The reference intensity ratio,  I / I   c  , for computer simulated powder patterns | Zendy

Hubbard C. R. | Zendy; Evans E. H. | Zendy; Smith D. K. | Zendy

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The reference intensity ratio, I / I c , for computer simulated powder patterns

Author(s) -

Hubbard C. R.,

Evans E. H.,

Smith D. K.

Publication year - 1976

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/s0021889876010807

Subject(s) - corundum , intensity (physics) , limiting , analytical chemistry (journal) , powder diffraction , materials science , extinction (optical mineralogy) , diffraction , mineralogy , chemistry , optics , crystallography , physics , chromatography , engineering , mechanical engineering

A scale factor γ, to convert from the relative to the absolute/relative intensity scale, is readily calculated during computer simulation of powder patterns. Previously used scale factors are related to γ. The Reference Intensity Ratio, I / I c ( c = corundum), is obtained from μ, ρ, and γ for the sample and for corundum. Comparing calculated and experimental I / I c values confirms that microabsorption and primary extinction can be serious experimental aberrations possibly limiting the accuracy to several wt.% in quantitative analysis by powder diffraction.

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