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    User name jpchen

    Log entry time 16:07:59 on April23,2012

    Entry number 378073

    keyword=Day shift summary.

    Day shift summary:

    Shift worksers: J. P. Chen (SL), M. HUang (TO), R. Zielinski (3rd).

    8:00 Owl shift finished data taking at P0=0.8448 GeV/c.
    Changed to P0=0.7941 GeV/c. Data taking for this setting.
    11:50-12:00 Beam off for C100 gradient change.
    Target work to fix problme with motion: back out of limit switch
    remotely. It seems working.
    12:00 beam back. Target moved back to top cell, initially no offset, then put in proper offset. Also get back the baseline to have polarization monitoring.
    Back to production.
    13:576 Completed production at P0=0.7941 GeV/c, 182.7 M events.
    13:57 MCC wanted to check orbits. Trying to move target to Home (EMPTY),
    it did not work. TO called Josh, Josh came in, were able to move.
    Tragte to Home.
    14:30 MCC did some tuning, Now try to send CW.
    14:58 Beam back, started dilution run on EMPTY (Home).
    15:10 Moved to 12C, dilution run
    15:15 Right DAQ stuck, reboot.
    Beam energy shifted by 1 MeV when Hall C beam off. Asked MCC to
    adjust by hand back to the original value (1157.2 MeV).
    Took one more run on 12C.
    15:30 moved to cross/dummy
    15:00 moved to Home/Empty position.
    15:55 Moller measurement starts.
    16:00 Moller still get ready.

    Run list:
    P0=0.7941 GeV/c, NH3 top.

    L/3rd/R #of Events L/R
    4905/41569 7M HWP1 IN
    4906/41570 7M
    4907/41571/23792 7/6.1M
    4908/41572/23793 7/6.1M
    4909/41573/23794 7/6M
    4910/41574/23795 7/6M
    4911/41575/23796 7/6M
    4912/41576/23797 7/6.1M
    4913/41577/23798 5.8/5M
    4914/41578/23799 7/6.2M
    4915/41579/23800 2.4/2.1M
    4916/41580/23801 7/6M
    4917/41581/23802 7/6.1M
    4918/41582/23803 7/6.1M
    4919/41583/23804 7/6.1M HWP1 IN
    4920/41584/23805 5/4.3 HWP1 OUT
    Total events 182.7M

    4921/41585/23806 1.6/1.3M dilution Home/Empty
    4922/23807-23809/41586 4.7/0.46M dilution, 12C. Right DAQ problem.
    Hall C beam off, energy drifted by 1 MeV. Adjusted back.
    4923/41587/23810 1.3/1.1M Dilution 12C.
    4924/41588/23811 1.6/1.3M dilution Dummy/Cross
    4925/41589/23812 3.1/2.6M, dilution dummy/cross