Abstract

The equations determining the ion-cyclotron eigenmodes of a uniformly magnetized homogeneous cylindrical multispecies plasma column consisting of a minority hydrogen ion species and a majority deuterium ion species are derived by including small gyroradius corrections up to the first harmonic (ω∼2ωcα). It is shown that the radial wave numbers associated with the resonance at the first harmonic introduce transverse electromagnetic modes (TEM modes) for the transverse components of the wave electromagnetic field, in addition to the transverse electric modes (Bz-mode) and transverse magnetic modes (Ez-mode) of the cylindrical plasma column. For the special case of a hydrogen–deuterium mixture, these TEM modes are characterized by two additional radial wave numbers, each of these resonating selectively with the deuterium and the hydrogen species.

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