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    User name Jin Huang

    Log entry time 23:06:23 on February15,2009

    Entry number 261371

    This entry is a followup to: 261304


    keyword=Software sum of total sum 19 is OK

    Fig1 : Softsum 18 (shower + 2*preshower, before ped subtraction)
    Fig2 : Softwum 19 (same)

    They looks similar. And all sum signal on the trigger discriminator is checked with oscillator to be OK too. Therefore, the hole on sum19 is more likely a missing ADC signal; and it's not likely to affect main data quality.

    FIGURE 1

    FIGURE 2