Conditions Extrêmes et Matériaux : Haute Température et Irradiation

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G.Guimbretière, A.Canizarès, L.Desgranges, R.Caraballo, F.Duval, C.Jegou, M.Magnin, P.Simon
In situ Raman estimation of irradiation-induced heating of UO2
J. Nucl. Mater. 478 172-175 (2016) [view,doi,HAL]

We present an in situ Raman estimation of the temperature increase of UO2 pellets induced by cyclotron He2+ ionic irradiation in different environments (Ar gas or water): For instance, in the Ar gas environment,the sample is heated to a temperature 150-200°C(i.e., below the annealing temperature of UO2 defects). For water, the sample is heated from 30-80°C, just below the range of the studtite/metastudtite and the schoepite/metaschoepite transitions.