2018 | AFC ACCOMPLISHMENTS 196 OECD........................................................................ Organization for Economic Cooperation and Development OM........................................................................................................................................... Optical Microscope ORNL....................................................................................................................Oak Ridge National Laboratory PCMI........................................................................................................Pellet-cladding Mechanical Interaction PCT......................................................................................................................................Peak CladTemperature PI...........................................................................................................................................Principal Investigator PIE..............................................................................................................................Postirradiation Examination PNNL.........................................................................................................Pacific Northwest National Laboratory PWR...............................................................................................................................PressurizedWater Reactor R&D................................................................................................................................. Research & Development RD&D............................................................................................... Research, Development, and Demonstration RIA............................................................................................................................Reactivity-Initiated Accident RPI........................................................................................................................Rensselaer Polytechnic Institute RT..............................................................................................................................................RoomTemperature RUS.................................................................................................................Resonant Ultrasound Spectroscopy SAR.......................................................................................................................................Safety Analysis Report SATS............................................................................................................................Severe AccidentTest Station SEM.........................................................................................................................Scanning Electron Microscopy SERTTA..................................................................................Static Environment RodletTransientTest Apparatus SET......................................................................................................................................Separate EffectsTesting SETH........................................................................................................................... Separate EffectsTest Holder SFR..........................................................................................................................................Sodium Fast Reactor SiC...................................................................................................................................................Silicon Carbide SIMS.................................................................................................................. Secondary Ion Mass Spectroscopy SO..............................................................................................................................................System Operability SPGD....................................................................................................................Self-powered Gamma Detectors