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<p>Folks,</p>
<p>Please find the notes <a moz-do-not-send="true"
href="https://halldweb.jlab.org/wiki-private/index.php/Hall_D_Staff_Meeting,_January_25,_2021">here</a>
and below.</p>
<p> -- Mark</p>
<p>__________________________________________________</p>
<p> </p>
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<h1 id="firstHeading" class="firstHeading" lang="en"><span
dir="auto">Hall D Staff Meeting, January 25, 2021</span></h1>
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lang="en">
<p>Present: Alexander Austregesilo, Eugene Chudakov (chair),
Mark Dalton, Alexandre Deur, Hovanes Egiyan, Sergey
Furletov, Mark Ito, Igal Jaegle, Keigo Mizutani, Patrizia
Rossi, Sascha Somov, Simon Taylor, Tim Whitlatch, Beni
Zihlmann
</p>
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<h2>Contents</h2>
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<ul>
<li class="toclevel-1 tocsection-1"><a
href="https://halldweb.jlab.org/wiki-private/index.php?title=Hall_D_Staff_Meeting,_January_25,_2021&printable=yes#Announcements.2C_Eugene"><span
class="tocnumber">1</span> <span class="toctext">Announcements,
Eugene</span></a></li>
<li class="toclevel-1 tocsection-2"><a
href="https://halldweb.jlab.org/wiki-private/index.php?title=Hall_D_Staff_Meeting,_January_25,_2021&printable=yes#Work_in_the_Hall.2C_Tim"><span
class="tocnumber">2</span> <span class="toctext">Work
in the Hall, Tim</span></a></li>
<li class="toclevel-1 tocsection-3"><a
href="https://halldweb.jlab.org/wiki-private/index.php?title=Hall_D_Staff_Meeting,_January_25,_2021&printable=yes#Crystals.2C_etc..2C_Sascha"><span
class="tocnumber">3</span> <span class="toctext">Crystals,
etc., Sascha</span></a></li>
<li class="toclevel-1 tocsection-4"><a
href="https://halldweb.jlab.org/wiki-private/index.php?title=Hall_D_Staff_Meeting,_January_25,_2021&printable=yes#FCAL_Base_Repairs.2C_Mark_D."><span
class="tocnumber">4</span> <span class="toctext">FCAL
Base Repairs, Mark D.</span></a></li>
</ul>
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<h2><span class="mw-headline" id="Announcements.2C_Eugene">Announcements,
Eugene</span></h2>
<ul>
<li> Rolf Ent stepping down as AD</li>
<li> New run schedule about to be announced:
<ul>
<li> start Aug. 23, '21, run until Dec. 20</li>
<li> next run starts Feb. 23 '22, run for 14 weeks</li>
<li> schedule has implications for CPP installation
<ul>
<li> period after '21 run too short for complete
install</li>
</ul>
</li>
</ul>
</li>
<li> Matt Shepherd has asked about how we will run shifts
<ul>
<li> Will likely go back to the one-person, six-hour
shifts</li>
<li> Hovanes: need method for training new collaborators
to take one-person shifts if that becomes the norm</li>
<li> Mark I: collaboration board needs ideas on how to
compensate local collaborators for taking all of the
shifts</li>
</ul>
</li>
</ul>
<h2><span class="mw-headline" id="Work_in_the_Hall.2C_Tim">Work
in the Hall, Tim</span></h2>
<ul>
<li> main item: mirrors, get 'em going
<ul>
<li> tests ongoing</li>
<li> need to take down North box</li>
<li> make a decision for the long-term plan</li>
</ul>
</li>
<li> chillers:
<ul>
<li> need checks</li>
<li> one this week, one next week</li>
</ul>
</li>
<li> Scot working on cooling system for magnet power
supplies</li>
<li> 3-D printing continues...</li>
<li> CPP
<ul>
<li> total: 3 month installation</li>
<li> tasks to move before '21 run
<ul>
<li> dark room modifications</li>
<li> pre-position detectors</li>
<li> need to think about adding to this list</li>
</ul>
</li>
<li> procurements
<ul>
<li> all stand drawings about to be released</li>
<li> PR coming this week, 23-29 k$</li>
<li> 3-4 months for fabrication</li>
</ul>
</li>
</ul>
</li>
</ul>
<h2><span class="mw-headline" id="Crystals.2C_etc..2C_Sascha">Crystals,
etc., Sascha</span></h2>
<ul>
<li> Crystals
<ul>
<li> two batches received, 350 crystals</li>
<li> another batch to arrive soon</li>
<li> testing at TEDF
<ul>
<li> visual inspection</li>
<li> measure dimensions</li>
<li> light transmission measurements
<ul>
<li> compare with pre-selection data from Jane
(no surprises thus far)</li>
</ul>
</li>
</ul>
</li>
<li> fabrication modules started</li>
<li> a few done</li>
<li> procedure will be modified (brazing temperature
adjustment)</li>
</ul>
</li>
<li> CompCal
<ul>
<li> improvements to LMS</li>
<li> larger optical fibers</li>
<li> increase LED light intensity</li>
<li> tests of modified bases
<ul>
<li> linearity of amplifier</li>
<li> using set-up in lab</li>
<li> Fernando will order board when design finalized</li>
</ul>
</li>
</ul>
</li>
<li> tagger hodoscope
<ul>
<li> a few need repair</li>
<li> will do the work this summer</li>
</ul>
</li>
</ul>
<h2><span class="mw-headline"
id="FCAL_Base_Repairs.2C_Mark_D.">FCAL Base Repairs, Mark
D.</span></h2>
<ul>
<li> Chris Stanislav and/or Nick Sandoval will remove
another 100 bases</li>
<li> all 200 will be re-installed when repairs are done.</li>
</ul>
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