sPHENIX discussion of the superconducting solenoid

["Ceruti, Raymond B" <rayc AT bnl.gov>]

Good morning Kin (and everybody else on this list),

 

      We now have closed up the magnet end doghouse hopefully forever.  We also added two taped holes for relocating the temperature sensors on the leads inside the valve box doghouse as per our discussion with Paul Orfin.

 

Regards,

Ray

 

 

 

From: sPHENIX-magnet-l <sphenix-magnet-l-bounces AT lists.bnl.gov> On Behalf Of Yip, Kin
Sent: Monday, June 24, 2019 4:01 PM
To: sphenix-magnet-l AT lists.bnl.gov
Subject: Re: [Sphenix-magnet-l] sPhenix Voltage Taps Done

 

Hi,

I've just chatted with Ray on phone,  to make sure that he'll close the old doghouse (Magnet) with doors;  but just NOT the doors for the new
doghouse (Valvebox) :-)

Kin

On 6/24/19 3:28 PM, Yip, Kin wrote:

Dear Ray,

 

When will you have time to come to Bldg. 912 to close out the old doghouse,  and clean up/wrap the new doghouse (with plastic bag) --- without the two doors ?

As soon as possible, I hope ??   Tom Tallerico et. al. have finished checking what they need to check.

 

The plan and steps are the following :

 

• Close out the old doghouse --- the one connected with the Magnet Coil (and hopefully we will never need to open it again)
• For the new doghouse (the one underneath the Valvebox), you may see the present situation left by Carl et. al.  Carl said that you’d help clean it up.   Since we need to have the

chimney etc. to  connect everything with in a couple years, you can’t really do too much.  But can you please carefully/nicely wrap those cables/wires and cover the new doghouse

with plastic bag ?    As the email below, Dave asks us not to cover with the new doghouse with doors to reduce weight for the next step.

• After you finish with the two doghouses, Dave would ask riggers to move the entire Cryostat with the extension out of the present (return yoke) steel box to the
  original (BaBar) yellow-frame.   [ Dave would like to do this before the end of RHIC run (~July 15) and so it’d be great if you can finish closing up the doghouses soon. ]
• At that time, we’ll ask you again to help put on the new support brace (made by Paul Kovach) and close the doors for the new doghouse , and you can cover the top of the new doghouse
  with the cap/flange that you’ve made.
• Afterwards, we can flush the system with dry nitrogen and it’ll be stored like that for a couple years.
  
  
  

Kin

 

From: Phillips, David B
Sent: Monday, June 24, 2019 9:49 AM
To: Yip, Kin <kinyip AT bnl.gov>; sphenix-magnet-l AT lists.bnl.gov
Subject: RE: sPhenix Voltage Taps Done

 

Kin,

 

My understanding is that Paul’s transport support for the valvebox extension can’t be installed until after the cryostat is lifted from the return steel to the yellow transport frame.

So it may be better not to close the “new” doghouse to reduce the weight on the extension until after the cryostat has been moved to the transport frame.

 

Dave

 

From: sPHENIX-magnet-l <sphenix-magnet-l-bounces AT lists.bnl.gov> On Behalf Of Yip, Kin
Sent: Friday, June 21, 2019 12:40 PM
To: sphenix-magnet-l AT lists.bnl.gov
Subject: [Sphenix-magnet-l] FW: sPhenix Voltage Taps Done

 

Hi Tom Tallerico,

 

As you can see below, Carl & Fred & Joe D’ambra have finished with the voltage taps.    ( Thanks to all of them ! )

 

Please proceed as we have discussed to check on the C-connectors next Monday (by R. Meier).  When you finish

checking, please let us know so that we can ask Ray Ceruti to close the doghouses.

 

Kin

 

From: Schultheiss, Carl
Sent: Friday, June 21, 2019 11:56 AM
To: Yip, Kin <kinyip AT bnl.gov>
Cc: Mills, James A <mills AT bnl.gov>; Dimaiuta, Sebastian A <sonny AT bnl.gov>
Subject: sPhenix Voltage Taps

 

Hi,

 

   Joe Dambra and I have finished this

stage of testing of the sPhenix Magnet

Voltage Taps. The magnet hi-potted

to 520 V, and all the taps are present.

Ray can finish closing the old dog-house

and whatever is planned for the new

dog-house. When the old dog-house is

completely closed, and all the work

on the new dog-house is complete,

I think another round of testing should

be done to insure everything is OK before

we put the magnet away for its long sleep.

   I think we should buy some test equipment

so we can do this sort of testing on our own.

 

Carl Schultheiss

Principal Electrical Engineer

Collider-Accelerator Department

Brookhaven National Laboratory

 

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