Neoclassical tearing mode (NTM) magnetic spectrum and magnetic coupling in JET tokamak

被引：19

作者：

Baruzzo, M. ^{[1
]}

Alper, B. ^{[3
]}

Bolzonella, T. ^{[1
]}

Brix, M. ^{[3
]}

Buratti, P. ^{[2
]}

Challis, C. D. ^{[3
]}

Crisanti, F. ^{[2
]}

de la Luna, E. ^{[6
,8
]}

de Vries, P. C. ^{[3
]}

Giroud, C. ^{[3
]}

Hawkes, N. C. ^{[3
]}

Howell, D. F. ^{[3
]}

Imbeaux, F. ^{[5
]}

Joffrin, E. ^{[5
,8
]}

Koslowski, H. R. ^{[4
]}

Litaudon, X. ^{[5
]}

Mailloux, J. ^{[3
]}

Sips, A. C. C. ^{[7
,8
]}

Tudisco, O. ^{[2
]}

机构：

[1] EURATOM ENEA Assoc, Consorzio RFX, I-35127 Padua, Italy

[2] Assoc Euratom ENEA Fus, Rome, Italy

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

[4] Forschungszentrum Julich, Assoc EURATOM FZ Julich, Inst Plasmaphys, D-52425 Julich, Germany

[5] CEA, IRFM, F-13108 St Paul Les Durance, France

[6] Asociaci EURATOM CIEMAT, Lab Nacl Fus, Madrid, Spain

[7] European Commiss, B-1094 Brussels, Belgium

[8] EFDA CSU, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 2010年 / 52卷 / 07期

基金：

英国工程与自然科学研究理事会;

关键词：

RADIOMETER UPGRADE; PLASMAS; DRIVEN;

D O I：

10.1088/0741-3335/52/7/075001

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：

An experimental study on the poloidal mode number (m) spectrum produced by a single toroidal mode number (n) neoclassical tearing mode (NTM) in the JET tokamak is presented. Clear evidence of the existence of more than one significant m component is given. The analysis is performed comparing several methods and diagnostics; among the latter we mention high frequency magnetic pick-up coils and an electron cyclotron emission radiometer, which measures detailed electron temperature radial profiles at high time resolution. The two diagnostics are also used together in a cross coherence calculation technique. The issue of the interaction of this multiple m structure with the plasma is addressed as well, with particular attention paid to plasma toroidal rotation and rotation shear, obtained from charge exchange spectroscopy data. This effect has been studied under two different operational plasma scenarios on JET in order to investigate both dependences on plasma parameters and consequences on the scenario itself.

引用

页数：18

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