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    User name xqian

    Log entry time 13:47:39 on November 21, 2008

    Entry number 250198

    This entry is a followup to: 250197

    keyword=What I plotted is a preshower ADC

    The gas cerenkov TDC cut can help to reduce the pions in the preshower.

    They are ADC spectrum of the Preshower.