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A New Technique for Radioisotope-Excited X-Ray Fluorescence*

Published online by Cambridge University Press:  06 March 2019

J.J. LaBrecque  and
W.C. Parker
J.J. LaBrecque
Affiliation:
Institute Venezolano de Investigaciones Científicas, Apartado 1827, Caracas 1010-A, Venezuela
W.C. Parker
Affiliation:
Institute Venezolano de Investigaciones Científicas, Apartado 1827, Caracas 1010-A, Venezuela
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Summary

In this work we plan to describe a new simple technique for exciting characteristic X-rays for X-ray fluorescence. This technique was originally designed for use with β-emitting radioisotopes (1) but now has been extended to other types of isotopes.The technique involves mixing directly with the sample (about 20mg) a small amount of a radionuclide (about 100 μCi). An equal atomic mixture of the following elements was prepared: Ti, Mn, Zn, BrfAg, Sn,and Ba. This mixture was investigated with the following isotopes: Ni-63, S-35, Pm-147, Na-22, Co-137, I-125, Co57, Cd-109, Zn-65, Fe-55 and Am-241. A composite table of the corrected integrated Kα—lines of the elements in the mixture and Graphs showing the ratio of the Ka line intensity of the element of interest divided by the Kα line intensity of Ti will also be presented.

Type
VI. New XRF Instrumentation and Techniques
Information
Advances in X-Ray Analysis , Volume 26: Thirty-First Annual Conference on Applications of X-ray Analysis, August 1-6, 1982 , 1982 , pp. 337 - 340
Copyright
Copyright © International Centre for Diffraction Data 1982

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Footnotes

†

Atomic Energy of Canada Ltd., P.P.Box 6300, Ottawa, K2A 3W3

*

This work was funded in part by CONICIT (Venezuela;SI-1149) which forms part of an international project with the NSF (USA).

References

1) LaBrecque, J.J. and Parker, W.C., Radiochem. Radioanal. Letters, 49 (1981) 261–2.Google Scholar
2) LaBrecque, J.J., Proc. of the III Intern. Conf. on Computer in Chemical Research, Education and Technology (1976) P.61-84.Google Scholar