United States: Experts Lambast Use of HEU in TerraPower's Idaho Test Bed

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The US Department of Energy (DOE) is under fire from nonproliferation experts and former government officials over its plans to use weapons-grade highly-enriched uranium (HEU) in a reactor test bed meant to provide data for the commercialization of Terrapower's molten chloride fast reactor, which will use high-assay low-enriched uranium (Haleu). The nonproliferation cohort argued in a May 30 letter that the use of HEU in the test bed to be developed at Idaho National Laboratory — the Molten Chloride Reactor Experiment (MCRE) — contradicts the decades-long US policy of minimizing HEU availability both domestically and abroad.

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