Measurement of Dynamical Density Profiles Using a Microwave Frequency Comb Reflectometer

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Author(s)

    • INAGAKI Shigeru
    • Research Institute for Applied Mechanics, Kyushu University|Itoh Research Center for Plasma Turbulence, Kyushu University
    • ITOH Kimitaka
    • Itoh Research Center for Plasma Turbulence, Kyushu University|National Institute for Fusion Science
    • YAMADA Takuma
    • Itoh Research Center for Plasma Turbulence, Kyushu University|Faculty of Arts and Science, Kyushu University
    • ITOH Sanae-I.
    • Research Institute for Applied Mechanics, Kyushu University|Itoh Research Center for Plasma Turbulence, Kyushu University
    • TOKUZAWA Tokihiko
    • Research Institute for Applied Mechanics, Kyushu University|National Institute for Fusion Science
    • FUJISAWA Akihide
    • Research Institute for Applied Mechanics, Kyushu University|Itoh Research Center for Plasma Turbulence, Kyushu University
    • KASUYA Naohiro
    • Research Institute for Applied Mechanics, Kyushu University|Itoh Research Center for Plasma Turbulence, Kyushu University
    • SASAKI Makoto
    • Research Institute for Applied Mechanics, Kyushu University|Itoh Research Center for Plasma Turbulence, Kyushu University
    • NAGASHIMA Yoshihiko
    • Research Institute for Applied Mechanics, Kyushu University|Itoh Research Center for Plasma Turbulence, Kyushu University

Abstract

We propose the use of a microwave comb for measuring the density profile as a continuous function of radius with high temporal resolution. The analysis focuses on phase-sensitive convolution of the reflected waves: convolution of pulses can eliminate statistical noise. The time resolution for constructing the density profile is also discussed.

Journal

  • Plasma and Fusion Research

    Plasma and Fusion Research 8(0), 1201171-1201171, 2013

    The Japan Society of Plasma Science and Nuclear Fusion Research

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