User name Moffit
Log entry time 00:48:20 on April 2,2008
Entry number 229455
keyword=Coincidence window looks narrow.I'm not sure what happened, but the coincidence window (width of T3 before AND'd with T1 or T2) appears to have shrank down to 20ns. I've shown this in the attached plot from run 2109 (LH2). I saw the same width in other runs from that night.
CAMAC read commands to the module taking care of the width are returning 0.
The peaks in the plot are from self-timing (at 0)... then two peaks from T5.
FIGURE 1
