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Shafranov Shift in Low-Aspect-Ratio Heliotron / Torsatron CHS
http://hdl.handle.net/10655/2907
http://hdl.handle.net/10655/2907267dc96f-606d-4624-aa80-9b86dacf686e
名前 / ファイル | ライセンス | アクション |
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NIFS-110.pdf (938.3 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 | ||||||
言語 | en | |||||
タイトル | Shafranov Shift in Low-Aspect-Ratio Heliotron / Torsatron CHS | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Shafranov shift | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Equilibrium beta Iimit | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | CHS | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | VMEC | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Low aspect ratio | |||||
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 |
Yamada, H.
× Yamada, H.× Ida, K.× Iguchi, H.× Hanatani, K.× Morita, S.× Kaneko, O.× Howe, H. C.× Hirshman, S. P.× Lee, D. K.× Arimoto, H.× Hosokawa, M.× Idei, H.× Kubo, S.× Matsuoka, K.× Nishimura, K.× Okamura, S.× Takeiri, Y.× Takita, Y.× Takahashi, C. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The MHD equilibrium properties of neutral-beam-heated plasmas have been experimentally investigated in the Compact Helical System (CHS), a low-aspect-ratio (A_p ~ 5) heliotron/torsatron. This configuration is characterized by a strong breaking of helical symmetry. The radial profiles measured by various diagnostics have shown significant Shafranov shift due to plasma pressure. The deviation of the magnetic axis from its vacuum position has reached 50% of the minor radius. When the three-dimensional equilibrium code VMEC is used to reconstruct the equilibrium from the experimental data, the result is in good agreement with the experimentally observed Shafranov shift as well as the diamagnetic pressure in plasmas with < beta> leq I .2% and beta_0 leq 3.3%. This beta value corresponds to half of the conventional equilibrium beta Iimit defined by the Shafranov shift reaching a value of half the minor radius. Although tangential neutral beam injection has caused pressure anisotropies p_parall/p_bot leq 3, the description of the equilibrium assuming isotropic pressure is consistent with the experiment. | |||||
書誌情報 |
en : Research Report NIFS-Series 発行日 1991-09-01 |
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報告書番号 | ||||||
NIFS-110 | ||||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0915-633X |