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    User name K. Grimm

    Log entry time 00:03:03 on October19,2009

    Entry number 295577

    keyword=Swing Shift Summary

    SL: Klaus Grimm
    TO: Wouter Deconinck
    3rd: Serkan Golge


    Summary

    Productions runs at 97uA and IHWP IN
    Very smooth shift !

    Run pais
    13379 47.0
    13380 44.4
    13381 46.8
    13382 47.3
    13383 36.8 (due to beam trips)
    13384 42.2
    13385 44.1
    13385
    13386
    13387


    Details

    16:00 Paul King put Compton det HV back to -1800 after HV trip
    16:08 Start Compton run 20489
    16:13 Spot++ run 25075 (Left Arm)
    16:16 Start Happex run 13380
    16:43 Stopped Compton run due to "Coda Buffer Full errors". Compton Coda has been rebooted.
    16:46 Start Compton run 20490
    17:13 Start Compton run 20491. Dedicated run for for testing PMT linearity.
    17:14 Start Happex run 13881
    17:16 Start Compton run 20492 (PMT linearity test)
    18:00 Megan finished Compton PMT linearity tests and is returing Compton for production runs
    18:02 Start Compton run 20493
    18:10 End Happex run 13881
    18:12 Start Happex run 13882
    18:19 Compton Coda spits out "int4 non utilisee" messages. According to Megan we don't have to worry about it.
    Seems to be related with the electron detector that is not used for data taking.
    19:08 End Happex run 13882
    19:12 Spot++ run 25076 (Left Arm)
    19:10 Start Happex run 13883
    19:55 End Compton run 20493. Could not start a new run because of ROC 6 not responding. Start Coda failed, again of ROC 6 not responding. Alex did power clycle ROC6 and Compton DAQ is running again.

    19:50 Beam off due to RF separation problems (MCC)
    20:15 Beam is back
    20:12 End Happex run 13883
    20:15 Start Happex run 13884
    20:10 Diancheng took over the Compton DAQ and operates it from the back room of the CH.
    20:40 observing more beam trips
    20:45 Compton GSO PMT HV tripped. Turned HV on again (back to -1800V)
    20:59 Another Compton GSO PMT HV Trip. Turned HV on.
    21:10 End Happex run 13884
    21:11 Start Happex run 13885
    21:44 Another Compton GSO PMT HV Trip. Turned HV on.
    21:45 Another Compton GSO PMT HV Trip. Turned HV on.
    22:08 End Happex run 13885
    22:10 Start Happex run 13886
    23:10 End Happex run 13886
    23:11 Start Happex run 13887, run crashed
    23:34 Start Happex run 13888