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A texture goniometer with variable radius and collimation for analysis of textures in rocks
Author(s) -
Frost M. T.,
Siddans A. W. B.
Publication year - 1979
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/s0021889879013261
Subject(s) - goniometer , collimated light , radius , texture (cosmology) , optics , diffraction , resolution (logic) , materials science , variable (mathematics) , physics , mathematics , computer science , image (mathematics) , artificial intelligence , mathematical analysis , laser , computer security
A texture goniometer has been built specifically for geologic applications. Features include (1) a large and variable radius, (2) a variable collimation system that is simple to use and which permits excellent resolution, (3) a wide main circle that allows large specimens to be analysed, (4) partial vacuum paths for the incident and diffracted beams, (5) a θ :2 θ drive that allows 2 θ scans. The performance of the goniometer is assessed by determining resolution and count rate for various collimations and radii.