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核聚变与等离子体物理 ›› 2010, Vol. 30 ›› Issue (1): 46-50.

• 核聚变工程技术 • 上一篇    下一篇

HT-7装置电子回旋辐射系统接收天线改进

费勤山,凌必利,提 昂,刘 永,熊 刚,张莉丽,李二众,高 翔   

  1. (中国科学院等离子体物理研究所,合肥 230031)
  • 收稿日期:2009-02-27 修回日期:2009-09-10 出版日期:2010-03-15 发布日期:2010-05-11
  • 作者简介:费勤山(1974-),男,安徽合肥人,硕士研究生,主要从事托卡马克等离子体微波诊断。

Improvement of Gaussian antenna for electron cyclotron emission radiometer on HT-7 tokamak

FEI Qin-shan, LING Bi-li, TI Ang, LIU Yong, XIONG Gang, ZHANG Li-li, LI Er-zhong, GAO Xiang   

  1. (Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031)
  • Received:2009-02-27 Revised:2009-09-10 Online:2010-03-15 Published:2010-05-11

摘要: 为了提高HT-7装置上等离子体电子回旋辐射(ECE)超外差诊断系统的极向分辨率,根据高斯光学原理,分析了诊断系统天线的改进方案。优化了天线的圆形角锥喇叭尺寸和凸透镜参数以及在装置上的相对位置,使天线接收到的等离子体ECE异常模二次谐波辐射的高斯光束束半径只有30mm左右,能量的高斯光学性质损失不大于13%。

关键词: 电子回旋辐射, 高斯光学, 天线系统, 异常模二次谐波

Abstract: A scheme for redesigning its antenna in Gaussian optics is presented for improving the poloidal spatial resolution of the plasma electron cyclotron emission (ECE) super-heterodyne radiometer diagnostic system on the HT-7 tokamak. It is shown that the Gaussian optic loss of the radiant energy from the plasma ECE is no more than 13% by optimizing the dimensions of the circular pyramidal horn,the focus of the convex lens of the antenna system and their relative positions when the Gaussian bean radius of the emission of the ECE novel second harmonic is only 30mm or so.

Key words: Electron cyclotron emission, Gaussian optics, Antenna system, Novel second harmonic

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