sPHENIX discussion of the superconducting solenoid

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

Hi,

Hearing this after getting off my flight from Kathmandu to HK, it's exhilarating 😁 I felt sorry that I couldn't see and learn how you guys opened that flange by just a quarter of an inch and was still able to replace the O-ring ?! 

Thanks to all and I send this to our mailing list for record keeping.  I've also inserted it into our calendar.

Kin

PS: 

And I couldn't but continue to amaze at how important this pesky O-ring --- which caused Challenger to break apart --- is !

------ Original message------

From: Mills, James A

Date: Wed, Nov 22, 2017 06:16

To: Than, Yatming (Roberto);Ceruti, Raymond B;Phillips, David B;

Cc: Orfin, Paul;VanEssendelft, Melvin J;Anerella, Michael D;Yip, Kin;Kobasiuk, Frederick D;Anerella, Michael D;Van Kuik, Brian;

Subject:RE: sPHENIX Magnet Vacuum Leak Repair

OK, great, thanks Roberto and many thanks to the entire team working on this. 

 

Best,

Jim

 

From: Than, Yatming (Roberto)
Sent: Tuesday, November 21, 2017 3:44 PM
To: Mills, James A; Ceruti, Raymond B; Phillips, David B
Cc: Orfin, Paul; VanEssendelft, Melvin J; Anerella, Michael D; Yip, Kin; Kobasiuk, Frederick D; Anerella, Michael D; Van Kuik, Brian
Subject: RE: sPHENIX Magnet Vacuum Leak Repair

 

The rate of is less than 1 Torr/hr currently at 5.5 Torr

It should come to equilibrium below 14 Torr if it just water vapor outgassing.

 

 

 

 

Roberto Than

Cryogenic Systems, Collider-Accelerator Department
Brookhaven National Laboratory
Building 1005S, MS 1005S, Room 212
Upton, NY 11973-5000
Telephone: (631) 344-7165
Cell 631-487-6842 
E-mail: ythan AT bnl.gov

 

From: Mills, James A
Sent: Tuesday, November 21, 2017 3:16 PM
To: Ceruti, Raymond B <rayc AT bnl.gov>; Phillips, David B <phillips AT bnl.gov>
Cc: Than, Yatming (Roberto) <ythan AT bnl.gov>; Orfin, Paul <porfin AT bnl.gov>; VanEssendelft, Melvin J <mvaness AT bnl.gov>; Anerella, Michael D <mda AT bnl.gov>; Yip, Kin <kinyip AT bnl.gov>; Kobasiuk, Frederick D <kobasiuk AT bnl.gov>; Anerella, Michael D <mda AT bnl.gov>
Subject: RE: sPHENIX Magnet Vacuum Leak Repair

 

Great news Ray!  Thank you for taking care of this so quickly and getting us back on line.

 

Jim

 

From: Ceruti, Raymond B
Sent: Tuesday, November 21, 2017 2:44 PM
To: Phillips, David B <phillips AT bnl.gov>
Cc: Mills, James A <mills AT bnl.gov>; Than, Yatming (Roberto) <ythan AT bnl.gov>; Orfin, Paul <porfin AT bnl.gov>; VanEssendelft, Melvin J <mvaness AT bnl.gov>; Anerella, Michael D <mda AT bnl.gov>; Yip, Kin <kinyip AT bnl.gov>; Kobasiuk, Frederick D <kobasiuk AT bnl.gov>; Anerella, Michael D <mda AT bnl.gov>
Subject: RE: sPHENIX Magnet Vacuum Leak Repair

 

Hi All,

 

     This morning we found that the O ring in the joint between the extension tube and outer connection box was defective.  Subsequently, a new one was installed and Paul started pumping the insulating vacuum down.  We checked back later after lunch and it now appears to be behaving normally.

 

Have a great holiday weekend one and all,

Ray

 

 

 

From: Phillips, David B
Sent: Monday, November 20, 2017 5:00 PM
To: Ceruti, Raymond B
Cc: Mills, James A; Than, Yatming (Roberto); Orfin, Paul; VanEssendelft, Melvin J; Anerella, Michael D; Yip, Kin; Kobasiuk, Frederick D
Subject: sPHENIX Magnet Vacuum Leak Repair

 

Ray,

 

Attached is the plan for the repair of the sPHENIX Magnet vacuum leak we discussed today.

I also put a paper copy in the folder with EWP SS2017-201, which is hanging by “dog house”.

 

Dave

 

David Phillips

Building 911B

Upton, NY 11973

631-344-4671, Fax 631-344-5954, Cell 631-804-9477

On site pager 344-3456 then 4267 then your number