Pressure profile shape constancy in L-mode stellarator plasmas

A. V. Melnikov, L. G. Eliseev, I. Pastor, J. Herranz, C. Hidalgo, A. Fujisawa, T. Minami, K. A. Razumova, Yu N. Dnestrovskij, S. E. Lysenko, J. H. Harris

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

1 被引用数 (Scopus)

抄録

(I) In spite of large vaiety in the profiles of plasma electron temperature and density, theit product, electron pressure presents the feature of profile constancy in stellarator devises in onserved experiments with wide range of the plasma and heating parameters. (II) In the L-mode plasmas of the medium size stellarators, the pressure profiles show remarkable similarities between each other in low (TJ-II, W7-AS) and high (CHS, ATF) magnetic shear configurations. so, the universal profile, characterized by Po-1 dP/dp ∼ const = k, was found for L-mode plasmas and outside the ITB area. The other types of profile like in case of LHD [6] may take place for specific plasma conditions. (III) The obseration of the universal constant k in L-mode (e.g. in the absence of strong ExB effects) may suggests that tubulence and the associated transport reach some kind of saturation level, that does not depend on the absolute values of Te and ne, but alternative explanations (e.g. based on the role of atomic physics and links between magnetic configuration and gradient) can not be excluded. The validation of the transport-based hypothesis would require to characterized the link between local gradients and turbulent transport.

本文言語英語
ホスト出版物のタイトル34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts
ページ941-944
ページ数4
2
出版ステータス出版済み - 2007
外部発表はい
イベント34th European Physical Society Conference on Plasma Physics 2007, EPS 2007 - Warsaw, ポーランド
継続期間: 7月 2 20077月 6 2007

出版物シリーズ

名前34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts
番号2
31

その他

その他34th European Physical Society Conference on Plasma Physics 2007, EPS 2007
国/地域ポーランド
CityWarsaw
Period7/2/077/6/07

!!!All Science Journal Classification (ASJC) codes

  • 原子分子物理学および光学

フィンガープリント

「Pressure profile shape constancy in L-mode stellarator plasmas」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル