Induced nuclear reactions: processes – systems – and elements – Nuclear fusion – Magnetic confinement of plasma
Patent
1981-03-24
1984-03-13
Behrend, Harvey E.
Induced nuclear reactions: processes, systems, and elements
Nuclear fusion
Magnetic confinement of plasma
376143, 376133, G21B 100
Patent
active
044366914
ABSTRACT:
An inductive method and apparatus for forming detached spheromak plasma using a thin-walled metal toroidal ring, with external current leads and internal poloidal and toroidal field coils located inside a vacuum chamber filled with low density hydrogen gas and an external axial field generating coil. The presence of a current in the poloidal field coils, and an externally generated axial field sets up the initial poloidal field configuration in which the field is strongest toward the major axis of the toroid. The internal toroidal-field-generating coil is then pulsed on, ionizing the gas and inducing poloidal current and toroidal magnetic field into the plasma region in the sleeve exterior to and adjacent to the ring and causing the plasma to expand away from the ring and toward the major axis. Next the current in the poloidal field coils in the ring is reversed. This induces toroidal current into the plasma and causes the poloidal magnetic field lines to reconnect. The reconnection continues until substantially all of the plasma is formed in a separated spheromak configuration held in equilibrium by the initial external field.
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Furth Harold P.
Jardin Stephen C.
Okabayashi Mitcheo
Yamada Masaaki
Behrend Harvey E.
Esposito Michael F.
Mansfield Bruce R.
Rabin Steven M.
The United States of America as represented by the United States
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