Am Mi, 2004-10-06 um 12.43 schrieb Angel L. Ortiz: > Does anyone know why the instrumental profiles (instrumental > resolution) are generally Gaussian for low diffraction angles, whereas > turns to Lorentzian for high diffraction angles?. > Both Gaussian as well as Lorentzian are rough approximations, but still in use until now. You may find examples for real instrumental profiles (only the geometric part, _not_ including the X-ray spectrum) at www.bgmn.de/ger.html
Sincerely yours J. Bergmann