Irradiation effects in hydrated zirconium molybdate

Hydrated zirconium molybdate is a precipitate formed during the process of spent nuclear fuel dissolution. In order to study the radiation stability of this material, we performed gamma and electron irradiation in a dose range of 10–100kGy. XRD patterns showed that the crystalline structure is not a...

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Bibliographic Details
Published in:Journal of nuclear materials 2012-07, Vol.426 (1-3), p.38-44
Main Authors: Fourdrin, C., Esnouf, S., Dauvois, V., Renault, J.-P., Venault, L., Tabarant, M., Durand, D., Chenière, A., Lamouroux-Lucas, C., Cochin, F.
Format: Article
Language:English
Subjects:
Applied sciences
Chemical Sciences
Condensed Matter
Controled nuclear fusion plants
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fission nuclear power plants
Fuels
Inorganic chemistry
Installations for energy generation and conversion: thermal and electrical energy
Materials Science
Nuclear fuels
Physics
Preparation and processing of nuclear fuels
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Summary:Hydrated zirconium molybdate is a precipitate formed during the process of spent nuclear fuel dissolution. In order to study the radiation stability of this material, we performed gamma and electron irradiation in a dose range of 10–100kGy. XRD patterns showed that the crystalline structure is not affected by irradiation. However, the yellow original sample exhibits a blue–grey color after exposure. The resulting samples were analyzed by means of EPR and diffuse reflectance spectroscopy. Two sites for trapped electrons were evidenced leading to a d1 configuration responsible for the observed coloration. Moreover, a third defect corresponding to a hole trapped on oxygen was observed after electron irradiation at low temperature.
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2012.02.028