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    User name Ibrahim

    Log entry time 07:59:35 on May23,2009

    Entry number 275725

    keyword=Owl Shift Summary (May 23, 2009)



    Owl Shift Summary (May 23,2009)
    -------------------------------

    SL: Hassan Ibrahim
    TO: Vladimir Nelyubin
    3rd: Frullani Salvatore

    00:00 Shift started. Waiting for the target polarization to be reasonable. Doug is here to come up with a plan for the meantime.

    00:15 Paged the target on call to check the reference cell status.

    00:45 Moved the target to the Ref. cell (H2 @ 134 PSI). Doug will do a delta scan for the HRS optimization. LHRS/RHRS angels are 14.5/16 Deg.

    00:52 Runs 2610/21513 (2.277/2.2248 GeV)

    01:00 Changed the LHRS/RHRS momenta to 2.250/2.200 GeV.

    01:39 Runs 2611/21514 (Hydrogen @ 2.250/2.200 GeV)

    01:57 Moved to the optics target

    02:00 Runs 2612/21515 (Carbon @ 2.250/2.200 GeV)

    02:08 Moved to the He3 target.

    02:09 Changed the LHRS/RHRS momenta to 2.225/2.175 GeV

    02:18 NMR measurement (38%).

    02:20 Moved to the optics target.

    02:37 Runs 2613/21516 (Carbon @ 2.225/2.175 GeV)

    02:44 Moved to the Ref. Cell.

    02:48 Runs 2614/21517 (Hydrogen @ 2.225/2.175 GeV)

    03:05 Changed the LHRS/RHRS momenta to 2.200/2.150 GeV

    03:35 Runs 2615/21518 (Hydrogen @ 2.200/2.150 GeV)

    03:51 Moved to the optics target.

    03:54 Runs 2616/21519 (Carbon @ 2.200/2.150 GeV)

    04:00 Changed LHRS momentum to 2.175 GeV. Recycling the RHRS Q2 and Q3 quads.

    04:07 Run 2617 (Carbon @ 2.175 GeV). Run 21520 is junk.

    04:13 Moved to the Ref. cell target

    04:16 Run 2618 (Hydrogen @ 2.175 GeV). Run 21521 is junk.

    04:32 Recycling the LHRS Q2 and Q3 quads.

    04:47 Moved to the He3 cell.

    04:50 Back to production. LHRS/RHRS momenta are 2.277/2.2248 GeV and beam current is 10 uA (4x4mm raster).

    04:54 Started the HAPPEX DAQ. New run is 31400.

    04:56 Runs 2619/21522.

    05:06 Runs 2620/21523

    05:24 Runs 2621/21524

    06:00 Runs 2622/21525

    06:28 NMR measurement (51.6%). NMR Labview froze afterwards!

    06:30 Runs 2623/21526

    07:01 Runs 2624/21527

    07:32 Runs 2625/21528

    07:59 Runs 2626/21529

    08:00 Shift ends.