[Halld-cpp] monitoring ver13

[Sean Dobbs]

Hi Beni,

Thanks for checking these.  This difference seems to be due to
something in the FCAL - in the attached plots, I've broken out the
picket fence plots for the TOF, FCAL, and FCAL+BCAL triggers for run
101606.  So this is something to look into deeper.

I'll note that these are empty target runs, so I don't know how often
we should get the RF in the "nominal" bucket for events generated
downstream of the target where we might not know the real vertex
location.  But it is suspicious that it seems to be driven by one
detector.

Also note that there are several runs with timing shifted by ~2 ns in
the FCAL, though this is not one of them.

Cheers,
Sean

On Tue, May 9, 2023 at 10:43 AM Beni Zihlmann <zihlmann at jlab.org> wrote:
>
> Hi Sean,
>
> the ver13 monitoring for the CPP/NPP run period looks much better now
> regarding the timing of the
> tagger and PS for all the runs in the plot browser up to run 101587.
> Above that run number all runs
> in the tagger, both mic and hod, show a "double-peak" structure in the
> picket fence with the exception
> of maybe run 101599 where the "double-peak" is much less prominent.
> The PS timing vs. tagger hodoscope also looks good.
>
> cheers,
> Beni
>
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