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    User name A. Deur

    Log entry time 00:30:42 on August17,2001

    Entry number 70889

    keyword=Shift summary

    4:00. Noticed that the beam was misaligned. We decreased the current to 1 uA to tune the beam safely. This happened during run 2843. Previous run is also affected (from on-line replay)

    Configuration: out/out
    run 2842/21842 157K/149K Grand tot:880K Note: Problem with beam position
    run 2843/21843 139K/133K Grand tot:1.152M Note: Problem with beam position
    run 2844/21844 185K/168K Grand tot:1.505M
    run 2845/21845 176K/166K Grand tot:1.847M
    6:20: Target and beam polarimetry. NMR 48.5% EPR 47.3%
    run 2846/21846 few min run (beam down for Hall B tune) + coda crashed at the end.
    6:40. Beam down for Hall B tune.
    6:58 beam back.
    7:00 beam down (Hall B tune).
    7:05 beam is really down (even for Hall B) because of a FSD trip.
    run 2847/218447 junk.
    7:35 Beam back
    run 2848/218448 149K/141K 2.137M
    20:10 MCC is having Beam Loss Monitor alarm: Beam down.
    21:13 Beam back
    run 2849/218448 157K/147K 2.441M
    run 2850/218448 150K/140K 2.731M
    (because it is unclear that we can use runs 2842/2843, we, with Todd, decided to take more than the 2.25 M events requiered in the runplan)
    run 2851/218448 177K/165K 3.573M
    End of the data taking (longitudinal, out out): Tot # evt: 3.573 M. Without suspicious runs: 2.995M
    23:18 We put the bean 1/2 wave plate in: Set up target out, Beam in.
    Start pita slope calibration.
    2852/2853/2854/2855 pita slope calibration runs