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    User name R. Michaels

    Log entry time 00:29:41 on February 4,2002

    Entry number 81677

    keyword=VDC efficiency

    VDC efficiency for run 2028 which started at about 22:30.
    Crude fits of global efficiency
    plane 1 98% (pretty good !)
    plane 2 75%
    plane 3 54% (but very uneven)
    plane 4 49%
    We were asked to wait until these reach 90% before taking data with beam.
    We are monitoring the recovery of VDC's.


    FIGURE 1