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Latvia Latvia · Salaspils · 56.867, 24.350 (approximate location)

RKS-25

RKS-25, a research reactor (pool) in Salaspils, Latvia, with 25 W of thermal power, operated by Nuclear Research Centre. Shut down, first critical in 1966.

It was one of the 2 research reactors Latvia has had; 0 remain in operation today. It went critical 5 years after the first research reactor in Latvia, SRR Salaspils Research Reactor (1961). 48 pool-type reactors remain in operation today across 28 countries.

Country
Latvia
City
Salaspils
Type
Pool
Thermal power
25 W
Operator
Nuclear Research Centre
Status
Shut down
First criticality
1966

Data: IAEA RRDB · updated on Sep 3, 2026

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