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- Uranium-238 abstract "Uranium-238 (238U 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. 238U 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. Doppler broadening of U-238's neutron absorption resonances, increasing absorption as fuel temperature increases, is also an essential negative feedback mechanism for reactor control.Around 99.284% of natural uranium is uranium-238, which has a half-life of 1.41×1017 seconds (4.468×109 years, or 4.468 billion years).Depleted uranium has an even higher concentration of the 238U isotope, and even low-enriched uranium (LEU), while having a higher proportion of the uranium-235 isotope (in comparison to depleted uranium), is still mostly 238U. Reprocessed uranium is also mainly 238U, with about as much uranium-235 as natural uranium, a comparable proportion of uranium-236, and much smaller amounts of other isotopes of uranium such as uranium-234, uranium-233, and uranium-232.".
- Uranium-238 thumbnail Uranium03.jpg?width=300.
- Uranium-238 wikiPageExternalLink r?dbs+hsdb:@term+@na+@rel+uranium,+radioactive.
- Uranium-238 wikiPageExternalLink U238.
- Uranium-238 wikiPageID "481862".
- Uranium-238 wikiPageRevisionID "605756584".
- Uranium-238 abundance "99.284".
- Uranium-238 after Isotopes_of_thorium.
- Uranium-238 background "#fc6".
- Uranium-238 before "plutonium-242 '''".
- Uranium-238 before "protactinium-238".
- Uranium-238 decayEnergy "4.267".
- Uranium-238 decayMass "234".
- Uranium-238 decayMode Alpha_decay.
- Uranium-238 decayProduct "Thorium-234".
- Uranium-238 decaySymbol "Th".
- Uranium-238 element "uranium".
- Uranium-238 halflife "1.409993568E17".
- Uranium-238 hasPhotoCollection Uranium-238.
- Uranium-238 heavier Isotopes_of_uranium.
- Uranium-238 imageCaption "10".
- Uranium-238 lighter "uranium-237".
- Uranium-238 mass "238.05078826".
- Uranium-238 massNumber "238".
- Uranium-238 numNeutrons "146".
- Uranium-238 numProtons "92".
- Uranium-238 parent "Plutonium-242".
- Uranium-238 parent "Protactinium-238".
- Uranium-238 parent2Decay "b-".
- Uranium-238 parent2Mass "238".
- Uranium-238 parent2Symbol "Pa".
- Uranium-238 parentDecay "a".
- Uranium-238 parentMass "242".
- Uranium-238 parentSymbol "Pu".
- Uranium-238 symbol "U".
- Uranium-238 subject Category:Actinides.
- Uranium-238 subject Category:Fertile_materials.
- Uranium-238 subject Category:Isotopes_of_uranium.
- Uranium-238 subject Category:Uranium.
- Uranium-238 comment "Uranium-238 (238U 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. 238U 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.".
- Uranium-238 label "Uranium 238".
- Uranium-238 label "Uranium-238".
- Uranium-238 label "Uranium-238".
- Uranium-238 label "Urânio-238".
- Uranium-238 label "Уран-238".
- Uranium-238 label "يورانيوم-238".
- Uranium-238 label "ウラン238".
- Uranium-238 label "鈾-238".
- Uranium-238 sameAs Uranium_238.
- Uranium-238 sameAs Uranium-238.
- Uranium-238 sameAs ウラン238.
- Uranium-238 sameAs 우라늄-238.
- Uranium-238 sameAs Uranium-238.
- Uranium-238 sameAs Urânio-238.
- Uranium-238 sameAs m.02fs1_.
- Uranium-238 sameAs Q1148503.
- Uranium-238 sameAs Q1148503.
- Uranium-238 wasDerivedFrom Uranium-238?oldid=605756584.
- Uranium-238 depiction Uranium03.jpg.
- Uranium-238 isPrimaryTopicOf Uranium-238.