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Isolation and Microscopic Characterization of Nuclear Fuel Particles from Two Contaminated Soils of Chernobyl

Published online by Cambridge University Press:  21 March 2011

Ahamdach Noureddine  and
Stammose Denise
Ahamdach Noureddine
Affiliation:
HEMISPHERES, 18/20 av. Edouard Herriot, Parc technologique, Bât. Carnot, 92350 Le Plessis-Robinson, France
Stammose Denise
Affiliation:
Institut de Protection et de Sûreté Nucléaire, IPSN/DPRE/SERGD/LESTS BP6, 92265 Fontenay aux Roses Cedex, France
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Abstract

Nuclear fuel particles were separated, from two different Chernobyl contaminated soils, by sedimentation in bromoform. Their physico-chemical characteristics were studied by scanning electron microscopy. The two soils show the same types of fuel particles: one part of these particles contains U and O and the other part contains U, Zr and O. The structure and the surface morphology of the studied particles are variable and are characteristic of the conditions of their formation. The source term is thus heterogeneous. This heterogeneity has direct consequences on the dissolution of the fuel particles and should be taken into account in mathematical models.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 663: Symposium – Scientific Basis for Nuclear Waste management XXIV , 2000 , 1161
Copyright
Copyright © Materials Research Society 2001

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References

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