Boundary plasma and divertor phenomena in MAST

被引：38

作者：

Counsell, GF ^{[1
]}

Kirk, A

Ahn, JW

Tabasso, A

Yang, Y

机构：

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

[2] Univ London Imperial Coll Sci Technol & Med, London SW7 2BZ, England

[3] Inst Plasma Phys, Hefei 230031, Peoples R China

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 2002年 / 44卷 / 06期

关键词：

D O I：

10.1088/0741-3335/44/6/314

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 boundary and divertor plasma of a large spherical tokamak (ST), with significant auxilliary heating, is explored in detail for the first time. The extreme geometry of the ST is found to play a key role, giving rise to strong asymmetries in the transport of heat and particle fluxes (including those during ELMs) towards the outer divertor targets. Preliminary modelling reveals the very significant contribution of magnetic flux expansion to the particle flux balance of the ST scrape-off layer. Divertor detachment at the inboard targets is observed in L-mode at moderate core densities for plasmas with up to 1 MW of auxilliary heating.

引用

页码：827 / 843

页数：17