[Dsg-ltcc] [Dsg-internal] LTCC and C4F10 PO

[Denny Insley]

Good afternoon, 

    Since the C4F10 order has now been sent to the vendor we will obviously be running LTCC detectors.
At this time we are not sure if we will be running all or just two. My feeling is that we will likely 
be running S3 and S5 but removing S2 and S6. We will know for sure by next week Wednesday. I am certain
that the leaks seen in S2 are connection or bubbler related. For now I would suggest that we cease flow
to S2 until we can investigate further and next week concentrate on S3 and S5. We will check connections 
to all on Monday and prepare for running. When we have final configuration information I will let you know.
   
    In regards to the recovery system. I do not expect a functioning recovery system to be online before
November. Work on that system is ongoing and Bob will advise on the status as it progresses.

Regards
Denny

 

----- Original Message -----
From: "Amrit Yegneswaran" <yeg at jlab.org>
To: "dsg-ltcc" <dsg-ltcc at jlab.org>, "Bob Miller" <rmiller at jlab.org>
Cc: "Patrizia Rossi" <rossi at jlab.org>
Sent: Friday, July 20, 2018 9:02:11 AM
Subject: Re: [Dsg-ltcc] [Dsg-internal] LTCC and C4F10 PO

thanks marc. 
it appears that S2 is a 100% worse, while S3 is doing good (is 3S topped off with c4f10?) 
do you know if the re-circulation system will be ready by the time the new batch of gas arrives? 
per george the c4f10 should arrive in 6-8 wks, i.e. end of sept. 2018. 
amrit 


From: "Marc Mcmullen" <mcmullen at jlab.org> 
To: "dsg-internal" <dsg-internal at jlab.org> 
Sent: Friday, July 20, 2018 8:39:58 AM 
Subject: Re: [Dsg-internal] LTCC and C4F10 PO 



I fixed the formatting. Sector 2 is the only one with gas flow. 

On 7/19/2018 5:36 PM, Marc McMullen wrote: 




Hi Amrit, 

The C4F10 PO says it was ordered on 7/9. Please see attachment. 

Additionally, I have added the LTCC sector flow averages since S2 and 3 were reinstalled. We can go over the numbers tomorrow. 


LTCC Sectors 	daily average since 07/13/18 	
1 	3.18 	uninstalled 
2 	82.76 	N2 
3 	4.26 	C4F10 
4 	1.54 	uninstalled 
5 	0.00 	uninstalled 
6 	16.25 	uninstalled 	
	
-- 
Marc McMullen
Detector Support Group
757-269-7738 


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

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