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RE: [SA_scat] Windows for SAXS cryostat



In addition Beryllium is extremely toxic even to touch - so no contact.
bob stroud



>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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-- 
All the best!

Bob

Professor of Biochemistry and  Biophysics
and Pharmaceutical Chemistry
S412C UCSF-GENENTECH HALL
600 16th Street
San Francisco  CA 94143-2240
415 476 4224
415 476 1902 FAX
stroud@msg.UCSF.edu
http://www.msg.ucsf.edu/stroud/index.html
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