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DIFFUSE : a procedure to measure diffuse intensity on a CAD‐4 diffractometer with CAD ‐4‐ EXPRESS software
Author(s) -
Neder R. B.
Publication year - 1994
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/s0021889894004589
Subject(s) - cad , measure (data warehouse) , software , eulerian path , lattice (music) , computer science , grid , geometry , reciprocal , intensity (physics) , computer aided design , engineering drawing , computer graphics (images) , mathematics , optics , physics , mathematical analysis , programming language , engineering , data mining , lagrangian , acoustics , linguistics , philosophy , operating system
An inaccuracy in the GRIDSCAN procedure, included in version 5.1 of CAD ‐4‐ EXPRESS , is pointed out. The program presented allows interactive and batch‐type scans on a true grid in reciprocal‐lattice units. Two measurement modes are provided: (i) calculation of all points at general Eulerian angles with fixed ψ for all reflections; (ii) two‐circle geometry by definition of a zone axis.

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