26 research outputs found

    Onset and saturation of ion heating by odd-parity rotating-magnetic-fields in a field-reversed configuration

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    Heating of figure-8 ions by odd-parity rotating magnetic fields (RMFoRMF_o) applied to an elongated field-reversed configuration (FRC) is investigated. The largest energy gain occurs at resonances (s≡ωR/ωs \equiv \omega_R/ \omega) of the RMFoRMF_o frequency, ωR\omega_R, with the figure-8 orbital frequency, ω\omega, and is proportional to s2s^2 for s−evens-even resonances and to ss for s−odds-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.Comment: 4 page, 3 figure

    Cylindrical plasma equilibria maintained by means of a rotating magnetic field

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    A high-power RF line generator of novel design

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