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Re: [sdpd] simple questions

Hello Guilhem, 

You can have a look at the NIST web site. They sell standard reference
materials 
for X-ray diffraction:

http://ois.nist.gov/srmcatalog/tables/view_table.cfm?table=209-1.htm

You can also read the archives of the rietveld mailing list, you'll find
several discussions 
about refence materials and resolution:

http://www.cristal.org/forum/rietveld_l/index.html


>?   Where to find standards for  instrumental resolution calibration ? Si
>from classical providers  seems to give poor results (FWHM equal in the
>case of 0.018  or 0.05 resolution slits) while ZrO2 synthesised in our 
>laboratory gave better results.     
>        




------------------------------------------------------------------------
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Patrick Weisbecker
LSG2M
Ecole des Mines de Nancy
Parc de saurupt
54042 Nancy
email: patrick.weisbecker...@mines.u-nancy.fr