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    User name averett

    Log entry time 00:07:00 on May 3,2009

    Entry number 1

    keyword=Swing Shift Summary (05/02/09)

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    Swing Shift Summary

    4pm production running on 3He polarized target

    16:40 install 3He reference cell, pressure = 128 psig,
    production runs: 1770, 20676,

    17:37 evacuate, pump, purge reference cell (remove 3He gas)
    Fill reference cell with 10 psig of N2 gas.
    Runs 1772, 20678

    18:15 evacuate, pump, purge reference cell (remove N2 gas)
    Fill reference cell with 130 psig of H2 gas.
    Runs 1774, 20680

    19:16 evacuate reference cell, P=-20 psig,
    empty reference cell runs 1775, 20681


    19:30 move polarized 3He cell into beam. Force spin flip after putting target into beam position, new polarization is only 45.7% (was about 60% before reference cell runs), resume production running

    21:05 after runs 1777 and 20683 and HAPPEX 31313, we asked MCC to move the beam half-wave plate to OUT; resume production running

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