• Thumbnail for Plutonium-238
    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;...
    38 KB (3,994 words) - 12:08, 1 April 2024
  • Thumbnail for Plutonium
    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 (15,146 words) - 18:21, 23 April 2024
  • Thumbnail for Plutonium-239
    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...
    19 KB (2,092 words) - 22:07, 29 April 2024
  • Thumbnail for Radioisotope thermoelectric generator
    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...
    64 KB (6,999 words) - 12:35, 17 March 2024
  • isotope synthesized being plutonium-238 in 1940. Twenty plutonium radioisotopes have been characterized. The most stable are plutonium-244 with a half-life...
    26 KB (2,622 words) - 02:25, 21 April 2024
  • Thumbnail for Plutonium-244
    (Pu/U)0 time dependence. Unlike plutonium-238, plutonium-239, plutonium-240, plutonium-241, and plutonium-242, plutonium-244 is not produced in quantity...
    14 KB (1,698 words) - 22:16, 24 March 2024
  • Thumbnail for Plutonium in the environment
    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...
    27 KB (2,987 words) - 14:41, 29 March 2024
  • Thumbnail for Fertile material
    one neutron capture include: plutonium-238 which converts into plutonium-239 plutonium-240 which converts into plutonium-241 Some other actinides need...
    5 KB (683 words) - 09:18, 21 June 2023
  • 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 (2,726 words) - 14:50, 23 January 2024
  • Thumbnail for Weapons-grade nuclear material
    "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...
    13 KB (2,075 words) - 00:23, 10 January 2024