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Effects of Net Toroidal Current Profile on Mercier Criterion in Heliotron Plasma
http://hdl.handle.net/10655/3146
http://hdl.handle.net/10655/3146bcf3d2f6-9212-4151-a53d-e9846bb6b99d
| 名前 / ファイル | ライセンス | アクション |
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NIFS-692.pdf (765.6 kB)
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| Item type | 研究報告書 / Research Paper(1) | |||||||||||||||||||||
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| 公開日 | 2010-02-05 | |||||||||||||||||||||
| タイトル | ||||||||||||||||||||||
| タイトル | Effects of Net Toroidal Current Profile on Mercier Criterion in Heliotron Plasma | |||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
| 言語 | ||||||||||||||||||||||
| 言語 | eng | |||||||||||||||||||||
| キーワード | ||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||||||
| 主題 | Heliotron | |||||||||||||||||||||
| キーワード | ||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||||||
| 主題 | Mercier criterion | |||||||||||||||||||||
| キーワード | ||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||||||
| 主題 | net toroidal current | |||||||||||||||||||||
| キーワード | ||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||||||
| 主題 | free boundary equilibrium | |||||||||||||||||||||
| 資源タイプ | ||||||||||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_18ws | |||||||||||||||||||||
| 資源タイプ | research report | |||||||||||||||||||||
| 著者 |
Ichiguchi, K.
× Ichiguchi, K.
× Nishimura, T.
× Nakajima, N.
× Okamoto, M.
× OIKAWA, S.-I.
× ITAGAKI, M.
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| 抄録 | ||||||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||||||
| 内容記述 | The effects of the variation in the net toroidal current on the Mercier criterion are studied in a Heliotron configuration under the free boundary condition. The plasma column and the magnetic axis are shifted horizontally by the net toroidal current because the effective vertical field is changed. The direction of the shift depends on the direction of the current. In the case of the subtractive current which decreases the rotational transform, the equilibrium is more stable than the no net current equilibrium, although the plasma axis is shifted inward by the current itself. This is because the Shafranov shift is superior to the axis shift by the current and the magnetic well is enhanced. In the case of the additive current which increases the rotational transform, there is a tendency that the stability is improved as the peak position of the current density varies from the axis to the peripheral region. This improvement is due to the enhancement of the magnetic shear at low beta and the magnetic well at high beta. When the subtractive current peaked at the axis and the additive hollow current flow simultaneously so that the total current should be zero or slightly additive, the interchange mode can be stabilized even if the corresponding equilibrium with no net current is strongly Mercier unstable. | |||||||||||||||||||||
| 書誌情報 |
en : Research Report NIFS-Series 発行日 2001-04-01 |
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| 報告書番号 | ||||||||||||||||||||||
| NIFS-692 | ||||||||||||||||||||||
| ISSN | ||||||||||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||||||||||
| 収録物識別子 | 0915-633X | |||||||||||||||||||||
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Cite as
Ichiguchi, K., Nishimura, T., Nakajima, N., Okamoto, M., OIKAWA, S.-I., ITAGAKI, M., 2001, Effects of Net Toroidal Current Profile on Mercier Criterion in Heliotron Plasma.
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