Reduction in rate of radiation exposure to excore nuclear reactor components

摘要

A nuclear reactor is provided with novel composite assemblies at selected locations at the periphery of the reactor core in order to reduce the rate of radiation exposure to a critical pressure vessel weld. The composite assemblies include a shield zone at a selected location close to the weld and a fuel zone incorporating fissile material. This approach reduces the rate of radiation exposure at at the weld while also contributing to production of power by the core.