tails toward high diffraction angles may be due to stacking faults, a typical example is the 020/110 reflection of kaolinite. For refinement try fiddling with the stec ptec parameters in GSAS,
best miguel On 23 Jul 2004 at 11:46, Alan Hewat wrote: > Posted for JM. Le-Meins whose email was rejected by our server because > it now checks more carefully the origin of messages. Sorry JM - I hope > some-one can answer your query. (I guess you mean the peak profile has > a tail, maybe due to scattering from very thin crystallites ?) Alan. > > Perhaps this is the problem because I use the SMTP server of > Rennes and the POP one of Mulhouse... > > Subjet: Right asymmetry > > Dear all, > > Following an experiment with synchrotron radiation, we noticed a > compound which presents several pics with a rather strong "right > asymmetry". We think to problems of stacking faults. We would like > to find some more informations about such a profil. > > In particular, we are looking for a program which could be able to > refine these profils correctly and we need complementary > literature that what we found on the ccp14 for example. For the > program we though to MarqX ? > > Thanks a lot in advance for all your informations and help > > Best > > JM > > > > Alan Hewat, ILL Grenoble, FRANCE <[EMAIL PROTECTED]> fax (33) > 4.76.20.76.48(33) 4.76.20.72.13 (.26 Mme Guillermet) > http://www.ill.fr/dif/AlanHewat.htm > ___________________________________________________________ -- Miguel Gregorkiewitz Dip Scienze della Terra, Universit� via Laterino 8, I-53100 Siena, Europe fon +39'0577'233810 fax 233938 email [EMAIL PROTECTED]
