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The Use of Mass Absorption in Quantitative X-Ray Diffraction Analysis

Published online by Cambridge University Press:  06 March 2019

Briant L. Davis  and
L. Ronald Johnson
Briant L. Davis
Affiliation:
Cloud Physics Laboratory, Institute of Atmospheric Sciences, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701-3995
L. Ronald Johnson
Affiliation:
Cloud Physics Laboratory, Institute of Atmospheric Sciences, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701-3995
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Extract

The mass absorption coefficient is perhaps the most under-utilized parameter in x-ray diffraction analysis. Mass absorption measurements are often avoided in quantitative analysis by resorting to calibration curves of internal standards (e.g., Kung and Alexander, 1974, Sec. 7-2.1). However, Leroux et al. (1953) and Frevel and Roth (1982) directly utilized the mass absorption coefficient in multicomponent analysis, and suggested a "substrate diffraction" procedure for directly measuring the sample mass absorption coefficient. The reference intensity procedure of quantitative multicomponent analysis originally formulated by Frank Chung (1974) requires no explicit use of the mass absorption coefficient because all reference intensity ratios are determined relative to an "external" standard, generally corundum (Al2O3).

Type
VI. Quantitative Phase Analysis by XRD
Information
Advances in X-Ray Analysis , Volume 30: Thirty-Fifth Annual Conference on Applications of X-ray Analysis, August 4-8, 1986 , 1986 , pp. 333 - 342
Copyright
Copyright © International Centre for Diffraction Data 1986

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References

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