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Skin Thickness Effects on In Vivo LXRF

Published online by Cambridge University Press:  06 March 2019

Ivor L. Preiss  and
William Washington II
Ivor L. Preiss
Affiliation:
Department of Chemistry Department of Nuclear Engineering and Engineering Physics Rensselaer Polytechnic Institute Tioy, New York 12180
William Washington II
Affiliation:
Department of Chemistry Department of Nuclear Engineering and Engineering Physics Rensselaer Polytechnic Institute Tioy, New York 12180
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Abstract

The analysis of lead concentration in bone utilizing LXRF can be adversely effected by overlymg tissue. A quantitative measure of the attenuation of the 10.5 keV Pb L a x-ray signal by skin and skin equivalent plastic has been conducted. Concentration ranges in plaster of Paris and doped goat bone from 7 to 90 ppm with attenuators of Lucite® and pig skin were examined. It is concluded that no quantitative or semi quantitative analysis can be achieved if overlying tissue thickness exceeds 3 mm for Pb concentrations of less than 30 ppm Pb in bone.

Type
VIII. In Vivo Applications of XRS
Information
Advances in X-Ray Analysis , Volume 38: Forty-third Annual Conference on Applications of X-ray Analysis , 1994 , pp. 607 - 613
Copyright
Copyright © International Centre for Diffraction Data 1994

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