The ADC gates for each detector stack should be independent of the coincidence trigger timing.
In the case of the LHRS, that should be handled by the retiming module. I recall some concern about whether the retiming overhead would outrun the analog delay in the LHRS. Did the retiming get dropped in the end?
I can't remember how it's handled for BigBite: are the ADCs gated
directly off the L1A? That could be OK since all BB relevant triggers
have BB carrying the L1A timing, but you then need to be careful how the
timing is adjusted. If you shift the the T1 timing in the coincidence,
you'll shift the ADC gates unless you compensate. We know the shower
signals ring sometimes, so the ADC gate timing should really be
independent of the trigger type.
A copy of this log entry has been emailed to: kalyan, moffit