| 摘要 |
<p>A core of a nuclear reactor wherein the core is provided with a new fuel part 11 at which new fuel is loaded and a burning part 12 where the fuel burns, plutonium which is produced from uranium fissions to generate output, and the burning part 12 moves from the beginning to end of the burning cycle, wherein when dividing the core, which is substantially circular when viewed by a plan view, into a center part and a peripheral part, the new fuel part 11 is formed so that the weight of uranium per unit volume at the center part becomes smaller than the weight of uranium per unit volume at the peripheral part.</p> |
