Plutonium is a chemical element; it has symbol Pu and atomic number 94. It is a silvery-gray actinide metal that tarnishes when exposed to air, and forms a dull coating when oxidized. The …

Each fission of plutonium-239 resulting from a slow neutron absorption results in the production of a little more than two neutrons on the average. If at least one of these neutrons, on average, …

2023年8月16日 · Plutonium is the principal fuel in a fast neutron reactor, and in any reactor it is progressively bred from non-fissile U-238 that comprises over 99% of natural uranium. …

2011年5月1日 · The pressure dependence of the initiation and nucleation phases of the plutonium hydriding reaction have been determined, at 25 °C, over the pressure range 10–1000 mbar for …

Uranium and plutonium are recovered from irradiated nuclear fuel through the widely practiced plutonium-uranium extraction, or Purex, process. In this solvent-extraction process, the fuel …

1984年2月1日 · In early reports, the reaction of plutonium with water is described as ″very slow at room temperature″ [1]. The product is a finely divided black solid which prior workers have …

oxides play a potent role in plutonium corrosion. These compounds appear to be catalysts, causing anomalous corrosion reactions to proceed at enormous rates. “Runaway” reactions …

2025年1月31日 · plutonium (Pu), radioactive chemical element of the actinoid series of the periodic table, atomic number 94. It is the most important transuranium element because of its …

2014年6月5日 · As these neutrons hit other atoms of plutonium-239, an exponentially fast chain reaction is produced. Plutonium Production. Plutonium production was essential for the …

Plutonium-239 is a highly fissionable material, making it ideal for constructing an atomic bomb. However, Manhattan Project physicists discovered a problem with plutonium fuel. When …