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Finland Finland · Helsinki · 60.171, 24.938

SCA

SCA, a research reactor (subcritical assembly) in Helsinki, Finland, operated by VTT Technical Research Centre. Decommissioned, first critical in 1963.

It was one of the 2 research reactors Finland has had; 0 remain in operation today. It went critical 1 year after the first research reactor in Finland, FIR-1 (1962). 20 subcritical assemblies remain in operation today across 13 countries.

Country
Finland
City
Helsinki
Type
Subcritical assembly
Thermal power
critical
Operator
VTT Technical Research Centre
Status
Decommissioned
First criticality
1963

Data: IAEA RRDB · updated on Sep 3, 2026

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