Daniel Toebbens wrote :
>But do you even know that the FWHM behave the same? I remember a lecture
>at a DGK meeting a while ago where an examination of various diffraction
>patterns showed that they don't. Therefore one should use different
>relation functions for alp1 and alp2 (I didn't do this up to now, since my
>laboratory data were not THAT good).
In the NAC case, the FWHMs are not THAT different.
Fullprof allows the independent refinement. Fitting
with same U, V, W or with different ones does not
improve really the Rp and Rwp values.
=> U,V,W for Lambda(1) :
0.00437 0.00027
-0.00173 0.00030
0.00273 0.00008
=> U,V,W for Lambda(2) :
0.00411 0.00044
-0.00027 0.00048
0.00243 0.00012
Best wishes,
Armel Le Bail - Universit� du Maine, Laboratoire des Fluorures,
CNRS ESA 6010, Av. O. Messiaen, 72085 Le Mans Cedex 9, France
http://www.cristal.org/