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Folks,<br>
<br>
Please find the minutes below and at<br>
<br>
<a class="moz-txt-link-freetext"
href="https://halldweb.jlab.org/wiki/index.php/GlueX_Start_Counter_Meeting,_April_16,_2015#Minutes">https://halldweb.jlab.org/wiki/index.php/GlueX_Start_Counter_Meeting,_April_16,_2015#Minutes</a><br>
<br>
-- Mark<br>
_________________________________________________________<br>
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<div id="mw-content-text" dir="ltr" class="mw-content-ltr"
lang="en">GlueX Start Counter Meeting<br>
<span class="mw-headline" id="Minutes">Minutes</span><br>
<br>
Present: <br>
<ul>
<li> <b>FIU</b>: Werner Boeglin, Mahmoud Kamel</li>
<li> <b>JLab</b>: Mark Ito (chair), Eric Pooser, Simon
Taylor</li>
</ul>
<br>
<span class="mw-headline" id="Collaboration_Meeting">Collaboration
Meeting</span><br>
<br>
FIU will make the presentation. They will need 30 minutes.
It will be some combination of Eric and Mahmoud. <br>
We had a brief discussion of ideas for an online
calibration. Werner pointed out that the thing we need to
know earlier rather than later are the various thresholds
of the detector. <br>
<br>
<span class="mw-headline" id="Detector_Status">Detector
Status</span><br>
<br>
Stable. The start counter is in the bore and ready to take
data. <br>
<br>
<span class="mw-headline" id="Calibration">Calibration</span><br>
<br>
Work continues on refining time-walk corrections and
propagation delay corrections. <br>
<ul>
<li> <b>Time Walk</b>. Eric is exploring using the
pulse maximum rather than pulse integral as the input
to the time-walk correction function.</li>
<li> <b>Propagation Delay</b>. Using the Fall data to
measure the delays has been difficult. FIU will try to
use the test bench data obtained during construction
as a basis for a correction scheme.</li>
</ul>
<br>
<span class="mw-headline" id="Next_Meeting">Next Meeting</span><br>
<br>
We agreed to meet again in a week. <br>
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