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Hi George,
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<div class="">thanks for responding so quickly! - Sebastian<br class="">
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<div class="">On Feb 10, 2020, at 10:27 AM, George Jacobs <<a href="mailto:jacobsg@jlab.org" class="">jacobsg@jlab.org</a>> wrote:</div>
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The following is the ordering info for the specialty gas mixture. The Praxair part number for the special gas mixture, 20% CO2 in Helium, is HE CD20C-K. The most recent quote was $330 per cylinder with a 4-6 week lead time.</div>
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Thank you</div>
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George<br class="">
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<div class="">--<span class="Apple-converted-space"> </span><br class="">
George Jacobs<br class="">
<span style="font-family: "Times New Roman", Times, serif;" class="">Jefferson Lab (TJNAF)</span><br class="">
<span style="font-family: "Times New Roman", Times, serif;" class="">STE 12</span><br class="">
<span style="font-family: "Times New Roman", Times, serif;" class="">12000 Jefferson Ave.</span><br class="">
<span style="font-family: "Times New Roman", Times, serif;" class="">Newport News, VA 23606</span><br class="">
<span style="font-family: "Times New Roman", Times, serif;" class="">(office) 757-269-7021</span><br class="">
<span style="font-family: "Times New Roman", Times, serif;" class="">(email)<span class="Apple-converted-space"> </span><a href="mailto:jacobsg@jlab.org" class="">jacobsg@jlab.org</a></span></div>
<div class=""><span style="font-family: "Times New Roman", Times, serif;" class="">(url)<span class="Apple-converted-space"> </span><a href="https://userweb.jlab.org/~jacobsg" class="">https://userweb.jlab.org/~jacobsg</a><br class="">
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<div id="divRplyFwdMsg" dir="ltr" class=""><font face="Calibri, sans-serif" style="font-size: 11pt;" class=""><b class="">From:</b><span class="Apple-converted-space"> </span>Sebastian Kuhn <<a href="mailto:kuhn@jlab.org" class="">kuhn@jlab.org</a>><br class="">
<b class="">Sent:</b><span class="Apple-converted-space"> </span>Saturday, February 8, 2020 4:53 PM<br class="">
<b class="">To:</b><span class="Apple-converted-space"> </span>George Jacobs <<a href="mailto:jacobsg@jlab.org" class="">jacobsg@jlab.org</a>><br class="">
<b class="">Cc:</b><span class="Apple-converted-space"> </span>Carlos Ayerbe Gayoso <<a href="mailto:gayoso@jlab.org" class="">gayoso@jlab.org</a>>; Bob Miller <<a href="mailto:rmiller@jlab.org" class="">rmiller@jlab.org</a>>; Jiwan Poudel <<a href="mailto:jpoudel@jlab.org" class="">jpoudel@jlab.org</a>>;
Stephen Bültmann <<a href="mailto:sbueltma@odu.edu" class="">sbueltma@odu.edu</a>>;
<a href="mailto:dsg-rtpc@jlab.org" class="">dsg-rtpc@jlab.org</a> <<a href="mailto:dsg-rtpc@jlab.org" class="">dsg-rtpc@jlab.org</a>>; Mohammad Hattawy <<a href="mailto:mohammad.hattawy@gmail.com" class="">mohammad.hattawy@gmail.com</a>><br class="">
<b class="">Subject:</b><span class="Apple-converted-space"> </span>Re: Helium for Bonus Experiment</font>
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<div class="" style="word-wrap: break-word; line-break: after-white-space;">Dear George,
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<div class="">it’s been awhile since we checked on our RTPC drift gas supply, but today we noticed that the 2 bottles that are connected at the gas pad are both showing very low pressure (about 350 psi out of 2000 for a fresh bottle - not sure whether that
is real, but it certainly is a concern - note that we only hooked up our RTPC in the Hall today, so I’m not sure why those bottles appear nearly empty). I found 4 more gas bottles of the same type stored next to the Hall B gas shed, which should account for
the total of 6. Those should tide us over the first few weeks of the run. I believe there may be one or 2 gas bottles left in the EEL that are at most partially used. However, to avoid running out during the experiment and because of the lead time, I would
like to request that we order 4 more of the same 80%/20% He/CO2 premix and store them next to the gas shed. Let me know if you have any questions about this. </div>
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<div class="">Thanks - Sebastian<br class="">
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<div class="">On Oct 15, 2019, at 1:13 PM, George Jacobs <<a href="mailto:jacobsg@jlab.org" class="">jacobsg@jlab.org</a>> wrote:</div>
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Hi Carlos,<br class="">
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There are currently 5 full cylinders of pre-mix gas in the EEL gas cage. The last order of 4 cylinders arrived last month. These cylinders were for testing the actual detector in the EEL.<span class="x_Apple-converted-space"> </span><br class="">
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I can order more cylinders for delivery to 96B, if that is what you need. There is a 4-6 week lead time for delivery of this pre-mix gas. Does your estimate of 4 cylinders for the run take into acccount any contingency? Additional gas may be required in the
case of an accidental loss of gas for some reason such as a leak or an improper gas supply configuration. I would recommend ordering at least 6 cylinders if you estimate the need at 4, with a contingency of at least 2 cylinders just in case. The lead time
of 4-6 weeks eliminates the option of ordering more during the run. <span class="x_Apple-converted-space"> </span><br class="">
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Cheers,</div>
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George<br class="">
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<div class="">--<span class="x_Apple-converted-space"> </span><br class="">
George Jacobs<br class="">
<span class="" style="font-family: "Times New Roman", Times, serif;">Jefferson Lab (TJNAF)</span><br class="">
<span class="" style="font-family: "Times New Roman", Times, serif;">STE 12</span><br class="">
<span class="" style="font-family: "Times New Roman", Times, serif;">12000 Jefferson Ave.</span><br class="">
<span class="" style="font-family: "Times New Roman", Times, serif;">Newport News, VA 23606</span><br class="">
<span class="" style="font-family: "Times New Roman", Times, serif;">(office) 757-269-7021</span><br class="">
<span class="" style="font-family: "Times New Roman", Times, serif;">(email)<span class="x_Apple-converted-space"> </span><a href="mailto:jacobsg@jlab.org" class="">jacobsg@jlab.org</a></span></div>
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<div id="x_divRplyFwdMsg" dir="ltr" class=""><font class="" face="Calibri, sans-serif" style="font-size: 11pt;"><b class="">From:</b><span class="x_Apple-converted-space"> </span>Carlos Ayerbe Gayoso <<a href="mailto:gayoso@jlab.org" class="">gayoso@jlab.org</a>><br class="">
<b class="">Sent:</b><span class="x_Apple-converted-space"> </span>Tuesday, October 15, 2019 11:49 AM<br class="">
<b class="">To:</b><span class="x_Apple-converted-space"> </span>Bob Miller <<a href="mailto:rmiller@jlab.org" class="">rmiller@jlab.org</a>>; Sebastian Kuhn <<a href="mailto:kuhn@jlab.org" class="">kuhn@jlab.org</a>>; Jiwan Poudel <<a href="mailto:jpoudel@jlab.org" class="">jpoudel@jlab.org</a>>;
Stephen Bültmann <<a href="mailto:sbueltma@odu.edu" class="">sbueltma@odu.edu</a>>; George Jacobs <<a href="mailto:jacobsg@jlab.org" class="">jacobsg@jlab.org</a>><br class="">
<b class="">Cc:</b><span class="x_Apple-converted-space"> </span><a href="mailto:dsg-rtpc@jlab.org" class="">dsg-rtpc@jlab.org</a><span class="Apple-converted-space"> </span><<a href="mailto:dsg-rtpc@jlab.org" class="">dsg-rtpc@jlab.org</a>><br class="">
<b class="">Subject:</b><span class="x_Apple-converted-space"> </span>Re: Helium for Bonus Experiment</font>
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George,<span class="x_Apple-converted-space"> </span><br class="">
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<div class="" style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);">
may you give us the status of the He/CO2 order?</div>
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Thank you</div>
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-Carlos<br class="">
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<div id="x_x_divRplyFwdMsg" dir="ltr" class=""><font class="" face="Calibri, sans-serif" style="font-size: 11pt;"><b class="">From:</b><span class="x_Apple-converted-space"> </span>Bob Miller <<a href="mailto:rmiller@jlab.org" class="">rmiller@jlab.org</a>><br class="">
<b class="">Sent:</b><span class="x_Apple-converted-space"> </span>Tuesday, October 15, 2019 7:37 AM<br class="">
<b class="">To:</b><span class="x_Apple-converted-space"> </span>Carlos Ayerbe Gayoso <<a href="mailto:gayoso@jlab.org" class="">gayoso@jlab.org</a>>; Sebastian Kuhn <<a href="mailto:kuhn@jlab.org" class="">kuhn@jlab.org</a>>; Jiwan Poudel <<a href="mailto:jpoudel@jlab.org" class="">jpoudel@jlab.org</a>>;
Stephen Bültmann <<a href="mailto:sbueltma@odu.edu" class="">sbueltma@odu.edu</a>><br class="">
<b class="">Cc:</b><span class="x_Apple-converted-space"> </span><a href="mailto:dsg-rtpc@jlab.org" class="">dsg-rtpc@jlab.org</a><span class="Apple-converted-space"> </span><<a href="mailto:dsg-rtpc@jlab.org" class="">dsg-rtpc@jlab.org</a>><br class="">
<b class="">Subject:</b><span class="x_Apple-converted-space"> </span>Re: Helium for Bonus Experiment</font>
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<div class="" style="margin-top: 0px; margin-bottom: 0px;">Hi Carlos,</div>
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<div class="" style="margin-top: 0px; margin-bottom: 0px;">Please send an update when the He/CO2 order is confirmed and you have a delivery date.</div>
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<div class="" style="margin-top: 0px; margin-bottom: 0px;">I will check the He4 inventory in Hall B.</div>
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<div class="" style="margin-top: 0px; margin-bottom: 0px;">Regards,</div>
<div class="" style="margin-top: 0px; margin-bottom: 0px;">Bob<br class="">
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<div class="x_x_x_moz-cite-prefix">On 10/14/2019 3:11 PM, Carlos Ayerbe Gayoso wrote:<br class="">
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Hi Bob,<span class="x_Apple-converted-space"> </span><br class="">
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in principle, the 4 bottles of He/CO2 were in the list to buy them soon, and I believe they are already ordered because the delivery time was quite long. He4 not quite sure if was intended to buy it exclusively for BONuS or use the present in the hall.<span class="x_Apple-converted-space"> </span><br class="">
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Cheers</div>
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-Carlos<br class="">
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<div id="x_x_x_divRplyFwdMsg" dir="ltr" class=""><font class="" face="Calibri, sans-serif" style="font-size: 11pt;"><b class="">From:</b><span class="x_Apple-converted-space"> </span>Sebastian Kuhn<span class="x_Apple-converted-space"> </span><a class="x_x_x_moz-txt-link-rfc2396E" href="mailto:kuhn@jlab.org"><kuhn@jlab.org></a><br class="">
<b class="">Sent:</b><span class="x_Apple-converted-space"> </span>Monday, October 14, 2019 2:12 PM<br class="">
<b class="">To:</b><span class="x_Apple-converted-space"> </span>Carlos Ayerbe Gayoso<span class="x_Apple-converted-space"> </span><a class="x_x_x_moz-txt-link-rfc2396E" href="mailto:gayoso@jlab.org"><gayoso@jlab.org></a>; Jiwan Poudel<span class="x_Apple-converted-space"> </span><a class="x_x_x_moz-txt-link-rfc2396E" href="mailto:jpoudel@jlab.org"><jpoudel@jlab.org></a>;
Stephen Bültmann<span class="x_Apple-converted-space"> </span><a class="x_x_x_moz-txt-link-rfc2396E" href="mailto:sbueltma@odu.edu"><sbueltma@odu.edu></a><br class="">
<b class="">Subject:</b><span class="x_Apple-converted-space"> </span>Fwd: Helium for Bonus Experiment</font>
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<div class="" style="word-wrap: break-word; line-break: after-white-space;">Can you reply to Bob (with cc to me).?
<div class="">Thanks - Sebastian<br class="">
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<div class="">Begin forwarded message:</div>
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<div class="" style="margin: 0px;"><span class=""><b class="">From:<span class="x_Apple-converted-space"> </span></b></span><span class="">Bob Miller <<a href="mailto:rmiller@jlab.org" class="">rmiller@jlab.org</a>><br class="">
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<div class="" style="margin: 0px;"><span class=""><b class="">Subject:<span class="x_Apple-converted-space"> </span></b></span><span class=""><b class="">Helium for Bonus Experiment</b><br class="">
</span></div>
<div class="" style="margin: 0px;"><span class=""><b class="">Date:<span class="x_Apple-converted-space"> </span></b></span><span class="">October 14, 2019 at 8:11:15 AM EDT<br class="">
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<div class="" style="margin: 0px;"><span class=""><b class="">To:<span class="x_Apple-converted-space"> </span></b></span><span class="">Sebastian Kuhn <<a href="mailto:kuhn@jlab.org" class="">kuhn@jlab.org</a>><br class="">
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<div class="">Hi Sebastian,<br class="">
<br class="">
Based on the Bonus flow requirement of 1 gas exchange per hour, the experiment will need 4 bottles of He4/CO2 (K bottles, 2000 psi). The experiment will also need 1 bottle of He4.<br class="">
<br class="">
Has this gas been ordered?<br class="">
<br class="">
Thanks,<br class="">
<br class="">
--<span class="x_Apple-converted-space"> </span><br class="">
Bob Miller<br class="">
Hall B Lead Engineer<br class="">
Jefferson Lab<br class="">
757 822-9586<br class="">
<br class="">
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<pre class="x_x_x_moz-signature" cols="72">--
Bob Miller
Hall B Lead Engineer
Jefferson Lab
757 822-9586
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