<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
</head>
<body bgcolor="#FFFFFF" text="#000000">
Folks,<br>
<br>
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,_March_19,_2015#Minutes">https://halldweb.jlab.org/wiki/index.php/GlueX_Start_Counter_Meeting,_March_19,_2015#Minutes</a><br>
<br>
-- Mark<br>
_______________________________________________<br>
<div id="globalWrapper">
<div id="column-content">
<div id="content" class="mw-body" role="main"> <br>
<span dir="auto">GlueX Start Counter Meeting, March 19, 2015</span><span
class="mw-headline" id="Minutes">, Minutes</span><br>
<div id="bodyContent" class="mw-body-content">
<div id="mw-content-text" dir="ltr" class="mw-content-ltr"
lang="en">
<ul>
<li> <b>FIU</b>: Werner Boeglin</li>
<li> <b>JLab</b>: Mark Ito (chair), Eric Pooser, Beni
Zihlmann</li>
</ul>
<br>
<span class="mw-headline" id="Detector_Status">Detector
Status</span><br>
<br>
Eric gave the report.
<br>
<ul>
<li> There are three channels with higher than normal
rates in the discriminator-based scalers (no beam).
The standard rate is about 10 Hz, these are going at
500 Hz.</li>
<li> Eric is working on an automated program to do
discriminator threshold curves. this may troubleshoot
the previous item. He wants to implement a similar
program that used the FADC-based scalers.</li>
</ul>
<br>
<span class="mw-headline" id="Calibration">Calibration</span><br>
<ul>
<li> Eric has done a lot of work calibrating time-walk
for the start counter. He will give a presentation and
next week's Calibration Meeting.</li>
<li> Eric plans to start work implementing propagation
delay corrections based on the measurements made on
the bench at FIU. At present Simon has implemented a
simple velocity based correction in the code.</li>
</ul>
<br>
<span class="mw-headline"
id="Online_Monitoring_Histograms">Online Monitoring
Histograms</span><br>
<br>
There are several improvements to the online monitoring
histograms that Eric has planned. He will turn to this
after the propagation delay constant work.
<br>
</div>
<div class="printfooter">
<br>
Retrieved from "<a dir="ltr"
href="https://halldweb.jlab.org/wiki/index.php?title=GlueX_Start_Counter_Meeting,_March_19,_2015&oldid=64298">https://halldweb.jlab.org/wiki/index.php?title=GlueX_Start_Counter_Meeting,_March_19,_2015&oldid=64298</a>"<br>
<br>
</div>
</div>
</div>
</div>
</div>
<br>
</body>
</html>