<div dir="auto"></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">---------- Forwarded message ---------<br>From: <strong class="gmail_sendername" dir="auto">jpoudel--- via Hall_A_Calorimeter</strong> <span dir="auto"><<a href="mailto:hall_a_calorimeter@jlab.org">hall_a_calorimeter@jlab.org</a>></span><br>Date: Sat, Dec 3, 2022, 9:55 PM<br>Subject: [HallA_calorimeter (HCAL+BBCAL)] [New Logentry] Follow-up Re: 50k replay plots for run 3005<br>To: <<a href="mailto:hall_a_calorimeter@jlab.org">hall_a_calorimeter@jlab.org</a>><br></div><br><br>
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<a href="https://logbooks.jlab.org/entry/4095193" rel="bookmark noreferrer" target="_blank">Follow-up Re: 50k replay plots for run 3005</a>
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Lognumber <a href="https://logbooks.jlab.org/entry/4095193" target="_blank" rel="noreferrer">4095193</a>. Submitted by <a href="https://logbooks.jlab.org/user/jpoudel" target="_blank" rel="noreferrer">jpoudel</a> on <a href="https://logbooks.jlab.org/entries?start_date=1670118754&end_date=1670125954&book=HAHCAL&book=HALOG" target="_blank" rel="noreferrer">Sat, 12/03/2022 - 21:52</a>. </p>
<table><tr><th>Logbooks: </th><td><a href="https://logbooks.jlab.org/book/hahcal" target="_blank" rel="noreferrer">HAHCAL</a> <a href="https://logbooks.jlab.org/book/halog" target="_blank" rel="noreferrer">HALOG</a></td></tr><tr><th>Entry Makers: </th><td>jpoudel</td></tr><tr><th>References: </th><td><a href="https://logbooks.jlab.org/entry/4094652" target="_blank" rel="noreferrer">4094652 - 50k replay plots for run 3005</a></td></tr></table></div>
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<p>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.</p>
<p>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.</p>
<p>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.</p>
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<div><img src="https://logbooks.jlab.org/files/styles/plentybig/public/2022/12/4095193/run_3005_HCal_TDC.jpg" width="960" height="599" alt="" title="HCAL TDC distribution of run 3005 showing timing shifts in some modules"></div> </div>
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