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    User name Gao

    Log entry time 00:05:34 on June13,2009

    Entry number 280905

    keyword=Swing shift summary

    16:00 MCC started to put beam back to Hall A
    ~17:00 asked MCC to do harp scan for A & B
    17:35 Harp scan done
    17:40 raster study run:3513/22380, about 4 mm by 4.5 mm (7 by 5 MCC))
    17:50 raster size study with 3He target run 3514/22381 (2mm by 2mm)
    3 by 3 (MCC)
    Target polarization measured 64.5%
    run 3515/22382 MCC 10 by 8 (6 mm by 6mm)
    18:25 started 3He production run 3517/22384 new Happex run 31521
    wrong prescale for left HRS.
    19:24 started 3He production run 3518/22385 wrong prescale for left HRS
    19:32 started 3He production run 3519/22386 T3 need at least 1kHz rate
    20:08 started 3520/22387 Right CODA crashed just before we requested escorted acccess for the Compton detector
    21:08 MCC call for beam ready; starting beam recovery @ BeO target
    21:20 Raster check OK on carbons. Going to He3 Cell
    21:25 NMR -> 54% Pol.
    21:26 Raster check on He3 is OK. Ramp current to 10uA. Start production
    21:27 Start production pair 3524/32391. BPM is unstable
    22:00 started production run 3525/22392
    22"10 MCC called and needs to take beam for half an hour for investigating some vacuum problem.
    22:27 beam back; production run 3526/22393
    23:50 LHRS Q1; RHRS Q1,D,Q3 quenched due to low level (~0%) of Helium. Stop beam/production runs