Advertisement

Journal of Radioanalytical and Nuclear Chemistry

, Volume 255, Issue 2, pp 359–364 | Cite as

Estimation of fast neutron fluence released by the Tokai-mura criticality accident from 54Mn in soils collected from the JCO grounds

  • Y. Murata
  • T. Muroyama
  • T. Imanaka
  • M. Yamamoto
  • K. Komura
Article
  • 45 Downloads

Abstract

To estimate fast neutron fluence released by the JCO criticality accident in Tokai-mura, 54Mn, which is produced by the 54Fe(n,p)54Mn reaction, was determined in soil samples by ultra low background g-ray spectrometry after radiochemical separation. Activities of 54Mn, using 30-200 g soil samples were detected in soil samples from 13 points in all directions within a 20 m zone from the precipitation vessel we have used. The levels of 54Mn ranged from 0.015 to 2.12 mBq/g soil. By using these data and MCNP, the fast neutron fluences were estimated.

Keywords

Precipitation Physical Chemistry Inorganic Chemistry Soil Sample Fast Neutron 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Y. Murata, T. Muroyama, H. Kofuji, M. Yamamoto, K. Komura, J. Environ. Radioact., 50 (2000) 69.Google Scholar
  2. 2.
    Y. Murata, T. Muroyama, Y. Kawabata, M. Yamamoto, K. Komura, J. Radiat. Res., 42 (2001) 55.Google Scholar
  3. 3.
    Y. Murata, T. Muroyama, M. Yamamoto, K. Komura, J. Radioanal. Nucl. Chem., to be published.Google Scholar
  4. 4.
    K. Komura, Proc. Wakasa Symp. on Environmental Radiation, Oct. 20, 1997, Tsuruga, Japan, 1998, p. 56.Google Scholar
  5. 5.
    T. Imanaka, J. Radiat. Res., 42 (2001) 31.Google Scholar
  6. 6.
    T. Nakanishi, personal communication, 2000.Google Scholar
  7. 7.
    G. Erdtmann, Neutron Activation Tables, Weinheim, Verlag Chemie, 1976.Google Scholar

Copyright information

© Kluwer Academic Publishers/Akadémiai Kiadó 2003

Authors and Affiliations

  • Y. Murata
    • 1
  • T. Muroyama
    • 1
  • T. Imanaka
    • 2
  • M. Yamamoto
    • 3
  • K. Komura
    • 3
  1. 1.Low Level Radioactivity LaboratoryKanazawa UniversityTatsunokuchi-cho, Nomi-gun, IshikawaJapan
  2. 2.Research Reactor InstituteKyoto UniversityKumatori-cho, Sennan-gun, OsakaJapan
  3. 3.Low Level Radioactivity LaboratoryKanazawa UniversityTatsunokuchi, IshikawaJapan

Personalised recommendations