Ion cyclotron range of frequencies heating of plasma with small

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

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376132, G21B 100

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active

047103396

ABSTRACT:
Plasma including plasma ions is magnetically confined by a magnetic field. The plasma has a defined outer surface and is intersected by resonance surfaces of respective common ion cyclotron frequency of a predetermined species of plasma ions moving in the magnetic field. A radio frequency source provides radio frequency power at a radio frequency corresponding to the ion cyclotron frequency of the predetermined species of plasma ions moving in the field at a respective said resonance surface. RF launchers coupled to the radio frequency source radiate radio frequency energy at the resonance frequency onto the respective resonance surface within the plasma from a plurality of locations located outside the plasma at such respective distances from the intersections of the respective resonance surface and the defined outer surface and at such relative phases that the resulting interference pattern provides substantially null net radio frequency energy over regions near and including substantial portions of the intersections relative to the radio frequency energy provided thereby at other portions of the respective resonance surface within the plasma.

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Hosea, J., et al., PLT Ion Cyclotron Range of Frequencies Heating Program, paper presented at 4th Joint Varenna-Grenoble International Symposium on Heating in Toroidal Plasmas (Rome, Mar. 1984).
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