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


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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    J. A. S. ADAMS, J. K. OSMEND, J. J. W. ROGERS, The Geochemistry of Th and U in Physics and Chemistry of the Earth, Pergamon, Oxford, 1959.Google Scholar
  2. 2.
    R. D. CHERRY, Natural Radiation Environment, Chapter 25, University of Chicago Press, 1964.Google Scholar
  3. 3.
    T. M. FLORENCE, AAEC/TM 552, 1970.Google Scholar
  4. 4.
    W. LÖTSCH, Kernenergie, 7 (1964) 570.Google Scholar
  5. 5.
    M. W. ROWE, M. A. VAN DILLA, E. C. ANDERSON, Geochim. Cosmochim. Acta, 27 (1963) 983.CrossRefGoogle Scholar
  6. 6.
    L. RYBACH, J. RAUMER, J. A. S. ADAMS, Rev. Pure Appl. Geophys., 63 (1966) 153.CrossRefGoogle Scholar
  7. 7.
    G. LOOS, Dissertation, TU Dresden, 1973.Google Scholar
  8. 8.
    A. J. MOSES, Nuclear Techniques in Analytical Chemistry, Pergamon, Oxford, 1964.Google Scholar

Copyright information

© Akadémiai Kiadó 1975

Authors and Affiliations

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

Personalised recommendations