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    User name M.Shabestari

    Log entry time 16:03:17 on June 1,2008

    Entry number 240665

    keyword=Day Shift Summary

    Day shift summary June 1, 2008

    SL : Mitra Shabestari
    TO : Mitra Shabestari
    3rd : Kawtar Hafidi


    Summary
    ========

    Kinematics 8

    BigBite = 50 degrees,
    LHRS = 43.5 degrees, LHRS momentum = 0.9314 GeV/c



    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    08:00 Shift started. Run# 1781 has already started.

    Target: 6 cm LH2
    Beam current: 21 uA

    07:48 ----> Run# 1781 ; events = 5 M
    08:50 ----> Run# 1782 ; events = 5 M
    10:05 ----> Run# 1783 ; events = 5 M
    11:21 ----> Run# 1784 ; events = 5 M
    12:28 ----> Run# 1785 ; events = 1.3 M
    13:00 ----> Low pressure, main relay, alarm on the " Detectors Gas System Interlock Status"
    went off. The Ar pressure on "GAS SHED" is down to -47 PSI.
    Contacted Nikos and Ed. Ed is coming to check the problem.

    13:08 ----> Run# 1786 ; events = 5 M
    13:16 ----> Alarm is gone. The red lights on "low pressure", and "main rely" went back to green.
    Ar pressure is up to 2774 PSI.
    13:26 ----> Low pressure problem is fixed. Ed changed the Ar bottle.

    14:11 ----> Run# 1787 ; events = 5 M
    14:46 ----> We noticed a visible change in Front & Back chambers hits for runs 1787 and 1780.
    The difference MIGHT BE due to drop in Ar pressure earlier.
    15:18 ----> Run# 1788 ; events




    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    Total number of events for Kinematics 8 before Day Shift = 89 M
    Total number of events for Kinematics 8 at the end of Day Shift = 31.3 M

    -----------------------------------------------
    Total number of events for Kinematics 8 = 120.3 M
    -----------------------------------------------