Nereide
Nereide, a research reactor (pool) in Fontenay-aux-Roses, France, with 500 kW of thermal power, operated by CEA Fontenay-aux-Roses. Decommissioned, first critical in 1960.
It was one of the 38 research reactors France has had; 2 remain in operation today. It went critical 12 years after the first research reactor in France, ZOE (EL-1) (1948). 48 pool-type reactors remain in operation today across 28 countries.
- Country
- France
- City
- Fontenay-aux-Roses
- Type
- Pool
- Thermal power
- 500 kW
- Operator
- CEA Fontenay-aux-Roses
- Status
- Decommissioned
- First criticality
- 1960
See also: every research reactor in France · How research reactors work
Data: IAEA RRDB · updated on Sep 3, 2026