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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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, 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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