Community Research and Development Information Service - CORDIS

FP7

Evidence of two gas release kinetics during the oxidation of an irradiated PWR UO(2) fuel

Funded under: FP7-EURATOM

Abstract

The 'ADAGIO' (French acronym for Discriminating Analysis of Accumulation of Inter-granular and Occluded Gas) experiments are dedicated to the determination of the gas inventory located at inter-granular position thanks to a partial oxidation of an irradiated UO(2) fuel. During these experiments the {85}Kr gas release is measured as a function of time. The comparison of {85}Kr release kinetic with the fuel oxidation kinetic brought into prominence two different gas release kinetics: the first one is proportional to the oxidation kinetic, the second one has a sigmoid shape and could be linked to the gas release of the so called 'High Burn-up Structure'.

Additional information

Authors: POULESQUEN A, Commissariat à l'Energie Atomique, Gif sur Yvette (FR);MENEGON P, Commissariat à l'Energie Atomique, CEA/Valrhô - Marcoule, Bagnols-sur-Cèze (FR);DESGRANGES L, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);PONTILLON Y, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR)
Bibliographic Reference: An article published in: Journal of Nuclear Materials, Volume 378, Issue 1, (2008), 8 pp.
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://dx.doi.org/10.1016/j.jnucmat.2008.04.008
Record Number: 200910153 / Last updated on: 2009-01-23
Category: PUBLICATION
Original language: en
Available languages: en
Follow us on: RSS Facebook Twitter YouTube Managed by the EU Publications Office Top