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Study of macro- and micro-scale plasma heating during merging/reconnection startup of high beta spherical tokamak

Research Project

Project/Area Number 15K20921
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Nuclear fusion studies
Plasma science
Research InstitutionThe University of Tokyo

Principal Investigator

Tanabe Hiroshi  東京大学, 大学院新領域創成科学研究科, 助教 (30726013)

Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywordsプラズマ・核融合 / 球状トカマク / 磁気リコネクション / コンピュータトモグラフィ / プラズマ診断
Outline of Final Research Achievements

This research project proceeds the study of plasma heating during merging/reconnection of two toroidal plasmas in laboratory experiments at the university of Tokyo and MAST (the world largest spherical tokamak at CCFE, UK). As a new finding, it is found that magnetic reconnection heats electrons locally in microscopic region around X-point and globally downstream of reconnection outflow. In laboratory experiments at the university of Tokyo, more detailed high resolution ion Doppler tomography measurement has been done with in-situ probe measurement of in-plane magnetic field and successfully reproduced the structure of global ion heating which forms high temperature ring on the thick layer of closed flux which is formed by reconnected magnetic field.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (37 results)

All 2017 2016 2015 Other

All Int'l Joint Research (6 results) Journal Article (11 results) (of which Int'l Joint Research: 10 results,  Peer Reviewed: 11 results,  Open Access: 8 results,  Acknowledgement Compliant: 7 results) Presentation (17 results) (of which Int'l Joint Research: 12 results,  Invited: 7 results) Remarks (3 results)

  • [Int'l Joint Research] CCFE/Tokamak Energy(英国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] National Cheng Kung University(台湾)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] General Atomics/Washington University/PPPL(米国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] Australian National University(オーストラリア)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] CCFE/Tokamak Energy Ltd.(英国)

    • Related Report
      2015 Research-status Report
  • [Int'l Joint Research] PPPL/Univ. Washington/General Atomics(米国)

    • Related Report
      2015 Research-status Report
  • [Journal Article] Investigation of Merging/reconnection Heating during Solenoid-free Startup of Plasmas in the MAST Spherical Tokamak2017

    • Author(s)
      H. Tanabe, T. Yamada, K. Gi, T. Watanabe, M. Inomoto, R. Imazawa, M. Gryaznevich, R. Scannell, N. Conway, C. Michael, B. Crowley, I. Fitzgerald, A. Meakins, N. Hawkes, K. McClements, J. Harrison, T. O'Gorman, C. Z. Cheng, Y. Ono
    • Journal Title

      Nuclear Fusion

      Volume: 57 Issue: 5 Pages: 056037-056037

    • DOI

      10.1088/1741-4326/aa6608

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Recent progress of magnetic reconnection research in the MAST spherical tokamak (Invited)2017

    • Author(s)
      H. Tanabe, T. Yamada , T. Watanabe , K. Gi , M. Inomoto , R. Imazawa , M. Gryaznevich , C. Michael , B. Crowley , N. J. Conway , R. Scannell , J. R. Harrison , I. Fitzgerald , A. Meakins , N. C. Hawkes , K. G. McClements , T, O Gorman , C,Z. (Frank) Cheng , Y. Ono , the MAST team
    • Journal Title

      Physics of Plasmas

      Volume: 24 Issue: 5 Pages: 056108-056108

    • DOI

      10.1063/1.4977922

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Application of Tomographic Ion Doppler Spectroscopy to Merging Plasma Startup in the MAST Spherical Tokamak2016

    • Author(s)
      H. Tanabe, T. Yamada, T. Watanabe, K. Gi, K. Kadowaki, M. Inomoto, R. Imazawa, M. Gryaznevich, R. Scannell, N. J. Conway, B. Crowley, K. G. McClements, I. Fitzgerald, C. Michael, J. Harrison, A. Meakins, N. Hawkes, T. O’Gorman, C. Z. Cheng, Y. Ono, and the MAST Team
    • Journal Title

      Plasma and Fusion Research

      Volume: 11 Issue: 0 Pages: 1302093-1302093

    • DOI

      10.1585/pfr.11.1302093

    • NAID

      130005311581

    • ISSN
      1880-6821
    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Localized electron heating during magnetic reconnection in MAST2016

    • Author(s)
      T. Yamada, H. Tanabe, T. G. Watanabe, Y. Hayashi, R. Imazawa, M.Inomoto, Y. Ono, M. Gryaznevich, R. Scannell, C. Michael and The MAST Team
    • Journal Title

      Nucl. Fusion

      Volume: 56 Issue: 10 Pages: 106019-106019

    • DOI

      10.1088/0029-5515/56/10/106019

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Application of Tomographic Ion Doppler Spectroscopy to Merging Plasma Startup in the MAST Spherical Tokamak2016

    • Author(s)
      H. Tanabe, T. Yamada, T. Watanabe, K. Gi, K. Kadowaki, M. Inomoto, R. Imazawa, M. Gryaznevich, R. Scannell, N. J. Conway, B. Crowley, K. G. McClements, I. Fitzgerald, C. Michael, J. Harrison, A. Meakins, N. Hawkes, T. O’Gorman, C. Z. Cheng, Y. Ono, and the MAST Team
    • Journal Title

      Plasma and Fusion Research

      Volume: TBD

    • NAID

      130005311581

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Numerical study of energy conversion mechanism of magnetic reconnection in the presence of high guide field2015

    • Author(s)
      S. Inoue, Y. Ono, H. Tanabe, R. Horiuchi and C. Z. Cheng
    • Journal Title

      Nuclear Fusion

      Volume: 55 Issue: 8 Pages: 083014-083014

    • DOI

      10.1088/0029-5515/55/8/083014

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Center-solenoid-free merging start-up of spherical tokamak plasmas in UTST2015

    • Author(s)
      M. Inomoto, T. Watanabe, K. Gi, K. Yamasaki, S. Kamio, R. Imazawa, T. Yamada, X. Guo, T. Ushiki, H. Ishikawa, H. Nakamata, N. Kawakami, T. Sugawara, K. Matsuyama, K. Noma, A. Kuwahata, and H. Tanabe
    • Journal Title

      Nuclear Fusion

      Volume: 55 Issue: 3 Pages: 033013-033013

    • DOI

      10.1088/0029-5515/55/3/033013

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Journal Article] Charge dependence of neoclassical and turbulent transport of light impurities on MAST2015

    • Author(s)
      S. S. Henderson, L. Garzotti, F. J. Casson, D. Dickinson, M. O’Mullane, A. Patel, C. M. Roach, H. P. Summers, H. Tanabe, M. Valovič and the MAST team
    • Journal Title

      Plasma Physics and Controlled Fusion

      Volume: 57 Issue: 9 Pages: 095001-095001

    • DOI

      10.1088/0741-3335/57/9/095001

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] High Power Heating of Magnetic Reconnection in Merging Tokamak Experiments (Invited)2015

    • Author(s)
      Y. Ono, H. Tanabe, T. Yamada, K. Gi, T. Watanabe , T. Ii, M. Gryaznevich, R. Scannell, N. Conway, B. Crowley, C. Michael
    • Journal Title

      Physics of Plasmas

      Volume: 22 Issue: 5 Pages: 055708-055708

    • DOI

      10.1063/1.4920944

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Overview of MAST results2015

    • Author(s)
      I.T. Chapman, J. Adamek, R.J. Akers, S. Allan , T. O'Gorman, Y. Ono H. Oliver, S. Pamela,J. Storrs, Y. Takase, H. Tanabe, H. Tanaka, D. Taylor, …, T. Yamada, S. Zoletnik and MAST and MAST Upgrade Teams,
    • Journal Title

      Nuclear Fusion

      Volume: 55 Issue: 10 Pages: 104008-104008

    • DOI

      10.1088/0029-5515/55/10/104008

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Electron and Ion Heating Characteristics during Magnetic Reconnection in the MAST Spherical Tokamak2015

    • Author(s)
      H. Tanabe, T. Yamada, T. Watanabe, K. Gi, K. Kadowaki, M. Inomoto, R. Imazawa, M. Gryaznevich, C. Michael, B. Crowley, N. J. Conway, R. Scannell, J. Harrison, I. Fitzgerald, A. Meakins, N. Hawkes, K. G. McClements, T. O’Gorman, C.Z. Cheng, Y. Ono, and the MAST Team
    • Journal Title

      Phys. Rev. Lett.

      Volume: 115 Issue: 21

    • DOI

      10.1103/physrevlett.115.215004

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Fine structure formation of high field reconnection experiment in MAST and univ. Tokyo2017

    • Author(s)
      H. Tanabe, T. Yamada, T. Watanabe, K. Gi, H. Koike, A. Kuwahata, H. Yamanaka, K. Kimura, M. Narita, M. Inomoto, R. Imazawa, M. Gryaznevich, R. Scannell, N. Conway, T. O'Gorman, K. G. McClements, C. Z. Cheng, Y. Ono and the MAST team
    • Organizer
      The US-Japan workshops and schools on magnetic reconnection (MR2017)
    • Place of Presentation
      ひめぎんホール(愛媛県松山市)
    • Year and Date
      2017-03-20
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] マルチスリット分光法を用いた高スループット・高精細イオンドップラートモグラフィ計測の開発2016

    • Author(s)
      田辺 博士, 小池 秀弥, 木村 心, 佐藤 直也, 成田 穂, 小野 靖
    • 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
      2016-11-30
    • Related Report
      2016 Annual Research Report
  • [Presentation] Recent progress of magnetic reconnection research in the MAST spherical tokamak2016

    • Author(s)
      H. Tanabe
    • Organizer
      58th Annual Meeting of the APS Division of Plasma Physics
    • Place of Presentation
      San Jose, USA
    • Year and Date
      2016-10-31
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Investigation of Merging/reconnection Heating during Solenoid-free Startup of Plasmas in the MAST Spherical Tokamak2016

    • Author(s)
      H. Tanabe, T. Yamada, K. Gi, T. Watanabe, K. Kadowaki, M. Gryaznevich, R. Scannell, N. J. Conway, C. Michael, B. Crowley, J. Harrison, I. Fitzgerald, A. Meakins, N. Hawkes, K. G. McClements, T. O’Gorman, C. Z. Cheng and the MAST team
    • Organizer
      26th IAEA Fusion Energy Conference
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2016-10-19
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Investigation of merging/reconnection heating during solenoid-free startup of plasmas in the MAST spherical tokamak2016

    • Author(s)
      H. Tanabe, T. Yamada, T. Watanabe, K. Gi, K. Kadowaki, M. Gryaznevich, R. Scannell, N. J. Conway, C. Michael, B. Crowley, J. Harrison, I. Fitzgerald, A. Meakins, N. Hawkes, K. G. McClements, T. O’Gorman and C. Z. Cheng
    • Organizer
      26th IAEA Fusion Energy Conference
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2016-10-17
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] 合体加熱を応用したCS-less立ち上げ研究の最近の進展2016

    • Author(s)
      田辺 博士, 山田 琢磨, 渡辺 岳典, 魏 啓為 , 門脇 和丈, 井通暁, 今澤良太, M. Gryaznevich, C. Michael, N. Conway, R. Scannell, B. Crowley, K. McClements, C. Z. Cheng, 小野 靖, the MAST team
    • Organizer
      「球状トカマク炉のための非誘導電流駆動等の要素技術の開発」研究会
    • Place of Presentation
      核融合科学研究所(岐阜県多治見市)
    • Year and Date
      2016-09-07
    • Related Report
      2016 Annual Research Report
  • [Presentation] Ion and Electron Heating Characteristics of Magnetic Reconnection in MAST Spherical Tokamak2016

    • Author(s)
      H. Tanabe, T. Yamada, R. Imazawa, M. Inomoto, C. Z. Cheng, Y. Ono and the MAST team
    • Organizer
      41st COSPAR Scientific Assembly
    • Place of Presentation
      Istanbul, Turkey (トルコ治安情勢により会議開催中止)
    • Year and Date
      2016-08-02
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ION AND ELECTRON HEATING CHARACTERISTICS OF MAGNETIC RECONNECTION IN MAST TOKAMAK MERGING EXPERIMENT2016

    • Author(s)
      H. Tanabe, T. Yamada, R. Imazawa, M. Inomoto, C. Z. Cheng, Y. Ono and the MAST team (M. Gryaznevich, R. Scannell, N. Conway, K. G. McClements)
    • Organizer
      41st COSPAR Scientific Assembly 2016
    • Place of Presentation
      Istanbul, Turkey
    • Year and Date
      2016-07-30
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Application of high power reconnection heating for solenoid-less startup of spherical tokamak in MAST2016

    • Author(s)
      H. Tanabe, T. Yamada, R. Imazawa, M. Gryaznevich, R. Scannell, N. Conway, B. Crowley, C. Michael, K. G. McClements, M. Inomoto, C. Z. Cheng, Y. Ono and the MAST team
    • Organizer
      The 18th International Congress on Plasma Physics (ICPP 2016)
    • Place of Presentation
      Kaohsiung, Taiwan
    • Year and Date
      2016-06-28
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 実験室リコネクションにおけるプラズマ加熱2016

    • Author(s)
      田辺 博士, 山田 琢磨, 渡辺 岳典, 魏 啓為, 門脇 和丈, 井通暁, 今澤 良太, M. Gryaznevich, the MAST team, C. Z. Cheng, 小野 靖
    • Organizer
      磁気リコネクション研究の最前線と今後の展望
    • Place of Presentation
      国立天文台(東京都, 三鷹市)
    • Year and Date
      2016-03-28
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] Recent progress of high field reconnection heating experiment in MAST2016

    • Author(s)
      H. Tanabe, T. Yamada, T. Watanabe, K. Gi, K. Kadowaki, M. Inomoto, R. Imazawa, M. Gryaznevich, C. Michael, B. Crowley, N. J. Conway, R. Scannell, J. Harrison, I. Fitzgerald, A. Meakins, N. Hawkes, K. G. McClements, T. O’Gorman, C. Z. Cheng and Y. Ono
    • Organizer
      US-Japan workshop on Magnetic Reconnection (MR2016)
    • Place of Presentation
      Napa, USA
    • Year and Date
      2016-03-07
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 大型球状トカマク合体実験MASTにおけるリコネクション加熱研究の進展2015

    • Author(s)
      田辺 博士, 山田 琢磨, 渡辺 岳典, 魏 啓為, 門脇 和丈, 今澤 良太, C. Michael, B. Crowley, N. Conway, R. Scannell, M. Gryaznevich, 井 通暁, 小野 靖
    • Organizer
      第32回プラズマ核融合学会年会
    • Place of Presentation
      名古屋大学(愛知県, 名古屋市)
    • Year and Date
      2015-11-24
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] Electron and ion heating characteristics during magnetic reconnection in MAST2015

    • Author(s)
      H. Tanabe, T. Yamada, T. Watanabe, K. Gi, K. Kadowaki, M. Inomoto, R. Imazawa, M. Gryaznevich, C. Michael, N. Conway, R. Scannell, B. Crowley, K. McClements and Y. Ono
    • Organizer
      57th Annual Meeting of the APS Division of Plasma Physics
    • Place of Presentation
      Savannah, USA
    • Year and Date
      2015-11-16
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Development of ultra-fast 2D ion Doppler tomography using image intensified CMOS fast camera2015

    • Author(s)
      H. Tanabe, A. Kuwahata, H. Yamanaka, M. Inomoto and Y. Ono
    • Organizer
      57th Annual Meeting of the APS Division of Plasma Physics
    • Place of Presentation
      Savannah, USA
    • Year and Date
      2015-11-16
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Application of merging/reconnection heating for spherical tokamak in MAST2015

    • Author(s)
      H. Tanabe, T. Yamada, K. Yamasaki, T.Watanabe, K. Gi, M. Inomoto, M. Gryaznevich, R. Scannell, N. Conway, B. Crowley, C. Michael and Y. Ono
    • Organizer
      18th International Spherical Torus Workshop (ISTW 2015)
    • Place of Presentation
      Princeton, USA
    • Year and Date
      2015-11-03
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] MAST共同実験における高ガイド磁場リコネクションの加熱2015

    • Author(s)
      田辺 博士, 山田 琢磨, 渡辺 岳典, 魏 啓為, 門脇 和丈, 井 通暁, 今澤 良太, M. Gryaznevich, the MAST team, C. Z. Cheng and 小野 靖
    • Organizer
      第23回ひので-実験室研究会
    • Place of Presentation
      東京大学(東京都, 文京区)
    • Year and Date
      2015-10-12
    • Related Report
      2015 Research-status Report
  • [Presentation] Electron and ion heating characteristics during merging/reconnection startup of spherical tokamak in MAST2015

    • Author(s)
      H. Tanabe, T. Yamada, T. Watanabe, K. Gi, K. Kadowaki, M. Inomoto, M. Gryaznevich, C. Michael, B. Crowley, N. Conway, R. Scannell and Y. Ono
    • Organizer
      The 2015 International Workshop on the Interrelationship between Plasma Experiments in the Laboratory and in Space (IPELS2015)
    • Place of Presentation
      Pitlochry, UK
    • Year and Date
      2015-08-23
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Remarks] 所属研究室HP (小野・井研究室)

    • URL

      http://tanuki.t.u-tokyo.ac.jp/

    • Related Report
      2016 Annual Research Report
  • [Remarks] 小野・井研究室

    • URL

      http://tanuki.t.u-tokyo.ac.jp/

    • Related Report
      2015 Research-status Report
  • [Remarks] プラズマ・核融合学会 第20回学術奨励賞受賞

    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2022-02-16  

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