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    User name M.Shabestari

    Log entry time 00:05:04 on December 2,2008

    Entry number 251671

    keyword=Swing Shift Summary

    Swing shift summary December 1, 2008

    SL : Mitra Shabestari
    TO : Huan Yao
    3rd : Mauro Iodice


    16:00 Shift started. We continue production running 12uA on 3He.


    Run Summary
    ---------------


    Run# #events HAPPEX run# Charge (C)
    ____ _______ ___________ __________

    4092 1M 30492 0.03888

    4093 1M 30492 0.03926

    4094 229K 30492 0.008917

    - BigBite HV Tripped. We stopped run 4049.

    4095 1M 30492 0.03904

    - Run coordinator suggests to take two 10-minute runs for RICH pedestal check
    (with and without beam.)

    4096 5K RICH pedestal check with beam.

    4097 5K RICH pedestal check without beam.

    4098 236K 30493 0.00878

    - Beam has been very unstable during last 30 minutes. BigBite HV tripped. Stopped run 4098.

    4099 59K 30493 0.001986

    - BigBite tripped again. turned off S14 & S15.
    We are having frequent beam trips. (See entry #251645)
    Turned off HV, and turned them back on.
    Shortly after turning the HV on, we got another trip.
    MCC called they informing us that they have problem tunning the beam.
    We keep BigBite HV off.

    Beam looks ok. Turned on BB HVs, and started taking data.

    4100 1M 30493 0.03880

    4101 543K 30493

    - Stopped the run since there was no respond from TS12 for ~300 seconds.
    Rebooted Trigger12.
    ROCs 8,9,10 do not respond. Rebooted ROCs.

    4102 443K 30493

    - Stopped the run since there was no respond from TS12 for ~40 seconds.
    Rebooted Trigger12.
    ROCs 8,9,10 do not respond. Rebooted ROCs.


    4103 1M 30493 0.03927

    4104 in progress