Plasma Confinement Characteristics in Heliotron J——Spontaneous Change of Plasma Confinement State

作     者：T.Mizuuchi H.Okada K.Nagasaki S.Kobayashi S.Yamamoto F.Sano K.Kondo K.Hanatani M.Nakasuga Y.Nakamura Y.Suzuki Y.Manabe H.Shidara H.Kawazome M.Kaneko Y.Nishioka Y.Ohno T.Takamiya H.Yukimoto Y.Fukagawa Y.Morita S.Nakazawa S.Nishio K.Takahashi S.Tuboi M.Yamada K.Ohashi Y.Ijiri T.Senju K.Yaguchi K.Sakamoto K.Tohshi M.Shibano T.Obiki 

作者机构：Institute of Advanced EnergyKyoto UniversityUji 611-0011Japan Graduate School of Energy ScienceKyoto UniversityUji 611-0011Japan 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术(英文版))

年 卷 期：2004年第6卷第4期

页      面：2371-2376页

核心收录：

学科分类：07[理学] 070204[理学-等离子体物理] 0702[理学-物理学] 

基　　金：The project partially supported by the Grant-in-Aid for Science Research of MEXT in Japan and by the Collaboration Program of the Laboratory for Complex Energy Processes IAE Kyoto University 

主　　题：heliotron J plasma confinement transition phenomena 

摘      要：Spontaneous transition of the plasma confinement mode was observed in thehelical-axis heliotron device Heliotron J for three different plasma heating schemes, ***-only, NBI-only and the combination of ECH and NBI. The transition seems to occur above a certaincritical density. In addition to the confinement transition, a spontaneous shift of the hittingposition of the divertor plasma flux on the wall was observed. This shift could be related with thechange of the edge field topology caused by non-inductive toroidal currents.