Dec 20, 2010 Replacement Solenoid

Items for followup from previous meeting

1. None

Tentative Agenda

1. Background (Elton)
2. Discussion of items Ettore sent via e-mail

Date: Tue, 14 Dec 2010 17:12:03 -0500
From: Ettore Salpietro <ettore@jlab.org>
To: Elton Smith <elton@jlab.org>, George Biallas <biallas@jlab.org>,
   Tim Whitlatch <whitey@jlab.org>
Subject: Re: Resources for new solenoid (fwd)

Dear All
We will carry out a scoping study to compare a solenoid made of 
Rutherford and CIC conductors.
Very likely the solenoid with CICC  will require current of~ 15 kA and 
forced flow super-critical He cooling.
In addition HTS current leads could used. It is therefore necessary to 
asses the impact of this choices on the other plants( power supply, 
cryogenics, buildings).
In particular I would be interested to have your reaction to the 
following operating conditions of the solenoid:
Conductor current~15 kA
Forced flow cooling inlet temperature 4.5K,total mass flow rate < 10 
   gr/sec, inlet pressure < 10 bars, pressure drop~2 bars.
Provide He gas at 20 or ~70K for the HTS bus cooling .
Power supply, bus bar routing and switches for fast discharge shall also 
be considered.
Thanks
Ettore

Minutes

Attending: Ettore, Elton, George, Tim, Jonathan, Elliott