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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,_October_6,_2021#Minutes">here</a>
and below.</p>
<p> -- Mark</p>
<p> ___________________________________</p>
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<h2 id="firstHeading" class="firstHeading" lang="en"><span dir="auto">GlueX TOF Meeting, October 6, 2021, </span><span class="mw-headline" id="Minutes">Minutes</span></h2>
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<p>Present: Eugene Chudakov, Mark Ito (chair), Simon
Taylor, Beni Zihlmann
</p>
<p>There is a <a rel="nofollow" class="external text" href="https://bluejeans.com/s/mkLTUR8xvId/">recording
of this meeting</a>. Log into the <a rel="nofollow" class="external text" href="https://jlab.bluejeans.com">BlueJeans site</a>
first to gain access (use your JLab credentials).
</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 the <a href="https://halldweb.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_August_25,_2021#Minutes" title="GlueX TOF Meeting, August 25, 2021">minutes of
the meeting on August 25</a>.
</p>
<ul>
<li> After replacement of the FADCs, Beni performed a
voltage scan, analyzed the data, and reset PMT
voltages accordingly to equalize gains. A gain
calibration was performed and the resulting energy
calibration tables are now in the CCDB. </li>
<li> The RF signal, measured with a CAEN TDC in the TOF
crate, is now better than it has ever been. Beni
solved the issue with a wide time distribution by
inserting a discriminator (with appropriate level
conversion modules) in front of the jitter attenuation
box [?].</li>
</ul>
<h3><span class="mw-headline" id="News_from_the_Run">News
from the Run</span></h3>
<p>Beni updated us on several areas of activity.
</p>
<ul>
<li> The acrylic shielding near the beam line has been
removed at the direction of the PrimEx leadership. The
rates around the beam line look reasonable
nonetheless.</li>
<li> Timing Calibration for PrimEx run
<ul>
<li> To get adequate statistics for the outer
counters, he must analyze all of the data from any
given run. The online skims do not produce enough
data. This is due to the character of the PrimEx
data.</li>
<li> He has been working on automating the
calibration procedure.</li>
<li> The walk corrections have been done and
uploaded to CCDB.</li>
</ul>
</li>
</ul>
<h3><span class="mw-headline" id="Student_from_SRC">Student
from SRC</span></h3>
<p>Jackson Pybus, an MIT student, will be working on TOF
calibration for the SRC experiment. Beni has been in
contact with him and will provide advice going forward.
</p>
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