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    User name V. Sulkosky

    Log entry time 16:07:48 on March 09, 2011

    Entry number 351145

    keyword=T7 Trigger details

    Today Igor and I formed the T7 HAND+LHRS coincidence trigger.  The HAND
    singles window was set to 156 ns with the T3 signal coming about 80 ns
    inside the window for a 450 MeV/c neutron in HAND.  With this setup,
    the simulated EDTM ADC signal arrived about 148 ns after the gate, which
    is 400 ns wide.  The simulated TDC signal arrived about 400 ns before
    the common stop.  I believe the EDTM setup is fairly reliable from my
    experience during N-Delta.  So I would expect the real neutron signals
    to come close to the EDTM within +/- 20 ns or about 400 +/- 20 ns from
    the common stop.
    
    We also checked this setup for cosmic events and the cosmics from HAND
    arrived about 200 ns after the gate for the ADC.  Hence this setting 
    should
    work for both production and cosmic ray tests.
    


    A copy of this log entry has been emailed to: doug,zhanxh,igorko,nmuangma,orchen,eip