<div class="gmail_quote">---------- Forwarded message ----------<br>From: "Evaristo Cisbani" <<a href="mailto:evaristo.cisbani@iss.infn.it">evaristo.cisbani@iss.infn.it</a>><br>Date: Nov 22, 2013 11:28 AM<br>
Subject: Re: MAROC readout from H8500 PMT<br>To: "Alexandre Camsonne" <<a href="mailto:camsonne@jlab.org">camsonne@jlab.org</a>><br>Cc: "Paolo Musico" <<a href="mailto:Paolo.Musico@ge.infn.it">Paolo.Musico@ge.infn.it</a>>, "Zein-Eddine MEziani" <<a href="mailto:meziani@temple.edu">meziani@temple.edu</a>><br>
<br type="attribution">Dear Alexandre,<br>
<br>
one MAROC card has 64 channels. We use it for the Hamamatsu H8500.<br>
<br>
I do not know what kind of PMT you intend to use. If it is a single<br>
channel, one MAROC is more than enough; you probably need some<br>
electrical adapter from the PMT output to the SAMTEC connector of the<br>
MAROC front end card.<br>
<br>
Attached is an early description of the current electronics.<br>
<br>
Cheers,<br>
Evaristo<br>
<br>
On Fri, 2013-11-22 at 10:51 -0500, Alexandre Camsonne wrote:<br>
> Sure no worries.<br>
><br>
> Is one card enough to equip 1 PMT ?<br>
> I think we would like to instrument one full PMT. The trigger might be<br>
> an issue since we want to use pipeline electronics. I will look at the<br>
> rich presentation Tom Hemmick sent us though if you have more<br>
> documentations available could you point us to them .<br>
><br>
> Dear Alexandre,<br>
><br>
> sorry for the late replay.<br>
><br>
> We can probably lend some cards (+ backplane + controller); how many<br>
> channels do you need ?<br>
><br>
> Take into account that the current version need a trigger within about<br>
> 250 ns.<br>
><br>
> In these days we are testing the timing performance of the MAROC,<br>
> which<br>
> is expected to be very interesting (about 40 ps resolution with many<br>
> photons and better than 400 ps resolution for single photons).<br>
><br>
> Most likely we are going to adopt the MAROC for the CLAS12 RICH.<br>
><br>
> Cheers,<br>
> Evaristo<br>
><br>
><br>
> On Wed, 2013-11-20 at 15:46 -0500, Alexandre Camsonne wrote:<br>
> > Hi Evaristo,<br>
> ><br>
> ><br>
> > we were discussing about the Cerenkov readout of the SoLID detector,<br>
> ><br>
> > and it seems your MAROC front end might work for us.<br>
> ><br>
> ><br>
> > Do you think it would be possible to borrow one of those front end<br>
> > board so we can evaluate if we can use it for SoLID ?<br>
> ><br>
> ><br>
> > Thank you,<br>
> ><br>
> > Alexandre<br>
> ><br>
><br>
> --<br>
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> ------------------------------------------------------------------------<br>
><br>
<br>
--<br>
Evaristo Cisbani office : <a href="tel:%2B39%2006%204990%202847" value="+390649902847">+39 06 4990 2847</a><br>
Istituto Superiore di Sanita` lab : <a href="tel:%2B39%2006%204990%202347" value="+390649902347">+39 06 4990 2347</a><br>
Department of Technology and Health fax : <a href="tel:%2B39%2006%204990%202137" value="+390649902137">+39 06 4990 2137</a><br>
and Istituto Nazionale di Fisica Nucleare Roma - gruppo Sanita`<br>
via Regina Elena 299 - 00161 Rome web : <a href="http://www.iss.infn.it/cisbani" target="_blank">www.iss.infn.it/cisbani</a><br>
Italy<br>
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