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RE: [SA_scat] Windows for SAXS cryostat

Laurence,

avoid Beryllium. The grain boundaries in it give a high background. IF1
Beryllium from Brush-Wellmann might be good although I don't have any
experience with it. (Henderson J.Appl. Cryst. 28, 1995,820)
Kapton is a reasonable choice.

Wim

W. Bras
DUBBLE CRG @ ESRF
BP 220 F-38043 Grenoble Cedex, France
++ 33 (0)476882351 tel
++ 33 (0)476882412 FAX

> -----Original Message-----
> From: sa_scat-bounces@iucr.org [mailto:sa_scat-bounces@iucr.org]On
> Behalf Of JDB Science LLC
> Sent: samedi 29 mai 2004 13:36
> To: sa_scat@iucr.org
> Subject: [SA_scat] Windows for SAXS cryostat
>
>
> 	From: 	  lurio@physics.niu.edu
> 	Subject: 	Window scattering
> 	Date: 	May 28, 2004 5:29:43 PM EDT
> 	To: 	  small-angle@aps.anl.gov
>
> Does anyone have information on the relative merits of different window
> materials for SAXS sample enclosures. I need to put windows on a
> cryostat
> for a SAXS sample and am debating weather to use Berylium or Kapton with
> Aluminum foil for radiation shielding.  Does anyone have data on the
> SAXS
> from window materials?
>
> Larr
>
> Laurence Lurio
> Assistant Professor
> Department of Phyiscs
> Northern Illinois University
> DeKalb, IL 60115
>
> (815) 753-6492
>
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