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<p><font face="Helvetica, Arial, sans-serif">While Accelerator is
down for a week to investigate and repair vacuum problems, Dave
has begun to put the Hall C cryotarget in standby mode. Loop 1
will be cooled to 20 K or so and filled with helium gas, while
Loop 2 (filled with H2) will warm up. This will keep the inlet
and outlet cryo lines cold but will obviate the need to have a
dedicated target operator in the counting house. <br>
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<p><font face="Helvetica, Arial, sans-serif">Chris</font><br>
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<td>[New Logentry] Hall C target load shift</td>
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<th valign="BASELINE" align="RIGHT" nowrap="nowrap">Date: </th>
<td>Fri, 31 Aug 2018 11:45:02 -0400</td>
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<th valign="BASELINE" align="RIGHT" nowrap="nowrap">From: </th>
<td><a class="moz-txt-link-abbreviated" href="mailto:meekins@jlab.org">meekins@jlab.org</a></td>
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<th valign="BASELINE" align="RIGHT" nowrap="nowrap">To: </th>
<td><a class="moz-txt-link-abbreviated" href="mailto:smithg@jlab.org">smithg@jlab.org</a>, <a class="moz-txt-link-abbreviated" href="mailto:ckeith@jlab.org">ckeith@jlab.org</a>, <a class="moz-txt-link-abbreviated" href="mailto:covrig@jlab.org">covrig@jlab.org</a>,
<a class="moz-txt-link-abbreviated" href="mailto:jpchen@jlab.org">jpchen@jlab.org</a></td>
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<article id="node-666119" class="node node-logentry
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<header class="node-header">
<h1 class="node-title"> <a
href="https://logbooks.jlab.org/entry/3593227"
rel="bookmark" moz-do-not-send="true">Hall C target
load shift</a> </h1>
</header>
<div class="contextual-links-wrapper">
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<li><a
href="https://logbooks.jlab.org/entry/3593227/edit?destination=email/send"
moz-do-not-send="true">Edit</a></li>
<li><a
href="https://logbooks.jlab.org/entry/3593227/delete?destination=email/send"
moz-do-not-send="true">Delete</a></li>
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<div class="date-vitals">
<p class="author-datetime"> Lognumber <a
href="https://logbooks.jlab.org/entry/3593227"
class="lognumber" data-lognumber="3593227"
moz-do-not-send="true">3593227</a>. Submitted by <a
href="https://logbooks.jlab.org/user/meekins"
moz-do-not-send="true">meekins</a> on <time
datetime="2018-08-31T11:44:11-0400" pubdate="pubdate"><a
href="https://logbooks.jlab.org/entries?start_date=1535726651&end_date=1535733851&book=HCLOG&book=TARGETLOG"
moz-do-not-send="true">Fri, 08/31/2018 - 11:44</a></time>.
</p>
<table class="field-vitals">
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<th>Logbooks: </th>
<td><a href="https://logbooks.jlab.org/book/hclog"
moz-do-not-send="true">HCLOG</a> <a
href="https://logbooks.jlab.org/book/targetlog"
moz-do-not-send="true">TARGETLOG</a></td>
</tr>
<tr>
<th>Tags: </th>
<td><a
href="https://logbooks.jlab.org/tag/cryotarget"
moz-do-not-send="true">CryoTarget</a> <a
href="https://logbooks.jlab.org/tag/hall-c"
moz-do-not-send="true">Hall C</a></td>
</tr>
</tbody>
</table>
</div>
<div class="logentry node-content">
<p>Shifted load from loop 2 to loop 1 and reduced flow
from ESR down from 15 g/s to ~10 g/s.<br>
Heater power supplies and fan controllers have been
disabled.</p>
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