Mitigation of NBI-driven Alfvén eigenmodes by electron cyclotron heating in the TJ-II stellarator

Mitigation of NBI-driven Alfvén eigenmodes by electron cyclotron heating in the TJ-II stellarator
复制标题

通过 TJ-II 仿星器中的电子回旋加速器加热减轻 NBI 驱动的阿尔文本征模

DOI:
10.1088/0029-5515/53/7/072004
复制
发表时间:
2013
期刊:
影响因子:
3.3
通讯作者:
Y. Takeiri
Y. Takeiri
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
K. Nagaoka;T. Ido;E. Ascasíbar;T. Estrada;S. Yamamoto;A. Melnikov;A. Cappa;C. Hidalgo;M. Pedrosa;B. V. Van Milligen;I. Pastor;M. Liniers;M. Ochando;A. Shimizu;L. Eliseev;S. Ohshima;K. Mukai;Y. Takeiri

文献摘要

参考文献

被引文献

相似文献

在TJ-II等离子体中观察到由nbi产生的快离子驱动的alfv<s:1>本征模(AE)活性。所测AEs对电子回旋加热(ECH)功率有两步响应。在第一步中,当中等ECH功率施加到仅nbi加热的等离子体中时,不稳定ae的连续特征转变为边缘不稳定ae的啁啾特征。在第二步中,当ECH功率增加一倍时,可以观察到AE振幅的显著降低。这种稳定效应已经在单次放电和单次放电的实验中得到了证实。与离轴ECH相比,同轴ECH功率注入的稳定效果更强。
Alfvén eigenmode (AE) activity driven by NBI-produced fast ions is observed in TJ-II plasmas. A two-step response of the measured AEs to electron cyclotron heating (ECH) power is seen. In a first step, the continuous character of the unstable AEs changes to a chirping character of the marginally unstable AEs when moderate values of ECH power are applied to the NBI-only-heated plasma. In a second step, a significant reduction of the AE amplitude is observed when the ECH power is doubled. This stabilizing effect has been experimentally confirmed both on a shot-by-shot basis and along a single discharge by means of ECH modulation. The observed stabilizing effect is stronger with on-axis ECH than with off-axis ECH power injection.
DOI: 10.1088/0029-5515/40/3/511
发表时间: 2000-03
期刊: Nuclear Fusion
影响因子: 3.3
作者:
Current Drive
通讯作者: Current Drive
通过测地线声学模式观察从高能粒子到大块离子的新能量通道
DOI: --
发表时间: 2012
期刊:
影响因子: --
作者:
井戸毅;長壁正樹;他
通讯作者: 他