Nuclear Reactors at Dounreay
Prototype Fast Reactor (PFR) operated from 1975 to 1994.
Dounreay Fast Reactor (DFR) operated from 1962 to 1977. This is the familiar golf ball.
Dounreay Materials Test Reactor (DMTR) operated from 1965 to 1968.
PWR 1 Prototype of reactor used on Polaris submarines. In the military site at HMS Vulcan in Dounreay. Shut down.
PWR 2 Prototype of reactor used on Trident submarines. In the military site. The reactor is being refuelled 1997-98. This is not being closed down. It is used for research to modify the reactors and fuel rods on Trident submarines.