Control of neoclassical tearing modes by sawtooth control

被引：221

作者：

Sauter, O ^{[1
]}

Westerhof, E

Mayoral, ML

Alper, B

Belo, PA

Buttery, RJ

Gondhalekar, A

Hellsten, T

Hender, TC

Howell, DF

Johnson, T

Lamalle, P

Mantsinen, MJ

Milani, F

Nave, MFF

Nguyen, F

Pecquet, AL

Pinches, SD

Podda, S

Rapp, J

机构：

[1] Ecole Polytech Fed Lausanne, Assoc Euratom Confederat Suisse, Ctr Rech Phys Plasmas, CH-1015 Lausanne, Switzerland

[2] EURATOM, FOM, FOM Rijnhuizen, TEC, NL-3430 BE Nieuwegein, Netherlands

[3] EURATOM, Abingdon, Oxon, England

[4] CEA Cadarache, EURATOM Assoc, DRFC, St Paul Les Durance, France

[5] Inst Super Tecn, Ctr Fusao Nucl, Lisbon, Portugal

[6] Royal Inst Technol, NFR, EURATOM Assoc, Stockholm, Sweden

[7] EFDA JET, Close Support Unit, Abingdon, Oxon, England

[8] Assoc EURATOM Belgian State, TEC, LPP ERM KMS, Brussels, Belgium

[9] Aalto Univ, Assoc EURATOM Tekes, FIN-02150 Espoo, Finland

[10] IPP EURATOM Assoc, Max Planck IPP, Garching, Germany

[11] ENEA Fus, EURATOM Assoc, CRF, Frascati, Italy

[12] TEC, EURATOM Assoc, Inst Plasmaphys, Julich, Germany

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.88.105001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The onset of a neoclassical tearing mode (NTM) depends on the existence of a large enough seed island. It is shown in the Joint European Torus that NTMs can be readily destabilized by long-period sawteeth, such as obtained by sawtooth stabilization from ion-cyclotron heating or current drive. This has important implications for burning plasma scenarios, as alpha particles strongly stabilize the sawteeth. It is also shown that, by adding heating and current drive just outside the inversion radius, sawteeth are destabilized, resulting in shorter sawtooth periods and larger beta values being obtained without NTMs.

引用

页码：4 / 105001

页数：4

共 17 条

[1]

ANGIONI C, IN PRESS PLASMA PHYS

[2]

Belo P.A., 2001, P 28 EPS C CONTR FUS

[3] LOCAL MAGNETIC SHEAR CONTROL IN A TOKAMAK VIA FAST-WAVE MINORITY ION CURRENT DRIVE - THEORY AND EXPERIMENTS IN JET [J].

BHATNAGAR, VP ;

START, DFH ;

JACQUINOT, J ;

CHALAND, F ;

CHERUBINI, A ;

PORCELLI, F .

NUCLEAR FUSION, 1994, 34 (12) :1579-1603

[4] Neoclassical tearing modes [J].

Buttery, RJ ;

Günter, S ;

Giruzzi, G ;

Hender, TC ;

Howell, D ;

Huysmans, G ;

La Haye, RJ ;

Maraschek, M ;

Reimerdes, H ;

Sauter, O ;

Warrick, CD ;

Wilson, HR ;

Zohm, H .

PLASMA PHYSICS AND CONTROLLED FUSION, 2000, 42 :B61-B73

[5]

BUTTERY RJ, 2001, P 28 EPS C CONTR FUS

[6] STABILIZATION OF SAWTEETH WITH ADDITIONAL HEATING IN THE JET TOKAMAK [J].

CAMPBELL, DJ ;

START, DFH ;

WESSON, JA ;

BARTLETT, DV ;

BHATNAGAR, VP ;

BURES, M ;

CORDEY, JG ;

COTTRELL, GA ;

DUPPEREX, PA ;

EDWARDS, AW ;

CHALLIS, CD ;

GORMEZANO, C ;

GOWERS, CW ;

GRANETZ, RS ;

HAMNEN, JH ;

HELLSTEN, T ;

JACQUINOT, J ;

LAZZARO, E ;

LOMAS, PJ ;

CARDOZO, NL ;

MANTICA, P ;

SNIPES, JA ;

STORK, D ;

STOTT, PE ;

THOMAS, PR ;

THOMPSON, E ;

THOMSEN, K ;

TONETTI, G .

PHYSICAL REVIEW LETTERS, 1988, 60 (21) :2148-2151

[7] 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

[8] Increasing the beta limit due to neoclassical tearing modes by raising the axial safety factor q(0) > 1 [J].

La Haye, RJ ;

Rice, BW ;

Strait, EJ .

NUCLEAR FUSION, 2000, 40 (01) :53-58

[9]

MANTSINEN M, 2001, IN PRESS P 28 EPS C

[10]

MAYORAL ML, 2001, IN PRESS P 14 TOP C

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