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    User name X. Zheng

    Log entry time 01:30:47 on August26,2001

    Entry number 72510

    keyword=missing entry for EPR @ Aug-25, 8:24am

    Aug-25, 8:24am, EPR performed after NMR,
    latest run number 3114/31114

    conditions: all grad. coils off, beam off, 3 longitudinal lasers on,
    target @ pick-up coil position, Vmod 0.75 V -> 0.7 V, RF 16.0V,
    sweep/waiting time = 10/24 sec.

    P = 41.15%

    1st order fit:
    down: freq. shift = -44.26 KHz +/- 2.15 KHz, P = -41.39%+/- 2.01%
    up: freq. shift = 43.73 KHz +/- 1.95 KHz, P = 40.90%+/- 1.83%

    comments:
    use lower Vmod to minimize the error bar, at the same time use longer sweeping
    time (slower sweeping) to make sure the system will lock in to the resonance even
    with this low Vmod=0.7V. (I haven't done any test on sweeping time vs. Vmod
    yet, just by assumption this might help).

    Suggest next time take EPR at Vmod 0.75V, sweep/wait time = 8/24 sec
    (though this entry is late due to halog problem)