Perturbation of tokamak magnetic surfaces by applied toroidally asymmetric magnetic fields

被引：27

作者：

Chapman, I. T. ^{[1
]}

Hender, T. C. ^{[1
]}

Howell, D. F. ^{[1
]}

Erents, S. K. ^{[1
]}

Gryaznevich, M. P. ^{[1
]}

Shibaev, S. ^{[1
]}

Stamp, M. F. ^{[1
]}

de la Luna, E. ^{[2
]}

Savchkov, A. ^{[3
]}

Scannell, R. ^{[4
]}

机构：

[1] UKAEA Euratom Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England

[2] CIEMAT, Asociac EURATOM, Lab Nacl Fus, E-28040 Madrid, Spain

[3] Forschungszentrum Julich, EURATOM Assoc FZ Julich, Inst Plasma Phys, D-52425 Julich, Germany

[4] Dublin City Univ, Natl Univ Ireland Univ Coll Cork, EURATOM Assoc, Dept Elect & Elect Engn, Cork, Ireland

来源：

NUCLEAR FUSION | 2007年 / 47卷 / 11期

关键词：

D O I：

10.1088/0029-5515/47/11/L02

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The effects of applied three-dimensional magnetic error fields on magnetic surfaces are measured in both the Joint European Torus (JET) and the Mega Ampere Spherical Tokamak (MAST). Static perturbation fields with various amplitudes have been applied in both devices using non-axisymmetric coils producing a dominantly n = 1 magnetic field to systematically perturb the plasma flux surfaces. The displacement of the plasma boundary is found to increase linearly with the strength of the applied field, and agrees well with predictive modelling which superimposes vacuum non-axisymmetric fields on a 2D equilibrium.

引用

页码：L36 / L40

页数：5

共 13 条

[1] The error field correction coils on the JET machine [J].

Barlow, I ;

Bigi, M ;

Bird, J ;

Bonizzoni, G ;

Buttery, R ;

Clay, R ;

De Benedetti, M ;

Dobbing, T ;

Gallagher, T ;

Gervasini, G ;

Gittini, G ;

Hender, TC ;

Hotchin, S ;

Last, J ;

Lazzaro, E ;

Lennholm, M ;

Peruzzo, S ;

Riccardo, V ;

Rossi, L ;

Santagiustina, A ;

Starkey, D ;

Stevens, A ;

Tabellini, M ;

Tanga, A ;

Terrington, A ;

Vincent, M ;

Watkins, P ;

Way, M ;

Williams, M .

FUSION ENGINEERING AND DESIGN, 2001, 58-59 :189-193

[2] Error field experiments in JET [J].

Buttery, RJ ;

De' Benedetti, M ;

Hender, TC ;

Tubbing, BJD .

NUCLEAR FUSION, 2000, 40 (04) :807-819

[3]

Evans TE, 2005, J NUCL MATER, V337, P691, DOI 10.1016/j.jnucmat.2004.10.062

[4] EFFECT OF A STATIC EXTERNAL MAGNETIC PERTURBATION ON RESISTIVE MODE-STABILITY IN TOKAMAKS [J].

FITZPATRICK, R ;

HENDER, TC .

PHYSICS OF PLASMAS, 1994, 1 (10) :3337-3355

[5] EFFECT OF RESONANT MAGNETIC PERTURBATIONS ON COMPASS-C TOKAMAK DISCHARGES [J].

HENDER, TC ;

FITZPATRICK, R ;

MORRIS, AW ;

CAROLAN, PG ;

DURST, RD ;

EDLINGTON, T ;

FERREIRA, J ;

FIELDING, SJ ;

HAYNES, PS ;

HUGILL, J ;

JENKINS, IJ ;

LAHAYE, RJ ;

PARHAM, BJ ;

ROBINSON, DC ;

TODD, TN ;

VALOVIC, M ;

VAYAKIS, G .

NUCLEAR FUSION, 1992, 32 (12) :2091-2117

[6] Locked mode thresholds on the MAST spherical tokamak [J].

Howell, D. F. ;

Hender, T. C. ;

Cunningham, G. .

NUCLEAR FUSION, 2007, 47 (09) :1336-1340

[7]

HOWELL DF, 2004, B AM PHYS SOC, V46

[8] Dependence of the threshold for perturbation field generated m/n=2/1 tearing modes on the plasma fluid rotation [J].

Koslowski, H. R. ;

Liang, Y. ;

Kraemer-Flecken, A. ;

Loebwenbrueck, K. ;

von Hellermann, M. ;

Westerhof, E. ;

Wolf, R. C. ;

Zimmermann, O. .

NUCLEAR FUSION, 2006, 46 (08) :L1-L5

[9]

Lao L., 2005, P 47 ANN M DIV PLASM

[10] EQUILIBRIUM-ANALYSIS OF CURRENT PROFILES IN TOKAMAKS [J].

LAO, LL ;

FERRON, JR ;

GROEBNER, RJ ;

HOWL, W ;

STJOHN, H ;

STRAIT, EJ ;

TAYLOR, TS .

NUCLEAR FUSION, 1990, 30 (06) :1035-1049

← 1 2 →