Energy Encyclopedia

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Poloidal field

Fusion

Magnetic field the short way around a torus.

The poloidal field points the short way around a tokamak cross-section. Combined with the toroidal field it produces helical field lines.

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Material for Magnetic Coils

The word "tokamak" is of Russian origin and means "toroidal chamber and magnetic coils." This magnetic confinement system holds plasma in magnetic fields of toroidal shape. The first tokamak, the T-1, started operation in 1958 in Russia, and since then the greatest advances in th

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Glossary

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Toroidal field

Magnetic field the long way around a torus.

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Tokamak

Toroidal magnetic fusion device using plasma current.