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    User name R. Michaels

    Log entry time 04:48:12 on January31,2008

    Entry number 228247

    keyword=10 Hz stack trigger run, 1 cm det.

    "Production" run on 1 cm thin detector.

    Using 8 uA beam current, this gives 10 Hz trigger rate
    on the stack detector (T4).

    S0 is moved out of the way.

    Run 3704 is a "long" run to check resolution, etc.
    However there are long periods of no beam.

    Raw trigger rates
    T1 = 860 Hz
    T2 = 200 Hz
    T3 = 0
    T4 = 10 Hz

    Prescale factors (somewhat random)
    PS1 = 10000
    PS2 = 99999
    PS3 = 9999
    PS4 = 1

    The online pulse height spectrum is in fig 1.

    Next: Access to swap to 0.5 cm thin detector.


    FIGURE 1