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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 ∝ E^1/2 in lower energy (∼10 keV) and D ∝ E^3/2 in higher energy (>10 keV) states.

Copyright (c) 2011 The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

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

DOI: 10.1585/pfr.6.2403143

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References

• [1] S. Günter et al., Nucl. Fusion 34, 535 (2007).
• [2] W. W. Heidbrink et al., Phys. Rev. Lett. 103, 175001 (2009).
• [3] T. Hauff et al., Phy. Rev. Lett. 102, 075004 (2009).
• [4] Roscoe B. White, The Theory of TROIDALLY CONFINED PLASMA (Second Edition) (Imperial College Press, 2001).
• [5] A. Wakasa et al., Jpn. J. Appl. Phys. 46, 1157 (2007).
• [6] A. Malucov et al., Contrib. Plasma Phys. 43, 198 (2003).
• [7] A. Malucov et al., Physica A 322, 13 (2003).
• [8] M. Okamoto and N. Nakazima, J. Plasma Fusion Res. 78, 885 (2002).

This paper may be cited as follows:

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