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Annual radiation dose determination in the luminescence dating of Ossendrecht sand: specific problems and procedures

  • Session 2: Nuclear Analytical Methods
  • Published:
Czechoslovak Journal of Physics Aims and scope

Abstract

Contrary to what was formerly experienced in the case of loess sediment, the luminescence dating of a coversand deposit at Ossendrecht (the south-western Netherlands) revealed two specific problems in the determination of the annual radiation dose: 1) the low concentration of U, Th and K present in the sample, and 2) sample inhomogeneity. In addition to NaI(Tl) γ-ray field measurements, the first problem was tackled by measuring a large volume of sample (1.5 kg sample mass) in Marinelli geometry with a low-background extended energy range HPGe γ-ray spectrometer in the laboratory. The sample inhomogeneity effect was eliminated by crushing (via ball-milling down to < 50 μm particle size) and homogenising about 200 g sample, from which then gram-size aliquots were taken for NAA, ZnS α-counting and GM β-counting. Comparison of the finally obtained results turned out to be satisfactory.

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Authors and Affiliations

  1. Lab. Anal. Chem., Inst. Nucl. Sci., Ghent Univ., Proeftuinstraat 86, B-9000, Gent, Belgium

    S. M. Hossain, F. De Corte & D. Vandenberghe

  2. Geological Institute, Ghent Univ., Krijgslaan 281, B-9000, Gent, Belgium

    P. Van den Haute

Authors
  1. S. M. Hossain
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  2. F. De Corte
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  3. D. Vandenberghe
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  4. P. Van den Haute
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Sponsored by the Fund for Scientific Research-Flanders

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Hossain, S.M., De Corte, F., Vandenberghe, D. et al. Annual radiation dose determination in the luminescence dating of Ossendrecht sand: specific problems and procedures. Czech J Phys 53 (Suppl 1), A257–A263 (2003). https://doi.org/10.1007/s10582-003-0033-8

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  • DOI: https://doi.org/10.1007/s10582-003-0033-8

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