highly enriched uranium

Highly enriched uranium (HEU) refers to uranium that has been processed to increase the concentration of the fissile isotope uranium-235 (U-235). Natural uranium contains only about 0.7% U-235, while HEU typically contains 20% or more U-235, and weapons-grade uranium contains 90% or more. This enrichment process is crucial for both nuclear power reactors and nuclear weapons. HEU is currently newsworthy due to ongoing diplomatic discussions between the US and Iran concerning Iran's nuclear program. Reports suggest that a tentative agreement might involve discussions about Iran's remaining stockpile of HEU. Potential outcomes discussed include the US taking possession of the HEU, or jointly diluting it within Iran or at a third location. The management and disposition of HEU stockpiles are significant because of their potential dual-use nature, posing proliferation risks if not secured and monitored. The current relevance lies in its role as a key technical issue in international nuclear diplomacy, particularly in efforts to de-escalate tensions and prevent nuclear proliferation.