Radiation enhanced reactivity of UO2
2006 (English)In: Journal of Nuclear Materials, ISSN 0022-3115, E-ISSN 1873-4820, Vol. 354, no 1-3, 131-136 p.Article in journal (Refereed) Published
Pure UO2 is often used as a model compound when studying reactions of importance in a future deep repository for spent nuclear fuel. The reactivity of pure UO2 is not expected to be identical to the reactivity of the UO2-matrix of spent nuclear fuel for several reasons. One reason is that the spent fuel, due to the content of radionuclides, is continuously being self-irradiated. The aim of this study is to investigate how irradiation of solid UO2 surfaces affects their reactivity towards oxidants. The effect of irradiation (gamma or electrons) on the reaction between solid UO2 and MnO4- in aqueous solutions containing carbonate has been studied. It was found that irradiation with high doses (> 40 kGy) increased the reactivity of the UO2 to about 1.3 times the reactivity of unirradiated UO2.
Place, publisher, year, edition, pages
2006. Vol. 354, no 1-3, 131-136 p.
Carbonates, Electron irradiation, Manganese compounds, Mathematical models, Nuclear fuels, Radioisotopes, F0700, U0200, W0200
IdentifiersURN: urn:nbn:se:kth:diva-8387DOI: 10.1016/j.jnucmat.2006.03.011ISI: 000239109300011ScopusID: 2-s2.0-33745422542OAI: oai:DiVA.org:kth-8387DiVA: diva2:13694
QC 201009082008-05-082008-05-082012-05-30Bibliographically approved