Method and device for realizing stable plasma confinement by pressure of AC magnetic field which can be used for controlled nuclear fusion
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United States of America Patent
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Issued Date -
Nov 26, 2009
app pub date -
May 19, 2009
filing date -
May 20, 2008
priority date (Note) -
Abandoned
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Abstract
The invention relates to method and devices for producing stable hot plasma. In particular, the invention can be applied for realizing stable plasma in a thermonuclear reactor to provide energy source for power generation. In the method plasma is confined by pressure of AC magnetic field concentrated in a layer between plasma surface and surrounding conducting shell in which stabilizing feedback on the confined plasma is created by achieving conservation of the AC magnetic flux amplitude. The device for realization of the proposed method comprises a toroidal conducting shell filled with plasma, with AC voltages applied to insulated cuts in the shell made in poloidal and toroidal directions such that said AC magnetic field is created by AC currents in the shell and image currents on the plasma surface. The amplitudes and relative phases of said voltages are rather arbitrary, in particular they can be selected such that the resultant magnetic vector rotates in the plane tangential to the plasma surface with nearly circular polarization exerting nearly time independent magnetic pressure on the plasma.
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