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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Hi George<br>
<br>
Thank you !<br>
<br>
Guys are working in hall B to finish the piping on the cart at this moment.<br>
<br>
I will take the existing line, the plan B you have proposed, if thing are not ready here by Thursday.<br>
<br>
Stephan<br>
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<div id="divRpF928069" style="direction: ltr;"><font face="Tahoma" size="2" color="#000000"><b>De :</b> George Jacobs [jacobsg@jlab.org]<br>
<b>Envoyé :</b> mardi 14 novembre 2017 15:26<br>
<b>À :</b> dsg-mvt@jlab.org; Aune Stephan<br>
<b>Cc :</b> Amrit Yegneswaran; dsg-internal; Patrizia Rossi; dsg-ft@jlab.org<br>
<b>Objet :</b> Re: [Dsg-internal] Fwd: help and advice for MVT gas system<br>
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<div>Hi Stehan,<br>
<br>
The pre-mix bottles and argon cylinder are ready. The pre-mix supply uses a dedicated 1/2" line to supply gas to hall B. This line terminates on level 1 space frame. This does not currently use the mixing system piping and is ready for use. That is one option
if you need gas immediately.<br>
<br>
I believe the current plan will supply gas from the pre-mix bottles via the mixing system piping once it has been completed. The pre-mix supply will be disconnected from the current dedicated line to hall B and then re-routed to the mixing system piping on
the target gas pad. At least that is my understanding of the plan.<br>
<br>
George<br>
<br>
<div class="moz-cite-prefix">On 11/13/2017 1:17 PM, Amrit Yegneswaran wrote:<br>
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<div>brian/george,<br>
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<div>see line # 11, highlighted.<br>
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<div>From this e-mail, i think stephan is worried about the gas?<br>
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<div>can you please let him know what the plans are, if there are issues, please discuss it with me.<br>
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<div>amrit<br>
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<div><b>From: </b>"Aune Stephan" <a class="moz-txt-link-rfc2396E" href="mailto:stephan.aune@cea.fr" target="_blank">
<stephan.aune@cea.fr></a><br>
<b>To: </b>"Amrit Yegneswaran" <a class="moz-txt-link-rfc2396E" href="mailto:yeg@jlab.org" target="_blank">
<yeg@jlab.org></a><br>
<b>Sent: </b>Monday, November 13, 2017 10:52:06 AM<br>
<b>Subject: </b>help and advice for MVT gas system<br>
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<pre style="direction:ltr; font-family:Tahoma; color:#000000; font-size:10pt"><ol><li class="MsoNormal"><span style="" lang="EN-US">Dear Amrit</span><span style="" lang="EN-US">
</span><span style="" lang="EN-US">
</span></li><li class="MsoNormal"><span style="" lang="EN-US">I think I need your help and advice for the MVT and FTT gas system </span><span style="" lang="EN-US">
</span><span style="" lang="EN-US">
</span></li><li class="MsoNormal"><span style="" lang="EN-US">Here in Hall B thing are going quite well for assembly, Central tracker is in magnet, so far so good. </span><span style="" lang="EN-US">
</span><span style="" lang="EN-US">
</span></li><li class="MsoNormal"><span style="" lang="EN-US">For the gas distribution system, the equipment that was design by George is almost finished and will soon be ready to be qualified. </span><span style="" lang="EN-US">
</span><span style="" lang="EN-US">
</span></li><li class="MsoNormal"><span style="" lang="EN-US">We will start using premix bottle, and go for mixing system later. </span><span style="" lang="EN-US">
</span><span style="" lang="EN-US">
</span></li><li class="MsoNormal"><span style="" lang="EN-US">It is not easy for me to understand each group responsibilities, between Hall B staff, DSG, Matt work, security. </span><span style="" lang="EN-US">
</span><span style="" lang="EN-US">
</span></li><li class="MsoNormal"><span style="" lang="EN-US">Last week George help me with efficiency by finding a simple solution to make the pressure test on our device; I can now bring thing in place.</span><span style="" lang="EN-US">
</span></li><li class="MsoNormal"><span style="" lang="EN-US">Brian as done a good job on the gas mixing system, we can now see in Eppic the system </span><span style="" lang="EN-US">
</span><span style="" lang="EN-US">
</span></li><li class="MsoNormal"><span style="" lang="EN-US">And we have decided a noise hutting on Friday here (all detector in magnet ON, and swith off one after the other to check noise) </span><span style="" lang="EN-US">
</span><span style="" lang="EN-US">
</span></li><li class="MsoNormal"><span style="" lang="EN-US">Also next week we will start alignment (SVT, MVT, CTOF, ND) survey with cosmic.</span><span style="background-color:rgb(255,255,0)" lang="EN-US">
</span></li><li class="MsoNormal"><span style="background-color:rgb(255,255,0)" lang="EN-US">Still I am a bit worried for without ad hoc gas our gaseous detectors are blind. </span><span style="background-color:rgb(255,255,0)" lang="EN-US">
</span><span style="background-color:rgb(255,255,0)" lang="EN-US">
</span></li><li class="MsoNormal"><span style="" lang="EN-US">Thank you in advance if you can help/advise me in order to have MVT and FTT breathin </span><span style="" lang="EN-US">
</span><span style="" lang="EN-US">
</span></li><li class="MsoNormal"><span style="" lang="EN-US">Best regards</span><span style="" lang="EN-US">
</span></li><li class="MsoNormal"><span style="" lang="EN-US">Stephan</span></li></ol></pre>
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<pre>_______________________________________________
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<pre class="moz-signature" cols="72">--
George Jacobs
Jefferson Lab (TJNAF)
STE 12
12000 Jefferson Ave.
Newport News, VA 23606
(office) 757-269-7115
(cell) 757-876-0480
(email) <a class="moz-txt-link-abbreviated" href="mailto:jacobsg@jlab.org" target="_blank">jacobsg@jlab.org</a>
(website) <a class="moz-txt-link-freetext" href="https://userweb.jlab.org/~jacobsg" target="_blank">https://userweb.jlab.org/~jacobsg</a></pre>
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