b'2019 | ANNUAL REPORTThe Intermediate Voltage Electron Microscopy (IVEM) Tandem User Facility features TEM with in-situ ion irradiation for research on advanced materials for nuclear systems such as structural alloys, fuels, and complex oxides (photo courtesy of Argonne National Laboratory).NEID Nuclear Energy Infrastructure Database RTE .Rapid Turnaround Experiment NFML Nuclear Fuels and Materials Library SEM .scanning electron microscopeNMDQi.Nuclear Materials Discovery SFR .sodium fast reactor and Qualification InitiativeSMR .small modular reactorNNUF .National Nuclear User Facility TEM transmission electron microscopeNSUF Nuclear Science User Facilities TREAT Transient Reactor TestOBR .optical backscatter reflectometer WAXS .wide-angle X-ray scatteringODS .oxide dispersion strengthenedORNL Oak Ridge National LaboratoryOSURR .Ohio State University Research ReactorPI .principal investigatorPWR . pressurized water reactorRIA radiation induced attenuationRIS .radiation induced segregationRPV.reactor pressure vessel79'