Phyisics and Applications of High-Power Heating / Acceleration of Ultra-High Field Magnetic Reconnection by Use of 2D Imaging Measurements

2019 Fiscal Year Annual Research Report

• Project/Area Number: 15H05750
• Research Institution: The University of Tokyo
• Principal Investigator: 小野 靖 東京大学, 大学院新領域創成科学研究科, 教授 (30214191)
• Co-Investigator(Kenkyū-buntansha): 井 通暁 東京大学, 大学院新領域創成科学研究科, 教授 (00324799) ; 原 弘久 国立天文台, SOLAR-Cプロジェクト, 准教授 (20270457) ; 田辺 博士 東京大学, 大学院新領域創成科学研究科, 助教 (30726013) ; 清水 敏文 国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 教授 (60311180)
• Project Period (FY): 2015-05-29 – 2020-03-31
• Keywords: 磁気リコネクション / ２次元イオンドップラー計測 / ２次元トムソン散乱計測 / ２次元Ｘ線計測 / ２次元画像比較 / 粒子加速・加熱 / 高磁場プラズマ合体 / リコネクションン応用開拓

Outline of Annual Research Achievements

謎の多い磁気リコネクションのイオン・電子の加熱・加速効果を解明するため，独自開発のイオン温度，電子温度，磁場，Ｘ線の２次元計測を高精細化すると共に，リコネクション実験は海外で進む大型化ではなく，中規模のトカマクプラズマ合体実験群を最大の磁場0.5T, イオン温度2keVまで高磁場化して，リコネクション加熱・加速のパワーが損失の10-100倍となる高S/Nの検証を実現した。
具体的に１）5mmの分解能を持つイオンドップラートモグラフィによる約500chのイオン温度・速度画像計測，２）最小で1cmの分解能を持つ2次元トムソン散乱による電子温度・密度画像計測，３）プリント基板型磁気プローブによる5mmの高精細かつ従来より１桁高い精度の磁場画像計測，４）2次元Ｘ線カメラ6組によるエネルギー分析を駆使した高エネルギー電子画像計測を開発・高精細化し，対象とする加熱・加速毎に再結合磁場を調整して10-100の高S/Nを確保した。その結果，大パワーかつ巨視的に発生する１）リコネクション電場によるイオン・電子の加速・加熱，２）電子の負ポテンシャル形成によるイオンの静電加速・加熱，さらに電流シート内に限られる中パワーの３）電流シートの電子のオーム加熱に加え，小パワーだが高エネルギーの４）Ｘ点に局在化したベータトロン的電子加速，５）セパラトリクス上の波動に起因する高エネルギー電子加速，６）プラズモイド構造に起因した加速・加熱を明らかにした。多くで実験・PICシミュレーションがタイアップした検証を行い，両者の共通理解を得ると共に，太陽観測についても観測可能な範囲で太陽衛星観測と寸法差を超えた統一理解を得た。
さらに再結合磁場の2乗に比例するイオン加熱スケーリング則を2keV超まで実証したことで，合体加熱だけで核融合炉を点火する新たな応用を開拓され，英国ベンチャー企業の新実験につながった。

Research Progress Status

令和元年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和元年度が最終年度であるため、記入しない。

Research Products

• [Int'l Joint Research] トカマクエネジー/カラム研究所(英国)
  • Country Name: UNITED KINGDOM
  • Counterpart Institution: トカマクエネジー/カラム研究所
• [Int'l Joint Research] プリンストン大学(米国)
  • Country Name: U.S.A.
  • Counterpart Institution: プリンストン大学
• [Journal Article] Overview of Merging Spherical Tokamak Experiments and Simulations for Burning, High-Beta and/or Absolute Minimum-B Plasma Formation (2021)
  • Author(s): Y. Ono, M. Inomoto, H. Tanabe, H. Yamaguchi, M. Gryaznevich, S. McNamara, P. Buxton, J. Kompulla, J. Wood, V. Nemytov, K. G. McCrements, C. Z. Cheng, H. Hara, S. Usami, R. Horiuchi
  • Journal Title: Fusion Energy 2020 Volume: - Pages: IAC/P4-3
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Global ion heating/transport during merging spherical tokamak formation (2021)
  • Author(s): H. Tanabe, Q. Cao, H. Tanaka, T. Ahmadi, A. Sawada, C. Z. Cheng and Y. Ono
  • Journal Title: Fusion Energy 2020 Volume: 1 Pages: EX/P7-20
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Controlof Electron Acceleration Process during Startup of Spherical Tokamak (2021)
  • Author(s): M. Inomoto, T. Mihara, K. Kondo, H. Kaneko, K. Kusano, S. Kamio, E. Kawamori,
  • Journal Title: Fusion Energy 2020 Volume: - Pages: EX/P7-21
  • Peer Reviewed
• [Journal Article] Multiple Plasmoid Formation and Ejection in TS-3U and TS-4U Merging Tokamaks Experiments (2021)
  • Author(s): M. Akimitsu, Q. Cao, Y. Cai, K. Miki, H. Yamaguchi, S. Kamiya, R. Someya, H. Tanaka and Y. Ono
  • Journal Title: Fusion Energy 2020 Volume: - Pages: EX/P7-7
  • Peer Reviewed
• [Journal Article] Particle Simulation on Merging Processes of Two Spherical Tokamak-Type Plasmoids Confined in a Conducting Vessel (2021)
  • Author(s): S. Usami, R. Horiuchi, T. Moritaka, Y. Ono, M. Inomoto, and H. Tanabe
  • Journal Title: Fusion Energy 2020 Volume: - Pages: TH/P3-3
  • Peer Reviewed
• [Journal Article] Plasma Heating and Current Sheet Structure in Anti-Parallel Magnetic Reconnection (2021)
  • Author(s): C. Z. Cheng, S. Inoue, Y. Ono, H. Tanabe,R. Horiuchi, S. Usami
  • Journal Title: Physics of Plasmas Volume: - Pages: -
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Two-dimensional resistive MHD simulation of the optimized plasma formation in the spherical tokamaks (2021)
  • Author(s): Tara Ahmadi, Hiroshi Tanabe and Yasushi Ono
  • Journal Title: Nuclear Fusion Volume: 61 Pages: 066001
  • DOI: 10.1088/1741-4326/abebce
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Overview of Coordinated Spherical Tokamak Research in Japan (2021)
  • Author(s): Y. Takase , A. Ejiri , T. Fujita , K. Hanada H. Idei M. Nagata, T. Onchi, Y. Ono, H. Tanaka, N. Tsujii, M. Uchida, K. Yasuda, Y. Kamada, H. Kasahara, S. Murakami, Y. Takeiri, Y. Todo, S. Tsuji-Iio,
  • Journal Title: Fusion Energy 2020 Volume: - Pages: OV/4-4
  • Peer Reviewed
• [Journal Article] Global Ion Heating During ST Merging Driven By High Guide Field Reconnection Plasma and Fusion Research (2021)
  • Author(s): H. Tanaka, H. Tanabe, Q. Cao, Y. Ono
  • Journal Title: Plasma and Fusion Research Volume: - Pages: 予定
  • Peer Reviewed
• [Journal Article] Development of Glass-Tube-Pair type Doppler Probe Array for 1D Ion-Flow Vector Measurement (2021)
  • Author(s): R. Someya, H. Tanaka, Y. Funato, Y. Cai, M. Akimitsu, H. Tanabe, Y. On
  • Journal Title: Plasma and Fusion Research Volume: - Pages: 予定
  • Peer Reviewed
• [Journal Article] Preface to Special Topic: Advances in Magnetic Reconnection Research in Space and Laboratory Plasmas, Part IV (2020)
  • Author(s): Hantao Ji and Yasushi Ono,
  • Journal Title: Physics of Plasmas Volume: 27 Pages: 032103
  • DOI: 10.1063/5.0002760
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Spontaneous Formation of Plasmoid during Early Magnetic Reconnection Phase of Two Merging Tokamaks (2020)
  • Author(s): Cao Qinghong、Cai Yunhan、Akimitsu Moe、Xiang Junguang、Ahmadi Tara、Tanaka Haruaki、Tanabe Hiroshi、Ono Yasushi
  • Journal Title: IEEJ Transactions on Electrical and Electronic Engineering Volume: 15 Pages: 1403～1404
  • DOI: 10.1002/tee.23208
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The Solar-C(EUVST) mission: the latest status (2020)
  • Author(s): Shimizu, T., Imada, S., Kawate, T., Suematsu, Y., Hara, H., Tsuzuki, T., Katsukawa, Y., Kubo, M., Ishikawa, R., Watanabe et al.
  • Journal Title: Proc. SPIE, Astronomical Telescopes + Instrumentation 2020 “Space Telescopes and Instrumentation: Ultraviolet to Gamma Ray” Volume: 11444 Pages: 114440N
  • DOI: 10.1117/12.2560887
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A Solar Magnetic-fan Flaring Arch Heated by Non-thermal Particles and Hot Plasma from an X-ray Jet Eruption (2020)
  • Author(s): Lee, K-S.; Hara, H.; Watanabe, K.; Joshi, A. D.; Brooks, D. H.; Imada, S.; Prasad, A.; Dang, P.; Shimizu, T.; Savage, S. L.; Moore, R.; Panesar, N. K.; Reep, J. W.
  • Journal Title: Astrophysical Journal Volume: 895 Pages: 42
  • DOI: 10.3847/1538-4357/ab8bce
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Locating Hot Plasma in Small Flares using Spectroscopic Overlappogram Data (2020)
  • Author(s): Harra, L.; Matthews, S.; Long, D.; Hasegawa, T.; Lee, K-S; Reeves, K. K.; Shimizu, T.; Hara, H.; Woods, M.
  • Journal Title: Solar Physics Volume: 295 Pages: 34
  • DOI: 10.1007/s11207-020-01602-6
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Development of Doppler Probe Array with Two Pairs of View-lines for 1D Ion Flow Vector Measurement (2020)
  • Author(s): Someya Ryo、Tanaka Haruaki、Cao Qinghong、Cai Yunhan、Tanabe Hiroshi、Ono Yasushi
  • Journal Title: IEEJ Transactions on Fundamentals and Materials Volume: 140 Pages: 502～503
  • DOI: 10.1541/ieejfms.140.502
  • Peer Reviewed
• [Journal Article] シミュレーションのための乱数入門 (2020)
  • Author(s): 佐竹真介, 菅野龍太郎, 本多充, 宇佐見俊介
  • Journal Title: プラズマ・核融合学会誌 Volume: 96 Pages: 290-299
• [Journal Article] Reconnection heating experiments and simulations for torus plasma merging start-up (2019)
  • Author(s): Ono Y.、Inoue S.、Tanabe H.、Cheng C.Z.、Hara H.、Horiuchi R.
  • Journal Title: Nuclear Fusion Volume: 59 Pages: 076025～076025
  • DOI: 10.1088/1741-4326/ab14a4
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Effects of reconnection downstream conditions on electron parallel acceleration during the merging start-up of a spherical tokamak (2019)
  • Author(s): Inomoto M.、Ushiki T.、Guo X.、Sugawara T.、Kondo K.、Mihara T.、Minami Y.、Inai Y.、Kaneko H.、Yanai R.、Takahata Y.、Tanabe H.、Ono Y.、Sanpei A.、Kamio S.
  • Journal Title: Nuclear Fusion Volume: 59 Pages: 086040～086040
  • DOI: 10.1088/1741-4326/ab1e0f
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Investigation of fine structure formation of guide field reconnection during merging plasma startup of spherical tokamak in TS-3U (2019)
  • Author(s): Tanabe H.、Cao Q.、Tanaka H.、Ahmadi T.、Akimitsu M.、Sawada A.、Inomoto M.、Ono Y.
  • Journal Title: Nuclear Fusion Volume: 59 Pages: 086041～086041
  • DOI: 10.1088/1741-4326/ab1cdf
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Particle simulation studies of merging processes of two spherical-tokamak-type plasmoids (2019)
  • Author(s): Horiuchi Ritoku、Usami Shunsuke、Moritaka Toseo、Ono Yasushi
  • Journal Title: Physics of Plasmas Volume: 26 Pages: 092101～092101
  • DOI: 10.1063/1.5104281
  • Peer Reviewed
• [Journal Article] Dependence of the pickup-like ion effective heating on the poloidal and toroidal magnetic fields during magnetic reconnection (2019)
  • Author(s): Usami Shunsuke、Horiuchi Ritoku、Ohtani Hiroaki、Ono Yasushi、Inomoto Michiaki、Tanabe Hiroshi
  • Journal Title: Physics of Plasmas Volume: 26 Pages: 102103～102103
  • DOI: 10.1063/1.5099423
  • Peer Reviewed
• [Journal Article] Recent Progress in High Resolution 2D Imaging Measurements of Reconnection Heating during Merging Plasma Startup in TS-3 (2019)
  • Author(s): TANABE Hiroshi、CAO Qinghong、TANAKA Haruaki、AHMADI Tara、AKIMITSU Moe、SAWADA Asuka、INOMOTO Michiaki、ONO Yasushi
  • Journal Title: Plasma and Fusion Research Volume: 14 Pages: 3401110～3401110
  • DOI: 10.1585/pfr.14.3401110
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Analysis of Energy Conversion during Co- and Counter-Helicity Spheromak Merging by Particle-In-Cell Simulation (2019)
  • Author(s): NISHIDA Kento、HORIUCHI Ritoku、ONO Yasushi
  • Journal Title: Plasma and Fusion Research Volume: 14 Pages: 3401145～3401145
  • DOI: 10.1585/pfr.14.3401145
  • Peer Reviewed
• [Journal Article] Horn-Shaped Structure Attached to the Ring-Shaped Ion Velocity Distribution during Magnetic Reconnection with a Guide Field (2019)
  • Author(s): USAMI Shunsuke、HORIUCHI Ritoku、OHTANI Hiroaki
  • Journal Title: Plasma and Fusion Research Volume: 14 Pages: 3401137～3401137
  • DOI: 10.1585/pfr.14.3401137
  • Peer Reviewed
• [Journal Article] Nonthermal Motions in a Polar Coronal Hole Measured with Hinode/EIS during an on-Orbit Partial Solar Eclipse on 2017 August 21 (2019)
  • Author(s): Hara Hirohisa
  • Journal Title: The Astrophysical Journal Volume: 887 Pages: 122～122
  • DOI: 10.3847/1538-4357/ab50bf
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Energy transfer and electron energization in collisionless magnetic reconnection for different guide-field intensities (2019)
  • Author(s): Pucci F.、Usami S.、Ji H.、Guo X.、Horiuchi R.、Okamura S.、Fox W.、Jara-Almonte J.、Yamada M.、Yoo J.
  • Journal Title: Physics of Plasmas Volume: 25 Pages: 122111～122111
  • DOI: 10.1063/1.5050992
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] First Global Doppler Tomography Measurement of Ion Heating of Merging Tokamak Plasmas (2019)
  • Author(s): Tanaka Haruaki、Ono Yasushi、Tanabe Hiroshi、Cao Qinghong
  • Journal Title: IEEJ Transactions on Fundamentals and Materials Volume: 139 Pages: 358～359
  • DOI: 10.1541/ieejfms.139.358
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Experimental Study of Magnetic Reconnection in Partially Ionized Plasmas Using Rotating Magnetic Field (2019)
  • Author(s): TAKAHATA Yoshifumi、YANAI Ryoma、INOMOTO Michiaki
  • Journal Title: Plasma and Fusion Research Volume: 14 Pages: 3401054～3401054
  • DOI: 10.1585/pfr.14.3401054
• [Presentation] Interdisciplinary Study of Reconnection Heating for Space and Laboratory Plasmas (Invited) (2020)
  • Author(s): Y. Ono, H. Tanabe, C. Z. Chemg, H. Hara, R. Horiuchi, S. Usami
  • Organizer: 4th Asia-Pacific Conference on Plasma Physics
  • Int'l Joint Research / Invited
• [Presentation] Role of parallel electron current channel in high guide field magnetic reconnection (Invited) (2020)
  • Author(s): M. Inomoto, T. Mihara, K. Kondo, K. Kusano, T. Tanabe, Y. Ono, S. Kamio
  • Organizer: 4th Asia-Pacific Conference on Plasma Physics
  • Int'l Joint Research / Invited
• [Presentation] Highlights of magnetic reconnection physics (Invited) (2020)
  • Author(s): C. Z. Cheng, S. Inoue, Y. Ono, H. Tanabe, R. Hiriuchi, S. Usami
  • Organizer: 4th Asia-Pacific Conference on Plasma Physics
  • Int'l Joint Research / Invited
• [Presentation] Energy Partition and Temperature Anisotropy in Merging Processes (Invited) (2020)
  • Author(s): Ritoku Horiuchi, Shunsuke Usami, Toseo Moritaka, and Yasushi Ono
  • Organizer: 4th Asia-Pacific Conference on Plasma Physics
  • Int'l Joint Research / Invited
• [Presentation] Global/micro-scale fine structure formation process of magnetic reconnection in high field plasma merging experiments (Invited) (2020)
  • Author(s): Hiroshi Tanabe, Qinghong Cao, Haruaki Tanaka, Tara Ahmadi, Moe Akimitsu, Ryo Someya, Mikhail Gryaznevich, Chio-Zong Cheng, Michiaki Inomoto and Yasushi Ono
  • Organizer: 4th Asia-Pacific Conference on Plasma Physics
  • Int'l Joint Research / Invited
• [Presentation] Magnetic reconnection studies in High Field Spherical Tokamak (Invited) (2020)
  • Author(s): Mikhail Gryaznevich, Tokamak Energy Ltd and The University of Tokyo teams
  • Organizer: 4th Asia-Pacific Conference on Plasma Physics
  • Int'l Joint Research / Invited
• [Presentation] Non-Maxwellian Velocity Distribution Formed by Pick-Up-Like Behaviors of Protons during Magnetic Reconnection (2020)
  • Author(s): Shunsuke Usami, Ritoku Horiuchi, Hiroaki Ohtani
  • Organizer: 4th Asia-Pacific Conference on Plasma Physics
  • Int'l Joint Research / Invited
• [Presentation] Development of X-ray tomography diagnostic for TS-6 Tokamak Merging Experiment (2020)
  • Author(s): Junguang Xiang, Shinjiro Takeda, Yunhan Cai, Qinghong Cao, Hiroshi Tanabe, Yasushi Ono
  • Organizer: 4th Asia-Pacific Conference on Plasma Physics
  • Int'l Joint Research
• [Presentation] Development of 1D ion flow vector measurement by use of Doppler probe array with two pairs of view-lines (2020)
  • Author(s): R. Someya, H. Tanaka, Q. Cao, Y. Cai, H. Tanabe, Y. Ono
  • Organizer: 4th Asia-Pacific Conference on Plasma Physics
  • Int'l Joint Research
• [Presentation] Development of 2D MHD simulation of the double null spherical tokamak formation in ST40 device (2020)
  • Author(s): Tara Ahmadi, Yasushi Ono
  • Organizer: 4th Asia-Pacific Conference on Plasma Physics
  • Int'l Joint Research
• [Presentation] Plasmoid Formation and Ejection in TS-3U Merging Tokamaks Experiment (2020)
  • Author(s): Moe Akimitsu, Qinghong Cao, Yunhan Cai, Keisuke Miki, Haruka Yamaguchi, Shun, Kamiya, Ryo Someya, Haruaki Tanaka, Yasushi Ono
  • Organizer: 4th Asia-Pacific Conference on Plasma Physics
  • Int'l Joint Research
• [Presentation] Reconnection startup and heating scenario for burning spherical tokamak plasmas (Invited) (2020)
  • Author(s): Yasushi ONO, Hiroshi Tanabe, Shunsuke Usami，Rutoku Horiuchi, Chio-Zong Cheng
  • Organizer: The 29th International Toki Conference on Plasma and Fusion Research
  • Int'l Joint Research / Invited
• [Presentation] Multiple Ion Heating In Early Reconnection Phase Induced By Plasmoid Production (2020)
  • Author(s): H. Tanaka, H. Tanabe, O. Cao, Y. Ono
  • Organizer: The 29th International Toki Conference on Plasma and Fusion Research
  • Int'l Joint Research
• [Presentation] Exploration of high field reconnection heating in merging spherical tokamak formation experiments (2020)
  • Author(s): H. Tanabe, M. Gryaznevich, Q. Cao, H. Tanaka, T. Ahmadi, M. Akimitsu, Y. Cai, R. Someya, C. Z. Cheng, M. Inomoto and Y. Ono
  • Organizer: 62th Annual Meeting of the APS Division of Plasma Physics
  • Int'l Joint Research
• [Presentation] ST40・TS-6における高磁場リコネクション加熱を応用した CS-free球状トカマク急速立ち上げシナリオの開拓 (2020)
  • Author(s): 田辺博士, 曹慶紅, 秋光萌, 田中遥暁, Tara Ahmadi, 染谷諒, 蔡雲漢, Mikhail Gryaznevich, Vladimir Shevchenko, Chio-Zong Cheng, 井通暁, 小野靖
  • Organizer: 第37回プラズマ・核融合学会年会
• [Presentation] Experimental study of energy conversion/transport process during magnetic reconnection in flux tube merging experiments (2020)
  • Author(s): H. Tanabe, Q. Cao, H. Tanaka, M. Akimitsu, T. Ahmadi, R. Someya, M. Inomoto and Y. Ono
  • Organizer: AGU Fall meeting 2020
  • Int'l Joint Research
• [Presentation] リコネクション加熱研究の成果と実験・観測・シミュレーション連携 (2020)
  • Author(s): 小野靖
  • Organizer: 第28回ひので・実験室研究会
• [Presentation] PIC simulation study of guide-field dependence of ST merging process (2020)
  • Author(s): 堀内利得
  • Organizer: 第28回ひので・実験室研究会
• [Presentation] Thermal structures and plasma motions in plasma sheet of eruptive solar flares (2020)
  • Author(s): 原弘久
  • Organizer: 第28回ひので・実験室研究会
• [Presentation] 高磁場合体・リコネクション加熱実験における大域的構造形成 (2020)
  • Author(s): 田辺博士
  • Organizer: 第28回ひので・実験室研究会
• [Presentation] 太陽観測の現状と今後何を目指すか? (2020)
  • Author(s): 清水敏文
  • Organizer: 第28回ひので・実験室研究会
• [Presentation] Plasma heating and current sheet structure in driven magnetic reconnection (2020)
  • Author(s): C. Z. Cheng
  • Organizer: 第28回ひので・実験室研究会
• [Presentation] 粒子シミュレーションによる磁気リコネクション加熱機構研究の進展 (2020)
  • Author(s): 宇佐見俊介
  • Organizer: 第28回ひので・実験室研究会
• [Presentation] 高ガイド磁場リコネクション実験における面内電場抑制による下流域粒子加速の可能性 (2020)
  • Author(s): 井通暁
  • Organizer: 第28回ひので・実験室研究会
• [Presentation] 高ガイド磁場下でのリコネクションにおける沿磁力線電子加速 (2020)
  • Author(s): 井 通暁、三原卓巳、近藤恭平、草野一、金子健一郎、篠原淳志、前田陽平、田辺博士、小野靖、河森栄一郎
  • Organizer: 第37回プラズマ・核融合学会年会
• [Presentation] 高ガイド磁場リコネクションにおける面内電場発生機構の実験的検証 (2020)
  • Author(s): 草野一，井通暁，三原卓巳，近藤恭平，金子拓，小野靖
  • Organizer: 第37回プラズマ・核融合学会年会
• [Presentation] 共同討論：リコネクション加熱，非熱的粒子加速，プラズモイド物理，波動現象，巨視的磁力管緩和，弱電離リコネクション (2020)
  • Author(s): 小野靖
  • Organizer: 第27回ひので・実験室研究会
• [Presentation] UTSTリコネクション実験 (2020)
  • Author(s): 井通暁
  • Organizer: 第27回ひので・実験室研究会
• [Presentation] 太陽外層プラズマ大気での磁気リコネクション: エネルギー注入の観測 (2020)
  • Author(s): 清水敏文
  • Organizer: 第27回ひので・実験室研究会
• [Presentation] ひのでEISによるリコネクション領域周辺のスペクトルとEUVSTで目指す陽子温度診断 (2020)
  • Author(s): 川手 朋子，清水敏文
  • Organizer: 第27回ひので・実験室研究会
• [Presentation] 太陽フレアと光球磁場発展 (2020)
  • Author(s): 長谷川隆祥, 清水敏文
  • Organizer: 第27回ひので・実験室研究会
• [Presentation] リコネクション加熱のPICシミュレーション (2020)
  • Author(s): 宇佐見俊介
  • Organizer: 第27回ひので・実験室研究会
• [Presentation] プラズマ合体のPICシミュレーション (2020)
  • Author(s): 堀内利得
  • Organizer: 第27回ひので・実験室研究会
• [Presentation] 太陽フレアの磁気リコネクション域研究・最近の進展 (2020)
  • Author(s): 原弘久
  • Organizer: 第27回ひので・実験室研究会
• [Presentation] 高磁場合体・リコネクション加熱実験における大域的構造形成 (2020)
  • Author(s): 田辺博士, 曹慶紅, 田中遥暁, Tara Ahmadi, 秋光萌, 染谷諒, Mikhail Gryaznevich, C. Z. Cheng, 井通暁, 小野靖,
  • Organizer: 第27回ひので・実験室研究会
• [Presentation] プリント型高精細プローブを用いたプラズモイド実験 (2020)
  • Author(s): 秋光萌，田辺博士，小野靖
  • Organizer: 第27回ひので・実験室研究会
• [Presentation] Kinetic Alfven wave activities during reconnection (2020)
  • Author(s): Tara Ahmadi, Yasushi Ono
  • Organizer: 第27回ひので・実験室研究会
• [Presentation] Scaling Physics of Reconnection Heating for ST Merging Startup Experiments (Invited) (2019)
  • Author(s): Yasushi Ono, H. Tanabe, M. Inomoto, G. H. Cao, S. Kamiya, H. Tanaka, H. Yamaguchi, C. Z. Cheng, S. Usami, R. Horiuchi, M. Gryaznevich
  • Organizer: International Spherical Tokamak Workshop (ITSTW) 2019
  • Int'l Joint Research / Invited
• [Presentation] Global ion heating characteristics of magnetic reconnection during two tokamak plasma merging experiment (2019)
  • Author(s): H. Tanaka, H. Tanabe, Y. Ono
  • Organizer: 61th Annual Meeting of the APS Division of Plasma Physics
  • Int'l Joint Research
• [Presentation] The new reconstruction method for velocity profile in TS6 device: Phantom and initial results (2019)
  • Author(s): T. Ahmadi, H. Tanabe, Y. Ono
  • Organizer: 61th Annual Meeting of the APS Division of Plasma Physics
  • Int'l Joint Research
• [Presentation] on and electron heating characteristics of magnetic reconnection in high field flux tube merging experiments (plenary) (2019)
  • Author(s): H. Tanabe, M. Gryaznevich, Q. Cao, H. Tanaka, T. Ahmadi, M. Akimitsu, C. Z. Cheng, M. Inomoto and Y. Ono
  • Organizer: HINODE13/IPELS2019
  • Int'l Joint Research / Invited
• [Presentation] Kinetic Theory of Driven Magnetic Reconnection (Invited) (2019)
  • Author(s): C. Z. Cheng S. Inoue, Y. Ono, H. Tanabe, R Horiuchi
  • Organizer: HINODE13/IPELS2019
  • Int'l Joint Research / Invited
• [Presentation] Plasmoid and blob of current sheet in TS-6 torus plasma merging experiment (2019)
  • Author(s): M. Akimitsu, Q. Cao, M. Keisuke, H. Tanabe, Y. Ono
  • Organizer: HINODE13/IPELS2019
  • Int'l Joint Research / Invited
• [Presentation] Reconnection Heating Experiments in TS-6, MAST and ST-40 (Invited) (2019)
  • Author(s): Y. Ono
  • Organizer: 5th UNIST- Kyoto Univ. Workshop on “Physics validation and control of turbulent transport and MHD in fusion plasmas
  • Int'l Joint Research / Invited
• [Presentation] Experimental study of reconnection heating/transport process and its application to high temperature spherical tokamak formation (Invited) (2019)
  • Author(s): H. Tanabe, Q. Cao, H. Tanaka, T. Ahmadi, M. Akimitsu, M. Inomoto and Y. Ono
  • Organizer: 9th East-Asia School and Workshop on Laboratory, Space and Astrophysical Plasmas (EASW9)
  • Int'l Joint Research / Invited
• [Presentation] Recent progress of reconnection heating experiments in ST-40 and TS-6 (Invited) (2019)
  • Author(s): Y. Ono
  • Organizer: MPPC (MAX PLANCK PRINCETON CENTER) Workshop 2019
  • Int'l Joint Research / Invited
• [Presentation] Fine structure formation by reconnection heating/transport process in toroidal plasma merging experiments (Invited) (2019)
  • Author(s): H. Tanabe, Q. Cao, M. Akimitsu, A. Sawada, H. Tanaka, T. Ahmadi, M. Inomoto and Y. Ono
  • Organizer: MPPC (MAX PLANCK PRINCETON CENTER) Workshop 2019
  • Int'l Joint Research / Invited
• [Presentation] Formation of anomalous velocity distribution based on the pickup-like ion motions during magnetic reconnection (2019)
  • Author(s): Shunsuke Usami, Ritoku Horiuchi, Hiroaki Ohtani
  • Organizer: HINODE13/IPELS2019
  • Int'l Joint Research / Invited
• [Presentation] Anomalous Velocity Distributions Formed by Pick-Up-Like Protons in Magnetic Reconnection (2019)
  • Author(s): Shunsuke Usami, Ritoku Horiuchi, Hiroaki Ohtani
  • Organizer: 61st Annual Meeting of Division of Plasma Physics
  • Int'l Joint Research
• [Presentation] Scaling Physics of Reconnection Heating and Acceleration in Tokamak Merging Experimentsd (2019)
  • Author(s): Y. Ono. H. Tanabe, S. Kamiya, H. Tamaka, Y. Cai, Q. Cao, X. Jungang, M. Gryaznavich, S. Usami, R. Horuichi
  • Organizer: 61th Annual Meeting of the APS Division of Plasma Physics
  • Int'l Joint Research
• [Presentation] Micro/macro-scale ion heating and transport process of magnetic reconnection during merging plasma startup of TS-6 spherical tokamak (2019)
  • Author(s): H. Tanabe, Q. Cao, H. Tanaka, M. Akimitsu, T. Ahmadi, R. Someya, M. Inomoto, Y. Ono
  • Organizer: 61th Annual Meeting of the APS Division of Plasma Physics
  • Int'l Joint Research
• [Presentation] Strange Shapes of Ion Velocity Distribution during Magnetic Reconnection in the Presence of a Guide Field (2019)
  • Author(s): Shunsuke Usami, Ritoku Horiuchi, and Hiroaki Ohtani
  • Organizer: The 28th International Toki Conference (ITC28)
  • Int'l Joint Research
• [Presentation] Global ion heating characteristics of magnetic reconnection during two tokamak plasma merging experiment (2019)
  • Author(s): H. Tanaka,,H. Tanabe, Y. Ono
  • Organizer: 61th Annual Meeting of the APS Division of Plasma Physics
  • Int'l Joint Research
• [Presentation] Measurement of Soft X-ray emission spatial distribution during high guide field reconnection in UTST (2019)
  • Author(s): T. Mihara, M. Inomoto, K. Kondo, H. Kaneko, K. Kusano, H. Tanabe, Y. Ono
  • Organizer: 28th International Toki Conference (ITC-28)
  • Int'l Joint Research
• [Presentation] Improvement of Plasma Shape Reconstruction in UTST Plasma by Normalization of Flux and Field Equations (2019)
  • Author(s): K. Kondo, M. Inomoto, M. Itagaki, T. Ushiki, “
  • Organizer: 28th International Toki Conference (ITC-28)
  • Int'l Joint Research
• [Presentation] Development of High-Resolution 2D Magnetic Probes Using Printed Circuits (2019)
  • Author(s): Moe Akimitsu, Yasushi Ono
  • Organizer: UTokyo-SNU Joint Seminar in Electrical Engineering 2019
  • Int'l Joint Research
• [Presentation] 位相変調型反射計によるモード変換量の測定 (2019)
  • Author(s): 井 通暁，近藤恭平，河森栄一郎，徳沢季彦
  • Organizer: 第36回プラズマ・核融合学会年会
  • Int'l Joint Research
• [Presentation] 超解像イオンドップラートモグラフィを用いた高磁場合体・磁気リコネクションのイオン加熱・輸送過程の研究 (2019)
  • Author(s): 田辺博士，曹慶紅，田中遥暁，Tara Ahmadi，秋光萌，Thomas O'Gorman，Mikhail Gryaznevich，井通暁，小野靖
  • Organizer: 第36回プラズマ・核融合学会年会
• [Presentation] プラズマ合体実験における修正コーシ ー条件面法の適用と境界積分方程式の重みづけによる再構成精度の改善 (2019)
  • Author(s): 近藤恭平，井通暁，板垣正文
  • Organizer: 第36回プラズマ・核融合学会年会
• [Presentation] 高ガイド磁場下磁気リコネクション下で生成された高エネルギー電子空間分布の測定 (2019)
  • Author(s): 三原卓巳，井通暁，近藤恭平，金子拓，草野一，田辺博士，小野靖
  • Organizer: 第36回プラズマ・核融合学会年会
• [Presentation] 高ガイド磁場下リコネクション時の磁場揺動発生と大域的磁場構造との関連 (2019)
  • Author(s): 金子拓，井通暁，近藤恭平，田辺博士，小野靖
  • Organizer: 第36回プラズマ・核融合学会年会
• [Funded Workshop] HINODE13/IPELS2019 (2020)