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<article id="node-1477013" class="node node-logentry article ia-n clearfix" role="article">
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<a href="https://logbooks.jlab.org/entry/4403949" rel="bookmark">Hall C, RC Report, Tuesday June 23, 2025</a>
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<p class="author-datetime">
Lognumber <a href="https://logbooks.jlab.org/entry/4403949" class="lognumber" data-lognumber="4403949">4403949</a>. Submitted by <a href="https://logbooks.jlab.org/user/hdbhatt">hdbhatt</a> on <time datetime="2025-06-23T10:37:53-0400" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1750685873&end_date=1750693073&book=HCLOG">Mon, 06/23/2025 - 10:37</a></time>. </p>
<p class="last-update">
Last updated on <time datetime="2025-06-23T10:39:21-0400" pubdate="pubdate">Mon, 06/23/2025 - 10:39</time> </p>
<table class="field-vitals">
<tr><th>Logbooks: </th><td><a href="https://logbooks.jlab.org/book/hclog">HCLOG</a></td></tr>
<tr><th>Entry Makers: </th><td>hdbhatt</td></tr>
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<div class="logentry node-content">
<p>During the last 24 hours, we collected data for approximately 16.7 hrs : 4.22 hrs, 6.15 hrs, and 6.40 hrs during Day, Swing, and Owl shifts, respectively.</p>
<p>Yesterday, during the day shift, the accelerator was down from 9:20 am to 12:06 pm due to RF related issues. The beam was relatively stable during the Swing and Owl shifts.</p>
<p>There were three events of DAQ crashes during last 24 hours and were resolved by simple reset.<br />
12:15 pm <a href="https://logbooks.jlab.org/entry/4403336">https://logbooks.jlab.org/entry/4403336</a>, one around 8:51 pm and another this morning 7:35 am the DAQ was frozen <a href="https://logbooks.jlab.org/entry/4403856">https://logbooks.jlab.org/entry/4403856</a>. The shift crew continued data taking by opening a new DAQ, but the frozen DAQ was left there. During the beam down time Hanjie cleared the frozen DAQ <a href="https://logbooks.jlab.org/entry/4403913">https://logbooks.jlab.org/entry/4403913</a>. </p>
<p>This morning accelerator was down starting 8:20 am and beam is expected to be restored soon.</p>
<p>There will be no "maintenance day" this week, however, there will be RF recovery and Beam studies during the Day Shift on coming Wednesday, June 25. Please let me know if there is any work in the Hall. We may be able to use the downtime for that purpose.</p>
<p>Run Plan:<br />
We will continue data taking in the same configuration and will take two single arm runs, 10 minute each, during the swing shift with:<br />
1) ps1= 0 and rest = -1<br />
2) ps3 = 0 and rest = -1</p>
<p>Many thanks to our shift crews for their hard work. There are still many open shift slots, with an immediate need for Shift Leaders on Thursday (Day Shift), Friday (Owl Shift), and both SL and TO on Saturday (Owl Shift). Please consider signing up if you can. The shift sign up link is:</p>
<p><a href="https://misportal.jlab.org/mis/physics/shiftSchedule/index.cfm?experimentRunId=HALLC-LAD">https://misportal.jlab.org/mis/physics/shiftSchedule/index.cfm?experimen...</a></p>
<p>There will be an in-person RC meeting at 2:30 pm at CH conference room and via zoom.<br />
Zoom info: <a href="https://hallcweb.jlab.org/wiki/index.php?title=June_23,_2025">https://hallcweb.jlab.org/wiki/index.php?title=June_23,_2025</a></p>
<p>==============</p>
<p>Day Shift, June 22<br />
Summary: <a href="https://logbooks.jlab.org/entry/4403236">https://logbooks.jlab.org/entry/4403236</a><br />
Checklist: <a href="https://logbooks.jlab.org/entry/4403348">https://logbooks.jlab.org/entry/4403348</a><br />
BTA: <a href="https://logbooks.jlab.org/entry/4403424">https://logbooks.jlab.org/entry/4403424</a><br />
Target Status: <a href="https://logbooks.jlab.org/entry/4403350">https://logbooks.jlab.org/entry/4403350</a><br />
Magnet Screenshots: <a href="https://logbooks.jlab.org/entry/4403347">https://logbooks.jlab.org/entry/4403347</a></p>
<p>Swing Shift, June 22<br />
Summary: <a href="https://logbooks.jlab.org/entry/4403427">https://logbooks.jlab.org/entry/4403427</a><br />
Checklist: <a href="https://logbooks.jlab.org/entry/4403556">https://logbooks.jlab.org/entry/4403556</a><br />
BTA: <a href="https://logbooks.jlab.org/entry/4403630">https://logbooks.jlab.org/entry/4403630</a><br />
Target Status: <a href="https://logbooks.jlab.org/entry/4403442">https://logbooks.jlab.org/entry/4403442</a><br />
Magnet Screenshots: <a href="https://logbooks.jlab.org/entry/4403442">https://logbooks.jlab.org/entry/4403442</a></p>
<p>Owl Shift, June 23<br />
Summary: <a href="https://logbooks.jlab.org/entry/4403636">https://logbooks.jlab.org/entry/4403636</a><br />
Checklist: <a href="https://logbooks.jlab.org/entry/4403801">https://logbooks.jlab.org/entry/4403801</a><br />
BTA: <a href="https://logbooks.jlab.org/entry/4403869">https://logbooks.jlab.org/entry/4403869</a><br />
Target Status: <a href="https://logbooks.jlab.org/entry/4403646">https://logbooks.jlab.org/entry/4403646</a><br />
Magnet Screenshots: <a href="https://logbooks.jlab.org/entry/4403779">https://logbooks.jlab.org/entry/4403779</a></p>
<p>=======================================<br />
RC Report: June 18, 2025: <a href="https://logbooks.jlab.org/entry/4400382">https://logbooks.jlab.org/entry/4400382</a><br />
RC Report: June 19, 2025: <a href="https://logbooks.jlab.org/entry/4401192">https://logbooks.jlab.org/entry/4401192</a><br />
RC Report: June 20, 2025: <a href="https://logbooks.jlab.org/entry/4401859">https://logbooks.jlab.org/entry/4401859</a><br />
RC Report: June 21, 2025: <a href="https://logbooks.jlab.org/entry/4402574">https://logbooks.jlab.org/entry/4402574</a><br />
RC Report: June 22, 2025: <a href="https://logbooks.jlab.org/entry/4403272">https://logbooks.jlab.org/entry/4403272</a></p>
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