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from Fernando<br>
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<th valign="BASELINE" align="RIGHT" nowrap="nowrap">Subject: </th>
<td>ST readout update</td>
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<th valign="BASELINE" align="RIGHT" nowrap="nowrap">Date: </th>
<td>Wed, 09 May 2012 00:53:41 -0400</td>
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<th valign="BASELINE" align="RIGHT" nowrap="nowrap">From: </th>
<td>Fernando J Barbosa <a class="moz-txt-link-rfc2396E" href="mailto:barbosa@jlab.org"><barbosa@jlab.org></a></td>
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<th valign="BASELINE" align="RIGHT" nowrap="nowrap">To: </th>
<td><a class="moz-txt-link-abbreviated" href="mailto:halld-pid@jlab.org">halld-pid@jlab.org</a>, "Mark M. Ito" <a class="moz-txt-link-rfc2396E" href="mailto:marki@jlab.org"><marki@jlab.org></a>,
Werner Boeglin <a class="moz-txt-link-rfc2396E" href="mailto:boeglinw@fiu.edu"><boeglinw@fiu.edu></a>, Chuck Hutton
<a class="moz-txt-link-rfc2396E" href="mailto:huttonc@jlab.org"><huttonc@jlab.org></a></td>
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<th valign="BASELINE" align="RIGHT" nowrap="nowrap">CC: </th>
<td>Fernando J. Barbosa <a class="moz-txt-link-rfc2396E" href="mailto:barbosa@jlab.org"><barbosa@jlab.org></a>, Elton Smith
<a class="moz-txt-link-rfc2396E" href="mailto:elton@jlab.org"><elton@jlab.org></a>, Eugene Chudakov
<a class="moz-txt-link-rfc2396E" href="mailto:gen@jlab.org"><gen@jlab.org></a>, Tim Whitlatch <a class="moz-txt-link-rfc2396E" href="mailto:whitey@jlab.org"><whitey@jlab.org></a>,
Fernando J. Barbosa <a class="moz-txt-link-rfc2396E" href="mailto:barbosa@jlab.org"><barbosa@jlab.org></a></td>
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<pre>Hi all,
I have attached an update on the ST readout. Please review and provide
feedback.
We have received the first set of SiPMs (50 um) and I plan to send the
PCBs for fab by the end of this week. I am planning to get two sets
assembled (50 um) by the end of the month with one set to be shipped to
Werner. Similar assemblies will be provided for the 100 um units once
these arrive.
The designs of these PCBs (ST1 and ST2) are intended to be the final
implementations. The prototype ST3 PCB is only intended for the
prototype tests and the final version will be installed in a chassis
which will be located upstream of the target. We will need to determine
its location soon.
Chuck, I need to know the length of cable (micro-coax ribbon cable
assembly) needed to connect the ST2 to the chassis so we can order it
for the tests.
Best regards,
Fernando
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