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S111

S111, a research reactor (critical assembly) in Moscow, Russia, operated by GP Krasnaya Zvezda "Red Star". Decommissioned.

It was one of the 123 research reactors Russia has had; 57 remain in operation today. 44 critical assemblies remain in operation today across 12 countries.

Country
Russia
City
Moscow
Type
Critical assembly
Thermal power
critical
Operator
GP Krasnaya Zvezda "Red Star"
Status
Decommissioned
First criticality

Data: IAEA RRDB · updated on Sep 3, 2026

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