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</style><article id="node-611678" class="node node-logentry article ia-n clearfix" role="article"><header class="node-header"><h1 class="node-title">
<a href="https://logbooks.jlab.org/entry/3538801" rel="bookmark">Status Update</a>
</h1>
</header><div class="date-vitals">
<p class="author-datetime">
Lognumber <a href="https://logbooks.jlab.org/entry/3538801" class="lognumber" data-lognumber="3538801">3538801</a>. Submitted by <a href="https://logbooks.jlab.org/user/pooser">pooser</a> on <time datetime="2018-02-26T10:33:33-0500" pubdate="pubdate">Mon, 02/26/2018 - 10:33</time>. </p>
<table class="field-vitals"><tr><th>Logbooks: </th><td><a href="https://logbooks.jlab.org/book/hclog">HCLOG</a></td></tr><tr><th>Entry Makers: </th><td>pooser</td></tr></table></div>
<div class="logentry node-content">
<p>Beam during swing yesterday and owl this morning was quite ratty with ~20 trips / hr at times (<a href="https://logbooks.jlab.org/entry/3538786">https://logbooks.jlab.org/entry/3538786</a>). There was a ~2.5 hr down (<a href="https://logbooks.jlab.org/entry/3538641">https://logbooks.jlab.org/entry/3538641</a>) from 2:15 - 4:45 am as a result of the trim rack W501B13 tripping off. Once the issue was resolved beam was quickly restored to the Hall and production data taking continued.</p>
<p>At the beginning of day shift we successfully completed the kinematic point for the SHMS of 39 degrees at -2.5 GeV by successfully collecting production data for the LH2, LD2, and 10 cm Al dummy targets. At ~7:45 am the SHMS momentum was reduced to -2.0 GeV (<a href="https://logbooks.jlab.org/entry/3538587">https://logbooks.jlab.org/entry/3538587</a>) in order to facilitate the next kinematic point of interest for F2. We plan to stay parked here for the next couple of days.</p>
<p>MCC began conducting beam studies today at 9 am, and will continue their studies until the end of day shift during which we will take parasitic beam for the first 4 hours. When MCC begins their optics studies at 1 pm, we will take a controlled access to conduct various work in the hall. We have been in contact with RadCon who reports that they will likely get to us some time around 1:30 pm. MCC will lock us up at 3:30 pm which results in mere 2 hour time window for any work in the hall to be conducted.</p>
<p>As a result of the reduced controlled access time window, Andy’s Y strainer installation on the SHMS power supply LCW lines has been rescheduled to the next controlled access. When exactly the next controlled access will occur is unknown at the moment. I will provide updates as soon as more information becomes available.</p>
<p>Work currently planned during at ~1:30 pm:<br />
Joe Beaufait: diagnose (and potentially fix) HMS door/shutter breaker (<a href="https://logbooks.jlab.org/entry/3535292">https://logbooks.jlab.org/entry/3535292</a>)<br />
Howard Fenker: visually inspect HMS hut for causes for chamber ringing and 60 Hz noise<br />
Steve Lassiter et. al.: Inspect HMS Q2 power supply via. visual and olfactive methods (thanks Simona :-p)</p>
<p>Special notices in effect for shift crews:<br />
Trouble shooting HMS Q1 valves JT6 and JT8: <a href="https://logbooks.jlab.org/entry/3538239">https://logbooks.jlab.org/entry/3538239</a>, <a href="https://logbooks.jlab.org/entry/3538243">https://logbooks.jlab.org/entry/3538243</a>, <a href="https://logbooks.jlab.org/entry/3538254">https://logbooks.jlab.org/entry/3538254</a><br />
Trouble shooting HMS Q2 power supply: <a href="https://logbooks.jlab.org/entry/3537306">https://logbooks.jlab.org/entry/3537306</a><br />
Don't ramp HMS Q2 higher than 610A: <a href="https://logbooks.jlab.org/entry/3535714">https://logbooks.jlab.org/entry/3535714</a><br />
TO Instructions for LH2 <--> LD2 switches : <a href="https://logbooks.jlab.org/entry/3534487">https://logbooks.jlab.org/entry/3534487</a></p>
<p>We will meet today in 200C at 1:30 pm (second floor of the counting house)<br />
Link: <a href="https://bluejeans.com/543903672">https://bluejeans.com/543903672</a><br />
Connecting directly from a room system?<br />
1) Dial: 199.48.152.152 or bjn.vc<br />
2) Enter Meeting ID: 543 903 672<br />
Just want to dial in on your phone?<br />
1) Direct-dial with my iPhone or<br />
+1.408.740.7256 (United States)<br />
+1.888.240.2560 (US Toll Free)<br />
+1.408.317.9253 (Alternate number)<br />
(Global Numbers)<br />
2) Enter Meeting ID: 543 903 672<br />
3) Press #</p>
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