Plutonium-238 (238Pu or Pu-238) is a radioactive isotope of plutonium that has a half-life of 87.7 years. Plutonium-238 is a very powerful alpha emitter;...
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of plutonium dangerous. Plutonium was first synthetically produced and isolated in late 1940 and early 1941, by a deuteron bombardment of uranium-238 in...
141 KB (15,142 words) - 23:03, 18 May 2024
and these neutrons can be absorbed by uranium-238 to produce plutonium-239 and other isotopes. Plutonium-239 can also absorb neutrons and fission along...
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isotope synthesized being plutonium-238 in 1940. Twenty plutonium radioisotopes have been characterized. The most stable are plutonium-244 with a half-life...
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space by the United States was SNAP 3B in 1961 powered by 96 grams of plutonium-238 metal, aboard the Navy Transit 4A spacecraft. One of the first terrestrial...
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(Pu/U)0 time dependence. Unlike plutonium-238, plutonium-239, plutonium-240, plutonium-241, and plutonium-242, plutonium-244 is not produced in quantity...
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Atomic battery (redirect from Plutonium batteries)
Medtronic and Alcatel developed a plutonium-powered pacemaker, the Numec NU-5, powered by a 2.5 Ci slug of plutonium 238, first implanted in a human patient...
25 KB (2,727 words) - 00:41, 24 May 2024
commercial uses at present, it is used as a precursor for the formation of plutonium-238, which is in turn used in radioisotope thermal generators to provide...
112 KB (13,575 words) - 12:37, 26 May 2024
one neutron capture include: plutonium-238 which converts into plutonium-239 plutonium-240 which converts into plutonium-241 Some other actinides need...
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However, about 66% of the plutonium from a bomb explosion is formed by the neutron capture of uranium-238; this plutonium is not converted by the bomb...
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Plutonium-238, U.S. Department of Energy: Office of Scientific & Technical Information Amory B. Lovins, Nuclear weapons and power-reactor plutonium,...
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be extracted via the chemical ion-exchange process from samples of plutonium-238 that have been aged somewhat to allow some decay to 234U via alpha emission...
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Plutonium(IV) oxide, or plutonia, is a chemical compound with the formula PuO2. This high melting-point solid is a principal compound of plutonium. It...
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MOX fuel (category Plutonium compounds)
uranium-238. Most of the fuel mass in a reactor is uranium-238. By neutron capture and two successive beta decays, uranium-238 becomes plutonium-239, which...
20 KB (2,545 words) - 00:45, 3 February 2024
Isotopes of uranium (section Uranium-238)
Uranium-238 is also important because it is fertile: it absorbs neutrons to produce a radioactive isotope that subsequently decays to the isotope plutonium-239...
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sprayed in the face with liquid plutonium chloride, causing him to accidentally swallow some. Plutonium-238 and plutonium-239 are exceedingly difficult...
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and uranium-232. In a fission nuclear reactor, uranium-238 can be used to generate plutonium-239, which itself can be used in a nuclear weapon or as...
22 KB (2,809 words) - 08:56, 18 May 2024
Plutonium–gallium alloy (Pu–Ga) is an alloy of plutonium and gallium, used in nuclear weapon pits, the component of a nuclear weapon where the fission...
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Weapons-grade nuclear material (redirect from Weapons-grade plutonium)
"Standard weapon grade plutonium requires a Pu-240 content of no more than 6.5%." which is 65,000 PPM, and the analogous Pu-238 was produced in levels...
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Nuclear fuel (section Molten plutonium)
Not all types of nuclear fuels create power from nuclear fission; plutonium-238 and some other isotopes are used to produce small amounts of nuclear...
56 KB (7,010 words) - 15:14, 24 May 2024
– but from the plutonium isotope 239 Pu . The latter needs to be produced first, according to the following nuclear process: 92 238 U → ( n , γ )...
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about one watt of heat each, derived from the decay of a few grams of plutonium-238—although other radioactive isotopes could be used. The heat produced...
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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...
51 KB (5,754 words) - 20:11, 27 September 2023
generators (RTGs) mounted on a boom. Each MHW-RTG contains 24 pressed plutonium-238 oxide spheres. The RTGs generated about 470 W of electric power at the...
110 KB (8,604 words) - 10:10, 23 May 2024
lifetime as neutron sources. Californium-252 (spontaneous fission) Plutonium-238 & beryllium, (α,n) reaction americium-241 & beryllium, (α,n) reaction...
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Mound supplied enriched non-radioactive isotopes. The lab also produced plutonium-238-powered thermoelectric heat sources called SNAP or Systems for Nuclear...
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kilogram quantities of plutonium-238 oxide; this heat is also transformed into electricity with thermopiles. The decay of plutonium-238 produces relatively...
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atomic battery using 210Po was developed by 1958. However, the isotope plutonium-238 was chosen instead, as it has a longer half-life of 87.7 years. Polonium-210...
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efficient than previous radioisotope systems, using one quarter of the plutonium-238 to produce the same amount of power. Despite termination of the ASRG...
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contains large amounts of undesirable contaminants: plutonium-240, plutonium-241, and plutonium-238. These isotopes are extremely difficult to separate...
111 KB (12,767 words) - 11:38, 29 April 2024