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</style><article id="node-1285526" 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/4212480" rel="bookmark">RC Daily Update Oct/29/2023, and RC meeting at 11 am</a>
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Lognumber <a href="https://logbooks.jlab.org/entry/4212480" class="lognumber" data-lognumber="4212480">4212480</a>. Submitted by <a href="https://logbooks.jlab.org/user/billlee">billlee</a> on <time datetime="2023-10-30T10:15:48-0400" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1698671748&end_date=1698678948&book=HCLOG">Mon, 10/30/2023 - 10:15</a></time>. </p>
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Last updated on <time datetime="2023-10-30T10:30:17-0400" pubdate="pubdate">Mon, 10/30/2023 - 10:30</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>billlee</td></tr></table></div>
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<p>Since the last update, we have been in the production phase with a reduced threshold (from 750 to 650). A few trigger tests were completed with the coin_sparse_low configuration, and the initial look is good for operating at a lower threshold and higher current. Feedback from MCC: Hall A at 45uA and Hall C at 35uA will cause issues. Hall A from this point on will be down for a while, we should think about profiting from running at a higher current. </p>
<p>In terms of data collection, it was an 80% day. 1084 mC of integrated charge collected. Crystals in the column 4 are seeing further degradation.<br />
Halfwave plated was taken out at 9:20 am today. We will continue production. </p>
<p>Near future plan:<br />
We will perform a corrector coil beam steering test for the next angle setting with a non-zero corrector coil field.<br />
Wednesday, November 2, during the beam study, 7:00 beam stops, 7:30 a.m.: sweep the hall open for maintenance; Hall will enter restricted access at 8:00-8:15 a.m, and sweep close the hall at 16:00.<br />
We will attempt the following maintenance items:<br />
- NPS students will remove all PMTs + bases from the column. Hall tech support is needed for this part.<br />
- Two new bases with the low voltage regulator bypassed (verified) will be swapped into the NPS.<br />
- NPS shielding installation if ready<br />
- Heidi is looking into adding an additional bandit to ensure SHMS dipole stability.<br />
- Chandan and Dave Mac will access and check the HMS hodoscope patch panel. to address this issue: <a href="https://logbooks.jlab.org/entry/4210267">https://logbooks.jlab.org/entry/4210267</a><br />
- Aaron will push new code for the NPS chiller controller.</p>
<p>Zoom link for the RC meeting: <a href="https://jlab-org.zoomgov.com/j/1617015555?pwd=L09IQ216dml6ZmM5ODExVjFsMXdsUT09#success">https://jlab-org.zoomgov.com/j/1617015555?pwd=L09IQ216dml6ZmM5ODExVjFsMX...</a></p>
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