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    User name Armstrong

    Log entry time 21:49:17 on June22,2001

    Entry number 64182

    Followups:

    keyword=charge asymmetry

    The charge asymmetry continues to wander around a great deal - we see (smooth)
    changes of 800 ppm over 15 minutes (with rotatable 1/2 plate at a constant value).
    There must be thermal or other effects happening at the source. One can keep
    oneself amused by trying to chase it by hand, or one can turn on the feedback
    and hope that it averages out over an hour-long run...