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    User name R. Michaels

    Log entry time 18:32:11 on November 25, 2009

    Entry number 302587

    This entry is a followup to: 302581

    keyword=re: FADC

    I did not recompile anything.

    Note, the FADC is controlled with a line
    use_sis3320=0 or =1
    in sfi2.crl and sfi4.crl for ROC2 (R-HRS) and ROC4 (L-HRS).

    Any DAQ expert can figure it out.

    The FADC is used to study electronics deadtime in the PVDIS trigger.
    If the studies are not in an active phase the FADC may be turned off,
    otherwise they may be left on. The HRS DAQ deadtime (displayed by
    datamon) is not of huge concern. Simply prescale heavily until the
    rate is ~100 Hz and the DT is small. If the FADC is off the rates
    become normal.