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Cs-free high beam current density hydrogen negative ion source using nanoporous electrides

Research Project

Project/Area Number 19H01883
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 14020:Nuclear fusion-related
Research InstitutionNational Institute for Fusion Science

Principal Investigator

Nakano Haruhisa  核融合科学研究所, ヘリカル研究部, 准教授 (90442524)

Co-Investigator(Kenkyū-buntansha) 笹尾 真実子  同志社大学, 研究開発推進機構, 研究員 (00144171)
安藤 晃  東北大学, 工学研究科, 教授 (90182998)
木崎 雅志  核融合科学研究所, ヘリカル研究部, 助教 (70598945)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2021: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2020: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Keywords負イオン源 / C12A7エレクトライド / 表面生成 / Csフリー水素負イオン源 / 中性粒子ビーム入射装置 / 中性粒子入射装置
Outline of Research at the Start

水素負イオン源は核融合科学分野のみならず大型/医療用加速器分野でも利用されており、マイクロエレクトロニクス分野でも利用が検討されている。しかし、何れの分野でも添加するセシウム(Cs)の取り扱いやメンテナンス性が大きな問題となっている。最近、我々は、独自に着目した新材料C12A7エレクトライドが、従来のCs被覆金属に匹敵する水素負イオン(H-)生成性能を持つ可能性があることを示した。本研究では、このC12A7エレクトライドを用いて、従来の水素負イオン源に匹敵するビーム性能を持つ、Csフリーかつメンテナンスフリーの水素負イオン源の実現可能性を検証する。

Outline of Final Research Achievements

The feasibility of a cesium-free negative hydrogen ion source using C12A7 electride with a low work function was conducted. Approximately 14 times higher negative hydrogen ion beam current was observed in the Compact ECR ion source (30 W discharge power) using C12A7 electride compared to molybdenum. The negative ion production effect of C12A7 electride was also confirmed in a higher power 1.2 kW inductively coupled discharge. The work function decreased when C12A7 electride was exposed to hydrogen plasma with a positive bias. Calculations based on the two-collision model indicate that the negative ions were mainly produced by backscattering (reflection) processes on the C12A7 surface, and the energy spectra were in good agreement with the experimental results.

Academic Significance and Societal Importance of the Research Achievements

C12A7エレクトライドは化学合成・分解・触媒や電子源としての開発研究や性能評価が行われていたが、本研究では水素負イオン生成面として着目したものである。C12A7エレクトライドは水素雰囲気中で仕事関数が増加する性質を持つ一方、水素プラズマ曝露により仕事関数が減少することも示した。
セシウムフリー水素負負イオン源は大型加速器やホウ素中性子捕捉療法等の医療用加速器にも応用できるものであり、本研究を基にした研究の発展は社会的インパクトを与えるものである。

Report

(4 results)
  • 2022 Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (57 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (5 results) Journal Article (17 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 17 results,  Open Access: 16 results) Presentation (35 results) (of which Int'l Joint Research: 29 results)

  • [Int'l Joint Research] Aix-Marseille University(フランス)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Max Planck Institute for Plasma Physics(ドイツ)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Max Plank Institute for Plasma Physics/Universitaet Augsburg(ドイツ)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Aix-MarseilleUniversite(フランス)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Max Planck Institute for Plasma Physics(ドイツ)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Numerical study of different electron density observed in Hydrogen and Deuterium ion source plasmas2022

    • Author(s)
      T Shibata, R Kato, H Nakano, K Hayashi, J Sato, K Miyamoto,K Hoshino, and A Hatayama
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 2244 Issue: 1 Pages: 012002-012002

    • DOI

      10.1088/1742-6596/2244/1/012002

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Numerical analysis of isotope effect in NIFS negative ion source2022

    • Author(s)
      Ryo Kato, Kazuo Hoshino, Haruhisa Nakano, Takanori Shibata, Kenji Miyamoto, Kengo Iwanaka, Katsuya Hayashi, Akiyoshi Hatayama
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 2244 Issue: 1 Pages: 012035-012035

    • DOI

      10.1088/1742-6596/2244/1/012035

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Study of negative ion beam emittance characteristic using 3D PIC-MCC simulation2022

    • Author(s)
      K. Miyamoto, K. Nagaoka, A. Hatayama, K. Hoshino, H. Nakano, T.Shibata, K. Tsumori
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 2244 Issue: 1 Pages: 012040-012040

    • DOI

      10.1088/1742-6596/2244/1/012040

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Beam instability in the vicinity of beam extraction region of negative ion source2022

    • Author(s)
      Nagaoka K.、Nakamoto R.、Sasaki T.、Hamajima T.、Nakano H.、Ikeda K.、Fujiwara Y.、Osakabe M.、Takeiri Y.、Tsumori K.
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 2244 Issue: 1 Pages: 012043-012043

    • DOI

      10.1088/1742-6596/2244/1/012043

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Probe measurement of an ECR hydrogen plasma facing the C12A7 electride surface2022

    • Author(s)
      Bito K.、Sasao M.、Wada M.
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 2244 Issue: 1 Pages: 012048-012048

    • DOI

      10.1088/1742-6596/2244/1/012048

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comparison of ion source plasma responses to extraction grid bias between hydrogen and deuterium operations in NIFS-RNIS2022

    • Author(s)
      Nakano H、Masaki S、Rattanawongnara E、Tsumori K、Ikeda K、Hamajima T、Nagaoka K、Osakabe M
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 2244 Issue: 1 Pages: 012046-012046

    • DOI

      10.1088/1742-6596/2244/1/012046

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Study of the charged particle flow near the plasma grid in negative ion source2022

    • Author(s)
      Masaki S.、Nakano H.、Rattanawongnara E.、Nagaoka K.、Ikeda K.、Fujiwara Y.、Osakabe M.、Wada M.、Tsumori K.
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 2244 Issue: 1 Pages: 012059-012059

    • DOI

      10.1088/1742-6596/2244/1/012059

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Difference of co-extracted electron current and beam acceleration in a negative ion source with hydrogen-isotope ions2022

    • Author(s)
      Ikeda K.、Tsumori K.、Nakano H.、Nagaoka K.、Takeiri Y.、Masaki S.、Rattanawongnara E.、Osakabe M.
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 2244 Issue: 1 Pages: 012060-012060

    • DOI

      10.1088/1742-6596/2244/1/012060

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Analysis of electron behaviour around a spring-shape filament inside a low-energy electron gun2022

    • Author(s)
      Matsumoto Y、Nakano H、Kisaki M、Shinto K、Sasao M、Wada M
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 2244 Issue: 1 Pages: 012084-012084

    • DOI

      10.1088/1742-6596/2244/1/012084

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Abundance ratio of multiple velocity distribution components in a single negative ion beamlet produced by a cesium-seeded negative ion source2022

    • Author(s)
      Haba Yasuaki、Aramaki Mitsutoshi、Tsumori Katsuyoshi、Osakabe Masaki、Ikeda Katsunori、Nakano Haruhisa、Nagaoka Kenichi
    • Journal Title

      AIP Advances

      Volume: 12 Issue: 3 Pages: 035223-035223

    • DOI

      10.1063/5.0083300

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Work function behavior of a biased C12A7 electride in low temperature hydrogen plasmas2021

    • Author(s)
      Heiler A.、Friedl R.、Fantz U.、Nocentini R.、Sasao M.
    • Journal Title

      AIP Conference Proceedings

      Volume: 2373 Pages: 020004-020004

    • DOI

      10.1063/5.0057482

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Plasma electrode shape suitable for plasma electrode performance study2021

    • Author(s)
      Bito K.、Sasao M.、Kisaki M.、Wada M.
    • Journal Title

      AIP Conference Proceedings

      Volume: 2373 Pages: 030006-030006

    • DOI

      10.1063/5.0057489

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Validation of the distribution of stripping loss neutrals in the accelerator of the negative ion source2021

    • Author(s)
      Ikeda K.、Kisaki M.、Nakano H.、Tsumori K.、Nagaoka K.、Fujiwara Y.、Masaki S.、Rattanawongnara E.、Osakabe M.
    • Journal Title

      AIP Conference Proceedidngs

      Volume: 2373 Pages: 0600011-0600018

    • DOI

      10.1063/5.0057443

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Damage to N-NBI systems due to positive ion back-streaming2021

    • Author(s)
      Wada M.、Kenmotsu T.、Ikeda K.、Kisaki M.、Nakano H.、Tsumori K.
    • Journal Title

      AIP Conference Proceedings

      Volume: 2373 Pages: 080001-080001

    • DOI

      10.1063/5.0057427

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of the directional Langmuir probe for the charged particle flow measurement2021

    • Author(s)
      Masaki S.、Nakano H.、Kisaki M.、Rattanawongnara E.、Nagaoka K.、Ikeda K.、Fujiwara Y.、Osakabe M.、Tsumori K.
    • Journal Title

      AIP Conference Proceedidngs

      Volume: 2373 Pages: 0900031-0900037

    • DOI

      10.1063/5.0058837

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A compact electron cyclotron resonance negative hydrogen ion source for evaluation of plasma electrode materials2020

    • Author(s)
      Eguchi Takayuki、Sasao Mamiko、Shimabukuro Yuji、Ikemoto Fumiya、Kisaki Masashi、Nakano Haruhisa、Tsumori Katsuyoshi、Wada Motoi
    • Journal Title

      Review of Scientific Instruments

      Volume: 91 Issue: 1 Pages: 013508-013508

    • DOI

      10.1063/1.5128610

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Deuterium experiment with large-scale negative ion source for large helical device2020

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

      Japanese Journal of Applied Physics

      Volume: 59 Issue: SH Pages: SHHC09-SHHC09

    • DOI

      10.35848/1347-4065/ab80a7

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] C12A7エレクトライドを用いたkW級RF水素負イオン源の初期結果2022

    • Author(s)
      中野治久, 清水星弥, 斎藤健二, 笹尾真実子, 尾藤圭太, 和田元, 安藤晃
    • Organizer
      物理学会 第77会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 水素原子・分子イオンと低仕事関数材料との相互作用2022

    • Author(s)
      西脇万由子, 山岡人志, 笹尾真実子, 東海樹弘, 尾藤圭太, 中野治久, 津守克嘉, 和田元
    • Organizer
      第14回核融合エネルギー連合講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Work function measurement of plasma electrode materials for negative ion sources using semiconductor light sources2022

    • Author(s)
      Mayuko Nishiwaki, Mamiko Sasao, Motoi Wada, Haruhisa Nakano, Katsuyoshi Tsumori
    • Organizer
      The 22nd International Vacuum Congress
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dynamic responses of negative ion meniscus to externally ap- plied RF field2022

    • Author(s)
      Kenichi Nagaoka, Haruhisa Nakano, Katsunori Ikeda, Katsuyoshi Tsumori, Masaki Osakabe, Masashi Kisaki, Ryoya Nakamoto, Taiga Hamajima, Yasuhiko Takeiri
    • Organizer
      The 8th International symposium on Negative Ions, Beams and Sources
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Photoelectric current measurement of plasma grid materials for a compact H- ion source2022

    • Author(s)
      Mayuko Nishiwaki, Haruhisa Nakano, Katsuyoshi Tsumori, Mamiko Sasao, Motoi Wada
    • Organizer
      The 8th International symposium on Negative Ions, Beams and Sources
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Plasma Electrode Materials for Cs-free Negative hydrogen ion Sources2022

    • Author(s)
      Mamiko Sasao, Motoi Wada, Gilles Cartry
    • Organizer
      The 8th International symposium on Negative Ions, Beams and Sources
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Langmuir-probe measurement in the vicinity of plasma grid aper- ture of hydrogen negative ion source2022

    • Author(s)
      Engrhyt rattanawongnara, Katsunori Ikeda, Kenichi Nagaoka, Masaki Osakabe, Nakano Haruhisa, Tsumori Katsuyoshi, Yasuhiko Takeiri
    • Organizer
      The 8th International symposium on Negative Ions, Beams and Sources
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Construction of a Filament-RF driven hybrid negative ion source at NIFS2022

    • Author(s)
      Katsuyoshi Tsumori, Katsunori Ikeda, Haruhisa Nakano, Yasuhiko Takeiri, Kenji Saito, Engryht Rattanawongnara, Ken-ichi Nagaoka, Pierluigi Veltri, Werner Kraus, Stefan Briefi, Bernd Heinemann, Ursel Fantz, Masaki Osakabe
    • Organizer
      The 8th International symposium on Negative Ions, Beams and Sources
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Negative and positive ion density in front of negative ion produc- tion surface in large-scaled negative ion source for fusion2022

    • Author(s)
      Haruhisa Nakano, Shingo Masaki, Katsuyoshi Tsumori, Masaki Osakabe, Katsunori Ikeda, Yasuhiko Takeiri, Engrhyt Rattanawongnara, Kenichi Nagaoka
    • Organizer
      The 8th International symposium on Negative Ions, Beams and Sources
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] NIFS負イオン源におけるプラズマ輸送過程の評価2022

    • Author(s)
      岩中健悟, 塩谷岳大, 星野一生, 中野治久, 柴田崇統, 宮本賢治
    • Organizer
      第39回 プラズマ・核融合学会 年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Difference of Co-Extracted Electron Current and Beam Acceleration in a Negative Ion Source with Hydrogen-Isotope Ions2021

    • Author(s)
      Katsunori Ikeda, Katsuyoshi Tsumori, Haruhisa Nakano,Kenichi Nagaoka, Yutaka Fujiwara, Yasuhiko Takeiri, Shingo Masaki, Engrhyt Rattanawongnara, Masaki Osakabe
    • Organizer
      The 19th International Conference on Ion Sources
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of RF Electric Field on Beam Focusing in Negative Ion Source Plasma2021

    • Author(s)
      Taiga Hamajima, Ryoya Nakamoto, Kenichi Nagaoka, Haruhisa Nakano, Engrhyt Rattanawongnara, Katsuyoshi Tsumori, Katsunori Ikeda, Masashi Kisaki, Shingo Masaki, Kenji Miyamoto, Masaki Osakabe, Kazunori Takahashi, Shinji Yoshimura
    • Organizer
      The 19th International Conference on Ion Sources
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Study of Negative Ion Beam Emittance Characteristics Using 3D PIC-MCC Simulation2021

    • Author(s)
      Kenji Miyamoto, Akiyoshi Hatayama, Kenichi Nagaoka, Katsuyoshi Tsumori, Kazuo Hoshino, Nakano Haruhisa, Takanori Shibata
    • Organizer
      The 19th International Conference on Ion Sources
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Beam Instability in the Vicinity of Beam Extraction Region of Negative Ion Source2021

    • Author(s)
      Kenichi Nagaoka, Haruhisa Nakano, Katsuyoshi Tsumori, Katsunori Ikeda, Masaki Osakabe, Masashi Kisaki, Ryoya Nakamoto, Shinji Yoshimura, Taiga Hamajima, Toru Sasaki, Yutaka Fujiwara (Nat
    • Organizer
      The 19th International Conference on Ion Sources
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Numerical Study of Different Electron Density Observed in a Hydrogen and Deuterium Negative Ion Source Plasma2021

    • Author(s)
      Takanori Shibata, Ryo Kato, Haruhisa Nakano, Katsuya Hayashi, Jo Sato, Kenji Miyamoto, Kazuo Hoshino, Akiyoshi Hatayama
    • Organizer
      The 19th International Conference on Ion Sources
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Numerical Analysis of Isotope Effect in NIFS Negative Ion Source2021

    • Author(s)
      Ryo Kato, Kazuo Hoshino, Haruhisa Nakano, Takanori Shibata, Kenji Miyamoto, Kengo Iwanaka, Katsuya Hayashi, Akiyoshi Hatayama
    • Organizer
      The 19th International Conference on Ion Sources
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Study of the Charged Particle Flow near the Plasma Grid in Negative Ion Source2021

    • Author(s)
      Shingo Masaki, Haruhisa Nakano, Engrhyt Rattanawongnara, Kenichi Nagaoka, Katsunori Ikeda, Yutaka Fujiwara Masaki Osakabe, Motoi Wada, Katsuyoshi Tsumori
    • Organizer
      The 19th International Conference on Ion Sources
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optimization of Cathode Settings in a Low-Energy Electron Gun to Develop a Diagnostic Tool for H- Ion Source Plasmas2021

    • Author(s)
      Yoshikatsu Matsumoto, Haruhisa Nakano, Masashi Kisaki, Katsuhiro Shinto, Mamiko Sasao, Motoi Wada
    • Organizer
      The 19th International Conference on Ion Sources
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Probe Measurement of an ECR Hydrogen Plasma Facing the C12A7 Electride Surface2021

    • Author(s)
      Keita Bito, Mamiko Sasao, Motoi Wada, Katsuyoshi Tsumori, Nakano Haruhisa
    • Organizer
      The 19th International Conference on Ion Sources
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Comparison of Ion Source Plasma Response by Extraction Grid Bias Between Hydrogen and Deuterium Operation in NIFS-RNIS2021

    • Author(s)
      Haruhisa Nakano, Engrhyt Rattanawongnara, Katsuyoshi Tsumori, Shingo Masaki, Taiga Hamajima, Katsunori Ikeda, Kenichi Nagaoka, Yutaka Fujiwara, Masaki Osakabe
    • Organizer
      The 19th International Conference on Ion Sources
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Evaluation of negative ion production with C12A7 electride in negative hydrogen ion source with kW-class ICP discharge2021

    • Author(s)
      S. Shimizu, H. Nakano, K. Saito, M. Sasao M. Wada, K. Bito, A. Ando
    • Organizer
      The 30th International Toki Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] kW級ICP放電型水素負イオン源におけるC12A7エレクトライド表面近傍のプラズマ特性2021

    • Author(s)
      清水星弥, 中野治久, 斎藤健二, 笹尾真実子, 和田元, 尾藤圭太, 安藤晃
    • Organizer
      第38回 プラズマ・核融合学会 年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Initial results of a plasma grid comparison experiment between NIFS and ITER-like types at BATMAN Upgrade2020

    • Author(s)
      Haruhisa Nakano, Christian Wimmer, Masashi Kisaki, Federica Bonomo, Stefan Briefi, Markus Froeschle, Andrew Hurlbatt, Alessandro Mimo, Kenichi Nagaoka, Bernd Heinemann, Katsuyoshi Tsumori, and Ursel Fantz
    • Organizer
      The 7th International Symposium on Negative Ions, Beams and Sources
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Plasma Electrode Shape Suitable for Negative Hydrogen Ion Production2020

    • Author(s)
      Keita BITO, Mamiko SASAO and Motoi WADA
    • Organizer
      The 7th International Symposium on Negative Ions, Beams and Sources
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Measurements of work function and negative Ion spectra from C12A7 electride immersed in a hydrogen plasma2020

    • Author(s)
      Lenny Tahari, Gilles CARTRY, Mamiko SASAO, Marco MINISSALE, Jean-Marc LAYE
    • Organizer
      The 7th International Symposium on Negative Ions, Beams and Sources
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Work function behavior of C12A7 electride materials in low temperature hydrogen plasmas2020

    • Author(s)
      A. Heiler, R. Friedl, R. Nocentini, U. Fantz, M. Tajmar, and M. Sasao
    • Organizer
      The 7th International Symposium on Negative Ions, Beams and Sources
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of the directional Langmuir probe for the charged particle flow measurement2020

    • Author(s)
      S. Masaki, H. Nakano, M. Kisaki, E. Rattanawongnara, K. Nagaoka, K. Ikeda, Y. Fujiwara, M. Osakabe, and K. Tsumori
    • Organizer
      The 7th International Symposium on Negative Ions, Beams and Sources
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] NIFS-IPP国際共同研究によるBATMANでのプラズマ電極比較の初期実験結果2020

    • Author(s)
      中野 治久, 木﨑 雅志, 永岡 賢一, 津守克嘉, C. Wimmer, F. Bonomo, S. Briefi, M. Froeschle, A. Hurlbatt, A. Mimo, B. Heinemann, and U. Fantz
    • Organizer
      第37回 プラズマ・核融合学会 年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Cs-Free Hydrogen Negative Ion Sources for Industrial Applications2020

    • Author(s)
      Mamiko SASAO, Motoi WADA, Naoki MIYAMOTO
    • Organizer
      3rd International Symposium of the Vacuum Society of the Phllippines
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A compact Electron-Cyclotron Resonance (ECR) negative hydrogen ion source to study cesium free plasma grid materials2020

    • Author(s)
      Takayuki Eguchi, Mamiko Sasao, Masashi Kisaki, Haruhisa Nakano, Katsuyoshi Tsumori, Motoi Wada
    • Organizer
      3rd International Symposium of the Vacuum Society of the Phllippines
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Characteristics Comparison of Negative Ion Density between Negative Ion Sources at NIFS and IPP2019

    • Author(s)
      H. Nakano、A. Mimo、M. Kisaki、C. Wimmer、I. Mario、D. Wuenderlich、K. Ikeda、S. Masaki、Y. Haba、K. Nagaoka、Y. Fujiwara、M. Osakabe、U. Fantz and K. Tsumori
    • Organizer
      18th International Conference on Ion Sources
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Prospect of Cs-free hydrogen negative ion sources using C12A7 plasma electrodes2019

    • Author(s)
      Mamiko Sasao、Takayuki Eguchi、Yuji Shimabukuro、James Hernandez、Masashi Kisaki、Haruhisa Nakano、Katsuyoshi Tsumori、Motoi Wada、Gilles Cartry
    • Organizer
      18th International Conference on Ion Sources
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Compact Electron Cyclotron Resonance Negative Hydrogen Ion Source for Evaluation of Plasma Electrode2019

    • Author(s)
      Takayuki Eguchi、Mamiko Sasao、Yuji Shimabukuro、James Hernandez、Masashi Kisaki、Haruhisa Nakano、Motoi Wada、Katsuyoshi Tsumori
    • Organizer
      18th International Conference on Ion Sources
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] First Deuterium Experiment on NIFS-RNIS2019

    • Author(s)
      H. Nakano、M. Kisaki、K. Ikeda、K. Tsumori、K. Nagaoka、Y. Haba、S. Masaki、Y. Fujiwara、S. Kamio and M. Osakabe
    • Organizer
      The Joint Conference of XXXIV International Conference on Phenomena in Ionized Gases and the 10th International Conference on Reactive Plasmas
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] C12A7:e-を用いたkW級高周波放電 Csフリー水素負イオン源試験計画2019

    • Author(s)
      中野治久、木崎雅志、笹尾真実子、和田元、津守克嘉
    • Organizer
      第36回プラズマ・核融合学会年会
    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2024-01-30  

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