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</style><article id="node-441305" class="node node-logentry article ia-n clearfix" role="article"><header class="node-header"><h1 class="node-title">
<a href="https://logbooks.jlab.org/entry/3368502" rel="bookmark">Trigger studies during last evening </a>
</h1>
</header><div class="date-vitals">
<p class="author-datetime">
Lognumber <a href="https://logbooks.jlab.org/entry/3368502" class="lognumber" data-lognumber="3368502">3368502</a>. Submitted by <a href="https://logbooks.jlab.org/user/salgado">salgado</a> on <time datetime="2015-12-18T15:17:33-0500" pubdate="pubdate">Fri, 12/18/2015 - 15:17</time>. </p>
<table class="field-vitals"><tr><th>Logbooks: </th><td><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>1. FCAL / BCAL trigger</p>
<p>The FCAL and BCAL trigger were setup and testes. We didn't have time<br />
to check/tune performance of the FCAL & BCAL trigger; the trigger was<br />
set for the nigh shift though.</p>
<p>a) FCAL has problems with the SSP connection to rocfcal12 -<br />
the link was disabled; data was taken with 11 FCAL crates in<br />
the trigger.</p>
<p>b) 12 hot channels were masked. The FCAL(1800) cosmic rate is < 70 Hz </p>
<p>c) Masks were prepared (with Adesh) to disable fcal channels (rings)<br />
around the beam pipe. We are going to test the configuration with 4<br />
rings disabled shortly.</p>
<p>d) BCAL was runing Ok. The cosmic rate for the energy 6000 counts was about<br />
900 Hz</p>
<p>e) The configuration with the BCAL & FCAL, FCAL, and BCAL triggers was setup;<br />
runs Ok with cosmics, to be checked with data (some parameters have to be<br />
tuned).</p>
<p>----------</p>
<p>2. PS trigger. </p>
<p>a) Suspicious fadc in slot 5 was replaced; the problem with taking data with<br />
the fadc mode 8 still exists (mode 7 seems to be Ok though).</p>
<p>b) during access to the hall, the PS2 crate was found to be operated<br />
at a relatively low fan speed of 2500 rpm. Fan speeds in 'adjacent'<br />
BCAL crates were about 3300. The fan speed appeared to be controlled<br />
by the control process (I was not aware about this) which prevented<br />
to increase the fan speed - the process was disabled, the speed was<br />
increase to 4000 rpm.</p>
<p>There are concerns that there could be some 'heat' related<br />
problems/damages:</p>
<p>- the fadc board, which we replaced a day ago has some indications of<br />
the leaking thermal pad </p>
<p>- the readout problems depend on the hit multiplicity (amount of processing)</p>
<p>Also, some fadc registers seem to be corrupted during the daq crash, see below<br />
(I guess that the temperature/voltages for fadc in slot 5 are not real).</p>
<p>After one of the DAQ crash</p>
<p> ...........Control........... Processing ..Temperature Alarm..<br />
Slot Temp [C] Core [V] Aux [V] Temp [C] Control Processing<br />
--------------------------------------------------------------------------------<br />
3 48.2 1.0 2.5 56.1 OK OK<br />
4 48.7 1.0 2.5 57.1 OK OK<br />
5 230.3 3.0 3.0 31980.8 *ALARM* *ALARM*<br />
6 45.3 1.0 2.5 50.2 OK OK<br />
13 48.2 1.0 2.5 57.6 OK OK<br />
14 44.3 1.0 2.5 51.2 OK OK<br />
15 40.4 1.0 2.5 50.7 OK OK<br />
16 44.8 1.0 2.5 50.2 OK OK<br />
--------------------------------------------------------------------------------</p>
<p>Not running</p>
<p> ...........Control........... Processing ..Temperature Alarm..<br />
Slot Temp [C] Core [V] Aux [V] Temp [C] Control Processing<br />
--------------------------------------------------------------------------------<br />
3 42.3 1.0 2.5 49.7 OK OK<br />
4 42.3 1.0 2.5 50.7 OK OK<br />
5 43.8 1.0 2.5 47.2 OK OK<br />
6 39.9 1.0 2.5 44.8 OK OK<br />
13 40.9 1.0 2.5 50.2 OK OK<br />
14 38.4 1.0 2.5 45.3 OK OK<br />
15 34.9 1.0 2.5 44.8 OK OK<br />
16 38.4 1.0 2.5 43.3 OK OK<br />
--------------------------------------------------------------------------------</p>
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