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Re: CDC Gas Flow
Hi Elke -
My understanding of how we plan to do this is that we simply reverse the
"in" and "out" gas line somewhere outside of the chamber. I don't think
that anything else changes.
Curtis
On Tue September 30 2008, Elke-Caroline Aschenauer wrote:
> On Tue, 30 Sep 2008, Curtis A. Meyer wrote:
>
> Dear Curtis,
>
> that sounds like a very very nice idea. the only discussion point I could
> see is do we increase any material in the detector by this. I would not
> think so, but just to ask the obvious question.
>
> cheers elke
>
>
>
> > Date: Tue, 30 Sep 2008 12:52:57 -0400
> > From: Curtis A. Meyer <cmeyer@ernest.phys.cmu.edu>
> > To: GlueX Tracking <tracking@gluex.org>
> > Cc: Gary Wilkin <wilkin@andrew.cmu.edu>
> > Subject: CDC Gas Flow
> >
> > Hi Everyone -
> >
> > after our connector discussion today, I got to thinking about
> > the gas flow through the CDC, and leaks. For reasons which
> > I do not believe we ever really justified, we always talked about
> > flowing the gas in the upstream end of the chamber, and out
> > the down stream end. This choice requires good seals around
> > all the wire feed throughs.
> >
> > I started wondering why we do not reverse the flow direction.
> > The down stream plenum is extremely easy to gas tight (nothing
> > comes through it), and if we take the gas out of the upstream
> > plenum, a small leak there is probably not a disaster.
> >
> > We should follow up on this, in particular does anyone have
> > a good reason why this can't work?
> >
> > thanks - Curtis
> > --
> > Professor Curtis A. Meyer Department of Physics
> > Phone: (412) 268-2745 Carnegie Mellon University
> > Fax: (412) 681-0648 Pittsburgh PA 15213-3890
> > cmeyer@ernest.phys.cmu.edu http://www.curtismeyer.com/
> >
>
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--
Professor Curtis A. Meyer Department of Physics
Phone: (412) 268-2745 Carnegie Mellon University
Fax: (412) 681-0648 Pittsburgh PA 15213-3890
cmeyer@ernest.phys.cmu.edu http://www.curtismeyer.com/