Nonlinear splitting of fast particle driven waves in a plasma: Observation and theory

被引：91

作者：

Fasoli, A ^{[1
]}

Breizman, BN

Borba, D

Heeter, RF

Pekker, MS

Sharapov, SE

机构：

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

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

[3] Univ Texas, Inst Fus Studies, Austin, TX 78712 USA

[4] Inst Super Tecn, EURATOM, P-1096 Lisbon, Portugal

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

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.81.5564

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The measured spectra of fast particle driven Alfven eigenmodes in the JET tokamak plasma are interpreted on the basis of a nonlinear model of near-threshold kinetic instabilities. The observed mode splitting is a manifestation of the general nonlinear phenomena due to the combination of resonant wave-particle interaction and collisionlike relaxation of the resonant particles. The instability growth rate and the effective collision frequency of the resonant particles are determined.

引用

页码：5564 / 5567

页数：4

共 13 条

[1]

Berk HL, 1997, PLASMA PHYS REP, V23, P778

[2] HIGH-N IDEAL AND RESISTIVE SHEAR ALFVEN WAVES IN TOKAMAKS [J].

CHENG, CZ ;

CHEN, L ;

CHANCE, MS .

ANNALS OF PHYSICS, 1985, 161 (01) :21-47

[3] Evidence for a wave-induced particle pinch in the presence of toroidally asymmetric ICRF waves [J].

Eriksson, LG ;

Mantsinen, M ;

Borba, D ;

Fasoli, A ;

Heeter, R ;

Sharapov, S ;

Start, DFH ;

Carlsson, J ;

Gondhalekar, A ;

Hellsten, T ;

Korotkov, A .

PHYSICAL REVIEW LETTERS, 1998, 81 (06) :1231-1234

[4] Alfven eigenmode experiments in tokamaks and stellarators [J].

Fasoli, A ;

Borba, D ;

Gormezano, C ;

Heeter, R ;

Jaun, A ;

Jacquinot, J ;

Kerner, W ;

King, Q ;

Lister, JB ;

Sharapov, S ;

Start, D ;

Villard, L .

PLASMA PHYSICS AND CONTROLLED FUSION, 1997, 39 :B287-B301

[5] DIRECT MEASUREMENT OF THE DAMPING OF TOROIDICITY-INDUCED ALFVEN EIGENMODES [J].

FASOLI, A ;

BORBA, D ;

BOSIA, G ;

CAMPBELL, DJ ;

DOBBING, JA ;

GORMEZANO, C ;

JACQUINOT, J ;

LAVANCHY, P ;

LISTER, JB ;

MARMILLOD, P ;

MORET, JM ;

SANTAGIUSTINA, A ;

SHARAPOV, S .

PHYSICAL REVIEW LETTERS, 1995, 75 (04) :645-648

[6] AN INVESTIGATION OF BEAM DRIVEN ALFVEN INSTABILITIES IN THE DIII-D TOKAMAK [J].

HEIDBRINK, WW ;

STRAIT, EJ ;

DOYLE, E ;

SAGER, G ;

SNIDER, RT .

NUCLEAR FUSION, 1991, 31 (09) :1635-1648

[7]

KEILHACKER M, 1995, PLASMA PHYS CONTROL, V37, pA3

[8]

KERNER W, 1998, JETP9804

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

KIMURA, H ;

SAIGUSA, M ;

MORIYAMA, S ;

KONDOH, T ;

NEYATANI, Y ;

OZEKI, T ;

NISHITANI, T ;

KUSAMA, Y ;

FUJII, T ;

SATO, M ;

NEMOTO, M ;

TOBITA, K ;

CHENG, CZ .

PHYSICS LETTERS A, 1995, 199 (1-2) :86-92

[10]

ROMANELLI F, IN PRESS ITER PHYSIC, pCH5

← 1 2 →