The method for accelerating ions and electrons in the field-reversed configuration using odd-parity rotating magnetic fields (RMFs) in the ion-cyclotron range-of-frequencies (ICRF) is studied. The approach is based on long, accurate numerical integration of Hamilton’s equations for single-particle orbits. Rapid ion heating to thermonuclear conditions occurs in <0.1 ms in a modest-sized FRC. Strong variation of the magnetic-field strength over the confinement region prevents a true cyclotron resonance, resulting in stochastic though effective heating. Lyapunov exponents are computed to demonstrate chaotic orbits. Electrons are also effectively heated in this frequency range, primarily by a mechanism involving trapping in the wells of the azimuthal electric field. Odd-parity RMF promotes oppositely directed ion and electron motion near the minor axis, appropriate for supporting the plasma current.
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May 2002
Review,Tutorial and Invited Papers from the 43rd Annual Meeting of the APS Division of Plasma Physics
29 Oct-2 Nov 2001
Long Beach, California (USA)
Research Article|
April 23 2002
Ion and electron acceleration in the field-reversed configuration with an odd-parity rotating magnetic field
A. H. Glasser;
A. H. Glasser
Mail Stop K717, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545
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S. A. Cohen
S. A. Cohen
Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, New Jersey 08543
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Phys. Plasmas 9, 2093–2102 (2002)
Article history
Received:
November 01 2001
Accepted:
January 18 2002
Citation
A. H. Glasser, S. A. Cohen; Ion and electron acceleration in the field-reversed configuration with an odd-parity rotating magnetic field. Phys. Plasmas 1 May 2002; 9 (5): 2093–2102. https://doi.org/10.1063/1.1459456
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