sPHENIX discussion of the superconducting solenoid

[Kin Yip <kinyip AT bnl.gov>]

1. While looking at the schedule, we have noticed or discussed about the following:

--- we are late in rotating the Magnet/junction-box as we don't have riggers in C-AD available to us as they're working for ATF, NSRL etc.  
     D. Phllips expects/hopes that we should be able to do the rotation next week.  This also delays the effort to build platforms (which should
     have been finished by Jun 29).

--- The purchase order for the VJ line has not been pinned yet and Ed O'Brien will look into this.

--- P. Orfin has informed us about some progress in the Cryo group including checking out the SLAC pumps, making wiring diagrams/P&ID etc.


2. P. Kovach and R. Ceruti have discussed about the leak check.  After some discussion, the consensus is that we don't agressively replace any
seals, o-rings, gasket etc.  but we'll do so when it's necessary.   R. Ceruti also needs to build something (though small) and he expects that it may
take another 2 weeks to be able to do the leak check.


3. P. Giannotti gave a presentation about all the voltage tags.   You may view the diagram that he has drawn in the Agenda page:

https://indico.bnl.gov/conferenceDisplay.py?confId=1263

Since the SLAC people have broken the wires without any labels, we're confused about 2 pairs,  VT05 vs VT06 and VT10 vs VT11, which
are pin 4 and pin 5 for J10 and J11 connectors respectively.   Though there was a lot of discussion, we didn't seem to come up with an easy
method to figure this out.   P. Joshi and P. Giannotti will work on this.


4. At the end, though not in my original agenda, Ed O'Brien brought up the topic of John Cozzolino's ANSYS/Finite-Element stress analysis
on the sPHENIX Magnet in the future sPHENIX configuration and we have enthusiastically discussed about this, even though John nor Mike
Anerella were around to explain to us.  We were trying to understand those maximum stress at various points and wondered what boundary
conditions were used etc. ... I've personally become more familiar with John's results even though the discussion might not be the most useful
as John (or person who is familiar with the calculation) was not there.   We'll try to ask/arrange with John to explain his calculations to us
(even though he'll start to work for LSST, we hope LSST would be nice to spare him a couple hours to give us a presentatioin ).