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</style><article id="node-736590" 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/3663674" rel="bookmark">PrimEx trigger studies</a>
</h1>
</header><div class="contextual-links-wrapper"><ul class="contextual-links"><li><a href="https://logbooks.jlab.org/entry/3663674/edit?destination=email/send">Edit</a></li><li><a href="https://logbooks.jlab.org/entry/3663674/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/3663674" class="lognumber" data-lognumber="3663674">3663674</a>. Submitted by <a href="https://logbooks.jlab.org/user/somov">somov</a> on <time datetime="2019-03-05T17:08:46-0500" pubdate="pubdate"><a href="https://logbooks.jlab.org/entries?start_date=1551820126&end_date=1551827326&book=HDCCAL&book=HDLOG&book=HDTRIGGER">Tue, 03/05/2019 - 17:08</a></time>. </p>
<p class="last-update">
Last updated on <time datetime="2019-03-05T23:35:26-0500" pubdate="pubdate">Tue, 03/05/2019 - 23:35</time></p>
<table class="field-vitals"><tr><th>Logbooks: </th><td><a href="https://logbooks.jlab.org/book/hdccal">HDCCAL</a> <a href="https://logbooks.jlab.org/book/hdlog">HDLOG</a> <a href="https://logbooks.jlab.org/book/hdtrigger">HDTRIGGER</a></td></tr><tr><th>Entry Makers: </th><td>somov</td></tr></table></div>
<div class="logentry node-content">
<p>We keep on looking on the trigger performance, below are some plots.<br />
We'll need to check/fine tune the trigger when the beam is back.</p>
<p>Fig. 1 CCAL energy deposition for different trigger thresholds (CCAL trigger).</p>
<p>The energy is defined as a sum of fadc amplitudes from all<br />
channels and is given in units of adc counts</p>
<p>Fig. 2 Main production CCAL & FCAL trigger. </p>
<p>Left plot: FCAL energy as a function of the CCAL energy. The<br />
diagonal line represents the trigger threshold on the<br />
global energy deposition in CCAL&FCAL</p>
<p>There are a few suspicious channels in the FCAL, which<br />
fadc amplitudes overflow (horizontal lines on the plot).<br />
We'll check these channels.</p>
<p>Right plot: Energy sum from FCAL and CCAL. The vertical line<br />
represents the energy threshold.</p>
<p>Fig. 3 FCAL energy (from Fig. 2) for E_CCAL = 0. The vertical<br />
line represents the FCAL energy threshold. </p>
<p>--------</p>
<p>In general, trigger thresholds are relatively well reproduced.<br />
Note, it's not a real trigger emulation (I will run it later).</p>
</div>
<div class="attachment-box">
<div class="image-wrapper"><img view_mode="elog_email" class="image-style-plentybig" src="https://logbooks.jlab.org/files/styles/plentybig/public/2019/03/3663674/ccal_trig.png" width="598" height="276" alt="" title="Fig. 1 CCAL energy deposition (in units of fadc counts) for different trigger thresholds. CCAL trigger" /></div> <div class="image-wrapper"><img view_mode="elog_email" class="image-style-plentybig" src="https://logbooks.jlab.org/files/styles/plentybig/public/2019/03/3663674/prod_trig1.png" width="898" height="374" alt="" title="Fig. 2 Main production CCAL & FCAL trigger. FCAL energy as a function of the CCAL energy (left). Energy sum from FCAL and CCAL." /></div> <div class="image-wrapper"><img view_mode="elog_email" class="image-style-plentybig" src="https://logbooks.jlab.org/files/styles/plentybig/public/2019/03/3663674/fcal_prod.png" width="598" height="274" alt="" title="Fig. 3 FCAL energy (from Fig. 2) for E_CCAL = 0. " /></div> </div>
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