with some materials, I observed powder diffraction patterns (Bragg-Brentano, X'pert) which show a broad negative peak around 5-6º(2th), instead of the smoothly descending intensity coming from the primary beam.
Did some of you observe the same phenomenon, and has this been dealt with anywhere? best regards Miguel -- Miguel Gregorkiewitz Dip Scienze della Terra, Università via Laterina 8, I-53100 Siena, Europe fon +39'0577'233810 fax 233938 email gre...@unisi.it
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