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</style><article id="node-792356" 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/3719416" rel="bookmark">RC Update Thursday August 15 (RC Meeting today at 3:30 PM)</a>
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</header><div class="contextual-links-wrapper"><ul class="contextual-links"><li><a href="https://logbooks.jlab.org/entry/3719416/edit?destination=email/send">Edit</a></li><li><a href="https://logbooks.jlab.org/entry/3719416/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/3719416" class="lognumber" data-lognumber="3719416">3719416</a>. Submitted by <a href="https://logbooks.jlab.org/user/cornejo">cornejo</a> on <time datetime="2019-08-15T10:28:25-0400" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1565875705&end_date=1565882905&book=HALOG">Thu, 08/15/2019 - 10:28</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">
<p>The Wien flip from Left to Right was completed in early Swing shift yesterday. Caryn worked with injector expert to establish PQB. MCC then performed harp scans around 6 PM, and shift crew moved to D7-208Pb9-D8 for production running 6:30 PM . The shift crew ran a PITA scan with 70 uA. The crew had concerns that the tungsten temperatures were at 72.5, and consultation with Ciprian we decided that it was time to move to a new target now that the asymmetry widths had become larger than 100 ppm.</p>
<p>Around 20:45 the shift crew changed to D5-208Pb8-D6. The spot check was skipped since Ciprian pointed us to an ELOG showing that it had already been checked with a higher raster size. The tungsten temperatures were more under control with the new target.</p>
<p>Production continued throughout the remainder of SWING, OWL and well into the DAY shift this morning, with only a few interruptions. Double peaking was seen in the BCM asymmetries during late SWING shift and we called MCC to see if they can check if anything had changed on their side since the last time. They were able to reduce the asymmetries, but they slowly crept back up. Around OWL shift they asked MCC if they can repeat what they had done during SWING to reduce the double peaking. MCC ended up calling the injector expert, whom was unable to reduce the double peaking without seeing our screens. So SL called Caryn to work with the injector expert to reduce the asymmetries.</p>
<p>We will have the usual RC meeting today at 3:30 PM in the second floor of the Counting House. For those participating from remote, the following is the usual bluejeans info:</p>
<p>Bluejeans Meeting ID: 256 205 934<br />
Direct bluejeans link: <a href="https://bluejeans.com/256205934">https://bluejeans.com/256205934</a></p>
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