What is depleted uranium?

Depleted Uranium

Depleted uranium (DU; also referred to in the past as Q-metal, depletalloy or D-38) is uranium with a lower content of the fissile isotope U-235 than natural uranium. (Natural uranium is about 99.27% U-238, 0.72% U-235—the fissile isotope, and 0.0055% U-234). Uses of DU take advantage of its very high density of 19.1 g/cm3 (68.4% denser than lead). Civilian uses include counterweights in aircraft, radiation shielding in medical radiation therapy and industrial radiography equipment and containers used to transport radioactive materials. Military uses include defensive armor plating and armor-piercing projectiles.

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Some articles on depleted uranium:

Staballoy
... Staballoys are metal alloys of a high proportion of depleted uranium with other metals, usually titanium or molybdenum, designed for use in kinetic energy ... One formulation has a composition of 99.25% of depleted uranium and 0.75% of titanium ... An emerging alternative alloy of depleted uranium is Stakalloy ...
Traveling Wave Reactor - Fuel
... reactors (LWRs), TWRs use only a small amount (~10%) of enriched uranium-235 or other fissile fuel to initiate the nuclear reaction ... The remainder of the fuel consists of natural or depleted uranium-238, which can generate power continuously for 40 years or more and remains sealed in the reactor vessel ... Depleted uranium is widely available as a feedstock ...
Boosted Fission Weapon - Some Early Non-staged Thermonuclear Weapon Designs
... Слойка), used large amounts of fusion to induce fission in the uranium-238 atoms that make up depleted uranium ... surrounded by a layer of lithium-6 deuteride, in turn surrounded by a layer of depleted uranium ... the fission of the highly enriched uranium or plutonium core creates neutrons, some of which escape and strike atoms of lithium-6, creating tritium ...
Gaza War - Effects - Health Problems in Gaza
... During the war, Norwegian medics said that they had found traces of depleted uranium, a radioactive and genotoxic material used in some types of munition, in some ... samples from Gaza said that areas where these samples were taken contained up to 75 tons of depleted uranium ... The Israeli government denied it used Depleted Uranium, and the United Nations opened an investigation ...
Depleted Uranium - Health Considerations - Safety and Environmental Issues
... About 95% of the depleted uranium produced till now is stored as uranium hexafluoride, (D)UF6, in steel cylinders in open air yards close to enrichment plants ... alone, 560,000 tonnes of depleted UF6 had accumulated by 1993 ... There have been several accidents involving uranium hexafluoride in the United States ...