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</style><article id="node-1246900" 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/4173860" rel="bookmark">RC Update</a>
</h1>
</header><div class="contextual-links-wrapper"><ul class="contextual-links"><li><a href="https://logbooks.jlab.org/entry/4173860/edit?destination=email/send">Edit</a></li><li><a href="https://logbooks.jlab.org/entry/4173860/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/4173860" class="lognumber" data-lognumber="4173860">4173860</a>. Submitted by <a href="https://logbooks.jlab.org/user/jroche">jroche</a> on <time datetime="2023-09-01T17:30:31-0400" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1693600231&end_date=1693607431&book=HCLOG">Fri, 09/01/2023 - 17:30</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>jroche</td></tr></table></div>
<div class="logentry node-content">
Please send questions, comments and corrections.<p>
<b>MCC update</b>
</p><ul><li>At nominal gradient (1047 MeV/pass) but not allowance. RF recovery is continuing.
</li><li>Beam is available to us Tuesday, 9/05 swing shift. And as of right now, we intend to take it.
</li></ul><b> Rough timeline</b>
<ul><li>Frid (09/01)
<ul><li>Afternoon: MCC Hot check out: Hall closed from 1 to 6 p.m. Hall re-opens after 6 p.m.
</li></ul></li><li>Mon – Labor day
<ul><li>We will have a RC meeting
</li></ul></li><li>Ties day shift (09/05)
<ul><li>Morning: Hall C checklist
</li><li>Finish installing NPS correctors
</li><li>Move NPS to nominal positions (NPS at 9.5 m and 17 deg)
</li><li>Condensate LD2 and LH2 targets.
</li></ul></li><li>Tues swing
<ul><li>Hall to controlled access
</li><li>MCC to demonstrate 50 uA on the dump (start physics time)
</li><li>Establish beam position (including sweep magnet deflection: run plan 2.1.1, 2.1.2, and 2.1.3, Dave G)
</li><li>Follow run plan (Charles) - HMS detector checkout (run plan 2.1.6) - trigger checkout (plan is on the work)
</li></ul></li><li>Wed day
<ul><li>Target practical training (Silviu)
</li><li>Possible MCC maintenance day
</li></ul></li></ul><b>Hall status update</b>
<ul><li> <a href="https://logbooks.jlab.org/entry/4172735">ESR Cryo underload</a>. We are trying to use as much coolant as we can.
<ul><li>Cryo/vacuum issues prevent the remote (and on-demand) motion of
HMS. The HMS is parked at 16.44 deg where we want it for the start
of the data taking. SHMS motion is no problem.
</li><li>We will decide Tu if we need 12h access Wed to reconfigure the SHMS to help with this ESR underload.
</li><li>To help solve the cryo overload Target cool down to Helium in
progress. At the meeting, I (JR) mistakenly stated it had been completed.
</li></ul></li><li>HMS checklist (Bill started this)
</li><li>NPS calo checklist (tuesd)
</li><li>NPS magnets: complete installation on Tuesday (at least all day shift)
</li><li>Shifter/config documentation: please continue to update/review the <a href="https://hallcweb.jlab.org/wiki/index.php/Main_Page#Fall_2023_NPS_experiments">Hall C wiki page</a>.
</li><li>Calo status
<ul><li>new holes drilled. The calo can reach 8.5 and 9.5 m.
</li><li>Malek proposes new HV for cosmics and for photon DVCS based on his analysis of run 722.
</li><li>gain versus sweep magnet (with LED) – prelim result 8% diff –
</li><li>need to tape 5 more columns
</li><li>gain versus HV (with LED) -pending
</li><li>need to remove front plate – pending
</li><li>need to connect NDX cable + place dosimeter and humidity and temp sensor and instal Dryer lines
</li></ul></li><li> <a href="https://hallcweb.jlab.org/wiki/index.php/NPS_Run_Plan_(2023)">Run plan</a>: Charles is updating it to include the commissioning of
the trigger (as was discussed Wednesday
afternoon).
</li></ul></div>
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