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</style><article id="node-767989" 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/3695055" rel="bookmark">Status update</a>
</h1>
</header><div class="contextual-links-wrapper"><ul class="contextual-links"><li><a href="https://logbooks.jlab.org/entry/3695055/edit?destination=email/send">Edit</a></li><li><a href="https://logbooks.jlab.org/entry/3695055/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/3695055" class="lognumber" data-lognumber="3695055">3695055</a>. Submitted by <a href="https://logbooks.jlab.org/user/sanghwa">sanghwa</a> on <time datetime="2019-06-27T09:05:34-0400" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1561637134&end_date=1561644334&book=HALOG">Thu, 06/27/2019 - 09:05</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>Beam restored in the middle of swing after the power loss in BSY (<a href="https://logbooks.jlab.org/entry/3694560">https://logbooks.jlab.org/entry/3694560</a>) yesterday. When the beam came back around 8pm, we started with the low current cavity lock commissioning which was completed successfully at 10pm. The remaining dp scan data (+1, 0, -1% HRS+Septum) was taken till the mid-owl followed by target frame finding with Carbon hole until the end of owl shift. As of now Q2 measurement is ongoing by Bob and crew. Once that is finished we will coordinate with Yves for the Compton commissioning with high current (sending up to 50uA through the Compton chicane).</p>
<p>As a reminder, there will be a power outage around 2pm and the accelerator will be turned off. While MCC works on the machine restoration, we will have a controlled access so that Dustin can adjust the Quartz detector. After everything goes well, detector rate study and high current production test will follow.</p>
<p>We will discuss the plan at the daily experimental meeting at 3:30 (2nd floor counting house conference room)<br />
Bluejeans Meeting ID: 256 205 934 (Direct link: <a href="https://bluejeans.com/256205934">https://bluejeans.com/256205934</a>)</p>
<p>Note for shift crew:<br />
- Please do the Shift Checklist at the beginning of the shift<br />
- Moller polarimeter target magnet coil temperature and compressor pressure values are now added to Alarm handler and Shift checklist</p>
<p>Pending work (all expert driven):<br />
- Beam modulation commissioning (system working)<br />
- SAM test<br />
- Moller commissioning (tentatively scheduled on Sunday)</p>
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