[no subject]

2004-03-26 Thread ling yang
Dear all, I have some questions concerning the refinement of the gppd data and would appreciate your advice: 1) The patterns show some kind of texture(up and down on the error curve), but the sample is powder(although maybe the granules are large) and should be isotropic. All banks show

RE:

2004-03-26 Thread Peter Zavalij
This is quite comprehensive question(s) and even not so comprehensive answer could not be placed in one e-mail message. However, all these issues and more are covered in book "Fundamentals of Powder Diffraction and Structural Characterization of Materials" by V.K.Pecharsky P.Y.Zavalij.