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</style><article id="node-1346868" 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/4273820" rel="bookmark">RC Update (04/04/2024)</a>
</h1>
</header><div class="contextual-links-wrapper"><ul class="contextual-links"><li><a href="https://logbooks.jlab.org/entry/4273820/edit?destination=email/send">Edit</a></li><li><a href="https://logbooks.jlab.org/entry/4273820/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/4273820" class="lognumber" data-lognumber="4273820">4273820</a>. Submitted by <a href="https://logbooks.jlab.org/user/rafopar">rafopar</a> on <time datetime="2024-04-04T09:03:04-0400" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1712232184&end_date=1712239384&book=HCLOG">Thu, 04/04/2024 - 09:03</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>
<div class="logentry node-content">
<p>RC summary:</p>
<p>* Yesterday (04/03/2024), Day shift: continuing the elastic program which was finished Early Swing shift<br />
** Yesterday during the RC meeting it was decided to take short 30 min runs with a larger 4mmx4mm raster size, to see if it will change the target Y distribution.<br />
** We will probably hear more on this during the RC meeting today at 11:00</p>
<p>* Early swing shift we switched to Production configuration: KinC_x60_1<br />
* Analyzing the 1st data with LH2 target from the KinC_x60_1 setting, Wassim and Charles concluded that 1st 2-3 columns of NPS are in the shadow of the sweep magnet Yoke.<br />
Based on this it was decided to turn the HVs of the 1st column off. </p>
<p>* During the swing shift the target Loop 2 heater power went to zero, strangely no alarm sounded in the counting room.<br />
Chandan fixed it by Opening the Loop 2 JT valve (12% to 14.6%) and Loop 1 (from 10% to 11%). <a href="https://logbooks.jlab.org/entry/4273444">https://logbooks.jlab.org/entry/4273444</a></p>
<p>During the Owl shift we got a HIHI alarm on LN2 level <a href="https://logbooks.jlab.org/entry/4273696">https://logbooks.jlab.org/entry/4273696</a>.<br />
I should have been more careful reading instructions to know that this is not a time critical, and expert should be contacted only during day time for the LN2 high level alarm, I apologize for for calling Heidi in the middle of the night.</p>
<p>Other than that everything is going as planned.<br />
Currently Mark Mathison is preparing for the Moeller run.</p>
<p>* The day, Swing and Owl ABUs are very good<br />
ABU BANU BNA ACC OFF UP TUNE BNR DOWN OFF<br />
4.09 1.26 2.65 0 0 4.42 0.36 1.29 1.93 0 - DAY, Apr 3<br />
5.85 0.44 1.71 0 0 6.01 0.02 0.44 1.52 0 - Swing Apr 3<br />
6.39 0.28 1.33 0 0 6.57 0 0.28 1.15 0 - Owl Apr 4</p>
<p>We will meet at 11:00 am today for the RC meeting.</p>
<p><a href="https://jlab-org.zoomgov.com/j/1617015555?pwd=L09IQ216dml6ZmM5ODExVjFsMX">https://jlab-org.zoomgov.com/j/1617015555?pwd=L09IQ216dml6ZmM5ODExVjFsMX</a>...</p>
<p>Meeting ID: 161 701 5555</p>
<p>Passcode: 288953</p>
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