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• Plutonium-240 abstract "Plutonium-240 (Pu-240) is an isotope of the metal plutonium formed when plutonium-239 captures a neutron. About 62% to 73% of the time when Pu-239 captures a neutron it undergoes fission; the rest of the time it forms Pu-240. The longer a nuclear fuel element remains in a nuclear reactor the greater the relative percentage of Pu-240 in the fuel becomes. For weapons use, the fuel needs to be as low in Pu-240 as possible, usually less than 7% of the total plutonium (this is because Pu-240 sometimes undergoes spontaneous fission, causing the weapon to detonate prematurely), but this is achieved by reprocessing the fuel after just 90 days of use. Such rapid fuel cycles are highly impractical for civilian power reactors and are normally only carried out with dedicated weapons plutonium production reactors. Plutonium from spent civilian power reactor fuel typically has under 70% Pu-239 and around 26% Pu-240, the rest being made up of other plutonium isotopes, making it extremely difficult but not technically impossible to use it for manufacturing nuclear weapons.240Pu has only about 1⁄3 as large a neutron absorption cross section as 239Pu, and nearly always becomes plutonium-241 rather than fissioning. In general, isotopes of odd mass number are both more likely to absorb a neutron, and more likely to fission on neutron absorption, than isotopes of even mass number. Thus, even mass isotopes tend to accumulate, especially in a thermal reactor.".
• Plutonium-240 wikiPageExternalLink r?dbs+hsdb:@term+@na+@rel+plutonium,+radioactive.
• Plutonium-240 wikiPageID "6084563".
• Plutonium-240 wikiPageLength "3083".
• Plutonium-240 wikiPageOutDegree "31".
• Plutonium-240 wikiPageRevisionID "617860946".
• Plutonium-240 wikiPageWikiLink Alpha_decay.
• Plutonium-240 wikiPageWikiLink Beta_decay.
• Plutonium-240 wikiPageWikiLink Burnup.
• Plutonium-240 wikiPageWikiLink Category:Actinides.
• Plutonium-240 wikiPageWikiLink Category:Fertile_materials.
• Plutonium-240 wikiPageWikiLink Category:Isotopes_of_plutonium.
• Plutonium-240 wikiPageWikiLink Curium-244.
• Plutonium-240 wikiPageWikiLink Fizzle_(nuclear_test).
• Plutonium-240 wikiPageWikiLink Isotope.
• Plutonium-240 wikiPageWikiLink Isotopes_of_curium.
• Plutonium-240 wikiPageWikiLink Isotopes_of_neptunium.
• Plutonium-240 wikiPageWikiLink Isotopes_of_plutonium.
• Plutonium-240 wikiPageWikiLink Mass_number.
• Plutonium-240 wikiPageWikiLink Metal.
• Plutonium-240 wikiPageWikiLink Neptunium-240.
• Plutonium-240 wikiPageWikiLink Neutron.
• Plutonium-240 wikiPageWikiLink Neutron_capture.
• Plutonium-240 wikiPageWikiLink Neutron_cross-section.
• Plutonium-240 wikiPageWikiLink Neutron_cross_section.
• Plutonium-240 wikiPageWikiLink Nuclear_fission.
• Plutonium-240 wikiPageWikiLink Nuclear_fuel.
• Plutonium-240 wikiPageWikiLink Nuclear_reactor.
• Plutonium-240 wikiPageWikiLink Nuclear_reprocessing.
• Plutonium-240 wikiPageWikiLink Nuclear_weapon.
• Plutonium-240 wikiPageWikiLink Plutonium.
• Plutonium-240 wikiPageWikiLink Plutonium-239.
• Plutonium-240 wikiPageWikiLink Plutonium-241.
• Plutonium-240 wikiPageWikiLink Thermal-neutron_reactor.
• Plutonium-240 wikiPageWikiLink Thermal_reactor.
• Plutonium-240 wikiPageWikiLink Uranium-236.
• Plutonium-240 wikiPageWikiLinkText "Plutonium-240".
• Plutonium-240 wikiPageWikiLinkText "Pu".
• Plutonium-240 wikiPageWikiLinkText "Pu-240".
• Plutonium-240 wikiPageWikiLinkText "plutonium".
• Plutonium-240 wikiPageWikiLinkText "plutonium-240".
• Plutonium-240 abundance "0".
• Plutonium-240 after "uranium-236 '''".
• Plutonium-240 before Curium-244.
• Plutonium-240 before Isotopes_of_curium.
• Plutonium-240 before Plutonium-239.
• Plutonium-240 before "neptunium-240".
• Plutonium-240 decayEnergy "5.255".
• Plutonium-240 decayMode Alpha_decay.
• Plutonium-240 element "plutonium".
• Plutonium-240 halflife "2.071125288E11".
• Plutonium-240 hasPhotoCollection Plutonium-240.
• Plutonium-240 heavier Plutonium-241.
• Plutonium-240 lighter Plutonium-239.
• Plutonium-240 massNumber "240".
• Plutonium-240 numNeutrons "146".
• Plutonium-240 numProtons "94".
• Plutonium-240 symbol "Pu".
• Plutonium-240 wikiPageUsesTemplate Template:Citation_needed.
• Plutonium-240 wikiPageUsesTemplate Template:Frac.
• Plutonium-240 wikiPageUsesTemplate Template:Infobox_isotope.
• Plutonium-240 wikiPageUsesTemplate Template:Isotope.
• Plutonium-240 wikiPageUsesTemplate Template:Isotope-stub.
• Plutonium-240 subject Category:Actinides.
• Plutonium-240 subject Category:Fertile_materials.
• Plutonium-240 subject Category:Isotopes_of_plutonium.
• Plutonium-240 hypernym Isotope.
• Plutonium-240 type Article.
• Plutonium-240 type Drug.
• Plutonium-240 type Group.
• Plutonium-240 type Actinide.
• Plutonium-240 type Article.
• Plutonium-240 type Element.
• Plutonium-240 type Group.
• Plutonium-240 type Isotope.
• Plutonium-240 comment "Plutonium-240 (Pu-240) is an isotope of the metal plutonium formed when plutonium-239 captures a neutron. About 62% to 73% of the time when Pu-239 captures a neutron it undergoes fission; the rest of the time it forms Pu-240. The longer a nuclear fuel element remains in a nuclear reactor the greater the relative percentage of Pu-240 in the fuel becomes.".
• Plutonium-240 label "Plutonium-240".
• Plutonium-240 sameAs Plutoni-240.
• Plutonium-240 sameAs Πλουτώνιο-240.
• Plutonium-240 sameAs प्लूटोनियम-२४०.
• Plutonium-240 sameAs プルトニウム240.
• Plutonium-240 sameAs Plutônio-240.
• Plutonium-240 sameAs m.0fpcsn.
• Plutonium-240 sameAs Плутоний-240.
• Plutonium-240 sameAs Q2330653.
• Plutonium-240 sameAs Q2330653.
• Plutonium-240 wasDerivedFrom Plutonium-240?oldid=617860946.
• Plutonium-240 isPrimaryTopicOf Plutonium-240.