Log entry time 07:56:48 on November 19, 2010

Entry number 340769

Crew

• SL: Jin Huang  for Vincent Sulkosky
• TO: Robert Michaels
• Analysis: florian itard
• Expert: Alexandre Camsonne

Time Line

• 0000 Shift started. Status:
  Full production : Run
  E beam = 4.456GeV, 3uA; BPM A&B = (0,0)mm
  HRSL: 65.552 degree, 1.864GeV
  LH2 target, cryo status stable
• 0100 Move to LD2 target, start run 8884
• 0120 Compton HV trip. Turn back on, Restart Compton run.
• 0409 MCC Injector problem. Beam off. Mean while, take cosmic run 8888
• 0427 Beam back, continue production with run 8889
• 0540 Run 8890 was taken by Alex on DVCS daq2. It was a test run for faster DAQ. Data should be good, although both start run log and end of run log is missing
• 0720 Target temperature begin to rise due to reduced cryo supply and Hall C target problem.

Run List

Run    Events  BCM U3   D3 (C)    Time         Avg Curr      Deadtime
8883   617 k   0.01012  0.01119   61.6 mins    2.8828 uA    14.44%      <- LH2 
8884   950 k   0.00876  0.00963   52.4 mins    2.9263 uA    28.62%              <-   LD2 since this run
8885  1216 k   0.01118  0.01238   66.3 mins    2.9595 uA    27.97%
8886   924 k   0.00847  0.00935   53.0 mins    2.8026 uA    26.77%
8887    69 k   0.00056  0.00062    9.8 mins    1.0056 uA    32.47%              <- Stopped due to injector work
8889   974 k   0.00887  0.00984   60.3 mins    2.5860 uA    26.95%
8890 Test run by Alex
8891 Good 1hour production run. End of run log is missing so far