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    User name jpchen

    Log entry time 08:44:25 on October29,2007

    Entry number 210407

    keyword=10/29 owl shift summary

    10/29 Owl Shift Summary

    Shift workers: J. P. Chen (SL), K. Allada (TO), Z. E. Meziani (3rd).

    0:02 move to a new kinematics p=349.395 MeV/c
    0:27 take data with left spectrometer
    0:35 turn off NaI HV for testing
    0:42 tunred on NaI HV.
    1:19 take data also with right HRS.
    1:45 moved target to LH2
    1:54 target to 12C
    2:21 target to Fe
    2:44 Change to P0=285.869 MeV
    target moved to Pb
    2:50 Left spectrometer magnets are set.
    3:11 move to LH2
    3:30 change left HRS to P=427.038 MeV/c
    3:44 Right HRS magnets are set (for P0=285.869).
    3:46 Left HRS magnets are set (for P0=427.038)
    3:57 change Left HRS to p0=650.047 MeV/c.
    move target to Pb.
    4:12 Left magnets set.
    4:2 change right HRS to 427.038 MeV/c.
    move to LH2
    4:45 noticed that right dipole quenched.
    4:53 change left HRS to 747.755 MeV/c.
    5:27 change left HRS to 802.018 MeV/c.
    5:53 change left HRS to 860.195 MeV/c.
    6:20 change left HRS to 950 MeV/c. move to 30 degrees (very slow,
    keep stopping). Only moved to 50 degrees.
    6:50 there were white alarm on cryotarget, devices lost connection
    (power glitch?). Loop 1 temperature went up, pressure went down
    (probably partially vented?). called for beqam off. Rebooted ioc. closed vent valve, opened filled valve. Get things stablize, closed fill valve.
    6:55, right HRS dipole is set.
    7:20 chaneg right dipole to 922.593 MeV/c.


    P=349.395 MeV/c
    run 1425 0:27-0:35, 51 uA, Pb in LH2, 616K, Left HRS
    1426, 0:37-0:44, 51 uA, Pb in LH2, 312K, NaI HV off.
    1427, 0:44-1:17, 51 uA, Pb in LH2, 3M, NaI HV back on.
    20242, 1:19-1:44, 300K, 51 uA, Pb in LH2,
    1428, 1:18-1:45, 2M, 51 uA, Pb in LH2.
    20243, 1:51-1:54, 360K, 51 uA on LH2
    1429, 1:49-1:54, 300K, 51 uA on LH2
    20244, 2:04-2:21, 955K. 51 uA on 12C
    1430, 2:04-2:21,966K, 51uA on 12C.
    20245, 2:27-2:42,860K, 51 uA on Fe.
    1431, 2:27-2:42,923K, 51 uA on Fe.

    P0=285.869 MeV/c
    1432, 2:55-3:11, 1.2M, 52 uA on Pb.
    1433, 3:20-3:31, 938K, 52 uA on LH2.
    20246, 3:21-3:44, 1.9M, 52 uA on LH2, Dipole is still settling.
    20247, 3:44-3:57, 1.1M, 52 uA on LH2, magnets are set.
    20248, 4:03-4:20, 2M, 52 uA on Pb.

    p0=427.038 MeV/c.
    1434, 3:47-3:57, 820K, 52 uA on LH2.
    20249, 7:00-7:17, 2.3M, 53 uA on LH2.

    P0=650.047 MeV/c.
    1435, 4:13-4:20, 494K, 52 uA on Pb.
    1436, 4:26-4:37, 1M, 53 uA on LH2. ps3=1, deadtime 25%.
    1437, 4:38-4:50, 710 K, 52 uA on LH2, ps3=2, deadtime 5%.

    p0=747.755 MeV/c
    1438, 5:13-5:16, 31K, 52 uA on LH2, ps3=2
    1439, 5:16-5:27,231K, 52 uA on LH2, ps3=1.

    p0=802.018 MeV
    1440, 5:41-5:52, 324K, 52 uA on LH2.

    p0=860.195 MeV
    1441, 6:06-6:18, 299K, 52 uA on LH2.

    run 1442, 7:28-7:33, 157K, 52 uA on LH2, Left HRS at ~50 degrees.
    p0=775.0 MeV/c

    1443, 7:45-8:08, 2M, 53 uA on Pb