| abstract |
Said nuclear fuel assembly (16) for a pressurised water nuclear reactor comprises nuclear fuel rods (24), guide tubes (31) for receiving absorbent rods from a control cluster and, optionally, an instrumentation tube, the rods (24) being distributed into two areas (41, 42): - a central area (41), all the rods (24) of the central area (41) being rods (24) whose fuel, before irradiation, is exclusively composed of a mixture of uranium and plutonium oxide; and - a peripheral area (42) extending along outer surfaces of the assembly (16), all the rods of the peripheral area (42) being rods (24) containing, before irradiation, uranium oxide but no plutonium oxide. |