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    User name Ramesh/Diancheng

    Log entry time 17:40:49 on November 01, 2009

    Entry number 297111

    This entry is a followup to: 297110

    keyword=Left HRS S1 PMTs are after-pulsing

    Diancheng and I checked all left HRS S1 PMT's signals on the scope at the
    time scale factor of 500 ns and found many PMT's having afterpulsing. We
    have photographs of each PMT's observation and will post after we copy
    the photos into our computers. Here is the observation:

    Left HRS S1 PMTs Left Side:

    Top: big afterpulsing
    2nd from top: big afterpulsing
    3rd from top: no afterpulsing
    4th from top: big afterpulsing
    5th from top: no afterpulsing
    bottom: big afterpulsing

    Right HRS S1 PMTs Right Side:

    Top: big afterpulsing
    2nd from top: small afterpulsing
    3rd from top: no afterpulsing
    4th from top: no afterpulsing
    5th from top: no afterpulsing
    bottom: small afterpulsing




    A copy of this log entry has been emailed to: bogdanw,reimer,xiaochao,rom