Abstract
Heating of figure-8 orbit ions by odd-parity rotating magnetic fields (RMFo) applied to an elongated field-reversed configuration (FRC) is investigated. The largest energy gain occurs at resonances (sωR/ω) of the RMFo frequency, ωR, with the figure-8 orbital frequency, ω, and is proportional to s2 for s-even resonances and to s for s-odd resonances. The threshold for the transition from regular to stochastic orbits explains both the onset and saturation of heating. The FRC magnetic geometry lowers the threshold for heating below that in the tokamak by an order of magnitude.
Original language | English (US) |
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Article number | 015002 |
Journal | Physical review letters |
Volume | 96 |
Issue number | 1 |
DOIs | |
State | Published - Jan 13 2006 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy