Vincent Sulkosky discussed the target lab status:

•  Work completed:
•  Studied NMR-EPR discrepancy discovered in Feb. 2002
•  Water signal height did not match gain at 200x, problem fixed
•  Tested cells (Duke, Patrick, Exodus)
•  Transverse tests on Exodus
•  Density corrected for etalon effect
•  EPR fiber optics tests (Long. and transverse)
•  Target system designs:  pick-up coils and  epr coupler mount
• Future work:  test new cells and designs and move the target system to Hall A (July)

 

•  EPR spectrum improvement
•  EPR and Field Feedback
•  EPR analysis:  polarization diffusion to obtain P_t and error on EPR
•   Cell results from EPR:
•  Patrick ( 24.7 +/- 1.3)%
•  Duke (46.0 +/- 0.4)%
•  Plans:
•  Finish polarization optimization
•  Optimize FFB and EPR systems
•  Polarization monitoring with EPR
•  Study of polarization loss due to EPR RF field
•  Test in transverse and longitudinal

 
    Todd Averett gave an update of the W&M target system:

•  Ready to fill cells at anytime (standard or c1720)
•  Window explosion tests
•  Explosions left marks and scratches but not ruptures
•  Tested with Al piece:  left dents but n penetrations
•  REU student will help characterize cells at JLab
•  Use W&M system to test cells (Lifetime, etc.)

    Jaideep Singh discussed the target lab status at UVa:

•  Cell fill and characterization:  Pressure broadening, wall thickness,
         and cell volumes
•  Goals for ~ Mid-July:  full polarization measurements
         and EPR polarimetry
 

    Zein-Eddine Meziani gave an update of cell development at Temple:

•  Cell production system ready for producing cells
•  Temple glass blower should talk to either Willie or Mike for guidance
•  Cell Monitoring lab to test cells:  NMR system ready and  EPR setup underway
 
 

•  Spare parts:
•  Wolfgang will provide some electronics from UK
•  Design group needs to be pushed faster
•  Manpower:
•  Graduate students (Patricia Solvignon, Vincent Sulkosky, Jing Yuan)
•  Jaideep Singh will mostly work at UVa and take some shifts.  May do some analysis
•  1 Chinese student will come in July for ~ 6 months
•  Xiaochao agreed to help work on the optics commissioning (1 month)
• Optics commissioning (Doug Higinbotham, Patricia S., Bryan Moffit)
•  Piotr Zolnierczuk, Seonho Choi and Xiaodong Jiang will help during the experiment
•  Kathy McCormick (?)
•  Issues:
•  Go to single arm experiment using R-arm at 6 degrees
•  R-arm momentum changes slow and can only go to 3 GeV
•  At higher energies (4 and 5 GeV) cannot reach QE,
         delta resonance, or second resonance
•  If second septum comes in early september, then we can still do the
         installation and run in October

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