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Characteristics of magnetic island formation due to resistive interchange instability in helical plasma
| Title: | Characteristics of magnetic island formation due to resistive interchange instability in helical plasma |
| Authors: | Ueda, R. Browse this author | | Watanabe, K. Y. Browse this author | | Matsumoto, Y. Browse this author | | Itagaki, M. Browse this author →KAKEN DB | | Sato, M. Browse this author | | Oikawa, S. Browse this author →KAKEN DB |
| Issue Date: | May-2014 |
| Publisher: | AIP Publishing |
| Journal Title: | Physics of Plasmas |
| Volume: | 21 |
| Issue: | 5 |
| Start Page: | 052502-1 |
| End Page: | 052502-8 |
| Publisher DOI: | 10.1063/1.4875340 |
| Abstract: | Focusing attention on the magnetic island formation, we investigate the characteristics of the resistive interchange magnetohydrodynamics instabilities, which would limit a high beta operational regime in helical type fusion reactors. An introduction of a new index, i.e., the ratio of the magnetic fluctuation level to the radial displacement, enables us to make a systematic analysis on the magnetic island formation in the large helical device-like plasmas during the linear growth phase; (i) the interchange instability with the second largest growth rate makes the magnetic island larger than that with the largest growth rate when the amplitude of the radial displacement in both cases is almost the same as each other; (ii) applied to a typical tearing instability, the index is smaller than that for the interchange instability with the second largest growth rate. |
| Rights: | Copyright 2014 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Physics of Plasmas vol.21 and may be found at http://dx.doi.org/10.1063/1.4875340 |
| Type: | article |
| URI: | http://hdl.handle.net/2115/57111 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 及川 俊一
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