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

    User name M. Cummings

    Log entry time 14:12:23 on March 21, 2012

    Entry number 367237

    keyword=Timing of T2

    Continuing the saga of the T2 trigger...
    
    Last night Ryan and I checked the timing again for T2. We found that the
    GC "or" was coming after the strobe signal.  The GC logic signal was
    going through a programmable delay module before going to the MLU.  We
    removed most of the delay from the GC signal, so that it would come ~14ns
    before the strobe.
    
    After communicating with Bob, he suggested that the logic signals should
    come at least 20ns before the strobe.  This afternoon I removed the rest
    of the delay from the GC logic signal (by bypassing the delay module
    altogether) so that the GC signal now comes ~40ns before the strobe.
    
    We will continue to monitor the T2 rate when we get beam again.
    


    A copy of this log entry has been emailed to: rbziel, vasulk, camsonne, rom, melissac