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<div>Compton DAQ -- Bob's perspective -- Aug 22, 2019<br>
<br>
I can work 25% of my time on this. I think Alex can, too.<br>
<br>
Independent of CMU DAQ, self-contained, has photons and electrons.<br>
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<div>Photons</div>
<div><br>
Used a JLab Flash ADC to read the photon signal<br>
<br>
Passively split photon signal, one copy to new cnt-mode DAQ,<br>
other copy to CMU DAQ.<br>
<br>
This worked about 3 years ago (not as sophisticated as CMU DAQ) <br>
<br>
Saw pulse-height spectrum<br>
<br>
Asymmetries<br>
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<div>For electron detector, we plan to use VETROC.<br>
<br>
VETROC was not yet deployed in the counting-mode DAQ, but<br>
<br>
VETROC is being used in the GRINCH detector. <br>
(Scott Barcus, Ben Raydo, Alex, Bob)<br>
<br>
Can transfer VETROC experience to new DAQ.<br>
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<div>Significant software work needs to be done. The analyzer largely<br>
non-existent except for fragments to look at FADC<br>
and VETROC data.<br>
<br>
<br>
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Bob<br>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> halla_compton <halla_compton-bounces@jlab.org> on behalf of Dave Gaskell <gaskelld@jlab.org><br>
<b>Sent:</b> Thursday, August 22, 2019 9:04 AM<br>
<b>To:</b> halla_compton@jlab.org <halla_compton@jlab.org><br>
<b>Subject:</b> Re: [halla_compton] Hall A Compton meetings Wednesday and Thursday</font>
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<div class="PlainText">Hi everyone -<br>
<br>
Reminder that there will be another meeting today to discuss plans for <br>
trying to use the electron detector during CREX. We will meet in F226 <br>
again at 11 am - same Bluejeans information as yesterday.<br>
<br>
I did not put an agenda on the wiki, but I expect the main topics to be:<br>
<br>
1. Detectors - what will we use/test? When will they be ready for <br>
testing at JLab.<br>
2. DAQ readiness/preparations<br>
3. Analysis?<br>
4. Workforce - who is available to work on this<br>
<br>
Regards,<br>
Dave<br>
<br>
On 8/20/19 4:56 PM, Dave Gaskell wrote:<br>
> Hi everyone -<br>
><br>
> There will be a couple Hall A Compton meetings in the next couple days.<br>
><br>
> The first will be tomorrow (Wednesday, August 21) at 11 am EDT - this <br>
> meeting will focus on the Compton status and data from the ongoing <br>
> run. The agenda is on the wiki:<br>
><br>
> <a href="https://hallaweb.jlab.org/wiki/index.php/Wednesday,_August_21,_2019,_11:00_am_EDT" id="LPlnk596188" class="OWAAutoLink" previewremoved="true">
https://hallaweb.jlab.org/wiki/index.php/Wednesday,_August_21,_2019,_11:00_am_EDT</a>
<br>
><br>
><br>
> Those on site can meet in room F226, Bluejeans link: <br>
> <a href="https://bluejeans.com/140287970" id="LPlnk544910" class="OWAAutoLink" previewremoved="true">
https://bluejeans.com/140287970</a><br>
><br>
> The second meeting will be Thursday (August 22), also at 11 am EDT. <br>
> The focus of this meeting will be to discuss plans for installing and <br>
> testing the electron detector for the upcoming CREX run. This meeting <br>
> will also be in room F226, with the same Bluejeans connection.<br>
><br>
> Regards,<br>
> Dave<br>
<br>
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