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SF-1

SF-1, a research reactor (critical assembly) in Moscow, Russia, with 100 W of thermal power, operated by Russian Research Centre, Kurchatov Institute. 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). 44 critical assemblies remain in operation today across 12 countries. Its declared uses include teaching and training.

Country
Russia
City
Moscow
Type
Critical assembly
Thermal power
100 W
Operator
Russian Research Centre, Kurchatov Institute
Status
Decommissioned
First criticality
1972
Purpose
Teaching, training

Data: IAEA RRDB · updated on Sep 3, 2026

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