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[sdpd] Fullprof2k Problem
Dear colleagues:
I'm use FullProf2k to refine the structure of SrLaBi3Ti4O15. When
I use Whole Pattern Decomposition (profile matching) to withdraw the
paramtere of profile, the parameter "Shape1" is larger than one when
I use the model of Pseudo-Voigt (Npr=5), although the R value is
lower than 10%. Then I use these parameters to do Rietveld
refinement, the R value is very large. So could you please tell me
what mean that the "Shape1" is larger than one? And how to overcome
this problem?
ps: I dont know how to use Pearson VII function (Npr=6), the program
alway said that "Pearson VII M-value unacceptable!"
Thank you!
Sincerely
X.Q. Liu
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