Device for Mitigating Serious Accidents for a Nuclear Fuel Assembly, With Improved Effectiveness

摘要

Passive safety device (104) designed to be placed near the top of a nuclear fuel assembly (102), comprising:;a neutron-absorbing material and a material capable of forming a low melting point eutectic with the material forming the cladding of the nuclear fuel rods (8) in the assembly (102), and;fused means (28) to retain said materials in the high position in the assembly (102).