2018 | AFC ACCOMPLISHMENTS 154 Research into enabling technologies that allow for the destruction of long lived minor actinide isotopes generated in irradiated nuclear fuel through transmutation in fast reactors is a long term goal of the Advanced Fuels Campaign (AFC). In an effort to better understand the fuel performance implications of adding minor actinides to a fuel system, the several AFC experiments have examined the performance of metallic, nitride, and ceramic fuels in approximated fast reactor neutron spectra at the Idaho National Laboratory (INL) AdvancedTest Reactor (ATR). In addition and complementary to ATR testing, systematic characterization of experiments irradiated in true fast reactors are performed in order to assess ATR in qualifying fast reactor fuel. For this purpose, postirradiation examination are performed on a selected fuel pin from the EBR-II 3.3 IRRADIATIONTESTING AND POSTIRRADIATION EXAMINATIONS Postirradiation Examination on EBR-II Legacy Metallic Fuel with Minor Actinides Principal Investigator: Jason M. Harp Collaborators: Luca Capriotti Figure 1. Neutron radiography of the fuel pin X501-G591. X501 experiment.This experiment contained unique U-19Pu-10Zr metallic fuel with the addition of minor actinides (Am).This is the only irradiated EBR-II experiment fabricated with minor actinides at the start of irradiation. Project Description: The X501 experiment was meant to characterize the behavior in pile of minor actinides bearing metallic fuel. Two sister pins (X501-G582 & X501- G591) were irradiated in EBR-II. Postirradiation Examination (PIE) were limited and only performed on X501-G582.A new systematic PIE campaign on X501-G591 has been performed at the Hot Fuel Examination Facilities (HFEF) of the Material and Fuel Complex (MFC) at INL.The PIE campaign consists of non-destructive and destructive examination such as, visual inspection, neutron radiography, dimensional exams, gamma spectroscopy, optical