What Does HEU Stand For?

HEU stands for Highly Enriched Uranium

Highly Enriched Uranium (HEU) is uranium in which the percentage of the isotope uranium-235 has been increased significantly, typically above 20%. It is primarily used as fuel in research reactors and in the production of nuclear weapons. The enrichment process enhances its fissile properties, making HEU a critical material in both civilian nuclear power and military applications, raising concerns about proliferation and nuclear safety.