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Re: Gas Cherenkov optics and simulation (fwd from Eugene)
Hall D PID Mail List:
On Mon, 12 Mar 2007, Curtis A. Meyer wrote:
Curtis,
I have investigated this and also Hall-B and Hall-C have and the claim
from both firms is that they will continue doing it and that there is no
plan to stop production for c4f10.
But of course none of them will give you a promise till 2025.
regards elke
> Date: Mon, 12 Mar 2007 10:28:00 -0400
> From: Curtis A. Meyer <curtis.meyer@cmu.edu>
> Reply-To: cmeyer@cmu.edu
> To: Elke-Caroline Aschenauer <elke@jlab.org>
> Cc: Paul Edward Mueller <muellerpe@ornl.gov>, Elton Smith <elton@jlab.org>,
> halld-pid@jlab.org
> Subject: Re: Gas Cherenkov optics and simulation (fwd from Eugene)
>
> Hi Everyone -
>
> This of course makes us ask the big question: "How much longer
> will anyone be making this gas?" Of course it is not possible to
> answer this, but obviously we need to consider this as we are
> likely to need this gas through 2025.
>
> Curtis
>
> On Mon March 12 2007 10:23, Elke-Caroline Aschenauer wrote:
> > Hall D PID Mail List:
> >
> > On Mon, 12 Mar 2007, Paul Edward Mueller wrote:
> >
> > Dear Paul,
> >
> > what you say is true 3M does not produce anymore C4F10, but there are 2
> > companies in europe one in england and one in germany which stil lproduce
> > it, I have got prices from them per kg, I can send them around later.
> > In genrell the price is 100$ / kg or more, depending on how much you
> > order.
> >
> > Cheers elke
> >
> >
> >
> > > Date: Mon, 12 Mar 2007 10:17:45 -0400
> > > From: Paul Edward Mueller <muellerpe@ornl.gov>
> > > To: Elton Smith <elton@jlab.org>
> > > Cc: halld-pid@jlab.org
> > > Subject: Re: Gas Cherenkov optics and simulation (fwd from Eugene)
> > >
> > > Hall D PID Mail List:
> > >
> > > according to NIM A 558 (2006) 373 3M no longer makes C4F10
> > >
> > > they recommend C4F8O
> > >
> > > On Mon, 2007-03-12 at 08:47 -0400, Elton Smith wrote:
> > > > Hall D PID Mail List:
> > > >
> > > >
> > > > ---------- Forwarded message ----------
> > > > Date: Wed, 07 Mar 2007 22:14:13 -0500
> > > > From: gen <gen@jlab.org>
> > > > To: elke@jlab.org, elton@jlab.org, davidl@jlab.org
> > > > Subject: Gas Cherenkov optics and simulation
> > > >
> > > >
> > > > I have not heard about rescheduling of the meeting proposed for
> > > > this Thursday. Meanwhile, I finished setting up the gas
> > > > Cherenkov optics. We may still need it...
> > > > Preliminary results are shown here:
> > > >
> > > > http://www.jlab.org/~gen/gluex/gas_cher_geom.html
> > > >
> > > > Eugene
> > >
> > >
> >
> > ( `,_' )+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=
> > ) `\ -
> > / '. | +
> > | `, Elke-Caroline Aschenauer =
> > \,_ `-/ -
> > ,&&&&&V Jefferson Lab +
> > ,&&&&&&&&: HALL-D 12C / F381 121-A Atlantic Avenue =
> > ,&&&&&&&&&&; Mailstop: 12H5 Hampton, VA 23664 -
> > | |&&&&&&&;\ 12000 Jefferson Ave +
> > | | :_) _ Newport News, VA 23606 Tel.: 001-757-224-1216 =
> > | | ;--' | Mail: elke@jlab.org Mobil: 001-757-256-5224 -
> > '--' `-.--. | +
> > \_ | |---' Tel.: 001-757-269-5352 =
> > `-._\__/ Fax.: 001-757-269-6248 -
> > +=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+
> >
>
> --
> Professor Curtis A. Meyer Department of Physics
> Head of Graduate Admissions Carnegie Mellon University
> curtis.meyer@cmu.edu Pittsburgh, PA 15213
>
( `,_' )+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=
) `\ -
/ '. | +
| `, Elke-Caroline Aschenauer =
\,_ `-/ -
,&&&&&V Jefferson Lab +
,&&&&&&&&: HALL-D 12C / F381 121-A Atlantic Avenue =
,&&&&&&&&&&; Mailstop: 12H5 Hampton, VA 23664 -
| |&&&&&&&;\ 12000 Jefferson Ave +
| | :_) _ Newport News, VA 23606 Tel.: 001-757-224-1216 =
| | ;--' | Mail: elke@jlab.org Mobil: 001-757-256-5224 -
'--' `-.--. | +
\_ | |---' Tel.: 001-757-269-5352 =
`-._\__/ Fax.: 001-757-269-6248 -
+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+