Development and initial results of 320 GHz interferometer system in Heliotron J

DOI PDF 参考文献20件 オープンアクセス
  • P. Zhang
    Graduate School of Energy Science, Kyoto University 1 , Uji, Kyoto 611-0011, Japan
  • S. Ohshima
    Institute of Advanced Energy, Kyoto University 2 , Uji, Kyoto 611-0011, Japan
  • H. Zhao
    Graduate School of Energy Science, Kyoto University 1 , Uji, Kyoto 611-0011, Japan
  • C. Deng
    University of California 3 , Los Angeles, California 90095-1594, USA
  • S. Kobayashi
    Institute of Advanced Energy, Kyoto University 2 , Uji, Kyoto 611-0011, Japan
  • S. Kado
    Institute of Advanced Energy, Kyoto University 2 , Uji, Kyoto 611-0011, Japan
  • T. Minami
    Institute of Advanced Energy, Kyoto University 2 , Uji, Kyoto 611-0011, Japan
  • R. Matoike
    Graduate School of Energy Science, Kyoto University 1 , Uji, Kyoto 611-0011, Japan
  • A. Miyashita
    Graduate School of Energy Science, Kyoto University 1 , Uji, Kyoto 611-0011, Japan
  • A. Iwata
    Graduate School of Energy Science, Kyoto University 1 , Uji, Kyoto 611-0011, Japan
  • Y. Kondo
    Graduate School of Energy Science, Kyoto University 1 , Uji, Kyoto 611-0011, Japan
  • D. Qiu
    Graduate School of Energy Science, Kyoto University 1 , Uji, Kyoto 611-0011, Japan
  • C. Wang
    Graduate School of Energy Science, Kyoto University 1 , Uji, Kyoto 611-0011, Japan
  • M. Luo
    Graduate School of Energy Science, Kyoto University 1 , Uji, Kyoto 611-0011, Japan
  • S. Konoshima
    Institute of Advanced Energy, Kyoto University 2 , Uji, Kyoto 611-0011, Japan
  • S. Inagaki
    Institute of Advanced Energy, Kyoto University 2 , Uji, Kyoto 611-0011, Japan
  • H. Okada
    Institute of Advanced Energy, Kyoto University 2 , Uji, Kyoto 611-0011, Japan
  • T. Mizuuchi
    Institute of Advanced Energy, Kyoto University 2 , Uji, Kyoto 611-0011, Japan
  • K. Nagasaki
    Institute of Advanced Energy, Kyoto University 2 , Uji, Kyoto 611-0011, Japan

抄録

<jats:p>A new 320 GHz solid-state source interferometer is installed in the Heliotron J helical device to explore the physics of high-density plasmas (ne &gt; 2–3 × 1019 m−3, typically) realized with advanced fueling techniques. This interferometry system is of the Michelson type and is based on the heterodyne principle, with two independent solid-state sources that can deliver an output power of up to 50 mW. A high time resolution measurement of &lt;1 µs can be derived by tuning the frequency of one source in the frequency range of 312–324 GHz on the new system, which can realize the fluctuation measurement. We successfully measured the line-averaged electron density in high-density plasma experiments. The measured density agreed well with a microwave interferometer measurement using a different viewing chord, demonstrating that the new system can be used for routine diagnostics of electron density in Heliotron J.</jats:p>

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