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    User name nanda

    Log entry time 04:17:25 on June10,2004

    Entry number 125208

    keyword=compton

    After retune, the electron detector could go into beam position without generating FSD at 7 uA. Background rates were more than 100 kHz/uA. With good quality beam it should be less than 200 Hz/uA

    We scanned beam orbit in horizontal and vertical and tweaked 1c20 quad to minimize background. Background rates improved by a factor 20
    to about 5 kHz/uA. Still too high for compton measurement.