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<p>Please find the minutes <a moz-do-not-send="true"
href="https://halldweb.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_October_9,_2019#Minutes">here</a>
and below.</p>
<p>
</p>
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<h2 id="firstHeading" class="firstHeading" lang="en"><span
dir="auto">GlueX TOF Meeting, October 9, 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> Edmundo Barriga, Ashley Ernst,
Sasha Ostrovidov</li>
<li> <b> JLab: </b> Mark Ito (chair), Simon Taylor,
Tim Whitlatch, Beni Zihlmann</li>
</ul>
<p>There is a <a rel="nofollow" class="external text"
href="https://bluejeans.com/s/brHpQ/">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 reviewed the <a
href="https://halldweb.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_September_25,_2019#Minutes"
title="GlueX TOF Meeting, September 25, 2019">minutes
of the meeting on September 25</a>.
</p>
<ul>
<li> Beni has looked at the channel with the drooping
PMT that was pointed out last time and it looks good
on the scope. Tim agrees with Paul that the glue joint
is intact on that end of the counter. See <a
href="https://halldweb.jlab.org/wiki/images/c/c4/TOF_ASSY.jpg"
class="internal" title="TOF ASSY.jpg">Tim's photo</a>
and see if you can find the PMT in question.</li>
<li> Tim will ask the guys to put new labels on the
frames to indicate which cables go where.</li>
</ul>
<h3><span class="mw-headline" id="Upgrade_Status">Upgrade
Status</span></h3>
<p>We looked at Tim's recent <a rel="nofollow"
class="external text"
href="https://halldweb.jlab.org/talks/2019/hdlist_tof.pdf">HDList
entry</a>.
</p>
<ul>
<li> The support frames will be put on today.</li>
<li> The array will be mounted on the forward carriage
tomorrow.</li>
<li> Survey will be done on Friday.</li>
<li> The TOF will be aligned with the FCAL. It is known
that the FCAL is 6 mm off from beam center, but there
is no plan to move it. If such a plan develops, the
TOF will move with it.</li>
</ul>
<h3><span class="mw-headline" id="Software_Issues">Software
Issues</span></h3>
<h4><span class="mw-headline"
id="TOF_Component_and_Cabling_Tables">TOF Component
and Cabling Tables</span></h4>
<p>Mark has put together a database that accounts for all
components of the TOF including cables and their
connections. Tables in the database account for the
following:
</p>
<ol>
<li> Modules</li>
<li> PMTs</li>
<li> Signal cables</li>
<li> Splitters</li>
<li> ADC cables</li>
<li> ADCs</li>
<li> Discriminator cables</li>
<li> Discriminators</li>
<li> TDC cables</li>
<li> TDCs</li>
<li> HV cables</li>
<li> HV cards</li>
</ol>
<p>He relies on spreadsheets obtained from Nick Sandoval
for all of the cable connections. The database for TOF
II (upgraded configuration) is complete. That for TOF I
(legacy configuration) still needs a few components (but
is by now an academic exercise).
</p>
<p>Database queries can be composed to generate several
different views of the data. Mark showed three examples,
all generated with a one-line query:
</p>
<ol>
<li> <a rel="nofollow" class="external text"
href="https://halldweb.jlab.org/detectors/tof/tofmap1.html">Module/PMT
map for TOF I</a></li>
<li> <a rel="nofollow" class="external text"
href="https://halldweb.jlab.org/detectors/tof/tofmap2.html">Module/PMT
map for TOF II</a></li>
<li> <a rel="nofollow" class="external text"
href="https://halldweb.jlab.org/detectors/tof/adc2_report.html">Crate/slot/channel
map for TOF II ADCs</a></li>
</ol>
<p>A new, independent labeling scheme is introduced, which
is oriented toward reconstruction:
</p>
<ul>
<li> "H" or "V" for horizontally oriented modules or
vertically oriented modules</li>
<li> "01" to "46" for the 46 PMTs along an edge, running
from negative x (or y) to positive x (or y) in the
global GlueX coordinates</li>
<li> "+" or "-", + for the positive end of the module in
x (or y), - for the negative end</li>
</ul>
<p>Example (3) can be used to generate the translation
table for ADC read-out. Similar tables can be generated
for the HV and the TDCs electronic channel maps.
</p>
<h4><span class="mw-headline" id="Monte_Carlo_Status">Monte
Carlo Status</span></h4>
<p>Ashley reports that there is still a problem with
HDGeant4 vis-a-vis the upgraded TOF. See <a
rel="nofollow" class="external text"
href="https://github.com/JeffersonLab/HDGeant4/issues/123">HDGeant4
Issue #123</a>, "TOF geometry generalization."
</p>
<h3><span class="mw-headline" id="TOF_NIM_paper">TOF NIM
paper</span></h3>
<p>Beni encouraged Sasha to start writing up the section
on module testing and certification. Sasha will prepare
a draft by next week.
</p>
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