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<p>Folks,</p>
<p>Find the minutes below and at
<a class="moz-txt-link-freetext" href="https://halldweb.jlab.org/wiki/index.php/GlueX_Start_Counter_Meeting,_March_9,_2017#Minutes">https://halldweb.jlab.org/wiki/index.php/GlueX_Start_Counter_Meeting,_March_9,_2017#Minutes</a>
.</p>
<p> -- Mark<br>
</p>
___________________<br>
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<h2><span class="mw-headline" id="Minutes">Minutes</span></h2>
<p>Present:
</p>
<ul>
<li> <b>JLab</b>: Thomas Britton, Mark Ito (chair),
Mahmoud Kamel, Simon Taylor</li>
</ul>
<p>There is a <a rel="nofollow" class="external text"
href="https://bluejeans.com/s/uonsT/">recording of this
meeting</a> on the <a rel="nofollow" class="external
text" href="https://jlab.bluejeans.com/">BlueJeans site</a>.
</p>
<p>We had a very brief meeting. Mahmoud <a rel="nofollow"
class="external text"
href="https://halldweb.jlab.org/talks/2017/SC_Meeting_03-09-2017.pdf">presented
his latest results</a> from his time-walk calibration.
Early on we discovered a small problem with the analysis
which made it hard to discuss the bulk of his results in
detail, but in summary, he has overhauled his approach. He
now makes fits to one-dimensional histograms of TDC time
vs. ADC time, in various intervals of peak pulse height to
build up data for the time walk correction fit. The fit is
to the same function he has been using for some time.
After that he is getting sub-300-ps resolution in all
counters, but no marked improvement from what was obtained
with his old method.
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<li id="lastmod"> This page was last modified on 9 March 2017,
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<pre class="moz-signature" cols="72">--
<a class="moz-txt-link-abbreviated" href="mailto:marki@jlab.org">marki@jlab.org</a>, (757)269-5295
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