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Communication Dans Un Congrès Année : 2016

Thin film samples: a new methodology for investigating the mechanisms of fission gas releases from nuclear fuel during a LOCA

Résumé

Accurately predicting fission gas releases (FGR) from high burn-up fuels during off- normal conditions, such as a loss-of-coolant accident (LOCA), is an important, major challenge. A significant step forward would be to identify and assess the basic mechanisms causing this FGR. A helpful way of better understanding these basic mechanisms is to separate these effects and to perform irradiations on materials simulating the nuclear fuel. Mesoporous or dense CeO2 and UO2 samples (with thin film geometry) were selected for these studies as materials representative of irradiated fuels. A basic mechanism to obtain a better understanding of FGR is described and a new methodology using thin film samples is developed to test the validity of this mechanism.
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Dates et versions

hal-01481517 , version 1 (02-03-2017)

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Citer

Guillaume Brindelle, Gianguido Baldinozzi, Hélène Capdevila, Lionel Desgranges, Yves Pontillon. Thin film samples: a new methodology for investigating the mechanisms of fission gas releases from nuclear fuel during a LOCA. 2016 MRS Spring Meeting, Materials Research Society, Mar 2016, Phoenix, United States. pp.2439 - 2445, ⟨10.1557/adv.2016.501⟩. ⟨hal-01481517⟩
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