<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<p>Please find the notes below and at
<a class="moz-txt-link-freetext" href="https://halldweb.jlab.org/wiki-private/index.php/Hall_D_Staff_Meeting,_February_20,_2017">https://halldweb.jlab.org/wiki-private/index.php/Hall_D_Staff_Meeting,_February_20,_2017</a>
.</p>
<p>___________________________________</p>
<p> </p>
<div id="content" class="mw-body" role="main">
<h1 id="firstHeading" class="firstHeading" lang="en"><span
dir="auto">Hall D Staff Meeting, February 20, 2017</span></h1>
<div id="bodyContent" class="mw-body-content">
<div id="siteSub">From Gluex PRIVATE Wiki</div>
<div id="mw-content-text" dir="ltr" class="mw-content-ltr"
lang="en">
<p>Present: Alexander Austregesilo, Marouen Baalouch, Thomas
Britton, Eugene Chudakov (chair), Mark Dalton, Hovanes
Egiyan, Sergey Furletov, Mark Ito, David Lawrence, Paul
Mattione, Lubomir Pentchev, Patrizia Rossi, Sascha Somov,
Elton Smith, Simon Taylor, Beni Zihlmann
</p>
<div id="toc" class="toc">
<div id="toctitle">
<h2>Contents</h2>
</div>
<ul>
<li class="toclevel-1 tocsection-1"><a
href="https://halldweb.jlab.org/wiki-private/index.php?title=Hall_D_Staff_Meeting,_February_20,_2017&printable=yes#Announcements.2C_Eugene"><span
class="tocnumber">1</span> <span class="toctext">Announcements,
Eugene</span></a></li>
<li class="toclevel-1 tocsection-2"><a
href="https://halldweb.jlab.org/wiki-private/index.php?title=Hall_D_Staff_Meeting,_February_20,_2017&printable=yes#Engineering.2C_Tim"><span
class="tocnumber">2</span> <span class="toctext">Engineering,
Tim</span></a></li>
<li class="toclevel-1 tocsection-3"><a
href="https://halldweb.jlab.org/wiki-private/index.php?title=Hall_D_Staff_Meeting,_February_20,_2017&printable=yes#Polarization_from_Rho.2C_Alex._A."><span
class="tocnumber">3</span> <span class="toctext">Polarization
from Rho, Alex. A.</span></a></li>
<li class="toclevel-1 tocsection-4"><a
href="https://halldweb.jlab.org/wiki-private/index.php?title=Hall_D_Staff_Meeting,_February_20,_2017&printable=yes#Fast_Electronics.2C_Sascha"><span
class="tocnumber">4</span> <span class="toctext">Fast
Electronics, Sascha</span></a></li>
</ul>
</div>
<h2><span class="mw-headline" id="Announcements.2C_Eugene">Announcements,
Eugene</span></h2>
<ul>
<li> Make sure to complete your property validation.</li>
<li> Don't forget about health insurance open enrollment
either.</li>
<li> New Postdoc: Marouen Baalouch, joint appointment
between ODU and JLab. Welcome!</li>
</ul>
<h2><span class="mw-headline" id="Engineering.2C_Tim">Engineering,
Tim</span></h2>
<ul>
<li> nitrogen excursion, not a big deal</li>
<li> transistor bank, one is out can survive with 12 out
(5%), as many as 50 at current current</li>
<li> goniometer plan: repair ourselves or ship to
manufacturer?
<ul>
<li> we could do replacement of electronic boards and
switches</li>
<li> changing switches to mechanical type a bigger
effort</li>
</ul>
</li>
</ul>
<h2><span class="mw-headline"
id="Polarization_from_Rho.2C_Alex._A.">Polarization from
Rho, Alex. A.</span></h2>
<ul>
<li> now seeing 32%, more details need checking</li>
<li> Nathan Sparks seeing 36% with the TPOL</li>
<li> also working on study of data quality at high intensity</li>
</ul>
<h2><span class="mw-headline" id="Fast_Electronics.2C_Sascha">Fast
Electronics, Sascha</span></h2>
<ul>
<li> F250s have problem with pulses close to pedestal window
<ul>
<li> new firmware run in playback mode, looks good (kind
of)</li>
<li> proposal load new firmware for test in Hall
tomorrow when beam off, run cosmics to test</li>
</ul>
</li>
<li> Low-bias trigger
<ul>
<li> over weekend ran with tagger trigger</li>
<li> see 200 ns improvement in tagger trigger latency</li>
<li> with 20 counts, see > 60 MHz with tagger alone</li>
<li> see 700 kHz with start counter in coincidence</li>
</ul>
</li>
</ul>
</div>
<div class="printfooter"> Retrieved from "<a dir="ltr"
href="https://halldweb.jlab.org/wiki-private/index.php?title=Hall_D_Staff_Meeting,_February_20,_2017&oldid=1921">https://halldweb.jlab.org/wiki-private/index.php?title=Hall_D_Staff_Meeting,_February_20,_2017&oldid=1921</a>"
</div>
</div>
</div>
<div id="footer" role="contentinfo">
<ul id="footer-info">
<li id="footer-info-lastmod"> This page was last modified on 22
February 2017, at 14:10.</li>
<li id="footer-info-viewcount">This page has been accessed 2
times.</li>
</ul>
</div>
<br>
<pre class="moz-signature" cols="72">--
<a class="moz-txt-link-abbreviated" href="mailto:marki@jlab.org">marki@jlab.org</a>, (757)269-5295
</pre>
</body>
</html>