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<p>Timers,</p>
<p>Please find the minutes below and at
<a class="moz-txt-link-freetext" href="https://halldweb.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_November_15,_2016#Minutes">https://halldweb.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_November_15,_2016#Minutes</a>
.</p>
<p> -- Mark<br>
</p>
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<h2 id="firstHeading" class="firstHeading" lang="en"><span
dir="auto">GlueX TOF Meeting, November 15, 2016, </span><span
class="mw-headline" id="Minutes">Minutes</span></h2>
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<p>Present:
</p>
<ul>
<li> <b>FSU</b>: Sasha Ostrovidov</li>
<li> <b>JLab</b>: Thomas Britton, Brad Cannon, Paul
Eugenio, Mark Ito (chair), Simon Taylor</li>
</ul>
<h3><span class="mw-headline"
id="Announcement:_New_PMTs_Have_Arrived">Announcement:
New PMTs Have Arrived</span></h3>
<p>The 30 new tubes are here. They are in Mark's office.
We will look into shipping them to FSU so that they can
go through the same acceptance tests we used for the
tubes used in construction.
</p>
<h3><span class="mw-headline"
id="Review_of_minutes_from_the_previous_meeting">Review
of minutes from the previous meeting</span></h3>
<p>We went over <a
href="https://halldweb.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_October_18,_2016#Minutes"
title="GlueX TOF Meeting, October 18, 2016">minutes
from the meeting on October 18</a>.
</p>
<ul>
<li> <b>Timing Test at Reduced Gain</b>. Sasha will
look into doing this at FSU.</li>
<li> <b>Run Readiness</b>. There are four dead ADC
channels in the TOF right now. Beni Zihlmann is
investigating.</li>
<li> Hot Checkout is done for the TOF. Beni took care of
it.</li>
</ul>
<h3><span class="mw-headline"
id="Integral_Non-Linearity_Calibration_of_CAEN_TDCs">Integral
Non-Linearity Calibration of CAEN TDCs</span></h3>
<p>Beni complete his calibration of the INL correction.
Among other places, he reported <a rel="nofollow"
class="external text"
href="https://logbooks.jlab.org/entry/3435583">results
in the e-log</a>. Constants have been downloaded into
the CAEN TDCs and Paul Mattione <a rel="nofollow"
class="external text"
href="https://logbooks.jlab.org/entry/3436009">repeated
his RF test</a> with much better results.
</p>
<p>Beni has also been looking at the feasibility of
applying a correction to data already taken. The
procedure depends on the the constants and setting
resident of the CAEN before now. He is trying to do a
calibration using old data to assess the situation, but
the results are a bit confusing at present. He is
consulting with experts in the Electronics Group.
</p>
<h3><span class="mw-headline" id="HV_Scan_Planning">HV
Scan Planning</span></h3>
<p>There have been no functional changes in the software
since the last meeting. Paul Eugenio reminded us that
there might be some incompatibilities with ROOT 6
remaining.
</p>
<h3><span class="mw-headline" id="Lucite_Shield">Lucite
Shield</span></h3>
<p>Paul walked us through his elog entry on <a
rel="nofollow" class="external text"
href="https://logbooks.jlab.org/entry/3437900">the
test fit on the front face of the TOF</a> and his <a
rel="nofollow" class="external text"
href="https://logbooks.jlab.org/entry/3438847">simple
run plan</a>. He is looking into how much data would
be needed to do an FCAL calibration (to assess effects
on that detector).
</p>
<h3><span class="mw-headline"
id="TOF_Time_Resolution_for_Charged_Tracks">TOF Time
Resolution for Charged Tracks</span></h3>
<p>Brad is working on a study. He will aim for presenting
results at the next meeting.
</p>
<h3><span class="mw-headline" id="Action_Items">Action
Items</span></h3>
<ol>
<li> Fix the 4 dead ADC channels. (Brad)</li>
<li> Look into timing tests at FSU. (Sasha)</li>
<li> Look into shipping PMTs to FSU for testing. (Mark)</li>
<li> Look into a replacement LeCroy 1440 mainframe for
FSU. (Mark)</li>
</ol>
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