<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></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="">The new PCAL/ECIN/ECOU timing residual timelines (PCAL below) show run dependent excursions from zero at run points that correspond to beam energy change and other incidents of RF adjustments (I assume). The excursions are on the order of 50-70 ps (similar to those seen in CND below), which is well below the average timing resolution for e- of 300-350 ps for PCAL All other timelines are within reasonable QA limits.</div><div class=""><br class=""></div><div class="">Cole</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><img apple-inline="yes" id="A26BE434-2E52-4634-A358-F688D123DE06" width="744" height="244" src="cid:7769E082-2E82-45C8-A76F-6460F77D33EE" class=""></div><div class=""><br class=""></div><div class=""><img apple-inline="yes" id="C0F68888-3DE9-4246-8E79-036D978A9E4C" width="744" height="206" src="cid:287BAE70-F8D4-451C-A0A2-F405DE7E582E" class=""></div><div class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Jul 18, 2023, at 2:45 PM, Annalisa D'Angelo <<a href="mailto:annalisa.dangelo@roma2.infn.it" class="">annalisa.dangelo@roma2.infn.it</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" class="">
<div class="">
Dear CLAS12 detector subsystems Calibrators Group Leaders,
<p class="">RG-K is at the end of the pass2 calibration procedure.<br class="">
</p><p class="">You can find the latest RGK timelines at: <br class="">
</p><p class=""><a moz-do-not-send="true" href="https://clas12mon.jlab.org/rgk/pass0/v0.27/tlsummary/" class="moz-txt-link-freetext">https://clas12mon.jlab.org/rgk/pass0/v0.27/tlsummary/</a></p><p class=""><a moz-do-not-send="true" href="https://clas12mon.jlab.org/rgk/pass0/v0.27_qa/tlsummary/" class="moz-txt-link-freetext">https://clas12mon.jlab.org/rgk/pass0/v0.27_qa/tlsummary/</a><br class="">
</p><p class="">Please take a look at the obtained timelines, to validate the
quality of the calibration.</p><p class="">Should all of you be satisfied with the present results we could
assess the latest pass0 as the "final" one and proceed with the
Pass2 cooking review.</p><p class="">Please reply to my message at your earliest convenience.</p><p class="">For your info, the following table contains a description of the
different data taking conditions:</p>
<table width="712" height="462" cellspacing="2" cellpadding="2" border="1" class="">
<tbody class="">
<tr class="">
<td width="10" valign="top" class="">Epoch<br class="">
</td>
<td width="20" valign="top" class="">Beam Energy (GeV)<br class="">
</td>
<td width="25" valign="top" class="">Run Range<br class="">
</td>
<td width="35" valign="top" class="">Beam Current<br class="">
nA<br class="">
</td>
<td width="35" valign="top" class="">Trigger<br class="">
</td>
<td valign="top" class="">Comment<br class="">
</td>
</tr>
<tr class="">
<td width="10" valign="top" class="">L1<br class="">
</td>
<td valign="top" class="">7.546<br class="">
</td>
<td valign="top" class="">5674-5684<br class="">
</td>
<td valign="top" class="">10,20,30,45<br class="">
</td>
<td valign="top" class="">V0<br class="">
</td>
<td valign="top" nowrap="nowrap" class="">Trigger Test & Lumi Scan<br class="">
</td>
</tr>
<tr class="">
<td width="10" valign="top" class="">L2<br class="">
</td>
<td valign="top" class="">7.546</td>
<td valign="top" class="">5689-5693<br class="">
</td>
<td valign="top" class="">5,20,30,40,50<br class="">
</td>
<td valign="top" class="">V2<br class="">
</td>
<td valign="top" class="">Lumi Scan<br class="">
</td>
</tr>
<tr class="">
<td width="10" valign="top" class="">P1<br class="">
</td>
<td valign="top" class="">7.546</td>
<td valign="top" class="">5694-5753</td>
<td valign="top" class="">35<br class="">
</td>
<td valign="top" class="">V2<br class="">
</td>
<td valign="top" class="">Production<br class="">
</td>
</tr>
<tr class="">
<td width="10" valign="top" class="">P2<br class="">
</td>
<td valign="top" class="">7.546<br class="">
</td>
<td valign="top" class="">5758-5870<br class="">
</td>
<td valign="top" class="">45<br class="">
</td>
<td valign="top" class="">V4<br class="">
</td>
<td valign="top" class="">Production<br class="">
</td>
</tr>
<tr class="">
<td width="10" valign="top" class="">L3<br class="">
</td>
<td valign="top" class="">7.546<br class="">
</td>
<td valign="top" class="">5768-5769<br class="">
</td>
<td valign="top" class="">5<br class="">
</td>
<td valign="top" class="">V4<br class="">
</td>
<td valign="top" class="">Low Luminosity<br class="">
</td>
</tr>
<tr class="">
<td width="10" valign="top" class="">E1<br class="">
</td>
<td valign="top" class="">7.546<br class="">
</td>
<td valign="top" class="">5749<br class="">
</td>
<td valign="top" class="">150<br class="">
</td>
<td valign="top" class="">V2<br class="">
</td>
<td valign="top" class="">Empty Target<br class="">
</td>
</tr>
<tr class="">
<td valign="top" class=""><br class="">
</td>
<td valign="top" class=""><br class="">
</td>
<td valign="top" class=""><br class="">
</td>
<td valign="top" class=""><br class="">
</td>
<td valign="top" class=""><br class="">
</td>
<td valign="top" class=""><br class="">
</td>
</tr>
<tr class="">
<td valign="top" class="">L4<br class="">
</td>
<td valign="top" class="">6.535<br class="">
</td>
<td valign="top" class="">5875-5885</td>
<td valign="top" class="">7,10,35,75</td>
<td valign="top" class="">V6<br class="">
</td>
<td valign="top" class="">Trigger test&Lumi scan</td>
</tr>
<tr class="">
<td valign="top" class="">P3<br class="">
</td>
<td valign="top" class="">6.535</td>
<td valign="top" class="">5886-5972</td>
<td valign="top" class="">60<br class="">
</td>
<td valign="top" class="">V6<br class="">
</td>
<td valign="top" class="">Production<br class="">
</td>
</tr>
<tr class="">
<td valign="top" class="">P4<br class="">
</td>
<td valign="top" class="">6.535</td>
<td valign="top" class="">5975-5985</td>
<td valign="top" class="">35<br class="">
</td>
<td valign="top" class="">V6-300MeV/200MeV</td>
<td valign="top" class="">½ Lumi Production</td>
</tr>
<tr class="">
<td valign="top" class="">L5<br class="">
</td>
<td valign="top" class="">6.535</td>
<td valign="top" class="">5986-5990</td>
<td valign="top" class="">5<br class="">
</td>
<td valign="top" class="">V6-150MeV</td>
<td valign="top" class="">Low Luminosity</td>
</tr>
<tr class="">
<td valign="top" class="">L6<br class="">
</td>
<td valign="top" class="">6.535</td>
<td valign="top" class="">5991-5994</td>
<td valign="top" class="">10,35,60,75</td>
<td valign="top" nowrap="nowrap" class="">V6-300MeV-random 30Hz</td>
<td valign="top" class="">Lumi scan&random trg</td>
</tr>
<tr class="">
<td valign="top" class="">E2<br class="">
</td>
<td valign="top" class="">6.535</td>
<td valign="top" class="">5995<br class="">
</td>
<td valign="top" class="">150<br class="">
</td>
<td valign="top" class="">V6-150MeV</td>
<td valign="top" class="">Empty Target<br class="">
</td>
</tr>
<tr class="">
<td valign="top" class="">T<br class="">
</td>
<td valign="top" class="">6.535</td>
<td valign="top" class="">5996-6000<br class="">
</td>
<td valign="top" class="">35<br class="">
</td>
<td valign="top" class="">V6-150MeV</td>
<td valign="top" class="">½ Torus Field</td>
</tr>
</tbody>
</table><p class="">All the best</p><p class="">Annalisa<br class="">
</p>
<pre class="moz-signature" cols="72">--
================================================
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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