| 摘要 |
PROBLEM TO BE SOLVED: To provide a nuclear reactor of low reprocessing cost with its nuclear proliferation resistivity enhanced in order to make it difficult for a nuclear fuel assembly loaded into the nuclear reactor to be abused by terrorists. SOLUTION: The nuclear fuel assembly is obtained by square arranging nuclear fuel rods with nuclear fuel pellets sealed therein and by bundling them up. The fuel pellets comprise mixed oxide (MOX) of uranium having an in-manufacture unburntness multiplication factor not more than prompt criticality and plutonium, and have a plutonium enrichment degree not more than 10 wt%. This gas-cooled nuclear reactor is obtained by improving a boiling water nuclear reactor so as to load the fuel assembly thereon. COPYRIGHT: (C)2007,JPO&INPIT
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