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Russia Russia · Electrostal · 55.783, 38.467

Stend-3

Stend-3, a research reactor (critical assembly) in Electrostal, Russia, with 2 kW of thermal power, operated by MSZ JSC. Decommissioned, first critical in 1967.

It was one of the 123 research reactors Russia has had; 57 remain in operation today. It went critical 21 years after the first research reactor in Russia, F-1 (1946). 44 critical assemblies remain in operation today across 12 countries.

Country
Russia
City
Electrostal
Type
Critical assembly
Thermal power
2 kW
Operator
MSZ JSC
Status
Decommissioned
First criticality
1967

Data: IAEA RRDB · updated on Sep 3, 2026

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