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Experimental separation of the coherent component of X‐ray scattering prior to RDF analysis of non‐crystalline polymers

Experimental separation of the coherent component of X‐ray scattering prior to RDF analysis of... An experimental method is described which enables the inelastically scattered X‐ray component to be removed from diffractometer data prior to radial density function analysis. At each scattering angle an energy spectrum is generated from a Si(Li) detector combined with a multi‐channel analyser from which the coherently scattered component is separated. The data obtained from organic polymers has an improved signal/noise ratio at high values of scattering angle, and a commensurate enhancement of resolution of the RDF at low r is demonstrated for the case of PMMA (ICI `Perspex'). The method obviates the need for the complicated correction for multiple scattering. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Applied Crystallography Wiley

Experimental separation of the coherent component of X‐ray scattering prior to RDF analysis of non‐crystalline polymers

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References (1)

Publisher
Wiley
Copyright
Copyright © 1980 Wiley Subscription Services, Inc., A Wiley Company
ISSN
1600-5767
eISSN
1600-5767
DOI
10.1107/S0021889880011740
Publisher site
See Article on Publisher Site

Abstract

An experimental method is described which enables the inelastically scattered X‐ray component to be removed from diffractometer data prior to radial density function analysis. At each scattering angle an energy spectrum is generated from a Si(Li) detector combined with a multi‐channel analyser from which the coherently scattered component is separated. The data obtained from organic polymers has an improved signal/noise ratio at high values of scattering angle, and a commensurate enhancement of resolution of the RDF at low r is demonstrated for the case of PMMA (ICI `Perspex'). The method obviates the need for the complicated correction for multiple scattering.

Journal

Journal of Applied CrystallographyWiley

Published: Apr 1, 1980

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