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Effect of Externally Applied Resonance Magnetic Perturbation on Current Decay during Tokamak Disruption

Yuki KANAZAWA, Yoshihide SHIBATA, Masaaki OKAMOTO¹⁾, Noriyasu OHNO and Shin KAJITA²⁾

Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan

1)

Ishikawa National College Technology, Kitachujo, Tsubata, Kahoku-gun, Ishikawa 929-0392, Japan

2)

EcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan

(Received 16 February 2012 / Accepted 12 March 2012 / Published 07 June 2012)

Abstract

Disruption is one of the most critical issues in tokamaks. A resonance magnetic perturbation (RMP) coil system will be installed in future tokamaks such as the International Thermonuclear Experimental Reactor to mitigate edge localized modes. In this study, the effect of RMP on tokamak disruption was investigated using the small tokamak device HYBTOK-II. It was found statistically that an externally applied RMP leads to faster current quench during disruption.

Copyright (c) 2012 The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

disruption, current decay, resonance magnetic perturbation, small tokamak device, HYBTOK-II

DOI: 10.1585/pfr.7.1202049

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References

• [1] ITER Physics Basis, Nucl. Fusion 47, chapter 3 (2003).
• [2] T.E. Evans et al, Phys. Rev. Lett. 92, 28 (2004).
• [3] Y. Kikuchi et al, Nucl. Fusion 44, S28 (2004).
• [4] M. Okamoto et al, Nucl. Fusion 47, 1106 (2007).

This paper may be cited as follows:

Yuki KANAZAWA, Yoshihide SHIBATA, Masaaki OKAMOTO, Noriyasu OHNO and Shin KAJITA, Plasma Fusion Res. 7, 1202049 (2012).