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<p>Folks,</p>
<p>Please find the minutes <a moz-do-not-send="true"
href="https://halldweb.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_July_17,_2019#Minutes">here</a>
and below.</p>
<p> -- Mark</p>
<p>___________________________________________</p>
<p>
</p>
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<h2 id="firstHeading" class="firstHeading" lang="en"><span
dir="auto">GlueX TOF Meeting, July 17, 2019, </span><span
class="mw-headline" id="Minutes">Minutes</span></h2>
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lang="en">
<p>Present:
</p>
<ul>
<li> <b> FSU: </b> Paul Eugenio, Sasha Ostrovidov</li>
<li> <b> JLab: </b> Mark Ito (chair), Simon Taylor,
Tim Whitlatch</li>
</ul>
<p>There is a <a rel="nofollow" class="external text"
href="https://bluejeans.com/s/gLq3L/">recording of
this meeting</a> on the BlueJeans site. Use your JLab
credentials to access it.
</p>
<h3><span class="mw-headline"
id="Review_of_minutes_from_the_last_meeting">Review of
minutes from the last meeting</span></h3>
<p>We went over <a
href="https://halldweb.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_July_3,_2019#Minutes"
title="GlueX TOF Meeting, July 3, 2019">the minutes
from the meeting on July 3</a>.
</p>
<ul>
<li> <b>Channel labels on the TOF</b>. Each channel in
the Hall now has four matching labels to mark their
previous location after dis-assembly:
<ol>
<li> on the iron shields</li>
<li> on the collars</li>
<li> on the brackets</li>
<li> on the frame</li>
</ol>
<ul>
<li> previously only the iron shields had labels.</li>
</ul>
</li>
<li> <b>PMT order</b>. Mark ordered another 6 PMTs from
Hamamatsu to bring the total order to 23.</li>
</ul>
<h3><span class="mw-headline" id="Upgrade_Status">Upgrade
Status</span></h3>
<h4><span class="mw-headline" id="Loose_PMTs_at_JLab">Loose
PMTs at JLab</span></h4>
<p>Mark has made <a rel="nofollow" class="external text"
href="https://markito3.wordpress.com/2019/07/17/pmt-inventory-july-17-2019/">an
inventory of PMTs at JLab</a>, at least those that he
could find. There are five new loose PMTs that can be
used for the upgrade. There is also one on the test
module in the Hall that could be recovered in a pinch.
</p>
<h4><span class="mw-headline"
id="Plan_for_Work_in_the_Hall">Plan for Work in the
Hall</span></h4>
<p>Paul showed <a rel="nofollow" class="external text"
href="https://halldweb.jlab.org/doc-public/DocDB/ShowDocument?docid=4123">slides
outlining the next steps in the Hall</a>.
</p>
<ul>
<li> He requested a particular orientation of the TOF on
the floor when it gets dismounted.</li>
<li> He gave a review of which modules will be removed
and which ones installed.</li>
<li> He outlined the plan for replacing PMTs
<ul>
<li> 23 PMTs are needed beyond the batch of 25 new
ones at FSU</li>
<li> Default plan is to remove the PMTs from the
full-length, full-width counters that will be
taken out of the array. There are 8 of these for a
yield 16 PMTs. There are the 5 loose ones at JLab.
And there are 4 on the mini-TOF at FSU for a total
of 25 PMTs.</li>
</ul>
</li>
</ul>
<p>The plan is to take down the TOF and put it on the
floor on this coming Friday, Monday, or Tuesday
depending on details of the crew's schedule. Paul will
arrive in Newport News Tuesday night and head back on
Friday with the PMTs as well as other construction
tooling.
</p>
<h4><span class="mw-headline"
id="Other_Construction_Items">Other Construction Items</span></h4>
<ul>
<li> The shipment of lumber for the construction of
shipping crates arrived from Lowe's on Monday. There
are foam insulation sheets that were out-of-stock for
delivery that still need to be purchased.</li>
<li> There is hardware for the brackets that JLab needs
to order: bolts for the collars, set screws for
holding the PMTs.</li>
<li> Stephanie Worthington has the design for the
beam-line hole box ready to go. She will send the
drawings to Paul.</li>
<li> We will not try to implement air light guides
across the beam hole in this go-around.</li>
<li> The last of the 4.5 cm long modules should be
completed today.</li>
<li> Mark needs to add 21 PMTs (16 from TOF I, 5 loose)
to the loan agreement.</li>
</ul>
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