b'SEM Comparison Between Three Transmutation Fuel Experiments: X501, FUTURIX FTA, AFC-1HPrincipal Investigator: Luca Capriotti, INLTeam Members/ Collaborators: Jason Harp, INLScanning electron microscopy on three transmutation metallic fuel experiments have shown that the microstructure evolution under irradiation is not affected by minor actinides addition.Apostirradiation examination (PIE) long term objective of the Advanced Fuels Campaignand advance microscopy are (AFC) is the investigationperformed on selected fuel pins into enabling technologies thatfrom the FUTURIX-FTA (Phenix allow for the destruction of long- sodium fast reactor) and the lived minor actinides generatedExperimental Breeder Reactor (EBR-in irradiated nuclear fuel throughII) X501 experiments.transmutation in fast reactors. InProject Description: an effort to better understand theThe PIE and microscopy exams such fuel performance implications ofas scanning electron microscopy adding minor actinides to a fuel(SEM) have been completed on system, several AFC irradiationthree irradiated transmutation experiments have examined themetallic fuel experiments in order performance of metallic, nitride, andto characterize and compare ceramic fuels in approximated fastthe different behavior in pile reactor neutron spectra at the Idahoand microstructures evolution National Laboratory Advanced Testunder irradiation. For the SEM Reactor (INL ATR). In addition andanalysis, samples were taken from complementary to ATR experiments,AFC-1H experiment in ATR and systematic characterizations ofFUTURIX-FTA experiment in the experiments irradiated in true fastPhenix sodium fast reactor (France). reactors are performed in order toThese are sibling experiments assess ATR in testing fast reactor of 35U-29Pu-4Am-2Np-30Zr fuel. For this purpose, 212 2019|AFC ACCOMPLISHMENTS'