1999年11月
Ideal and resistive interchange instabilities in negative shear tokamaks and currentless heliotron plasmas
NUCLEAR FUSION
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- ,
- ,
- 巻
- 39
- 号
- 11Y
- 開始ページ
- 2077
- 終了ページ
- 2081
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1088/0029-5515/39/11Y/356
- 出版者・発行元
- IOP PUBLISHING LTD
For tokamaks the ideal localized interchange mode does not play a role for cases of q (safety factor) > 1 over the whole plasma region, whereas in heliotron plasmas the mode becomes unstable in the edge region owing to the magnetic hill. However, for negative shear tokamaks, the resistive localized interchange mode becomes unstable where go is much larger than q(min), where go (q(min)) is the central (minimum) q value. With the appropriate ellipticity and triangularity the stability against the resistive interchange mode is significantly improved. It is also shown that ideal and resistive non resonant global interchange modes appear easily in the central region of heliotrons and in negative shear tokamaks; the modes are similar to the infernal mode in low shear tokamaks.
- リンク情報
- ID情報
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- DOI : 10.1088/0029-5515/39/11Y/356
- ISSN : 0029-5515
- eISSN : 1741-4326
- J-Global ID : 200902114750699933
- Web of Science ID : WOS:000084546200057