High-assay low-enriched uranium

HALEU

High-assay low-enriched uranium: uranium enriched to between 5% and just under 20% uranium-235, as the US Department of Energy defines it. It is still formally low-enriched, because the international line for highly enriched uranium is 20%, which is why many designs specify 19.75%. The binding supply constraint for many advanced reactor designs. The 5 to 10% part, which carries lighter US physical-security requirements than material from 10% up, is also tagged as LEU+. A developer calling fuel in that band 'LEU' is making a labelling choice, not describing a different enrichment.

Vocabulary id: fuel:haleu
Scheme: Fuels
Records using it: 21

Organisations 19

ASP Isotopes Blykalla BWX Technologies Centrus Energy GE Vernova Hitachi Nuclear Energy General Matter Kairos Power Lightbridge NANO Nuclear Energy Natura Resources Oklo Radiant Shanghai Institute of Applied Physics, Chinese Academy of Sciences Silex Systems Standard Nuclear TerraPower Urenco Valar Atomics X-energy

Devices 2

Hermes test reactor Akademik Lomonosov

Back to the glossary.