Chaotic regime of Alfven eigenmode wave-particle interaction

被引：52

作者：

Heeter, RF

Fasoli, AF

Sharapov, SE

机构：

[1] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

[2] Jet Joint Undertaking, Princeton, NJ 08543 USA

[3] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA

[4] Jet Joint Undertaking, Abingdon OX14 3EA, Oxon, England

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.85.3177

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The chaotic regime in Alfven eigenmode wave-particle interaction is identified for the first time in the tokamak plasma of the Joint European Torus. The Alfven modes are driven by energetic hydrogen minority ions produced by ion cyclotron resonance heating. The experimental signatures of the chaotic regime include spectral broadening, phase flips, and nonperiodic amplitude variations. These phenomena are found to be consistent with a general nonlinear theory of kinetic instabilities near stability threshold developed by Berk, Breizman, and Pekker.

引用

页码：3177 / 3180

页数：4

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