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X-Ray Fluorescence Spectrometry With Gas Proportional Scintillation Counters

Published online by Cambridge University Press:  06 March 2019

C.A.N. Conde ,
J.M.F. dos Santos ,
Teresa H.V.T. Dias ,
A.J.A. de Campos  and
Benilde F.O. Costa
C.A.N. Conde
Affiliation:
Physics Department University of Coimbra P-3000 Coimbra Portugal
J.M.F. dos Santos
Affiliation:
Physics Department University of Coimbra P-3000 Coimbra Portugal
Teresa H.V.T. Dias
Affiliation:
Physics Department University of Coimbra P-3000 Coimbra Portugal
A.J.A. de Campos
Affiliation:
Physics Department University of Coimbra P-3000 Coimbra Portugal
Benilde F.O. Costa
Affiliation:
Physics Department University of Coimbra P-3000 Coimbra Portugal
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Abstract

An uniform field gas proportional scintillation counter is described for X-ray fluorescence analysis applications requiring large window areas and good energy resolution at rcom temperature. This counter uses continuously purified xenon as the filling gas and a 1 inch diameter window. A quartz window Hamamatsu R562 photomultiplier is used with its window in direct contact with the gas. Measured energy resolutions were in the 12 to 13% range for the 5.9keV X–ray line. X–ray fluorescence spectra for a few samples are presented with excitation by ImC 55Fe and 244cm sources. Measured physical excitation-detection efficiencies are compared with calculated values.

Type
VII. XRF Techniques, Instrumentation and Mathematical Models
Information
Advances in X-Ray Analysis , Volume 31: Thirty-sixth Annual Conference on Applications of X-ray Analysis , 1987 , pp. 445 - 448
Copyright
Copyright © International Centre for Diffraction Data 1987

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References

1. Conde, C.A.N. and F, J.M.. dos Santos, The recessed source geometry for source excited X-ray fluorescence analysis, Adv. in X-ray Anal. 29: 545 (1986),Google Scholar
2. Rhodes, J.R., Design and applications of X-ray emission analyzers using radioisotope X-ray or gamma ray sources, in: “ASTM Special Technical Publication,” No. 485, pp. 243–285. American Society for Testing and Materials, Philadelphia (1971).Google Scholar
3. dos Santos, J.M.F. and N, C.A.. Conde, Optimization of geometry for radioisotope excited X-ray fluorescence spectrometry, X-Ray Spectrom./jt>. 16 (1987) to be published..+16+(1987)+to+be+published.>Google Scholar
4. C.A.H., Conde, Requicha Ferreira, T. F. and de Campos, A. J. A., The gas proportional scintillation counter as a room temperature detector for energy-dispersive X-ray fluorescence analysis, Adv. in X-Ray Anal. 25: 39 (1982).Google Scholar
5. Conde, C.A.N., Ferreira, L. Requicha and Fatima, M. Ferreira, A., The secondary scintillation of xenon in a uniform field gas propcrtional scintillation counter, IEEE Trans. Nucl. Sci. NS-24, No.1: 221 (1977).Google Scholar