Plasma and Fusion Research

Volume 14, 2403022 (2019)

Regular Articles


Hybrid Simulation of a High-Beta Linear Plasma Column Applied with a Low Frequency Wave
Takahiro URANO, Toshiki TAKAHASHI, Akiyoshi HOSOZAWA1), Tomohiko ASAI1) and Shigefumi OKADA2)
Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan
1)
College of Science and Technology, Nihon University, Tokyo 101-8308, Japan
2)
Osaka University, Suita 565-0871, Japan
(Received 25 September 2018 / Accepted 13 December 2018 / Published 24 January 2019)

Abstract

Wave excitation and propagation by applying a low frequency wave to a high-beta plasma are simulated by a 3-dimensional hybrid model, where ions are treated as particles while electrons are regarded as fluids. It is found that excitation of the toroidal magnetic field occurs outside the separatrix and the wave attenuated significantly near the separatrix. Although the attenuation due to an ion cyclotron resonance is conceivable, no temperature rise in the resonance region is observed. The attenuation condition is given here on the basis of a linear theory, and it shows a good agreement with hybrid simulation results in terms of the attenuation position.


Keywords

high-beta, field-reversed configuration, hybrid simulation, low frequency wave, wave propagation

DOI: 10.1585/pfr.14.2403022


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