United States · Magnetic confinement (tokamak)
Tokamak Fusion Test Reactor
Operated by Princeton Plasma Physics Laboratory · DOE · First operation 1982
Status: Decommissioned (1997)
The historic Princeton tokamak that first achieved deuterium-tritium fusion in the US and held the fusion power record for years.
TFTR at PPPL was the first US tokamak to use deuterium-tritium fuel, producing 10.7 MW of fusion power in 1994. Decommissioned in 1997, its scientific legacy directly shaped ITER and SPARC designs.
Key specifications
- Major radius
- 2.4 m
- Magnetic field
- 5 T
Milestones
1982
First plasma
1994
10.7 MW DT fusion power — US record
1997
Decommissioned