Log entry time 23:59:10 on October 27, 2010

Entry number 337082

Swing Shift Summary: 16:00 - 24:00 Oct 27, 2010

Shift Crew

SL: Yi Qiang
TO: Mustafa Canan
Replay: Vina Punjabi

Shift Summary

16:00 Shift starts and Møller measurement was just finished, ramping down Møller magnets.
16:20 MCC send pulsed beam to the Hall with EMPTY target.
16:25 5 μA CW beam on EMPTY target, BPMs look good.
16:30 Harpscan returns good results, now move to 15 cm LH2 target for production.
16:40 Righ after we asked for 2 μA beam for production, beam tripped possibily due to a power glitch.
18:00 MCC is still trying to solve the beam dump IOC issue, experts are helping. At the mean time, moved target to EMPTY position for later beam tuning.
18:25 Beam tuning done, move target back to 15 cm LH2 for production!
18:30 Production starts with 2 μA beam from run 7970 with config: TrigDVCS.
19:40 Per Carlos's request, change DAQ config to DVCSTopBot starting from run 7972.
20:27 Changed DAQ config back to TrigDVCS starting from run 7973.
22:12 Changed DAQ config to DVCSTopBot starting from run 7976.
22:20 Beam stopped due to unstable gradient in 1st parss RF seperator.
22:40 Back to production.
23:55 Changed DAQ config to TrigDVCS starting from run 7979.
24:00 Shift finishs with production run 7979 running.

Run Summary

Kinematics 3: Low energy
P_HRSL = 1.494 GeV/c
θ_HRSL = 31.82°
θ_CAL = 14.78°
CAL dist. = 11 m