sPHENIX discussion of the superconducting solenoid

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

Hi Carl,

I just walked up to the platform to check.  I guess you're worried about the central black cable on top of the current leads cables (pink/white)

in the middle of the picture.

Those black cables are NOT your voltage taps cables --- which I saw you installed a while ago --- for the current leads, which are on the

left side (to the left of the Current Leads) on the picture (barely visible), closer to the helium tube on the left.  So, I think it's OK.

Kin

---

From: Schultheiss, Carl <carls AT bnl.gov>
Sent: Thursday, November 3, 2022 3:43 PM
To: Yip, Kin <kinyip AT bnl.gov>; sphenix-magnet-l AT lists.bnl.gov <sphenix-magnet-l AT lists.bnl.gov>
Subject: RE: [Sphenix-magnet-l] Newly modified box and compressed air blowing the fan

 

Is the voltage-tap cable up against the helium supply line

to the gas-cooled leads? If so that’s not very good.

 

Carl

 

From: sPHENIX-magnet-l <sphenix-magnet-l-bounces AT lists.bnl.gov> On Behalf Of Yip, Kin
Sent: Thursday, November 3, 2022 3:36 PM
To: sphenix-magnet-l AT lists.bnl.gov
Subject: [Sphenix-magnet-l] Newly modified box and compressed air blowing the fan

 

Hello,

 

Not sure whether everybody us aware (see picture attached) :

 

(1) we expanded the box covering the current leads;

 

(2) Chintan et. al. (Cryo) has added a tube with holes at the bottom blowing compressed (dry due to filter) to the fan.  The power to the fan was unplugged and the fan rotates due to the dry air blown.  It seems to work well to me.  At least, the moisture was not around the small helium pipes (with ceramic breaks).

 

The picture that I took was taken by me 15 minutes ago or so.

 

Kin