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<article id="node-1471535" class="node node-logentry article ia-n clearfix" role="article">
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<a href="https://logbooks.jlab.org/entry/4398471" rel="bookmark">RC Report June 15</a>
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<p class="author-datetime">
Lognumber <a href="https://logbooks.jlab.org/entry/4398471" class="lognumber" data-lognumber="4398471">4398471</a>. Submitted by <a href="https://logbooks.jlab.org/user/gayoso">gayoso</a> on <time datetime="2025-06-15T14:16:35-0400" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1750007795&end_date=1750014995&book=HCLOG">Sun, 06/15/2025 - 14:16</a></time>. </p>
<table class="field-vitals">
<tr><th>Logbooks: </th><td><a href="https://logbooks.jlab.org/book/hclog">HCLOG</a></td></tr>
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<p>"Happy Father's day"<br />
Your humble RC</p>
<p>although the whole Saturday and Sunday night has been one of the best production period, at the moment of this report, HMS Q3 He level went to 0 and interlock. The shift crew called me and notify that the level went back to 85% and the interlock was solved. The crew wrote a logentry notifying Jamie, Ellen and Heidi. Minutes later Heide call me to notify that there is a leak in HMS Q3 so He level went back to 0 and asked the shift crew to switch off HMS magnets (ramp down), and Jamie was on his way to the Campus. Following instructions, the shift crew ramp down the magnets, with the exception of HMS dipole, which was unable to be ramped down. I looked like a communication issue, but there was no evidence of such. At the end, the dipole interlocked. Jamie tried to solve it, but there was no response. Meanwhile Jamie was in the Hall, I called Ellen to notify the issue.<br />
Right now, Jamie and Heide are in the Campus. Most probably, we will run single arm until Tuesday. </p>
<p>SHIFT SUMMARIES:<br />
DAY -> <a href="https://logbooks.jlab.org/entry/4397520">https://logbooks.jlab.org/entry/4397520</a><br />
SWING -> <a href="https://logbooks.jlab.org/entry/4397520">https://logbooks.jlab.org/entry/4397520</a><br />
OWL -> <a href="https://logbooks.jlab.org/entry/4398223">https://logbooks.jlab.org/entry/4398223</a></p>
<p>RUN PLAN:<br />
- production (maybe single arm?</p>
<p>FUTURE WORK IN THE HALL:<br />
- Next Tuesday, Accelerator has planned Beam Studies (that's the plan at the moment). Hall A will be used for that purpose. Thus, according to the several plans on the table, Hall C will move to Restricted Access. RadCon was given a head-up on Friday, today it was reminded at the RC meeting, and will be requested on Monday.<br />
-> Technicians will make use of a spider crane to repair a N2 valve which is leaking.<br />
-> Holly will work on the GEMs<br />
-> Ellen will address the HMS Dipole NMR issue (not clear the problem yet)<br />
-> At the moment of this report nothing has been notified officially, but most probable, address HMS issues.</p>
<p>Let me know if you have plans for more work at the hall.</p>
<p>-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-</p>
<p>No RC meeting.</p>
<p>Fun Fact of the Day:<br />
did you know... Mount Vesuvius buried people so quickly... their brains turned to glass!</p>
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