• Main INDEX
  • Monthly INDEX
  • PREV
  • NEXT
    Make New Entry, Make Followup Entry

    User name Ramesh/Diancheng

    Log entry time 20:14:27 on November 01, 2009

    Entry number 297117

    Followups:

    keyword=DAQ work

    Left HRS:

    Overnight cosmic run 25164 is underway. We did not see any problems with
    the signals with the pion rejector1 PMTs #18, 28 and 33. These were the
    PMTs that Vince had reported either having wide pedestal/or noisy or
    something else; while checking on the scope, they show nice signals. As
    reported on the earlier halog entry 297111, various S1 PMTS appear to
    have frequent afterpulsing. (Online scaler display is also functional to
    see S1, S2, and gas-cerenkov signals.) DAQ point of view, we do not have
    any todo list for LHRS except for troubleshooting various channels we may
    find when we analyze long cosmic runs.

    Right HRS:

    T1 (formed from S1 & S2 of rhrs) and T8 (1024 Hz clock) are ready and we
    can take cosmic runs to check S1 and S2 PMT's signals. Online scaler
    display is also functional to see S1 and S2 signals.