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User name Bob / Neil
Log entry time 10:46:29 on July 1,2010
Entry number 329264
keyword=L-HRS gate timing check
After some adjustments of timing to arrange for coinc, we double
checked the timing of L-HRS. Here is the VDC T0 for before (fig1)
and after (fig2). They are different by 10 nsec, with cosmics now
earlier, but as Neil pointed out this is expected due to the TOF
for the S2m trigger (roughly expect 2 * 2m / 3e8 m/sec).
So, the timing of the gates have not changed.
I would say, however, that we attempted to look at the gas Cerenkov
gate and it looked like it was 50 nsec or so too early. But if
it was ok before it should be ok now.