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Determination of crystal orientation from micrographs using a MATLAB program
Author(s) -
Kou Yi,
Gibson Ursula
Publication year - 2005
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/s0021889805007909
Subject(s) - orientation (vector space) , micrograph , rotation (mathematics) , crystal (programming language) , tetragonal crystal system , materials science , optics , crystallography , physics , geometry , diffraction , chemistry , crystal structure , mathematics , computer science , programming language
Crys.m is a MATLAB routine that combines a micrograph of a crystal with a scaleable, rotatable three‐dimensional cage structure to determine the orientation of the crystal axes. The example presented here uses the morphology of tetragonal lysozyme. Rotation of the cage until it aligns with the crystal in the image yields the orientation of the c axis of the crystal relative to the image normal. This analysis can be used for quantitative determination of crystal orientation effects induced by electric, magnetic and/or gravitational fields.