India’s Prototype Fast Breeder Reactor (PFBR) Achieves Criticality at Kalpakkam
PFBR Criticality: A Giant Leap for India's Nuclear Independence
In a historic achievement for India's energy security, the Prototype Fast Breeder Reactor (PFBR) at Kalpakkam, Tamil Nadu, has officially achieved criticality. This means the reactor has successfully initiated a self-sustaining nuclear fission chain reaction, moving India closer to large-scale nuclear power generation using indigenous resources.
Technical Specifications
- Capacity: The PFBR is a 500-megawatt electric (MWe) unit.
- Coolant: It is a sodium-cooled fast reactor, which is technologically more complex than traditional water-cooled reactors.
- Fuel: It uses a Mixed Oxide (MOX) fuel containing plutonium and uranium.
- Operator: The project is operated by Bharatiya Nabhikiya Vidyut Nigam Limited (BHAVINI) at the Indira Gandhi Centre for Atomic Research (IGCAR).
The Second Stage of India’s Nuclear Vision
India follows a unique three-stage nuclear power programme envisioned by Dr. Homi J. Bhabha. The PFBR represents the second stage. Unlike the first stage (Pressurized Heavy Water Reactors), these 'breeder' reactors produce more fissile fuel (Plutonium-239) than they consume by converting fertile Uranium-238. This stage is crucial for the future transition to the third stage, which will utilize India's massive thorium reserves.
For TNPSC and Science aspirants, this is one of the most important developments in Indian science, marking India's position as a world leader in fast reactor technology.
