Lucens reactor

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 few months before it suffered a loss-of-coolant accident on 21 January 1969, leading to the meltdown of one of the five fuel elements and radioactive contamination of the cavern.