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    User name Markowitz

    Log entry time 23:56:46 on May10,2009

    Entry number 272473

    keyword=Swing shift summary

    16:28 Start parity run 31357
    Bigbite magnet off
    16:34
    Start run 20997 carbon/BeO optics targets
    Start run 2091 carbon/BeO optics targets
    rates very high in BB chambers. Turn off WC and restart runs.
    16:35 Start run 20998 carbon/BeO
    Start run 2092 carbon/BeO
    17:09 Turn raster off.
    Start run 20999 carbon/BeO
    Start run 2093 carbon/BeO
    17:20 Turn BigBite magnet back on (518A) and turn on BB WC.
    17:28 STart run 21000 carbon/BeO
    Start run 2094 carbon/BeO
    18:05 Move to 3He target, Put raster back on. Adjust prescalers. Turn off BB detectors.
    18:17 Production data, 3He target, runs 21001, 2095.
    18:58 Runs 21002, 2096.
    19:45 Runs 21003, 2097
    20:15 Bigbite HV alarm goes off. BB detectors were supposed to be off, but only WC had been turned off.
    20:15 Runs 21004, 2098.
    20:55 Runs 21005, 2099
    21:45 Runs 21006, 2100

    22:40 Major power failure in the east arc. MCC is calling people in and beam will be down for awhile.

    beam still gone at shift end.