Trouble with FULLPROF

Bruce A. Weir ( (no email) )
Thu, 03 Sep 1998 10:47:13 +0100

I am using Fullprof90 (running on NT) to do a pattern match on some
X-ray powder data. Initial refinement - setting up the starting hkl
values works OK but when I try to refine the background all the chi^2
values read ********* and it sets the background parameter being refined
to **********. It then sums my total reflections to zero and enquires if
I really have any data.
My dataset is quite large (approx 12000 readings), has anyone else had
this problem when using the software? The same error also occurs with
Fullprof98.

Any suggestions?

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Bruce A. Weir,Optoelectronics,Cavendish Laboratory,University Of Cambridge,Madingley Rd,Cambridge,CB3 0HEU.K.

Tel: +44 01223 337285Email: b.a.weir@cyberdude.com****************************************************************************

"Science is the expanding sphere of ignorance"

--Richard Feynmann