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</style><article id="node-1297056" class="node node-logentry contextual-links-region article ia-n clearfix" role="article"><header class="node-header"><h1 class="node-title">
<a href="https://logbooks.jlab.org/entry/4224009" rel="bookmark">RC daily update and RC meeting</a>
</h1>
</header><div class="contextual-links-wrapper"><ul class="contextual-links"><li><a href="https://logbooks.jlab.org/entry/4224009/edit?destination=email/send">Edit</a></li><li><a href="https://logbooks.jlab.org/entry/4224009/delete?destination=email/send">Delete</a></li></ul></div>
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<p class="author-datetime">
Lognumber <a href="https://logbooks.jlab.org/entry/4224009" class="lognumber" data-lognumber="4224009">4224009</a>. Submitted by <a href="https://logbooks.jlab.org/user/hanjie">hanjie</a> on <time datetime="2023-11-21T09:31:44-0500" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1700573504&end_date=1700580704&book=HCLOG">Tue, 11/21/2023 - 09:31</a></time>. </p>
<p class="last-update">
Last updated on <time datetime="2023-11-21T09:33:24-0500" pubdate="pubdate">Tue, 11/21/2023 - 09:33</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>hanjie</td></tr></table></div>
<div class="logentry node-content">
<p>Hall went into controlled access at 9 am. </p>
<p>Julie and the students went into hall to replace 12 bases: <a href="https://logbooks.jlab.org/entry/4223272">https://logbooks.jlab.org/entry/4223272</a></p>
<p>Magnets polarity were reversed to take positron runs: <a href="https://logbooks.jlab.org/entry/4223306">https://logbooks.jlab.org/entry/4223306</a></p>
<p>Positron runs started at 4:44 pm and completed at 11 pm. At the end of positron runs at LD2 target with 8 uA beam, Iuliia (SL) noticed that the raster was off for about 4 minutes and made the action immediately: <a href="https://logbooks.jlab.org/entry/4223591">https://logbooks.jlab.org/entry/4223591</a>, <a href="https://logbooks.jlab.org/entry/4223643">https://logbooks.jlab.org/entry/4223643</a>. It was because that MCC accidentally turned off the Hall C raster instead of Hall A raster when they tried to do harp scan for Hall A, as the two raster GUI look the same. MCC plan to modify the two GUIs to be different. The target is fine (JP was there). Raster is in Hall C Alarm Handler. Well, we're human beings, we make mistakes (like the RC phone was muted accidentally overnight), and we learn the lessons. Thank Iuliia for saving the target. Thank Julie for answering all the questions that happened midnight. </p>
<p>Magnets polarity is reversed back to production runs while waiting for beam operations re-authorization. Beam is back at 12:40 am. KinC_x36_2'' production cycle 1 is complete early this morning with two special dead time study runs. Currently, we're doing the production cycle 2 of KinC_x36_2'.</p>
<p>Dave Gaskell fixed the HMS Dipole NMR to be locked. The read back shows the dipole is about 0.1% lower than the desired value, which is within the tolerance: <a href="https://logbooks.jlab.org/entry/4223974">https://logbooks.jlab.org/entry/4223974</a></p>
<p>We continue the production cycles for KinC_x36_2',2 until Wednesday morning. </p>
<p>There will be a RC meeting at 11 am: <a href="https://jlab-org.zoomgov.com/j/1617015555?pwd=L09IQ216dml6ZmM5ODExVjFsMX">https://jlab-org.zoomgov.com/j/1617015555?pwd=L09IQ216dml6ZmM5ODExVjFsMX</a>...<br />
Meeting ID: 161 701 5555<br />
Passcode: 288953</p>
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