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Instrument Function in Powder Diffraction
Author(s) -
Honkimäki V.
Publication year - 1996
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889896005122
Subject(s) - collimator , optics , diffraction , divergence (linguistics) , reflection (computer programming) , aperture (computer memory) , absorption (acoustics) , materials science , powder diffraction , function (biology) , physics , nuclear magnetic resonance , philosophy , linguistics , evolutionary biology , computer science , acoustics , biology , programming language
The instrument function for energy‐dispersive powder diffraction and angular‐dispersive powder diffraction is presented. The contribution made by sample absorption is included in the instrument function. Both the equatorial and axial divergence functions are calculated in reflection geometry. The axial divergence function is calculated for Soller slits and aperture slits. The equatorial aberrations and the absorption contributions to the line profile are determined for an apparatus with collimator, antiscatter and receiving slits.