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Journal of Radioanalytical and Nuclear Chemistry

, Volume 209, Issue 2, pp 373–380 | Cite as

In-situ spectrometry of137Cs in the soil by an unfolding method

  • M. Fülöp
  • P. Ragan
  • Š. Krnáč
Article

Abstract

The approach is based on in-situ measurements performed with a portable high-resolution germanium γ-spectrometer and on calculations of the depth distribution by an unfolding method. To unfold the depht distribution of137Cs concentration in soil four detector responses and the iterative procedure SAND II were used. The detector responses consist of the responses to primary 662 keV photons and to photons scattered in soil with the rest energies of 620–655 keV. The detector is used with and without collimator. The method is sufficiently sensitive for measurements of137Cs concentration in soil 10 years after the Chernobyl accident. The results are compared to laboratory analyses of collected soil samples and with a standard method of in-situ spectrometry.

Keywords

Physical Chemistry Inorganic Chemistry Soil Sample Standard Method Germanium 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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    H. L. BECK, J. DECAMPO, C. GOGOLAK, In Situ Ge(Li) and NaI(Tl) Gamma-Ray Spectrometry, Health and Safety, TID-4500, 1972.Google Scholar
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    J. F. BRIESMEISTER, (Ed.), MCNP: A General Monte Carlo Code for Neutron and Photon Transport Version 3A, LA-7396-M-Rev, 1986.Google Scholar

Copyright information

© Akadémiai Kiadó 1996

Authors and Affiliations

  • M. Fülöp
    • 1
  • P. Ragan
    • 1
  • Š. Krnáč
    • 2
  1. 1.Institute of Preventive and Clinical MedicineBratislavaSlovak Republic
  2. 2.Slovak Technical UniversityBratislavaSlovak Republic

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