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</style><article id="node-574574" 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/3501713" rel="bookmark">Hall-A Status Update and Plan for tomorrow</a>
</h1>
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<p class="author-datetime">
Lognumber <a href="https://logbooks.jlab.org/entry/3501713" class="lognumber" data-lognumber="3501713">3501713</a>. Submitted by <a href="https://logbooks.jlab.org/user/yez">yez</a> on <time datetime="2017-12-09T18:25:07-0500" pubdate="pubdate">Sat, 12/09/2017 - 18:25</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>yez</td></tr></table></div>
<div class="logentry node-content">
<p>Today after hours of diagnostics (switching the PS with a different one), the accelerator crews were convinced that the issue on the 2-pass separator that bend the beam into Hall-A is not because of the power supplies, but may be due to the magnets themselves. To investigate further requires shutting down the entire accelerator for hours but since B+C are the priorities, they decided to stop the effort on the entire weekend on Hall-A. </p>
<p>Together with Thia and PD, we worked out a new plan: to take the 3-pass beam instead so we can continue our commissioning over the weekend. To make it happens, the same team has to put the septum magnet configuration back to what it was before this morning, and they will do it on the early morning tomorrow. Afther it is done, MCC will try to deliver 3-pass beam into our hall, and we can start our commissioning until the Monday shut-down. </p>
<p>The Saturday-Swing shift and Sunday-Owl shifts are cancelled but TOs still have to stay. Shift workers on Sunday-Day are required to come in but can be here around 10.00 am (TO still come on 8.00 am).</p>
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