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Thermal Diffuse Scattering in Neutron Time-of-Flight Powder Patterns

Published online by Cambridge University Press:  21 February 2011

Michael J. Radler
Michael J. Radler*
Affiliation:
Department of Materials Science & Engineering, The Robert R. McCormick School of Engineering and Applied Science, Northwestern University, Evanston, IL 60208
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Abstract

Inelastic scattering from lattice phonons contributes a significant fraction of the observed Bragg intensity in time of flight neutron powder patterns of transition metal monoxides at elevated temperatures. Ignoring this thermal diffuse scattering (TDS) leads to errors in the site occupations of defects present in these materials. The intensity from one phonon TDS has been calculated as a function of time-of-flight and used to correct the measured intensities. The effect of this correction on the results of Rietveld profile refinement is discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 166: Symposium J – Neutron Scattering for Materials Science , 1989 , 67
Copyright
Copyright © Materials Research Society 1990

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References

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