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Effect of Bumpy Magnetic Field on Energy Confinement in NBI Plasmas of Heliotron J
http://hdl.handle.net/10655/2628
http://hdl.handle.net/10655/2628874ff0b6-77f5-489c-bb8d-b482813bbfa9
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 | Effect of Bumpy Magnetic Field on Energy Confinement in NBI Plasmas of Heliotron J | |||||
言語 | ||||||
言語 | eng | |||||
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 | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
"Kobayashi, S.
× "Kobayashi, S.× Mizuuchi, T.× Nagasaki, K.× Okada, H.× Kondo, K.× Yamamoto, S.× Murakami, S.× Katayama, D.× Suzuki, Y.× Minami, T.× Nagaoka, K.× Takeiri, Y.× Murai, K.× Nakamura, Y.× Yokoyama, M.× Hanatani, K.× Motojima, G.× Hosaka, K.× Toushi, K.× Sano, F." |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | "The energy confinement in the NBI plasmas has been investigated in the helical-axis heliotron device, Heliotron J. The configuration control experiments for bumpiness ( ε _b), being one of the side-bands of the helical component, show that the plasma performance in NBI plasmas depends on not only the effective helical ripple (ε_eff) but also the bumpiness. The preferable enhancement factor of the experimental energy confinement time to the international stellarator scaling law ISS95 has been obtained in the high- ε_b configuration and in the low-ε_eff (i.e. medium- ε_b ) condition. The improvement in the ion and electron temperature contributes to the enhancement of the plasma performance in the high- ε_b configurations since the fast ion confinement is found to be better in this configuration. The control of bumpiness is effective not only in the energetic particle transport but also in the global energy confinement in NBI plasmas of Heliotron J." | |||||
書誌情報 |
en : Research Report NIFS-Series 発行日 2008-10-01 |
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報告書番号 | ||||||
NIFS-932 | ||||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0915-633X |