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Subject: sPHENIX discussion of the superconducting solenoid

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From: "Than, Yatming (Roberto)" <ythan AT bnl.gov>
To: "Yip, Kin" <kinyip AT bnl.gov>
Cc: sphenix-magnet-l <sphenix-magnet-l AT lists.bnl.gov>
Subject: Re: [Sphenix-magnet-l] daily report : ~164 K ... Slightly faster (Cryo Group has switched to use the Plant ? )
Date: Mon, 7 Mar 2016 02:31:55 +0000

I switch and added plant to the cooling loop.

"Yip, Kin" <kinyip AT bnl.gov> wrote:

Hi,

As you can see from the graph attached “2016-3-6 19-17.JPG”, the outlet temperature is ~164.8 K …

From the magnified graph “since_this_morning.JPG”, something happened around 10:30 am (this Sunday morning).

{ After looking at this for so many days, this kind of feature tells me that the Cryo group has done something. }

Apparently, they’ve switched to use the plant and it seems to be faster (changing from ~0.53 K per hour to ~0.68 K per hour) … and the

cool-down may accelerate further …

Kin

[Sphenix-magnet-l] daily report : ~164 K ... Slightly faster (Cryo Group has switched to use the Plant ? ), Yip, Kin, 03/06/2016
- Re: [Sphenix-magnet-l] daily report : ~164 K ... Slightly faster (Cryo Group has switched to use the Plant ? ), Than, Yatming (Roberto), 03/06/2016