Detection of 236U and variation of uranium isotope composition in the soil samples affected by the JCO criticality accident

Sarata Kumar SAHOO; Shinzo KIMURA; Yoshito WATANABE; Kunio SHIRAISHI; Akimasa MASUDA

doi:10.2183/pjab.78.196

Detection of ²³⁶U and variation of uranium isotope composition in the soil samples affected by the JCO criticality accident

Sarata Kumar SAHOO, Shinzo KIMURA, Yoshito WATANABE, Kunio SHIRAISHI, Akimasa MASUDA

Author information

Keywords: Uranium, ²³⁴U/²³⁸U, ²³⁵U/²³⁸U, ²³⁶U/²³⁸U, TIMS, soil, JCO criticality accident

JOURNAL FREE ACCESS

2002 Volume 78 Issue 7 Pages 196-200

DOI https://doi.org/10.2183/pjab.78.196

Details

Abstract

Uranium affected by criticality accident which occurred at the JCO in Japan was chemically separated and its isotopic composition was measured using a thermal ionisation mass spectrometer. Chemical separation of uranium was carried out by anion exchange resin and UTEVA extraction chromatography. Radioactive dis-equilibrium of ²³⁴U/²³⁸U and enrichment of ²³⁵U/²³⁸U were noticed in some soil samples. Presence of ²³⁶U produced by the accident was detected in the samples examined.

Corresponding author

Register with J-STAGE for free!