slightly-enriched uranium

English

Noun

slightly-enriched uranium (uncountable)

  1. (nuclear physics) Enriched uranium with 0.9-2% uranium-235, requiring a special moderator with very low neutron absorption (such as heavy water or high-purity graphite) in order to sustain a nuclear fission chain reaction; used to increase power output and efficiency in a few types of nuclear reactors capable of running on natural uranium and for downblending of highly-enriched uranium from decommissioned nuclear weapons into low-enriched uranium suitable for use in commercial power reactors.

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