Determination of uranium concentration and burn-up of irradiated reactor fuel in contaminated areas in Belarus using uranium isotopic ratios in soil samples

Mironov, V. P.; Becker, J. S.; Ananich, P. I.; Boulyga, S. F.; Kudrjashov, V. P.; Matusevich, J. L.; Zhuravkov, V. V.

doi:10.1524/ract.2005.93.12.781

Journal Article

Determination of uranium concentration and burn-up of irradiated reactor fuel in contaminated areas in Belarus using uranium isotopic ratios in soil samples

Mironov, V. P. ; Matusevich, J. L. ; Kudrjashov, V. P. ; Ananich, P. I. ; Zhuravkov, V. V. ; Boulyga, S. F. ; Becker, J. S.FZJ*

2005
Oldenbourg MÃ¼nchen

Radiochimica acta 93, 781 - 784 (2005) [10.1524/ract.2005.93.12.781]

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Please use a persistent id in citations: http://hdl.handle.net/2128/2812 doi:10.1524/ract.2005.93.12.781

Abstract: An analytical method is described for the estimation of uranium concentrations, of U-235/U-238 and U-236/U-238 isotope ratios and burn-up of irradiated reactor uranium in contaminated soil samples by inductively coupled plasma mass spectrometry. Experimental results obtained at 12 sampling sites situated on northern and western radioactive fallout tails 4 to 53 km distant from Chernobyl nuclear power plant (NPP) are presented. Concentrations of irradiated uranium in the upper 0-10cm soil layers at the investigated sampling sites varied from 2.1 x 10(-9) g/g to 2.0 x 10(-6) /g depending mainly on the distance from Chernobyl NPP. A slight variation of the degree of burn-up of spent reactor uranium was revealed by analyzing U-235/U-238 U and U-236/U-211 isotope ratios and the average value amounted to 9.4 +/- 0.3 MWd/(kg, U).

Keyword(s): J ; reactor fuel (auto) ; burn-up (auto) ; environmental contamination (auto) ; uranium isotopic analysis (auto) ; inductively coupled plasma mass spectrometry (auto)