Complete suppression of neoclassical tearing modes with current drive at the electron-cyclotron-resonance frequency in ASDEX upgrade tokamak

被引：249

作者：

Gantenbein, G

Zohm, H

Giruzzi, G

Günter, S

Leuterer, F

Maraschek, M

Meskat, J

Yu, Q

机构：

[1] Univ Stuttgart, Inst Plasmaforsch, D-70569 Stuttgart, Germany

[2] CEA Cadarache, EURATOM Assoc, F-13108 St Paul Durance, France

[3] Max Planck Inst Plasma Phys, EURATOM Assoc, D-85748 Garching, Germany

[4] Acad Sinica, Inst Plasma Phys, Hefei 230031, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.85.1242

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Noninductive current drive has been performed in the tokamak ASDEX upgrade by injection of radiofrequency waves at the second harmonic of the electron-cyclotron frequency in order to suppress unwanted disturbances of the magnetic-field configuration. The current has been driven parallel [co-electron cyclotron current drive (ECCD)] and antiparallel (counter-ECCD) to the plasma current to compare the effect of heating with direct current drive in the magnetic island. For the first time it has been shown experimentally that total stabilization of neoclassical tearing modes is possible with co-ECCD. The experiments verify the role of direct current drive as opposed to local heating.

引用

页码：1242 / 1245

页数：4

共 14 条

[1] OBSERVATION OF NONLINEAR NEOCLASSICAL PRESSURE-GRADIENT-DRIVEN TEARING MODES IN TFTR [J].

CHANG, Z ;

CALLEN, JD ;

FREDRICKSON, ED ;

BUDNY, RV ;

HEGNA, CC ;

MCGUIRE, KM ;

ZARNSTORFF, MC .

PHYSICAL REVIEW LETTERS, 1995, 74 (23) :4663-4666

[2] HELICAL TEMPERATURE PERTURBATIONS ASSOCIATED WITH TEARING MODES IN TOKAMAK PLASMAS [J].

FITZPATRICK, R .

PHYSICS OF PLASMAS, 1995, 2 (03) :825-838

[3] On the stabilization of neoclassical magnetohydrodynamic tearing modes using localized current drive or heating [J].

Hegna, CC ;

Callen, JD .

PHYSICS OF PLASMAS, 1997, 4 (08) :2940-2946

[4] AVOIDANCE OF QA=3 DISRUPTION BY ELECTRON-CYCLOTRON HEATING IN THE JFT-2M TOKAMAK [J].

HOSHINO, K ;

MORI, M ;

YAMAMOTO, T ;

TAMAI, H ;

SHOJI, T ;

MIURA, Y ;

AIKAWA, H ;

KASAI, S ;

KAWAKAMI, T ;

KAWASHIMA, H ;

MAENO, M ;

MATSUDA, T ;

OASA, K ;

ODAJIMA, K ;

OGAWA, H ;

OGAWA, T ;

SEIKE, T ;

SHIINA, T ;

UEHARA, K ;

YAMAUCHI, T ;

SUZUKI, N ;

MAEDA, H .

PHYSICAL REVIEW LETTERS, 1992, 69 (15) :2208-2211

[5] Closed divertor operation in ASDEX Upgrade and JET [J].

Kallenbach, A ;

Coster, D ;

Fuchs, JC ;

Guo, HY ;

Haas, G ;

Herrmann, A ;

Horton, LD ;

Ingesson, LC ;

Maggi, CF ;

Matthews, GF ;

Monk, RD ;

Neuhauser, J ;

Ryter, F ;

Schweinzer, J ;

Stober, J ;

Suttrop, W .

PLASMA PHYSICS AND CONTROLLED FUSION, 1999, 41 :B177-B189

[6] The m=2, n=1 mode suppression by ECRH on the T-10 tokamak [J].

Kislov, DA ;

Alikaev, VV ;

Esipchuk, YV ;

Kakurin, AM ;

Kislov, AY ;

Martynov, DA ;

Notkin, GE ;

Razumova, KA ;

Sushkov, AV ;

Volkov, VV .

NUCLEAR FUSION, 1997, 37 (03) :339-350

[7]

KRITZ AH, 1987, P 3 INT S HEAT TOR P, V2, P707

[8]

MESKAT JP, 1999, P 26 EUR PHYS SOC C

[9] Beta limits in long-pulse tokamak discharges [J].

Sauter, O ;

LaHaye, RJ ;

Chang, Z ;

Gates, DA ;

Kamada, Y ;

Zohm, H ;

Bondeson, A ;

Boucher, D ;

Callen, JD ;

Chu, MS ;

Gianakon, TA ;

Gruber, O ;

Harvey, RW ;

Hegna, CC ;

Lao, LL ;

Monticello, DA ;

Perkins, F ;

Pletzer, A ;

Reiman, AH ;

Rosenbluth, M ;

Strait, EJ ;

Taylor, TS ;

Turnbull, AD ;

Waelbroeck, F ;

Wesley, JC ;

Wilson, HR ;

Yoshino, R .

PHYSICS OF PLASMAS, 1997, 4 (05) :1654-1664

[10] Modeling of the stabilization of neoclassical tearing modes by localized radio frequency current drive [J].

Yu, Q ;

Günter, S ;

Giruzzi, G ;

Lackner, K ;

Zabiego, M .

PHYSICS OF PLASMAS, 2000, 7 (01) :312-322

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