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Nuclear weapons: Difference between revisions
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===Reactor Physics/Fuel Cycle=== | ===Reactor Physics/Fuel Cycle=== | ||
* Natural materials available: | * Natural materials available: | ||
** Uranium. Terrestrial uranium ore of this epoch tends toward a 99.284%/0.711%/0.0058% <sup>238</sup>U/<sup>235</sup>U/<sup>234</sup>U split. | ** Uranium. Terrestrial uranium ore of this epoch tends toward a 99.284% / 0.711% / 0.0058% <sup>238</sup>U/<sup>235</sup>U/<sup>234</sup>U split. | ||
** Thorium. For all purposes, entirely <sup>232</sup>Th (look at the half-lives). | ** Thorium. For all purposes, entirely <sup>232</sup>Th (look at the half-lives). | ||
* No point in breeding up from lower Z's than <sup>232</sup>Th - No meaningful sources of other actinides | * No point in breeding up from lower Z's than <sup>232</sup>Th - No meaningful sources of other actinides | ||
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* W. G. Sutcliffe and T.J. Trapp. eds. "Extraction and Utility of Reactor-Grade Plutonium for Weapons", Lawrence Livermore National Laboratory. UCRL-LR-I 15542, 1994 (S/RD). | * W. G. Sutcliffe and T.J. Trapp. eds. "Extraction and Utility of Reactor-Grade Plutonium for Weapons", Lawrence Livermore National Laboratory. UCRL-LR-I 15542, 1994 (S/RD). | ||
* US DOE "Nonproliferation and Arms Control Assessment of Weapons-Usable Fissile Material Storage and Excess Plutonium Disposition Alternatives", 1997. | * US DOE "Nonproliferation and Arms Control Assessment of Weapons-Usable Fissile Material Storage and Excess Plutonium Disposition Alternatives", 1997. | ||
==Fission Weapons== | ==Fission Weapons== | ||
* Criticality - subcritical - supercritical - prompt criticality - critical insertion time - insertion (gun-type) method - spontaneous fission | * Criticality - subcritical - supercritical - prompt criticality - critical insertion time - insertion (gun-type) method - spontaneous fission |