Experimental Evaluation of Energy Transfer between Fast Ions and Alfven Eigenmodes

POSTER

Abstract

Recently, a new wave-particle analyzer was proposed to identify interaction between fast ions and Alfven eigenmodes [K. Nagaoka, 67$^{\mathrm{th}}$ annual meeting of APS-DPP, savanna, 2015]. A data acquisition system for the wave-particle interaction analysis was developed for particle counting mode operation of neutral particle detectors. We recently applied the system to the Si-FNA detector signals in LHD and Heliotron J, and NPA signals in TJ-II. The first experimental results obtained in three devices are presented and the importance of the optimization of line of sight will be discussed.

Authors

  • Kenichi Nagaoka

    National Institutes of Natural Sciences, National Institute for Fusion Science, National Institute for Fusion Science

  • Masaki Osakabe

    National Institutes of Natural Sciences, National Institute for Fusion Science, National Institute for Fusion Science

  • Mitsutaka Isobe

    National Institutes of Natural Sciences, National Institute for Fusion Science

  • Kunihiro Ogawa

    National Institutes of Natural Sciences, National Institute for Fusion Science

  • Yasuhiro SUZUKI

    National Institutes of Natural Sciences, National Institute for Fusion Science, National Institute for Fusion Science, Natl Inst Fusion Science-Toki

  • Shinji Kobayashi

    Kyoto University

  • Satoshi Yamamoto

    Kyoto University

  • Yoshizumi Miyoshi

    Nagoya University

  • Yuto Katoh

    Tohoku University

  • Josep Maria Fontdecaba

    CIEMAT (Energy, Environment and Technology Research Center)

  • Enrique Ascasibar

    CIEMAT (Energy, Environment and Technology Research Center)