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Observational analysis determined phase velocities of fast magnetosonic waves in plasma, indicating critical density and magnetic field conditions.
The system of magnetic probes and data acquisition system have been developed and created at the L-2M stellarator for measuring phase velocities of fast magnetosomic (FMS) waves. Using this system of magnetic probes, toroidal and azimuthal wave numbers of FMS waves excited in the L-2M stellarator plasma were determined in the ohmic heating regime at 1-kW-power of radiation introduced into the plasma, plasma densities in the range of (0.5–2.0) × 10 19 m –3 and magnetic fields in the range of 1–1.4 T. The conditions for the density and magnetic field strength under which FMS wave can propagate in one of the toroidal directions in the L-2M stellarator plasma were determined in the ohmic heating regime.
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Meshcheryakov et al. (2025) studied this question.
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