<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
</head>
<body dir="ltr">
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Thanks Evaristo<br>
</div>
<div id="appendonsend"></div>
<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Evaristo Cisbani <evaristo.cisbani@roma1.infn.it><br>
<b>Sent:</b> Monday, September 21, 2020 11:30 AM<br>
<b>To:</b> Marc Mcmullen <mcmullen@jlab.org><br>
<b>Cc:</b> dsg-halla_gas@jlab.org <dsg-halla_gas@jlab.org>; Gnanvo, Kondo (kg6cq) <kg6cq@virginia.edu>; Evaristo Cisbani <cisbani@jlab.org>; Jack Segal <segal@jlab.org>; Brad Sawatzky <brads@jlab.org><br>
<b>Subject:</b> [EXTERNAL] Re: gas panel and exhaust sensor locations</font>
<div> </div>
</div>
<div class="BodyFragment"><font size="2"><span style="font-size:11pt;">
<div class="PlainText">Dear Marc,<br>
<br>
sorry I missed you previous email.<br>
<br>
I try to answer some of the questions you ask, for the front INFN GEM layers:<br>
<br>
> 1. Are these dimensions for the cable tray accurate?<br>
<br>
the dimensions of the metallic cable tray look correct (they are expected<br>
to be identical in all layers).<br>
In the front layer, the single cable try is 63.8'' (~162 cm) long<br>
<br>
<br>
> 2. What is the distance between the baseline of this cable tray and the<br>
> baseline of the next cable tray when the detector is assembled? <br>
<br>
for the front layers: <br>
- the cable trays are separated by 5.53'' (~14 cm); this is the distance<br>
between layers; <br>
- the "left" and "right" cable trays on the same layer are separated by<br>
~27'' (~68 cm)<br>
<br>
<br>
> 3. Are these numbers the same for the front layers, if not what are the<br>
> dimensions?<br>
<br>
Best,<br>
Evaristo<br>
<br>
On Mon, 21 Sep 2020 13:13:28 +0000<br>
Marc Mcmullen <mcmullen@jlab.org> wrote:<br>
<br>
> Good Morning All,<br>
> <br>
> I did not received any responses to my previous email on the locations of the<br>
> gas panels. I would like this information so that I can prepare the agenda<br>
> topics for the Hall A GEM gas distribution monthly meeting. Jack could you<br>
> verify the information on the locations?<br>
> <br>
> Kondo and Evaristo, could you provide answers to the questions about the GEM<br>
> layer assemblies?<br>
> <br>
> Regards,<br>
> Marc<br>
> <br>
> ________________________________<br>
> From: Marc Mcmullen<br>
> Sent: Friday, September 11, 2020 9:19 AM<br>
> To: dsg-halla_gas@jlab.org <dsg-halla_gas@jlab.org>; Gnanvo, Kondo (kg6cq)<br>
> <kg6cq@virginia.edu>; Evaristo Cisbani <cisbani@jlab.org> Cc: Jack Segal<br>
> <segal@jlab.org>; Brad Sawatzky <brads@jlab.org> Subject: gas panel and<br>
> exhaust sensor locations<br>
> <br>
> Good Morning,<br>
> <br>
> DSG is moving forward with design plans for the GEM gas flow readout system.<br>
> I have process majority of part procurement to set up the system. Chassis,<br>
> panels, and component delivery will start within weeks.<br>
> <br>
> I would like to confirm a few details of the system installation.<br>
> <br>
> [cid:7573e0bd-2023-4ff1-84ec-54fc2882c1b7]<br>
> I have noted the proposed location for each GEM gas panel in red. Each is<br>
> located just beyond an electronics hut.<br>
> <br>
><br>
<br>
<br>
> <br>
> We will use this information to develop the exhaust sensor/multiplexer<br>
> housing.<br>
> <br>
> Regards,<br>
> Marc<br>
<br>
</div>
</span></font></div>
</body>
</html>