[Dsg-rich] N2 Filters

[Amrit Yegneswaran]

thanks for restoring the system to the original state, marc and george. 
we should expedite the procurement of replacement filters. 
have a good weekend. 


From: "Marc Mcmullen" <mcmullen at jlab.org> 
To: dsg-rich at jlab.org 
Sent: Friday, December 8, 2017 5:04:02 PM 
Subject: Re: [Dsg-rich] N2 Filters 



The compressed air and N2 systems are approved for use and back online. We are looking for a replacement for the filters to use on the N2 circuit. 

Thanks 


Marc 

On 12/8/2017 3:13 PM, Amrit Yegneswaran wrote: 



marc informed me that both the new N2 filters---the additional filters to ensure aerogel quality is not degraded, are leaking. 
Eli, Eli, lema sabachthani? 

george/marc please buy different, new filters ASAP. 
we should have the new filters installed before the aerogels are installed in the RICH. 

in the interim, if marco wants to do some tests with the nitrogen, we'll run the system without the additional filters. 



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-- 
Marc McMullen
Detector Support Group
757-269-7738 

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