sPHENIX discussion of the superconducting solenoid

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

Hi,

 

Thanks Ed O’Brien/D. Phillips for sending F. Toldo to help.

 

To avoid losing things again, I’ve just shown Frank Toldo where J4/J5 cables are in 912

(and I think Paul Giannotti actually used a plastic to wrap around the connector end).   Rich

Meier helped pointing them to me.

 

I’ve also shown him the voltage tap cable (from resistor board in the half-rack that used to exist on the

platform) to the computer/DAQ racks during the low-field test (https://lists.bnl.gov/pipermail/sphenix-magnet-l/attachments/20170405/6ae42176/attachment-0002.jpg ).  It’s been sitting outdoor under the sun, rain and

snow for months (if not almost a year).

 

Frank is going to disconnect them totally tomorrow and take them back to his place to keep them.   Frank will also

test/check to see whether the voltage cable (with multiple wires inside) are good for re-use.

 

If I find and come across some more cables in the future, I’ll probably also give them to Frank for “safekeeping”.

 

We don’t touch the Cryo cables as Rich Meier told us to just leave them in where they’re in 912.   We probably cover

all the ownership this way.

 

As of now, the half-rack is nowhere to be found.  Tom will order those 3 connectors (for J10/J11/J12) from where Paul Giannotti

last ordered them.  Sonny has 1 spare left from last time.   I hope Sonny can help us make that resistor board and the voltage connections

again J     Sorry, Sonny L

 

Kin

 

 

From: Kin Yip [mailto:kinyip AT bnl.gov]
Sent: Wednesday, April 05, 2017 4:56 PM
To: sphenix-magnet-l AT lists.bnl.gov
Cc: Rau, Michael <mrau AT bnl.gov>; Toldo, Frank A <fatoldo AT bnl.gov>
Subject: Anybody has taken the half-rack/stand with the J10/J11/J12 connectors

 

Hello,

We're looking for a half-rack/stand with a resistor board, cables and connectors plugged into the J10/J11/J12 sockets in
https://collab.external.bnl.gov/sites/sPHENIX-Magnet/Pictures/Voltage%20Tap%20Connectors.jpg  ?

The half-rack or just a stand looks something like the picture attached:
 IMG_20170405_111515166.jpg

but without wheels and the electronic equipment in the picture.

It used to be up on the platform next to the Valvebox.  Sonny Dimaiuta left it for us for future use.   

When the platform came down, it has to come down with the platform.   Dave Phillips didn't know anything about it.
Sonny and I walked around Bldg. 912 yesterday and we couldn't find it.   I asked Paul Giannotti and we walked around
Bldg. 912 this morning and couldn't find it.  I asked Rich Meier and walked around 912 again this afternoon.  Rich showed
me the platform and we found some voltage-tap cables attached : 0405171528.jpg .

But there is no sign of the half-rack with resistor board and cables/connectors for J10/J11/J12.  I also talked to Dominique in SMD
and he told me that they just took off the Valvebox.


Please let me know if you have any idea about this.   Please  ??!!


Yours desperately,

Kin