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Re: New CDC prototypes
On Wed, 2 Apr 2008, Yves Van Haarlem wrote:
Dear Yves,
I think the question is what is the size of the prototype you want to
build and what would you like to study. cosmic data in a magnetic field or
beam on mini-cdc in B field, or ....
Because if we want to match the situation of Gluex for different things we
need different magnets.
There was for example the offer to study something at Idaho Accelerator
Center, but that needs more investigation.
cheers elke
> Date: Wed, 2 Apr 2008 10:36:07 -0400 (EDT)
> From: Yves Van Haarlem <yvhaarle@ernest.phys.cmu.edu>
> To: Simon Taylor <staylor@jlab.org>
> Cc: halld-tracking-hw@jlab.org
> Subject: Re: New CDC prototypes
>
> Hi Simon,
>
> Thanks a lot for the info. Could you give more information or a contact
> person that might know more concerning this magnet?
>
> Thanks,
> Yves
>
>
> /--------------------------------
> / Yves Van Haarlem
> _--~~--_ /
> /~/_| |_\~\ / Carnegie Mellon University
> |____________| / Department of Physics
> |[][][][][][]|:= / Wean Hall room 8404
> __| __ |__ \ Pittsburgh, PA 15213
> | ||. | == | | \ USA
> (| ||__| == | |) \
> | |[] [] == | | \ Tel.: +1 412 268-6949
> | |____________| | \ +1 412 641-9252
> /__\ /__\ \ Fax.: +1 412 681-0648
> ~~ ~~ \-----------------------------------
>
> On Wed, 2 Apr 2008, Simon Taylor wrote:
>
> > Hi, Yves.
> >
> > Regarding the availability of suitable magnets, the short answer is that it
> > would be difficult to find any magnets with sufficient magnetic field or gap
> > size or with the correct orientation for cosmic ray studies such that the
> > magnetic field would be parallel to the straws. Certainly we came up with
> > nothing truly suitable for studying the FDC. The magnet we used in Hall B has
> > a gap of about 15 cm and goes up to ~1.2 Tesla. You could in principle fit a
> > few layers of straws in there, but the magnetic field would be perpendicular
> > to the wires, so that's no good. I have a vague recollection that there may
> > be a magnet at Brookhaven that at least has a large enough gap size (48
> > inches)...
> >
> > Simon
> >
> >
> >
> > Yves Van Haarlem wrote:
> >> Hi All,
> >>
> >> As you might know we plan to build one or more smaller prototypes of the
> >> CDC in order to test the straws in a test beam and magnetic field. The
> >> first thing I would like to pin down are the dimensions of this new
> >> prototype. In order to use it inside a magnet it has to fit inside that
> >> magnet (yes indeed). I understood from last review that a magnet search was
> >> performed for the FDC so I am hoping they could give me some input on what
> >> is available.
> >>
> >> Cheers and thanks,
> >> Yves
> >>
> >>
> >> /--------------------------------
> >> / Yves Van Haarlem
> >> _--~~--_ /
> >> /~/_| |_\~\ / Carnegie Mellon University
> >> |____________| / Department of Physics
> >> |[][][][][][]|:= / Wean Hall room 8404
> >> __| __ |__ \ Pittsburgh, PA 15213
> >> | ||. | == | | \ USA
> >> (| ||__| == | |) \
> >> | |[] [] == | | \ Tel.: +1 412 268-6949
> >> | |____________| | \ +1 412 641-9252
> >> /__\ /__\ \ Fax.: +1 412 681-0648
> >> ~~ ~~ \-----------------------------------
> >
> >
>
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