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The approximation of symmetric X‐ray peaks by Pearson type VII distributions
Author(s) -
Hall M. M.,
Veeraraghavan V. G.,
Rubin H.,
Winchell P. G.
Publication year - 1977
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/s0021889877012849
Subject(s) - cauchy distribution , type (biology) , distribution (mathematics) , bar (unit) , gaussian , diffraction , physics , mathematics , mathematical analysis , optics , quantum mechanics , geology , paleontology , meteorology
Some symmetric X‐ray diffraction peaks can be approximated in shape by Pearson type VII distributions:This distribution is Cauchy for m = 1, modified Lorentzian for m = 2, and Gaussian for m = ∞. Some properties of the distribution and some illustrative applications are presented.
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