sPHENIX discussion of the superconducting solenoid

[John Haggerty <haggerty AT bnl.gov>]

My notes from yesterday said that Sonny measured the coil resistance to 
be 2.53 ohms... first test passed.

-------- Forwarded Message --------
Subject: Re: BaBar questions
Date: Thu, 12 Mar 2015 08:16:39 +0100
From: fabbric <Pasquale.Fabbricatore AT ge.infn.it>
To: John Haggerty <haggerty AT bnl.gov>

John,
regarding the inductance and resistance,
you should have a sort of booklet with all controls during fabrication.
I have my copy, from which I extracted the attached page
related to  somerelevant electrical parameters measured at
different  stages of the construction.
The final coil resistance at T= 25 C is 2.51 Ohm,
the inductance 2.19 H (at any stage) and the ground
insulation 20 MegaOhm at 1 kV.

Best regards

Pasquale


Il 11/03/2015 19:56, John Haggerty ha scritto:
> Pasquale,
>
> As you know, we have the BaBar solenoid at BNL now, and we are just
> about to ship the rest of the equipment, so hopefully in a month or so
> we'll have ownership of everything associated with the magnet.  Mike
> Racine shipped us all the documentation, and we're wading through it.
>
> The engineers I'm working with are starting to ask questions that I
> can't really answer; we were wondering whether you are going to be
> traveling to the US in the near future and could stop in for day where
> we ask a lot of questions and take you to dinner, but even without
> that, whether we might collect some of our questions into an email or
> Skype call.  Let me know what might work for you.
>
> For example--somewhere in there is the coil resistance at inductance
> at 60 Hz (or whatever)--but we haven't found it yet. There are many
> other questions of forces and so on that we'll need to understand very
> thoroughly.
>
> Thanks.


--
Dr. Pasquale Fabbricatore
INFN Sezione di Genova
via Dodecaneso 33, 16146 Genova Italy
Direct tel  + 39 010 3536340
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E-mail   pasquale.fabbricatore AT ge.infn.it
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--
John Haggerty
email: haggerty AT bnl.gov
cell: 631 741 3358

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