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[Tonko Ljubicic <tonko AT bnl.gov>]

Hello,

what I think we should do is make _sure_ we are
seeing the correct trigger crossing. Looking at the
timebin plots (where the x-axis is the timebin, 0 to 9)
I'm not sure we do. We see 2 peaks which I don't
understand at all.

First, we should make the ZS data used in the plot
more stringent, with a higher N-sigma cut so that
we think it is an actual particle and not just noise.
For this exercise I would even exaggerate a bit,
e.g. 6 sigma.

Secondly, we should do a quick scan of the global
APV latency-from-trigger (there is such a register,
can't remember the actual name) by moving it in
e.g. 100ns steps or so. Where does the current
setting come from, BTW? Gerard?

I picked up a Cosmics run with IST from 2015
and you can find the same plot attached. Note the
peak.

           -- Tonko

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