WEKO3
アイテム
Dynamics of ion internal transport barrier in LHD heliotron and JT-60U tokamak plasmas
http://hdl.handle.net/10655/3127
http://hdl.handle.net/10655/31270f9fb954-5df9-4516-a1c0-39e6aae0d9a4
名前 / ファイル | ライセンス | アクション |
---|---|---|
NIFS-892.pdf (1.2 MB)
|
|
Item type | 研究報告書 / Research Paper(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2010-02-05 | |||||
タイトル | ||||||
タイトル | Dynamics of ion internal transport barrier in LHD heliotron and JT-60U tokamak plasmas | |||||
言語 | en | |||||
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 | |||||
著者 |
Ida, K.
× Ida, K.× Sakamoto, Y.× Yoshinuma, M.× Takenaga, H.× Nagaoka, K.× Oyama, N.× Osakabe, M.× Yokoyama, M.× Funaba, H.× Tamura, N.× Tanaka, K.× Takeiri, Y.× Ikeda, K.× Tsumori, K.× Oka, Y.× Kaneko, O.× Itoh, K.× Inagaki, S.× Kobuchi, T.× Isayama, A.× Suzuki, T.× Fujita, T.× Matsunaga, G.× Shinohara, K.× Koide, Y.× Yoshida, M.× Ide, S.× Kamada, Y.× LHD, experimental group× the, JT-60 team |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Dynamics of ion internal transport barrier (ITB) formation and impurity transport both in the Large Helical Device (LHD) heliotron and JT-60U tokamak are described. Significant differences between heliotron and tokamak plasmas are observed. The location of the ITB moves outward during the ITB formation regardless of the sign of magnetic shear in JT-60U and the ITB becomes more localized in the plasma with negative magnetic shear. In LHD, the low T_e/T_i ratio ( < 1) of the target plasma for the high power heating is found to be necessary condition to achieve the ITB plasma and the ITB location tends to expand outward or inward depending on the condition of the target plasmas. Associated with the formation of ITB, the carbon density tends to be peaked due to inward convection in JT-60U, while the carbon density becomes hollow due to outward convection in LHD. The outward convection observed in LHD contradicts the prediction by neoclassical theory. | |||||
書誌情報 |
en : Research Report NIFS-Series 発行日 2008-10-01 |
|||||
報告書番号 | ||||||
値 | NIFS-892 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0915-633X |