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User name sawatzky
Log entry time 04:11:18 on May 12, 2006
Entry number 173758
keyword=Shift/Run summary (00:00 - 04:00)
Shift Crew: 00:00 -- 04:00 B. Sawatzky, B.
Craver, H. Yao
Comments:
Facility Development time used to test v767 TDCs with BigBite drift
chambers under beam conditions.
Events:
00:30 Controlled Access to move front chamber to VME ROC20 (v767
TDCs)
01:30 Requested Beam (1 uA on optics target for raster, BeO
postion check)
01:47 Target change to Hydrogen cell (136 psi) - request 1 uA
02:30 Request 2 uA on Hydrogen cell (136 psi)
02:50 Request 4 uA on Hydrogen cell (136 psi)
03:30 Request 6 uA on Hydrogen cell (136 psi)
04:00 Request 1 uA on Carbon Foils
04:10 Hand off to Eugene for CSR/Moeller tests
Run Summary:
Beam Energy: 2.075 GeV (Set Value), 2.0780 GeV (Meas)
Targets: Hydrogen reference cell (136 psi), Optics foils
Raster: On (2.5mm x 2.5mm in MCC units)
Neutron Arm Setting: 32 degrees
BigBite Setting: 52 degrees, 710 A, 140cm from target
(Transversity distance)
4648 Optics: Carbon foils, 1 uA, short run for raster, beam
position check.
4649 Optics: Hydrogen ref. cell (136 psi), 1 uA, short run
(beam tripped)
4650 Optics: Hydrogen ref. cell (136 psi), 1 uA
4651 Optics: Hydrogen ref. cell (136 psi), 2 uA, Brandon
tuned MWDC HVs prior to starting run
4652 Optics: Hydrogen ref. cell (136 psi), 4 uA, JUNK (beam
tripped at start), Brandon tuned MWDC HVs prior to starting run
4653 Optics: Hydrogen ref. cell (136 psi), 4 uA, (end of run
failed)
4654 JUNK -- Had to restart CODA, rebootede DAQ ROCs
4655 Optics: Hydrogen ref. cell (136 psi), 6 uA, Brandon
tuned MWDC HVs prior to starting run
4656 Optics: Carbon Foils, 1 uA