Oklo’s Groves isotope test reactor achieved zero-powered criticality late Wednesday, making it the fifth reactor under a Department of Energy reactor initiative to reach that milestone.
The completed criticality test comes after DOE approved Oklo’s nuclear…
RadWaste & Materials Monitor Vol. 19 No. 31
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RadWaste & Materials Monitor
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August 06, 2026
Oklo’s Groves becomes fifth unit to hit criticality in DOE reactor program
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