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Hanford Site. Coordinates: 46°38′51″N 119°35′55″W. Nuclear reactors line the riverbank at the Hanford Site along the Columbia River in January 1960. The N Reactor is in the foreground, with the twin KE and KW Reactors in the immediate background. The historic B Reactor, the world's first plutonium production reactor, is visible in the ...
Plutonium–gallium–cobalt alloy (PuCoGa 5) is an unconventional superconductor, showing superconductivity below 18.5 K, an order of magnitude higher than the highest between heavy fermion systems, and has large critical current. [45] [49] Plutonium–zirconium alloy can be used as nuclear fuel. [50]
Historically, most plutonium-238 has been produced by Savannah River in their weapons reactor, by irradiating neptunium-237 (half life 2.144 Ma) with neutrons. [7] 237 93 Np + n → 238 93 Np. Neptunium-237 is a by-product of the production of plutonium-239 weapons-grade material, and when the site was shut down in 1988, 238 Pu was mixed with ...
The demon core (like the core used in the bombing of Nagasaki) was, when assembled, a solid 6.2-kilogram (14 lb) sphere measuring 8.9 centimeters (3.5 in) in diameter.. It consisted of three parts made of plutonium-gallium: two hemispheres and an anti-jet ring, designed to keep neutron flux from "jetting" out of the joined surface between the hemispheres during implosi
Reactor-grade plutonium. Reactor-grade plutonium (RGPu)[1][2] is the isotopic grade of plutonium that is found in spent nuclear fuel after the uranium-235 primary fuel that a nuclear power reactor uses has burnt up. The uranium-238 from which most of the plutonium isotopes derive by neutron capture is found along with the U-235 in the low ...
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The official estimate for the total yield of the Trinity bomb, which includes the energy of the blast component together with the contributions from the explosion's light output and both forms of ionizing radiation, is 21 kilotons of TNT (88 TJ), [136] of which about 15 kilotons of TNT (63 TJ) was contributed by fission of the plutonium core ...
The Fissile Material Cutoff Treaty (FMCT) is a proposed international treaty to prohibit the further production of fissile material for nuclear weapons or other explosive devices. [1] The treaty has not been negotiated and its terms remain to be defined. According to a proposal by the United States, fissile material includes high-enriched ...