> Not sure I understand? If you have a 2D image showing powder rings > then you should have some very good ideas about the level of > granularity or texture in the sample. Just look for the variation in > intensity versus azimuth? Did you mean a one dimensional image plate? > > One way to reduce "graininess" if you have a mixture of grains and > fine powder: take the median when integrating around the rings instead > of the mean. If you only have grains and no continuous rings then > better to do the single crystal experiment... > Dear Bhuv,
I don't know your experimental setup. When working with single grains, you might consider to apply the Gandolfi method, i.e. turning the grain simultaneously around two axes instead of just one (as in the Debye-Scherrer setting) during exposure. If your grain is not a single crystal, this should give you a nearly perfect powder I vs 2th pattern, especially if you integrate around the rings as suggested by Jon, and you can forget about inadequate intensity corrections. BTW, graininess may also give you a peak displacement. Best Miguel -- Miguel Gregorkiewitz Dip Scienze della Terra, Universit� via Laterino 8, I-53100 Siena, Europe fon +39'0577'233810 fax 233938 email [EMAIL PROTECTED]
