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</style><article id="node-1114813" 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/4041778" rel="bookmark">RC Summary</a>
</h1>
</header><div class="contextual-links-wrapper"><ul class="contextual-links"><li><a href="https://logbooks.jlab.org/entry/4041778/edit?destination=email/send">Edit</a></li><li><a href="https://logbooks.jlab.org/entry/4041778/delete?destination=email/send">Delete</a></li></ul></div>
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Lognumber <a href="https://logbooks.jlab.org/entry/4041778" class="lognumber" data-lognumber="4041778">4041778</a>. Submitted by <a href="https://logbooks.jlab.org/user/hauenst">hauenst</a> on <time datetime="2022-09-15T08:44:47-0400" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1663242287&end_date=1663249487&book=HBLOG">Thu, 09/15/2022 - 08:44</a></time>. </p>
<p class="last-update">
Last updated on <time datetime="2022-09-15T08:45:39-0400" pubdate="pubdate">Thu, 09/15/2022 - 08:45</time></p>
<table class="field-vitals"><tr><th>Logbooks: </th><td><a href="https://logbooks.jlab.org/book/hblog">HBLOG</a></td></tr><tr><th>Entry Makers: </th><td>hauenst</td></tr></table></div>
<div class="logentry node-content">
<p>Welcome everyone to the RC summary September 15:</p><p>Beam came back yesterday after long maintenance around 9pm. Harp scans with beam to tagger looked good (<a href="https://logbooks.jlab.org/entry/4041648">https://logbooks.jlab.org/entry/4041648</a> and <a href="https://logbooks.jlab.org/entry/4041655">https://logbooks.jlab.org/entry/4041655</a>).</p><p>We took a Moller run and obtained 86.2%+/-1/2% polarization (halfwate plate IN) see <a href="https://logbooks.jlab.org/entry/4041675">https://logbooks.jlab.org/entry/4041675</a></p><p>Degaussed tagger and started with 5nA on NH3 with previous positions and raster settings. DC occupancies and raster histogram look okay beside missing strength on the top similar to the issue with the LHe level from a day ago. We increased liquid level from 70% to 72% but issue persist. Suspicion that maybe the NH3 is not filled completely (see <a href="https://logbooks.jlab.org/entry/4041701">https://logbooks.jlab.org/entry/4041701</a>) and we cannot do anything about it.</p><p>Beam ramped to 7nA during night and it will be changed to 8nA later. </p><p>Plans: </p><ul><li>Some raster tweaking</li><li>change of half-wave plate after enough statistics is collected</li></ul><p>We have RC meeting at 2pm</p><p>Best,</p><p>Florian</p> </div>
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