Re: Guinier geometry and Rietveld
Larry W. Finger ( (no email) )
Mon, 16 Mar 1998 11:27:01 -0500
At 02:59 PM 3/12/98 -0700, you wrote:
>Hi all,
>
>I am interested in refining x-ray spectra obtained from a Guinier
>diffractometer with a scintillation counter. Does anyone know if this is
>routine, and if so, does anyone have instrument parameters for the camera?
>The most helpful would be an instrument parameter file for GSAS, but any
>information and suggestions would be appreciated. Thank you.
>
> Sincerely,
>
> - Kurt Leinenweber
>
One note of caution for Guinier users. The axial-divergence asymmetry
parameters in GSAS will not work because they assume a constant sample to
detector distance, conditions that are not met in Guinier geometry,
Larry
--Larry W. Finger finger@gl.ciw.eduGeophysical Laboratory Phone: +1 (202) 686-2410 X 24645251 Broad Branch Road N.W. FAX: +1 (202) 686-2419Washington, DC 20015-1305, USA http://granite.ciw.edu/~finger/ http://btgix8.bgi.uni-bayreuth.de/~lafi