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Norway Norway · Kjeller · 59.983, 11.033 (approximate location)

NORA

NORA, a research reactor (critical assembly) in Kjeller, Norway, with 50 W of thermal power, operated by Institute for Nuclear Energy (IFA). Decommissioned, first critical in 1961.

It was one of the 4 research reactors Norway has had; 0 remain in operation today. It went critical 10 years after the first research reactor in Norway, JEEP I (1951). 44 critical assemblies remain in operation today across 12 countries.

Country
Norway
City
Kjeller
Type
Critical assembly
Thermal power
50 W
Operator
Institute for Nuclear Energy (IFA)
Status
Decommissioned
First criticality
1961

Data: IAEA RRDB · updated on Sep 3, 2026

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