Topic summary
Pu-239
Extracted from the Wikipedia article Plutonium-239.
Plutonium-239 (
Pu or Pu-239) is an isotope ofplutonium. Plutonium-239 is the primary fissile isotope used for the production of nuclear weapons, although uranium-235 is also used for that purpose. Plutonium-239 is also one of the three isotopes that have been demonstrated to be usable as fuel in thermal spectrum nuclear reactors, along with uranium-235 and uranium-233. Plutonium-239 has a half-life of 24,110 years.