Polarization and Mode Control of EAST 140 GHz ECRH&CD System
Polarization and Mode Control of EAST 140 GHz ECRH&CD System
复制标题
DOI：
10.1007/s10894-014-9721-6
复制
发表时间：
2014-06
影响因子：
1.1
通讯作者：
D. Wu;X. J. Wang;H. Xu;F. Liu;J. Shan;Y. Y. Tang-Y.;L. Xu;L. Zhang;M. Li;W. Wei
中科院分区：
文献类型：
--
作者：
D. Wu;X. J. Wang;H. Xu;F. Liu;J. Shan;Y. Y. Tang-Y.;L. Xu;L. Zhang;M. Li;W. Wei
140 GHz电子回旋加速器加热和电流驱动（ECRH&CD）项目于2011年在EAST托卡马克设施上启动，该项目旨在向等离子体发射4 MW的总功率，持续时间长达1,000 s。等离子体的加热和电流驱动效率取决于等离子体中的波耦合模式，而耦合性能取决于注入光束的偏振特性，因此偏振控制对于有效的等离子体加热和电流驱动是必要的。在EAST ECRH&CD系统中，将使用两个偏振器斜接弯来控制每条传输线的波偏振，可以通过调整每个偏振器斜接弯曲的反射镜旋转角度来产生任何所需的波偏振。本文主要研究了纯二次非寻常谐波模耦合时偏振镜设置随入射角的变化关系。
The 140 GHz electron cyclotron heating and current drive (ECRH&CD) project was launched in 2011 on EAST tokamak facility, which is designed to launch 4 MW of total power for the duration up to 1,000 s into the plasma. The heating and current drive efficiencies depend on the wave coupling mode in plasma and the coupling performance relies on polarization characteristics of injected beam, so polarization control is necessary for efficient plasma heating and current drive. Two polarizer miter bends will be used to control the wave polarization for each transmission line on EAST ECRH&CD system, any required wave polarization can be produced by adjusting the mirror rotation angle of each polarizer miter bend. This work mainly shows the calculated polarizer mirror settings as a function of the injection angles for pure second extraordinary harmonic mode coupling.