[sdpd] Gfourier (Rietveld)

[Hamid Mutaalim <hamdane99...@yahoo.com>]

Dear All

I would like to ask if I have the atomic position of
heavy atoms and I would like to search for the others
by using GFourier program provided by Fullprof .

 The procedia: I have to use Rietveld and  Calculate
Fobs-Fcal.
 1-Then the peaks that I found some of them have
negative density I have to consider these peaks also
or only the peaks with positive density 

2-The peaks found have to be included on the Rietveld
refinement one by one or several in the same time

Thank you for your reply
Hamdane


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