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<a href="https://logbooks.jlab.org/entry/4431486" rel="bookmark">RC Daily update - 7/31/25</a>
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Lognumber <a href="https://logbooks.jlab.org/entry/4431486" class="lognumber" data-lognumber="4431486">4431486</a>. Submitted by <a href="https://logbooks.jlab.org/user/hanjie">hanjie</a> on <time datetime="2025-07-31T08:52:28-0400" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1753962748&end_date=1753969948&book=HCLOG">Thu, 07/31/2025 - 08:52</a></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>hanjie</td></tr>
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<div class="logentry node-content">
<p>Yesterday is a maintenance day. Beam was taken way at 8 am. Hall went into restrict access (due to the Door 2 failed to fully close issue). </p>
<p>The SHMS Dipole communication issue is resolved during the access: <a href="https://logbooks.jlab.org/entry/4430827">https://logbooks.jlab.org/entry/4430827</a><br />
The reflections in the SHMS DC reference time are removed by increasing the discriminator threshold: <a href="https://logbooks.jlab.org/entry/4430776">https://logbooks.jlab.org/entry/4430776</a></p>
<p>Hall C went into beam permit before 5 pm, and the tune beam was sent to the hall around 8:30 pm. MCC did a Hall C orbit resteer in order to stop tripping the SHMS ion chamber (<a href="https://logbooks.jlab.org/entry/4431014">https://logbooks.jlab.org/entry/4431014</a>). The production run at LH2 started at 9:40 pm. After that, it's been smoothly production running. Overnight, the second cycle of the current kinematics is complete. </p>
<p>At 8 am this morning, the beam is taken away for Hall B pass change (pass 5 -> pass 1), which would likely take the entire day shift. After the beam is back, the run plan is to start the third cycle of the current kinematics, and would likely move to the next kinematics during the owl shift. More details will be discussed during the RC meeting.</p>
<p>We will hold our regular RC meeting today at 2:30 PM. The Zoom link is provided below.</p>
<p><a href="https://jlab-org.zoomgov.com/j/1618227115?pwd=8JkhFg6YNesVc3HNgWjwUSIKIu">https://jlab-org.zoomgov.com/j/1618227115?pwd=8JkhFg6YNesVc3HNgWjwUSIKIu</a>...</p>
<p>Meeting ID: 161 822 7115<br />
Passcode: 253463</p>
<p>7/30 Day shift summary: <a href="https://logbooks.jlab.org/entry/4430863">https://logbooks.jlab.org/entry/4430863</a><br />
7/30 Swing shift summary: <a href="https://logbooks.jlab.org/entry/4430874">https://logbooks.jlab.org/entry/4430874</a><br />
7/31 Owl shift summary: <a href="https://logbooks.jlab.org/entry/4431209">https://logbooks.jlab.org/entry/4431209</a></p>
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