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</style><article id="node-1105330" 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/4032296" rel="bookmark">RC Update - 22/08/22</a>
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</header><div class="contextual-links-wrapper"><ul class="contextual-links"><li><a href="https://logbooks.jlab.org/entry/4032296/edit?destination=email/send">Edit</a></li><li><a href="https://logbooks.jlab.org/entry/4032296/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/4032296" class="lognumber" data-lognumber="4032296">4032296</a>. Submitted by <a href="https://logbooks.jlab.org/user/sjdkay">sjdkay</a> on <time datetime="2022-08-22T08:45:13-0400" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1661168713&end_date=1661175913&book=HCLOG">Mon, 08/22/2022 - 08:45</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>
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<p>A quick update on our status and progress today.</p>
<p>Beam over the weekend was very good, we had 400 minutes of ABU on Sunday day shift. Other shifts weren't too far off either (with one exception that we'll get to).</p>
<p>As such, we got through all of the Q2=3.85 W=2.62 x=0.39 setting, including getting a bit of extra time on the two left settings. Owl shift finished the LD2 left at about 03:00 and then started setting the magnets for the Q2=1.60 W=3.08 x=0.15 setting.</p>
<p>Unfortunately, this is where our problems come in. The SHMS dipole PSU wasn't responding to any communications, Amy had to go into the hall to fix it - <a href="https://logbooks.jlab.org/entry/4032264">https://logbooks.jlab.org/entry/4032264</a></p>
<p>Since the hall was in controlled access to fix the SHMS dipole PSU, a full survey was conducted - <a href="https://logbooks.jlab.org/entry/4032277">https://logbooks.jlab.org/entry/4032277</a></p>
<p>During the period this was being resolved, there was a VESDA alarm in the NL - <a href="https://logbooks.jlab.org/entry/4032270">https://logbooks.jlab.org/entry/4032270</a></p>
<p>This took the accelerator down at around 04:00. This is still being resolved but it looks like it'll be a few hours till they're back.</p>
<p>We're still in controlled access now, we will do the rotation to 5.50 degrees at around 10:00. After this, we'll go back into production as soon as we get beam.</p>
<p>As it turns out, we'll be doing the next kinematic in reverse. We start on page 39 of the run plan and work backwards to page 33. If things go well, this setting should be done by tomorrow. At that point, we switch to negative polarity on the SHMS where we have some long settings. Flashbacks of running in October 2021 may occur.</p>
<p>Other plans are -<br />
- BCM calibration tomorrow - I'll go and discuss/brief MCC on this once things calm down today and we're back into smooth running<br />
- Arc Energy Measurement Wednesday.</p>
<p>We'll meet at 11:00 on Zoom -</p>
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