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    User name V. Sulkosky

    Log entry time 15:26:10 on December 08, 2008

    Entry number 252557

    This entry is a followup to: 252534

    keyword=Re: VDC Efficiency for Run 4285

    I looked closer at the VDC efficiencies for run 4285 by replaying the
    entire run. Figure 1 shows the results for the four planes of the VDC.
    It looks like for the most part the efficiencies remained high for the VDC.
    However, there was about a 3% drop on the edge (lower wire number) of the
    V2 plane. There also might have been a small drop on the same edge of
    the U2 plane. But there are no major changes for the U1 or V1 planes.

    So except for the edge, the VDC seems to have good efficiency for run
    4285.

    A copy of this log entry has been emailed to: jiang,xqian,ycwang



    Figure 1