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Some Applications of Energy Dispersive X-Ray Fluorescence Analysis in Minerals Exploration, Mining and Process Control

Published online by Cambridge University Press:  06 March 2019

C.G. Clayton  and
T.W. Packer
C.G. Clayton
Affiliation:
Applied Nuclear Geophysics Group, Nuclear Physics Division, AERE-Harwell, U.K.
T.W. Packer
Affiliation:
Applied Nuclear Geophysics Group, Nuclear Physics Division, AERE-Harwell, U.K.
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Extract

Energy dispersive X-ray fluorescence (EDXRF) analysis is finding increasing application in field assay of soils and stream sediments for geochemical prospecting; in borehole logging and core analysis for formation evaluation in mine control, and in on stream analysis for process control.

The analytical capability of the method is determined by the choice of source, the energy of the exciting radiation and the energy resolution of the detector. The nature of the samples, their atomic number and concentration are also important. However, the most dominant constraints on limits of detection are often imposed by the environment at the region of measurement: by the borehole condition, the nature of the rock face or the form of the particulates and stability of the fluid in a process stream.

Type
XRF Applications in the Minerals Industry
Information
Advances in X-Ray Analysis , Volume 23: Twenty-Eighth Annual Conference on Applications of X-ray Analysis, July 30 - August 3, 1979 , 1979 , pp. 1 - 13
Copyright
Copyright © International Centre for Diffraction Data 1979

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References

1. Clayton, C.G., Packer, T.W. and Fisher, J.C., Primary energy selection in non dispersive X-ray fluorescence spectrometry for alloy analysis and coating thickness measurement. Nuclear techniques in the basic metal industries, I.A.E.A., Vienna (1973).Google Scholar
2. Clayton, C.G. and Packer, T.W., Analysis of stream sediment and soil samples using a high resolution energy dispersive X-ray fluorescence spectrometer. Nuclear techniques and mineral resources, I.A.E.A., Vienna (1977).Google Scholar
3. Boynton, G.R., Canister cryogenic system for cooling germanium semi-conductor detectors in borehole and marine probes. Nucl. Instrum. Methods (23: 599 (1975)).Google Scholar
4. Watt, J.S., Nuclear techniques for on-line measurement in the control of mineral processing. Nuclear techniques and mineral resources, I.A.E.A., Vienna (1977).Google Scholar