sPHENIX discussion of the superconducting solenoid

[Kin Yip <kinyip AT bnl.gov>]

Hi,

Sonny has just informed us (with the documents) that he's finished electrical and hypot test.  ( In the past,
he's measured 0.1-2 micro-amp during hypot;  but today is a particularly good day, he's got 0.0 micro-amp. )

He's also connected the voltage taps down/up to the resistor board in his half-rack on the lower platform.

So, now Ray Ceruti is only waiting for Richard Meier and Paul Giannotti/F. Toldo to finish and check the connections
inside the doghouse  before he closes it.

Kin

-------- Forwarded Message -------- Subject: RE: Electrical Tests Date: Tue, 7 Nov 2017 14:12:32 -0500 From: Dimaiuta, Sebastian A <sonny AT bnl.gov> To: Yip, Kin <kinyip AT bnl.gov>

Hi Kin Tests are done Piyush signed off on the traveler, attached is a copy of the test and a schematic. And Ray Ceruti has the traveler.

                                                                                                                                                                                Enjoy your vacation.

                                                                                                                                                                                                             Sonny

             

 

From: Kin Yip [mailto:kinyip AT bnl.gov]
Sent: Friday, November 03, 2017 2:54 PM
To: sphenix-magnet-l AT lists.bnl.gov
Cc: Sandberg, Jon N; Dimaiuta, Sebastian A; Toldo, Frank A
Subject: Cryo hopes to do pressure test next week ... should be ready for Nov. 17 safety walkthrough ...

 

Hi,

Thanks Paul for the status report !  I'm just cc-ing to the mailing list to show people (eg. Carl/Pablo/Zeynep/Jon, Sonny/Piyush ...)
that there isn't any delay from the Cryo group :-)  

Push, push, push ... :-) 

Kin

PS:  I just walked again to the upper platform in 912 and saw a tech working quietly.  I bet when David Lissauer, Achim Franz and
others walked around in 912 yesterday, they didn't climb the staircases and therefore might have missed somebody working at the
top platform.    I didn't see the tech before I really climbed to the top.  Even one climbing only ~90% of the staircase might not have
noticed the tech.



-------- Forwarded Message --------

Subject:

RE: working to make the deadline ?

Date:

Fri, 3 Nov 2017 13:12:55 -0400

From:

Orfin, Paul <porfin AT bnl.gov>

To:

Yip, Kin <kinyip AT bnl.gov>, Than, Yatming (Roberto) <ythan AT bnl.gov>

CC:

Mills, James A <mills AT bnl.gov>

All,

 

We have made significant progress and hope to do a pressure test next week once we get control of the valves.  The majority of the mechanical tasks have been completed. We had one technician working into his lunch today.  I left the platform at 12pm and he was still there.  Electrical tasks are progressing well also.  At this point, we should be ready for a safety walk through on the 17^th. 

Thank you, Paul Orfin
Cryogenic Systems, Collider-Accelerator Department
Brookhaven National Laboratory
Telephone: (631) 344-2899

 

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