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    User name M.Olson

    Log entry time 08:03:06 on June 4,2007

    Entry number 204220

    keyword=Owl Shift Summary

    Owl Shift Summary:

    M.Olson, P.Decowski

    Kinematics Change at Beginning of Shift to Q2=68 fm^-2

    Note: Could not move RHRS camera. Fortunately, we had a vernier option available that was already near the center of the screen.


    0048: Kinematics change complete Q2=68 fm^-2
    set prescales
    start run 4026 (start run dialog not updated)

    0104: End run 4026 to adjust prescale factors

    0106: Start run 4027 (PS1=3500, PS2=15200, PS3=1, PS4=86, PS5,6,7=1)
    DT=9%

    0138: End run 4027 (He4, Q2=68, 50/60uA, 1.25M)
    0158: End run 4028 (He4, Q2=68, 50uA, 693k)

    Set PS3 from 1 to 2 to keep dead time to ~2%

    0159: Start run 4029 (PS3 = 2)
    0258: End run 4029 (He4, Q2=68, 50uA, 1.25M)

    0355: End run 4030 (He4, Q2=68, 60uA, 1.25M)

    0500: End run 4031 (He4, Q2=68, 55/60uA, 1.25M)

    0609: End run 4032 (He4, Q2=68, 60uA, 1.25M)

    0710: End run 4033 (He4, Q2=68, 60uA, 1.25M)

    0742: Current now 65uA.

    Run 4034 in progress at end of shift.
    Average Current (Runs 4026-4033) = 45.8 uA (from endruns)