Neoclassical tearing mode suppression with ECRH and current drive in ASDEX upgrade

被引：0

作者：

Gantenbein, G ^{[1
]}

Keller, A ^{[1
]}

Leuterer, F ^{[1
]}

Maraschek, M ^{[1
]}

Suttrop, W ^{[1
]}

Zohm, H ^{[1
]}

机构：

[1] Univ Stuttgart, Inst Plasmaforsch, D-70569 Stuttgart, Germany

来源：

RADIO FREQUENCY POWER IN PLASMAS | 2003年 / 694卷

关键词：

D O I：

暂无

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：

Neoclassical tearing modes (NTMs) occurring in high beta discharges have a substantial influence on the performance of a tokamak. The suppression and avoidance of these instabilities is considered as a primary task for future machines like ITER, In ASDEX Upgrade, ECRH power is used to stabilise NTMs in high confinement discharges by replacing the 'missing' bootstrap current. For the m=3, n=2 modes complete stabilisation at high beta(N) was successfully demonstrated in ASDEX Upgrade. Additional features in the case of 2/1 NTM are the vicinity of the q = 2 surface to the vacuum vessel which triggers undesirable interaction, leading to mode locking, and the lower plasma temperature and hence lower current drive efficiency compared to the q = 3/2 surface.

引用

页码：317 / 320

页数：4

共 6 条

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PHYSICS OF PLASMAS, 2001, 8 (05) :2009-2016

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