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    User name Carlos

    Log entry time 00:06:00 on October17,2004

    Entry number 134466

    keyword=Swing shift summary

    Shift crew:
    ------------
    C. Munoz Camacho
    Qiang
    Wang

    Shift summary:
    ---------------

    16:00 Shift started with some trigger troubleshouting (see halog entry).

    16:03 Back to DVCS production.

    17:01 Bleedthrough measurement: 1.19%

    17:59 Troubles starting a new one after run 3739 (see halog entry)

    18:09 Back to normal.

    18:44 MCC called. RF problems. Beam not delivered for the next 15 min. Run in progress (3800) stopped early.

    18:50 DVCS pedestal run (11k).

    19:02 HRS pedestal run (161k).

    19:05 MMC called. Equipement problems. They're calling someone in. Estimate down time: 1h at least.

    19:15 Tried to take some cosmics. PA cosmics are not easy to take. Top paddle is out and bottom paddle is not in the trigger. Calorimeter cosmics should work. We moved back the calorimeter, increased HV and turn on the paddles. Counting rates seemed pretty low (0.5Hz). Before we could investigate further MCC called to try and send some pulsed beam into the Hall, so we set every back to running configuration.

    20:05 MCC got the same problem again (capture tripped).

    21:08 CW beam back to the hall after some pulsed beam. Quick harp scan. Everything looks ok.

    21:15 Some problems to restart CODA after cosmic run.

    21:30 Back to production.

    22:32 Moved target to optics for multifoil run (run 3811).

    22:44 Target back to LH2 (Two arms run: 3812).

    22:54 Bleedthrough measurement : 1.19%

    22:55 Back to production.