Beam alignment of ECH transmission line using moment method
Beam alignment of ECH transmission line using moment method
复制标题
使用力矩法进行 ECH 传输线的光束对准
DOI：
10.1109/icimw.2002.1076129
复制
发表时间：
2002
期刊：
影响因子：
--
通讯作者：
K. Ohkubo
中科院分区：
文献类型：
--
作者：
H. Idei;T. Shimozuma;T. Notake;S. Ito;S. Kubo;M. Shapiro;J. Anderson;R. Temkin;K. Ohkubo
在84 GHz的CPI回旋管中，采用单级降压收集极TE/sub 15，3/振荡模式，在管中安装几何光学Vlasov变换器，将模式转换为高斯光束。在国家聚变科学研究所（NIFS）准备了可以测量强度和相位图案的低功率测试台。利用矩量法从测量的光强和相位分布推导出准光束的大小和倾斜角。类高斯光束耦合到具有倾斜角调节的HE/sub 11/波纹波导中。用矩量法分析了耦合后的波导辐射光束。讨论了辐射光束中的高斯成分。
In the 84 GHz CPI gyrotron, with a single-stage depressed collector in the TE/sub 15,3/ oscillating mode, a geometric optics Vlasov converter was installed in the tube to convert the mode into a Gaussian beam. The low power test stand where intensity and phase patterns can be measured was prepared at the National Institute for Fusion Science (NIFS). The sizes and tilt angles of quasi-optical beams are deduced from the measured intensity and phase profiles using the moment method. The Gaussian-like beam is coupled into the HE/sub 11/ corrugated waveguide with tilt angle adjustment. The beam radiated from the waveguide after coupling is analyzed with the moment method. The Gaussian content in the radiated beam is also discussed.