Elongated toroid fusion device

Induced nuclear reactions: processes – systems – and elements – Nuclear fusion – Magnetic confinement of plasma

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G21B 100

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047342463

ABSTRACT:
A toroidal fusion device with an elongated axial cross section is described which is capable of ignition without auxiliary heating and with modest toroidal magnetic field. The device is based on the principle that for elongated toroids the toroidal current density in the plasma at ignition is subject to a limit which is proportional to the product of the elongation and the toroidal magnetic field. The elongation is made greater than about 4. The aspect ratio is preferably between about 3 and 10.

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