In this paper the observation of mode conversion of the m=−1 (right-rotating propagation) fast magnetosonic wave into the slow ion-cyclotron wave via the ion–ion hybrid resonance in a mirror magnetic field is presented. The left-circularly polarized component of the wave magnetic field strongly depends on the minority ion concentration in a helium–hydrogen plasma. The associated ion heating up to 250% of the initial value is in correlation with the enhancement of the left-circularly polarized component of the wave field, showing evidence of ion cyclotron heating due to the mode conversion. The two-dimensional calculation of the wave propagation and mode conversion is performed and compared with the experiment.
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Yasaka et al. (1992) studied this question.
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