Nonlinear Coupling of Drift Waves and High Frequency Fluctuation on PANTA

• HASAMADA Kazunobu

  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

• KOSUGA Yusuke

  Research Institute for Applied Mechanics, Kyushu University Research Center for Plasma Turbulence, Kyushu University

• KIN Fumiyoshi

  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

• INAGAKI Sigeru

  Research Institute for Applied Mechanics, Kyushu University Research Center for Plasma Turbulence, Kyushu University

• NAGASHIMA Yoshihiko

  Research Institute for Applied Mechanics, Kyushu University Research Center for Plasma Turbulence, Kyushu University

• KOBAYASHI Tatsuya

  National Institute for Fusion Science

• SASAKI Makoto

  Research Institute for Applied Mechanics, Kyushu University Research Center for Plasma Turbulence, Kyushu University

• KASUYA Naohiro

  Research Institute for Applied Mechanics, Kyushu University Research Center for Plasma Turbulence, Kyushu University

• YAMASAKI Kotaro

  Research Institute for Applied Mechanics, Kyushu University

• ITOH Sanae-I.

  Research Institute for Applied Mechanics, Kyushu University Research Center for Plasma Turbulence, Kyushu University

• ITOH Kimitaka

  Research Center for Plasma Turbulence, Kyushu University National Institute for Fusion Science Institute of Science and Technology Research, Chubu University

• FUJISAWA Akihide

  Research Institute for Applied Mechanics, Kyushu University Research Center for Plasma Turbulence, Kyushu University

Abstract

A new type of nonlinear coupling among multi-time scale of fluctuations is observed on the linear plasma device, PANTA. The low frequency drift waves (DWs), a few kHz and a high frequency fluctuation (the HF fluctuation) (∼ 30 kHz) are simultaneously observed. These fluctuations nonlinearly couple with each other confirmed by bi-coherence analysis. The characteristics of HF fluctuation are also discussed.

Journal

• Plasma and Fusion Research

  Plasma and Fusion Research 12 (0), 1201034-1201034, 2017

  The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

• nonlinear coupling
• multi-time scale
• drift wave

Details

• CRID: 1390001205255528448
• NII Article ID: 130006191010
• DOI: 10.1585/pfr.12.1201034
• ISSN: 18806821
• Web Site: https://www.jstage.jst.go.jp/article/pfr/12/0/12_1201034/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed