parotid gland

    SciTech Connect (OSTI)

    Clark, H; Thomas, S; Moiseenko, V; Hovan, A; Wu, J

    2014-08-15

    Purpose: The Quantitative Analyses of Normal Tissue Effects in the Clinic (QUANTEC 2010) survey of radiation dose-volume effects on salivary gland function has called for improved understanding of intragland dose sensitivity and the effectiveness of partial sparing in salivary glands. Regional dose susceptibility of sagittally- and coronally-sub-segmented parotid gland has been studied. Specifically, we examine whether individual consideration of sub-segments leads to improved prediction of xerostomia compared with whole parotid mean dose. Methods: Data from 102 patients treated for head-and-neck cancers at the BC Cancer Agency were used in this study. Whole mouth stimulated saliva was collected before (baseline), three months, and one year after cessation of radiotherapy. Organ volumes were contoured using treatment planning CT images and sub-segmented into regional portions. Both non-parametric (local regression) and parametric (mean dose exponential fitting) methods were employed. A bootstrap technique was used for reliability estimation and cross-comparison. Results: Salivary loss is described well using non-parametric and mean dose models. Parametric fits suggest a significant distinction in dose response between medial-lateral and anterior-posterior aspects of the parotid (p<0.01). Least-squares and least-median squares estimates differ significantly (p<0.00001), indicating fits may be skewed by noise or outliers. Salivary recovery exhibits a weakly arched dose response: the highest recovery is seen at intermediate doses. Conclusions: Salivary function loss is strongly dose dependent. In contrast no useful dose dependence was observed for function recovery. Regional dose dependence was observed, but may have resulted from a bias in dose distributions.

  3. SciFri PM: Topics 02: Evaluation of Dosimetric Variations in Partial Breast Seed Implant (PBSI) due to Patient Arm Position (Up vs. Down)

    SciTech Connect (OSTI)

    Watt, E; Long, K; Husain, S; Meyer, T

    2014-08-15

    The planning for PBSI is done with the patient's ipsilateral arm raised, however, anatomical changes and variations are unavoidable as the patient resumes her daily activities, potentially resulting in significant deviations in implant geometry from the treatment plan. This study aims to quantify the impact of the ipsilateral arm position on the geometry and dosimetry of the implant at eight weeks, evaluated on post-plans using the MIM Symphony software (MIM Software, Cleveland, OH). The average dose metrics for the three patients treated at the TBCC thus far using rigid fusion and contour transfer for the arms up position were 76% for the CTV V100, 61% for the PTV V100, and 37% for the PTV V200; and for the arms down position 81% for the CTV V100, 64% for the PTV V100, and 42% for the PTV V200. Qualitative analysis of the post-implant CT for one of the three patients showed poor agreement between the seroma contour transferred from the pre-implant CT and the seroma visible on the post-implant CT. To obtain a clinically accurate plan for that patient, contour modifications were used, yielding improved dose metric averages for the arms-up position for all three patients of 87% for the CTV V100, 68% for the PTV V100, and 39% for the PTV V200. Overall, the data available shows that dosimetric parameters increase with the patient's arm down, both in terms of coverage and in terms of the hot spot, and accrual of more patients may confirm this in a larger population.

  4. SciFri AM: Mountain 05: Unified Optimization and Delivery of Intensity-modulated Radiation Therapy and Volume-modulated Arc Therapy

    SciTech Connect (OSTI)

    Chen, J; Hoover, D; MacFarlane, M; Wong, E

    2014-08-15

    Purpose: To study the feasibility of a unified intensity-modulated arc therapy (UIMAT) that combines IMRT and VMAT optimization and delivery in order to produce efficient and superior radiation treatment plans. Methods: Inverse planning for UIMAT was prototyped on the Pinnacle treatment planning system (Philips Medical Systems). UIMAT integrates IMRT and VMAT delivery in the same arc where IMRT was delivered with gantry speed close to zero. Optimal gantry angles for the IMRT phases were selected automatically by the inverse optimization algorithm. Optimization of the VMAT phases and IMRT phases were done simultaneously using Pinnacle's direct machine parameter optimization algorithm. Five treatment plans each for prostate, head and neck, and lung were generated using our unified technique and compared with clinical VMAT or IMRT plans. Delivery verification was performed on an ArcCheck phantom (Sun Nuclear) and delivered in clinical mode on a Varian TrueBeam linear accelerator. Results: In this prototype implementation, compared to the VMAT or IMRT plans, with the plans normalized to the same dose coverage to the planning target volumes, the UIMAT plans produced improved OAR sparing for head and neck cases, while for lung and prostate cases, the dosimetric improvements for OARs were not as significant. In this proof-of-concept work, we demonstrated that a novel radiation therapy delivery technique combining VMAT and IMRT delivery in the same arc is feasible. Initial results showed UIMAT has the potential to be superior to either standard IMRT or VMAT.

  5. Sci—Fri PM: Topics — 07: Monte Carlo Simulation of Primary Dose and PET Isotope Production for the TRIUMF Proton Therapy Facility

    SciTech Connect (OSTI)

    Lindsay, C; Jirasek, A; Blackmore, E; Hoehr, C; Schaffer, P; Trinczek, M; Sossi, V

    2014-08-15

    Uveal melanoma is a rare and deadly tumour of the eye with primary metastases in the liver resulting in an 8% 2-year survival rate upon detection. Large growths, or those in close proximity to the optic nerve, pose a particular challenge to the commonly employed eye-sparing technique of eye-plaque brachytherapy. In these cases external beam charged particle therapy offers improved odds in avoiding catastrophic side effects such as neuropathy or blindness. Since 1995, the British Columbia Cancer Agency in partnership with the TRIUMF national laboratory have offered proton therapy in the treatment of difficult ocular tumors. Having seen 175 patients, yielding 80% globe preservation and 82% metastasis free survival as of 2010, this modality has proven to be highly effective. Despite this success, there have been few studies into the use of the world's largest cyclotron in patient care. Here we describe first efforts of modeling the TRIUMF dose delivery system using the FLUKA Monte Carlo package. Details on geometry, estimating beam parameters, measurement of primary dose and simulation of PET isotope production are discussed. Proton depth dose in both modulated and pristine beams is successfully simulated to sub-millimeter precision in range (within limits of measurement) and 2% agreement to measurement within in a treatment volume. With the goal of using PET signals for in vivo dosimetry (alignment), a first look at PET isotope depth distribution is presented — comparing favourably to a naive method of approximating simulated PET slice activity in a Lucite phantom.

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