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</style><article id="node-1009041" 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/3936025" rel="bookmark">NDXs changed after downtime</a>
</h1>
</header><div class="contextual-links-wrapper"><ul class="contextual-links"><li><a href="https://logbooks.jlab.org/entry/3936025/edit?destination=email/send">Edit</a></li><li><a href="https://logbooks.jlab.org/entry/3936025/delete?destination=email/send">Delete</a></li></ul></div>
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Lognumber <a href="https://logbooks.jlab.org/entry/3936025" class="lognumber" data-lognumber="3936025">3936025</a>. Submitted by <a href="https://logbooks.jlab.org/user/benesch">benesch</a> on <time datetime="2021-11-02T14:33:54-0400" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1635874434&end_date=1635881634&book=ELOG">Tue, 11/02/2021 - 14:33</a></time>. </p>
<p class="last-update">
Last updated on <time datetime="2021-11-02T14:34:03-0400" pubdate="pubdate">Tue, 11/02/2021 - 14:34</time></p>
<table class="field-vitals"><tr><th>Logbooks: </th><td><a href="https://logbooks.jlab.org/book/elog">ELOG</a></td></tr><tr><th>Entry Makers: </th><td>benesch</td></tr><tr><th>References: </th><td><a href="https://logbooks.jlab.org/entry/3935899">3935899 - 1L12 Dropped Filaments</a><br /><a href="https://logbooks.jlab.org/entry/3935912">3935912 - The following cavities have been bypassed: 1L12-5 </a><br /><a href="https://logbooks.jlab.org/entry/3935914">3935914 - LEM North Linac</a><br /><a href="https://logbooks.jlab.org/entry/3935919">3935919 - QuickPic - NL/SL gangphase adjustment</a><br /><a href="https://logbooks.jlab.org/entry/3935921">3935921 - QuickPic - Pathlength correction</a><br /><a href="https://logbooks.jlab.org/entry/3935916">3935916 - HYST AREA 6-2-2 Cycles Magnets for LEM </a></td></tr></table></div>
<div class="logentry node-content">
<p>The spikes occurred as quads were cycled for lem - see linked entry time. Lem was required because 1L12-5 had to be bypassed. It's a C50 and the energy lock zone would have been pushed too hard to make it up. Pathlength and gang phase were corrected opportunistically so one can't say that the change in momentum distribution was the only possible cause.</p>
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