ウラン238
1. Uranium-238Uranium-238 (U or U-238) is the most common isotope of uranium found in nature. It is not fissile, but is a fertile material: it can capture a slow neutron and after two beta decays become fissile plutonium-239. U is fissionable by fast neutrons, but cannot support a chain reaction because inelastic scattering reduces neutron energy below the range where fast fission of one or more next-generation nuclei is probable.
Read “Uranium-238” on English Wikipedia
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Read “Uranium-238” on DBpedia
Read “Uranium-238” on English Wikipedia
Read “ウラン238” on Japanese Wikipedia
Read “Uranium-238” on DBpedia
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