b'Page 189 Page 236Transient Heat sink OverpowerCross-sectional Scanning ElectronResponse (THOR)-MOXTOP - 1Microscopy (SEM) image of an Instrumentation Assembly atAdvanced Test Reactor (ATR) the Measurement Science Labirradiated HT-9 clad/U-10Zr fuel (MSL). (T. Smuin) with Cr diffusion barrier (top). The high-resolution SEM image (bottom) reveals the interaction between the fuel and the Cr diffu-sion barrier, but no interaction between the fuel and the clad after Page 218 irradiation testing. ((Y. Wang)Transient Heat sink Overpower Response (THOR)-mixed oxidePage 241transient overpower (MOXTOP) - 1 pin loading at the Hot FuelCharacterization of SiC Examination Facility (HFEF) (T.composite cladding after Smuin) TREAT safety test by High Resolution Transmission Electron Microscopy via remote controls. Scientists: Tiankai Yao and Fei Xu (P.Xu)Page 225Removing BRR cask from transport trailer in HFEF. (E. Woolstenhulme)2023|AFC ACCOMPLISHMENTS 243'