Hemmi Tsutomu

Profile Information

Affiliation: Group Leader, Naka Institute for Fusion Science and Technology, Department of ITER Project, Superconducting Magnet Technology Group, National Institutes for Quantum Science and Technology

Degree: Ph. D(Sep, 2005)

J-GLOBAL ID: 200901032686760976
researchmap Member ID: 6000000739

External link: http://www.qst.go.jp/

Research Interests

超伝導工学

Research Areas

Research History

Apr, 2024 - Present

Senior Principal Researcher, Rokkasho Institute for Fusion Energy, Department of Fusion Reactor Systems Research, Fusion Reactor Design Group, National Institutes for Quantum Science and Technology
Apr, 2024 - Present

Group Leader, Naka Institute for Fusion Science and Technology, Department of ITER Project, Superconducting Magnet Technology Group, National Institutes for Quantum Science and Technology
Oct, 2023 - Mar, 2024

Senior Principal Researcher, Rokkasho Fusion Institute, Dept. of Fusion Reactor Systems Research, Fusion Reactor Design Group, National Institutes for Quantum Science and Technology
Apr, 2023 - Mar, 2024

Group Leader, Superconducting Magnet Technology Group, Department of ITER project, Naka Institute, Quantum Energy Directorate,, National Institutes for Quantum Science and Technology
Oct, 2021 - Mar, 2023

Senior Principal Researcher, Superconducting Magnet Technology Group, Department of ITER project, Naka Institute, Quantum Energy Directorate, National Institutes for Quantum and Radiological Science and Technology
Jan, 2020 - Oct, 2022

Magnet Engineer, TF Coil Section, ITER Organization
Jul, 2021 - Sep, 2021

Senior Principal Researcher, Superconducting Magnet Technology Group, Department of ITER project, Naka Fusion Institute, National Institutes for Quantum and Radiological Science and Technology
Apr, 2016 - Jun, 2021

Principal Researcher, Superconducting Magnet Technology Group, Department of ITER project, Naka Fusion Institute, National Institutes for Quantum and Radiological Science and Technology
Nov, 2017 - Dec, 2019

Magnet Engineer, Sector Module Assembly Section, ITER Organization
Jul, 2014 - Mar, 2016

Assistant Principal Researcher, Superconducting Coil Technology Group, Japan Atomic Energy Agency
Apr, 2007 - Jun, 2014

Reseacher, Superconducting Magnet Technology Group, Japan Atomic Energy Agency
Oct, 2005 - Mar, 2007

Postdoctoral Fellow, National Institute for Fusion Science

Education

Awards

Dec, 2023

ITER Award 2023, Contribution on Completion of All ITER Toroidal Field Coils, ITER Organization

ITER TF Coil Project Team
Apr, 2020

Commendation for Science and Technology by the Minister of MEXT, Science and Technology Award for Development, Development of ITER Central Solenoid Conductor, MEXT

NUNOYA Yoshihiko, HEMMI Tsutomu, SUWA Tomone, TAKAHASHI Yoshikazu, TSUTSUMI Fumiaki
Mar, 2015

Masaji Yoshikawa Memorial Prize for Fusion Energy, Fusion Energy Forum of Japan

HEMMI Tsutomu
May, 2013

Outstanding presentation award, Evaluation of degraded position in ITER CS conductor sample using neutron diffraction technique, Cryogenics and Superconductivity Society of Japan

HEMMI Tsutomu

Papers

Lessons learned from European and Japanese production of ITER toroidal field coils

Tsutomu Hemmi, Boris Bellesia, Shin Hasegawa, Piergiorgio Aprili, Alessandro Bonito-Oliva, Eva Boter, Maria Paz Casas, Marc Cornelis, Kenji Gomikawa, Robert Harrison …

Nuclear Fusion, Apr 15, 2024 Peer-reviewedLead authorCorresponding author
Series Production of ITER TF Coil in Japan-Double-Pancake and Winding Pack Insulation

N. Koizumi, K. Matsui, T. Hemmi, H. Kajitani, M. Nakamoto, M. Yamane, K. Sakaguchi

IEEE Transactions on Applied Superconductivity, 28(3), Apr 1, 2018 Peer-reviewed
New Inspection Method of Termination Resistance at Room Temperature for ITER TF Coil

Hideki Kajitani, Tsutomu Hemmi, Yasuhiro Uno, Tatsuya Shimizu, Minoru Yamane, Mio Nakamoto, Kunihiro Matsui, Norikiyo Koizumi

IEEE Transactions on Applied Superconductivity, 28(3), Apr 1, 2018 Peer-reviewed
Test of ITER-TF Joint Samples With NIFS Test Facilities

Shinsaku Imagawa, Hideki Kajitani, Tetsuhiro Obana, Suguru Takada, Shinji Hamaguchi, Hirotaka Chikaraishi, Kazuya Takahata, Kunihiro Matsui, Tsutomu Hemmi, Norikiyo Koizumi

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 28(3), Apr, 2018 Peer-reviewed
Evaluation of Thermal Strain Induced in Components of Nb3Sn Strand during Cooling

Tomone Suwa, Tsutomu Hemmi, Toru Saito, Yoshikazu Takahashi, Koizumi Norikiyo, Vladimir Luzin, Hiroshi Suzuki, Stefanus Harjo

IEEE Transactions on Applied Superconductivity, 28(3), Apr 1, 2018 Peer-reviewed
Series production of ITER toroidal field coil double pancakes in Japan

N. Koizumi, H. Kajitani, K. Matsui, T. Hemmi, M. Yamane, S. Ando, M. Nakamoto, K. Takano

Fusion Engineering and Design, 124 99-103, Nov 1, 2017 Peer-reviewed
Development of ITER Toroidal Field Coil in Japan

Tsutomu Hemmi, Kunihiro Matsui, Hideki Kajitani, Takeru Sakurai, Minoru Yamane, Takumi Mizutani, Kaori Sakaguchi, Mio Nakamoto, Toshihide Nakano, Katsutoshi Takano …

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 27(4), Jun, 2017 Peer-reviewed
Evaluation of Bending Strain in Nb3Sn Strands of CIC Conductor Using Neutron Diffraction

Tsutomu Hemmi, Stefanus Harjo, Hideki Kajitani, Tomone Suwa, Toru Saito, Kazuya Aizawa, Kozo Osamura, Norikiyo Koizumi

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 27(4), Jun, 2017
Full scale trials for qualification of the manufacture of the ITER TF coils in Japan

Kunihiro Matsui, Tsutomu Hemmi, Hideki Kajitani, Minoru Yamane, Takumi Mizutani, Toshihide Nakano, Katsutoshi Takano, Shinji Ando, Norikiyo Koizumi

FUSION ENGINEERING AND DESIGN, 109 574-580, Nov, 2016 Peer-reviewed
Performance Analysis of Mass-Produced Nb3Sn Conductor for Central Solenoid in ITER

Yoshihiro Nabara, Tomone Suwa, Hidemasa Ozeki, Hideki Kajitani, Takeru Sakurai, Tsutomu Hemmi, Masahide Iguchi, Yoshihiko Nunoya, Yoshikazu Takahashi, Takaaki Isono …

IEEE Transactions on Applied Superconductivity, 26(4), Jun 1, 2016 Peer-reviewed
Progress in Procurement of ITER Toroidal Field Coil in Japan

N. Koizumi, M. Nakahira, K. Matsui, T. Hemmi, M. Iguchi, H. Kajitani, T. Sakurai, K. Takano

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 26(4), Jun, 2016 Peer-reviewed
Overview of the ITER Toroidal Field Magnet System Integration

A. Foussat, N. Mitchell, R. Gallix, M. Gandel, K. Hamada, S. Koczorowski, K. Seo, C. Boyer, M. Le Rest, B. Martin …

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 26(4), Jun, 2016 Peer-reviewed
Manufacture of Toroidal Field Coil in ITER

T. Hemmi

J. Plasma Fusion Res., 92(6) 402-407, Jun, 2016 Peer-reviewed
Development of Evaluation Procedure for Superconductivity of CIC Conductor for Fusion Reactor

Hideki Kajitani, Atsushi Ishiyama, Kou Agatsuma, Haruyuki Murakami, Norikiyo Koizumi

TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan), 51(3) 71-78, Apr, 2016 Peer-reviewed
Cryogenic Loading Devices for Materials Science & Engineering Studies at J-PARC

HARJO Stefanus, AIZAWA Kazuya, KAWASAKI Takuro, NAKAMOTO Tatsushi, HEMMI Tsutomu, IWAHASHI Takaaki

日本原子力研究開発機構JAEA-Conf(Web), (2015-002) 3.7.2 (WEB ONLY), Feb, 2016
Evaluation of ITER TF Coil Joint Performance

Hideki Kajitani, Tsutomu Hemmi, Takumi Mizutani, Kunihiro Matsui, Minoru Yamane, Tetsuhiro Obana, Suguru Takada, Shinji Hamaguchi, Kazuya Takahata, Shinsaku Imagawa …

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 25(3), Jun, 2015 Peer-reviewed
Non-Destructive Examination of Jacket Sections for ITER Central Solenoid Conductors

Y. Takahashi, T. Suwa, Y. Nabara, H. Ozeki, T. Hemmi, Y. Nunoya, T. Isono, K. Matsui, K. Kawano, M. Oshikiri …

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 25(3), Jun, 2015 Peer-reviewed
Behavior of Nb3Sn Cable Assembled With Conduit for ITER Central Solenoid

Yoshihiro Nabara, Tomone Suwa, Yoshikazu Takahashi, Tsutomu Hemmi, Hideki Kajitani, Hidemasa Ozeki, Takeru Sakurai, Masahide Iguchi, Yoshihiko Nunoya, Takaaki Isono …

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 25(3), Jun, 2015 Peer-reviewed
Analysis of Internal-Tin Nb3Sn Conductors for ITER Central Solenoid

Tomone Suwa, Yoshihiro Nabara, Hidemasa Ozeki, Tsutomu Hemmi, Takaaki Isono, Yoshikazu Takahashi, Katsumi Kawano, Masayuki Oshikiri, Fumiaki Tsutsumi, Kazuyuki Shibutani …

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 25(3), Jun, 2015 Peer-reviewed
Internal strain measurement for a Nb3Sn rutherford cable using neutron diffraction

K. Takahashi, H. Oguro, S. Awaji, K. Watanabe, S. Harjo, T. Kawasaki, K. Aizawa, T. Hemmi, T. Nakamoto

IEEE Transactions on Applied Superconductivity, 25(3), Jun 1, 2015 Peer-reviewed

Misc.

Thermal Strain in Superconducting Nb₃Sn Strand at Cryogenic Temperature

HARJO Stefanus, KAWASAKI Takuro, HEMMI Tsutomu, ITO Takayoshi, NAKAMOTO Tatsushi, AIZAWA Kazuya

JPS Conference Proceedings (Web), 8, 2015
中性子回折を用いたNb₃Snラザフォードケーブルの内部ひずみ測定

高橋弘紀, 小黒英俊, 淡路智, 渡辺和雄, HARJO Stefanus, 川崎卓郎, 相澤一也, 辺見努, 中本建志

低温工学・超電導学会講演概要集, 88th 51, Dec 4, 2013
ITER-TF導体接続抵抗測定試験における高温超伝導ブスバー追加による銅ブスバーの発熱低減

佐浦啓介, 今川信作, 尾花哲浩, 濱口真司, 高田卓, 力石浩孝, 夏目恭平, 高畑一也, 梶谷秀樹, 松井邦浩 …

低温工学・超電導学会講演概要集, 88th, 2013
Winding Trials for ITER Toroidal Field Coils

MATSUI Kunihiro, KOIZUMI Norikiyo, HEMMI Tsutomu, NAKAJIMA Hideo, KIMURA Satoshi, SHIMADA Mamoru

47(3) 160-165, Mar 25, 2012
Heat Treatment Trials for ITER Toroidal Field Coils

MATSUI Kunihiro, HEMMI Tsutomu, KOIZUMI Norikiyo, NAKAJIMA Hideo, KIMURA Satoshi, NAKAMOTO Kazunari

47(3) 166-171, Mar 25, 2012
低温変形中のその場中性子回折の開発

STEFANUS Harjo, 岩橋孝明, 阿部淳, 辺見努, 相澤一也, 中本建志, 金新哲, 菅野未知中

材料とプロセス(CD-ROM), 25(2), 2012
中性子回折を用いたITER CS導体試験サンプルの劣化位置の評価

辺見努, HARJO Stefanus, 布谷嘉彦, 梶谷秀樹, 小泉徳潔, 相澤一也, 町屋修太郎, 長村光造

低温工学・超電導学会講演概要集, 86th, 2012
RHQ-Nb₃Al線材のA15相熱処理での中性子回折測定

JIN Xinzhe, 中本建志, 土屋清澄, 山本明, 荻津透, HARJO Stefanus, 辺見努, 伊藤崇芳, 菊池章弘, 竹内孝夫

低温工学・超電導学会講演概要集, 86th, 2012
22nd International Conference on Magnet Technology [MT-22]

Journal of the Cryogenics and Superconductivity Society of Japan, 46(10) 592-601, Oct 25, 2011
Stability Test of RHQT Nb_3Al Cable-in-conduit Conductor

KOIZUMI Norikiyo, MATSUI Kunihiro, HEMMI Tsutomu, NAKAJIMA Hideo, TAKEUCHI Takao, BANNO Nobuya, KIKUCHI Akihiro

Journal of the Cryogenic Society of Japan, 46(8) 495-499, Aug 25, 2011
超伝導複合材料における熱応力と高温実験

HENMI TSUTOMU, MACHIYA SHUTARO, OSAMURA KOZO, SUTEFANUSU HARUYO, ITO TAKAYOSHI

日本原子力研究開発機構JAEA-Review(Web), (2011-014) 1.4.8 (WEB ONLY), Jun, 2011
ITER TFコイル用大型超伝導導体の歪測定

HENMI TSUTOMU, SUTEFANUSU HARUYO, ITO TAKAYOSHI, MATSUI KUNIHIRO, NAKAJIMA HIDEO, AIZAWA KAZUYA, SUZUKI HIROSHI, MACHIYA SHUTARO, OGURO HIDETOSHI, TSUCHIYA YOSHINORI …

日本原子力研究開発機構JAEA-Review(Web), (2011-014) 1.4.5 (WEB ONLY), Jun, 2011
Investigation of Stress/Strain and Related Properties in Superconducting Wires and Conductors by Means of Neutron Diffraction at J-PARC

K. Osamura, S. Harjo, T. ITOH, K. Aizawa, S. Awaji, G. Nishijima, K. Takahashi, H. Oguro, T. Hemmi, K. Matsui …

Journal of the Cryogenic Society of Japan, 45(4) 135-147, Apr, 2010
中性子回折を用いたITER TF導体の内部歪測定

辺見努, HARJO Stefanus, 松井邦浩, 小泉徳潔, 布谷嘉彦, 高橋良和, 中嶋秀夫, 伊藤崇芳, 相澤一也, 鈴木裕士 …

低温工学・超電導学会講演概要集, 82nd, 2010
中性子回折によるRHQ-Nb₃Al超伝導素線の残留歪み測定

JIN Xinzhe, XU Qingjin, 中本建志, 荻津透, 土屋清澄, 山本明, 菊池章弘, 竹内孝夫, HARJO Stefanus, 伊藤崇芳 …

低温工学・超電導学会講演概要集, 83rd, 2010
Fission neutron irradiation effect on interlaminar shear strength of cyanate ester resin GFRP at RT and 77 K

A. Nishimura, Y. Izumi, S. Nishijima, T. Hemmi, K. Koizumi, T. Takeuchi, T. Shikama

AIP Conference Proceedings, 1219 127-134, 2010
Status of Procurement for ITER Superconductors

TAKAHASHI Yoshikazu, ISONO Takaaki, HAMADA Kazuya, NUNOYA Yoshihiko, NABARA Yoshihiro, MATSUI Kunihiro, HEMMI Tsutomu, KOIZUMI Norikiyo, KAWANO Katsumi, OSHIKIRI Masayuki …

81 49-49, Nov 18, 2009
Neutron Irradiation Effect of Electric Insulation Material on Interlaminar Shear Strength

NISHIMURA Arata, TAKEUCHI Takao, IZUMI Yoshinobu, NISHIJIMA Shigehiro, WATANABE Kazuo, SHIKAMA Tatsuo, HEMMI Tsutomu, KOIZUMI Norikiyo

81 48-48, Nov 18, 2009
Technology of Superconducting coils for International Thermonuclear Experimental Reactor

OKUNO Kiyoshi, TAKAHASHI Yoshikazu, NAKAJIMA Hideo, HEMMI Tsutomu, MATSUI Kunihiro, SHIMAMOTO Susumu

2009(1) 31-35, Feb 19, 2009
工学材料回折装置「匠」および実用超伝導コンポジットへの応力・ひずみの影響

HARJO Stefanus, 相澤一也, 伊藤崇芳, 新井正敏, 辺見努, 松井邦浩, 鈴木裕士, 長村光造, 町屋修太郎, 土屋佳則 …

低温工学・超電導学会講演概要集, 80th, 2009

Professional Memberships

Oct, 2023 - Present

Cryogenics and Superconductivity Society of Japan
The Japan Society of Plasma Science and Nuclear Fusion Research

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