negative peak

2013-11-21 Thread gregor
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

Re: negative peak

2013-11-21 Thread Reinhard Kleeberg
refinement, as they must be fitted by a modulated background model... Reinhard Am 21/11/2013 12:32, schrieb gre...@unisi.it: 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