Day Shift Summary

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User name hyde

Log entry time 15:57:48 on November 05, 2010

Entry number 338674

keyword=Day Shift Summary

November 5, 2010, Day Shift Summary

Crew:
C. Hyde (SL)
R. Michaels (TO)
P. Nadel-Turonski (3rd)

Summary:
Hall C Target cooldown Hall A target boil-off
BCM Calibration Proceedure 3
http://opsntsrv.acc.jlab.org/ops_docs/online_document_files/MCC_online_files/HallA_BCM_linearity.pdf
DVCS kine 3-low
CODA config for production TrigDVCSBuff

Timeline:

08:00 Hall C Target Cooldown in progress. Turn off beam and move cryotarget out
08:00 Compton HV off
08:24 Start Run 8345 Optics Target ps5=1 coda config LeftHRS
08:30 Compton HV on Start Compton run 23818
09:00 Move to empty target for BCM calibration
09:08 Start BCM logging (run 163)
09:40 Move to 6msr collimator 0.6199
09:50 Start BCM Calibration #1 coda file 8348, bcm logging 164
10:05 Start BCM Calibration #2 coda file 8349, bcm logging 165
10:35 End BCM Calibration move target to optics
10:40 optics run 8350
10:35 End run 8350, beam off to check LH2 target heating.
11:15 A. Camsonne working on Compton DAQ
13:05 Asked MCC for Controlled Access. They pointed out the Target Beamline valves 1H04B and C closed target return temp is 53 and rising.
14:00 JP Chen in hall to reset target vacuum gauges. possibly instabilities in Hall C target and/or ESR caused temp spike on cold return.
15:00 D. Abbott checking deadtime
15:55 Controlled access continues for Target work

Run list:

Run 8345: start 08:30, 75K , 30 Hz electrons 10 Hz clock
Run 8348: start 09:50,, BCM Calibration Proceedure 1, 10 Hz clock
Run 8349: start 10:04 , BCM Calibration Proceedure 2, 10 Hz clock
Run 8350: start 10:40 , 42K optics target LeftHRS BCM Colimator in