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FS-2

FS-2, a research reactor (subcritical assembly) in Moscow, Russia, with 200 W of thermal power, operated by Jsc "Nikiet". Operating, first critical in 1972.

It is one of the 57 research reactors operating in Russia. It went critical 26 years after the first research reactor in Russia, F-1 (1946). It is one of 20 subcritical assemblies operating worldwide, spread across 13 countries. It has been 54 years since its first criticality.

Country
Russia
City
Moscow
Type
Subcritical assembly
Thermal power
200 W
Operator
Jsc "Nikiet"
Status
Operating
First criticality
1972

Data: IAEA RRDB · updated on Sep 3, 2026

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