Tokamak

Magnetic confinement device used to produce thermonuclear fusion power

A tokamak (Russian: токамáк) is a machine which uses a powerful magnetic field generated by external magnets to confine plasma in the shape of an axially-symmetric torus. The tokamak is the leading candidate of magnetic confinement fusion designs being developed to produce controlled thermonuclear fusion power. Tokamaks use a combination of a central solenoid and toroidal and poloidal magnets to shape a ring of plasma.

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