<html><body><div style="font-family: arial,helvetica,sans-serif; font-size: 14pt; color: #000000"><div>Hi Marc,</div><div><br data-mce-bogus="1"></div><div>I have arranged for A110 in Cebaf Center. It might be best to sit down and talk around a table so that we can all get on the same page. Is Maury part of this effort?</div><div><br data-mce-bogus="1"></div><div>Thanks</div><div><br></div><div data-marker="__SIG_PRE__">David Meekins<br>Staff Scientist<br>Thomas Jefferson National Accelerator Facility<br>12000 Jefferson Ave<br>Newport News Va. 23606<br><br>Office: 757-269-5434<br>Cell: 757-968-9076</div><br><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><b>From: </b>"Marc McMullen" <mcmullen@jlab.org><br><b>To: </b>"David Meekins" <meekins@jlab.org>, "George Jacobs" <jacobsg@jlab.org><br><b>Cc: </b>dsg-rich@jlab.org, "oren" <oren@jlab.org><br><b>Sent: </b>Monday, November 21, 2016 10:11:50 AM<br><b>Subject: </b>Re: [Dsg-rich] RICH Pressure calculations<br></div><br><div data-marker="__QUOTED_TEXT__"><p>Yes we can, lets meet at the RICH in EEL 125 at 1:30? I'll ask
Brian Eng (DSG Deputy) and Tyler Lemon (DSG RICH Contact) to join
us if possible.<br>
</p>
<br>
<div class="moz-cite-prefix">On 11/21/2016 9:51 AM, David Meekins
wrote:<br>
</div>
<blockquote cite="mid:1930750170.727463.1479739876992.JavaMail.zimbra@jlab.org">
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<div>HI Marc and George,</div>
<div><br>
</div>
<div>Unfortunately changing the relief set pressure does not
necessarily mean that the system will be excepted from the
program. I have seen some incorrect information moving in
these e-mails. It would be best if we could all sit down and
formally decide what needs to be done and map out all parts of
the system. Wording like downstream of the bottle must be
determined by a DA are not correct. Also there are no exempt
systems. They are either excluded or excepted.</div>
<div><br>
</div>
<div>Do you all have time today to sit down for about 30 min to
get a detailed work plan together?</div>
<div><br>
</div>
<div>Thanks</div>
<div><br>
</div>
<div>David Meekins<br>
Staff Scientist<br>
Thomas Jefferson National Accelerator Facility<br>
12000 Jefferson Ave<br>
Newport News Va. 23606<br>
<br>
Office: 757-269-5434<br>
Cell: 757-968-9076</div>
<br>
<hr id="zwchr">
<div><b>From: </b>"George Jacobs"
<a class="moz-txt-link-rfc2396E" href="mailto:jacobsg@jlab.org" target="_blank"><jacobsg@jlab.org></a><br>
<b>To: </b>"Marc McMullen" <a class="moz-txt-link-rfc2396E" href="mailto:mcmullen@jlab.org" target="_blank"><mcmullen@jlab.org></a>, "David
Meekins" <a class="moz-txt-link-rfc2396E" href="mailto:meekins@jlab.org" target="_blank"><meekins@jlab.org></a><br>
<b>Cc: </b><a class="moz-txt-link-abbreviated" href="mailto:dsg-rich@jlab.org" target="_blank">dsg-rich@jlab.org</a><br>
<b>Sent: </b>Monday, November 21, 2016 9:11:19 AM<br>
<b>Subject: </b>Re: [Dsg-rich] RICH Pressure calculations<br>
</div>
<br>
<div>I plan on replacing the 50
psi relief valve with a 15 psi relief. Then we will set the
pressure regulator to 10 psi instead of 15 psi. I plan on
making this change to all the new N2 purge systems hall B.<br>
<br>
This is to exempt these systems IAW chapter 6151 of the
ES&H manual.<br>
<br>
George<br>
<br>
<div class="moz-cite-prefix">On 11/21/2016 7:37 AM, Marc
McMullen wrote:<br>
</div>
<blockquote cite="mid:1893748327.694028.1479731846962.JavaMail.zimbra@jlab.org">
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<div>Thanks Dave,</div>
<div><br>
</div>
<div>Perhaps you and I should meet with George, you can
then go into detail about what parts may need changing.
If you have a time that is good for you, let us know.</div>
<div><br>
</div>
<div>Marc McMullen<br>
Physics Division<br>
Detector Support Group<br>
7738</div>
<div><br>
</div>
<hr id="zwchr">
<div><b>From: </b>"David Meekins" <a class="moz-txt-link-rfc2396E" href="mailto:meekins@jlab.org" target="_blank"><meekins@jlab.org></a><br>
<b>To: </b>"Marc McMullen" <a class="moz-txt-link-rfc2396E" href="mailto:mcmullen@jlab.org" target="_blank"><mcmullen@jlab.org></a><br>
<b>Sent: </b>Sunday, November 20, 2016 3:13:22 PM<br>
<b>Subject: </b>Re: RICH Pressure calculations<br>
</div>
<div><br>
</div>
<div>
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<div>Hi Marc,</div>
<br>
<div>It seems that Patrizia is away from the lab. I do
not have an estimate for the time this will take but
it will be significant. I am working on it nights
and weekends to make it happen. I don't know if I
will make the December review though. This system
will have to be tested and inspected which will not
be a trivial thing. Please note that the mixed
materials in the Swagelok fittings are not in
compliance with manufacturer's catalog/manuals and
may have to be replaced with brass ferrules and
copper tubing.</div>
<br>
<div>David Meekins<br>
Staff Scientist<br>
Thomas Jefferson National Accelerator Facility<br>
12000 Jefferson Ave<br>
Newport News Va. 23606<br>
<br>
Office: 757-269-5434<br>
Cell: 757-968-9076</div>
<br>
<hr id="zwchr">
<div><b>From: </b>"Marc McMullen" <a class="moz-txt-link-rfc2396E" href="mailto:mcmullen@jlab.org" target="_blank"><mcmullen@jlab.org></a><br>
<b>To: </b>"David Meekins" <a class="moz-txt-link-rfc2396E" href="mailto:meekins@jlab.org" target="_blank"><meekins@jlab.org></a><br>
<b>Cc: </b><a class="moz-txt-link-abbreviated" href="mailto:dsg-rich@jlab.org" target="_blank">dsg-rich@jlab.org</a><br>
<b>Sent: </b>Wednesday, November 16, 2016 2:20:02
PM<br>
<b>Subject: </b>Re: RICH Pressure calculations<br>
</div>
<br>
<div>Hi Dave, Have you had a chance to communicate
with Patrizia on the RICH design authority work? DSG
management is trying to prepare scheduling for the
near future, so if you have an estimate on the time
required. That would provide some valuable
information. Thanks, Marc McMullen Physics Division
Detector Support Group 7738 ----- Original Message
----- From: David Meekins To: Marc McMullen Sent:
Mon, 14 Nov 2016 12:02:46 -0500 (EST) Subject: Re:
RICH Pressure calculations Hi Mark, Are you
available today to talk about this. I don't have any
information regarding this system. Thanks David
Meekins Staff Scientist Thomas Jefferson National
Accelerator Facility 12000 Jefferson Ave Newport
News Va. 23606 Office: 757-269-5434 Cell:
757-968-9076 From: "Marc McMullen" To: <a class="moz-txt-link-abbreviated" href="mailto:dsg-rich@jlab.org" target="_blank">dsg-rich@jlab.org</a>,
"David Meekins" Sent: Monday, November 14, 2016
8:57:33 AM Subject: RICH Pressure calculations Good
Morning Dave, Patrizia has informed the DSG that you
will be working on the RICH pressure calculations.
George says he has sent you information needed to
make the calculations. Please let us know if there
is something we can do to help expedite the process.
Thanks, -- Marc McMullen Detector Support Group
757-269-7738</div>
</div>
<br>
</div>
</div>
<br>
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</pre>
</blockquote>
<br>
<pre class="moz-signature">--
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/%7Ejacobsg" target="_blank">https://userweb.jlab.org/~jacobsg</a></pre>
<br>
</div>
</div>
</blockquote>
<br>
<pre class="moz-signature">--
Marc McMullen
Detector Support Group
757-269-7738</pre><br></div></div></body></html>