Patent
1978-08-21
1981-09-29
Cangialosi, S. A.
G21B 100
Patent
active
042921252
ABSTRACT:
A system for generating steady state confining current for a toroidal plasma fusion reactor providing steady-state generation of the thermonuclear power. A dense, hot toroidal plasma is initially prepared with a confining magnetic field with toroidal and poloidal components. Continuous wave RF energy is injected into said plasma to estalish a spectrum of traveling waves in the plasma, where the traveling waves have momentum components substantially either all parallel, or all anti-parallel to the confining magnetic field. The injected RF energy is phased to couple to said traveling waves with both a phase velocity component and a wave momentum component in the direction of the plasma traveling wave components. The injected RF energy has a predetermined spectrum selected so that said traveling waves couple to plasma electrons having velocities in a predetermined range .DELTA.. The velocities in the range are substantially greater than the thermal electron velocity of the plasma. In addition, the range is sufficiently broad to produce a raised plateau having width .DELTA. in the plasma electron velocity distribution so that the plateau electrons provide steady-state current to generate a poloidal magnetic field component sufficient for confining the plasma. In steady state operation of the fusion reactor, the fusion power density in the plasma exceeds the power dissipated inthe plasma.
REFERENCES:
Physics Today (5/79) pp. 25-32, Murakami et al.
Czech. J. Phys. B. 26, pp. 638-645 (1976), Klima.
Plasma Phys. vol. 15, p. 1031-1038 (1973), Klima.
Plasma Physics, vol. 17, p. 463 14 471 (1975), Klima et al.
Cangialosi S. A.
Lappin Mark G.
Massachusetts Institute of Technology
Smith, Jr. Arthur A.
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