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    User name Lindgren

    Log entry time 16:01:27 on April28,2004

    Entry number 119710

    keyword=Shift Summary

    8:00 AM Continue Production Running on Be, Run 2875 in progress
    8:11 AM End Run 2875 1M Events
    Run 2876 8:12 AM - 8:35 AM 1M Events
    Run 2877 8:36 AM - 8:59 AM 1M Events
    9:05 AM MCC is making beam studies from 9:00 am - about Noon
    (Harp, SLI, OTR)
    Run 2878 Junk
    Bogdan suggest during this time we reduce RICH HV to 2000 and take a 100,000 events
    Start Run 2879 RICH HV=2000
    Stop Run 2879 9:04 AM 0.01M Events
    Raise RICH HV to 2101
    9:45 AM Start Run 2880
    12:30 PM End Run 2880 0.13M Events
    The first 0.1M events were accumulated in a relatively short time at beam currents of about 5ua, then 25 ua, etc.
    The last 0.03M were accumulated over a few hours with who knows what was happening.
    Beam is back 112 ua.
    12:41 PM Start Run 2881
    RICH HV=2100
    1:07 End Run 2881 1M Events
    1:08 Start Run 2882
    1:33 End Run 2882 1M Events
    1:34 Start Run 2883
    1:59 End Run 2883 !M Events
    2:00 Start Run 2884
    2:25 End Run 2884 1M Events
    2:25 Start Run 2885
    2:58 End Run 2885 1M Events
    2:59 Start Run 2886
    3:25 End Run 2886 1M Events
    3:26 Start Run 2287
    3:40 PM Lost control of target. Reboot IOC. Back up again. Did not stop run.
    3:51 End Run 2287 1M Events
    3:52 Start Run 2288

    Short summary
    Production running on Be target from 8 - 9. MCC did beam studies from 9 - 12:45. The target IOC crashed once. Continue production running 1:00 PM - 4:00 PM. No other crashes.