sPHENIX discussion of the superconducting solenoid

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

Hi, Ken,

 

Thanks for the report.

 

• We would also like to add more insulation to the HX as we can visually see some cold spots that will turn into a wet mess on the upper deck.

 

Yes, please !  While I was there watching you guys and with  you at the 3^rd floor, I was thinking about this myself 😊

 

Kin

 

 

From: Riker, Kenneth D <kenr AT bnl.gov>
Sent: Monday, December 9, 2024 6:10 PM
To: Than, Yatming (Roberto) <ythan AT bnl.gov>; Martin, Daniel <martin AT bnl.gov>; Stivala, Nicholas <stivala AT bnl.gov>; Feder, Russell <rfeder AT bnl.gov>; Sheth, Chintan <csheth AT bnl.gov>; Warkentien, Andreas F <andyw AT bnl.gov>
Cc: Yip, Kin <kinyip AT bnl.gov>
Subject: Re: Pump out for sphnix

 

All,

sPhenix status report:

Elens compressor is running on its bypass

LN2 is on and at the HX on L3 of sphenix, looks like it's controlling but not 100% sure, (LN2 is frosted)

Valve lineup is done for cooling loop to begin in the morning.

 

We will wait for the start of cooldown until morning as It's getting too late tonight.

 

We would also like to add more insulation to the HX as we can visually see some cold spots that will turn into a wet mess on the upper deck.

 

Ken and Dan

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From: Than, Yatming (Roberto) <ythan AT bnl.gov>
Sent: Sunday, December 8, 2024 4:28 PM
To: Riker, Kenneth D <kenr AT bnl.gov>; Martin, Daniel <martin AT bnl.gov>; Stivala, Nicholas <stivala AT bnl.gov>; Feder, Russell <rfeder AT bnl.gov>; Sheth, Chintan <csheth AT bnl.gov>
Subject: Re: Pump out for sphnix

 

 

each  helium bottle 225 SCF or 6372 SLiter (=atm-Liter)

 

 

Reservoir: 400L

200ft run of 1.5" NPS = 450L

3 lines = 1500 L

 

1 backfill to 1 atm = 2000L

 

You could do 3 backfills to 1 atm.

(first 2 backfills to 0.5 atm.)

The last backfill to 1 atm.

 

Looks like 1 bottle is plenty.

 

 

 

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From: Riker, Kenneth D <kenr AT bnl.gov>
Sent: Sunday, December 8, 2024 2:38 PM
To: Than, Yatming (Roberto) <ythan AT bnl.gov>; Martin, Daniel <martin AT bnl.gov>; Stivala, Nicholas <stivala AT bnl.gov>; Feder, Russell <rfeder AT bnl.gov>; Sheth, Chintan <csheth AT bnl.gov>
Subject: Re: Pump out for sphnix

 

Yes it is. I was more concerned about the volume of gas needed to backfill. That pump will get us into the 1.5” cold vapor line and into the He vessel. We might have enough gas in the ring to take from for the back fill. But we will probably have to remove LOTO for the tank farm to add gas. 

 

Get Outlook for iOS

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From: Than, Yatming (Roberto) <ythan AT bnl.gov>
Sent: Sunday, December 8, 2024 11:06:33 AM
To: Riker, Kenneth D <kenr AT bnl.gov>; Martin, Daniel <martin AT bnl.gov>; Stivala, Nicholas <stivala AT bnl.gov>; Feder, Russell <rfeder AT bnl.gov>; Sheth, Chintan <csheth AT bnl.gov>
Subject: Re: Pump out for sphnix

 

The connection is already to the large pump, is it not just shutting the valves to the Blue and Yel valveboxes, and opening this and starting the pump?

 

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From: Riker, Kenneth D <kenr AT bnl.gov>
Sent: Friday, December 6, 2024 4:30 PM
To: Than, Yatming (Roberto) <ythan AT bnl.gov>; Martin, Daniel <martin AT bnl.gov>; Stivala, Nicholas <stivala AT bnl.gov>; Feder, Russell <rfeder AT bnl.gov>; Sheth, Chintan <csheth AT bnl.gov>
Subject: Re: Pump out for sphnix

 

Dan and I went and looked at the connection for this. Is this the best way to clean out this? or would a small vacuum pump up on the platform surfice? 

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From: Than, Yatming (Roberto) <ythan AT bnl.gov>
Sent: Friday, December 6, 2024 2:06 PM
To: Riker, Kenneth D <kenr AT bnl.gov>; Martin, Daniel <martin AT bnl.gov>; Stivala, Nicholas <stivala AT bnl.gov>; Feder, Russell <rfeder AT bnl.gov>; Sheth, Chintan <csheth AT bnl.gov>
Subject: Pump out for sphnix

 

Valve v1820M. 

 

Roberto.