[Dsg-mvt] MVT gas mixing system P&I and list of components

[Stepan Stepanyan]

Marc,

Thanks for the clarification.

Stepan

> On Mar 23, 2017, at 10:22 PM, Marc McMullen <mcmullen at jlab.org> wrote:
> 
> Hi Stepan,
> 
> George explained what you were describing to us in the weekly DSG status meeting. George says the full system will be purchased, but maybe not all in the beginning. This is the minimum needed to get the MVT gas controls system working. 
> 
> Thanks,
> 
> Marc McMullen
> Physics Division
> Detector Support Group
> 7738
> 
> From: "Stepan Stepanyan" <stepanya at jlab.org>
> To: "Marc McMullen" <mcmullen at jlab.org>, "burkert" <burkert at jlab.org>
> Sent: Thursday, March 23, 2017 5:43:44 PM
> Subject: Re: [Dsg-mvt] MVT gas mixing system P&I and list of components
> 
> Marc,
> 
> Last Friday at the Hall-B TCB meeting we came to the conclusion that we have to go with the full design, not just "lite".
> What changed since then.
> 
> Thanks, Stepan
> 
> On 3/23/17 5:34 PM, Marc McMullen wrote:
> Hi Amrit,
> 
> I have reviewed George's MVT Lite list and come up with a stripped down controls addendum to the Gas Shed cRIO set up. Cost is ~$3K.
> 
> Thanks,
> 
> Marc
> 
> 
> On 3/22/2017 9:10 AM, George Jacobs wrote:
> Hi Dave,
> 
> See attached MVT gas mixing system P&I along with the list of components.
> 
> The isobutane, C4H10,  is supplied as a low pressure cylinder containing 116 lbs of liquid. I have attached the PT curve for isobutane.
> 
> The CF4 is supplied as a high pressure cylinder, containing 70 lbs of liquid. According to the vendor catalog, cylinder pressure is 1800 psi, but the vapor pressure is listed as 2000 psi. 
> 
> George
> -- 
> George Jacobs
> Jefferson Lab (TJNAF)
> STE 12
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> 
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> 
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> 
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> 
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> -- 
> Marc McMullen
> Detector Support Group
> 757-269-7738
> 
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