Ion Heating in the Field-reversed Configuration (FRC) by Rotating Magnetic Fields (RMF) Near Cyclotron Resonance
Authors: Samuel A. Cohen and Alan H. Glasser
Date of PPPL Report: July 2000
Published in: Phys. Rev. Lett. 85 (December 2000) 5114-5117. (Note: Title changed to "Ion Heating in the Field-reversed Configuration by Rotating Magnetic Fields Near the Ion-cyclotron Resonance" and authors changed to "S.A. Cohen and A.H. Glasser.")
The trajectories of ions confined in a Solov'ev FRC equilibrium magnetic geometry and heated with a small-amplitude, odd-parity rotating magnetic field, have been studied with a Hamiltonian computer code. When the RMF frequency is in the ion-cyclotron range, explosive heating occurs. Higher-energy ions are found to have betatron-type orbits, preferentially localized near the FRC midplane. These results are relevant to a compact magnetic-fusion-reactor design.