Lucens reactor
| Lucens reactor | |
|---|---|
| Control room of the Lucens reactor in April 1968 | |
| Official name | Versuchsatomkraftwerk Lucens | 
| Country | Switzerland | 
| Location | Lucens, Vaud | 
| Coordinates | 46°41′34.16″N 6°49′36.81″E / 46.6928222°N 6.8268917°E | 
| Status | Decommissioned | 
| Construction began | 1 April 1962 | 
| Commission date | 10 May 1968 | 
| Decommission date | 3 March 1969 | 
| Owner | Nationale Gesellschaft zur Förderung der industriellen Atomtechnik | 
| Operator | Energie Ouest Suisse | 
| Nuclear power station | |
| Reactor type | HWGCR | 
| Reactor supplier | Thermatom | 
| Cooling source | Carbon dioxide | 
| Power generation | |
| Units decommissioned | 1 x 6 MW | 
| Nameplate capacity | 6 MW | 
| External links | |
| Website | www | 
| Commons | Related media on Commons | 
| Suffered a nuclear accident on 21 January 1969, leading to a partial core meltdown and massive radioactive contamination | |
The Lucens reactor was a 6 MW experimental nuclear power reactor built next to Lucens, Vaud, Switzerland. After its connection to the electrical grid on 29 January 1968, the reactor only operated for a year before it suffered an accident on 21 January 1969. The cause was a corrosion-induced loss of heat dispersal leading to the destruction of a pressure tube which caused an adjacent pressure tube to fail, and partial meltdown of the core, resulting in radioactive contamination of the cavern.