…Both natural and enriched uranium are used as nuclear fuel. In addition, the product of uranium enrichment, which has a lower proportion of 235 U and a higher proportion of 238 U than in natural uranium, is called depleted uranium. 238 U itself is not fissile, but it is important as a fertile material for nuclear fuel, as it changes into fissile plutonium 239 239 Pu through repeated neutron capture and beta decay. … *Some of the terminology explanations that mention "depeted uranium" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…天然ウラン,濃縮ウランはともに核燃料として使用される。また,ウラン濃縮の際に生じる,235Uの割合が天然のものよりも少なく238Uの割合が多くなったものを減損ウランあるいは劣化ウランdepeted uraniumと呼ぶ。238U自身は核分裂性ではないが,中性子の捕獲とβ崩壊をくりかえすことによって核分裂性のプルトニウム239239Puに変化する核燃料親物質として重要である。… ※「depeted uranium」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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