sPHENIX discussion of the superconducting solenoid

[John Haggerty <haggerty AT bnl.gov>]

Ramesh,

There is really too much information--this is the Technical Design Report:

> http://www.slac.stanford.edu/pubs/slacreports/slac-r-457.html

and there are many pictures here:

> http://www-project.slac.stanford.edu/slacpix/BaBar/

and in that same place under cad_draw are many dwg drawings of the coil 
and flux return.

On 10/13/14 6:42 PM, Gupta, Ramesh C wrote:
> Yousef
> Thanks.
> Do you have the details of the iron in the original design?
> Best regards,
> -Ramesh
> gupta AT bnl.gov
> www.bnl.gov/magnets/staff/gupta
> Sent from my Windows Phone
> ------------------------------------------------------------------------
> From: Makdisi, Yousef I <mailto:makdisi AT bnl.gov>
> Sent: ‎10/‎13/‎2014 6:37 PM
> To: Anerella, Michael D <mailto:mda AT bnl.gov>; Haggerty, John
> <mailto:haggerty AT bnl.gov>; sphenix-magnet-l AT lists.bnl.gov
> <mailto:sphenix-magnet-l AT lists.bnl.gov>
> Cc: Gupta, Ramesh C <mailto:gupta AT bnl.gov>
> Subject: Re: [Sphenix-magnet-l] Higher current test
>
> Hello Mike,
>
>     Thanks I stand corrected. That is why we added the idea that we need a
> simulation (Ramesh's).
>
> Yousef
>
> On 10/13/14 9:03 AM, "Anerella, Michael D" <mda AT bnl.gov> wrote:
>
> > Yousef,
> > Just to be clear - I said the forces should not be higher without iron.
> > Ramesh of course is the expert and has since made some estimates.
> > Regards,
> > Mike
> >
> >
> >
> >
> > -----Original Message-----
> > From: sphenix-magnet-l-bounces AT lists.bnl.gov
> > [mailto:sphenix-magnet-l-bounces AT lists.bnl.gov] On Behalf Of Makdisi,
> > Yousef I
> > Sent: Friday, October 10, 2014 1:26 PM
> > To: Haggerty, John; sphenix-magnet-l AT lists.bnl.gov
> > Subject: Re: [Sphenix-magnet-l] Higher current test
> >
> > Hello John,
> >
> >    Mike Anerella had a brief discussion on this issue. Mike thinks with
> > no steel, there is minimal forces on the coils. But he fringe field in
> > the area could be the problem.
> >    We were thinking that one can calculate the forces as well as the
> > fringe fields to see the severity. Of course, then related issue would be
> > the need for a high current power supply as well as quench protection.
> >
> > Regards,
> >   Yousef
> >
> > On 10/10/14 1:18 PM, "John Haggerty" <haggerty AT bnl.gov> wrote:
> >
> > > I asked Pasquale what they did at Ansaldo to test the BaBar solenoid,
> > > and I asked him about possibly coming to BNL for a day or two at some
> > > point:
> > >
> > > > -------- Forwarded Message --------
> > > > Subject: Re: BaBar
> > > > Date: Fri, 10 Oct 2014 13:33:51 +0200
> > > > From: fabbric <pasquale.fabbricatore AT ge.infn.it>
> > > > To: John Haggerty <haggerty AT bnl.gov>
> > > >
> > > > John,
> > > >
> > > > so, very soon, you will have the coil in your lab. That's very good.
> > > >
> > > > Coming to the test, we did a partial test at Ansaldo without the iron
> > > > yoke.
> > > > The current was limited at 1/3 of the nominal current just for
> > > > avoiding  problems with magnetic forces. However some not negligible
> > > > fring field  was present (you need a large area around the coil  free
> > > > of magnetic materials and limited access)..
> > > >
> > > > Next year I will have to go to Fermilab. If you inform me about your
> > > > plans  I can try to couple visit to Fermilab with a visit to BNL
> > > >
> > > > Best regards
> > > >
> > > > Pasquale
> > > >
> > > > --
> > > > Dr. Pasquale Fabbricatore
> > > > INFN Sezione di Genova
> > > > via Dodecaneso 33, 16146 Genova Italy Direct tel  + 39 010 3536340
> > > > Laboratory  + 39 010 3536437 Secret.fax  + 39 010 313358
> > > > E-mail   pasquale.fabbricatore AT ge.infn.it
> > > > WEB pagehttp://www.ge.infn.it/~fabbric/
> > >
> > > --
> > > 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
> >
> > _______________________________________________
> > Sphenix-magnet-l mailing list
> > Sphenix-magnet-l AT lists.bnl.gov
> > https://lists.bnl.gov/mailman/listinfo/sphenix-magnet-l


--
John Haggerty
email: haggerty AT bnl.gov
cell: 631 741 3358