Characterization of uranium and thorium containing minerals by nuclear microscopy

Kertész, Zsófia and Furu, Enikő Emese and Angyal, Anikó and Freiler, Ágnes and Török, Kálmán and Horváth, Ákos (2015) Characterization of uranium and thorium containing minerals by nuclear microscopy. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 306. pp. 283-288. ISSN 0236-5731 (print), 1588-2780 (online)

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Abstract

Radioactive minerals of the gneiss of Sopron Mountains were analysed by micro-PIXE method at the Debrecen scanning nuclear microprobe. Zircon and mon- azite minerals were identified with detectable amount of U and Th. Qualitative elemental maps and quantitative con- centration data were obtained on 20 minerals. U and Th concentrations were between few 100 ppm and 10 wt%. The size of the minerals varied between few micrometers and 100 microns, the distribution of U and Th within the grains was inhomogeneous. These radioactive minerals occurred in veins enriched with Fe.

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