Harmonie
Harmonie, a research reactor (tank) in Saint-Paul-lès-Durance, France, with 1 kW of thermal power, operated by CEN Cadarache. Decommissioned, first critical in 1965.
It was one of the 38 research reactors France has had; 2 remain in operation today. It went critical 17 years after the first research reactor in France, ZOE (EL-1) (1948). 36 tank-type reactors remain in operation today across 23 countries. Its declared uses include materials testing.
- Country
- France
- City
- Saint-Paul-lès-Durance
- Type
- Tank
- Thermal power
- 1 kW
- Operator
- CEN Cadarache
- Status
- Decommissioned
- First criticality
- 1965
- Purpose
- Materials testing
See also: every research reactor in France · How research reactors work
Data: IAEA RRDB · updated on Sep 3, 2026