Induced nuclear reactions: processes – systems – and elements – Nuclear fusion – Magnetic confinement of plasma
Patent
1981-12-14
1985-09-24
Cangialosi, Sal
Induced nuclear reactions: processes, systems, and elements
Nuclear fusion
Magnetic confinement of plasma
376121, 376142, G21B 100
Patent
active
045432317
ABSTRACT:
A multipole plasma pinch method and apparatus produces hot magnetically confined z-pinch plasma with a plurality of z-pinch current channels arranged so as to generate a multipolar magnetic field and at least one hyperbolic magnetic axis within the plasma space roughly enclosed by the channels, forming thereby a region of average magnetic well in a region of nested closed plasma magnetic surfaces surrounding the plasma current channels, when the magnetic field component in the direction of the hyperbolic axis is also made to be substantially zero in the vicinity of the hyperbolic axis. The multipole pinch invention may be operated so that q and field reversal take place within the plasma, and the plasma so produced closely approximates known theoretical stability conditions. The well-producing hyperbolic axis of the present invention is produced effectively by replacing the solid conducting rings of prior art multipole plasma confinement devices by z-pinch-like toroidal current channel loops of plasma. The plasma is formed inside a vacuum chamber and an electrically conducting shaping shell assembly, whose noncircular poloidal cross section imparts the desired shape to the plasma. The shape of the plasma may be maintained and/or adjusted by means of electrical currents driven through appropriately distributed external conductors.
REFERENCES:
patent: 3677890 (1972-07-01), Hartman
patent: 4065350 (1977-12-01), Sheffield
patent: 4264413 (1981-04-01), Ohkawa
patent: 4274919 (1981-06-01), Jensen et al.
patent: 4330864 (1982-05-01), Ohyabu
R. K. Fisher et al., "Studies of Doublet Plasmas in Doublet IIA," Phys. Rev. Letters, vol. 39, No. 10, pp. 622-625, Sep. 5, 1977.
T. Ohkawa, "Multipole Configurations with Plasma Current", General Atomic Report GA-8528, Feb. 15, 1968.
Project Staff, General Atomic Company, "Doublet III Construction and Engineering Test", and Doublet III Experiment, Magnetic Fusion Energy Program Summary Progress Report, Fusion Division, Oct. 1, 1977-Sep. 30, 1978, General Atomic Report, GA-A15232, pp. 2-1 to 3-119, Apr. 1979.
M. Azumi, et al., "Plasma Confinement in Toroidal Ringless Quadrupole", Physics Letters, vol. 42A, No. 1, Nov. 6, 1972, pp. 81-82.
T. E. James, et al., "Some Design Aspects of a Large Reverse Field Pinch Experiment", Proceedings of the Sixth Symposium on Engineering Problems of Fusion Research, San Diego, Nov. 18-21, 1975, IEEE, Publication No. 75CH1097-5-NPS, pp. 383-386.
J. L. Johnson and J. M. Greene, "Resistive Interchanges and the Negative V Criterion", Plasma Physics, vol. 9, pp. 611-629, Pergamon Press 1967.
H. P. Furth, "Minimum-Average-B Stabilization for Toruses", Advances in Plasma Physics, Simon and Thompson, eds., vol. 1, pp. 67-100, Interscience Publishers 1968.
J. B. Taylor, "Relaxation of Toroidal Plasma and Generation of Reverse Magnetic Fields", Physical Review Letters, vol. 33, No. 19, pp. 1139-1141, Nov. 4, 1974.
H. A. B. Bodin and A. A. Newton, "Reversed-Field-Pinch Research," Nuclear Fusion, vol. 20, No. 10, pp. 1255-1323, 1980.
Cangialosi Sal
GA Technologies Inc.
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