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    User name F.Benmokhtar

    Log entry time 08:04:13 on Oktober28,2000

    Entry number 51186

    keyword=*E89044* Shift Summary

    Shift Summary:
    *************

    00:00-Bob Michaels is in the Hall, working to set trigger like it was for
    ...........***E89044 Experiment***.
    00:50- Bob Finished his work in the hall.
    ............Running cosmics to check that nothing is broken.
    01:20- Halla goes to beam permit.
    01:25- Start running with Multifoil Carbon target, 2 uA.
    01:40- Running with 40 uA, Collimator 6msr in both arms.
    ............we noted that the raster has an unusual shape, see Bob's
    ............halog entry, so we did some tests by taking only a pulser
    ............then changed to dummy target, with the initial prescals.
    02:10- Back to Multifoil carbon target.
    02:39- Running with Open Collimators.
    03:09- Changed fields to 1.000 GeV/c.
    03:18- Mcc Called, Accelerator tripped, they will give us beam in 7 minutes.
    03:27- Got beam, running again with 40uA.
    03:48- Collimators 6msr in.
    04:25- Put Sieve Slit in.
    04:50- Changed field to 0.975 GeV/c.
    04:55- Running with Open Collimators., 40 uA.
    05:20- Moved beam 1mm to the right, took short run, raster
    ............looks better now.
    05:25- Beam centred, Put Collimators 6 msr in.
    05:50- Cycle Quads, Moved Spectrometters to the new settings.
    ............Theta_R= 39.73 deg, P_R=1.025 GeV/c
    ............Theta_L=39.73 deg, P_L=1.025 GeV/c
    06:22- Started running.
    ............ Q3 Right arm went to positive polarity!!!???
    ............For what its worth, the T1 and T3 rates are ~equal.
    06:55- Runnig with Open Collimators.
    07:15- Change fields to 1.00 GeV/c.
    07:25- Running with Open Collimators.
    07:50- Running with Collimators 6msr in.


    Run Summary:
    ************
    a)Theta_R=Theta_L=38.73 deg:
    *************************
    2128: Cosmic run.
    2129: Cosmic run.
    2130, 2131, 2132: test runs for prescals adjustment.
    2133: Collimator 6 msr , Momentum=1.025 GeV/c.
    2134: test run, all prescals very big eccept ps8=1 (pulser), to check
    .........the raster.
    2135:10 cm dummy.
    2137: Open Collimators , Momentum=1.025 GeV/c.
    2138: Open Collimators , Momentum=1.025 GeV/c.
    2139: Open Collimators , Momentum=1.000 GeV/c.........Stopped, beam down
    2140: Open Collimators , Momentum=1.000 GeV/c.
    2141: Open Collimators , Momentum=1.000 GeV/c..........Short run.
    2142: Collimators 6msr , Momentum=1.000 GeV/c.
    2143: Sieve Slit in.........., Momentum=1.000 GeV/c.
    2144:.......................................................................................Junk.
    2145: Open Collimators , Momentum=0.975 GeV/c.
    2146: Open Collimators , Momentum=0.975 GeV/c...........Beam coord (1mm, 0).
    2147: Collimator 6 msr , Momentum=0.975 GeV/c.

    b)Theta_R=Theta_L=39.73 deg:
    *************************
    2148: Collimator 6 msr , Momentum=1.025 GeV/c.
    2149: Open Collimators , Momentum=1.025 GeV/c.
    2150:........................................................................................Junk.
    2151: Open Collimators , Momentum=1.000 GeV/c.
    2152: Collimators 6msr , Momentum=1.000 GeV/c.