Group templates for Jefferson Lab Tech Notes and Powerpoint presentation are availabe here.

 

The EGG Historical Timeline Taken From M. Poelker OPS Review Power Point Slide Presentation (January 2002) 

Troubleshooting procedures

University of Illnois, Nuclear Physics Lab Technical Notes

Helpful presentation slides.

 

 

Publications & Presentations

    2008   

  • Polarized Electron Sources @ JLab, J. Grames, 2008 Summer Detector and Computer Lecture Series, July 15, 2008 (pdf)
  • 2008 DOE Science and Technology Review, J. Grames, July 1, 2008 (pdf)
  • Polarized Electron Sources @ JLab, J. Grames, 2008 Hampton University Graduate Studies, June 6, 2008 (pdf)
  • CEBAF Load-Lock Polarized Electron Photogun, J. Grames & M. Poelker, 4th Electron-Ion Collider Workshop, Hampton University, May 19-23, 2008 (pdf)
  • Electron Sources for Accelerators, C.Hernandez-Garcia, P.G. O'Shea and M.L. Stutzman, Physics Today, February 2008, p. 44-49 (pdf).
  • High Voltage application note, J. Hansknecht (pdf)

2007


  • A Road Map to Extreme High Vacuum, P. Adderley & G. Myneni, IVS 2007 (pdf)
  • High Intensity Polarized Electron Sources, M. Poelker et al., PST07 BNL (pdf)
  • A Biased Anode to Suprress Ion-Back Bombardment in a DC HV Photoelectron Gun, J. Grames, PST07 BNL, (pdf)
  • LLGUN2 Biased Anode Commissioning presentation, J. Grames, B-Team Meeting, October 30, 2007 (PPT)
  • DC photogun vacuum characterization through photocathode lifetime studies, M.L.Stutzman et al., IVC17 Stockholm July 2007 (pdf), proceedings. 
  • Status of High Polarization DC High Voltage Gallium Arsenide Photoelectron Guns, M. Poelker et al., Proceedings to PAC'07 (PDF).
  • Lifetime Measurements of High Polarization Strained Superlattice Gallium Arsenide at Beam Current > 1 mA Using a New 100 kV Load Lock Photogun, J. Grames et al., Proceedings to PAC'07 (PDF).
  • JLab Polarized Source (PPT) R. Suleiman, Happex Collaboration Meeting, May 18, 2007
  • Mini beam fest CEBAF source report 17 April 2007 (PPT) M.L. Stutzman.
  • Characterization of the CEBAF 100 kV DC GaAs photoelectron gun vacuum system (PDF) M.L. Stutzman, NIMA 574 (2007) 213.
  • New Load Lock Gun & 1 mA from Superlattice (PPT), Report to OPS Scheduling Meeting, JLab, Feb. 28, 2007.
  • Measurements of Photocathode Operational Lifetime at Beam Currents up to 10 mA using an Improved DC HV GaAs Photogun (PPT), J. Grames et al., Collider-Accelerator Department Seminar, Brookhaven National Lab, Feb. 9, 2007
  • Mott polarization for operators (PPT) M. Stutzman (PPT) J. Grames. 
  • Development of a high average current polarized electron source with long cathode operational lifetime, C. K. Sinclair, P. A. Adderley, B. M. Dunham, J. C. Hansknecht, P. Hartmann, M. Poelker, J. S. Price, P. M. Rutt, W. J. Schneider, and M. Steigerwald (Phys. Rev. ST Accel. Beams 10, 023501)

2006


  • Highlights of the Spin'06 Symposium & Photocathode Lifetime at High Average Current (PPT), J. Grames,  CASA Seminar, JLab, December 7, 2006
  • Extreme High Vacuum: The Need, Production and Measurement (PPT, PDF), M.L. Stutzman, P. A. Adderley, M. Poelker, AVS 2006, San Francisco 14 November 2006
  • Polarized Electron Beams for the JLab Physics Program (PPT), J. Grames, SESAPS 2006, Williamsburg, VA
  • SPIN 2006 Session9B Polarized Ion and Electron Sources Yukawa Institute, Kyoto University, Japan, Oct.2 – Oct.6
  • Further Measurements of Photocathode Operational Lifetime at Beam Intensity >1mA using the CEBAF 100 kV DC GaAs Photogun (Talk PPT, Proceedings PDF), J. Grames et al., Spin Symposium, Kyoto, Japan 2006.
  • Status of the Jefferson Lab Polarized Electron Beam Program (PPT-Poster), J. Grames et al., Spin Symposium, Kyoto, Japan 2006.
  • TAPS presentation: CEBAF gun and injector (PPT), M.L. Stutzman July 25 2006.
  • Polarized Electron Beam at CEBAF  (PPT), M. Poelker, DOE Science & Technology Review, June 13, 2006.
  • Synchronous photoinjection using a frequency-doubled gain-switched fiber-coupled seed laser and ErYb-doped amplifier, J. Hansknecht and M. Poelker (Phys. Rev. ST-AB 9, 063501)
  • G0 Collaboration Meeting 362 MeV Update (PPT), J. Grames, College of William & Mary, June 5, 2006
  • Fiber Laser Beat Frequency Presentation at 8am Meeting (PPT), J. Grames
  • Probing Hadron Structure at CEBAF Using Polarized Electron Scattering (PPT), M. Poelker, APS Meeting, Dallas, TX, April 2006
  • Beam Studies report on Pulsed Mode, 30 Hz Devices & 30 Hz BPM's (PPT), J. Grames, March 20, 2006
  • Polarized Electron Sources - Special Topics Seminar at U. Va. (PPT), J. Grames, March 15, 2006
  • Wien Angle at 90 degrees for G0 (PPT), J. Grames, January 24, 2006
  • Operator Vacuum Talk (PPT),M. Stutzman, P. Adderley, January 17, 2006
  • G0 Collaboration Meeting Project Update (PPT), J. Grames, January 12, 2006
  • G0 update to BTeam Meeting, J. Grames (WORD), J. Grames, January 10, 2006
  • Helicity Magnet & PZT Booster update to BTeam Meeting  (PPT), J. Grames, January 10, 2006
  • Hall C Workshop G0 Project Update (PPT), J. Grames, January 5, 2006





2005

  • Effects of atomic hydrogen and deuterium exposure on high polarization GaAs photocathodes (PDF), M. Baylac, PRSTAB publication.
  • Field Emission from Cesiated Titanium & Stainless Steel Electrodes (PPT), K. Law, EGG group meeting, December 15, 2005
  • Helicity Magnet Development update to BTeam Meeting (PPT), J. Grames, December 12, 2005
  • Operation of CEBAF photoguns at average beam current >1mA (PPT), P. Poelker, PST'05, November, 2005
  • Helicity Magnet Usage for Optics Measurements (PPT), BTeam Presentation, September 27, 2005.
  • A Proposal for an Improved Laser System for the CEBAF Photoinjector (PPT), J. Hansknecht, Accelerator Seminar, September 6, 2005.
  • Polarized Source Advances (PPT), M. Poelker & J. Grames, DOE Science & Technology Review, August 31, 2005.
  • Solvent Free Anodization Tech note (DOC, PDF), M. Stutzman, June 2005.
  • Polarized Photoguns and Prospects for Higher Current (PPT), M. Poelker, ERL05 Workshop, March 19-22, 2005.
  • Polarized Source Issues for Qweak (PPT), M. Poelker (given by J. Grames), April 8, 2005.
  • CEBAF Photoinjector, report to HAPPEx Collaboration Meeting (PPT), M. Poelker, February 18, 2005.
  • Gun3 SVT4722#2 summary report on EGG group meeting (PPT), J. Grames, January 13, 2005.
  • Superlattice Cathode - 8AM Meeting Presentation (PPT), J. Grames, January 13, 2005

2004

2003

2002

2001

2000

 

1999

1998

1997

1996

1995

1994

1993

 

1992

1989-1991

Other

 

 

 

 

 

Site maintenance performed on November 4, 2004 by grames@jlab.org