Comparison of m=2, n=1 neo-classical tearing mode limits in JET and DIII-D

被引：36

作者：

Hender, TC ^{[1
]}

Howell, DF

Buttery, RJ

Sauter, O

Sartori, F

La Haye, RJ

Hyatt, AW

Petty, CC

机构：

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

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

[3] Gen Atom Co, San Diego, CA 92186 USA

来源：

NUCLEAR FUSION | 2004年 / 44卷 / 07期

关键词：

D O I：

10.1088/0029-5515/44/7/010

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：

Joint experiments have been conducted on JET and DIII-D to study m = 2, n = I neo-classical tearing modes (NTMs). Very similar instability behaviour is observed on both machines and the scaling of the mode island width with beta and the observation of n = I islands at q = 2, strongly points to these modes being driven by neo-classical effects. Identity experiments using closely matched non-dimensional parameters (plasma shape, aspect ratio, q, p* and collisionality) on JET and DIII-D show similar global beta-limits for the NTM. Further scalings, which combine broader data sets from JET and DIII-D, show an approximately linear scaling, or slightly stronger, with ion gyro-radius and a relatively weak dependence on collisionality.

引用

页码：788 / 794

页数：7

共 47 条

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