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<article id="node-1474282" class="node node-logentry article ia-n clearfix" role="article">
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<a href="https://logbooks.jlab.org/entry/4401218" rel="bookmark">RC report for 19-Jun-2025</a>
</h1>
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<div class="date-vitals">
<p class="author-datetime">
Lognumber <a href="https://logbooks.jlab.org/entry/4401218" class="lognumber" data-lognumber="4401218">4401218</a>. Submitted by <a href="https://logbooks.jlab.org/user/covrig">covrig</a> on <time datetime="2025-06-19T11:53:39-0400" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1750344819&end_date=1750352019&book=HALOG">Thu, 06/19/2025 - 11:53</a></time>. </p>
<table class="field-vitals">
<tr><th>Logbooks: </th><td><a href="https://logbooks.jlab.org/book/halog">HALOG</a></td></tr>
<tr><th>Entry Makers: </th><td>covrig</td></tr>
</table>
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<div class="logentry node-content">
<p>Due to the holiday there will not be a daily 1pm RC meeting today. If you have any issues or concerns regarding the run plan, please call the RC phone.</p>
<p>Key updates for the last 24 h:<br />
Beam back from beam studies around 12:50 yesterday, cross check, beam raster and positions checked fine, went to production<br />
Machine was down for about 2h, during Swing, due to 2 cavities dropping out of HV (2L18 and 1L06, 2L18 was bypassed)<br />
8h run-plan with HCAL threshold at 10% and ECAL at 70%, beam current 15 µA completed Swing-Owl<br />
GEM baseline studies during Swing, baseline adjusted from 400-500 ADC ch to 800-900 ADC ch, summary in <a href="https://logbook.jlab.org/entry/44090882">https://logbook.jlab.org/entry/44090882</a><br />
Since run 4770, 6:30am today, we are running at 22 µA beam current with HCAL at 20% and ECAL at 70% and new GEM baseline, the plan is to stay here until further notice<br />
Total Accumulated Charge at Kin3 so far: 25.82 C (Goal: 100 C)<br />
Total Accumulated Charge at Kin3 since June 18 Swing: 0.9 C</p>
<p>Run plan: Production on 30 cm LH2 cell at 22 uA with the current settings for GEMs, ECAL and HCAL</p>
<p>Shift summaries:<br />
18-Jun-2025 D <a href="https://logbooks.jlab.org/entry/4400380">https://logbooks.jlab.org/entry/4400380</a><br />
18-Jun-2025 S <a href="https://logbooks.jlab.org/entry/4400629">https://logbooks.jlab.org/entry/4400629</a><br />
19-Jun-2025 O <a href="https://logbooks.jlab.org/entry/4400873">https://logbooks.jlab.org/entry/4400873</a></p>
<p>Shift BTA:<br />
18-Jun-2025 D <a href="https://logbooks.jlab.org/entry/4400609">https://logbooks.jlab.org/entry/4400609</a><br />
18-Jun-2025 S <a href="https://logbooks.jlab.org/entry/4400869">https://logbooks.jlab.org/entry/4400869</a><br />
19-Jun-2025 O <a href="https://logbooks.jlab.org/entry/4401133">https://logbooks.jlab.org/entry/4401133</a></p>
<p>Kind Regards,</p>
<p>Silviu<br />
RC phone 757-876-1787</p>
</div>
<div class="attachment-box">
<div class="image-wrapper"><img view_mode="elog_email" class="image-style-plentybig" src="https://logbooks.jlab.org/files/styles/plentybig/public/2025/06/4401218/GEp5_24hBeamPlot_1819Jun2025.jpg" width="960" height="412" alt="" title="24h beam current and target heater plot" /></div> </div>
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