JET disruption studies in support of ITER

被引：74

作者：

Riccardo, V. ^{[1
]}

Arnoux, G. ^{[1
]}

Cahyna, P. ^{[2
]}

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

Huber, A. ^{[3
]}

Jachmich, S. ^{[4
]}

Kiptily, V. ^{[1
]}

Koslowski, R. ^{[3
]}

Krlin, L. ^{[2
]}

Lehnen, M. ^{[3
]}

Loarte, A. ^{[5
]}

Nardon, E. ^{[1
]}

Paprok, R. ^{[6
]}

Tskhakaya, D., Sr. ^{[7
]}

机构：

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

[2] Assoc EURATOM IPP CR, Vvi, Inst Plasma Phys AS CR, Prague, Czech Republic

[3] EURATOM, Forschungszentrum Julich, Ins Energieforsch 4, Julich, Germany

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

[5] ITER Org, Cadarache, France

[6] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic

[7] Univ Innsbruck, Inst Theoret Phys, EURATOM Assoc, A-6020 Innsbruck, Austria

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 2010年 / 52卷 / 12期

基金：

英国工程与自然科学研究理事会;

关键词：

PLASMA; ELECTRONS; FORCES; COILS;

D O I：

10.1088/0741-3335/52/12/124018

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：

Plasma disruptions affect plasma-facing and structural components of tokamaks due to electromechanical forces, thermal loads and generation of high energy runaway electrons (REs). Asymmetries in poloidal halo and toroidal plasma current can now be routinely measured in four positions 90 degrees apart. Their assessment is used to validate the design of the ITER vessel support system and its in-vessel components. The challenge of disruption thermal loads comes from both the short duration over which a large energy has to be lost and the potential for asymmetries. The focus of this paper will be on localized heat loads. Resonant magnetic perturbations failed to reduce the generation of REs in JET. An explanation of the limitations applying to these attempts is offered together with a minimum guideline. The REs generated by a moderate, but fast, Ar injection in limiter plasmas show evidence of milder and more efficient losses due to the high Ar background density.

引用

页数：12

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