sPHENIX discussion of the superconducting solenoid

[Kin Yip <kinyip AT bnl.gov>]

Hi,

Who's labelled the "+" and "-" on the Leads at the top of the power supply ?   Dave Phillips asked me.  Roberto told me that he didn't remember seeing these
+/- labels when the Valvebox first arrived.

These +/- signs together with the old marker A and B as you may see from John Haggerty's picture (and others)
https://collab.external.bnl.gov/sites/sPHENIX-Magnet/Pictures/Valve%20Box.JPG

also suggested A is +ve (consistent with the document) below.   But we had an old letter from Martin Berndt who seemed to say the opposite.

Is it Sonny and Piyush who made the +ve or -ve label or ?? 

Can somebody please let us know ??  Very curious ...

Kin

On 04/26/2017 03:00 PM, Yip, Kin wrote:

Hello Carl,

 

From the BaBar Power Supply Manual, chapter 4, which you can get at \\bnl.gov\c-adnas\babar\BaBar P.S. Manual\Babar P.S. Section 4.pdf, page 2,

 

in that diagram, it seems to say Lead A is +ve   and

                                                 Lead B is –ve.

 

So, unless somebody comes up  with a different idea (with some genius rationale), I guess we just stick with this.

 

Kin

Attachment: sPHENX Mag Leads 2017-07-25.JPG
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