<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=Windows-1252">
<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);">
Dear All, <br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Sebastian already answered all the questions. This is only to share the VERY initial manual of the gas system (with some emphasis in the panel, but try to cover the whole system). Nathan wrote a description of the DMS, which is incorporated in the note. I am
pretty sure more details of the DMS will come soon.<br>
<br>
Also, as Sebastian mentioned, the note/manual needs to be updated, specially now due to some small modifications advised by Bill, but I expect from the coming tests to incorporate more instructions.
<br>
<br>
I attached AN OLD VERSION of the system (with old I meant it was the work design until a month ago). The one shown by Bill was more to detail the gas panel and doesn't include the big picture or details about the piping.
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
If there are more questions I/we are happy to try to find an answer. <br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Cheers</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
-Carlos<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> Sebastian Kuhn<br>
<b>Sent:</b> Friday, May 31, 2019 12:12 PM<br>
<b>To:</b> Bill Crahen<br>
<b>Cc:</b> Bob Miller; Carlos Ayerbe Gayoso; George Jacobs; dsg-rtpc@jlab.org; Cyril Wiggins; JIWAN POUDEL; Stephen Bültmann; Ibrahim Hakki Albayrak; Eric Christy<br>
<b>Subject:</b> Re: [Dsg-rtpc] RTPC gas system valve panel test setup diagrams for the EEL</font>
<div> </div>
</div>
<div class="" style="word-wrap:break-word; line-break:after-white-space">Dear all,
<div class=""><br class="">
</div>
<div class="">please make sure that we have ONE CONSISTENT set of drawings and operating manuals for the whole RTPC / DMS gas system (the target gas system is entirely separate). Since Carlos is the keeper of the manual, please make sure that all questions
and suggestions for improvements of that document be referred to him. He should then distribute information to all interested parties, so if you need an up-to-date drawing, he should have it.</div>
<div class=""><br class="">
</div>
<div class="">To answer some of the questions that came up below:</div>
<div class="">1) The labeling on the top drawing (front face of the RTPC) in the document attached by Bob is somewhat confusing - even to me. Maybe Cyril/Ibrahim can clarify? In any case, the BONuS12 RTPC will have</div>
<div class=""> - 4 inlet ports for drift chamber gas, that will be fed (via a quadruple split) from a SINGLE line coming from the gas panel (“to RTPC”). </div>
<div class=""> - ONE outlet port for drift gas, connected to “From RTPC”</div>
<div class=""> - one port for measuring the pressure (“To PRTCP Press Port”)</div>
<div class=""> - one inlet port for the buffer (4He) volume (“To Buffer”)</div>
<div class="">and one outlet port for the buffer (“From Helium Buffer”)</div>
<div class=""><br class="">
</div>
<div class="">2) The DMS is still under development and will be in its own, separate circuit, located physically close to the gas panel (“To DMS” and “From DMS”). For now, we should have a simple tube connecting these 2 ports with each other, perhaps T’d off
with a second line to the Pressure Transducer Pt2 (“To DMS Press Port”).</div>
<div class=""><br class="">
</div>
<div class="">3) Once BONuS12 moves to the Hall, all bubbler exhausts will indeed be fed into the general Hall B chamber gas exhaust that goes to the outside of Hall B, to avoid poisoning the PMTs etc.</div>
<div class=""><br class="">
</div>
<div class="">4) During operation in the Hall, the gas bottles will indeed be located in the relevant gas pads outside (George knows which ones). During our tests in the EEL, we will use a gas bottle already installed there. We will NOT use the Helium-4 buffer
volume part of the gas panel in the EEL - if it is to be tested, it should be tested with simple closed tubing from output to return.</div>
<div class=""><br class="">
</div>
<div class="">5) Initially, we will use the gas panel in the EEL to run the existing EG6 RTPC prototype, until the first BONuS12 RTPC becomes available (estimate: July). This EG6 prototype has NO pressure port, so we will not be able to test this until later.
Instead, it has two gas inlet ports, which again have to be T’d from the single “To RTPC” outlet port on the gas panel.</div>
<div class=""><br class="">
</div>
<div class="">6) In general, the EG6 RTPC is NOT meant to be used to test operation of the gas panel. It is just as fragile as the final RTPC (or more so), so it must not be overpressured, or otherwise operated outside of specs. All desired tests of the gas
panel should be done by either connecting single tubing from output to return ports, or by inserting a “T” if, for instance, the pressure transducers are supposed to be tested. During EG6 RTPC operation, we literally will only be using the “To RTPC” and “From
RTPC” ports on the gas panel.</div>
<div class=""><br class="">
</div>
<div class="">7) Several BONuS collaborators will be taking a pressure vessel safety course next Wednesday, after which time they will be recorded as authorized in the COO and will be able to hook up and operate the EG6 RTPC. Before that, that RTPC should remain
safely in its transport box and not be used at all. </div>
<div class=""><br class="">
</div>
<div class="">Thanks, and have a nice weekend - Sebastian</div>
<div class="">
<div><br class="">
<blockquote type="cite" class="">
<div class="">On May 31, 2019, at 10:20 AM, Bill Crahen <<a href="mailto:wcrahen@jlab.org" class="">wcrahen@jlab.org</a>> wrote:</div>
<br class="x_Apple-interchange-newline">
<div class="">
<p class="" style="font-family:TimesNewRomanPSMT; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; background-color:rgb(255,255,255); text-decoration:none">
I have been assuming the supply bottles are in or near the gas shed, although they could be in the hall. The lines running from the tanks can be tiny, the flow is next to nothing. I assumed 1/4" copper or stainless steel, but they could certainly be Nylotube
if this makes your life easier. Count is a 20/80 mix line, and a helium line. You of course have the hydrogen/deuterium line, but that is a separate system.</p>
<p class="" style="font-family:TimesNewRomanPSMT; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; background-color:rgb(255,255,255); text-decoration:none">
The bubbler exhausts on the panel could vent into the hall from an ODH perspective, but you may wish to vent outside as helium and PMT's don't like each other.<span class="x_Apple-converted-space"> </span><br class="">
</p>
<p class="" style="font-family:TimesNewRomanPSMT; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; background-color:rgb(255,255,255); text-decoration:none">
As to lines to and from the detector, only two supply lines (He and 80/20) and two return lines are needed, they can split at the detector (see attached file).<span class="x_Apple-converted-space"> </span><br class="">
</p>
<p class="" style="font-family:TimesNewRomanPSMT; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; background-color:rgb(255,255,255); text-decoration:none">
There is a device called the DMS which is also shown on the schematic- I have no information on this system other than it will contain two radioactive sources.<span class="x_Apple-converted-space"> </span><br class="">
</p>
<p class="" style="font-family:TimesNewRomanPSMT; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; background-color:rgb(255,255,255); text-decoration:none">
I am sorry I can't tell you more, but this is all I know at this time.</p>
<p class="" style="font-family:TimesNewRomanPSMT; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; background-color:rgb(255,255,255); text-decoration:none">
One note- I am guessing as to which lines are the inlet and outlet- I may have them backwards.<br class="">
</p>
<div class="x_moz-cite-prefix" style="font-family:TimesNewRomanPSMT; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; background-color:rgb(255,255,255); text-decoration:none">
On 5/31/2019 7:36 AM, Bob Miller wrote:<br class="">
</div>
<blockquote type="cite" class="" style="font-family:TimesNewRomanPSMT; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px; background-color:rgb(255,255,255); text-decoration:none">
<p class="">These drawings do not make any sense to me. <span class="x_Apple-converted-space"> </span><br class="">
</p>
<p class="">How many gas lines are there from the gas panel to outside of the Hall?</p>
<p class="">How many lines are there from the gas panel to and from the detector assembly?</p>
<p class="">Thanks,</p>
<p class="">Bob</p>
<p class=""><br class="">
</p>
<p class=""><br class="">
</p>
<div class="x_moz-cite-prefix">On 5/30/2019 1:33 PM, Bill Crahen wrote:<br class="">
</div>
<blockquote type="cite" class="">
<p class="">We actually have two drawings that are the same thing- we should kill one (PD11). As to where the supply and panel are located, that is TBD (I assume bottles are outside, but that is your call). The drawing does not specify line size or material
(it should), this should be cleaned up by Cyril.<br class="">
</p>
<div class="x_moz-cite-prefix">On 5/30/2019 12:23 PM, Bob Miller wrote:<br class="">
</div>
<blockquote type="cite" class="">
<p class="">Hi Bill,</p>
<p class="">Is there an actual drawing for the Bonus detector gas system that shows all of the gas supplied and removed from the gas panel? I am looking for a drawing that shows where the gas is stored, how it is transferred to the gas panel, and what lines
go from the gas panel to the detector.</p>
<p class="">Thanks</p>
<p class="">Bob</p>
<p class=""><br class="">
</p>
<div class="x_moz-cite-prefix">On 5/9/2019 10:52 AM, Bill Crahen wrote:<br class="">
</div>
<blockquote type="cite" class="">
<p class="">Bob and Cyril- The P&ID and the assembly need to be assigned drawing numbers for the pressure system documentation.<span class="x_Apple-converted-space"> </span><br class="">
</p>
<div class="x_moz-forward-container"><br class="">
<br class="">
-------- Forwarded Message --------
<table class="x_moz-email-headers-table" cellspacing="0" cellpadding="0" border="0">
<tbody class="">
<tr class="">
<th valign="BASELINE" nowrap="nowrap" align="RIGHT" class="">Subject:</th>
<td class="">Re: [Dsg-rtpc] RTPC gas system valve panel test setup diagrams for the EEL</td>
</tr>
<tr class="">
<th valign="BASELINE" nowrap="nowrap" align="RIGHT" class="">Date:</th>
<td class="">Wed, 8 May 2019 15:46:17 -0400</td>
</tr>
<tr class="">
<th valign="BASELINE" nowrap="nowrap" align="RIGHT" class="">From:</th>
<td class="">Sebastian Kuhn<span class="x_Apple-converted-space"> </span><a class="x_moz-txt-link-rfc2396E" href="mailto:kuhn@jlab.org"><kuhn@jlab.org></a></td>
</tr>
<tr class="">
<th valign="BASELINE" nowrap="nowrap" align="RIGHT" class="">To:</th>
<td class=""><a class="x_moz-txt-link-abbreviated" href="mailto:dsg-rtpc@jlab.org">dsg-rtpc@jlab.org</a><span class="x_Apple-converted-space"> </span><a class="x_moz-txt-link-rfc2396E" href="mailto:dsg-rtpc@jlab.org"><dsg-rtpc@jlab.org></a></td>
</tr>
<tr class="">
<th valign="BASELINE" nowrap="nowrap" align="RIGHT" class="">CC:</th>
<td class="">Carlos Ayerbe Gayoso<span class="x_Apple-converted-space"> </span><a class="x_moz-txt-link-rfc2396E" href="mailto:gayoso@jlab.org"><gayoso@jlab.org></a>, Bill Crahen<span class="x_Apple-converted-space"> </span><a class="x_moz-txt-link-rfc2396E" href="mailto:wcrahen@jlab.org"><wcrahen@jlab.org></a>,
Stephen Bültmann<span class="x_Apple-converted-space"> </span><a class="x_moz-txt-link-rfc2396E" href="mailto:sbueltma@odu.edu"><sbueltma@odu.edu></a>, Eric Christy<span class="x_Apple-converted-space"> </span><a class="x_moz-txt-link-rfc2396E" href="mailto:meric.christy@gmail.com"><meric.christy@gmail.com></a>,
Mohammad Hattawy<span class="x_Apple-converted-space"> </span><a class="x_moz-txt-link-rfc2396E" href="mailto:hattawy@jlab.org"><hattawy@jlab.org></a>, Ibrahim Hakki Albayrak<span class="x_Apple-converted-space"> </span><a class="x_moz-txt-link-rfc2396E" href="mailto:dadasibrahim@gmail.com"><dadasibrahim@gmail.com></a>,
Keith Griffioen<span class="x_Apple-converted-space"> </span><a class="x_moz-txt-link-rfc2396E" href="mailto:griff@jlab.org"><griff@jlab.org></a>, Nathan Dzbenski<span class="x_Apple-converted-space"> </span><a class="x_moz-txt-link-rfc2396E" href="mailto:ndzbe001@odu.edu"><ndzbe001@odu.edu></a></td>
</tr>
</tbody>
</table>
<br class="">
<br class="">
<div class="" style="word-wrap:break-word; line-break:after-white-space">Dear all,
<div class=""><br class="">
</div>
<div class="">here are a couple of comments on the drawings:</div>
<div class="">1) For the testing of the panel: Should we just use N2 gas for all tests? </div>
<div class="">2) For the testing with RTPC (“GEM” should be replaced with “RTPC”): The bottle labeled N2 gas should of course be 4He gas. We should probably also draw a 2nd box (where the blue and dashed green lines meet) and label it “DMS” so we know where
the DMS goes. </div>
<div class="">Other than that, it is my understanding that all we have to agree upon is the set point (and max range) for the pressure reducers PR1 and PR3 (which should be as low as possible but above the minimum allowable threshold for the MFC1 in the case
of PR1) and the relieve valves RV1 and RV2 (which should be set substantially higher so we don’t have a creeping gas loss). I don’t see any further issues, but I added a few more people to the cc who might want to add to this.</div>
<div class=""><br class="">
</div>
<div class="">Greetings - Sebastian</div>
<div class="">
<div class=""><br class="">
<blockquote type="cite" class="">
<div class="">On May 2, 2019, at 2:49 PM, George Jacobs <<a href="mailto:jacobsg@jlab.org" class="">jacobsg@jlab.org</a>> wrote:</div>
<br class="x_x_Apple-interchange-newline">
<div class="">
<div class="" style="font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">
Please find attached piping diagrams for testing the RTPC gas system valve panel in the EEL rm 125.</div>
<div class="" style="font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">
<br class="">
</div>
<div class="" style="font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">
There are 2 diagrams.<span class="x_x_Apple-converted-space"> </span><br class="">
</div>
<div class="" style="font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">
<br class="">
</div>
<div class="" style="font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">
The first is for leak checking, completing pressure systems requirements, and verifying the MFC and pressure transducers operate properly.</div>
<div class="" style="font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">
<br class="">
</div>
<div class="" style="font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">
The second diagram shows a GEM detector (Gas Electron Multiplier) installed to test the electronics.</div>
<div class="" style="font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">
<br class="">
</div>
<div class="" style="font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">
Cheers,</div>
<div class="" style="font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">
George<br class="">
</div>
<div class="" style="font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">
<br class="">
</div>
<div id="x_x_Signature" class="" style="font-family:TimesNewRomanPSMT; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none">
<div id="x_x_divtagdefaultwrapper" dir="ltr" class="" style="font-size:12pt; font-family:Calibri,Helvetica,sans-serif">
<p class="" style="margin-top:0px; margin-bottom:0px"><span id="x_x_ms-rterangepaste-start" class=""></span></p>
<div class="">--<span class="x_x_Apple-converted-space"> </span><br class="">
George Jacobs<br class="">
<span class="">Jefferson Lab (TJNAF)</span><br class="">
<span class="">STE 12</span><br class="">
<span class="">12000 Jefferson Ave.</span><br class="">
<span class="">Newport News, VA 23606</span><br class="">
<span class="">(office) 757-269-7021</span><br class="">
<span class="">(cell) 757-876-0480</span><br class="">
<span class="">(email)<span class="x_x_Apple-converted-space"> </span><a href="mailto:jacobsg@jlab.org" class="">jacobsg@jlab.org</a></span></div>
<span class=""></span><br class="">
</div>
</div>
</div>
</blockquote>
</div>
</div>
</div>
<div class="" style="word-wrap:break-word; line-break:after-white-space">
<div class="">
<div class="x_x_AppleOriginalContents">
<blockquote type="cite" class=""></blockquote>
</div>
</div>
</div>
<div class="" style="word-wrap:break-word; line-break:after-white-space">
<div class="">
<div class="">
<blockquote type="cite" class="">
<div class=""><span class="" style="font-family:TimesNewRomanPSMT; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; float:none; display:inline!important">_______________________________________________</span><br class="" style="font-family:TimesNewRomanPSMT; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none">
<span class="" style="font-family:TimesNewRomanPSMT; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; float:none; display:inline!important">Dsg-rtpc
mailing list</span><br class="" style="font-family:TimesNewRomanPSMT; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none">
<a href="mailto:Dsg-rtpc@jlab.org" class="" style="font-family:TimesNewRomanPSMT; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px">Dsg-rtpc@jlab.org</a><br class="" style="font-family:TimesNewRomanPSMT; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none">
<a href="https://nam03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmailman.jlab.org%2Fmailman%2Flistinfo%2Fdsg-rtpc&data=02%7C01%7Cskuhn%40odu.edu%7Cecba244a317d4221011108d6e5d32c5d%7C48bf86e811a24b8a8cb368d8be2227f3%7C0%7C0%7C636949092995927075&sdata=OOt5l9MuPVYaR2nB5BlgMnvNktWcvbKDpNzeSGUgvdw%3D&reserved=0" originalsrc="https://mailman.jlab.org/mailman/listinfo/dsg-rtpc" shash="IJPK0QpFuG5rdmJZN/kfNbVxXTbryBZW5kGglL5Zgl+HeQkTOIBkiN51b2244/IVn3MBPeUrRdQU0n+ifcC6WZsFFoSdfI2zrxLvV9xO88uJ6VnZ1aYAt6jQoTCT0C+eBcQCxNnFDTszCMPBbENzB6jpNrlRaHmcouncIwUk3T4=" class="" style="font-family:TimesNewRomanPSMT; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px">https://mailman.jlab.org/mailman/listinfo/dsg-rtpc</a></div>
</blockquote>
</div>
<br class="">
</div>
</div>
</div>
</blockquote>
<pre class="x_moz-signature" cols="72">--
Bob Miller
Hall B Lead Engineer
Jefferson Lab
757 822-9586
</pre>
</blockquote>
</blockquote>
<pre class="x_moz-signature" cols="72">--
Bob Miller
Hall B Lead Engineer
Jefferson Lab
757 822-9586
</pre>
</blockquote>
<span id="x_cid:539AA265-C4C3-4A79-8530-32710A346CD1@odu.edu"><DETECTOR GAS LINES.pdf></span></div>
</blockquote>
</div>
<br class="">
</div>
</div>
</body>
</html>