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Measurement of Tritium Distributions on Divertor Tiles used in JET-ITER Like Wall Experiments

Research Project

Project/Area Number 26289353
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Nuclear fusion studies
Research InstitutionUniversity of Toyama

Principal Investigator

Hatano Yuji  富山大学, 研究推進機構 水素同位体科学研究センター, 教授 (80218487)

Co-Investigator(Kenkyū-buntansha) 大塚 哲平  近畿大学, 理工学部, 准教授 (80315118)
Project Period (FY) 2014-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥13,000,000 (Direct Cost: ¥10,000,000、Indirect Cost: ¥3,000,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Keywordsプラズマ・核融合 / 放射線 / 水素 / 可視化 / タングステン / 構造・機能材料 / イメージングプレート / ベリリウム
Outline of Final Research Achievements

ITER will use Be as a main chamber wall material and W as a divertor material. To examine the performances of these materials in tokamak environment, JET in EU has performed ITER-Like Wall (ILW) experimental campaigns with Be main chamber tiles and W-coated CFC divertor tiles. In this study, tritium (T) distributions on these tiles were examined using imaging plate (IP) technique and beta-ray induced X-ray spectrometry. Two retention mechanisms were found: (1) co-deposition with Be and other impurities, and (2) implantation into material bulk. T concentrations in Be deposition layers were lower than those in carbon deposition layers formed in previous campaigns with carbon tiles. Far less co-deposition of T on the sides of tiles was observed for ILW tiles compared with carbon tiles. Significantly reduced T retention was expected with Be and W walls in comparison with C walls. Technique to measure T retention in an individual dust particle using IP was also developed.

Report

(5 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • Research Products

    (26 results)

All 2018 2017 2016 2015 2014 Other

All Int'l Joint Research (6 results) Journal Article (4 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 4 results,  Acknowledgement Compliant: 3 results) Presentation (14 results) (of which Int'l Joint Research: 9 results) Remarks (2 results)

  • [Int'l Joint Research] VTT Research Center of Finland/University of Helsinki(Finland)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Culham Centre for Fusion Enegy(英国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] VTT Technical Research Centre of Finland/University of Helsinki(Finland)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] Culham Centre for Fusion Energy(United Kingdom)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] VTT Technical Research Centre of Finland/University of Helsinki(Finland)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Tritium analysis of divertor tiles used in JET ITER-like wall campaigns by means of β-ray induced x-ray spectrometry2017

    • Author(s)
      Y. Hatano, K. Yumizuru, S. Koivuranta, J. Likonen, M. Hara, M. Matsuyama, S. Masuzaki, M. Tokitani, N. Asakura, K. Isobe, T. Hayashi, A. Baron-Wiechec, A. Widdowson, JET contributors
    • Journal Title

      Physica Scripta

      Volume: 2017 Pages: 014014-014014

    • DOI

      10.1088/1402-4896/aa8931

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Tritium distributions on tungsten and carbon tiles used in the JET divertor2016

    • Author(s)
      Y. Hatano, K. Yumizuru, J. Likonen, S. Koivuranta, J. Ikonen, JET contributors
    • Journal Title

      Physica Scripta

      Volume: 2016 Pages: 014009-014009

    • DOI

      10.1088/0031-8949/t167/1/014009

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Tritium retention in individual metallic dust particles examined by a tritium imaging plate technique2016

    • Author(s)
      T. Otsuka, Y. Hatano
    • Journal Title

      Physica Scripta

      Volume: 2016 Pages: 014010-014010

    • DOI

      10.1088/0031-8949/t167/1/014010

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 2D tritium distribution on tungsten tiles used in JET ITER-like wall project2015

    • Author(s)
      Y. Hatano, A. Widdowson, N. Bekris, C. Ayres, A. Baron-Wiechec, J. Likonen, S. Koivuranta, J. Ikonen, K. Yumizuru, JET-EFDA contributors
    • Journal Title

      Journal of Nuclear Materials

      Volume: 463 Pages: 966-969

    • DOI

      10.1016/j.jnucmat.2014.12.041

    • Related Report
      2015 Annual Research Report 2014 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Tritium distributions on W-coated divertor tiles and selected Be tiles used in the third JET ITER-like wall campaign2018

    • Author(s)
      Y. Hatano, J. Likonen, S. Koivuranta, J. Ikonen, A. Widdowson, S. Masuzaki, JET Contributors
    • Organizer
      23rd International Conference on Plasma Surface Interactions in Controlled Fusion Devices
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Tritium retention characteristics in dust particles in JET with ITER-like wall2018

    • Author(s)
      T. Otsuka, S. Masuzaki, N. Ashikawa, Y. Hatano, N. Asakura, T. Suzuki, T. Suzuki, K. Isobe, T. Hayashi, Y. Tokitani, Y. Oya, D. Hamaguchi, H. Kurotaki, R. Sakamoto, H. Tanigawa, M. Nakamichi, A. Widdowson, M. Rubel, JET Contributors
    • Organizer
      23rd International Conference on Plasma Surface Interactions in Controlled Fusion Devices
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] JET-ITER like wallから発生したダスト粒子のトリチウム保持特性2018

    • Author(s)
      大塚哲平, 増崎 貴, 芦川直子, 波多野雄治, 朝倉伸幸, 鈴木卓美, 鈴木達也, 磯部兼嗣, 林 巧, 時谷政行
    • Organizer
      日本原子力学会2018春の年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Tritium analysis of divertor tiles used in JET ITER-like wall campaigns by means of β-ray induced x-ray spectrometry2017

    • Author(s)
      Y. Hatano, K. Yumizuru, S. Koivuranta, J. Likonen, M. Hara, M. Matsuyama, S. Masuzaki, M. Tokitani, N. Asakura, K. Isobe, T. Hayashi, A. Baron-Wiechec, A. Widdowson, JET contributors
    • Organizer
      16th International Conference on Plasma-Facing Materials and Components for Fusion Applications
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Overview of recent tritium research activities in Hydrogen Isotope Research Center, University of Toyama2017

    • Author(s)
      Y. Hatano, M. Hara, A. Taguchi, S. Akamaru, M. Nakayama, M. Matsuyama, T. Abe
    • Organizer
      2nd Asia-Pacific Symposium on Tritium Science
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] イメージングプレート法およびβ線誘起 X 線計測法の JET ITER-Like-Wall 実験で使用されたダイバータ タイル中のトリチウム分布測定への適応性の検討2016

    • Author(s)
      弓弦一哉, 波多野雄治, Seppo Koivuranta, Jari Likonen, 原正憲, 松山政夫, JET Contributors
    • Organizer
      第11回 核融合エネルギー連合講演会
    • Place of Presentation
      福岡市, 日本
    • Year and Date
      2016-07-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] Non-destructive tritium analysis of divertor tiles used in JET ITER-like wall campaigns by means of beta-ray induced X-ray spectrometry2016

    • Author(s)
      K. Yumizuru, S. Koivuranta, Y. Hatano, J. Likonen, M. Matsuyama, A. Widdowson, JET contributors
    • Organizer
      22nd International Conference on Plasma Surface Interactions in Controlled Fusion Devices
    • Place of Presentation
      Rome, Italy
    • Year and Date
      2016-05-30
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Non-destructive tritium analysis of divertor tiles used in JET ITER-like wall campaigns by means of beta-ray induced X-ray spectrometry2016

    • Author(s)
      K. Yumizuru, S. Koivuranta, Y. Hatano, J. Likonen, M. Matsuyama, A. Widdowson and JET contributors
    • Organizer
      22nd International Conference on Plasma-Surface Interactions in Controlled Fusion Devices
    • Place of Presentation
      Rome, Italy
    • Year and Date
      2016-05-30
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Application of imaging plate technique and beta-ray-induced X-ray spectrometry to measurements of tritium distributions in divertor tiles used in JET ITER-like wall campaigns2016

    • Author(s)
      Y. Hatano, K. Yumizuru, S. Koivuranta, J. Likonen, J. Ikonen, M. Matsuyama, JET contributors
    • Organizer
      11th International Conference on Tritium Science and Technology
    • Place of Presentation
      Charleston, South Carolina, USA
    • Year and Date
      2016-04-18
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] イメージングプレート法およびβ線誘起X線計測法によるJET ITER-Like Wall ダイバータタイル上のトリチウム分布の測定2016

    • Author(s)
      波多野 雄治、弓弦 一哉、Koivuranta Seppo、Likonen Jari、松山 政夫、JET contributors
    • Organizer
      日本原子力学会2016年春の年会
    • Place of Presentation
      仙台市、日本
    • Year and Date
      2016-03-26
    • Related Report
      2015 Annual Research Report
  • [Presentation] 2D Tritium Distributions on Tungsten and Carbon Tiles Used in JET Divertor2015

    • Author(s)
      Y. Hatano, K. Yumizuru, J. Likonen, S. Koivuranta, J. Ikonen, JET EFDA contributors
    • Organizer
      15th International Conference on Plasma-Facing Materials and Components for Fusion Applications
    • Place of Presentation
      Aix-en-Provence, France
    • Year and Date
      2015-05-18 – 2015-05-22
    • Related Report
      2014 Annual Research Report
  • [Presentation] Tritium retention in individual metallic dust particles examined by a tritium imaging plate technique2015

    • Author(s)
      T. Otsuka, Y. Hatano
    • Organizer
      15th International Conference on Plasma-Facing Materials and Components for Fusion Applications
    • Place of Presentation
      Aix-en-Provence, France
    • Year and Date
      2015-05-18
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 2D tritium distributions on tungsten and carbon tiles used in the JET divertor2015

    • Author(s)
      Y. Hatano, K. Yumizuru, J. Likonen, S. Koivuranta, J. Ikonen, JET contributors
    • Organizer
      15th International Conference on Plasma-Facing Materials and Components for Fusion Applications
    • Place of Presentation
      Aix-en-Provence, France
    • Year and Date
      2015-05-18
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 2D tritium distribution on tungsten and beryllium tiles used in JET ITER-like wall project2014

    • Author(s)
      Y. Hatano, A. Widdowson, N. Bekris, C. Ayres, A. Baron-Wiechec, J. Likonen, S. Koivuranta, J. Ikonen, K. Yumizuru, JET-EFDA contributors
    • Organizer
      21st International Conference on Plasma-Surface Interactions in Controlled Fusion Devices
    • Place of Presentation
      Kanazawa, Japan
    • Year and Date
      2014-05-26 – 2014-05-30
    • Related Report
      2014 Annual Research Report
  • [Remarks] 富山大学研究推進機構 水素同位体科学研究センターホームページ

    • URL

      http://www.hrc.u-toyama.ac.jp/jp/

    • Related Report
      2017 Annual Research Report
  • [Remarks] 富山大学研究推進機構水素同位体科学研究センターホームページ

    • URL

      http://www.hrc.u-toyama.ac.jp/jp/

    • Related Report
      2016 Annual Research Report 2015 Annual Research Report

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Published: 2014-04-04   Modified: 2022-02-22  

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