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Generalized extinction in bipyramidal crystals

Generalized extinction in bipyramidal crystals The generalized extinction factors for a set of strong reflections as a function of wavelength are obtained by indirect measurements. The experiments are performed on a crystalline system that satisfies the geometrical requirements imposed by theoretical models developed for a finite perfect crystal. With increased perfection, represented by a reduction in the width of the mosaic distribution function from three to one thousandth of a degree, the experiments give results that approach the predictions from the theory. The present procedure utilizes measurements of the integrated diffracted power of a weak reflection for scaling the strong reflections, hence non‐measurable wavelength‐dependent factors are assumed to be eliminated. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Crystallographica Section A Foundations of Crystallography Wiley

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References (41)

Publisher
Wiley
Copyright
Copyright © 2001 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0108-7673
eISSN
1600-5724
DOI
10.1107/S0108767300018572
Publisher site
See Article on Publisher Site

Abstract

The generalized extinction factors for a set of strong reflections as a function of wavelength are obtained by indirect measurements. The experiments are performed on a crystalline system that satisfies the geometrical requirements imposed by theoretical models developed for a finite perfect crystal. With increased perfection, represented by a reduction in the width of the mosaic distribution function from three to one thousandth of a degree, the experiments give results that approach the predictions from the theory. The present procedure utilizes measurements of the integrated diffracted power of a weak reflection for scaling the strong reflections, hence non‐measurable wavelength‐dependent factors are assumed to be eliminated.

Journal

Acta Crystallographica Section A Foundations of CrystallographyWiley

Published: Mar 1, 2001

Keywords: ;

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