sPHENIX discussion of the superconducting solenoid

["Than, Yatming (Roberto)" <ythan AT bnl.gov>]

John,
If the coax transfer line is not in the first batch of shipment, you will 
better try and get the other equipment shipped earlier.
Roberto

-----Original Message-----
From: sphenix-magnet-l-bounces AT lists.bnl.gov 
[mailto:sphenix-magnet-l-bounces AT lists.bnl.gov] On Behalf Of John Haggerty
Sent: Thursday, October 02, 2014 3:06 PM
To: sphenix-magnet-l AT lists.bnl.gov
Subject: [Sphenix-magnet-l] Magnet meeting 2014.10.01

Sorry again for the confusion about the meeting time, I've put on my calendar 
a note to send a reminder the Monday before a meeting.

Paul told us that the thermal shield tools were delayed in the shops but are 
being boxed to be sent to SLAC now; they should be there by early next week.  
If everything goes smoothly from here, the valve box and solenoid could be 
shipped on Oct 13 or 20.  I think Mike said that the contract for the rest of 
the equipment (which can be shipped by conventional means) is not placed; 
we'll want some of that in early 2015 so the next order of business for 
shipping is to get that here.

Mike showed some slides that show the schedule and budget for bringing the 
magnet here, constructing and installing a modified chimney in building 912, 
and performing a lower power test of the system.

We discussed at some length the advantages and disadvantages of testing with 
the original chimney first, and then changing to the sPHENIX compatible 
chimney.  We would like to fit the low power test into a period of time which 
is likely to end around June or July 2015 when the cryo plant in 912 is not 
needed for the ERL due to repairs on the gun. 
Right now, we think Paul has completed 90% of the design is done for the 
"final" chimney, and we have a good chance of doing the initial tests with 
that, which would save time and money over testing twice.  Don will check on 
the lengths of the new horizontal extension of the chimney to make sure it's 
compatible with all the variations of the sPHENIX HCAL that we are 
considering.

Dave showed a new drawing of the 912 floor taking into account the longer 
chimney extension.  We discussed building a support structure for the 
chimney; probably this will have to be done by CAD, since it will be reviewed 
and inspected in CAD space.

Bob Lambiase confirmed that we have a power supply appropriate for the low 
power test.  We do not believe quench protection will be necessary for the 
test.  The cryostat does not have an ASME stamp (as far as we can tell), and 
so will have to be certified for ASME equivalency (I think I got the 
terminology correct).  [After the meeting, it occurred to me that we might 
want to use the test to test the instrumentation, like the temperature 
sensors and strain gauges, so we probably do need some PLC work.]

Mike will present the plans for moving and testing the magnet at the sPHENIX 
Project Management Group (PMG) meeting next Tuesday, October 7 in the Orange 
Room in Physics.  Roberto will make a few slides showing the testing schedule 
and costs.

Next magnet meeting: Wed Oct 15 1pm at SMD.

--
John Haggerty
email: haggerty AT bnl.gov
cell: 631 741 3358
_______________________________________________
Sphenix-magnet-l mailing list
Sphenix-magnet-l AT lists.bnl.gov
https://lists.bnl.gov/mailman/listinfo/sphenix-magnet-l