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    User name X. Zheng

    Log entry time 16:00:22 on July18,2003

    Entry number 104491

    keyword=shift summary

    8:00am, shift starts with watching the beam position;
    8:15, beam position okay, continue delta scan;

    (the shift leader from owl shift said he synchronize the run number for left and right arms)

    -2%, P0 = 2.093 GeV, Iset = 194A, Iread = 193.75A
    run / start:stop / events / target / raster / bcm / T1(R)/ DAQ(R)
    22403/2403 / 08:13/ ? / 0.6M / Multi / on / 2 uA / ?110K

    8:20, fill reference cell with N2 to 102 psig;

    8:25, check raster on 12C foils, OK;
    8:26, move target to ref cell position;

    -2%, P0 = 2.093 GeV, Iset = 194A, Iread = 193.75A
    run / start:stop / events / target / raster / bcm / T1(R)/ DAQ(R)
    22406/2406 / 08:34/ 08:44 / 1.5M / RefN2 / on / 2 uA / 269K/ 3.5K
    22408/2408 / 08:53/ 09:05 / 1.4M / Empty / on / 2 uA / 29K/ 3.0K

    -4%, P0 = 2.051 GeV, Iset = 190A, Iread = 189.75A
    run / start:stop / events / target / raster / bcm / T1(R)/ DAQ(R)
    22410/2410 / 09:21/ 09:28 / 1.5M / Multi / on / 2 uA / 120K/ 3.6K
    22411/2411 / 09:31/ 09:40 / 1.7M / Multi / off / 2 uA / 120K/ 3.0K
    22412/2412 / 09:47/ 09:57 / 1.5M / Empty / on / 2 uA / 28K/ 3.0K

    10:10, Hall is in controlled access;
    12:45, back to beam permit;

    12:50, MCC asked for Empty target position. Start beam tuning with 18 uA.
    13:10, beam positon adjustment with 5 uA;
    13:28, harp scan 2149, sigma=395(Ax)/11.9(Ay)/460(Bx)/105(By);
    13:46, harp scan 2150, sigma=360(Ax)/152(Ay)/457(Bx)/62(By);
    13:50, harp scan, 2151, sigma=376(Ax)/111(Ay)/469(Bx)/114(By);
    13:55, harp scan, 2152, sigma didn't change, beam positon is off in X;
    14:00, harp scan, 2153, no beam
    14:10, problem with beam delivery, Hall A in controlled access, MCC expert is inspecting the problem;
    15:55, MCC update: will bring the Hall to beam permit in 5~10 minutes;