Radioactive waste packages Grain growth Defects Gamma rays XRD Sensitivity analysis Sodium Fast Reactors Nuclear Modélisation Fast reactor Sintering Metamodel Computer experiment ISM abundances Uncertainty Line identification Irradiation Diffusion Monte Carlo simulation Microstructure Particle shape Radioactivity UO2 AFM Dismantling Ceramics Feasibility studies Dioxyde d'uranium Photofission Differential Die-away Technique DDT Nuclear safety Liquid metal fast breeder reactors High temperature Radioactive wastes Plutonium Electrostatic calculations CFD Fission chamber MEB Inductors Oxidation Discrete element method Cesium Mixing Krypton ISM clouds Fission Fission reactor instrumentation Submillimeter ISM Automatic mesh refinement Combustible à particules Precipitation Optimisation Matrix effects Extinction Computer simulation Homogénéisation Gamma-ray spectroscopy Uranium oxides Molecular processes Uranium Neutron detector Radiation effects Silicon carbide Ablation TEM Electrical conductivity Neutron interrogation SFR Nuclear fuel reprocessing Infrared ISM Nuclear fuels Frittage Microstructure-final Fission products Heavy ions Neutron sources Modelling Actinides Monte Carlo methods Nuclear fuel Monazite Uranium dioxide Corium Optimization Detectors Astrochemistry Nuclear reactor Numerical simulations Ti3SiC2 Fission product A posteriori error estimation ISM molecules Neutron flux Fragmentation Combustible nucléaire Neutron detection Neutrons Matrix effect correction Dust