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    User name A. Camsonne

    Log entry time 23:17:44 on June 16, 2007

    Entry number 205695

    This entry is a followup to: 205662

    keyword=Dead time looks fine now

    Dead time had indeed unusually high values.
    It seems thing got fixed after the TS11 reboot.

    I made a quick cosmics run run 1293 during traget change : offline
    analysis with Normana :
    Trigger Prescale Num evt Num in Livetime
    --- Factor CODA file Scalers
    1 1 13660 15322 0.891529
    2 2 9069 19860 0.913293
    3 1 11201 12641 0.886085
    4 200 9051 1978555 0.91491
    5 1 167 193 0.865285
    6 65535 0 327 0
    7 65535 0 379 0
    8 100 469 51998 0.901958
    9 1 0 0 0
    10 1 0 0 0
    11 1 0 0 0
    12 1 0 0 0

    Number of events = 43262
    Run-averaged livetime from scalers = 0.899179
    Correction for non-synch of scalers = 1

    give coherent results.
    So deadtime calculation is reasonable.