[Halla_running] [EXTERNAL] Fwd: [HallA_calorimeter (HCAL+BBCAL)] [New Logentry] Follow-up Re: 50k replay plots for run 3005

[Alexandre Camsonne]

---------- Forwarded message ---------
From: jpoudel--- via Hall_A_Calorimeter <hall_a_calorimeter at jlab.org>
Date: Sat, Dec 3, 2022, 9:55 PM
Subject: [HallA_calorimeter (HCAL+BBCAL)] [New Logentry] Follow-up Re: 50k
replay plots for run 3005
To: <hall_a_calorimeter at jlab.org>


Follow-up Re: 50k replay plots for run 3005
<https://logbooks.jlab.org/entry/4095193>

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Lognumber 4095193 <https://logbooks.jlab.org/entry/4095193>. Submitted by
jpoudel <https://logbooks.jlab.org/user/jpoudel> on Sat, 12/03/2022 - 21:52
<https://logbooks.jlab.org/entries?start_date=1670118754&end_date=1670125954&book=HAHCAL&book=HALOG>.

Logbooks: HAHCAL <https://logbooks.jlab.org/book/hahcal> HALOG
<https://logbooks.jlab.org/book/halog>
Entry Makers: jpoudel
References: 4094652 - 50k replay plots for run 3005
<https://logbooks.jlab.org/entry/4094652>

It seems two f1TDC modules have some issues during this run based on the
attached plot. We are still trying to understand the cause of time shifts
in f1TDC 1 and 4 in this run. I already informed Alexandre and Bryan
regarding this issue, so we might get detailed information of the cause
later.

I replayed 100k events of run 3005 in this afternoon again to see if it is
due to older version of SBSOFFLINE or not. I found that the plots were
similar to 50k plots, so I could confirm that the distortion of HCal TDC
plots were not due to replay software.

For now, if we find 50k hcal plots as in run 3005 again, please END the run
and restart the DAQ. If issue persists, please inform HCAL experts
immediately. We might need to reboot the crate.
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