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</style><article id="node-1156441" 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/4083405" rel="bookmark">RC Update -- Monday 11/14 [Meeting at 3:30pm]</a>
</h1>
</header><div class="contextual-links-wrapper"><ul class="contextual-links"><li><a href="https://logbooks.jlab.org/entry/4083405/edit?destination=email/send">Edit</a></li><li><a href="https://logbooks.jlab.org/entry/4083405/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/4083405" class="lognumber" data-lognumber="4083405">4083405</a>. Submitted by <a href="https://logbooks.jlab.org/user/pdbforce">pdbforce</a> on <time datetime="2022-11-14T12:35:18-0500" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1668443718&end_date=1668450918&book=HALOG">Mon, 11/14/2022 - 12:35</a></time>. </p>
<table class="field-vitals"><tr><th>Logbooks: </th><td><a href="https://logbooks.jlab.org/book/halog">HALOG</a></td></tr></table></div>
<div class="logentry node-content">
<h2>Accelerator and Hall Status</h2>
<ul><li>We will take the Hall to "Controlled Access" tomorrow as soon as possible to accommodate all the work requests. "Special Requests" section below contains a list of all the requests I have got so far.</li>
<li>Since Hall B is going to be down for a while we have requested MCC to change Wien angle tomorrow to maximize the polarization to Hall A. They have agreed to do so.</li>
<li>We will stick to our previous plan to do a Moller measurement on Thursday. <b>Should we take a mini spin dance measurement as well?</b> Let's discuss at the RC meeting.</li>
<li>If we stick to 45uA then MCC will not have to do a BLA calibration to Hall A BCM on Wednesday. They will have to do it if they need to send 60uA to both Hall A and C. <b>Should we cancel our plan to do BCM calibration on Wednesday then?</b> Let's discuss at the RC meeting.</li>
<li>After a long downtime (4hrs+9hrs) we got beam back around 5pm yesterday. Then doing beam checkout and troubleshooting some BBGEM HV issue took another 3 hours. So, we could start production only around 8pm. </li>
<li>Things have been smooth since then. MCC seems to be able to send us 45uA now. </li>
<li>We had some DAQ related issues this morning but they are fixed now. Thanks to GEM folks and Alex.</li>
</ul><h2>Run Plan for Today</h2>
<ul><li>Continue taking production data with 45 uA beam current</li>
<li>Do NMR sweeps every 2/3 hours</li>
</ul><h2>Polarization & Acc. Charge</h2>
<ul><li>Total Accumulated Charge on He3: <b>4.632 C</b> </li>
<li>Total Accumulated Charge on He3 (Corrected): <b>4.296 C</b> </li>
<li>Polarization as of 01:33 pm: <b>42.4%</b> </li>
</ul><h2>Special Requests</h2> <b style="color:red;">Needs Attention!</b>
MCC will do beam maintenance on Tuesday. They will take beam away ~ 6:45 am and the whole procedure will take at least one and half shift. If anyone wants to make an access to the hall during that time, then <b>please let me know before hand.</b> We have limited number of access keys, so proper coordination is absolutely necessary. <br />Here is the list of requests I have so far:<br /><table><tr><th>Purpose</th>
<th>Coordinator</th>
<th>No. of Access Keys Needed</th>
<th>Expected Work Time</th>
<th>Preferred Time</th>
<th>Tech Support Needed? </th>
</tr><tr><td>Hall A walkthrough</td>
<td>Simona Malace</td>
<td> 3 </td>
<td> 40 mins</td>
<td>Before 4pm</td>
<td> No </td>
</tr><tr><td>Left dump and Compton IC diagnosis</td>
<td>Jerry Kowal</td>
<td> 3 </td>
<td> 3 hrs</td>
<td> 9 am </td>
<td> No </td>
</tr><tr><td>Work on GRINCH gas system</td>
<td>Carlos Ayerbe</td>
<td>2</td>
<td>1 hr</td>
<td></td>
<td> No </td>
</tr><tr><td>Work on 1st INFN Layer (SBS)</td>
<td>Holly Szumila-Vance</td>
<td>3</td>
<td>1 hr</td>
<td></td>
<td> Yes, HV supply needs to be locked out </td>
</tr></table><p><b>Let's meet today at the usual time (3:30 pm) to go over recent and future activities.</b><br />
Meeting details:<br />
Time: Daily at 3:30pm<br />
Location: Counting house conference room<br />
Join ZoomGov Meeting<br /><a href="https://jlab-org.zoomgov.com/j/1619032184?pwd=aWhTVWxya1ZZQzA1K2ZPSTd2ZX">https://jlab-org.zoomgov.com/j/1619032184?pwd=aWhTVWxya1ZZQzA1K2ZPSTd2ZX</a><br />
Meeting ID: 161 903 2184<br />
Passcode: 260715<br />
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