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</style><article id="node-718157" class="node node-logentry contextual-links-region article ia-n clearfix" role="article"><header class="node-header"><h1 class="node-title">
<a href="https://logbooks.jlab.org/entry/3645248" rel="bookmark">DIRC LV and readout tests</a>
</h1>
</header><div class="contextual-links-wrapper"><ul class="contextual-links"><li><a href="https://logbooks.jlab.org/entry/3645248/edit?destination=email/send">Edit</a></li><li><a href="https://logbooks.jlab.org/entry/3645248/delete?destination=email/send">Delete</a></li></ul></div>
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<p class="author-datetime">
Lognumber <a href="https://logbooks.jlab.org/entry/3645248" class="lognumber" data-lognumber="3645248">3645248</a>. Submitted by <a href="https://logbooks.jlab.org/user/jrsteven">jrsteven</a> on <time datetime="2019-01-24T10:42:15-0500" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1548340935&end_date=1548348135&book=HDDIRC">Thu, 01/24/2019 - 10:42</a></time>. </p>
<table class="field-vitals"><tr><th>Logbooks: </th><td><a href="https://logbooks.jlab.org/book/hddirc">HDDIRC</a></td></tr><tr><th>Entry Makers: </th><td>billlee, ahurley, mpatsyuk, yunjiey</td></tr></table></div>
<div class="logentry node-content">
<p>Yesterday we powered on the LV for all FPGA boards, after the bad optical fiber was replaced. With Sergey's DAQmon GUI we are able to monitor the temperature on each FPGA, and see scalers from the charge injection pulser on the MAROC boards (as configured by the DAQ). After a couple hours the temperatures stabilized with all below ~55 C. We will continue to monitor the temperatures today.</p>
<p></p><div class="image-wrapper"><img class="image-style-plentybig" src="https://logbooks.jlab.org/files/styles/plentybig/public/2019/01/3645248/TempDIRC.png" width="960" height="576" alt="" title="DAQmon GUI showing temperatures for each FPGA board. Only fibers 36-71 should be populated (corresponding to the South Optical Box)" /></div>
<p></p><div class="image-wrapper"><img class="image-style-plentybig" src="https://logbooks.jlab.org/files/styles/plentybig/public/2019/01/3645248/DIRCGluon04.png" width="960" height="540" alt="" title="Scaler rates in 2D histogram of Fiber (ie. module of 3 PMTs) vs pixel number (0-191 for three 64-channel PMTs)" /></div>
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