tokamak

Magnetic plasma container

A tokamak is a doughnut-shaped device that uses powerful magnetic fields to contain superheated plasma for nuclear fusion research.

The magnetic confinement keeps the plasma—hot enough to fuse atomic nuclei—from touching the chamber walls.

Tokamaks represent the leading approach to achieving controlled fusion as a power source: The experimental tokamak sustained fusion for nearly twenty minutes.

fusion

reactor

Controlled fission apparatus

breakeven · deuterium · tritium · neutron · JET · burn · blanket · heating · inertial

magnetic

toroidal

Doughnut-form geometry

confinement · flux · current · solenoid · magnet · tesla · inductor · winding · helical · topology

geometry

torus

Doughnut-shaped solid

vessel · chamber · vacuum · wall · blanket · port · cryostat · shielding · cross-section · D-shaped

plasma

ionized

Converted to charged particles

disruption · kink · sawtooth · ballooning · tearing · neoclassical · drift · transport · edge · core

energy

electricity

Energy from charged particles

baseload · clean · abundant · inexhaustible · carbon-free · sustainable · commercialization · prototype · engineering · milestone

Opposites
energy technology approach

tokamakfission reactor

Facility splitting atoms for power

nuclear fission · coal plant · solar panel · wind turbine · hydroelectric dam

Familiarity
Top 1,000,000
Profile
Used worldwide · Timeless · Concrete · Rated G