sPHENIX discussion of the superconducting solenoid

["Yip, Kin" <kinyip AT bnl.gov>]

Hi,

 

Thanks !   I just talked with Paul Orfin.   So, hopefully, the welder (et. al.) can fix the “seam” or whatever to fix the valve leak.

And we’re waiting for the two CeramTec parts to arrive to fix the leaks due to ceramic breaks.

 

Kin

 

From: Orfin, Paul <porfin AT bnl.gov>
Sent: Friday, February 25, 2022 5:26 PM
To: Than, Yatming (Roberto) <ythan AT bnl.gov>; Yip, Kin <kinyip AT bnl.gov>; Decker, Kenneth <kdecker AT bnl.gov>; Ceruti, Raymond B <rayc AT bnl.gov>; Weiss, Dan <weiss AT bnl.gov>
Cc: O'Connor, Eric <eoconnor1 AT bnl.gov>
Subject: RE: sPHENIX - solenoid valve box leaks

 

All,

 

Attached is the updated presentation on the valve box leak checking.  Thanks to everyone for their help.

 

3 leaks only now – 2 ceramic breaks; 1 valve seam weld

(Other locations were probably helium drifts)

 

Thank you,

Paul Orfin
Cryogenic Systems, Collider-Accelerator Department
Brookhaven National Laboratory
Telephone: (631) 344-2899
E-mail: porfin AT bnl.gov

 

From: Orfin, Paul
Sent: Thursday, February 17, 2022 5:57 PM
To: Than, Yatming (Roberto) <ythan AT bnl.gov>; Yip, Kin <kinyip AT bnl.gov>; Decker, Kenneth <kdecker AT bnl.gov>; Ceruti, Raymond B <rayc AT bnl.gov>; Weiss, Dan <weiss AT bnl.gov>
Cc: O'Connor, Eric <eoconnor1 AT bnl.gov>
Subject: sPHENIX - solenoid valve box leaks

 

All,

 

I want to share a presentation documenting the results of several days of leak checking.  Please review and we can have a discuss to go over it soon. 

 

I’m advocating for a vacuum leak check to start to help zero in on the leaks with more certainty. 

 

Thank you,

Paul Orfin
Cryogenic Systems, Collider-Accelerator Department
Brookhaven National Laboratory
Building 1005S, MS 1005S, Room 217
Upton, NY 11973-5000
Telephone: (631) 344-2899
Fax: (631) 344-3329 
E-mail: porfin AT bnl.gov