Fission products and nuclear fuel behavior under severe accident conditions Part 3: Fission Products speciation in the VERDON-1 Sample

C. Le Gall (1) , E. Geiger (2, 1) , A. Gallais-During (1) , Yves Pontillon (2, 1) , J. Lamontagne (3, 1) , E. Hanus (1) , G. Ducros (1)

1 CEA-DES (ex-DEN) - CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire)
2 LAMIR - Laboratoire d'Analyse de la Migration des Radioéléments
3 LM2C - Laboratoire de Modélisation Multi-échelles des Combustibles

Qualitative and quantitative analyses on the VERDON-1 sample made it possible to obtain valuable information on fission product behaviour in the fuel during the test. A promising methodology based on the quantitative results of post-test characterisations has been implemented to assess the release fraction of non γ-emitter fission products. The order of magnitude of the estimated release fractions for each fission product was consistent with their class of volatility.

Domains: Physics [physics]; Nuclear Theory [nucl-th]; Physics [physics]; Nuclear Experiment [nucl-ex]

C. Le Gall, E. Geiger, A. Gallais-During, Yves Pontillon, J. Lamontagne, et al.. Fission products and nuclear fuel behavior under severe accident conditions Part 3: Fission Products speciation in the VERDON-1 Sample. Journal of Nuclear Materials, 2017, 495, pp.291-298. ⟨10.1016/j.jnucmat.2017.08.001⟩. ⟨cea-02380864⟩