MHD stability of advanced tokamak scenarios with reversed central current: An explanation of the "current hole"

被引：55

作者：

Huysmans, GTA ^{[1
]}

Hender, TC

Hawkes, NC

Litaudon, X

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

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.87.245002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A region of zero current density in the plasma center has been observed in the advanced tokamak scenarios with off-axis lower-hybrid current drive in the JET and JT-60U tokamak experiments. Significantly, the central current density does not become negative, although this is expected based on conventional current diffusion. In this paper, it is shown that the zero central current density and the absence of negative central current can be explained by the influence of a resistive kink magnetohydrodynamic instability.

引用

页码：245002 / 1

页数：4

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