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Journal of Radioanalytical Chemistry

, Volume 28, Issue 1–2, pp 221–230 | Cite as

Untersuchungen an Geologischen Materialien Durch Messung der Natürlichen Gamma-aktivität

Aktivierungsanalyse und Aktivitätsmessung

Abstract

Investigations of natural activity of several geological materials by γ-spectrometry using a Ge(Li)-detector are described. The determination of thorium and uranium contents is possible up to minimum concentrations of about 10 ppm Th and 1 ppm U. The results of this method are compared with results of different methods of activation analysis. In the most cases the agreement is very well. If the decay-chain of238U is not in equilibration, it is possible to estimate the geological oldness of the sample in a range between about 20 000 and 200 000 years.

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Copyright information

© Akadémiai Kiadó 1975

Authors and Affiliations

  • G. Loos
    • 1
  1. 1.Zentralinstitut für KernforschungAkademie der Wissenschaften der DDRRossendorf bei Dresden(DDR)

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