Simultaneous determination of uranium and thorium in ores by instrumental epithermal neutron activation analysis

Rapid scanning of numerous rock samples when prospecting for uranium and thorium ores can be facilitated by using the shorter-lived nuclides. The samples are activated during short epithermal neutron irradiations and the 20-min activities of 239U and 233Th are observed instrumentally with a small Ge...

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Veröffentlicht in:Analytica chimica acta 1979, Vol.104 (1), p.121-127
Hauptverfasser: Gladney, Ernest S., Owens, James W., Starner, John W.
Format: Artikel
Sprache:eng
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Zusammenfassung:Rapid scanning of numerous rock samples when prospecting for uranium and thorium ores can be facilitated by using the shorter-lived nuclides. The samples are activated during short epithermal neutron irradiations and the 20-min activities of 239U and 233Th are observed instrumentally with a small Ge(Li) detector. The detection limits for uranium and thorium are less than 1 ppm and 20 ppm, respectively.
ISSN:0003-2670
1873-4324
DOI:10.1016/S0003-2670(01)83821-6