Induced nuclear reactions: processes – systems – and elements – Nuclear fusion – Magnetic confinement of plasma
Patent
1981-02-09
1983-12-27
Cangialosi, Sal
Induced nuclear reactions: processes, systems, and elements
Nuclear fusion
Magnetic confinement of plasma
376132, G21B 100
Patent
active
044230010
ABSTRACT:
A system for the generation of toroidal current in a plasma which is prepared in a toroidal magnetic field. The system utilizes the injection of low-frequency waves into the plasma by means of phased antenna arrays or phased waveguide arrays. The plasma is prepared with a minority ion species of different charge state and different gyrofrequency from the majority ion species. The wave frequency and wave phasing are chosen such that the wave energy is absorbed preferentially by minority species ions traveling in one toroidal direction. The absorption of energy in this manner produces a toroidal electric current even when the injected waves themselves do not have substantial toroidal momentum. This current can be continuously maintained at modest cost in power and may be used to confine the plasma. The system can operate efficiently on fusion grade tokamak plasmas.
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Cangialosi Sal
The United States of America as represented by the United States
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