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Nagaoka Kenichi  永岡 賢一

… Alternative Names

NAGAOKA Kenichi  永岡 賢一

永岡 賢一  ナガオカ ケンイチ

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Researcher Number 20353443
Other IDs
  • ORCIDhttps://orcid.org/0000-0002-5892-6047
Affiliation (Current) 2020: 核融合科学研究所, ヘリカル研究部, 教授
Affiliation (based on the past Project Information) *help 2014 – 2020: 核融合科学研究所, ヘリカル研究部, 准教授
2016: 核融合科学研究所, 大学共同利用機関等の部局等, 准教授
2011 – 2012: 核融合科学研究所, ヘリカル研究部, 助教
2007 – 2009: 核融合科学研究所, 大型ヘリカル研究部, 助教
2006: 核融合科学研究所, 大型ヘリカル研究部, 助手
2003 – 2004: 核融合科学研究所, 大型ヘリカル研究部, 助手
Review Section/Research Field
Principal Investigator
Plasma science / Astronomy / Nuclear fusion studies / Medium-sized Section 14:Plasma science and related fields
Except Principal Investigator
Plasma science / Nuclear fusion studies / Medium-sized Section 14:Plasma science and related fields
Keywords
Principal Investigator
乱流 / 電気対流 / 構造形成 / 回転 / ビーム光学 / 負イオンビーム / 方向性プローブ / プラズマ流 / 周辺輸送障壁 / プラズマ閉じ込め … More / プラズマ流速測定 / 自発的構造形成 / CHS / 対流 / 太陽対流層 / 液晶 / 流体力学 / 回転球殻 / 乱流拡散 / 磁化プラズマ / 天文学 / プラズマ / 輸送 / 対称性の破れ / 回転乱流 / 乱流構造形成 / 対称性 / 乱流輸送 / 対象性の破れ / 軸性ベクトル場 / スカラー場 / 高速イオン / 波動粒子相互作用 / アルベン波 / 磁場閉じ込め核融合 / 高エネルギー粒子 / 波動粒子相互作業 / アルベン固有モード / α加熱 / 高速イオン異常輸送 / 位相統計解析 / 水素負イオンビーム / RF負イオン源 / ビーム位相空間構造 / ビーム引き出し界面 / ペアプラズマ / ビーム引出界面 / ペッパーポットエミッタンスメータ / ファラデーカップアレイ / 非ガウスビーム成分 / イオン性ペアプラズマ / 準定常負イオン源 / 粒子ダイナミクス / 負イオンビーム引き出し界面 / 負イオンビーム界面 / ビーム光学安定性 … More
Except Principal Investigator
プラズマ・核融合 / 磁場閉じ込め核融合 / 磁気ノズル / プラズマ物理 / アルフベン固有モード / 高エネルギー粒子輸送 / 高速イオン異常輸送 / 波・粒子相互作用 / ビーム圧力 / MHD平衡・安定性 / ヘリカル / 磁場閉じ込め / 非等方圧力 / 惑星探査 / ロケット / 電気推進 / プラズマ推進 / プラズマ加速 / ラバールノズル / 負イオン源 / 中性粒子ビーム入射 / プラズマ加熱 / イオン性プラズマ / 負イオンダイナミクス / 負イオン / NBI / ペアイオンプラズマ / 中性粒子入射加熱装置 / イオン引き出し / 仕事関数 / プラズマ流 / 運動量輸送 / ディタッチメント Less
  • Research Projects

    (11 results)
  • Research Products

    (112 results)
  • Co-Researchers

    (36 People)
  •  Plasma momentum transport and detachment from a magnetic nozzleOngoing

    • Principal Investigator
      高橋 和貴
    • Project Period (FY)
      2019 – 2022
    • Research Category
      Grant-in-Aid for Scientific Research (A)
    • Review Section
      Medium-sized Section 14:Plasma science and related fields
    • Research Institution
      Tohoku University
  •  Beam extraction boundary physics and control of particle dynamics for steady state negative ion sourcesPrincipal InvestigatorOngoing

    • Principal Investigator
      永岡 賢一
    • Project Period (FY)
      2018 – 2022
    • Research Category
      Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))
    • Review Section
      Medium-sized Section 14:Plasma science and related fields
    • Research Institution
      National Institute for Fusion Science
  •  Investigation of boundary structure of ionic pair plasma and development of high perfomance negative ion beamPrincipal InvestigatorOngoing

    • Principal Investigator
      永岡 賢一
    • Project Period (FY)
      2017 – 2019
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Plasma science
    • Research Institution
      National Institute for Fusion Science
  •  Understanding a magnetic nozzle plasma flow dynamics and extension to a high power electric propulsion

    • Principal Investigator
      Ando Akira
    • Project Period (FY)
      2014 – 2017
    • Research Category
      Grant-in-Aid for Scientific Research (A)
    • Research Field
      Plasma science
    • Research Institution
      Tohoku University
  •  Exeprimental study of turbulence transport with symmetry breakingPrincipal Investigator

    • Principal Investigator
      Nagaoka Kenichi
    • Project Period (FY)
      2014 – 2016
    • Research Category
      Grant-in-Aid for Challenging Exploratory Research
    • Research Field
      Plasma science
    • Research Institution
      National Institute for Fusion Science
  •  Control of anomalous transport of fast ions via external control of Alfven eigenmodePrincipal Investigator

    • Principal Investigator
      Nagaoka Kenichi
    • Project Period (FY)
      2014 – 2016
    • Research Category
      Grant-in-Aid for Young Scientists (A)
    • Research Field
      Nuclear fusion studies
    • Research Institution
      National Institute for Fusion Science
  •  Investigation of negative ion extraction mechanism from a high-density ionic plasma

    • Principal Investigator
      Takeiri Yasuhiko
    • Project Period (FY)
      2013 – 2015
    • Research Category
      Grant-in-Aid for Scientific Research (A)
    • Research Field
      Nuclear fusion studies
    • Research Institution
      National Institute for Fusion Science
  •  Experimental simulation of large-scale flow field in solar convection zonePrincipal Investigator

    • Principal Investigator
      永岡 賢一
    • Project Period (FY)
      2011 – 2012
    • Research Category
      Grant-in-Aid for Challenging Exploratory Research
    • Research Field
      Astronomy
    • Research Institution
      National Institute for Fusion Science
  •  Interaction of Alfven eigen-mode on energetic-particles in helical systems.

    • Principal Investigator
      OSAKABE Masaki
    • Project Period (FY)
      2006 – 2009
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Plasma science
    • Research Institution
      National Institute for Fusion Science
  •  Effects of beam pressure on the MHD equilibria and stabilities in high beta helical plasmas

    • Principal Investigator
      WATANABE Kiyomasa
    • Project Period (FY)
      2006 – 2009
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Nuclear fusion studies
    • Research Institution
      National Institute for Fusion Science
  •  磁場閉じ込めプラズマの3次元速度場の構造と粘性に関する研究Principal Investigator

    • Principal Investigator
      永岡 賢一
    • Project Period (FY)
      2003 – 2004
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Plasma science
    • Research Institution
      National Institute for Fusion Science

All 2019 2018 2017 2016 2015 2014 2013 2012 2010 2009 2008 2007 2006 2004 Other

All Journal Article Presentation

  • [Journal Article] Caesiated H- source operation with helium2018

    • Author(s)
      Tsumori K.、Wada M.、Nakano H.、Kisaki M.、Ikeda K.、Haba Y.、Nagaoka K.、Kamio S.、Fujiwara Y.、Osakabe M.
    • Journal Title

      AIP Conference Proceedings

      Volume: 2052 Pages: 040015-040015

    • DOI

      10.1063/1.5083749

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-17H03002, KAKENHI-PROJECT-17H03512
  • [Journal Article] Development of a dual beamlet monitor system for negative ion beam measurements2018

    • Author(s)
      Haba Y.、Nagaoka K.、Tsumori K.、Kisaki M.、Nakano H.、Ikeda K.、Fujiwara Y.、Kamio S.、Yoshimura S.、Osakabe M.
    • Journal Title

      Review of Scientific Instruments

      Volume: 89 Pages: 123303-123303

    • DOI

      10.1063/1.5056260

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-17H03002
  • [Journal Article] Spatial Distributions of Charged Particles and Plasma Potential before and during Beam Extraction in a Negative Hydrogen Ion Source for NBI2017

    • Author(s)
      Shaofei GENG, Katsuyoshi TSUMORI, Haruhisa NAKANO, Masashi KISAKI, Yasuhiko TAKEIRI, Masaki OSAKABE, Katsunori IKEDA, Ken-ichi NAGAOKA, Osamu KANEKO, Masayuki SHIBUYA and NIFS NBI Group
    • Journal Title

      Plasma and Fusion Research

      Volume: 10 Issue: 0 Pages: 3405016-3405016

    • DOI

      10.1585/pfr.10.3405016

    • NAID

      130005302874

    • ISSN
      1880-6821
    • Year and Date
      2017-01-26
    • Language
      English
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Journal Article] Cavity Ringdown Technique for negative-hydrogen-ion measurement in ion source for neutral beam injector2016

    • Author(s)
      H. Nakano, K. Tsumori, M. Shibuya, S. Geng, M. Kisaki, K. Ikeda, K. Nagaoka, M. Osakabe, Y, Takeiri and O. Kaneko
    • Journal Title

      Journal of Instrumentation

      Volume: 11

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Journal Article] Charged particle flows in the beam extraction region of a negative ion source for NBI2016

    • Author(s)
      S. Geng, K. Tsumori, H. Nakano, M. Kisaki, K. Ikeda, M. Osakabe, K. Nagaoka, Y. Takeiri, M. Shibuya, and O. Kaneko
    • Journal Title

      Review of Scientific Instruments

      Volume: 87

    • DOI

      10.1063/1.4931796

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Journal Article] Negative ion production and beam extraction processes in a large ion source2016

    • Author(s)
      K. Tsumori, K. Ikeda, H. Nakano, M. Kisaki, S. Geng, M. Wada, K. Sasaki, S. Nishiyama, M. Goto, G.Serianni, P. Agostinetti, E. Sartori, M. Brombin, P. Veltri, C. Wimmer, K. Nagaoka, M. Osakabe, Y. Takeiri, and O. Kaneko
    • Journal Title

      Review of Scientific Instruments

      Volume: 87

    • DOI

      10.1063/1.4938254

    • Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Journal Article] Improvement of accelerator of negative ion source on the Large Helical Device2016

    • Author(s)
      M. Kisaki, K. Ikeda, M. Osakabe, K. Tsumori, H. Nakano, S. Geng, K. Nagaoka, O. Kaneko, and Y. Takeiri
    • Journal Title

      Review of Scientific Instruments

      Volume: 87

    • DOI

      10.1063/1.4936249

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Journal Article] Installation of Spectrally Selective Imaging System in RF Negative Ion Source2016

    • Author(s)
      K. Ikeda, D. Wunderlich, U. Fantz, B. Heinemann, M. Kisaki, K. Nagaoka, H. Nakano, M. Osakabe, K. Tsumori, O. Kaneko and Y. Takeiri
    • Journal Title

      Review of Scientific Instruments

      Volume: 87

    • DOI

      10.1063/1.4932987

    • Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Journal Article] Hydrogen atom temperature measured with wavelength- modulated laser absorption spectroscopy in large scale filament arc negative hydrogen ion source2015

    • Author(s)
      H. Nakano, S. Nishiyama, M. Goto, K. Tsumori, M. Kisaki, K. Ikeda, K. Nag aoka, M. Osakabe, Y. Takeiri, O. Kaneko, K. Sasaki
    • Journal Title

      AIP Conference Proceedings

      Volume: 1655 Pages: 020018-020018

    • DOI

      10.1063/1.4916427

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-24540529, KAKENHI-PROJECT-25800307, KAKENHI-PROJECT-25249134
  • [Journal Article] Laser photodetachment diagnostics of a 1/3-size negative hydrogen ion source for NBI2015

    • Author(s)
      S. Geng, K. Tsumori, H. Nakano, M. Kisaki, K. Ikeda, Y. Takeiri, M. Osakabe, K. Nagaoka, and O. Kaneko
    • Journal Title

      AIP Conference Proceedings

      Volume: 1655

    • DOI

      10.1063/1.4916456

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Journal Article] Evaluation of Negative Ion Distribution Changes by Image Processing Diagnostic2015

    • Author(s)
      K. Ikeda, H. Nakano, K. Tsumori, M. Kisaki, S. Geng, K. Nagaoka, Y. Takeiri, O. Kaneko
    • Journal Title

      AIP Conference Proceedings

      Volume: 1655

    • DOI

      10.1063/1.4916447

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Journal Article] Research progress on ionic plasmas generated in an intense hydrogen negative ion source2015

    • Author(s)
      Y. Takeiri, K. Tsumori, K. Ikeda, H. Nakano, M. Kisaki, K. Nagaoka, T. Tokuzawa, S. Geng, M. Osakabe, O. Kaneko, T. Kondo, M. Sato, M. Shibuya, S. Komada and H. Sekiguchi,
    • Journal Title

      AIP Conference Proceedings

      Volume: 1655

    • DOI

      10.1063/1.4916473

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Journal Article] Characteristic of plasma grid bias in large-scaled negative ion source2014

    • Author(s)
      M. Kisaki, K. Tsumori, K. Ikeda, H. Nakano, M. Osakabe, K. Nagaoka, Y. Takeiri and O. Kaneko
    • Journal Title

      Review of Scientific Instruments

      Volume: 85

    • DOI

      10.1063/1.4854295

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Journal Article] Development of spectrally selective imaging system for negative hydrogen ion source2014

    • Author(s)
      K. Ikeda, H. Nakano, K. Tsumori, M. Kisaki, K. Nagaoka, M. Osakabe, Y. Takeiri, and O. Kaneko
    • Journal Title

      Review of Scientific Instruments

      Volume: 85

    • DOI

      10.1063/1.4842318

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Journal Article] Visualization of H<sup>−</sup> Dynamics in Extraction Region of Negative-Ion Source by H<sub>α</sub> Imaging Spectroscopy2013

    • Author(s)
      Katsunori IKEDA, Haruhisa NAKANO, Katsuyoshi TSUMORI, Masashi KISAKI, Kenichi NAGAOKA, Masaki OSAKABE, Yasuhiko TAKEIRI and Osamu KANEKO
    • Journal Title

      Plasma and Fusion Research

      Volume: 8 Issue: 0 Pages: 1301036-1301036

    • DOI

      10.1585/pfr.8.1301036

    • NAID

      130003366292

    • ISSN
      1880-6821
    • Language
      English
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Journal Article] H- Density Profile Parallel to Plasma Grid in H- Source for Neutral Beam2013

    • Author(s)
      Nakano, H., Tsumori, K., Kisaki, M., Shibuya, M., Ikeda, K., Nagaoka, K., Osakabe, M., Kaneko, O., Asano, E., Kondo, T., Sato, M., Sekiguchi, H., Komada, S., and Takeiri, Y.
    • Journal Title

      Annual Report of National Institute for Fusion Science

      Volume: April 2012 - March 2013 Pages: 201-201

    • Data Source
      KAKENHI-PROJECT-25249134
  • [Journal Article] Polar Distribution of Ion and Electron Saturation Currents of Electro-Negative Plasma in Caesium-Seeded Negative Ion Source2013

    • Author(s)
      Tsumori, K., Nakano, H., Kisaki, M., Ikeda, K., Nagaoka, K., Osakabe, M., Takeiri, Y., Kaneko, O., Shibuya, M., Asano, E., Kondo, T., Sato, M., Sekiguchi and H., Komada, S.
    • Journal Title

      Annual Report of National Institute for Fusion Science

      Volume: April 2012 - March 2013 Pages: 202-202

    • Data Source
      KAKENHI-PROJECT-25249134
  • [Journal Article] Identification of the extraction structure of H- ions by Hα imaging spectroscopy2013

    • Author(s)
      K Ikeda, H Nakano, K Tsumori, M Kisaki, K Nagaoka, M Osakabe, Y Takeiri and O Kaneko
    • Journal Title

      New Journal of Physics

      Volume: 15

    • DOI

      10.1088/1367-2630/15/10/103026

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Journal Article] Operation Summary of Neutral Beam Injection System in the 16th Campaign2013

    • Author(s)
      Takeiri, Y., Tsumori, K., Osakabe, M., Ikeda, K., Nagaoka, K., Nakano, H., Kisaki, M., Asano, E., Kondo, T., Sato, M., Shibuya, M., Komada, S., Sekiguchi, H.
    • Journal Title

      Annual Report of National Institute for Fusion Science

      Volume: April 2012 - March 2013 Pages: 199-199

    • Data Source
      KAKENHI-PROJECT-25249134
  • [Journal Article] Fast-ion confinement studies on LHD2010

    • Author(s)
      M. Osakabe, M. Isobe, S. Murakami, S. Kobayashi, K. Saito, R. Kumazawa, T. Mutoh, T. Ozaki, M. Nishiura, E. Veshev, T. Seki, Y. Takeiri, O. Kaneko, K. Nagaoka, T. Tokuzawa, K. Ogawa, K. Toi, S. Yamamoto, M. Sasao, T. Watanabe, LHD experiment group
    • Journal Title

      to appear in the LHD special issue of Fusion Science and Technology 58,(9pages)

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18340189
  • [Journal Article] Fast-ion confinement studies on LHD2010

    • Author(s)
      M.Osakabe, Y.Takeiri, K.Nagaoka, 他
    • Journal Title

      Fusion Science and Technology 58(掲載確定, To be publish ed)

      Pages: 9-9

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18340189
  • [Journal Article] Evaluation of fast-ion confinement using radially injected neutral beam on LHD2010

    • Author(s)
      M.Osakabe, K.Nagaoka, Y.Takeiri, 他
    • Journal Title

      Plasma and Fusion Research 5(掲載確定, To be publish ed)

      Pages: 4-4

    • NAID

      130000669032

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18340189
  • [Journal Article] Local observations offast ion responses to energetic particle modesusing a directional probe in the Compact HelicalSystem (CHS)2008

    • Author(s)
      K. Nagaoka, M. Isobe, K. Toi, K. Goto, T. Ito, Y. Todo, M. Osakabe, S. Ohshima, A. Shimizu, A. Fujisawa, H. Nakano, Y. Takeiri, K.Y. Watanabe, T. Akiyama, Y. Yoshimura, C. Suzuki, S. Nishimura, K. Matsuoka, S. Okamura and the CHS experimental group
    • Journal Title

      Nucl. Fusion 48巻

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18360445
  • [Journal Article] Fast ion measurement using a hybrid directional probe in the large helical device2008

    • Author(s)
      K. Nagaoka, K. Y. Watanabe, M. Osakabe, Y. Takeiri, et.al.
    • Journal Title

      Rev. Sci. Instrum 79

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18340189
  • [Journal Article] Radial Transport Characteristics of Fast Ions Due to Energetic-Particle Modes inside the Last Closed-Flux Surface in the Compact Helical System2008

    • Author(s)
      K. Nagaoka, M. Isobe, K. Toi, A. Shimizu, A. Fujisawa, S. Ohshima, H. Nakano, M. Osakabe, Y. Todo, et.al.
    • Journal Title

      Phys. Rev. Lettres 100

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18340189
  • [Journal Article] Fast ion measurement using a hybrid directional probe in the large helical device2008

    • Author(s)
      K. Nagaoka, K.Y. Watanabe, M. Osakabe, Y. Takeiri, et. al.
    • Journal Title

      Rev. Sci. Instrum. 79

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18340189
  • [Journal Article] Fast ion charge exchange spectroscopy measurement using a radially injected neutral beam on the large helical device2008

    • Author(s)
      M. Osakabe, S. Murakami, M. Yoshinuma, K. Ida, A. Whiteford, M. Goto, D. Kato, T. Kato, K. Nagaoka, T. Tokuzawa, Y. Takeiri, et. al.
    • Journal Title

      Rev. Sci. Instrum. 79

    • NAID

      120006653838

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18340189
  • [Journal Article] Local observations of fast ion responses to energetic particle modes using a directional probe in the Compact Helical System (CHS)2008

    • Author(s)
      K. Nagaoka, M. Isobe, K. Toi, K. Goto, T. Ito, Y. Todo, M. Osakabe, S. Ohshima, A. Shimizu, A. Fujisawa, H. Nakano, Y. Takeiri, et. al.
    • Journal Title

      Nuclear Fusion 48

      Pages: 84006-84006

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18340189
  • [Journal Article] Local observations of fast ion responses to energetic particle modes using a directional probe in the Compact Helical System (CHS)2008

    • Author(s)
      K. Nagaoka, M. Isobe, K. Toi, K. Goto, T.Ito, Y. Todo, M. Osakabe, S. Ohshima, A.Shimizu, A. Fujisawa, H. Nakano, Y.Takeiri, et.al.
    • Journal Title

      Nuclear Fusion 48

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18340189
  • [Journal Article] Fast ion charge exchange spectroscopy measurement using a radially injected neutral beam on the large helicaldevice2008

    • Author(s)
      M. Osakabe, S. Murakami, M.Yoshinuma, K. Ida, A. Whiteford, M.Goto, D. Kato, T. Kato, K. Nagaoka, T.Tokuzawa, Y. Takeiri, et.al.
    • Journal Title

      Rev. Sci. Instrum 79

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18340189
  • [Journal Article] Radial Transport Characteristics of Fast Ions Due to Energetic Particle Modes inside Last Closed Flux Surface in the Compact Helical System2008

    • Author(s)
      K. Nagaoka, 他
    • Journal Title

      Phys.Rev.Letters 100

      Pages: 65005-65005

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18340189
  • [Journal Article] Local observations of fast ion responses to energetic particle modes using a directional probe in the Compact Helical System (CHS)2008

    • Author(s)
      K.Nagaoka, M.Isobe, K.Toi, K.Goto, T.Ito, Y.Todo, M.Osakabe, S.Ohshima, A.Shimizu, A.Fujisawa, H.Nakano, Y.Takeiri, K.Y.Watanabe, T.Akiyama, Y.Yoshimura, C.Suzuki, S.Nishimura, K.Matsuoka, S.Okamura, the CHS experimental group
    • Journal Title

      Nuclear Fusion 48巻

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18360445
  • [Journal Article] Fastion measurement using a hybrid directional probe in the large helical device2008

    • Author(s)
      K. Nagaoka, 他
    • Journal Title

      Review of Scientific Instruments 79

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18340189
  • [Journal Article] Radial Transport Characteristics of Fast Ions Due to Energetic-Particle Modes inside the Last Closed-Flux Surface in the Compact Helical System2008

    • Author(s)
      K. Nagaoka, M. Isobe, K. Toi, A. Shimizu, A. Fujisawa, S. Ohshima, H. Nakano, M. Osakabe, Y. Todo, et. al.
    • Journal Title

      Phys. Rev. Lettres 100

      Pages: 65005-65005

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18340189
  • [Journal Article] Calibrations of Fast Ion Flux Measurement Using a Hybrid Directional Probe2007

    • Author(s)
      K. Nagaoka, et. al.
    • Journal Title

      Plasma Fusion Res. vol.2

    • NAID

      130002058981

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18360445
  • [Journal Article] Experimental observations of enhanced radial transport of Energetic Particles with Alfven Eigen mode on LHD2006

    • Author(s)
      M. Osakabe, S. Yamamoto, K. Toi, Y.Takeiri, S. Sakakibara, K. Nagaoka, et.al.
    • Journal Title

      Nuclear Fusion 46

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18340189
  • [Journal Article] Experimental observations of enhanced radial transport of Energetic Particles with Alfven Eigen mode on LHD2006

    • Author(s)
      M. Osakabe, S. Yamamoto, K. Toi, Y. Takeiri, S. Sakakibara, K. Nagaoka, et. al.
    • Journal Title

      Nuclear Fusion 46

      Pages: 917-916

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18340189
  • [Journal Article] Hybrid Probe Measurement of Peripheral Plasma on CHS2004

    • Author(s)
      Kenichi Nagaoka, et al.
    • Journal Title

      Proceedings of 31^<st> European Physics Society Conference on Plasma Physics

      Pages: 5-110

    • Data Source
      KAKENHI-PROJECT-15740333
  • [Presentation] 負イオンビームレット安定性の実験的評価2019

    • Author(s)
      波場泰昭, 永岡賢一, 津守克嘉, 木﨑雅志, 中野治久, 池田勝則, 吉村信次, 長壁正樹
    • Organizer
      日本物理学会年次大会
    • Data Source
      KAKENHI-PROJECT-18KK0080
  • [Presentation] Development of a new beamlet monitor system:Time resolution and phase space structure2018

    • Author(s)
      Y. Haba, K. Nagaoka, K. Tsumori, M. Kisaki, H. Nakano, K. Ikeda, Y. Fujiwara, S. Kamio, S. Yoshimura, and M. Osakabe
    • Organizer
      International symposium on Negativev ion beams and sources
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17H03002
  • [Presentation] プラズマ加熱用負イオンビームの位相空間構造の実験的評価2018

    • Author(s)
      波場泰昭、永岡賢一、他
    • Organizer
      第73回日本物理学会年会
    • Data Source
      KAKENHI-PROJECT-17H03002
  • [Presentation] 負イオンビームレット安定性の実験的評価2018

    • Author(s)
      波場泰昭, 永岡賢一, 津守克嘉, 木﨑雅志, 中野治久, 池田勝則, 吉村信次, 長壁正樹
    • Organizer
      日本物理学会年会
    • Data Source
      KAKENHI-PROJECT-17H03002
  • [Presentation] 負イオンビームプロファイルの高時間分解能計2018

    • Author(s)
      波場泰昭, 永岡賢一, 津守克嘉, 木﨑雅志, 中野治久, 池田勝則, 吉村信次, 長壁正樹
    • Organizer
      プラズマ核融合学会
    • Data Source
      KAKENHI-PROJECT-17H03002
  • [Presentation] Experimental observation of phase space structure of negative hydrogen ion beam for plasma heating2017

    • Author(s)
      Y. Haba, K. Nagaoka, el tl.,
    • Organizer
      International Toki Conference 2017
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17H03002
  • [Presentation] 液晶電気対流を用いた回転乱流の拡散特性2017

    • Author(s)
      堀田彩、永岡賢一、吉村信次、日高芳樹、寺坂健一郎、小澤直也
    • Organizer
      物理学会2016年度春季
    • Place of Presentation
      大阪大学
    • Year and Date
      2017-03-17
    • Data Source
      KAKENHI-PROJECT-26610194
  • [Presentation] Experimental observation of phase space structure of negative hydrogen ion beam for plasma heating2017

    • Author(s)
      Y. Haba, K. Nagaoka, el tl.,
    • Organizer
      Plasma Conference 2017
    • Data Source
      KAKENHI-PROJECT-17H03002
  • [Presentation] ヘリオトロンJにおけるECH/ECCDを用いた高エネルギー粒子励起MHD不安定性の制御2017

    • Author(s)
      長﨑百伸, 山本聡, 國分大, 小林進二, 岡田浩之, 門信一郎, 南貴司, 大島慎介, 木島滋, 釼持尚輝,明, 多和田斉興, 白波瀬一貴, 野﨑勇樹, 望月聡一郎, 飯村幹, 山田晃生, 中村祐司, 石澤明宏, G. M. Weir, 永岡賢一, 水内亨
    • Organizer
      日本物理学会年次大会
    • Place of Presentation
      大阪
    • Year and Date
      2017-03-17
    • Data Source
      KAKENHI-PROJECT-26709071
  • [Presentation] Experimental Study of Turbulent Transport and the Effect of Rotation in an Eelectro-Convection2016

    • Author(s)
      K. Nagaoka, S. Yoshimura, S. Hotta, N. Ozawa, Y. Hidaka, K. Maeda, K. Terasaka, S. Ohshima, T. Kobayashi, M. Kubo, R. Ishikawa and N. Yokoi
    • Organizer
      East-Asia School and Workshop on Laboratory, Space, and Astrophysical Plasmas
    • Place of Presentation
      Tsukuba
    • Year and Date
      2016-07-11
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26610194
  • [Presentation] 系の回転が乱流スペクトルと乱流輸送に与える影響2016

    • Author(s)
      永岡賢一、吉村信次、小林達哉、日高芳樹、前田和也、寺坂健一郎、大島慎介
    • Organizer
      日本天文学会
    • Place of Presentation
      首都大学東京
    • Year and Date
      2016-03-14
    • Data Source
      KAKENHI-PROJECT-26610194
  • [Presentation] 高周波負イオンビーム源開発へ向けたフィラメント放電中RFシース生成・制御実験2016

    • Author(s)
      増澤慶汰,佐々木佑晃,高橋和貴,中野治久,永岡賢一, 小室淳史,安藤晃,津守克嘉
    • Organizer
      第33回プラズマ核融合学会 年会
    • Place of Presentation
      東北大学 (宮城県,仙台市)
    • Year and Date
      2016-11-29
    • Data Source
      KAKENHI-PROJECT-26247096
  • [Presentation] アルベン固有モードと相互作用する高速イオンの位相空間構造の実験観測2016

    • Author(s)
      永岡賢一、長壁正樹、磯部光孝、小川国大、神尾修治、小林進二、山本聡、大島慎介、水内了、J.M,Fotdecaba, E. Ascasibar
    • Organizer
      プラズマ核融合学会
    • Place of Presentation
      仙台
    • Year and Date
      2016-11-29
    • Data Source
      KAKENHI-PROJECT-26709071
  • [Presentation] 乱流拡散への回転の影響の実験観測2016

    • Author(s)
      永岡 賢一, 堀田 彩, 吉村 信次, 日高 芳樹, 前田 和也, 小澤 直也, 寺坂 健一郎, 大島 慎介, 小林 達哉
    • Organizer
      日本物理学会(秋)
    • Place of Presentation
      東京
    • Year and Date
      2016-09-13
    • Data Source
      KAKENHI-PROJECT-26610194
  • [Presentation] Experimental Evaluation of Energy Transfer between Fast Ions and Alfven Eigenmodes2016

    • Author(s)
      K. Nagaoka, M. Osakabe, M. Isobe, K. Ogawa, Y. Suzuki, M. Shibuya, S. Kobayashi, S. Yamamoto, Y. Miyoshi, Y. Katoh, J.M. Fontdecaba
    • Organizer
      Annual meeting of American Physical Society, Division of Plasma Physics
    • Place of Presentation
      San Jose, CA, USA
    • Year and Date
      2016-10-31
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26709071
  • [Presentation] イメージング計測を用いた大型RF水素負イオン源引出領域の研究2015

    • Author(s)
      池田勝則, WUNDERLICH Dirk, 木崎雅志, 津守克嘉, 中野治久, 永岡賢一, GENG Shaofei, 長壁正樹, FANTZ Ursel, 金子修, 竹入康彦
    • Organizer
      第32回プラズマ・核融合学会 年会
    • Place of Presentation
      名古屋
    • Year and Date
      2015-11-24
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Installation of Spectrally Selective Imaging System in RF Negative Ion Source2015

    • Author(s)
      K. Ikeda, D. Wunderlich, U. Fantz, B. Heinemann, M. Kisaki, K. Nagaoka, H. Nakano, M. Osakabe, K. Tsumori, O. Kaneko and Y. Takeiri
    • Organizer
      the 16th International Conference on Ion Sources
    • Place of Presentation
      New York, USA
    • Year and Date
      2015-09-23
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Development of millimeter-wave interferometer for electron density measurements with beam extraction in the negative ion source2015

    • Author(s)
      T. Tokuzawa, M. Kisaki, K. Nagaoka, K. Tsumori, K. Ikeda, H. Nakano, S. Geng, M. Osakabe, Y. Takeiri, and O. Kaneko
    • Organizer
      25th International Toki Conference
    • Place of Presentation
      Toki Gifu, Japan
    • Year and Date
      2015-11-03
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] NIFS-R&Dイオン源での統合的負イオンプラズマ計測2015

    • Author(s)
      K. Tsumori, S. Geng, K. Ikeda, H. Nakano, M. Kisaki, M. Wada, K. Sasaki, S. Nishiyama, G. Serianni, C. Wimmer, P. Agosttineti, E. Sartori, M. Brombin, K. Nagaoka, M. Osakabe, Y. Takeiri, O. Kaneko and NIFS NBI group
    • Organizer
      第32回プラズマ・核融合学会 年会
    • Place of Presentation
      名古屋
    • Year and Date
      2015-11-24
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Depth of Influence on the Plasma by Beam Extraction in a Negative Hydrogen Ion Source for NBI2015

    • Author(s)
      S. Geng, K. Tsumori, H. Nakano, M. Kisaki, K. Ikeda, M. Osakabe, K. Nagaoka, Y. Takeiri, M. Shibuya, and O. Kaneko
    • Organizer
      25th International Toki Conference
    • Place of Presentation
      Toki Gifu, Japan
    • Year and Date
      2015-11-03
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Charged Particle Flows in the Beam Extraction Region of a Negative Hydrogen Ion Source for NBI2015

    • Author(s)
      S. Geng, K. Tsumori, H. Nakano, M. Kisaki, K. Nagaoka, K. Ikeda, Y. Takeiri, M. Shibuya and O. Kaneko
    • Organizer
      the 16th International Conference on Ion Sources
    • Place of Presentation
      New York, USA
    • Year and Date
      2015-09-23
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Wave-particle interaction analyser for study of Alfven eigenmodes in the Large Helical Device2015

    • Author(s)
      K. Nagaoka, M. Osakabe, M. Isobe, K. Ogawa, Y. Suzuki, M. Shibuya, S. Kobayashi, S. Yamamoto, Y. Miyoshi, Y. Katoh, J. M. Fontdecaba
    • Organizer
      International Stellarator/Heliotron Workshop
    • Place of Presentation
      Greifswald, Germany
    • Year and Date
      2015-10-05
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26709071
  • [Presentation] Response of charged particle flows to the extraction field in a negative hydrogen ion source for NBI2015

    • Author(s)
      S. Geng, K. Tsumori, H. Nakano, M. Kisaki, K. Ikeda, M. Osakabe, K. Nagaoka, Y. Takeiri, M. Shibuya, and O. Kaneko
    • Organizer
      第32回プラズマ・核融合学会 年会
    • Place of Presentation
      名古屋
    • Year and Date
      2015-11-24
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Measurement of Phase Space Structure of Fast Ions Interacting with Alfven Eigenmodes2015

    • Author(s)
      K. Nagaoka, M. Osakabe, M. Isobe, K. Ogawa, Y. Suzuki, S. Kobayashi, S. Yamamoto, Y. Miyoshi, Y. Katoh, J. M. Fontdecaba
    • Organizer
      IAEA Technical Meeting on Energetic Particles in Magnetic Confinement Systems
    • Place of Presentation
      VIENNA, Austria
    • Year and Date
      2015-09-01
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26709071
  • [Presentation] 液晶電気対流による乱流の構造 と輸送現象についての研究2015

    • Author(s)
      日高芳樹, 前田和也, 永岡賢一, 吉村信次, 寺坂健一郎, 岡部弘高, 原一広
    • Organizer
      2015年日本液晶学会討論会
    • Place of Presentation
      東工大
    • Year and Date
      2015-09-05
    • Data Source
      KAKENHI-PROJECT-26610194
  • [Presentation] Recent Studies of Hydrogen Negative Ion Source and Beam Production for NBI in Large Helical Device2015

    • Author(s)
      K. Ikeda, P. Agostinetti, M. Brombin, U. Fantz, S. Geng, O. Kaneko, M. Kisaki, K. Nagaoka, H. Nakano, M. Osakabe, E. Sartori,G. Serianni, Y. Takeiri, K. Tsumori, P. Veltri, C. Wimmer, and D. Wunderlich
    • Organizer
      The 25th International Toki Conference
    • Place of Presentation
      Toki Gifu, Japan
    • Year and Date
      2015-11-03
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Negative Ion Production and Beam Extraction Processes in a Large Ion Source2015

    • Author(s)
      K. Tsumori, K. Ikeda, H. Nakano, M. Kisaki, S. Geng, M. Wada, K. Sasaki, S. Nishiyama, M. Goto, G. Serianni, P. Agostinetti, E. Sartori, M. Brombin, P. Veltri, C. Wimmer, K. Nagaoka, M. Osakabe, Y. Takeiri, and O. Kaneko
    • Organizer
      the 16th International Conference on Ion Sources
    • Place of Presentation
      New York, USA
    • Year and Date
      2015-09-23
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Experimental Measurement of Phase Space Structure of Fast Ions Interacting with Alfven Eigenmodes2015

    • Author(s)
      K. Nagaoka
    • Organizer
      5th East-Asia School and Workshop on Laboratory, Space, and Astrophysical plasmas
    • Place of Presentation
      POSTECH, Pohang, Korea
    • Year and Date
      2015-08-17
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26709071
  • [Presentation] Behavior of Negative Hydrogen Ion and Its Beam by Bias and Beam Extraction Voltages2015

    • Author(s)
      H. Nakano, K.Tsumori, M. Kisaki, K. Ikeda, K. Nagaoka, M. Osakabe, Y. Takeiri and O. Kaneko
    • Organizer
      The 68th Gaseous Electronics Conference, the 9th International Conference on Reactive Plasmas and the 33rd Symposium on Plasma Processing
    • Place of Presentation
      Honolulu, U.S.A.
    • Year and Date
      2015-10-12
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Measurement of Phase Space Structure of Fast Ions Interacting with Alfven Eigenmode2015

    • Author(s)
      K.Nagaoka, M. Osakabe, M. Isobe, K. Ogawa, Y. Suzuki, S. Kobayashi,S. Yamamoto, Y. Miyoshi, Y. Katoh,J.M.Fontdecaba, M. Shibuya
    • Organizer
      57th Meeting of APS Division of Plasma Physics Meeting
    • Place of Presentation
      Savannah, Georgia, USA
    • Year and Date
      2015-11-16
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26709071
  • [Presentation] High-Performance of Negative-Ion-Based Neutral Beam Injectors for Extension of Plasma Parameter Regime in Large Helical Device2013

    • Author(s)
      Y. Takeiri, K. Tsumori, M. Osakabe, K. Ikeda, K. Nagaoka, H. Nakano, M. Kisaki, E. Asano, T. Kondo, M. Sato, M. Shibuya, S. Komada, H. Sekiguchi, O. Kaneko, V. Antoni, G. Serianni, and P. Agostinetti
    • Organizer
      Joint 19th International Stellarator/Heliotron Workshop and 16th IEA-RFP Workshop
    • Place of Presentation
      Centro Culturale San Gaetano, Padova, Italy
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] 波長変調レーザー吸収分光法による水素負イオ ン源内の水素原子温度計測2013

    • Author(s)
      中野治久, 西山修輔, 後藤基志, 津守克嘉, 木崎雅志, 池田勝則, 渋谷真之, 永岡賢一, 長壁正樹, 浅野英児, 近藤友紀, 佐藤守, 関口温朗, 竹入康彦, 金子修, 佐々木浩一
    • Organizer
      プラズマ・核融合学会第30回年会
    • Place of Presentation
      東京工業大学(東京都目黒区)
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Characteristics of Electrohydrodynamic Convection Driven Turbulence and Laboratory Simulation Project of the Solar Convection Zone2013

    • Author(s)
      K. Nagaoka
    • Organizer
      12th Asia Pasific Physics Conference (APPC12)
    • Place of Presentation
      Makuhari, Japan
    • Data Source
      KAKENHI-PROJECT-23654072
  • [Presentation] H- Density Behavior for Positive and Negative Extraction and Bias Voltages2013

    • Author(s)
      Haruhisa Nakano, Katsuyoshi Tsumori, Masashi Kisaki, Masayuki Shibuya, Katsunori Ikeda, Kenichi Nagaoka, Masaki Osakabe, Osamu Kaneko, Eiji Asano, Tomoaki Kondo, Mamoru Sato, Haruro Sekiguchi, Seiji Komada, and Yasuhiko Takeiri
    • Organizer
      The 15th International Conference on Ion Sources
    • Place of Presentation
      Makuhari Messe, Chiba, Japan
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] 負イオン源の電極バイアス特性2013

    • Author(s)
      木崎雅志、津守克嘉、池田勝則、中野治久、長壁正樹、永岡賢一、竹入康彦、金子修
    • Organizer
      プラズマ・核融合学会第30回年会
    • Place of Presentation
      東京工業大学(東京都目黒区)
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Development and Physics of Negative Ion Sources for LHD NBI2013

    • Author(s)
      K. Tsumori, H. Nakano, K. Ikeda, M. Kisaki, M. Osakabe, K. Nagaoka, Y. Takeiri, NIFS NBI group, T, Fukuyama, S. Nishioka, T, Shibata, and A. Hatayama
    • Organizer
      55th Annual Meeting of the APS Division of Plasma Physics
    • Place of Presentation
      Sheraton Denver Downtown Hotel, Denver, Colorado, USA
    • Invited
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Turbulence experiment with high controllability in a rotating system for dynamo physics2012

    • Author(s)
      Kenichi Nagaoka, Shinji Yoshimura Hideaki Miura, Youhei Masada, Shoichi Kai, Yoshiki Hidaka, Kenichiro Terasaka
    • Organizer
      APS-DPP
    • Place of Presentation
      RI, USA
    • Data Source
      KAKENHI-PROJECT-23654072
  • [Presentation] Turbulence experiment with high controllability in a rotating system for dynamo physics2012

    • Author(s)
      K. Nagaoka
    • Organizer
      Division of Plasma Physics, American Physical Society
    • Place of Presentation
      Providence, RI, USA
    • Data Source
      KAKENHI-PROJECT-23654072
  • [Presentation] 回転乱流中の流れ場生成 -太陽対流層模擬実験-2012

    • Author(s)
      永岡賢一
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      横浜国立大学
    • Data Source
      KAKENHI-PROJECT-23654072
  • [Presentation] 回転乱流 中の流れ場生成 -太陽対流層模擬実験 -2012

    • Author(s)
      永岡賢一、吉村信次、三浦英昭、常田佐 久、久保雅仁、横井喜充、政田洋平、甲斐 昌一、日高芳樹、寺坂健一郎
    • Organizer
      日本物理学会2012 年秋季大会
    • Place of Presentation
      横浜国大(横浜)
    • Data Source
      KAKENHI-PROJECT-23654072
  • [Presentation] Electrohydrodynamic convection driven turbulence in a rotating system and laboratory simulation of the solar convective zone2012

    • Author(s)
      K. Nagaoka, S. Yoshimura, Y. Masada, S. Kai, Y. Hidaka, N. Yokoi, S. Tsuneta, M. Kubo, K. Terasaka, H. Miura
    • Organizer
      22nd Int. Toki Conf.
    • Place of Presentation
      土岐
    • Data Source
      KAKENHI-PROJECT-23654072
  • [Presentation] 回転球殻乱流場における大規模流れ場生成実験2012

    • Author(s)
      永岡賢一、 吉村信次、吉沼幹朗、常田 佐久、久保雅仁、石川遼子、横井喜充、政 田洋平、日高芳樹、甲斐昌一
    • Organizer
      日本天文学会
    • Place of Presentation
      龍谷大学(京都)
    • Data Source
      KAKENHI-PROJECT-23654072
  • [Presentation] Electrohydrodynamic convection driven turbulence in a rotating system and laboratory simulation of the solar convective zone2012

    • Author(s)
      K. Nagaoka
    • Organizer
      22rd International Toki
    • Place of Presentation
      Toki city, Japan
    • Data Source
      KAKENHI-PROJECT-23654072
  • [Presentation] 回転する乱流中の速度場形成2012

    • Author(s)
      永岡賢一、吉村信次、三浦英昭、常田佐 久、久保雅仁、横井喜充、政田洋平、甲斐 昌一、日高芳樹、寺坂健一郎
    • Organizer
      プラズマ・核融合学会第29回年会
    • Place of Presentation
      春日
    • Data Source
      KAKENHI-PROJECT-23654072
  • [Presentation] 回転する乱流中の速度場形成2012

    • Author(s)
      永岡賢一
    • Organizer
      プラズマ・核融合学会年会
    • Place of Presentation
      福岡県春日市
    • Data Source
      KAKENHI-PROJECT-23654072
  • [Presentation] 回転球殻乱流場における大規模流れ場生成実験2012

    • Author(s)
      永岡賢一 、吉村信次 、吉沼幹朗、常田佐久、久保雅仁、石川遼子、横井喜充 、政田洋平、日高芳樹、甲斐昌一
    • Organizer
      日本天文学会
    • Place of Presentation
      龍谷大学
    • Data Source
      KAKENHI-PROJECT-23654072
  • [Presentation] Clump and Hole formation in the energetic particle spectra by the TAE and their behaviours during the mode activities on LHD2009

    • Author(s)
      M.Osakabe, Y.Takeiri, K.Nagaoka, 他
    • Organizer
      第11回高エネルギー粒子に関するLAEA専門家会議
    • Place of Presentation
      キエフ(ウクライナ)
    • Year and Date
      2009-09-21
    • Data Source
      KAKENHI-PROJECT-18340189
  • [Presentation] Fastion measurement using a hybrid directional probe in the large helical device2008

    • Author(s)
      K. Nagaoka, 他。
    • Organizer
      高温プラズマ計測会議
    • Place of Presentation
      アルバカーキ(米国)
    • Year and Date
      2008-05-13
    • Data Source
      KAKENHI-PROJECT-18340189
  • [Presentation] Fast ion measurement using a hybrid directional probe in the large helical device2008

    • Author(s)
      K. Nagaoka, 他
    • Organizer
      第17回高温プラズマ計測会議
    • Place of Presentation
      アルバカーキ(米国)
    • Data Source
      KAKENHI-PROJECT-18340189
  • [Presentation] 方向性プローブ法を用いた高速インの定量的評価法2007

    • Author(s)
      永岡 賢一
    • Organizer
      日本物理学会2007年秋季大会
    • Place of Presentation
      北海道大学
    • Year and Date
      2007-09-24
    • Data Source
      KAKENHI-PROJECT-18360445
  • [Presentation] Local Observation of Energetic Particle Mode Bursts and Fast Ion Responses in the Compact Helical System2007

    • Author(s)
      K.Nagaoka, 他
    • Organizer
      第10回高エネルギー粒子に関するIAEA 専門家会議
    • Place of Presentation
      クロスターゼーオン(ドイツ)
    • Data Source
      KAKENHI-PROJECT-18340189
  • [Presentation] Local Observation of Energetic Particle Mode Bursts and Fast Ion Responses in the Compact Helical System2007

    • Author(s)
      K. Nagaoka, 他
    • Organizer
      第10回高エネルギー粒子に関するIAEA専門家会議
    • Place of Presentation
      クロスターゼーオン(ドイツ)
    • Data Source
      KAKENHI-PROJECT-18340189
  • [Presentation] Beamlet Tilting due to Electron Deflection Magnet

    • Author(s)
      K. Tsumori, G. Serianni, P. Vertri, M. Kisaki, Y. Takeiri, M. Brombin, P. Agostinetti, A. Vanni,K. Ikeda, G. Shaofei, H. Nakano, M. Osakabe, K. Nagaoka, M. Shibuya, T. Kondo, M. Sato, A. Sekiguchi, S. Komada
    • Organizer
      第10回エネルギー連合講演会
    • Place of Presentation
      つくば国際会議場、つくば市
    • Year and Date
      2014-06-19 – 2014-06-20
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] 高エネルギー粒子とアルベン波の 相互作用の計測

    • Author(s)
      永岡賢一, 長壁正樹、磯部光孝、小川国大、斎藤健二、三好由純、加藤雄人、小林進二、山本聡 、大島慎介 、LHD実験グループ
    • Organizer
      日本物理学会年次大会
    • Place of Presentation
      早稲田大学
    • Year and Date
      2015-03-21 – 2015-03-24
    • Data Source
      KAKENHI-PROJECT-26709071
  • [Presentation] A New Experimental Approach to Turbulent Transport in Complex Systems

    • Author(s)
      K. Nagaoka, S. Yoshimura, Y. Masada, Y. Hidaka, N. Yokoi, S. Tsuneta, M. Kubo, R. Ishikawa, K. Terasaka, H. Miura
    • Organizer
      日本地球惑星科学連合 2014
    • Place of Presentation
      パシフィコ横浜、横浜市
    • Year and Date
      2014-04-28 – 2014-05-02
    • Invited
    • Data Source
      KAKENHI-PROJECT-26610194
  • [Presentation] &#61548;Hydrogen Atom Temperature measured with Wavelength-Modulated Laser Absorption Spectroscopy in Lage Scale Filament Arc Negative Hydrogen Ion Source

    • Author(s)
      H. Nakano, S. Nishiyama, M. Goto, K. Tsumori, M. Kisaki, K. Ikeda, K. Nagaoka, 
M. Osakabe, Y. Takeiri, O. Kaneko and K. Sasaki
    • Organizer
      The 4th International Symposium on Negative Ions, Beams and Sources
    • Place of Presentation
      IPP Garching, Germany
    • Year and Date
      2014-10-06 – 2014-10-10
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Spatial distribution of electron density in large-scaled negative ion source

    • Author(s)
      1. M. Kisaki*, K. Tsumori, K. Ikeda, H. Nakano, S. Geng, K. Nagaoka, T. Tokuzawa, M. Osakabe, Y. Takeiri, O. Kaneko
    • Organizer
      The 4th International Symposium on Negative Ions, Beams and Sources
    • Place of Presentation
      IPP Garching, Germany
    • Year and Date
      2014-10-06 – 2014-10-10
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Pproduction and extraction processes of H- ions in a large scaled negative ion source

    • Author(s)
      K. Tsumori, H. Nakano, M. Kisaki, S. Geng, K. Ikeda, K. Nagaoka, M. Osakabe, Y. Takeiri, O. Kaneko
    • Organizer
      The 16th International conference on Ion Sources
    • Place of Presentation
      New York, USA
    • Year and Date
      2015-08-23 – 2015-08-28
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Laser photodetachment diagnostics of a 1/3-size negative hydrogen ion source for NBI

    • Author(s)
      S. Geng, K. Tsumori, H. Nakano, M. Kisaki, K. Ikeda, Y. Takeiri, M. Osakabe, K. Nagaoka, and O. Kaneko
    • Organizer
      The 4th International Symposium on Negative Ions, Beams and Sources
    • Place of Presentation
      IPP Garching, Germany
    • Year and Date
      2014-10-06 – 2014-10-10
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Observation of Stabilizing Effect of Electron Cyclotron Heating on Fast-Ion-Driven Alfvén Eigenmodes

    • Author(s)
      K. Nagaoka, E. Ascasíbar, T. Ido, T. Kobayashi, A. Cappa, S. Yamamoto, K. Nagasaki, M. Osakabe, S. Ohshima, A. Shimizu, T. Estrada and Y. Takeiri
    • Organizer
      4th Asia Pacific Transport Working Group
    • Place of Presentation
      Kyusyu Univ.
    • Year and Date
      2014-06-10 – 2014-06-13
    • Invited
    • Data Source
      KAKENHI-PROJECT-26709071
  • [Presentation] Characteristic of Plasma Grid Bias in Large-Scaled Negative Ion Source

    • Author(s)
      M. Kisaki, K. Tsumori, K. Ikeda, H. Nakano, M. Osakabe, K. Nagaoka, Y. Takeiri and O. Kaneko
    • Organizer
      The 15th International Conference on Ion Sources
    • Place of Presentation
      Makuhari Messe, Chiba, Japan
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] 回転流体中の乱流輸送の基礎実験

    • Author(s)
      永岡 賢一, 吉村 信次, 日高 芳樹, 寺坂 健一郎, 小林 達哉, 横井 喜充, 政田 洋平, 三浦 英昭, 久保 雅仁, 石川 遼子
    • Organizer
      Plasma Conference 2014
    • Place of Presentation
      朱鷺メッセ、新潟市
    • Year and Date
      2014-11-18 – 2014-11-21
    • Data Source
      KAKENHI-PROJECT-26610194
  • [Presentation] Research progress on ionic plasmas generated in an intense hydrogen negative ion source

    • Author(s)
      Y. Takeiri, K. Tsumori, K. Ikeda, H. Nakano, M. Kisaki, K. Nagaoka, T. Tokuzawa, S. Geng, M. Osakabe, O. Kaneko, T. Kondo, M. Sato, M. Shibuya, S. Komada and H. Sekiguchi
    • Organizer
      The 4th International Symposium on Negative Ions, Beams and Sources
    • Place of Presentation
      IPP Garching, Germany
    • Year and Date
      2014-10-06 – 2014-10-10
    • Invited
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Characteristics of Cso and Cs+ in Extraction Region of a Negative Ion Source for NBI

    • Author(s)
      K. Tsumori, H. Nakano, M. Kisaki, G. Shaofei, K. Ikeda, K.Nagaoka, M. Osakabe, Y. Takeiri, O. Kaneko, M. Shibuya, and NIFS NBI Group
    • Organizer
      Plasma Conference 2014
    • Place of Presentation
      朱鷺メッセ、新潟市
    • Year and Date
      2014-11-18 – 2014-11-21
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Response of Plasma in Extraction Region to Electrostatic Field

    • Author(s)
      K. Tsumori, M. Kisaki, K. Ikeda, H. Nakano, M. Osakabe, K. Nagaoka, Y. Takeiri, and O. Kaneko, M. Shibuya, E. Asano, T. Kondo, M. Sato, H. Sekiguchi and S. Komada.
    • Organizer
      The 15th International Conference on Ion Sources
    • Place of Presentation
      Makuhari Messe, Chiba, Japan
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Evaluation of negative ion distribution changes by image processing diagnostic

    • Author(s)
      K. Ikeda, H. Nakano, K. Tsumori, M. Kisaki, S. Geng, K. Nagaoka, T. Tokuzawa, M. Osakabe, Y. Takeiri, and O.
    • Organizer
      The 4th International Symposium on Negative Ions, Beams and Sources
    • Place of Presentation
      IPP Garching, Germany
    • Year and Date
      2014-10-06 – 2014-10-10
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Optical Observation of Reduction Structure of H- Ions at Extraction Region in Hydrogen Negative Ion Source

    • Author(s)
      K. Ikeda, H. Nakano, K. Tsumori, M. Kisaki, K. Nagaoka, M. Osakabe, Y. Takeiri, and O. Kaneko
    • Organizer
      The 15th International Conference on Ion Sources
    • Place of Presentation
      Makuhari Messe, Chiba, Japan
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] 多孔型負イオン源から引き出されたマルチビームレットの相互作用

    • Author(s)
      1. 木崎雅志、津守克嘉、池田勝則、中野治久、S. Geng、P. Veltri、P. Agostinetti、M. Brombin、G. Serianni、長壁正樹、永岡賢一、竹入康彦、金子修
    • Organizer
      第10回核融合エネルギー連合講演会
    • Place of Presentation
      つくば国際会議場、つくば市
    • Year and Date
      2014-06-19 – 2014-06-20
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Beamlet Tilting due to Magnetic Field in Beam Accelerator of NBI Source

    • Author(s)
      K. Tsumori, G. Serianni, P. Veltri, M. Kisaki, Y. Takeiri, M. Brombin, P. Agostinetti, K. Ikeda, G. Shaofei, H. Nakano, K. Nagaoka, M. Osakabe, V. Antoni, and NIFS-NBI Group.
    • Organizer
      The 4th International Symposium on Negative Ions, Beams and Sources
    • Place of Presentation
      IPP Garching, Germany
    • Year and Date
      2014-10-06 – 2014-10-10
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] &#61548;水素負イオン源の引出領域における温度と密度分布

    • Author(s)
      中野治久、津守克嘉, 池田勝則, 木崎雅志, S. Geng, 渋谷真之, 永岡賢一, 長壁正樹, 竹入康彦, 金子修
    • Organizer
      日本物理学会第70回年次大会
    • Place of Presentation
      早稲田大学、東京
    • Year and Date
      2015-03-21 – 2015-03-24
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Spatial Distribution of Negative Hydrogen Ions in the Extraction Region of a Negative Hydrogen Ion Source for NBI

    • Author(s)
      Shaofei Geng, Katsuyoshi Tsumori, Haruhisa Nakano, Masashi Kisaki, Yasuhiko Takeiri, Masaki Osakabe, Katsunori Ikeda, Ken-ichi Nagaoka, Osamu Kaneko and Masayuki Shibuya
    • Organizer
      Plasma Conference 2014
    • Place of Presentation
      朱鷺メッセ、新潟市
    • Year and Date
      2014-11-18 – 2014-11-21
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Evaluation of H- behavior using a spectrally selective imaging method in hydrogen negative ion source

    • Author(s)
      K. Ikeda, H. Nakano, K. Tsumori, M. Kisaki, K. Nagaoka, M. Osakabe, Y. Takeiri, O. Kaneko
    • Organizer
      European Physical Society Conferences on Plasma Physics 2014
    • Place of Presentation
      Berlin, Germany
    • Year and Date
      2014-06-23 – 2014-06-27
    • Data Source
      KAKENHI-PROJECT-25249134
  • [Presentation] Direct measurement of wave-particle interactions between energetic ions and Alfven wave in laboratory plasmas

    • Author(s)
      K. Nagaoka, M. Osakabe, M. Isobe, K. Ogawa, K. Saito, Y. Miyoshi and Y. Kato
    • Organizer
      5th East-Asia School and Workshop on Laboratory, Space, and Astrophysical plasmas
    • Place of Presentation
      POSTECH, Korea
    • Year and Date
      2015-08-17 – 2015-08-22
    • Invited
    • Data Source
      KAKENHI-PROJECT-26709071
  • [Presentation] Spatial distributions of charged particles and plasma potential before and during beam extraction in a negative hydrogen ion source for NBI

    • Author(s)
      Shaofei GENG, Katsuyoshi TSUMORI, Haruhisa NAKANO, Masashi KISAKI, Yasuhiko TAKEIRI, Masaki OSAKABE, Katsunori IKEDA, Ken-ichi NAGAOKA, Osamu KANEKO, Masayuki SHIBUYA
    • Organizer
      The 24th International Toki Conference
    • Place of Presentation
      Toki, Japan
    • Year and Date
      2014-11-04 – 2014-11-07
    • Data Source
      KAKENHI-PROJECT-25249134
  • 1.  OSAKABE Masaki (90280601)
    # of Collaborated Projects: 4 results
    # of Collaborated Products: 71 results
  • 2.  高橋 和貴 (80451491)
    # of Collaborated Projects: 4 results
    # of Collaborated Products: 1 results
  • 3.  TAKEIRI Yasuhiko (60179603)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 61 results
  • 4.  Ando Akira (90182998)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 1 results
  • 5.  NAKANO Haruhisa (90442524)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 51 results
  • 6.  KISAKI Masashi (70598945)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 49 results
  • 7.  TODO Yasushi (00249971)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 4 results
  • 8.  WATANABE Kiyomasa (00249963)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 9.  SAKAKIBARA Satoru (90280594)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 10.  SUZUKI Yasuhiro (20397558)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 2 results
  • 11.  MATSUMOTO Yutaka (40360929)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 12.  GOTO Motoshi (00290916)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 3 results
  • 13.  SDEKI Ryouske (80581066)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 14.  HIDAKA Yoshiki (70274511)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 7 results
  • 15.  TERASAKA Kenichiro (50597127)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 7 results
  • 16.  MASADA Yohei (30590608)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 2 results
  • 17.  YOSHIMURA Shinji (50311204)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 7 results
  • 18.  KOBAYASHI Shinji (70346055)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 8 results
  • 19.  MIYOSHI Yoshizumi (10377781)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 6 results
  • 20.  TSUMORI Katsuyoshi (50236949)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 50 results
  • 21.  IKEDA Katsunori (20321614)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 49 results
  • 22.  HATAYAMA Akiyoshi (10245607)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 1 results
  • 23.  TOKUZAWA Tokihiko (90311208)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 5 results
  • 24.  山本 聡 (70397529)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 3 results
  • 25.  國中 均 (60234465)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 26.  小室 淳史 (70733137)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 1 results
  • 27.  鷹尾 祥典 (80552661)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 28.  宮本 賢治 (00532996)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 29.  HOTTA Sayaka
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 3 results
  • 30.  COOPER W.A.
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 31.  PUSTOVITOV V.
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 32.  Ascasibar Enrique
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 1 results
  • 33.  NISHIYAMA Syusuke
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 1 results
  • 34.  渡邊 清政
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 2 results
  • 35.  佐々木 浩一
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 1 results
  • 36.  和田 元
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 1 results

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