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    User name jpchen

    Log entry time 12:59:49 on January 6,2003

    Entry number 90577

    keyword=BCM offset problem fixed

    There was a problem of BCM offset more trhan 0.2 microA (cavity readout noise
    was about 3 mV for both upstream and down stream). Arun contacted John Musson.
    John fixed the problem: the signal shield was initiallyconnected to the Guard and by
    switching it to Ground, the noise reduced to about 0.2 mV and BCM reading is now
    0.015 microA.