EXCITATION OF HIGH N-TOROIDICITY INDUCED ALFVEN EIGENMODES AND ASSOCIATED PLASMA DYNAMICAL BEHAVIOR IN THE JT-60U ICRF EXPERIMENTS

被引：39

作者：

KIMURA, H ^{[1
]}

SAIGUSA, M ^{[1
]}

MORIYAMA, S ^{[1
]}

KONDOH, T ^{[1
]}

NEYATANI, Y ^{[1
]}

OZEKI, T ^{[1
]}

NISHITANI, T ^{[1
]}

KUSAMA, Y ^{[1
]}

FUJII, T ^{[1
]}

SATO, M ^{[1
]}

NEMOTO, M ^{[1
]}

TOBITA, K ^{[1
]}

CHENG, CZ ^{[1
]}

机构：

[1] PRINCETON UNIV,PRINCETON PLASMA PHYS LAB,PRINCETON,NJ 08543

来源：

PHYSICS LETTERS A | 1995年 / 199卷 / 1-2期

关键词：

D O I：

10.1016/0375-9601(95)00052-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

High frequency MHD activities observed during second harmonic ICRF heating are identified to be toroidicity-induced Alfven eigenmodes (TAE) driven by MeV protons produced by ICRF heating. Correlation between MeV protons and TAE modes is clearly observed. TAE mode amplitude increases exponentially with increasing toroidal mode number up to more than ten. The tendency cannot be explained by present local TAE stability theories. Long suppression of TAE modes after a giant sawtooth crash can be explained by fast ion loss due to the sawtooth crash and evolving q-profile.

引用

页码：86 / 92

页数：7

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