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IIN-3M

IIN-3M, a research reactor (fast) in Moscow, Russia, operated by Research and Development Institute of Scientific Instruments. Decommissioned, first critical in 1972.

It was one of the 123 research reactors Russia has had; 57 remain in operation today. It went critical 26 years after the first research reactor in Russia, F-1 (1946). 15 fast research reactors remain in operation today across 6 countries.

Country
Russia
City
Moscow
Type
Fast
Thermal power
critical
Operator
Research and Development Institute of Scientific Instruments
Status
Decommissioned
First criticality
1972

Data: IAEA RRDB · updated on Sep 3, 2026

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