Lucens reactor

Lucens reactor
Control room of the Lucens reactor in April 1968
Official nameVersuchsatomkraftwerk Lucens
CountrySwitzerland
LocationLucens, Vaud
Coordinates46°41′34.16″N 6°49′36.81″E / 46.6928222°N 6.8268917°E / 46.6928222; 6.8268917
StatusDecommissioned
Construction began1 April 1962 (1962-04-01)
Commission date10 May 1968 (1968-05-10)
Decommission date3 March 1969 (1969-03-03)
OwnerNationale Gesellschaft zur Förderung der industriellen Atomtechnik
OperatorEnergie Ouest Suisse
Nuclear power station
Reactor typeHWGCR
Reactor supplierThermatom
Cooling sourceCarbon dioxide
Power generation
Units decommissioned1 x 6 MW
Nameplate capacity6 MW
External links
Websitewww.ensi.ch/fr/themes/centrale-nucleaire-lucens
CommonsRelated 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.