High Power ECW Injection and MM Wave Transmission

在去年的基础上，日本和德国科学家参加了由斯图加特大学等离子体研究所支持的马克斯普朗克等离子体物理研究所NIFS、W7-AS、Asdex-U和W7-X的大功率毫米波传输和注入大型螺旋装置的实验。研究课题为：解决波纹波导中的电弧问题，研制功率监测仪，并对加热实验结果进行讨论。在斯图加特大学经验的基础上，我们在多观测站和功率监测器上制作了电弧探测器和鉴别器的原型。对多孔功率监测仪的电火花加工技术进行了探讨。该功率监测器经实验测试符合要求，已在液晶显示器中应用。讨论了利用该多孔耦合器监测偏振的方法，并进行了初步设计。通过相互交流高新技术，基本达到了目的，国际合作取得了成功。双方同意通过交换信息来解决剩下的问题。

On the basis of extension from the last year, Japanese and German scientists take part in the experiments of high-power millimeter wave transmission and Injection to Large Helical Device in NIFS, W7-AS, Asdex-U and W7-X in Max-Planck Institute for Plasma Physics supported by Institute of Plasma Research in Stuttgart University.The research subjects are as follows : to solve an arcing in the corrugated waveguide and to develop the power monitor and to discussed the results from the heating experiments. On the basis of experience at Stuttgart University, we fabricate the prototype arc detector and discriminator at the multi-observation stations and the power monitor. We have the dialogue on fabrication technique, which is the electric discharge machining, for the multi-ho1e power monitor. The experimental test of the power monitor satisfies the specification and its monitor is being used in the LHD.To monitor the polarization by use of this multi-hole coupler is discussed with the preliminary design.By exchange of mutual high technology, the object is almost achieved and we evaluate that the International collaboration is succeeded. Both team agreed that the remaining items are solved by the exchange of the information.