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Kojima Atsushi  小島 有志

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KOJIMA Atsushi  小島 有志

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Researcher Number 50446449
Affiliation (Current) 2025: 国立研究開発法人量子科学技術研究開発機構, 那珂フュージョン科学技術研究所 先進プラズマ研究部, グループリーダー
2025: 国立研究開発法人量子科学技術研究開発機構, 那珂研究所 先進プラズマ研究部, グループリーダー
2025: 国立研究開発法人量子科学技術研究開発機構, 那珂研究所 ITERプロジェクト部, 上席研究員
Affiliation (based on the past Project Information) *help 2017: 国立研究開発法人量子科学技術研究開発機構, 那珂核融合研究所, 研究副主幹
2008 – 2009: Japan Atomic Energy Agency, 核融合研究開発部門, 任期付研究員
2007: Japan Atomic Energy Agency, 核融合研究開発部門, 博士研究員
2006 – 2007: 独立行政法人日本原子力研究開発機構, 核融合研究開発部門, 博士研究員
Review Section/Research Field
Principal Investigator
Nuclear fusion studies
Except Principal Investigator
Nuclear fusion studies
Keywords
Principal Investigator
Liビームプローブ / 輸送障壁 / 揺動計測 / 周辺プラズマ / トカマク / リチウムビームプローブ / 周辺輸送障壁 / リチウムビーム / プラズマ閉込め・安定性
Except Principal Investigator
ELM … More / シミュレーション / 中性粒子 / 核融合周辺プラズマ / プラズマ物理 / 分子活性化再結合 / 粒子シミュレーション / デッタチメントプラズマ / ダイバータ / 核癒合周辺プラズマ / ELMs / 電流分布測定 / 電子ビーム加熱型イオン源 / ゼーマン偏光分光 / 診断用リチウムビーム / 境界輸送障壁 / プラズマ閉じ込め / ゼーマン偏光 / リチウムビーム / Hモード / プラズマ閉じ込め・安定性 / 磁場核融合 Less
  • Research Projects

    (3 results)
  • Research Products

    (36 results)
  • Co-Researchers

    (19 People)
  •  Kinetic Modeling of Fusion Edge Plasma and Dynamic Characteristics of Detachemnt Plasmas

    • Principal Investigator
      Hatayama Akiyoshi
    • Project Period (FY)
      2015 – 2017
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Nuclear fusion studies
    • Research Institution
      Keio University
  •  Study of the edge transport barrier by using the lithium beam emission spectroscopy with high-temporal resolutionPrincipal Investigator

    • Principal Investigator
      KOJIMA Atsushi
    • Project Period (FY)
      2007 – 2009
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Nuclear fusion studies
    • Research Institution
      Japan Atomic Energy Agency
  •  Investigation on the edge structure of tokamak plasmas by edge current profile measurement with ultra-high spatial resolution

    • Principal Investigator
      FUJITA Takaaki
    • Project Period (FY)
      2005 – 2008
    • Research Category
      Grant-in-Aid for Scientific Research (S)
    • Research Field
      Nuclear fusion studies
    • Research Institution
      Japan Atomic Energy Agency

All 2017 2016 2015 2010 2009 2008 2007 2006

All Journal Article Presentation

  • [Journal Article] Analysis of the beam halo in negative ion sources by using 3D3V PIC code2016

    • Author(s)
      K. Miyamoto, S. Nishioka, I. Goto, A. Hatayama, M. Hanada, A. Kojima, J. Hiratsuka
    • Journal Title

      Rev. Sci. Instrum.

      Volume: 87 Issue: 2 Pages: 1-3

    • DOI

      10.1063/1.4932390

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-26400533, KAKENHI-PROJECT-15H04232
  • [Journal Article] Measurement of heat load density profile on acceleration grid in MeV-class negative ion accelerator2016

    • Author(s)
      J.Hiratsuka, M.Hanada, A.Kojima, N.Umeda, M.Kashiwagi, K.Miyamoto, M.Yoshida, R.Nishikiori, M.Ichikawa, K.Watanabe and H.Tobari
    • Journal Title

      Review of Scientific Instruments

      Volume: 87

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15H04232
  • [Journal Article] Development of a Lithium Beam Probe and Measurement of Density Pedestal in JT-60U2010

    • Author(s)
      Atshushi Kojima
    • Journal Title

      Plasma and Fusion Research 5

    • NAID

      130000309228

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19760603
  • [Journal Article] Development of a Lithium Beam Probe and Density Pedestal Measurement in JT-60U2010

    • Author(s)
      Atsushi Kojima, Kensaku KAMIYA, Takaaki FUJITA, 他4名
    • Journal Title

      Plasma Fusion Res 5

      Pages: 15-15

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19760603
  • [Journal Article] Effects of edge collisionality on ELM characteristics in the grassy ELM regime2010

    • Author(s)
      N. Oyama, A. Kojima, N. Aiba, 他7名
    • Journal Title

      Nucl. Fusion 50

      Pages: 64014-64014

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19760603
  • [Journal Article] Zeeman polarimetry measurement for edge current density determination using Li-beam probe on JT-60U2010

    • Author(s)
      K. Kamiya, T. Fujita, A. Kojima, H. Kubo
    • Journal Title

      Rev. Sci. Instrum 81

      Pages: 33502-33502

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19760603
  • [Journal Article] Fast Dynamics of Type I and Grassy ELMs in JT-60U2009

    • Author(s)
      A. Kojima, N. Oyama, Y. Sakamoto, Y. Kamada, 他5名
    • Journal Title

      Nucl. Fusion 49

      Pages: 115008-115008

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19760603
  • [Journal Article] Fast Dynamics of Type I and Grassy ELMs in JT-60U2009

    • Author(s)
      A. Kojima, N. Oyama, Y. Sakamoto, Y. Kamada, H. Urano, K. Kamiya, T. Fujita, H. Kubo and the JT-60 Team
    • Journal Title

      in Proc. 22nd IAEA Fusion Energy Conference 2008 (Geneva, 13-18 October 2008) (Vienna: IAEA)

    • Data Source
      KAKENHI-PROJECT-17106013
  • [Journal Article] Fast Dynamics of Type I and Grassy ELMs in JT-60U2009

    • Author(s)
      小島有志
    • Journal Title

      Proc. 22nd IAEA Fusion Energy Conference 2008

    • Data Source
      KAKENHI-PROJECT-17106013
  • [Journal Article] Development of a high-brightness and low-divergence lithium neutral beam for a Zeeman polarimetry on JT-60U2008

    • Author(s)
      小島有志
    • Journal Title

      Review of Scientific Instruments 79

      Pages: 93502-93502

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17106013
  • [Journal Article] Development of a high-brightness and low-divergence lithium neutral be am for a Zeeman polarimetry on JT-60U2008

    • Author(s)
      Atshushi Kojima
    • Journal Title

      Eeview of Scientific Instruments 79

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19760603
  • [Journal Article] Development of a high-brightness and low-divergence lithium neutral beam for a Zeeman polarimetry on JT-60U2008

    • Author(s)
      Atshushi Kojima, Kensaku Kamiya, Harukazu Iguchi, Takaaki Fujita, Hideto Kakiuchi, Yutaka Kamada
    • Journal Title

      Rev. Sci. Instrum 79

      Pages: 93502-93502

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19760603
  • [Journal Article] Development of a high-brightness and low-divergence lithium neutral beam for a Zeeman polarimetry on JT-60U2008

    • Author(s)
      A. Kojima, K. Kamiya, H. Iguchi, T. Fujita, H. Kakiuchi and Y. Kamada
    • Journal Title

      Rev. Sci. Instrum. 79巻

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17106013
  • [Journal Article] Numerical Simulation of a High-Brightness Lithium Ion Gun for a Zeeman Polarimetry on JT-60U2007

    • Author(s)
      小島有志
    • Journal Title

      Plasma and Fusion Research 2

    • NAID

      130002058993

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19760603
  • [Journal Article] Numerical Simulation of a High-Brightness Lithium Ion Gun for a Zeeman Polarimetry on JT-60U2007

    • Author(s)
      小島 有志
    • Journal Title

      Plasma and Fusion Research 2

    • NAID

      130002058993

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17106013
  • [Journal Article] Numerical Simulation of a High-Brightness Lithium Ion Gun for a Zeeman Polarimetry on JT-60U2007

    • Author(s)
      Atsushi Kojima, Kensaku KAMIYA, Harukazu IGUCHI, Takaaki FUJITA, Yutaka KAMADA
    • Journal Title

      Plasma Fusion Res 2

    • NAID

      130002058993

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19760603
  • [Journal Article] Numerical Simulation of a High-Brightness Lithium Ion Gun for a Zeeman Polarimetry on JT-60U2007

    • Author(s)
      A. Kojima, K. Kamiya, H. Iguchi, T. Fujita and Y. Kamada
    • Journal Title

      Plasma Fusion Res. 2巻

    • NAID

      130002058993

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17106013
  • [Journal Article] Numerical Simulation of a High-Brightness Lithium Ion Gun for a Zeeman Polarimetry on JT-60U2006

    • Author(s)
      小島 有志
    • Journal Title

      16th International Toki Conference予稿集

      Pages: 125-125

    • NAID

      130002058993

    • Data Source
      KAKENHI-PROJECT-17106013
  • [Journal Article] JT-60におけるゼーマン偏光計測のための高輝度リチウムイオン銃の開発2006

    • Author(s)
      小島 有志
    • Journal Title

      プラズマ・核融合学会第23回年会予稿集

      Pages: 287-287

    • Data Source
      KAKENHI-PROJECT-17106013
  • [Presentation] The Effect of Transport and Extraction of Non-Uniform Surface Produced H- in Large Multi-Aperture Negative Ion Sources2017

    • Author(s)
      S. Fujita, T. Yamamoto, M. Yoshida, M. Onai, A. Kojima, A. Hatayama
    • Organizer
      17th International Conference on Ion Sources
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15H04232
  • [Presentation] Analysis of the Spatial Non-Uniformity of Negative Ion Production in Surface-Produced Negative Ion Sources2016

    • Author(s)
      S. Fujita, T. Yamamoto, M. Yoshida, M. Onai, A. Kojima, A. Hatayama and M. Kashiwagi
    • Organizer
      5th International Symposium on Negative Ions, Beams and Sources
    • Place of Presentation
      Oxford(UK)
    • Year and Date
      2016-09-12
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15H04232
  • [Presentation] Study of Energy Relaxation Processes of the Surface Produced Negative Ions by Using 3D3V-PIC Simulation2016

    • Author(s)
      K. Miyamoto, I. Goto, S. Nishioka, A. Hatayama, J. Hiratsuka, M. Hanada, and A.Kojima
    • Organizer
      5th International Symposium on Negative Ions, Beams and Sources
    • Place of Presentation
      Oxford(UK)
    • Year and Date
      2016-09-12
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15H04232
  • [Presentation] Analysis of the beam halo in negative ion sources by using 3D3V PIC cod2015

    • Author(s)
      K.Miyamoto,S.Nishioka,I.Goto,A.Hatayama,M.Hanada,A.Kojima,and J.Hiratsuka
    • Organizer
      16th International Conference on Ion Sources
    • Place of Presentation
      New York ( USA)
    • Year and Date
      2015-08-22
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15H04232
  • [Presentation] Measurement of heat load density profile on acceleration grid in MeV-class negative ion accelerator2015

    • Author(s)
      J.Hiratsuka, M.Hanada, A.Kojima, N.Umeda, M.Kashiwagi, K.Miyamoto, M.Yoshida, R.Nishikiori, M.Ichikawa, K.Watanabe and H.Tobari
    • Organizer
      16th International Conference on Ion Sources
    • Place of Presentation
      New York ( USA)
    • Year and Date
      2015-08-22
    • Data Source
      KAKENHI-PROJECT-15H04232
  • [Presentation] JT-60Uにおけるリチウムビームプローブを用いた周辺密度分布の研究2008

    • Author(s)
      小島 有志
    • Organizer
      第25回プラズマ核融合学会年会
    • Place of Presentation
      宇都宮大学(宇都宮市)
    • Year and Date
      2008-12-02
    • Data Source
      KAKENHI-PROJECT-17106013
  • [Presentation] Fast dynamics of type I and grassy ELMs in JT-60U2008

    • Author(s)
      A. Kojima
    • Organizer
      22nd IAEA Fusion Energy Conference
    • Place of Presentation
      Geneva, Switzerland
    • Year and Date
      2008-10-17
    • Data Source
      KAKENHI-PROJECT-19760603
  • [Presentation] JT-60Uにおけるリチウムビームプローブを用いた周辺密度分布の研究2008

    • Author(s)
      小島有志
    • Organizer
      第25回プラズマ核融合学会年会
    • Place of Presentation
      栃木県宇都宮市
    • Year and Date
      2008-12-02
    • Data Source
      KAKENHI-PROJECT-17106013
  • [Presentation] JT-60Uにおけるリチウムビームプローブを用いた周辺密度分布の研究2008

    • Author(s)
      小島有志
    • Organizer
      第25回プラズマ・核融合学会年会 招待講演
    • Place of Presentation
      栃木県宇都宮市
    • Year and Date
      2008-12-02
    • Data Source
      KAKENHI-PROJECT-19760603
  • [Presentation] JT-60Uにおけるリチウムビームプローブを用いた周辺密度分布の研究2008

    • Author(s)
      小島有志
    • Organizer
      第25回プラズマ・核融合学会年会
    • Place of Presentation
      栃木県宇都宮市
    • Year and Date
      2008-12-02
    • Data Source
      KAKENHI-PROJECT-19760603
  • [Presentation] Fast Djraamics of Type I and Grassy ELMs in JT-60U2008

    • Author(s)
      Atshushi Kojima
    • Organizer
      22nd IAEA Fusion Energy Conference
    • Place of Presentation
      Geneva, Switzerland
    • Year and Date
      2008-10-17
    • Data Source
      KAKENHI-PROJECT-19760603
  • [Presentation] Fast dynamics of type I and grassy ELMs in JT-60U2008

    • Author(s)
      A. Kojima
    • Organizer
      22nd IAEA Fusion Energy Conference
    • Place of Presentation
      Geneva, Switzerland
    • Data Source
      KAKENHI-PROJECT-17106013
  • [Presentation] JT-60Uにおける周辺電流分布計測を目的とした高輝度低発散リチウムイオン銃の開発2007

    • Author(s)
      小島 有志
    • Organizer
      プラズマ・核融合学会第24回年会
    • Place of Presentation
      兵庫県姫路市
    • Year and Date
      2007-11-29
    • Data Source
      KAKENHI-PROJECT-17106013
  • [Presentation] JT-60Uにおける周辺電流分布計測を目的とした高輝度低発散リチウムイオン銃の開発2007

    • Author(s)
      小島有志
    • Organizer
      プラズマ・核融合学会第24回年会
    • Place of Presentation
      兵庫県姫路市
    • Year and Date
      2007-11-29
    • Data Source
      KAKENHI-PROJECT-19760603
  • [Presentation] JT-60Uにおける周辺電流分布計測を目的とした高輝度低発散リチウムイオン銃の開発2007

    • Author(s)
      小島有志
    • Organizer
      第24回プラズマ・核融合学会年会
    • Place of Presentation
      兵庫県姫路市
    • Year and Date
      2007-11-29
    • Data Source
      KAKENHI-PROJECT-19760603
  • [Presentation] JT-60Uにおけるゼーマン偏光計測のための高輝度リチウムイオン銃の開発2006

    • Author(s)
      小島 有志
    • Organizer
      第23回プラズマ核融合学会年会
    • Place of Presentation
      筑波大学(つくば市)
    • Year and Date
      2006-12-01
    • Data Source
      KAKENHI-PROJECT-17106013
  • [Presentation] Numerical Simulation of a High-Brightness Lithium Ion gun for a Zeeman Polarimetry on JT-60U2006

    • Author(s)
      A. Kojima
    • Organizer
      16th International Toki Conference
    • Place of Presentation
      Ceratopia Toki, Gifu, JAPAN
    • Data Source
      KAKENHI-PROJECT-17106013
  • 1.  IGUCHI Harukazu (40115522)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 2 results
  • 2.  OYAMA Naoyuki (80354596)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 1 results
  • 3.  SUZUKI Takahiro (60354594)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 4.  KAMADA Yutaka (30354567)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 3 results
  • 5.  FUJITA Takaaki (70354602)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 3 results
  • 6.  KAMIYA Kensaku (60360426)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 3 results
  • 7.  KUBO Hirotaka (40354584)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 1 results
  • 8.  MIURA Yukitoshi (60354586)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 9.  Hatayama Akiyoshi (10245607)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 5 results
  • 10.  Sawada Keiji (40262688)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 11.  Tsumori Katuyoshi (50236949)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 12.  Murakami Izumi (30290919)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 13.  Nakamura Hiroaki (30311210)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 14.  Nakashima Yousuke (00188939)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 15.  宮本 賢治 (00532996)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 5 results
  • 16.  林 伸彦 (10354573)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 17.  星野 一生 (50513222)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 18.  深野 あづさ (90259838)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 19.  Lettry Jacques
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results

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