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Folks,<br>
<br>
Please find the minutes below and at
<a class="moz-txt-link-freetext" href="https://halldweb.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_December_1,_2015#Minutes">https://halldweb.jlab.org/wiki/index.php/GlueX_TOF_Meeting,_December_1,_2015#Minutes</a>
.<br>
<br>
-- Mark<br>
__________________________________<br>
<br>
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<h1 id="firstHeading" class="firstHeading" style="font-weight:
bold;" lang="en"><span dir="auto">GlueX TOF Meeting, December
1, 2015</span>, Minutes</h1>
<div id="bodyContent" class="mw-body-content"><span
class="mw-headline" id="Minutes"></span>
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lang="en">
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">Present:</p>
<ul style="list-style-type: square;">
<li><b>FSU</b>: Hussein Al Ghoul, Brad Cannon, Paul
Eugenio, Sasha Ostrovidov, Aristeidis Tsaris</li>
<li><b>JLab</b>: Mark Ito (chair), Simon Taylor, Beni
Zihlmann</li>
</ul>
<h3 style="page-break-after: avoid; font-weight: bold;"><span
class="mw-headline" id="Announcements">Announcements</span></h3>
<ul style="list-style-type: square;">
<li>Mark performed the<span class="Apple-converted-space"> </span><b>Hot
Checkout</b><span class="Apple-converted-space"> </span>procedure
and moved the TOF to "ready" status on ???. He did not
take; data directly for this purpose, but consulted with
Sasha, who has been taking a lot of cosmic data recently
and certified that all of the electronic channels are
showing up in the data stream.</li>
<li>Paul responded to Mark about<span
class="Apple-converted-space"> </span><a
rel="nofollow" class="external text"
href="https://halldweb.jlab.org/talks/2015/fsu_loan.pdf"
style="color: inherit !important; padding: 0px
!important; text-decoration: inherit !important;
background: transparent;">Loan TJNAF#44283 to Florida
State</a>. FSU would like to extend the loan and the
request has been submitted to Property.</li>
</ul>
<h3 style="page-break-after: avoid; font-weight: bold;"><span
class="mw-headline" id="Calibration_Status_FSU">Calibration
Status FSU</span></h3>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">Sasha gave the report. He is done
with cosmic data taking. He collected 180 M events. Of
those 100 k have tracks with 5 hit modules or more. The
JANA reconstruction[?] was losing events without using a
custom database. This is needed because of timing
differences between beam and cosmic triggers. He is
working on implementing that now.</p>
<h3 style="page-break-after: avoid; font-weight: bold;"><span
class="mw-headline" id="Calibration_Status_JLab">Calibration
Status JLab</span></h3>
<p style="widows: 3; orphans: 3; margin: 1em 0px;
line-height: 1.2em;">Beni reported on two areas of work.</p>
<ul style="list-style-type: square;">
<li>He started looking at equalizing the time bin width of
the CAEN TDCs. He has code that will measure the
relative population of the four lowest-order bit
patterns, but he is not getting reproducible results at
present. He is using the new driver from Bryan Moffit to
access the control registers.</li>
<li>He has made some progress on the energy calibration.
He is seeing a problem where correcting for attenuation
(using two exponentials) using measured values is not
giving good results across the length of a given
counter. In some cases he is seeing double peaks. More
study is needed.</li>
</ul>
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