EDGE PLASMA CHARACTERISTICS DURING ICRF HEATING ON JFT-2M TOKAMAK

被引:5
|
作者
TAMAI, H
OGAWA, T
ODAJIMA, K
MATSUMOTO, H
AIKAWA, H
FUJITA, T
HOSHINO, K
KASAI, S
KAWAKAMI, T
KAWASHIMA, H
MATSUDA, T
MIURA, Y
MORI, M
OGAWA, H
OHASA, K
SENGOKU, S
SHOJI, T
SUZUKI, N
UESUGI, Y
YAMAMOTO, T
YAMAUCHI, T
MAEDA, H
机构
[1] Department of Thermonuclear Fusion Research, Japan Atomic Energy Research Institute Tokai-mura, Naka-gun, Ibaraki-ken
关键词
D O I
10.1016/0920-3796(90)90060-J
中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
The roles of the edge plasma are investigated with respect to impurity release, antenna loading, and H-mode transition. Metal impurity release is considered to be caused by an RF electric field near the antennas, and can be reduced by the out-of-phase operation. Antenna loading with H-mode plasmas is dependent on the antenna-separatrix distance, and can be increased for sufficiently small separation. Electron temperature and electron density in the edge are the key parameters for H-mode transition, and they are the same, independent of the additional heating methods, and of the impurity level. © 1990.
引用
收藏
页码:25 / 29
页数:5
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