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Méthode d'essais et erreurs pour l'indexation automatique des diagrammes de poudre
Author(s) -
Louër D.,
Louër M.
Publication year - 1972
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/s0021889872009483
Subject(s) - fortran , orthorhombic crystal system , physics , mathematics , humanities , computer science , philosophy , programming language , optics , diffraction
A trial‐and‐error method is described for facilitating the indexing of X‐ray powder patterns with the help of a computer. It is based on the variation of parameters by dichotomy, i.e. successive division of available phase space. The observational errors are rigorously treated. The program, written in Fortran IV, presupposes orthorhombic or higher symmetry. The principles used are illustrated with several X‐ray powder patterns.