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    User name LeRose

    Log entry time 16:21:57 on April30,2004

    Entry number 120009

    keyword=Shift Summary

    Program is production running on Be


    2965 in progress at start of shift
    8:08 RICH trip ~10 mins
    08:43 CODA problem with start run ~10 mins
    09:16 RICH Trip ~5 mins during 2968
    09:50 switching to "thin" Be for attempt at high current (140 Micro amps) runninig
    10:10 left arm magnet controls go screwy (displays blank. Came back spontaneously but set to zero. Also, came back as "no septum" quads were wrong. (see halog 119961)
    Looks like the "thick" Be is 2x thinner than the "thin" Be (going to "thin" doubled the counting rates). Reinserted the "thick" Be (~90 mg/cm^2) (see halog 119966)
    11:26 RICH trip
    12:15 dropped from 130 micro amps to reduce trip rate
    12:38 VDC HV trip during run 2977 (triggered by RICH gas valve operation - Bodo says it always happens)
    13:32 Controlled access to adjust settings of beam dump ion chambers
    Had to make a second controlled access to reset the diffuser water flow.
    14:51 Trying for beam again
    MCC trying to go to 140 micro amps
    15:25 going back to 120 micro amps

    Run Summary

    2966 08:10-08:43 Be Production
    2967 CODA problems at start, lost
    2968 08:51-09:17 Be Production, RICH trip
    2969 09:19-09:47 Be Production
    2970 10:03-10:05 Start of current ramp up tests
    2971 10:35-10:53 Be production ramping up current (Junk!)
    2972 10:57-11:25 Be production
    2973 11:26 Junk, RICH tripped at start
    2974 11:29-11:52 Be Production
    2975 11:53-12:16 Be Production
    2976 12:16-12:38 Be Production
    2977 12:38-12:43 Be Production (VDC HV trip)
    2978 12:45-13:07 Be Production
    2979 13:07-13:32 Be Production (.82M)
    2980 15:07-15:24 Be Production (140 micro amps)
    2981 15:26- Be Production (120 micro amps) Deadtime issues see halog 120004