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</style><article id="node-875602" 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/3802631" rel="bookmark">RC daily update</a>
</h1>
</header><div class="contextual-links-wrapper"><ul class="contextual-links"><li><a href="https://logbooks.jlab.org/entry/3802631/edit?destination=email/send">Edit</a></li><li><a href="https://logbooks.jlab.org/entry/3802631/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/3802631" class="lognumber" data-lognumber="3802631">3802631</a>. Submitted by <a href="https://logbooks.jlab.org/user/adaq">adaq</a> on <time datetime="2020-03-12T09:58:15-0400" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1584017895&end_date=1584025095&book=HALOG">Thu, 03/12/2020 - 09:58</a></time>. </p>
<table class="field-vitals"><tr><th>Logbooks: </th><td><a href="https://logbooks.jlab.org/book/halog">HALOG</a></td></tr><tr><th>Entry Makers: </th><td>thielm</td></tr></table></div>
<div class="logentry node-content">
The LHRS shield house temperature stays constant at 80.0 F since yesterday morning. We are still monitoring the situation, but for today there seems to be no action necessary.<br /><br />
Yesterday was running quite smoothly. <br />
Day shift collected 1.9C with avg. efficiency ~65%<br />
Swing shift collected 2.5C with avg. efficiency ~70%<br />
Owl shift collected 2.6C with avg. efficiency ~71%<br />
In total we collected 7C and finished slugs 162 and 163. slug 164 is currently ongoing.<br /><br />
We had no beam for approx. 2 hours in the afternoon (2:30pm to 4:30pm) most likely due to a drop of substation power (see <a href="https://logbooks.jlab.org/entry/3802145">https://logbooks.jlab.org/entry/3802145</a>). At the same time LHRS dipole tripped (see <a href="https://logbooks.jlab.org/entry/3802145">https://logbooks.jlab.org/entry/3802145</a>, <a href="https://logbooks.jlab.org/entry/3802171">https://logbooks.jlab.org/entry/3802171</a>)<br />
Today we lost beam at ~6:40am (see <a href="https://logbooks.jlab.org/entry/3802566">https://logbooks.jlab.org/entry/3802566</a>) and still waiting to get the beam back. After brief update from the Crew Chief we expect beam at ~10:30am. <br /><br />
The plan is to continue with production as soon as the beam is back. In addition, we have scheduled an unser calibration for today.<br /><br />
Open issues:<br />
monitor the LHRS shield house temperature<br /><br />
ROC6 was crashing at least once during a shift yesterday<br /><br />
We still have some open shifts to be filled:<br />
saturday march 14: owl TO<br />
saturday march 14: day SL<br />
sunday march 15: day SL<br />
sunday march 15: day analysis<br />
monday march 16: owl analysis<br />
monday march 16: day SL<br />
wednesday march 18: owl SL<br /><br />
During todays morning 8am PD summary meeting it was mentioned: "I noticed that despite having ~24 more minutes of beam over the other halls, Hall A reported significantly less ABU+BANU than other halls." (see <a href="https://logbooks.jlab.org/entry/3802609">https://logbooks.jlab.org/entry/3802609</a>). We should address this issue during the RC meeting this afternoon.<br /><br />
We will have our usual meeting upstairs in the counting house at 3:15 PM today. Bluejeans link for remote participants: <a href="https://bluejeans.com/256205934">https://bluejeans.com/256205934</a><br /><br />
Michaela Thiel (Hall A Run Coordinator)<br /><br /></div>
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