[Table of Contents]

Plasma and Fusion Research

Volume 3, S1075 (2008)

Regular Articles

Simulation Study of ICRF Wave Propagation and Absorption in 3-D Magnetic Configurations
Tetsuya YAMAMOTO, Sadayoshi MURAKAMI and Atsushi FUKUYAMA
Department of Nuclear Engineering, Kyoto University, Kyoto 606-8501, Japan
(Received 28 November 2007 / Accepted 19 March 2008 / Published 4 August 2008)

Abstract

Ion cyclotron range of frequency (ICRF) wave propagation and absorption are investigated using TASK/WM, in which Maxwell's equation for an RF wave electric field with a complex frequency is solved as a boundary value problem. The wave propagation is solved in the tokamak (JT-60U) and helical (LHD) configurations in the minority ion heating regime. Magnetic flux coordinates based on the MHD equilibrium in LHD were obtained using the VMEC code. A new model for the radial extension of the magnetic coordinates is applied to improve the numerical error near the plasma-vacuum boundary. The ICRF wave propagation and absorption are clearly seen at the ion cyclotron resonance layer and two-ion-hybrid layers with a high spatial resolution.

Keywords

simulation, ICRF heating, wave propagation, helical configuration

DOI: 10.1585/pfr.3.S1075

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References

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This paper may be cited as follows:

Tetsuya YAMAMOTO, Sadayoshi MURAKAMI and Atsushi FUKUYAMA, Plasma Fusion Res. 3, S1075 (2008).