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<p>Folks,</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,_October_4,_2016#Minutes">https://halldweb.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_October_4,_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, October 4, 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, Eugene Chudakov, Mark
Ito (chair), Simon Taylor, Beni Zihlmann</li>
</ul>
<p>There is a <a rel="nofollow" class="external text"
href="https://bluejeans.com/s/4J7we/">recording of
this meeting</a> on the BlueJeans site.
</p>
<h2><span class="mw-headline" id="TOF_HV_scan_Fall_2016">TOF
HV scan Fall 2016</span></h2>
<p>Beni presented his plan.
</p>
<h3><span class="mw-headline" id="Prerequisites">Prerequisites</span></h3>
<ul>
<li> a) base line adjusted to 100 ADC counts</li>
<li> b) all discriminator thresholds at about 10 mV
above base line</li>
<li> c) readout window optimized for ADC with first
pulse at least 10 samples after window start, window
width 160ns (40 samples)</li>
<li> d) NSA 25 samples</li>
<li> e) NSB 3 samples</li>
<li> f) CAEN tdc readout window 200ns and timing peak in
center.</li>
</ul>
<h3><span class="mw-headline" id="Data_Taking_List">Data
Taking List</span></h3>
<ol>
<li> set all HV to NOMINAL=1200V (>25 M triggers, ~25
files)</li>
<li> set all HV -25V of NOMINAL (>25 M triggers)</li>
<li> set all HV +25V of NOMINAL (>25 M triggers)</li>
<li> set all HV -50V of NOMINAL (>25 M triggers)</li>
<li> set all HV +50V of NOMINAL (>25 M triggers)</li>
<li> set all HV -75V of NOMINAL (>25 M triggers)</li>
<li> set all HV -100V of NOMINAL (>25 M triggers)</li>
<li> set all HV -125V of NOMINAL (>25 M triggers)</li>
</ol>
<p>We thought that we should add a few voltage settigs
above NOMINAL in addition to those listed above.
</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 looked at the <a
href="https://halldweb.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_September_20,_2016#Minutes"
title="GlueX TOF Meeting, September 20, 2016">minutes
from September 20</a>.
</p>
<p>Mark will arrange a meeting with Vladimir Popov next
week to discuss PMT bases with amplification.
</p>
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