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</style><article id="node-1183677" 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/4110640" rel="bookmark">RC Update - Monday Jan 16, 2023</a>
</h1>
</header><div class="contextual-links-wrapper"><ul class="contextual-links"><li><a href="https://logbooks.jlab.org/entry/4110640/edit?destination=email/send">Edit</a></li><li><a href="https://logbooks.jlab.org/entry/4110640/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/4110640" class="lognumber" data-lognumber="4110640">4110640</a>. Submitted by <a href="https://logbooks.jlab.org/user/bduran">bduran</a> on <time datetime="2023-01-16T08:51:42-0500" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1673873502&end_date=1673880702&book=HCLOG">Mon, 01/16/2023 - 08:51</a></time>. </p>
<p class="last-update">
Last updated on <time datetime="2023-01-16T08:55:31-0500" pubdate="pubdate">Mon, 01/16/2023 - 08:55</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>bduran</td></tr></table></div>
<div class="logentry node-content">
<p><strong>*** IMPORTANT INFORMATION FOR SHIFT TAKERS: JLab requires wearing masks in public areas due to COVID-19 Community Level increases in the area. Please remember to wear a mask in the counting house.</strong></p><p> </p><p><strong>Sunday, Jan 15th Day Shift:</strong></p><p>- Around 11 am: Completed the CSB data taking and started the high Q2 electron running in the HMS (HMS momentum -4.08 GeV and angle 35 deg). SHMS kinematics are unchanged (-9.2 GeV and 10 deg). Some of the preshower blocks' HVs were turned off. Hodoscope paddle HV configuration remains the same. </p><p>- Took data on 12C target at these kinematics until the end of day shift.</p><p> </p><p><strong>Sunday, Jan 15th Swing Shift:</strong></p><p>- Finished the first round of 12C, 4He, and mostly dummy running at the same kinematics.</p><p>- The swing shift crew reported there were times the beam current was lowered or tune beam was sent without notifying the Hall C shift crew. </p><p> </p><p><strong>Monday, Jan 16th Owl Shift:</strong></p><p>- Very unstable beam, even at 40 uA. </p><p>- Took the first round of the Al dummy data and made progress in 3He.</p><p> </p><p><strong>Monday, Jan 16th Day Shift:</strong></p><p>- No beam as MCC is working on the beam stability/trips. Will continue taking data with 3He at the same kinematics once beam is back!</p><p> </p><p><strong>PLAN:</strong></p><p>- After completing 3He running, we will go through the same set of targets (12C, 3He, Al dummy, and 4He) one more time (about 6 hrs, 6 hrs, 2 hrs, and 6 hrs) at these SHMS/HMS settings before moving to the next HMS setting. The plan is to keep the SHMS kinematics the same for a while. The HMS momentum will change periodically to cover the "lower" x region. </p><p> </p><p>In yesterday's RC update, I mentioned having an RC today but forgetting that it's a holiday. No RC meeting today - we will meet tomorrow.</p><p>-Burcu</p> </div>
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