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</style><article id="node-991216" 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/3918205" rel="bookmark">RC Daily Update (Oct 05, 2021)</a>
</h1>
</header><div class="contextual-links-wrapper"><ul class="contextual-links"><li><a href="https://logbooks.jlab.org/entry/3918205/edit?destination=email/send">Edit</a></li><li><a href="https://logbooks.jlab.org/entry/3918205/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/3918205" class="lognumber" data-lognumber="3918205">3918205</a>. Submitted by <a href="https://logbooks.jlab.org/user/cyero">cyero</a> on <time datetime="2021-10-05T08:44:57-0400" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1633434297&end_date=1633441497&book=HCLOG">Tue, 10/05/2021 - 08:44</a></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>cyero</td></tr></table></div>
<div class="logentry node-content">
<b>Accelerator Status:</b>
<ul><li>Beam has been very stable. Issues have been from owr side this time.
<ul><li> See <a href="https://logbooks.jlab.org/entry/3917677">Oct 04 Day Beam Summary</a>, <a href="https://logbooks.jlab.org/entry/3918024">Oct 04 Swing Beam Summary</a>, <a href="https://logbooks.jlab.org/entry/3918164">Oct 05 Owl Beam Summary</a> </li>
</ul></li>
<li> Today, Ops is doing maintenance work from 09:00 to 13:00. During this time, there will be no beam into the Hall and any pending work can get done. <br /><b>Beam recovery is expected to start at 13:00 (this is NOT the time when Halls should expect beam)</b> </li>
</ul><b>General Hall C Status:</b>
<ul><li> Oct 04 Swing (yesterday):
<ul><li> At 13:24, there was an HMS Dipole Interlock alarm <a href="https://logbooks.jlab.org/entry/3917638">HMS Dipole Interlock</a>. Contacted Amy Comer, but nothing could be done remotely. <br />
She contacted Joe Beaufait and he went to the Hall with RADCON to check the problem. Joe and Ellen managed to temporarily fix the issue by by-passing a flow switch which caused MPS interlock <a href="https://logbooks.jlab.org/entry/3917784">HMS Dipole Fixed</a></li>
<li> At ~19:57, SHMS Q1 went into interlock <a href="https://logbooks.jlab.org/entry/3917905">SHMS Q1 Interlock</a> and I contacted Ellen Becker (the new magnet expert on-call). Ellen went into the Hall and fixed the issue (low voltage power supply failure). She also went ahead and fixed a minor issue with the HMS Dipole ITrue readback <a href="https://logbooks.jlab.org/entry/3917965">SHMS Q1 Interlock Fixed</a> </li>
</ul></li>
<li> Oct 05 Owl/Day (today):
<ul><li> At 07:34, I was informed about <a href="https://logbooks.jlab.org/entry/3918179">SHMQ Q1 Interlock</a>. Contacted Ellen and she will need to go into the Hall. Shift crew has requested a full survey of the Hall so that Ellen can have <br />
more time to look at issue more in-depth in both the HMS as well as SHMS magnets, as interlocks have been more frequent. Accelerator will also be down during this time (starting at 09:00 am) for maintenance.
</li>
<li> After beam studies conclude today and beam is restored to Hall C after beam recovery, BCM calibrations will get done sometime in the afternoon (TDB). We should let Hall B know beforehand, as these will be invasive to them. </li>
</ul></li>
</ul><b>Hall C PION-LT Data Collection/Analysis Status:</b><br /><ul><li> As of 07:27 today (Owl Shift), we have accumulated: 1975 pions (19.75 %) (thanks Richard) </li>
</ul>
We will have brief RC Daily Meeting today at 10:00 am to discuss plan on moving forward.
<p>
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