Amoeba Behavior of UO₂ Coated Particle Fuel

The data extracted from numerous irradiation tests were used to derive amoeba endurance parameters for UO₂.The data do not yet allow an unambiguous definition of the controlling mechanism, which may be due to either gaseous or solid-state diffusion processes. Adequate data on the amoeba effect are available for design of a steam-raising high-temperature gas-cooled reactor using UO₂ fuel.