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Applicability of Pixe and XRF to Fast Drill Core Analysis in Air

Published online by Cambridge University Press:  06 March 2019

Lars-Eric Carlsson  and
K. Roland Akselsson
Lars-Eric Carlsson
Affiliation:
Department of Nuclear Physics, Lund Institute of Technology, Sölvegatan 14, S-223 62 LUND, Sweden
K. Roland Akselsson
Affiliation:
Department of Nuclear Physics, Lund Institute of Technology, Sölvegatan 14, S-223 62 LUND, Sweden
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Abstract

The properties of particle-induced X-ray emission, PIXE, and secondary target mode X-ray fluorescence, XRF, applied to the analysis of unprepared drill cores in open air have been evaluated. Typical detection limits for elements heavier than Mg have been determined for a PIXE-system with an external 2.55 MeV proton beam and for an XRF-system with Ti, Mo and Tb secondary targets. These two systems were found to have similar detection limits for most elements in a typical geological sample. The heterogeneous composition of drill cores prevents the performance of accurate matrix corrections, though calculations using fundamental parameters show that in the PIXE analysis of elements heavier than Ca, these corrections are much less sensitive to variations in the matrix composition than in the XRF analysis.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 24: Twenty-Ninth Annual Conference on Applications of X-ray Analysis, August 4-8, 1980 , 1980 , pp. 313 - 321
Copyright
Copyright © International Centre for Diffraction Data 1980

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References

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