Slablike ion temperature gradient driven mode in reversed shear tokamaks

被引：6

作者：

Idomura, Y ^{[1
]}

Tokuda, S ^{[1
]}

Kishimoto, Y ^{[1
]}

机构：

[1] Japan Atom Energy Res Inst, Naka Fus Res Estab, Dept Fus Plasma Res, Ibaraki 3110193, Japan

来源：

NEW JOURNAL OF PHYSICS | 2002年 / 4卷

关键词：

D O I：

10.1088/1367-2630/4/1/3a1

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The ion temperature gradient driven (ITG) mode in reversed shear tokamaks is analysed using a gyrokinetic toroidal particle code. It is found that the ITG mode in the reversed shear configuration shows a coupled mode structure between the slab and toroidal ITG modes. Especially in the q(min)-region, a slablike feature due to the reversed shear slab ITG mode (Idomura Y, Tokuda S and Wakatani M 1999 Phys. Plasmas 6 4658) becomes strong. This coupled eigenmode structure is changed from a slab mode to a toroidal mode depending on eta(i) = L-n/L-ti and L-ti. Results show that in reversed shear tokamaks the ITG mode is determined from a competition between the slab and toroidal ITG modes.

引用

页码：101.1 / 101.13

页数：13

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