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FUEL ASSEMBLY FOR A PRESSURISED WATER NUCLEAR REACTOR CONTAINING PLUTONIUM-FREE ENRICHED URANIUM
FUEL ASSEMBLY FOR A PRESSURISED WATER NUCLEAR REACTOR CONTAINING PLUTONIUM-FREE ENRICHED URANIUM
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机译:含无LU富铀的加压水核反应器的燃料组件
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摘要
This fuel assembly for a pressurized water nuclear reactor comprises fuel rods which are arranged at the nodes of a substantially regular network which has a polygonal outer contour, the fuel rods containing uranium which is enriched in isotope 235 and not containing any plutonium before the assembly is used in a reactor. The rods are distributed in at least a first central group which is constituted by fuel rods which have a first level of nuclear reactivity, and an outer peripheral layer of fuel rods which have a level/levels of nuclear reactivity which is/are strictly less than the first level of reactivity.
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