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    User name jpchen

    Log entry time 00:31:18 on November27,2007

    Entry number 216399

    keyword=Swing Shift Summary

    Swing Shift Summary:

    Shift workers: J. P. Chen (SL), X. Yan (TO)

    16:00 beam tuning
    16:05 Set both spectrometers to 1.70226 GeV/c for optcis study.
    Cycle left Q2 to 1200 A, Q3 to 1600 A, right Q2/Q3 to 1400 A.
    Left set by 16:11. Right set by 17:20.
    16:27 MCC called that they have problem with magnets.
    17:35, beam back. Asked for raster off. 50 uA.
    17:40 optics data taking.
    17:50 Moved siev slits in for both spectrometers.
    18:24. Beam off to get Hall B back online.
    18:24 change borg spectrometers to P=1.66953 GeV (+2%).
    Left set by 18:29. Right set by 18:50.
    18:50 MCC finished beam separation, ready to send beam back.
    19:10 MCC finished tuning, beam back. Resume optics study.
    19:13, MCC called that they need to stop our beam to tune for Hall B.
    20:15 beam back. resume optics study.
    20:35 move to open collimators for both spectrometers.
    20:43 change both p to 1.63679 GeV (0%).
    left set by 20:46. right set by 21:05.
    20:55 moved left sieve slits in.
    21:13 change left p to 1.6046 GeV (-2). Set by 21:15.
    21:17 moved right sieve in.
    21:30 moved left to open collimtor.
    21:41-21:43 chanegd left to 1.57132 GeV (-4%).
    21:43 change right to 1.60406 GeV (-2%).
    21:50 moved left sieve in.
    22:06 moved left siev out.
    22:15 Left optics study completed. change left p to 1.288023 GeV.
    22:20 moved right sieve out
    22:25 change right dipole to 1.57132 GeV (-4%). Set by 22:55.
    23:14 change left p to 1 GeG for NaI detector calibration.
    set by 23:25.
    23:35, moved right sieve in.
    23:50 completed right optcis study. moved right sieve out.
    23:45 cahneg left to 0.5 GeV for NaI detector calibration.
    Set by

    left spectrometers at 15 degree, optics study, 50/35 uA.
    2841, p=1.70226 (+4%), Open collimator. 17:40-17:46, 1.06M
    2842, p=1.70226 (+4%), sieve slits in. 17:53-18:24, 731K.
    2843, p=1.66953 (+2%), sieve in, 19:10-19:13, 109K.
    2844, p=1.66953 (+2%), sieve in. 20:18-20:33, 710K.
    2845, p=1.66953 (+2%), Open. 20:38-20:43, 1.02M.
    2846, p=1.63679 (0%), open, 20:48-20:53, 1.18M.
    2847, p=1.63679 (0%), sieve in, 20:57-21:00, 175K.
    2848, p=1.63679 (0%), sieve in, 21:01-21:13, 746K.
    2849, p=1.60406 (-2%), sieve in. 21:19-9:30, 685K.
    2850, p=1.60406 (-2%), Open. 21:34-21:40, 1.62M.
    2851, p=1:57132 (-4%), Open, 21:45-21:49, 1.14M.
    2852, p=1.57132 (-4%), sieve in. 21:55-22:05, 992K.
    2853, p=1.57132 (-4%), Open. 22:09-22:15, 1.646M.

    Production at 15 degree, p=1.288023 GeV.
    2854, 10 uA on LH2, 22:43-22:48, 1.11M.
    2855, 10 uA on Pb, 22:54-22:58. 1.036M.
    2856, 10 uA on He. 23:08-23:13, 1.22M.

    NaI calibration
    2857, p=1 GeV, 50 uA on optics target, 23:27-23:32, 1.1 M,
    2858, p=1 GeV, 50 uA on optcis target, 23:33-23:38, 1.19M.
    2859, p=1 GeV, 50 uA on optics taregt, 23:38-23:43, 1.05M.
    2860, p=0.5 GeV, 10 uA on Pb, 23:56-0:01, 1.24M.
    2861, p=0.5 GeV, 10 uA on Pb, 0:02-0:06, 1.03M.
    2862, p=0.5 GeV, 10 uA on He, 0:15-0:20, 1.007M.

    right spectrometer at 15 degree, optics study, 50/35 uA.
    21141, p=1.70226 (+4%), open collimator, 17:40-17:46, 1.01M.
    21142, p=1.70226 (+4%), sieve slits in. 17:53-18:24, 534K.
    21143, p=1,66953 (+2%), sieve in, 19:10-19:13, 98K.
    21144, p=1.66953 (+2%), sieve in. 20:18-20:33, 639K.
    21145, p=1.66953 (+2%), Open. 20:38-20:43. 1.04M.
    21146, p=1.66953 (0%), open. 21:10-21:14, 1.02M.
    21147, p=1.66953 (0%), sieve in. Prescaler not set properly. 21:19-21:19, 30K.
    21148, p=1.66953 (0%), sieve in. 21:30-21:41, 710K.
    21149, p=1.60406 (-2%), sieve in, 22:06-22:15, 592K.
    21150, p=1.60406 (-2%), Open. 22:20-22:24, 1.039M.
    *21151, p=1.57132 (-4%), Open, 22:35-22:39, 1.13M, raster check with LH2, dipole not set.
    *21152, p=1.57132 (-4%), Open, 23:08-23:13, 1.07M, raster on, He target. dipole already set.
    21153, p=1.57132 (-4%), open. 23:27:23:32, 1.02M. optics target.
    21154, p=1.57132 (-4%), sieve in, 23:39-23:45, 553K.