Fast Breeder Test Reactor

The Fast Breeder Test Reactor (FBTR) is a 40 MWt loop type, sodium cooled fast breeder reactor located at Kalpakkam, Tamil Nadu, India, using a mixture of Plutonium Carbide and Uranium Carbide as fuel dedicated to fast reactor research. Indira Gandhi Center for Atomic Research (IGCAR) and Bhabha Atomic Research Centre (BARC) jointly designed, constructed, and operate the reactor.

Source: Wikipedia — Fast Breeder Test Reactor (CC BY-SA 4.0)