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In-situ high accuracy measurement of hydrogen and helium behavior in plasma facing materials

Research Project

Project/Area Number 20K03904
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 14020:Nuclear fusion-related
Research InstitutionShimane University

Principal Investigator

Miyamoto Mitsutaka  島根大学, 学術研究院理工学系, 准教授 (80379693)

Co-Investigator(Kenkyū-buntansha) 治田 充貴  京都大学, 化学研究所, 准教授 (00711574)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords核融合プラズマ対向材料 / 水素 / ヘリウム / 高機能電子顕微鏡 / STEM-EELS
Outline of Research at the Start

核融合プラズマ対向材料中の水素同位体およびヘリウムの挙動の理解は,プラズマ制御と炉の安全性維持に関わる極めて重要な課題である.本研究は,高分解能質量分析計を導入したイオン照射装置直結透過型電子顕微鏡,およびモノクロメータ搭載低加速原子分解能分析電子顕微鏡の2種類の先進高機能電子顕微鏡を相補的に用いて,核融合プラズマ対向材料中の水素同位体・ヘリウム挙動を実時間で高精度にその場測定することを目的としている.

Outline of Final Research Achievements

In this study, the dynamic behaviors of hydrogen isotopes and helium atoms in fusion reactor materials such as tungsten, beryllium and reduced activation ferritic steels were examined using two types of sophisticated TEMs.
In the first half of the research period, a high-resolution mass spectrometer was installed in a TEM directly connected to an ion gun, enabling simultaneous in-situ measurement of microstructural evolutions and gas retention properties. The complementary use of this system and a STEM-EELS has successfully enabled the quantitative evaluation of dynamic gas-atomic behavior in various samples irradiated with deuterium or helium ions with high spatial resolution and in direct correlation with microstructural changes.

Academic Significance and Societal Importance of the Research Achievements

核融合炉材料中のガス原子の蓄積,および再放出の挙動は,炉心プラズマの燃料密度制御や炉の安全性に影響するため,その理解は核融合炉実現のための重要な課題として認識されているが,これまでの材料照射実験の多くは,照射後の試料分析がほとんどで,過渡的現象の後に残存する静的照射効果に関する報告が主であった.本研究では,材料中の過渡的な水素同位体・ヘリウム挙動を実時間で高精度に直接その場測定し,国際的にも例のない,インパクトの大きい貴重なデータを取得することができた.本研究を通して得られた成果から,材料の劣化程度や寿命の予測,さらに最適化された使用条件の提案に貢献できると考えられる.

Report

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

    (26 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (4 results) Journal Article (7 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 7 results) Presentation (15 results) (of which Int'l Joint Research: 3 results)

  • [Int'l Joint Research] カリフォルニア大学サンディエゴ校(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] マンチェスター大学(英国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] カリフォルニア大学サンディエゴ校(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] カリフォルニア大学サンディエゴ校(米国)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Effect of the internal pressure of helium bubbles on the morphology and mobility of beryllium2023

    • Author(s)
      Sugimoto Yutaka、Hara Kazutomo、Haruta Mitsutaka、Kurata Hiroki、Kim Jae-Hwan、Hwang Taehyun、Nakamichi Masaru、Miyamoto Mitsutaka
    • Journal Title

      Fusion Engineering and Design

      Volume: 191 Pages: 113720-113720

    • DOI

      10.1016/j.fusengdes.2023.113720

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In-situ TEM observation of migration behavior of helium bubbles in F82H2022

    • Author(s)
      Miyamoto Mitsutaka、Hashiguchi Masaharu、Ashizawa Kyosuke、Sugimoto Yutaka、Watanabe Yoshiyuki
    • Journal Title

      Journal of Nuclear Science and Technology

      Volume: 59 Issue: 9 Pages: 1168-1173

    • DOI

      10.1080/00223131.2022.2034547

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effects of Zr/Mo addition on He bubble formation in Y2O3-added W alloys2022

    • Author(s)
      Xu Qiu、Miyamoto M.、Luo Lai-Ma
    • Journal Title

      Tungsten

      Volume: - Issue: 3 Pages: 203-211

    • DOI

      10.1007/s42864-021-00131-4

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Comparative study of surface modification and D retention between beryllium and beryllides under high flux plasma exposure2021

    • Author(s)
      Miyamoto M.、Sugimoto Y.、Nishijima D.、Baldwin M.J.、Doerner R.P.、Zaloznik A.、Kim J.H.、Nakamichi M.
    • Journal Title

      Nuclear Materials and Energy

      Volume: 27 Pages: 101014-101014

    • DOI

      10.1016/j.nme.2021.101014

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Deuterium retention in MeV ion-irradiated beryllium2021

    • Author(s)
      Zalo?nik An?e、Doerner Russell P.、Schwarz-Selinger Thomas、Miyamoto Mitsutaka、Brezinsek Sebastijan
    • Journal Title

      Journal of Nuclear Materials

      Volume: 555 Pages: 153139-153139

    • DOI

      10.1016/j.jnucmat.2021.153139

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Enhanced D retention in RAFM steel caused by D bubbles formed inside Cr-rich surface layer2021

    • Author(s)
      Nishijima D.、Tokitani M.、Doerner R.P.、Masuzaki S.、Miyamoto M.、Nagata D.、Tynan G.R.
    • Journal Title

      Nuclear Materials and Energy

      Volume: 29 Pages: 101084-101084

    • DOI

      10.1016/j.nme.2021.101084

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Deuterium and helium desorption behavior and microstructure evolution in beryllium during annealing2021

    • Author(s)
      Sugimoto Yutaka、Nakamichi Masaru、Kim Jae-Hwan、Kurata Hiroki、Haruta Mitsutaka、Miyamoto Mitsutaka
    • Journal Title

      Journal of Nuclear Materials

      Volume: 544 Pages: 152686-152686

    • DOI

      10.1016/j.jnucmat.2020.152686

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] STEM-EELSによるタングステン中の重水素,ヘリウム挙動の高精度評価2023

    • Author(s)
      佐野航平,澤江伴弥,治田充貴,倉田博基,宮本光貴
    • Organizer
      日本原子力学会2023年春の年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 質量分析計直結型透過型電子顕微鏡によるBe中のガス放出挙動のその場観察2023

    • Author(s)
      中尾 智也, 澤江 伴弥, 大久保 慎高, 宮本 光貴
    • Organizer
      日本原子力学会2023年春の年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 核融合炉ブランケット研究におけるベリリウム内部でのバブル成長挙動の観察2022

    • Author(s)
      杉本有隆,金宰煥,黄泰現,赤津孔明,中野優,宮本光貴, 原一智,佐野浩平,治田充貴,倉田博基,中道勝
    • Organizer
      第14回核融合エネルギー連合講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 高機能透過型電子顕微鏡によるタングステン中の水素.ヘリウム挙動の高精度その場測定2022

    • Author(s)
      佐野航平,澤江伴弥,宮本光貴,治田充貴,倉田博基
    • Organizer
      第14回核融合エネルギー連合講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 質量分析計を導入したイオン銃直結型透過型電子顕微鏡によるプラズマ対向材料のガス放出挙動と微細組織変化の同時測定2022

    • Author(s)
      澤江 伴弥,原 一智,杉本 有隆,宮本 光貴
    • Organizer
      第14回核融合エネルギー連合講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 高機能電子顕微鏡によるタングステン中の水素滞留挙動に与える ヘリウム照射の影響評価2022

    • Author(s)
      宮本光貴,佐野航平,澤江伴弥,治田充貴,倉田博基
    • Organizer
      第39回 プラズマ・核融合学会 年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 照射材料におけるガス放出挙動と微細組織変化の実時間同時測定2021

    • Author(s)
      原 一智,澤江 伴弥,杉本 有隆,渡辺 淑之,宮本 光貴
    • Organizer
      日本原子力学会2021年秋の大会
    • Related Report
      2021 Research-status Report
  • [Presentation] ベリリウムにおけるバブル中のガス保持挙動に与える圧力の影響2021

    • Author(s)
      杉本有隆,原 一智,佐野航平,治田充貴,倉田博基,金 宰煥,中道 勝,宮本光貴
    • Organizer
      日本原子力学会2021年秋の大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Characterization of Hydrogen and Helium Behavior in Beryllium by In-situ TEM and STEM-EELS2021

    • Author(s)
      Mitsutaka Miyamoto, Yutaka Sugimoto, Kazutomo Hara, Hirotomo Iwakiri, Mitsutaka Haruta, Hiroki Kurata
    • Organizer
      20th International Conference on Fusion Reactor Materials
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effect of irradiation temperature on bubble pressure and mobility in beryllium2021

    • Author(s)
      Yutaka Sugimoto, Kazutomo Hara, Hiroki Kurata, Mitsutaka Haruta, Msaru Nakamichi, Jae-Hwan Kim, Mitsutaka Miyamoto
    • Organizer
      20th International Conference on Fusion Reactor Materials
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] ヘリウムイオン照射したF82Hの昇温下における微細組織変化と ガス放出挙動の関係2021

    • Author(s)
      布野 尚斉,原 一智,澤江 伴弥,宮本 光貴
    • Organizer
      第38回プラズマ・核融合学会年会
    • Related Report
      2021 Research-status Report
  • [Presentation] 高分解能質量分析計を導入したTEMによるガス放出挙動と微細組織変化の同時観察2021

    • Author(s)
      澤江 伴弥,原 一智,杉本 有隆,宮本 光貴
    • Organizer
      第38回プラズマ・核融合学会年会
    • Related Report
      2021 Research-status Report
  • [Presentation] Surface Modification of Beryllium and Beryllide Exposed to D+He Mixture Plasma2021

    • Author(s)
      M. Miyamoto, Y. Sugimoto, D. Nishijima, M.J. Baldwin, R.P. Doerner, A. Zaloznik, Jae-Hwan Kim, M. Nakamichi
    • Organizer
      24th International Conference on Plasma Surface Interactions
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] ベリリウムの水素保持特性へ与えるヘリウムの影響2020

    • Author(s)
      杉本有隆,原一智,澤江伴弥,金宰煥,中道勝,治田充貴, 倉田博基,宮本光貴
    • Organizer
      第37回プラズマ・核融合学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 重水素/ヘリウム照射した低放射化フェライト鋼および純鉄の微細組織変化と水素保持特性2020

    • Author(s)
      原一智,杉本有隆,西島大輔,治田充貴,倉田博基,渡辺淑之,宮本光貴
    • Organizer
      第37回プラズマ・核融合学会年会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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