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首页> 中文期刊> 《中国物理快报：英文版》 >Observation of E×B Flow Velocity Profile Change Using Doppler Reflectometry in HL-2A

Observation of E×B Flow Velocity Profile Change Using Doppler Reflectometry in HL-2A

         
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摘要

A broadband,O-mode sweeping Doppler reflectometry designed for measuring plasma E×B flow velocity profiles is operated in HL-2A.The main feature of the Doppler reflectometry is its capability to be tuned to any selected frequency in total waveband from 26-40 GHz.This property enables us to probe several plasma layers within a short time interval during a discharge,permitting the characterization of the radial distribution of plasma fluctuations.The system allows us to extract important information about the velocity change layer,namely its spatial localization.In purely Ohmic discharge a change of the E×B flow velocity profiles has been observed in the region for 28 ＜ r ＜ 30cm if only the line average density exceeds 2.2×1019 m-3.The density gradient change is measured in the same region,too.

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  • 来源
    《中国物理快报：英文版》 |2009年第3期|157-160|共4页
  • 作者

    XIAO Wei-Wen; ZOU Xiao-Lan; DING Xuan-Tong; DONG Jia-Qi; LIU Ze-Tian; SONG Shao-Dong; GAO Ya-Dong; YAO Liang-Hua; FENG Bei-Bin; SONG Xian-Ming; CHEN Cheng-Yuan; SUN Hong-Juan; LI Yong-Gao; YANG Qing-Wei; YAN Long-Wen; LIU Yi; DUAN Xu-Ru; PAN Chuan-Hong; LIU Yong;

  • 作者单位

    Southwestern Institute of Physics,PO Box 432,Chengdu 610041;

    Association Euratom-CEA,CEA/DSM/IRFM,CEA/Cadarache,13018 St Paul-les-Durance,France;

    Southwestern Institute of Physics,PO Box 432,Chengdu 610041;

    Southwestern Institute of Physics,PO Box 432,Chengdu 610041;

    Southwestern Institute of Physics,PO Box 432,Chengdu 610041;

    Association Euratom-CEA,CEA/DSM/IRFM,CEA/Cadarache,13018 St Paul-les-Durance,France;

    Southwestern Institute of Physics,PO Box 432,Chengdu 610041;

    Southwestern Institute of Physics,PO Box 432,Chengdu 610041;

    Southwestern Institute of Physics,PO Box 432,Chengdu 610041;

    Southwestern Institute of Physics,PO Box 432,Chengdu 610041;

    Southwestern Institute of Physics,PO Box 432,Chengdu 610041;

    Southwestern Institute of Physics,PO Box 432,Chengdu 610041;

    Southwestern Institute of Physics,PO Box 432,Chengdu 610041;

    Southwestern Institute of Physics,PO Box 432,Chengdu 610041;

    Southwestern Institute of Physics,PO Box 432,Chengdu 610041;

    Southwestern Institute of Physics,PO Box 432,Chengdu 610041;

    Southwestern Institute of Physics,PO Box 432,Chengdu 610041;

    Southwestern Institute of Physics,PO Box 432,Chengdu 610041;

    Southwestern Institute of Physics,PO Box 432,Chengdu 610041;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 物理学;
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