<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Dear Annalisa,<div class=""><br class=""></div><div class="">For PCAL/ECAL the raw (uncalibrated) PMT gains need to be renormalized periodically and I prefer to do it in between run periods. This is needed for uniformity of the trigger response. My plan is to change the HV from analysis of the ongoing RG-D 10-file pass0 runs used to make the online timelines. I will use the last 50 or so runs.</div><div class=""><br class=""></div><div class="">If I do this immediately after RG-D ends at 7am I can check it right away with cosmic runs until tuning starts in the afternoon. This will give me an advantage over waiting for the first RG-K calibration runs, since I can use those runs for the final calibration rather than using them for further HV adjustments. </div><div class=""><br class=""></div><div class="">Anyway we can discuss it tomorrow at CALCOM.</div><div class=""><br class=""></div><div class="">Regards,</div><div class="">Cole <br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Dec 14, 2023, at 3:03 PM, Annalisa D'Angelo via Clas12_calcom <<a href="mailto:clas12_calcom@jlab.org" class="">clas12_calcom@jlab.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">
<meta http-equiv="content-type" content="text/html; charset=UTF-8" class="">
<div class=""><p class="">Dear Calibration Team,</p><p class="">we are about to start RG-K and I would kindly ask you to check
for your subsystem:</p>
<ul class="">
<li class="">status = 0 for all channel for runs starting from 19 200 to
infinity</li>
<li class="">what is the status of the calibration constants for the same
run range and make sure it is updated to the latest constant
values in the ccdb.</li>
<li class="">please send me a feedback on the situation.</li>
</ul><p class="">Thank you in advance</p><p class="">All the best</p><p class="">Annalisa<br class="">
</p>
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Prof. Annalisa D'Angelo
Dip. Fisica, Universita' di Roma "Tor Vergata"
Istituto Nazionale di Fisica Nucleare
Sezione di Roma Tor Vergata, Rome Italy
<a class="moz-txt-link-abbreviated" href="mailto:email:annalisa.dangelo@roma2.infn.it">email:annalisa.dangelo@roma2.infn.it</a>
Jefferson Laboratory, Newport News, VA USA
Email: <a class="moz-txt-link-abbreviated" href="mailto:annalisa@jlab.org">annalisa@jlab.org</a>
Tel: + 39 06 72594562
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