Polarimeter-interferometer diagnostic using terahertz solid state sources for fluctuation measurements on Keda Torus eXperiment (KTX)

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-11-16 DOI:10.1088/2058-6272/ad0d55

Xingkang Wang, W. Mao, Jinlin Xie, T. Lan, Hong Li, A. Liu, Chu Zhou, X. Wen, Zian Wei, Jie Wu, Chen Chen, Dongkuan Liu, Xianhao Rao, Hu Cai, Jiaren Wu, Peng Deng, Haiqing Liu, Weixing Ding, Zhuang Ge, Wandong Liu

引用次数: 0

Abstract

A multi-channel polarimeter-interferometer has been developed on the Keda Torus eXperiment (KTX) for the study of equilibrium dynamics and internal magnetic fluctuations. Three-wave technique based on terahertz solid state sources (~650 GHz) is applied for simultaneous measurements of electron density and Faraday rotation angle. The output power of the microwave source is 2 mW. Faraday rotation effect using a rotating wave plate is tested with phase noise less than 0.8°, and the density phase noise is less than 0.9°. Measurement of Faraday rotation angle and density for discharges on KTX have demonstrated high sensitivity to internal MHD activities.

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利用太赫兹固态源对 Keda Torus eXperiment (KTX) 进行波动测量的偏振计干涉仪诊断法

在 Keda Torus eXperiment（KTX）上开发了多通道偏振计干涉仪，用于研究平衡动力学和内部磁波动。基于太赫兹固态源（约 650 千兆赫）的三波技术被用于同时测量电子密度和法拉第旋转角。微波源的输出功率为 2 mW。利用旋转波板测试了法拉第旋转效应，相位噪声小于 0.8°，密度相位噪声小于 0.9°。对 KTX 上放电的法拉第旋转角和密度的测量显示了对内部 MHD 活动的高灵敏度。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.