Plasma and Fusion Research

Volume 6, 2403143 (2011)

Regular Articles

Study of Radial Diffusion of Energetic Ions by High-m Magnetic Perturbations Using DCOM Code
Satohiro IZUMI and Sadayoshi MURAKAMI
Kyoto University, Kyoto 606-8501, Japan
(Received 19 January 2011 / Accepted 19 September 2011 / Published 11 November 2011)

Abstract

The radial diffusion of energetic ions is studied in the presence of high-m magnetic perturbation using DCOM code. Diffusion coefficients, D, are evaluated varying ion energy and strength of magnetic perturbation. The diffusion coefficient dependency of the magnetic perturbation strength is determined to be influenced by the ion energy. In addition, the ion energy dependence of D shows that D ∝ E1/2 in lower energy (∼10 keV) and D ∝ E3/2 in higher energy (>10 keV) states.

Keywords

energetic ion, microscopic electromagnetic perturbation, anomalous diffusion, DCOM code

DOI: 10.1585/pfr.6.2403143

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This paper may be cited as follows:

Satohiro IZUMI and Sadayoshi MURAKAMI, Plasma Fusion Res. 6, 2403143 (2011).