Plasma Physics Reports

, Volume 43, Issue 6, pp 638–647 | Cite as

Excitation of helicons by current antennas

Oscillations and Waves in Plasma
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Abstract

Depending on the angle θ between the wave vector and the magnetic field, helicons are conventionally divided into two branches: proper helicons (H mode), propagating at small θ, and Trivelpiece–Gould waves (TG mode), propagating at large θ. The latter are close to potential waves and have a significant electric component along the external magnetic field. It is believed that it is these waves that provide electron heating in helicon discharges. There is also commonly believed that current antennas, widely used to ignite helicon discharges, excite essentially nonpotential Н modes, which then transform into TG modes due to plasma inhomogeneity. In this work, it is demonstrated that electromagnetic energy can also be efficiently introduced in plasma by means of TG modes.

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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  1. 1.Institute of Applied PhysicsRussian Academy of SciencesNizhny NovgorodRussia
  2. 2.National Research Center “Kurchatov Institute”MoscowRussia

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