Determination of Spatiotemporal Structure of Fluctuations by Statistical Averaging Method

• KAWACHI Yuichi

  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

• INAGAKI Sigeru

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

• TOMITA Kentaro

  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

• YAMASAKI Kotaro

  Research Center for Plasma Turbulence, Kyushu University

• KIN Fumiyoshi

  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

• KOSUGA Yusuke

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

• SASAKI Makoto

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

• NAGASHIMA Yoshihiko

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

• KASUYA Naohiro

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

• HASAMADA Kazunobu

  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

• ZHANG Boyu

  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

• FUJISAWA Akihide

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

Abstract

Spatiotemporal structure of fluctuation with 11 kHz excited in a linear magnetized plasma was observed in details by applying pattern recognition method based on statistical averaging. Statistical behaviors of instantaneous period of the fluctuation and the temporal behavior of the radial profile of the fluctuation are clarified. Two-dimensional structure of the fluctuation is reconstructed and distortion of the wave-front of the fluctuation was inferred.

Journal

• Plasma and Fusion Research

  Plasma and Fusion Research 13 (0), 3401105-3401105, 2018-08-27

  The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

• non-linear wave
• plasma turbulence
• conditional averaging
• phase tracking
• spatiotemporal structure

Details

• CRID: 1390845713001682304
• NII Article ID: 130007486343
• DOI: 10.1585/pfr.13.3401105
• ISSN: 18806821
• Web Site: https://www.jstage.jst.go.jp/article/pfr/13/0/13_3401105/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed