Three-dimensional structure and dynamic response of streamers in plasma turbulence

• Project/Area Number: 17K06994
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Nuclear fusion studies
• Research Institution: Kyushu University
• Principal Investigator: Yamada Takuma 九州大学, 基幹教育院, 教授 (90437773)
• Project Period (FY): 2017-04-01 – 2023-03-31
• Project Status: Completed (Fiscal Year 2022)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2017: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
• Keywords: 乱流計測 / 非線形結合 / ストリーマー / プラズマ・核融合

Outline of Final Research Achievements

In plasma turbulence research, it is important to understand the nature of streamer, which is one of the meso-scale structures. On linear plasma device, PANTA, of Kyushu University, streamer, its mediator, which has an important role for streamer formation, and its carrier waves, which form the streamer structure, have been observed three dimensionally and their axial structures were clarified. In addition, by using new analyzing methods, nonlinear coupling in the azimuthal direction was confirmed, and local information of the azimuthal wave number was partially obtained.

Academic Significance and Societal Importance of the Research Achievements

核融合発電の実現にはプラズマ乱流の理解し制御することが求められる。中でもメゾスケール構造は乱流輸送に大きな影響を与え、例えばメゾスケール構造の一種であるストリーマー構造はプラズマ内の輸送を増大させ、閉じ込めを劣化させてしまう。本研究では直線プラズマに発生するストリーマー構造を数多くの計測点や様々な解析手法によって3次元的に観測し、その詳細を明らかにした。特にこれまでのスペクトル解析・バイスペクトル解析を発展させた新しい解析手法はストリーマーの構造を明らかにするだけでなく、プラズマ乱流の精密計測実験の先駆けとなり大いに波及効果を生み出す。

Research Products

• [Journal Article] A Proposal to Evaluate Electron Temperature and Electron Density Fluctuations Using Dual Wavelength Emission Intensity Tomography in a Linear Plasma (2023)
  • Author(s): Nagashima Yoshihiko、Fujisawa Akihide、Yamasaki Kotaro、Inagaki Shigeru、Moon Chanho、Kin Fumiyoshi、Kawachi Yuichi、Arakawa Hiroyuki、Yamada Takuma、Kobayashi Tatsuya、Kasuya Naohiro、Kosuga Yusuke、Sasaki Makoto、Ido Takeshi
  • Journal Title: Journal of the Physical Society of Japan Volume: 92 Issue: 3 Pages: 033501-033501
  • DOI: 10.7566/jpsj.92.033501
  • Peer Reviewed
• [Journal Article] Formation Process of a Solitary Vortex in a Zonal Flow - Drift-Wave Dynamics (2022)
  • Author(s): ARAKAWA Hiroyuki、SASAKI Makoto、INAGAKI Shigeru、LESUR Maxime、KOSUGA Yusuke、KOBAYASHI Tatsuya、KIN Fumiyoshi、YAMADA Takuma、NAGASHIMA Yoshihiko、FUJISAWA Akihide、ITOH Kimitaka
  • Journal Title: Plasma and Fusion Research Volume: 17 Issue: 0 Pages: 1301106-1301106
  • DOI: 10.1585/pfr.17.1301106
  • ISSN: 1880-6821
  • Year and Date: 2022-11-24
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Spatiotemporal dynamics of high-wavenumber turbulence in a basic laboratory plasma (2022)
  • Author(s): Kawachi Yuichi、Sasaki Makoto、Kosuga Yusuke、Terasaka Kenichiro、Nishizawa Takashi、Yamada Takuma、Kasuya Naohiro、Moon Chanho、Inagaki Shigeru
  • Journal Title: Scientific Reports Volume: 12 Issue: 1 Pages: 19799-19799
  • DOI: 10.1038/s41598-022-23559-1
  • Peer Reviewed / Open Access
• [Journal Article] Interactions of drift wave turbulence with streamer flows in wave-kinetic formalism (2021)
  • Author(s): Sasaki M.、Arakawa H.、Kobayashi T.、Kin F.、Kawachi Y.、Yamada T.、Itoh K.
  • Journal Title: Physics of Plasmas Volume: 28 Issue: 10 Pages: 102304-102304
  • DOI: 10.1063/5.0059839
  • Peer Reviewed
• [Journal Article] Dynamic interaction between fluctuations with different origins in a linear magnetized plasma (2021)
  • Author(s): Kawachi Y.、Inagaki S.、Sasaki M.、Kosuga Y.、Yamasaki K.、Kobayashi T.、Kin F.、Yamada T.、Arakawa H.、Nagashima Y.、Moon C.、Kasuya N.、Fujisawa A.
  • Journal Title: Physics of Plasmas Volume: 28 Issue: 11 Pages: 112302-112302
  • DOI: 10.1063/5.0065887
  • Peer Reviewed / Open Access
• [Journal Article] Correlation-estimated conditional average method and its application on solitary oscillation in PANTA (2021)
  • Author(s): Kobayashi T-K、Fujisawa A、Nagashima Y、Moon C、Yamasaki K、Nishimura D、Inagaki S、Yamada T、Kasuya N、Kosuga Y、Sasaki M、Kawachi Y
  • Journal Title: Plasma Physics and Controlled Fusion Volume: 63 Issue: 3 Pages: 032001-032001
  • DOI: 10.1088/1361-6587/abd980
  • Peer Reviewed
• [Journal Article] Observation of spatiotemporal structures of temperature fluctuations by using of a statistical phase detection method in a linear magnetized plasma (2020)
  • Author(s): Kawachi Yuichi、Inagaki Shigeru、Kin Fumiyoshi、Yamasaki Kotaro、Kosuga Yusuke、Sasaki Makoto、Nagashima Yoshihiko、Yamada Takuma、Arakawa Hiroyuki、Kasuya Naohiro、Moon Chanho、Hasamada Kazunobu、Fujisawa Akihide
  • Journal Title: Plasma Physics and Controlled Fusion Volume: 62 Issue: 5 Pages: 055011-055011
  • DOI: 10.1088/1361-6587/ab8132
  • Peer Reviewed / Open Access
• [Journal Article] Tomography system for two-dimensional observation of fluctuation in magnetized plasma (2020)
  • Author(s): Yamasaki K.、Fujisawa A.、Nagashima Y.、Moon C.、Inagaki S.、Yamada T.
  • Journal Title: Review of Scientific Instruments Volume: 91 Issue: 3 Pages: 033502-033502
  • DOI: 10.1063/1.5144480
  • Peer Reviewed
• [Journal Article] Estimation of Particle Flux Driven by Coherent Mode Using of Statistical Conditional Averaging (2019)
  • Author(s): KAWACHI Yuichi、INAGAKI Sigeru、HASAMADA Kazunobu、YAMASAKI Kotaro、KIN Fumiyoshi、KOSUGA Yusuke、SASAKI Makoto、NAGASHIMA Yoshihiko、KASUYA Naohiro、YAMADA Takuma、ZHANG Boyu、FUJISAWA Akihide
  • Journal Title: Plasma and Fusion Research Volume: 14 Issue: 0 Pages: 1402090-1402090
  • DOI: 10.1585/pfr.14.1402090
  • NAID: 130007660676
  • ISSN: 1880-6821
  • Year and Date: 2019-05-16
  • Peer Reviewed / Open Access
• [Journal Article] Observations of radially elongated particle flux induced by streamer in a linear magnetized plasma (2019)
  • Author(s): Kin F.、Fujisawa A.、Itoh K.、Kosuga Y.、Sasaki M.、Inagaki S.、Nagashima Y.、Yamada T.、Kasuya N.、Yamasaki K.、Hasamada K.、Zhang B. Y.、Kawachi Y.、Arakawa H.、Kobayashi T.、Itoh S.-I.
  • Journal Title: Physics of Plasmas Volume: 26 Issue: 4 Pages: 042306-042306
  • DOI: 10.1063/1.5093218
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Roles of solitary eddy and splash in drift wave?zonal flow system in a linear magnetized plasma (2019)
  • Author(s): Arakawa H.、Sasaki M.、Inagaki S.、Kosuga Y.、Kobayashi T.、Kasuya N.、Yamada T.、Nagashima Y.、Kin F.、Fujisawa A.、Itoh K.、Itoh S.-I.
  • Journal Title: Physics of Plasmas Volume: 26 Issue: 5 Pages: 052305-052305
  • DOI: 10.1063/1.5094577
  • Peer Reviewed / Open Access
• [Journal Article] Ion temperature measurement by laser‐induced fluorescence spectroscopy in panta (2019)
  • Author(s): Arakawa Hirotyuki、Inagaki Shigeru、Kosuga Yusuke、Sasaki Makoto、Kin Fumiyoshi、Hasamada Kazunobu、Yamasaki Kotaro、Kobayashi Tatsuya、Yamada Takuma、Nagashima Yoshihiko、Fujisawa Akihide、Kasuya Naohiro、Itoh Kimitaka、Itoh Sanae‐I
  • Journal Title: IEEJ Transactions on Electrical and Electronic Engineering Volume: 14 Issue: 10 Pages: 1450-1454
  • DOI: 10.1002/tee.22962
  • Peer Reviewed / Open Access
• [Journal Article] Fourier-rectangular function analysis for cylindrical plasma images (2019)
  • Author(s): Yamasaki K.、Fujisawa A.、Nagashima Y.、Moon C.、Inagaki S.、Kasuya N.、Kosuga Y.、Sasaki M.、Yamada T.
  • Journal Title: Journal of Applied Physics Volume: 126 Issue: 4 Pages: 043304-043304
  • DOI: 10.1063/1.5108717
  • Peer Reviewed
• [Journal Article] Study of turbulence intermittency in linear magnetized plasma (2019)
  • Author(s): Zhang Boyu、Inagaki Shigeru、Hasamada Kazunobu、Yamasaki Kotaro、Kin Fumiyoshi、Nagashima Yoshihiko、Yamada Takuma、Fujisawa Akihide
  • Journal Title: Plasma Physics and Controlled Fusion Volume: 61 Issue: 11 Pages: 115010-115010
  • DOI: 10.1088/1361-6587/ab434f
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Turbulence Simulation on Zonal Flow Formations in the Presence of Parallel Flows (2019)
  • Author(s): SASAKI Makoto、KASUYA Naohiro、KOSUGA Yusuke、KOBAYASHI Tatsuya、YAMADA Takuma、ARAKAWA Hiroyuki、INAGAKI Shigeru、ITOH Kimitaka
  • Journal Title: Plasma and Fusion Research Volume: 14 Issue: 0 Pages: 1401161-1401161
  • DOI: 10.1585/pfr.14.1401161
  • NAID: 130007750212
  • Peer Reviewed / Open Access
• [Journal Article] Combined methods of moment vectors and Stokes parameters to analyze tomographic image of plasma turbulence (2019)
  • Author(s): Fujisawa A.、Nagashima Y.、Yamasaki K.、Inagaki S.、Yamada T.、Sasaki M.
  • Journal Title: Physics of Plasmas Volume: 26 Issue: 1 Pages: 012305-012305
  • DOI: 10.1063/1.5048970
  • Peer Reviewed
• [Journal Article] Symmetry-Breaking of Turbulence Structure and Position Identification in Toroidal Plasmas (2018)
  • Author(s): ITOH Kimitaka、ITOH Sanae-I.、NAGASHIMA Yoshihiko、YAMADA Takuma、KOSUGA Yusuke、FUJISAWA Akihide
  • Journal Title: Plasma and Fusion Research Volume: 13 Issue: 0 Pages: 1102113-1102113
  • DOI: 10.1585/pfr.13.1102113
  • NAID: 130007529164
  • ISSN: 1880-6821
  • Year and Date: 2018-10-05
  • Peer Reviewed / Open Access
• [Journal Article] Extraction of nonlinear waveform in turbulent plasma (2018)
  • Author(s): Kin F.、Itoh K.、Fujisawa A.、Kosuga Y.、Sasaki M.、Yamada T.、Inagaki S.、Itoh S.-I.、Kobayashi T.、Nagashima Y.、Kasuya N.、Arakawa H.、Yamasaki K.、Hasamada K.
  • Journal Title: Physics of Plasmas Volume: 25 Issue: 6 Pages: 062304-062304
  • DOI: 10.1063/1.5027124
  • NAID: 130006711929
  • Peer Reviewed
• [Journal Article] Position Identification of Measurement for the Study of Symmetry-Breaking of Turbulence Structure in Toroidal Plasmas (2018)
  • Author(s): Itoh Kimitaka、Itoh Sanae-I.、Nagashima Yoshihiko、Yamada Takuma、Fujisawa Akihide
  • Journal Title: Journal of the Physical Society of Japan Volume: 87 Issue: 2 Pages: 025002-025002
  • DOI: 10.7566/jpsj.87.025002
  • NAID: 210000134713
  • Peer Reviewed / Open Access
• [Journal Article] Magnetic island dynamics in magnetic reconnection in UTST experiments (2018)
  • Author(s): Kamio S.、Inomoto M.、Yamasaki K.、Yamada T.、Cheng C. Z.、Ono Y.
  • Journal Title: Physics of Plasmas Volume: 25 Issue: 1 Pages: 012126-012126
  • DOI: 10.1063/1.5006092
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Three-Dimensional Structure of the Streamer in Linear Plasmas (2018)
  • Author(s): Yamada Takuma、Inagaki Shigeru、Sasaki Makoto、Nagashima Yoshihiko、Kin Fumiyoshi、Arakawa Hiroyuki、Kobayashi Tatsuya、Yamasaki Kotaro、Kasuya Naohiro、Kosuga Yusuke、Fujisawa Akihide、Itoh Kimitaka、Itoh Sanae-I.
  • Journal Title: Journal of the Physical Society of Japan Volume: 87 Issue: 3 Pages: 034501-034501
  • DOI: 10.7566/jpsj.87.034501
  • NAID: 210000134734
  • Peer Reviewed / Open Access
• [Journal Article] Investigation of Merging/reconnection Heating during Solenoid-free Startup of Plasmas in the MAST Spherical Tokamak (2017)
  • Author(s): H. Tanabe, T. Yamada, K. Gi, T. Watanabe, M. Inomoto, R. Imazawa, M. Gryaznevich, R. Scannell, N. Conway, C. Michael, B. Crowley, I. Fitzgerald, A. Meakins, N. Hawkes, K. McClements, J. Harrison, T. O'Gorman, C. Z. Cheng, Y. Ono
  • Journal Title: Nuclear Fusion Volume: 57 Issue: 5 Pages: 056037-056037
  • DOI: 10.1088/1741-4326/aa6608
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Phenomenological Classification of Turbulence States in Linear Magnetized Plasma PANTA (2017)
  • Author(s): Kobayashi T.、Inagaki S.、Kosuga Y.、Sasaki M.、Nagashima Y.、Yamada T.、Arakawa H.、Kasuya N.、Fujisawa A.、Itoh S.-I. 、Itoh K.
  • Journal Title: Plasma and Fusion Research Volume: 12 Issue: 0 Pages: 1401019-1401019
  • DOI: 10.1585/pfr.12.1401019
  • NAID: 130006897725
  • ISSN: 1880-6821
  • Peer Reviewed / Open Access
• [Journal Article] Multiple-Instabilities in Magnetized Plasmas with Density Gradient and Velocity Shears (2017)
  • Author(s): Sasaki M.、Kasuya N.、Toda S.、Yamada T.、Kosuga Y.、Arakawa H.、Kobayashi T.、Inagaki S.、Fujisawa A.、Nagashima Y.、Itoh K.、Itoh S.-I.
  • Journal Title: Plasma and Fusion Research Volume: 12 Issue: 0 Pages: 1401042-1401042
  • DOI: 10.1585/pfr.12.1401042
  • NAID: 130006224433
  • ISSN: 1880-6821
  • Peer Reviewed / Open Access
• [Journal Article] Topological bifurcation of helical flows in magnetized plasmas with density gradient and parallel flow shear (2017)
  • Author(s): Sasaki M.、Kasuya N.、Itoh K.、Toda S.、Yamada T.、Kosuga Y.、Nagashima Y.、Kobayashi T.、Arakawa H.、Yamasaki K.、Fujisawa A.、Inagaki S.、Itoh S.-I.
  • Journal Title: Physics of Plasmas Volume: 24 Issue: 11 Pages: 112103-112103
  • DOI: 10.1063/1.5000343
  • Peer Reviewed / Open Access
• [Presentation] 直線プラズマにおける非線形現象の位相空間解析 (2022)
  • Author(s): 山田琢磨, 佐々木真, 河内裕一, 山崎広太郎, 永島芳彦, 糟谷直宏, 小菅佑輔, 稲垣滋, 藤澤彰英, 伊藤公孝
  • Organizer: 日本物理学会 2022年秋季大会
• [Presentation] 直線プラズマにおける非線形現象の先進的解析 (2021)
  • Author(s): 山田琢磨, 稲垣滋, 佐々木真, 河内裕一, 山崎広太郎, 永島芳彦, 糟谷直宏, 小菅佑輔, 藤澤彰英, 伊藤公孝
  • Organizer: 日本物理学会 2021年秋季大会
• [Presentation] PANTAにおける非線形現象の研究 (2020)
  • Author(s): 山田琢磨, 稲垣滋, 佐々木真, 永島芳彦, 山﨑広太郎, 糟谷直宏, 小菅佑輔, 藤澤彰英, 伊藤公孝
  • Organizer: 日本物理学会 2020年秋季大会
• [Presentation] 直線プラズマにおける非線形結合の研究, (2020)
  • Author(s): 山田 琢磨, 稲垣 滋, 佐々木 真, 永島 芳彦, 山﨑 広太郎, 糟谷 直宏, 小菅 佑輔, 藤澤 彰英, 伊藤 公孝
  • Organizer: 日本物理学会 第75回年次大会
• [Presentation] 直線プラズマにおける非線形結合とストリーマー (2019)
  • Author(s): 山田 琢磨, 稲垣 滋, 佐々木 真, 永島 芳彦, 山﨑 広太郎, 糟谷 直宏, 小菅 佑輔, 藤澤 彰英, 伊藤 公孝, 伊藤 早苗
  • Organizer: 日本物理学会 2019年秋季大会
• [Presentation] 閉じ込めを左右するメゾスケール構造～乱流内の非線形結合～ (2018)
  • Author(s): 山田琢磨
  • Organizer: 東京大学 先端電力エネルギー・環境技術教育研究センター(APET)特別講演会
  • Invited
• [Presentation] PANTAにおける乱流の三次元構造 (2018)
  • Author(s): 山田琢磨, 稲垣滋, 佐々木真, 永島芳彦, 金史良, 挾間田一誠, 荒川弘之, 小林達哉, 山崎広太郎, 糟谷直宏, 小菅佑輔, 藤澤彰英, 伊藤公孝, 伊藤早苗
  • Organizer: 日本物理学会 2018年秋季大会
• [Presentation] Three Dimensional Structure of Streamer in Drift Wave Fluctuations (2018)
  • Author(s): T. Yamada, S. Inagaki, M. Sasaki, Y. Nagashima, F. Kin, H. Arakawa, T. Kobayashi, K. Yamasaki, N. Kasuya, Y. Kosuga, A. Fujisawa, K. Itoh, and S.-I. Itoh
  • Organizer: 2nd Asia-Pacific Conference on Plasma Physics
  • Int'l Joint Research / Invited
• [Presentation] PANTAにおけるストリーマーと媒介波の三次元構造 (2018)
  • Author(s): 山田琢磨, 稲垣滋, 佐々木真, 永島芳彦, 金史良, 挾間田一誠, 荒川弘之, 小林達哉, 山﨑広太郎, 糟谷直宏, 小菅佑輔, 藤澤彰英, 伊藤公孝, 伊藤早苗
  • Organizer: 日本物理学会 第73回年次大会
• [Book] 物理科学, この1年 2020 (2020)
  • Author(s): パリティ編集委員会、大槻 義彦
  • Total Pages: 166
  • Publisher: 丸善出版
  • ISBN: 9784621304860