Evidence for a wave-induced particle pinch in the presence of toroidally asymmetric ICRF waves

被引：102

作者：

Eriksson, LG ^{[1
]}

Mantsinen, M ^{[1
]}

Borba, D ^{[1
]}

Fasoli, A ^{[1
]}

Heeter, R ^{[1
]}

Sharapov, S ^{[1
]}

Start, DFH ^{[1
]}

Carlsson, J ^{[1
]}

Gondhalekar, A ^{[1
]}

Hellsten, T ^{[1
]}

Korotkov, A ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.81.1231

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The first experimental observation of a radio frequency (rf) wave-induced particle pinch of trapped ions has been made in experiments at the Joint European Torus with nearly on-axis high power toroidally asymmetric ICRF (ion cyclotron range of frequencies) heating. Significant differences have been detected in discharges when waves have been directed in opposite toroidal directions. In particular, fast-ion-driven Alfven eigenmode activity, sawtooth behavior, and proton distribution functions have been found to be strongly affected. The analysis of the discharges shows that the observed differences are consistent with an ICRF-induced particle pinch predicted by theory. [S0031-9007(98)06753-2].

引用

页码：1231 / 1234

页数：4

共 22 条

[1] Alfven eigenmode induced energetic particle transport in JET [J].

Appel, LC ;

Berk, HL ;

Borba, D ;

Breizman, BN ;

Hender, TC ;

Huysmans, GTA ;

Kerner, W ;

Pekker, MS ;

Pinches, SD ;

Sharapov, SE .

NUCLEAR FUSION, 1995, 35 (12) :1697-1705

[2]

BORBA D, 1997, P 5 IAEA TECHN COMM

[3]

CARLSSON J, 1994, P JOINT VAR LAUS WOR, P351

[4] THEORY OF ENERGETIC ION-TRANSPORT INDUCED BY WAVES OF ION-CYCLOTRON RANGE OF FREQUENCIES IN A TOKAMAK PLASMA [J].

CHANG, CS ;

LEE, JY ;

WEITZNER, H .

PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1991, 3 (12) :3429-3447

[5] ION RADIAL TRANSPORT INDUCED BY ICRF WAVES IN TOKAMAKS [J].

CHEN, L ;

VACLAVIK, J ;

HAMMETT, GW .

NUCLEAR FUSION, 1988, 28 (03) :389-398

[6] MONTE-CARLO OPERATORS FOR ORBIT-AVERAGED FOKKER-PLANCK EQUATIONS [J].

ERIKSSON, LG ;

HELANDER, P .

PHYSICS OF PLASMAS, 1994, 1 (02) :308-314

[7] COMPARISON OF TIME-DEPENDENT SIMULATIONS WITH EXPERIMENTS IN ION-CYCLOTRON HEATED PLASMAS [J].

ERIKSSON, LG ;

HELLSTEN, T ;

WILLEN, U .

NUCLEAR FUSION, 1993, 33 (07) :1037-1048

[8] 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

[9] RESONANT COUPLING OF ION-CYCLOTRON WAVES TO ENERGETIC HELIUM-IONS [J].

FINKEN, KH ;

KOCH, R ;

EURINGER, H ;

VANWASSENHOVE, G ;

BOEDO, JA ;

GRAY, DS ;

HILLIS, DL ;

HUET, P ;

MANK, G ;

VANEESTER, D ;

VANNIEUWENHOVE, R ;

VANOOST, G ;

TAMMEN, HF .

PHYSICAL REVIEW LETTERS, 1994, 73 (03) :436-439

[10] CURRENT GENERATION BY MINORITY-SPECIES HEATING [J].

FISCH, NJ .

NUCLEAR FUSION, 1981, 21 (01) :15-22

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