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    User name glashausser

    Log entry time 16:06:03 on January11,2003

    Entry number 91485

    keyword=Shift Summary 1/11/03 day

    8:00 Doing N2 reference cell, last item before production
    8:20 NMR, EPR
    8:35 He cell at 0 deg, for production, 10 uA, raster on, OTR in
    8:40 Start run 20274/1322
    9:28 Stop run--400K events 15% good ->60K x 2sides = 120K
    Need: 200K (in run plan) x (40/35)**2 = 260 K total for 4 field/plate settings
    9:30 Change field to 180 deg
    9:40 NMR measurement (tgt to pickup coil position)
    9:50 start 20275/ 1275 3He pol 180
    10:03 Stop runs. Decide not to continue this 180 setting because of
    loss of polarization in this position--
    lost 5% polarization even with corrector coil.
    10:14 Acc tuning
    10:25 Call for entry to reset Q2 left (Attempt at remote reset failed.)
    10:40 MCC asked to try beam before doing access.
    11:10 MCC now ready for access
    11:30 Reset Q2 with telephone help from Mark Stevens
    11:35 Q2 recycling. Measuring tgt polarization.
    11:45 beam back Look at BeO and at spot++.
    11:57 Pol 3He field 0 Beam half wave plate out
    (The rotating plate also moved, from (DAC) 6725 to (DAC) 6435. Latter changes needed to keep charge asymmetry low in A and C. )
    Polar of tgt. .32 by EPR .31 by NMR
    Software guy (not expert) coming in to look at FFB.
    12:03 Ready for production beam again
    12:08 Start run 20277/1277
    12:30 Charge asymmetry high ~500. Experts paged.
    13:01 Stop run to let FFB guy (from EES) connect his diagnostics.
    13:10 Start 20278 etc with same configuration
    Bryan Moffit coming in to look at charge asymmetry setup
    13:45 Finish 20278/1278/1225
    Rotate Tgt to 270 deg
    14:03 Start 20279/1279
    Moffitt starting fix of charge asymmetry
    [Parity people have to come in to change their measurement setup each time we put half wave plate in or out.]
    Hall B doing Moller, and want us off intermittently over next half hr.
    FFB guy has to go into injector for an hour after Moller. So...
    14:23 Stop these runs
    Parity will continue asymmetry setup then, and we will begin 270 again.
    15:40 Beam expected imminently.
    Fast Feedback is working again.
    16:00 Beam intermittent. Haven't started a run yet.