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The Demountable Tube in Light Element Fluorescence Analysis

Published online by Cambridge University Press:  06 March 2019

M. A. Short  and
M. J. H. Ruscoe
M. A. Short
Affiliation:
Associated Electrical Industries, Limited Urmston, Manchester, England
M. J. H. Ruscoe
Affiliation:
Associated Electrical Industries, Limited Urmston, Manchester, England
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Abstract

In view of the importance of obtaining optimum conditions for the X-ray fluorescence analysis of light elements, an investigation has been made of the effects of varying the X-ray tube target, the target take-off angle, the tube voltage, and the tube window thickness. The effects of these parameters have been observed by measurement of the intensity of fluorescence of two light elements using the Ray max 60 demountable tube and vacuum path spectrometer. The results obtained are compared with those given by theoretical calculations based on consideration of the relevant parameters; good qualitative agreement has been obtained. It is shown that a high primary X-ray intensity is obtained with a high target take-off angle, a low angle of incidence of the electron beam on the target, and an optimum setting of tube voltage. It is further shown that the most suitable target to use for the fluorescence analysis of light elements is markedly dependent on the thickness of the X-ray tube window.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 10: Fifteenth Annual Conference on Applications of X-ray Analysis, August 10-12, 1966 , 1966 , pp. 520 - 533
Copyright
Copyright © International Centre for Diffraction Data 1966

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