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    User name X. Jiang

    Log entry time 17:36:45 on January19,2001

    Entry number 55184

    keyword=noticed zero hits events on VDC

    I took a look at the right arm trigger-1 events in run 1516.
    The attached plots are the number of VDC hits on each plane.
    The events are required to have a good gas cherenkov signal and
    a good aeroal signal. The cuts are:

    Still, there're a lot of events which do not have VDC

    Noticed that the lead_glass energy in a cluster
    might be calculated in a way that a good tracking quality
    was assumed. Do we have a raw lead glass sum on each
    layer ?

    FIGURE 1