Nagaoka Kenichi 永岡賢一

… Alternative Names

Researcher Number	20353443
Other IDs	https://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 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

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] 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] 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

Nagaoka Kenichi 永岡 賢一

NAGAOKA Kenichi 永岡 賢一

永岡 賢一 ナガオカ ケンイチ

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Co-Researchers

Plasma momentum transport and detachment from a magnetic nozzleOngoing

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Beam extraction boundary physics and control of particle dynamics for steady state negative ion sourcesPrincipal InvestigatorOngoing

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Investigation of boundary structure of ionic pair plasma and development of high perfomance negative ion beamPrincipal InvestigatorOngoing

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Understanding a magnetic nozzle plasma flow dynamics and extension to a high power electric propulsion

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Exeprimental study of turbulence transport with symmetry breakingPrincipal Investigator

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Control of anomalous transport of fast ions via external control of Alfven eigenmodePrincipal Investigator

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Investigation of negative ion extraction mechanism from a high-density ionic plasma

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Experimental simulation of large-scale flow field in solar convection zonePrincipal Investigator

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Interaction of Alfven eigen-mode on energetic-particles in helical systems.

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Effects of beam pressure on the MHD equilibria and stabilities in high beta helical plasmas

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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

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[Journal Article] Caesiated H- source operation with helium2018

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[Journal Article] Development of a dual beamlet monitor system for negative ion beam measurements2018

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Nagaoka Kenichi 永岡賢一

NAGAOKA Kenichi 永岡賢一

永岡賢一ナガオカケンイチ