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<article id="node-1516105" class="node node-logentry article ia-n clearfix" role="article">
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<h1 class="node-title">
<a href="https://logbooks.jlab.org/entry/4443037" rel="bookmark">Hall C RC update</a>
</h1>
</header>
<div class="date-vitals">
<p class="author-datetime">
Lognumber <a href="https://logbooks.jlab.org/entry/4443037" class="lognumber" data-lognumber="4443037">4443037</a>. Submitted by <a href="https://logbooks.jlab.org/user/chandan">chandan</a> on <time datetime="2025-08-15T09:21:50-0400" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1755260510&end_date=1755267710&book=HCLOG">Fri, 08/15/2025 - 09:21</a></time>. </p>
<p class="last-update">
Last updated on <time datetime="2025-08-15T09:32:06-0400" pubdate="pubdate">Fri, 08/15/2025 - 09:32</time> </p>
<table class="field-vitals">
<tr><th>Logbooks: </th><td><a href="https://logbooks.jlab.org/book/hclog">HCLOG</a></td></tr>
<tr><th>Entry Makers: </th><td>chandan</td></tr>
</table>
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<div class="logentry node-content">
<br />
<br />
Here are some notable things that have happened since yesterday, and the short-term run plan:
<ul>
<li> We ran smoothly until 7 pm when the SHMS dipole interlocked <a href="denied:”https://logbooks.jlab.org/entry/4442552”"> hclog entry</a>. </li>
<li> It interlocked again on the lead flow when the shift workers tried to ramp it up again after clearing the interlock. <a href="denied:”https://logbooks.jlab.org/entry/4442592”"> SHMS dipole interlocked again</a>. </li>
<li> Heidi adjusted the <a href="denied:”https://logbooks.jlab.org/entry/4442606”"> max lead follow </a> and that <a href="denied:”https://logbooks.jlab.org/entry/4442639”"> enabled us to set the SHMS magnet </a> for the desired kinematics. However, Heidi wants the flow controller to be replaced before the weekend. </li>
<li> After that, we ran smoothly overnight for the z=0.90 kinematic. Except one 15 min Cu run, we have completed data taking for this kinematic. </li>
<li> Currently, RadCon is surveying the hall, so that Heidi and her team can replace the suspected flow controller for the SHMS Dipole lead and hoping for a smooth running over the weekend. </li>
<li> We are planning to do a Moller polarization measurement on the coming Monday. </li>
<li> We will continue executing the <a href="denied:”https://hallcweb.jlab.org/wiki/images/e/ee/R_SIDIS_Run_Plan_Summer_2025_JLab_v26.pdf”"> Run plan </a>. </li>
<li> Here are the last three shift summaries from <a href="https://logbooks.jlab.org/entry/4442175"> yesterday's day </a>, <a href="https://logbooks.jlab.org/entry/4442486"> yesterday's swing </a>, and <a href="https://logbooks.jlab.org/entry/4442752"> and today's owl </a>. ABU for last 24 hours – 10.9 hours. Actual Beam in the Hall is 16.1 hr. Hall down for 2 hour for SHMS interlock</li>
<li> <span style="color: #ff0000;"> We have few open shifts next week. Please sign up if you can. <a href="denied:”https://misportal.jlab.org/mis/apps/physics/shiftSchedule/index.cfm?experimentRunId=HALLC-RSIDIS”"> Shift signup page </a></span></li>
</ul>
<br />
<br />
We will have a regular RC meeting at 2:30 pm today in the CH conference room.
People can join remotely via:
<br />
<a href="https://jlab-org.zoomgov.com/j/1618227115?pwd=8JkhFg6YNesVc3HNgWjwUSIKIu5SvP.1"> Zoom link </a>
US Toll-free: 833 568 8864
<br />
Meeting ID: 161 822 7115
<br />
Passcode: 253463
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