Micro-stability and transport modelling of internal transport barriers on JET

被引：26

作者：

Garbet, X ^{[1
]}

Baranov, Y

Bateman, G

Benkadda, S

Beyer, P

Budny, R

Crisanti, F

Esposito, B

Figarella, C

Fourment, C

Ghendrih, P

Imbeaux, F

Joffrin, E

Kinsey, J

Kritz, A

Litaudon, X

Maget, P

Mantica, P

Moreau, D

Sarazin, Y

Pankin, A

Parail, V

Peeters, A

Tala, T

Tardini, G

Thyagaraja, A

Voitsekhovitch, I

Weiland, J

Wolf, R

机构：

[1] CEA, EURATOM Assoc, F-13108 St Paul Les Durance, France

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

[3] Lehigh Univ, Dept Phys, Bethlehem, PA 18015 USA

[4] Ctr Univ St Jerome, LPIIM, F-13397 Marseille 20, France

[5] Princeton Univ, PPPL, Princeton, NJ 08543 USA

[6] ENEA, EURATOM Assoc, I-00044 Frascati, Italy

[7] EURATOM, CNR, Ist Fis Plasma, I-20125 Milan, Italy

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

[9] EURATOM, TEKES, VTT CTIP, FIN-02044 Espoo, Finland

[10] Chalmers Univ Technol, S-41296 Gothenburg, Sweden

[11] EURATOM VR Assoc, S-41296 Gothenburg, Sweden

[12] EURATOM, FZJ, Inst Plasmaphys, D-52425 Julich, Germany

来源：

NUCLEAR FUSION | 2003年 / 43卷 / 09期

关键词：

D O I：

10.1088/0029-5515/43/9/323

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 physics of internal transport barrier (ITB) formation in JET has been investigated using micro-stability analysis, profile modelling and turbulence simulations. The calculation of linear growth rates shows that magnetic shear plays a crucial role in the formation of the ITB. Shafranov shift, ratio of the ion to electron temperature, and impurity content further improve the stability. This picture is consistent with profile modelling and global fluid simulations of electrostatic drift waves. Turbulence simulations also show that rational q values may play a special role in triggering an ITB. The same physics also explains how double internal barriers can be formed.

引用

页码：975 / 981

页数：7

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