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<p>Please find notes from today's meeting below and <a
moz-do-not-send="true"
href="https://halldweb.jlab.org/wiki-private/index.php/Hall_D_Staff_Meeting,_June_12,_2017">on
the web</a>.</p>
<p>_______________________</p>
<p> </p>
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<h1 id="firstHeading" class="firstHeading" lang="en"><span
dir="auto">Hall D Staff Meeting, June 12, 2017</span></h1>
<div id="bodyContent" class="mw-body-content">
<div id="siteSub">From Gluex PRIVATE Wiki</div>
<div id="mw-content-text" dir="ltr" class="mw-content-ltr"
lang="en">
<p>Present: Thomas Britton, Eugene Chudakov (chair), Mark
Dalton, Alexandre Deur, Hovanes Egiyan, Sergey Furletov,
Mark Ito, David Lawrence, Paul Mattione, Lubomir Pentchev,
Elton Smith, Sascha Somov, Simon Taylor, Beni Zihlmann
</p>
<h2><span class="mw-headline" id="Announcements">Announcements</span></h2>
<p>From Eugene:
</p>
<ul>
<li> Physics thinks we can survive FY18, budget-wise
<ul>
<li> Research budget will have to be cut</li>
<li> 10 weeks of operations still in the plan</li>
<li> capital spending frozen
<ul>
<li> we can spend for DIRC, 1/4 to 1/2 of one box</li>
</ul>
</li>
</ul>
</li>
<li> Cryo group making progress with compressor
<ul>
<li> schedule is tight</li>
</ul>
</li>
<li> readiness review for PrimEx
<ul>
<li> issues last time: CompCal, target
<ul>
<li> Cryo group managed to liquefy helium</li>
<li> got to super-fluid, but that is not possible
for normal operations</li>
</ul>
</li>
<li> review passed with recommendations
<ul>
<li> need to be addressed by end of July</li>
</ul>
</li>
</ul>
</li>
</ul>
<h2><span class="mw-headline" id="Issues_for_the_October_Run">Issues
for the October Run</span></h2>
<ul>
<li> Hovanes: DAQ for solenoid
<ul>
<li> PXI module hangs, needs multiple reboots, but then
OK...</li>
<li> spare exists</li>
</ul>
</li>
<li> Lubomir: FDC threshold segmentation
<ul>
<li> $15 k</li>
</ul>
</li>
<li> David and Sergey: New RAID
<ul>
<li> $26 k</li>
<li> not needed if rate not increased, can go to 650
MB/s</li>
</ul>
</li>
<li> Hovanes: DIRC and PrimEx requirement finalization for
slow controls/EPICS
<ul>
<li> Sascha: PrimEx
<ul>
<li> Hall C guys working on it</li>
<li> PMTs by Aug., crystals by Aug.</li>
<li> conceptual design for box in place</li>
<li> electronics: some assembly required</li>
<li> nothing for this run</li>
</ul>
</li>
</ul>
</li>
<li> Elton: CPP
<ul>
<li> UMass has full-scale prototype</li>
<li> will bring down this summer, install behind forward
carriage</li>
<li> Tim needs a plan/budget</li>
</ul>
</li>
<li> Lubomir: TRD
<ul>
<li> modify to increase drift distance</li>
<li> will run again</li>
</ul>
</li>
<li> Sasha: firmware
<ul>
<li> work starts middle of July</li>
<li> 4 ns shift:
<ul>
<li> Ben Raydo busy with Hall B guys</li>
<li> fix not guaranteed</li>
</ul>
</li>
</ul>
</li>
</ul>
<h2><span class="mw-headline" id="Data_Analysis">Data Analysis</span></h2>
<ul>
<li> Thomas: 2017 data
<ul>
<li> last monitoring launch done, final checks in
progress, should start in a few days</li>
</ul>
</li>
<li> Lubomir: 2016 data, version 6
<ul>
<li> J/ψ width increased from 8 to 13 MeV, missing
proton, kinematic fit</li>
</ul>
</li>
<li> Simon can check the multi-photon survey, and
multi-photons with π<sup>+</sup>π<sup>−</sup></li>
</ul>
</div>
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<pre class="moz-signature" cols="72">--
Mark Ito, <a class="moz-txt-link-abbreviated" href="mailto:marki@jlab.org">marki@jlab.org</a>, (757)269-5295
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