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    User name M Friend

    Log entry time 08:01:44 on December 8,2010

    Entry number 343310

    keyword=Owl shift summary

    Starting shift with accelerator vacuum/valve problem. No beam.

    03:05 - MCC ready to deliver beam. Beam recovery started.

    03:59 - Beam recovery finished (it took so long because after the first harp scan, the spot size was a little big). Taking 1 uA on LH2. Alexandre and Carlos are here making sure the new DAQ is working.

    04:53 - Requested beam through the Compton chicane. Since the network has been fixed, running the Compton DAQ no longer causes deadtime for the DVCS DAQ.

    05:12 - Beam is now in the Compton chicane, back to 1uA running. Compton rates look great! The chicane being on does not appear to effect the DVCS rates. Will run the Compton DAQ tonight.

    05:20 - Started production running.

    05:45 - Beam position is a little off. Called MCC to have them move it back to centered.

    Finishing the shift with production run 9373 ongoing.

    Runlist:
    There were lots of short runs used for testing the new firmware and checking the trigger rates. Below is a list of only longer.

    Run Events BCM U3 D3 (C) Time Avg Curr Deadtime
    9371 1310 k 0.00315 0.00314 59.3 mins 0.8844 uA 27.73%
    9372 1558 k 0.00377 0.00376 59.8 mins 1.0486 uA 27.44%

    Long new firmware runs:
    9365 334 k 0.00092 0.00092 14.5 mins 1.0577 uA 52.75%
    9366 753 k 0.00134 0.00134 22.0 mins 1.0151 uA 84.83%

    Cosmics:
    9363 0 k 0.00017 0.00005 138.4 mins 0.0131 uA -3561.11%