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</style><article id="node-1221620" 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/4148583" rel="bookmark">Owl Shift Summary</a>
</h1>
</header><div class="contextual-links-wrapper"><ul class="contextual-links"><li><a href="https://logbooks.jlab.org/entry/4148583/edit?destination=email/send">Edit</a></li><li><a href="https://logbooks.jlab.org/entry/4148583/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/4148583" class="lognumber" data-lognumber="4148583">4148583</a>. Submitted by <a href="https://logbooks.jlab.org/user/hattawy">hattawy</a> on <time datetime="2023-03-13T00:06:05-0400" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1678676765&end_date=1678683965&book=HBLOG">Mon, 03/13/2023 - 00:06</a></time>. </p>
<p class="last-update">
Last updated on <time datetime="2023-03-13T08:02:23-0400" pubdate="pubdate">Mon, 03/13/2023 - 08:02</time></p>
<table class="field-vitals"><tr><th>Logbooks: </th><td><a href="https://logbooks.jlab.org/book/hblog">HBLOG</a></td></tr><tr><th>Entry Makers: </th><td>hattawy</td></tr></table></div>
<div class="logentry node-content">
<p>00:00 Called MCC. No estimate for the beam back yet.<br />
00:13 MCC called. Beam is back. Starting run 17767.<br />
00:55 BMT HV Sec2 L1 strip tripped. Turning off and back on. We noticed that Vset is back to 500 V (we changed it to 480 V the other day), but found no log entry about it.<br />
02:14 BMT HV Sec2 L1 strip tripped again. Turning off and back on.<br />
02:18 BMT HV Sec2 L1 strip tripped again. Changing Vset from 500 V to 480 V and Iset from 2 uA to 3 uA and ramping up to high voltage. Mohammed has been instructed by Yuri to do this whenever needed.<br />
03:59 Ending run 17767 with 43M events. Starting new run.<br />
04:50 Called MCC to correct 2C21 x position because it was at -0.2mm for the whole shift, and prescripted is -0.4mm<br />
05:10 Called MCC to put orbit locks on 2C24 and 2H01 because beam position was very good.<br />
06:42 BMT HV Sec3 L1 strip tripped. Turned off and back on.<br />
06:43 Called MCC to take the beam away. Also called Eugene to start ramping down the magnets.<br />
07:46 Both magnets are rampped down. </p>
<p>Shift summary:<br />
ABUs: 266 minutes.<br />
BNAs:159 minutes<br />
Total events: 74M triggers on empty target setting.</p>
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