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Nuclear weapons: Difference between revisions
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*** <sup>240</sup>Pu becomes a <sup>241</sup>Pu rather than compound {<sup>241</sup>Pu} (fission precursor), meaning two neutrons (and associated time) minimum to yield a possible fission event. Predetonation hazard due to spontaneous fissions. Burnable in a recycling reactor, but a weapon contaminant. | *** <sup>240</sup>Pu becomes a <sup>241</sup>Pu rather than compound {<sup>241</sup>Pu} (fission precursor), meaning two neutrons (and associated time) minimum to yield a possible fission event. Predetonation hazard due to spontaneous fissions. Burnable in a recycling reactor, but a weapon contaminant. | ||
*** <sup>241</sup>Pu is highly fissile. Undesirable in weapons due to short half-life (α to useless <sup>241</sup>Am). | *** <sup>241</sup>Pu is highly fissile. Undesirable in weapons due to short half-life (α to useless <sup>241</sup>Am). | ||
*** <sup>242</sup>Pu is the Smerdyakov of plutonium, gone wrong every possible way. | *** <sup>242</sup>Pu is the Smerdyakov of plutonium, gone wrong every possible way. <sup>242</sup>Pu ought neither be purchased nor accepted as a gift. | ||
** Fission energy neutrons' effects generally follow those of thermal neutrons (probability of fission is generally reduced, but comparable). | ** Fission energy neutrons' effects generally follow those of thermal neutrons (probability of fission is generally reduced, but comparable). | ||
* Enrichment levels - enrichment methods - degradation - downblending | * Enrichment levels - enrichment methods - degradation - downblending |