USE OF BORON OR ENRICHED BORON ISOTOPE 10B FOR URANIUM DIOXIDE

摘要

PPROBLEM TO BE SOLVED: To provide a nuclear fuel assembly distributed, in half or more of fuel rods, with a boron-containing compound used as burnable poison. PSOLUTION: This fuel assembly comprises the plurality of fuel rods including a plurality of nuclear fuel pellets in each thereof, and the at least one fuel pellet in the fuel rods of 50% or higher in the fuel assembly comprises a sintered mixture of a metal oxide, a metal carbide or metal nitride, and the boron-containing compound. PCOPYRIGHT: (C)2006,JPO&NCIPI