System and method for generating steady state confining current for a toroidal plasma fusion reactor,申请号US19780935222-传众专利搜索

System and method for generating steady state confining current for a toroidal plasma fusion reactor

申请公布号：US4292124(A)

申请号：US19780935222

申请日期：1978.08.21

申请公布日期：1981.09.29

申请人：

MASSACHUSETTS INSTITUTE OF TECHNOLOGY

发明人：FISCH, NATHANIEL J.

分类号：H05H1/12;H05H1/18;(IPC1-7):G21B1/00

主分类号：H05H1/12

摘要：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 establish 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 in the plasma.