Enriched uranium is a type of uranium in which the percent composition of uranium-235 (written 235U) has been increased through the process of isotope...

would move its production of 20% low enriched uranium (LEU) to Fordow from Natanz. In December 2011, enrichment started. In January 2012, the IAEA announced...

ran on highly enriched uranium (HEU) fuel at 93% U-235, provided by the US, and was later converted in 1993 to use 20% enriched uranium with Argentine...

low enriched uranium. In August 2010, the IAEA said Iran had started using a second set of 164 centrifuges linked in a cascade to enrich uranium to up...

refrain from Uranium enrichment, it was discovered in 2023 that the facility was modified to continue the enrichment process, and uranium enriched to 83.7%...

natural uranium are uranium-238 (which has 146 neutrons and accounts for over 99% of uranium on Earth) and uranium-235 (which has 143 neutrons). Uranium has...

city. It was a gun-type fission weapon which used uranium that had been enriched in the isotope uranium-235 to power its explosive reaction. Little Boy...

nuclear program, making the Soviet Union the most effective supplier of enriched uranium. Franz Simon, Rudolf Peierls, Klaus Fuchs and Nicholas Kurti made important...

is used in enriching uranium for nuclear reactors and nuclear weapons. Uranium dioxide is converted with hydrofluoric acid (HF) to uranium tetrafluoride:...

natural uranium, but light water reactors must use low enriched uranium because of the higher neutron absorption of light water. Uranium enrichment removes...

enriching is downblending. Surplus highly enriched uranium can be downblended with depleted uranium or natural uranium to turn it into low-enriched uranium...

use enriched uranium. Nuclear weapons take a concentration of 90% uranium-235, and light water reactors require a concentration of roughly 3% uranium-235...

The Prohibiting Russian Uranium Imports Act (H.R. 1042) is a U.S. law enacted on May 13, 2024, banning low-enriched uranium imports from Russia. Approved...

(medium-enriched uranium). Stocks in excess of 300 kg enriched up to 3.67% would be diluted to 0.7% or sold in return for uranium ore, while uranium enriched...

uranium. Purified uranium can also be enriched into the isotope U-235. In this process, the uranium oxides are combined with fluorine to form uranium...

university, and a hospital. Iran's nuclear enrichment facilities have been damaged, but its stockpile of enriched uranium has likely been moved, and Iran likely...

was investigated for losing 200–600 pounds (91–272 kg) of highly enriched uranium, with suspicions that it had gone to Israel's nuclear weapons program...

use uranium enriched to 3–5% U-235, the only fissile isotope that is found in significant quantity in nature. One alternative to this low-enriched uranium...

of low enriched uranium (LEU) for countries that need a backup source of LEU to fuel their nuclear reactors. Countries that do have enrichment technology...

uranium enrichment activities, reaching levels of up to 60% purity. IAEA reported that Iran possesses approximately 250 kilograms of uranium enriched...

emission. Enriched uranium contains more 234U than natural uranium as a byproduct of the uranium enrichment process aimed at obtaining uranium-235, which...

more enriched uranium from a given amount of natural uranium, by re-enriching tails ultimately leaving a depleted uranium tail of lower enrichment. This...

uranium enriched to 89% was delivered to Los Alamos by July 1945. The entire 50 kg, along with some 50%-enriched, averaging out to about 85% enriched...

to 234U. Enriched uranium contains more 234U than natural uranium as a byproduct of the uranium enrichment process aimed at obtaining uranium-235, which...

natural uranium into enriched uranium and depleted uranium is the largest application. This process is crucial in the manufacture of uranium fuel for...

could be completed. Because the light water reactors would require enriched uranium to be imported from outside North Korea, the amount of reactor fuel...

U-234. If natural uranium is enriched to 3% U-235, it can be used as fuel for light water nuclear reactors. If it is enriched to 90% uranium-235, it can be...

cascade to enrich uranium "up to 19.8%", to match the previously foreign supplied fuel. 20% is the upper threshold for low enriched uranium (LEU). Though...

moderators in the core. Fuel efficiency is exceptionally high; low-enriched uranium is 120,000 times more energy dense than coal. Heat from nuclear fission...

initially conducting studies on uranium metallurgy.: 87  Uranium enrichment is an extremely difficult process because uranium in its natural state is composed...