Polarizer design for multi-frequency high power ECRH transmission lines

Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004. Pub Date : 2004-01-01 DOI:10.1109/ICIMW.2004.1422054

D. Wagner, F. Leuterer, G. Gantenbein, E. Holzhauer, W. Kasparek

引用次数: 1

Abstract

A new broadband ECRH system is currently under construction at the ASDEX Upgrade tokamak. This system employs multi-frequency gyrotrons step-tunable in the range 105-140 GHz. A set of two corrugated polarizer mirrors are applied to provide for an arbitrary polarization of the Gaussian beam injected into the plasma. The principal bandwidth of such a two-polarizer setup has been evaluated. It can be shown that two mirrors with sinusoidal grooves and corrugation depths adjusted to the center frequency of 122.5 GHz satisfy the requirements.

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多频大功率ECRH输电线路偏光镜设计

ASDEX升级托卡马克目前正在建设一个新的宽带ECRH系统。该系统采用多频回旋管，可在105-140 GHz范围内进行步进调谐。采用一组两个波纹偏振镜来提供注入等离子体的高斯光束的任意偏振。对这种双偏振器的主带宽进行了计算。结果表明，两个正弦沟槽和波纹深度调整到中心频率122.5 GHz的反射镜满足要求。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Infrared and Millimeter Waves, Conference Digest of the 2004 Joint 29th International Conference on 2004 and 12th International Conference on Terahertz Electronics, 2004.

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