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</style><article id="node-1329660" 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/4256612" rel="bookmark">RC update, Feb. 25, 2024</a>
</h1>
</header><div class="contextual-links-wrapper"><ul class="contextual-links"><li><a href="https://logbooks.jlab.org/entry/4256612/edit?destination=email/send">Edit</a></li><li><a href="https://logbooks.jlab.org/entry/4256612/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/4256612" class="lognumber" data-lognumber="4256612">4256612</a>. Submitted by <a href="https://logbooks.jlab.org/user/sanghwa">sanghwa</a> on <time datetime="2024-02-25T09:51:09-0500" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1708869069&end_date=1708876269&book=HCLOG">Sun, 02/25/2024 - 09:51</a></time>. </p>
<table class="field-vitals"><tr><th>Logbooks: </th><td><a href="https://logbooks.jlab.org/book/hclog">HCLOG</a></td></tr></table></div>
<div class="logentry node-content">
<p>Yesterday we had the magnet trips due to LCW fault around 1:30pm (<a href="https://logbooks.jlab.org/entry/4256289">https://logbooks.jlab.org/entry/4256289</a>). After LCW was returned to the halls, we took an escorted access to locally reset the Q1 interlock (Joe). Also, Larry moved the calorimeter to 6m during the access. We were able to get all the magnets back up and brought the hall to the beam permit around 6:30pm.<br />
The accelerator went down shortly after that due to 1L24-8 fault. We got beam back around midnight and checked the NPS anode current values (<a href="https://logbooks.jlab.org/entry/4256424">https://logbooks.jlab.org/entry/4256424</a>). All checked out ok, and we turned the column 0 and 1 back on. The production data current settings are increased 5uA -> 11uA for LH2 and 3uA -> 5uA for LD2.</p>
<p>During the mid-Owl shift, shift crew noticed that we have LV problems with column 24 and 25. The experts were called in this morning and we are now taking an escorted access to check the issue.</p>
<p>While we are having an access his morning, Julie also checked the SHMS hut and found that the temperature is 89 F. The AC is running, but the air is not cold. MCC is contacting the facilities to look at it.</p>
<p>We took LH2 data and the first Dummy run so far.</p>
<p>We will not have the RC meeting today. We will post updates to HCLOG, but if you have any questions/concerns please contact the RC.<br />
The plan is to continue taking production data once we are back from the access.</p>
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