SAKAMOTO Keishi 坂本慶司

… Alternative Names

SAKAMOTO Keiji 坂本慶司

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Researcher Number	90343904
External Links
Affiliation (based on the past Project Information) *help	2016 – 2019: 国立研究開発法人量子科学技術研究開発機構, 六ヶ所核融合研究所核融合炉材料研究開発部, 部長(定常) 2015: 国立研究開発法人日本原子力研究開発機構, 核融合研究開発部門六ヶ所核融合研究所, 次長 2015: 国立研究開発法人日本原子力研究開発機構, 核融合研究開発部門六ヶ所核融合研究所, 部長 2015: 国立研究開発法人日本原子力研究開発機構, 核融合研究開発部門那珂核融合研究所, 研究主席 2015: 国立研究開発法人放射線医学総合研究所, 六ヶ所核融合研究所核融合炉材料研究開発部, 部長 … More 2015: 国立研究開発法人日本原子力研究開発機構, 核融合研究開発部門・六ヶ所核融合研究所, 部長 2014: 独立行政法人日本原子力研究開発機構, 核融合研究開発部門那珂核融合研究所, グループリーダー 2014: 独立行政法人日本原子力研究開発機構, 核融合研究開発部門那珂核融合研究所, 研究員 2014: 独立行政法人日本原子力研究開発機構, 核融合研究開発部門, 研究主席 2014: 独立行政法人日本原子力研究開発機構, 研究員 2013: 独立行政法人日本原子力研究開発機構, 核融合研究開発部門, 研究員 2013: 独立行政法人日本原子力研究開発機構, 核融合研究開発部門・那珂核融合研究所, グループリーダー 2012: 独立行政法人日本原子力研究開発機構, 核融合研究開発部門, グループリーダー 2008: 日本原子力研究開発機構, 核融合研究開発部門 2007 – 2008: Japan Atomic Energy Agency, Fusion Research and Development Directorate, 研究主席 2006: 独立行政法人日本原子力研究開発機構, 核融合研究開発部門, 研究主幹 2005: 日本原子力研究所, 核融合工学部, 室長(研究職) 2005: Japan Atomic Energy Agency, Fusion Research and Development Directorate, Group Leader, 核融合研究開発部門, 主任研究員 2004: 日本原子力研究所, 核融合工学部, 主任研究員 Less
Review Section/Research Field	Principal Investigator Nuclear fusion studies / Energy engineering Except Principal Investigator Nuclear fusion studies / Aerospace engineering / Applied optics/Quantum optical engineering / Plasma science
Keywords	Principal Investigator ジャイロトロン / 単一モード発振 / モード競合 / 500kW / 発振ダイナミクス / テラヘルツ / TE32,18モード / 300GHz / テラヘルツジャイロトロン / プラズマ加熱電流駆動 … More / 電子サイクロトロン / 核融合 / 大電力 / テラヘルツ波 / ミリ波帶マイクロ波 / 電力変換 / 電子ビーム加速 / ミリ波帯マイクロ波 / 自動サイクロトロン共鳴 / プラズマ・核融合 … More Except Principal Investigator ジャイロトロン / プラズマ / ミリ波 / プラズマ・核融合 / ECH / 核融合 / 電子サイクロトロン加熱 / 放電 / ワイヤレス給電 / エネルギー / デトネーション / マイクロ波 / レーザー / エネルギー全般 / 航空宇宙工学 / 加熱電流駆動 / マルチメガワット / 電子銃 / ミラー / プラズマ加熱・電流駆動 / 大電力マイクロ波管 / 電子ビーム分散 / 原型炉 / エネルギー回収 / 円筒共振器 / 加熱・電流駆動 / マイクロ波電子管 / 電子ビーム速度分散 / 電子ビーム / モード変換器 / 円筒型共振器 / プラズマ加熱 / ミリ波帯マイクロ波 / 核融合原型炉 / Gvrotron / millimeter wave / Terahertz / Electron device / Plasma, Fusion / テラヘルツ / 電子デバイス / stabilization / plasma confinement / high power ECH / x-ray / potential / nulcear fusion / plasma / tandem mirror / ガンマ10 / 高電位生成 / コーエン理論 / パスツコフ理論 / 電位生成・電位効果統合理論 / プラズマ閉じ込め機構 / 原子力エネルギー / 安定化 / プラズマ閉じ込め / 大電力ECH / X線 / 電位 / タンデムミラー / マルチ周波数 / ｴﾈﾙｷﾞｰ / 放電・雷過程 / 電離過程 / 原子・分子過程 / プラズマ着火 / 相乗的複雑性 / プラズマ物理 Less

Discharge induced in a high-energy electromagnetic beam and its engineering applications
- Principal Investigator
  
  KOMURASAKI KIMIYA
- Project Period (FY)
  2015 – 2019
- Research Category
  
  Grant-in-Aid for Scientific Research (S)
- Research Field
  
  Aerospace engineering
- Research Institution
  The University of Tokyo
Development of Multi-MW gyrotron for Demo-Reactor ECH
- Principal Investigator
  
  IMAI TSUYOSHI
- Project Period (FY)
  2014 – 2018
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Nuclear fusion studies
- Research Institution
  University of Tsukuba
Study of high power terahertz gyrotorn and its oscillatio dynamicsPrincipal Investigator
- Principal Investigator
  
  Sakamoto Keishi
- Project Period (FY)
  2013 – 2016
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Nuclear fusion studies
- Research Institution
  National Institutes for Quantum and Radiological Science and Technology
  Japan Atomic Energy Agency
Mode convertor and built-in mirror for multi frequency high power and long pulse gyrotron
- Principal Investigator
  
  Kajiwara Ken
- Project Period (FY)
  2012 – 2015
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Nuclear fusion studies
- Research Institution
  Japan Atomic Energy Agency
Research on millimeter-wave discharge phenomena for wireless power transfer at a high energy density
- Principal Investigator
  
  KOMURASAKI KIMIYA
- Project Period (FY)
  2011 – 2014
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Aerospace engineering
- Research Institution
  The University of Tokyo
Research on synergetic complexity and application of plasmas dominatedby atomic/molecular and radiation process
- Principal Investigator
  
  KISHIMOTO Yasuaki
- Project Period (FY)
  2006 – 2008
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Plasma science
- Research Institution
  Kyoto University
Electron beam acceleration by auto-resonance cyclotron maser and application to power conversion systemPrincipal Investigator
- Principal Investigator
  
  SAKAMOTO Keishi
- Project Period (FY)
  2006 – 2008
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Energy engineering
- Research Institution
  Japan Atomic Energy Agency
Studies of high power oscillation source with frequency tunability in the millimeter and sub-millimeter waves
- Principal Investigator
  
  ATSUSHI Kasugai
- Project Period (FY)
  2006 – 2007
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Applied optics/Quantum optical engineering
- Research Institution
  Japan Atomic Energy Agency
Generalized Physics Mechanisms of Plasma Confinement with Radially Sheared Electric Field Formation by High Power ECH and Verification of Newly Developed Plasma Stabilization Method
- Principal Investigator
  
  CHO Teruji
- Project Period (FY)
  2004 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Nuclear fusion studies
- Research Institution
  University of Tsukuba

[Book] Electron Cyclotron Emission and Electron Cyclotron Resonance Heating(Calculation of the RF propagation for the ITER equatorial ECH/ECCD launcher)2009
- Author(s)
  K.Kajiwara, (K.Sakamoto), et al
- Total Pages
  562
- Publisher
  World Scientific Publishing Co.Pte.Ltd
- Data Source
  KAKENHI-PROJECT-18560815
[Book] E lectron Cyclotron Emission and Electron Cyclotron Resonance Heating (Calculation of the RF propagation for the ITER equatorial ECH/ECCD launcher)2009
- Author(s)
  K. Kajiwara, (K. Sakamoto), et al.
- Publisher
  World Scientific Publishing Co. Pte. Ltd
- Data Source
  KAKENHI-PROJECT-18560815
[Book] STRONG MICROWAVES : SOURCE AND APPLICATIONS(High power 170GHz gyrotron development in JAEA)2009
- Author(s)
  K.Sakamoto, et al
- Total Pages
  654
- Publisher
  Russian Academy of Science
- Data Source
  KAKENHI-PROJECT-18560815
[Book] STRONG MICROWAV ES: SOURCE AND APPLICATIONS (High power 170GHz gyrotron development in JAEA)
- Author(s)
  K. Sakamoto, et al.
- Publisher
  Russian Academy of Science
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] Electron heating of over-dense plasma with dual-frequency electron cyclotron waves in fully non-inductive plasma ramp-up on the QUEST spherical tokamak2020
- Author(s)
  H. Idei, T. Onchi, K. Mishra, H. Zushi, T. Kariya, T. Imai, O. Watanabe, R. Ikezoe, K. Hanada, M. Ono, A. Ejiri, J. Qian, K. Nakamura, A. Fujisawa, Y. Nagashima, M. Hasegawa, K. Matsuoka, A. Fukuyama, S. Kubo, M. Yoshikawa, M. Sakamoto, S. Kawasaki, A. Higashijima, S. Ide, Y. Takase and S. Murakami
- Journal Title
  
  Nuclear Fusion
  
  Volume: 60 Issue: 1 Pages: 0160301-13
- DOI
  10.1088/1741-4326/ab4c12
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H03514, KAKENHI-PROJECT-26249141
[Journal Article] Development of high power gyrotrons for advanced fusion devices2019
- Author(s)
  T. Kariya, R. Minami, T. Imai, M. Okada, F. Motoyoshi, T. Numakura, Y. Nakashima, H. Idei, T. Onchi, K. Hanada, T. Shimozuma, Y. Yoshimura, H. Takahashi, S. Kubo, Y. Oda, R. Ikeda, K. Sakamoto, M. Ono, K. Nagasaki, T. Eguchi, Y. Mitsunaka
- Journal Title
  
  Nuclear Fusion
  
  Volume: 59 Issue: 6 Pages: 066009-066009
- DOI
  10.1088/1741-4326/ab0e2c
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K03799, KAKENHI-PROJECT-17H03514, KAKENHI-PROJECT-26249141
[Journal Article] Thrust Generation Experiments on Microwave Rocket with a Beam Concentrator for Long Distance Wireless Power Feeding2018
- Author(s)
  Masafumi Fukunari, Toshikazu Yamaguchi, Yusuke Nakamura, Kimiya Komurasaki, Yasuhisa Oda, Ken Kajiwara, Koji Takahashi, Keishi Sakamoto
- Journal Title
  
  Acta Astronautica
  
  Volume: 145 Pages: 263-267
- DOI
  10.1016/j.actaastro.2018.01.057
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-15H05770, KAKENHI-PROJECT-17J09280
[Journal Article] 核融合炉へ向けた大電力ジャイロトロンの開発2017
- Author(s)
  假家強，今井剛，南龍太郎，津村康平，江橋優斗，岡田麻希，中嶋洋輔，出射浩，花田和明，下妻隆，久保伸，小田靖久，池田亮介，坂本慶司，小野雅之
- Journal Title
  
  プラズマ・核融合学会誌
  
  Volume: 93 Pages: 146-149
- Data Source
  KAKENHI-PROJECT-26249141
[Journal Article] Rocket Propulsion Powered Using a Gyrotron2017
- Author(s)
  Masafumi Fukunari、Kimiya Komurasaki、Yusuke Nakamura、Yasuhisa Oda、Keishi Sakamoto
- Journal Title
  
  Journal of Energy and Power Engineering
  
  Volume: 11 Issue: 6 Pages: 363-371
- DOI
  10.17265/1934-8975/2017.06.001
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15H05770
[Journal Article] Development of over-MW gyrotrons for fusion at 14 GHz to sub-THz frequencies2017
- Author(s)
  T. Kariya, T. Imai, R. Minami, K. Sakamoto, Y. Oda, R. Ikeda, T. Shimozuma, S. Kubo, H. Idei, T. Numakura, K. Tsumura, Y. Ebashi, M. Okada, Y. Nakashima, Y. Yoshimura, H. Takahashi, S. Ito, K. Hanada, K. Nagasaki, M. Ono, T. Eguchi, Y. Mitsunaka
- Journal Title
  
  Nuclear Fusion
  
  Volume: 57 Issue: 6 Pages: 066001-066001
- DOI
  10.1088/1741-4326/aa6875
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K06940, KAKENHI-PROJECT-25249135, KAKENHI-PROJECT-15H05770, KAKENHI-PROJECT-26249141
[Journal Article] Air-Breathing System Using Reed Valve for Pulse Detonation Microwave Rocket2016
- Author(s)
  FUKUNARI Masafumi、YAMAGUCHI Toshikazu、KOMURASAKI Kimiya、ODA Yasuhisa、IKEDA Ryosuke、KAJIWARA Ken、TAKAHASHI Koji、SAKAMOTO Keishi
- Journal Title
  
  AEROSPACE TECHNOLOGY JAPAN
  
  Volume: 14 Issue: 0 Pages: 1-7
- DOI
  10.2322/tastj.14.1
- NAID
  130005133013
- ISSN
  1884-0485
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-15H05770
[Journal Article] Air-Breathing System Using Reed Valve for Pulse Detonation Microwave Rocket2016
- Author(s)
  Masafumi Fukunari, Toshikazu Yamaguchi, Kimiya Komurasaki Yasuhisa Oda, Ryosuke Ikeda, Ken Kajiwara, Koji Takahashi, Keishi Sakamoto
- Journal Title
  
  Transactions of JSASS, Aerospace Technology Japan
  
  Volume: 14 Pages: 1-7
- NAID
  130005133013
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-15H05770
[Journal Article] Development of gyrotrons for fusion with power exceeding 1 MW over at wide frequency range2015
- Author(s)
  T. Kariya, T. Imai, R. Minami, T. Numakura, T. Eguchi, T. Kato, Y. Endo, M. Ichimura, T. Shimozuma, S. Kubo, H. Takahashi, Y. Yoshimura, H. Igami, S. Ito, T. Mutoh, K. Sakamoto, H. Idei, H. Zushi, K. Nagasaki, F. Sano, M. Ono, Y. Mitsunaka
- Journal Title
  
  Nuclear Fusion
  
  Volume: 55 Issue: 9 Pages: 093009-093009
- DOI
  10.1088/0029-5515/55/9/093009
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26249141, KAKENHI-PROJECT-24226020
[Journal Article] Development of gyrotrons for fusion with power exceeding 1 MW over at wide frequency range2015
- Author(s)
  T. Kariya, T. Imai, R. Minami, T. Numakura, T. Eguchi, T. Kato, Y. Endo, M. Ichimura, T. Shimozuma, S. Kubo, H. Takahashi, Y. Yoshimura, H. Igami, S. Ito, T. Mutoh, K. Sakamoto, H. Idei, H. Zushi, K. Nagasaki, F. Sano, M. Ono, Y. Mitsunaka
- Journal Title
  
  Nucl. Fusion
  
  Volume: 55 Pages: 093009-093009
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-25249135
[Journal Article] High-power and long-pulse operation of TE31,11 mode gyrotron2015
- Author(s)
  R. Ikeda, K.Kajiwara, Y.Oda, K.Takahashi, K.Sakamoto
- Journal Title
  
  Fusion Engineering and Design
  
  Volume: 96-97 Pages: 482-487
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24561034
[Journal Article] High efficiency coupling of radio frequency beams from the dual frequency gyrotron with a corrugated waveguide transmission system2013
- Author(s)
  小田靖久、梶原健、高橋幸司、満仲義加、坂本慶司
- Journal Title
  
  Review of Scientific Instruments
  
  Volume: 84 Issue: 1
- DOI
  10.1063/1.4772572
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24561034
[Journal Article] A One-Dimensional Propagation of Shock Wave Supported by Atmospheric Millimeter-Wave Plasma2011
- Author(s)
  Oda Y, Komurasaki K, Sakamoto K, et al.
- Journal Title
  
  J Infrared Milli Terahz Waves
  
  Volume: 32(6) Pages: 877-882
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23246145
[Journal Article] Design of a h igh power millimeter wave launcher for EC H&CD system in ITER2009
- Author(s)
  K. Kajiwara, K. Takahashi, N. Kobayashi, A. Kajiwara, K. Sakamoto
- Journal Title
  
  Fusion Enginee ring and Design 84
  
  Pages: 72-77
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] Thrust performance of Microwave Rocket under r epetitive pulse operation2009
- Author(s)
  Y. Oda, T. Shibata, K. Komurasaki, K. Ta kahashi, A. Kasugai, K. Sakamoto
- Journal Title
  
  Journal of Propulsion and Power 25
  
  Pages: 118-122
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] Long pulse and high power repetitive operation of the 170GHz ITER Gyrotron2009
- Author(s)
  K. Kajiwara, K. Sakamoto
- Journal Title
  
  Plasma and F usion Research 4
  
  Pages: 6-8
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] Long pulse and high power repetitive operation of the 170GHz ITER Gyrotron2009
- Author(s)
  K.Kajiwara, (K.Sakamoto), et al.
- Journal Title
  
  Plasma and Fusion Research 4
  
  Pages: 6-8
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] Progress of the high power 170GHz gyrotron in JAEA2009
- Author(s)
  K.Sakamoto, A.Kasugai, et al.
- Journal Title
  
  Nuclear Fusion 49
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] Design and testing of ITER ECH&CD transmission line components2009
- Author(s)
  R.W.Callis, (K.Sakamoto), et al.
- Journal Title
  
  Fusion Engineering and Design 84
  
  Pages: 526-529
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] In Tu be Shock Wave Driven by Atmospheric Mil limeter-Wave Plasma2009
- Author(s)
  Y. Oda, K. Kajiwara, K. Takahashi, A. Ka sugai, K. Sakamoto, K. Komurasaki
- Journal Title
  
  Japanese Journal of Applied Physics
  
  Pages: 118-123
- NAID
  40016844226
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] In tube shock wave driven by atmospheric millimeter wave plasma2009
- Author(s)
  Y.Oda, (K.Sakamoto), et al.
- Journal Title
  
  Japanese Journal Applied Physics 48
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] Development of 28GHz and 77GHz Gyrotron for ECRH of magnetically confined plasma2009
- Author(s)
  T.Kariya, (K.Sakamoto), et.al.
- Journal Title
  
  Fusion Science and Technology 55
  
  Pages: 91-94
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] Desig n and testing of ITER ECH&CD transmissi on line components2009
- Author(s)
  R.W. Callis, J. Doane, H. Grunloh, K. Ka jiwara, A. Kasugai, C. Moeller, Y. Oda, R. Olstad, K. Sakamoto, K. Takahashi
- Journal Title
  
  84
  
  Pages: 526-529
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] Progress of the high power 170GHz gyrotron in JAEA2009
- Author(s)
  K. Sakamoto, A. Kasugai, K. Kajiwara, K. Takahashi, Y. Oda, K. Hayashi, N. Kobayashi
- Journal Title
  
  Nuclear Fusion 49
  
  Pages: 95019-95019
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] Design of a high power millimeter wave launcher for EC H&CD system in ITER2009
- Author(s)
  K.Kajiwara, (K.Sakamoto), et al.
- Journal Title
  
  Fusion Engineering and Design 84
  
  Pages: 72-77
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] Steady-State Operation of 170GHz_1 MW Gyrotron for ITER2008
- Author(s)
  A. Kasugai, K. Sakamoto, K. Takahashi, K. Kajiwara, N. Kobayashi
- Journal Title
  
  Nuclear Fusion 5, Vol.48
  
  Pages: 54009-54009
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Journal Article] Improvement de sign of an ITER equatorial launcher2008
- Author(s)
  K. Takahashi, K. Kajiwara, N. Kobayashi, A. Kasugai, K. Sakamoto
- Journal Title
  
  48
  
  Pages: 54009-54009
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] Steady-state operation of 170GHz-1MW gyrotron for ITER2008
- Author(s)
  A.Kasugai, K.Sakamoto, et.al.
- Journal Title
  
  Fusion Engineering and Design 48
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] Steady-state operation of 170GHz 1MW gyrotron for IT ER2008
- Author(s)
  A. Kasugai, K. Sakamoto, K. Takahashi, K. Kajiwara, N. Kobayashi
- Journal Title
  
  Nuclear Fusion 48
  
  Pages: 54009-54009
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] Development of 7T cryogen-free superconducting magnet for gyrotron2008
- Author(s)
  R.Hirose, (K.Sakamoto), et al.
- Journal Title
  
  IEEE Transactions on Applied superconductivity 18
  
  Pages: 920-923
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] Improved design of an ITER equatorial EC launcher2008
- Author(s)
  K.Takahashi, (K.Sakamoto), et.al.
- Journal Title
  
  Nuclear Fusion 48
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] Achievement of robust high-efficiency 1MW oscillation in the hard-self-excitation region by a 170GHz continuous-wave gyrotron2007
- Author(s)
  K. Sakamoto, A, Kasugai, K. Takahashi, R. Minami, N. Kobayashi, K. Kajiwara
- Journal Title
  
  Nature Physics Vol.3
  
  Pages: 411-411
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Journal Article] Ach ievement of robust high-efficiency 1MW oscillation in the hard-excitation regi on by a 170GHz continuous wave gyrotron2007
- Author(s)
  K. Sakamoto, A. Kasugai, K. Takahashi, R. Minami, N. Kobayashi, K. Kajiwara
- Journal Title
  
  Nature Physics 3
  
  Pages: 411-414
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] Achievement of robust high-efficiency 1MW oscillation in the hard-self-excitation region by a 170 GHz continuous-wave gyrotron2007
- Author(s)
  K. Sakamoto, et. al.
- Journal Title
  
  Nature Physics 3
  
  Pages: 411-414
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560042
[Journal Article] Steady State Operation of High Power Gyrotron for ITER2007
- Author(s)
  A. Kazugai, K. Kajiwara, K. Takahashi, N. Kobayashi, T. Kariya, Y. Mitsunaka, K. Sakamoto
- Journal Title
  
  Proceedings of 8th IEEE Vacuum Electronics Conference, Kitakyushu, Japan
  
  Pages: 37-37
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Journal Article] Achievement of robust high-efficiency 1 MW oscillation in the hard-self-excitation region by a 170 GHz continuous-wave gyrotron2007
- Author(s)
  K.Sakamoto et al.
- Journal Title
  
  Nature Physics Vol.3, No.6 (In press)
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] Demonstration of Steady State Operation with 1MW of 170GHz gyrotron for ITER2007
- Author(s)
  A. Kasugai, K. Takahashi, K. Kajiwara, N. Kobayashi, K. Sakamoto
- Journal Title
  
  17th Topical Conference of Radio Frequency Power in Plasma Clearewater, Florida, USA
  
  Pages: 405-412
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Journal Article] Demonstration of High Efficiency 1MW Oscillation by 170GHz CW Gyrotron2007
- Author(s)
  K. Sakamoto, A. Kasugi, K. Kajiwara, K. Takahashi, N. Kobayashi
- Journal Title
  
  Proceedings of the joint 32nd International Conference on Infrared and Millimeter Waves and 15th International Conference on Terabertz Electronics, Sept., Gardiff, UK.
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Journal Article] Demonstration of High Efficiency 1MW Oscillation by 170GHz CW Gyrotron2007
- Author(s)
  K. Sakamoto, et. al.
- Journal Title
  
  Proceedings of the joint 32nd International Conference on Infrared and Millimeter Waves and 15th International Conference on Telaherz Electronics
  
  Pages: 708-709
- Data Source
  KAKENHI-PROJECT-18560042
[Journal Article] Achievement of robust high-efficiency 1 MW oscillation in the hard-self-excitation region by 170 GHz continuous-wave gyrotron2007
- Author(s)
  K. Sakamoto, et. al.
- Journal Title
  
  Nature Physics Vol.3
  
  Pages: 411-414
- Description
  「研究成果報告書概要(和文)」より
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560042
[Journal Article] A thrust generation model of microwa ve rocket2007
- Author(s)
  Y. Oda, T. Shibata, K. Komurasaki, K. Ta kahashi, A. Kasugai, K. Sakamoto, et al.
- Journal Title
  
  J. Space technology and Science 20
  
  Pages: 30-35
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] High power Hi gh efficiency operation of 170GHz gyrotron2007
- Author(s)
  A. Kasugai, A. Kajiwara, K. Takahashi, N. Kobayashi, K. Sakamoto
- Journal Title
  
  Fusion Science and technology 51
  
  Pages: 213-216
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] Present Status of Gyrotron Development for ITER, Prospect of Advanced Gyrotron for Fusion Reactor2007
- Author(s)
  A. Kasugai, K. Takahashi, K. kajiwara, N. Kobayashi, K. Sakamoto
- Journal Title
  
  IEEJ Technical Report
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Journal Article] High power and bigh efficiency operation of 170GHz gyrotron2007
- Author(s)
  A. Kasugai, R. Minami, K. Takahashi, N. Kobayashi, T. Kariya, Y. Mitsunaka, K. Sakamoto
- Journal Title
  
  IEEE Transaction of Fusion Science and Technology 51, 2T
  
  Pages: 213-213
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Journal Article] Development of High Power and Long Pulse 170GHz Gyrotron2006
- Author(s)
  K. Sakamoto, et. al.
- Journal Title
  
  Proceedings of the 14th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron, Resonance Heating
  
  Pages: 3517-425
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Journal Article] Development of the 170GHz gyrotron and equatorial launcher for ITER2006
- Author(s)
  K.Sakamoto et al.
- Journal Title
  
  Proceedings of the 21st IAEA Conference (Fusion Energy 2006) IAEA-CN-149
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] operation with high power, long pulse and high efficiency of 170GHz gyrotron for ITER2006
- Author(s)
  A. Kasugai, K. Takahashi, N. Kobayashi, T. Karuya, Y. Mitsunaka, K. Sakamoto
- Journal Title
  
  IEICE Technical Report 200, Vol.106
  
  Pages: 77-77
- NAID
  10018233467
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Journal Article] Development of High Power and Long Pulse 170GHz Gyrotron2006
- Author(s)
  K.Sakamoto et al.
- Journal Title
  
  Proceedings of the 14th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating
  
  Pages: 517-525
- Data Source
  KAKENHI-PROJECT-18560815
[Journal Article] Development of the 170GHz gyrotron and equatorial launcher for ITER2006
- Author(s)
  K.Sakamoto et al.
- Journal Title
  
  Proceedings of the 21st IAEA Conference (Fusion Energy 2006) IAEA-CN-149
- Data Source
  KAKENHI-PROJECT-18560042
[Journal Article] Development of 170GHz Gyrotron for ITER2006
- Author(s)
  A. Kasugai, K. Takahashi, N. Kobayashi, K. Sakamoto
- Journal Title
  
  Conference Digest of Joint Workshop of 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics, September 18-22, Shanghai, China.
  
  Pages: 202-202
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Journal Article] Development of the 170GHz gyrotron and equatorial launcher for ITER2006
- Author(s)
  K. Sakamoto, et. al.
- Journal Title
  
  Proceedings of 21st IAEA Conference(Fusion Energy 2006), IAEA-CN-149
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Journal Article] Development of the 170GHz Gyrotron and Equatorial Launcher for ITER2006
- Author(s)
  K. Sakamoto, A. Kasugai, K. Takahashi, R. Minami, T. Kariya, Y. Mitsunaka, N. Kobayashi
- Journal Title
  
  Proceedings of 21st IAEA Fusion Energy Conference Chengdu, China.
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Journal Article] Development of High Power and Long Pulse 170GHz Gyrotron2006
- Author(s)
  K.Sakamoto et al.
- Journal Title
  
  Proceedings of the 14th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating
  
  Pages: 517-525
- Data Source
  KAKENHI-PROJECT-18560042
[Journal Article] Achievement of robust high-efficiency 1 MW oscillation in the hard-self-excitation region by 170 GHz continuous-wave gyrotron
- Author(s)
  K.Sakamoto et al.
- Journal Title
  
  Nature Physics (In press)
- Data Source
  KAKENHI-PROJECT-18560042
[Presentation] Development of a 600 kW Gyrotron for Microwave Rocket Researches2019
- Author(s)
  Kuniyoshi Tabata, Masafumi Fukunari, Yasuhisa Oda, Tsuyoshi Kariya, Ryutaro Minami, Keishi Sakamoto, Tsuyoshi Imai, Kimiya Komurasaki
- Organizer
  IW-FIRT2019
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H05770
[Presentation] Visualization of 170 GHz Millimeter-Wave Discharge in Atmosphere2019
- Author(s)
  Toshikazu Yamaguchi,Ysuhisa Oda, Keishi Sakamoto, et al.
- Organizer
  The 6th Workshop on Discharge Induced in High-Energy Electromagnetic Beam
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H05770
[Presentation] ELM模擬実験に向けたメガワット級ジャイロトロンのECHシステムへの適用2019
- Author(s)
  南龍太郎, 假家強, 今井剛, 沼倉友晴, 北條俊孝, 本吉郁哉, 八房拓也, 北爪裕生, 木保孝則, 小島瑶平, 遠藤洋一, 坂本瑞樹
- Organizer
  第36回プラズマ・核融合学会年会
- Data Source
  KAKENHI-PROJECT-26249141
[Presentation] 28/35 GHz 2周波数ジャイロトロンの定常動作に向けた出力窓の性能評価2019
- Author(s)
  本吉郁哉、假家強、今井剛、南龍太郎、沼倉友晴、出射浩、恩地拓己、坂本瑞樹
- Organizer
  第36回プラズマ・核融合学会年会
- Data Source
  KAKENHI-PROJECT-26249141
[Presentation] Development Of A High-Power Gyrotron For Beamed Energy Propulsion Applications2018
- Author(s)
  Masafumi Fukunari, Yasuhisa Oda, Tsuyoshi Kariya, Ryutaro Minami, Yuusuke Yamaguchi, Yoshinori Tatematsu, Teruo Saito, Keishi Sakamoto, Tsuyoshi Imai, Kimiya Komurasaki
- Organizer
  43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H05770
[Presentation] Frequency dependence of atmospheric millimeter wave breakdown plasma2018
- Author(s)
  Yasuhisa Oda, Masayuki Takahashi, Kuniyoshi Tabata, Naofumi Ohnishi, Kimiya Komurasaki, Keishi Sakamoto
- Organizer
  43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15H05770
[Presentation] Development of High Power Gyrotrons for Advanced Fusion Devices and DEMO2018
- Author(s)
  T. KARIYA, R. MINAMI, T. IMAI, T. NUMAKURA, M. OKADA, Y. ENDO, Y. NAKASHIMA, H. IDEI, T. ONCHI, K. HANADA, T. SHIMOZUMA, Y. YOSHIMURA, H. TAKAHASHI, H. IGAMI, T. TSUJIMURA, S. ITO, S. KOBAYASHI, S. KUBO, K. SAKAMOTO, Y. ODA, R. IKEDA, K. KAJIWARA, K. TAKAHASHI, T. KOBAYASHI, S. MORIYAMA, M. ONO, K. NAGASAKI, etc.
- Organizer
  The 27th IAEA FUSION ENERGY CONFERENCE
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26249141
[Presentation] Status of collaborative Research of Gyrotron Development at University of Tsukuba2017
- Author(s)
  T. Kariya, R. Minami, T. Imai, T. Numakura, Y. Ebashi, T. Shimozuma, S. Kubo, K. Sakamoto, H. Idei, K. Hanada, T. Eguchi, Y. Mitsunaka, Y. Nakashima
- Organizer
  Plasma Conference 2017
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25249135
[Presentation] Study of High Power and High Frequency Gyrotron for FusionReactor2017
- Author(s)
  Keishi Sakamoto, Ryosuke Ikeda, Tsuyoshi Kariya, Yasuhisa Oda, Takayuki Kobayashi, Ken Kajiwara, Kazuo Hayashi, Ryutaro Minami, Koji Takahashi, Tsuyoshi Imai, Shinichi Moriyama
- Organizer
  42th Int.Conf.on Infrared, Millimeter and Terahertz Waves
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25249135
[Presentation] Status of Collaborative Research of Gyrotron Developments at University of Tsukuba2017
- Author(s)
  T. Kariya, R. Minami, T. Imai, T. Numakura, Y. Ebashi, T. Shimozuma, S. Kubo, K. Sakamoto, H. Idei, K. Hanada, T. Eguchi, Y. Mitsunaka, Y. Nakashima
- Organizer
  Plasma Conference 2017
- Data Source
  KAKENHI-PROJECT-26249141
[Presentation] Development of Over MW Gyrotrons for Fusion at Frequencies from 14 GHz to Sub-terahertz2016
- Author(s)
  T. Kariya, T. Imai, R. Minami, T. Numakura, K. Tsumura, Y. Ebashi, Y. Endo, R. Ikezoe, Y. Nakashima, K. Sakamoto, Y. Oda, R. Ikeda, K. Takahashi, T. Kobayashi, S. Moriyama, T. Shimozuma, S. Kubo, Y. Yoshimura, H. Takahashi, H. Igami, T. Mutoh, H. Idei, K. Hanada, K. Nagasaki, M. Ono, T. Eguchi, Y. Mitunaka, et.,al.
- Organizer
  IAEA-FEC2016
- Place of Presentation
  Kyoto International Conference Center,Kyoto, Japan
- Year and Date
  2016-10-17
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26249141
[Presentation] Status of high power gyrotron development in JAEA2015
- Author(s)
  K.Sakamoto, R. Ikeda, Y.Oda, T.Kobayashi, K.Kajiwara, H.Shidara, K.Takahashi, S. Moriyama
- Organizer
  16th International Vacuum Electronics Conference (IVEC 2015)
- Place of Presentation
  Beijing (China)
- Year and Date
  2015-04-27
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-24561034
[Presentation] Development of high power gyrotrons and Mm-wave launcher For ITER2015
- Author(s)
  K. Takahashi , Y. Oda, T. Kobayashi, R. Ikeda, G. Abe, M. Isozaki, H. Shidara, S. Moriyama, K. Kajiwara, K. Sakamoto
- Organizer
  40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)
- Place of Presentation
  Hong Kong (China)
- Year and Date
  2015-08-23
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-24561034
[Presentation] Development of Over 1 MW and Multi-Frequency Gyrotrons for Present ST and Fusion Experiments in University of Tsukuba2015
- Author(s)
  R. Minami, T. Kariya, T. Imai, T. Numakura, Y. Endo, M. Ichimura, T. Shimozuma, S. Kubo, H. Takahashi, Y. Yoshimura, H. Igami, S. Ito, T. Mutoh, K. Sakamoto, Y. Oda, R. Ikeda, K. Takahashi, H. Idei, K. Nagasaki, M. Ono, T. Eguchi, Y. Mitsunaka
- Organizer
  18th International Spherical Torus Workshop
- Place of Presentation
  Princeton ( USA )
- Year and Date
  2015-11-03
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26249141
[Presentation] Study of Sub-Terahertz high power gyrotron for ECH&CD system of DEMO2015
- Author(s)
  Keishi Sakamoto, Tsuyoshi Kariya, Yasuhisa Oda, Ryutaro Minami, Ryosuke Ikeda, Ken Kajiwara, Takayuki Kobayashi, Koji Takahashi, Shinichi Moriyama, Tsuyoshi Imai
- Organizer
  2015 IEEE International Conference on Plasma Science
- Place of Presentation
  Turkey, Antalya
- Year and Date
  2015-05-27
- Data Source
  KAKENHI-PROJECT-25249135
[Presentation] Development of Over 1 MW Gyrotrons and ECH Systems in University of Tsukuba2015
- Author(s)
  R. Minami, T. Kariya, T. Imai, T. Numakura, Y. Endo, Y. Nakashima, T. Shimozuma, S. Kubo, H. Takahashi, Y. Yoshimura, H. Igami, S. Ito, T. Mutoh, K. Sakamoto, Y. Oda, R. Ikeda, K. Takahashi, H. Idei, K. Nagasaki, M. Ono, T. Eguchi and Y. Mitsunaka
- Organizer
  Japan-Korea Workshop on "Physics and Technology of Heating and Current Drive"
- Place of Presentation
  日立シビックセンター（茨城県、日立市）
- Year and Date
  2015-12-21
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26249141
[Presentation] Development of Over 1 MW and Multi-Frequency Gyrotrons in University of Tsukuba2015
- Author(s)
  R. Minami, T. Kariya, T. Imai, T. Numakura, Y. Endo, M. Ichimura, T. Shimozuma, S. Kubo, H. Takahashi, Y. Yoshimura, H. Igami, S. Ito, T. Mutoh, K. Sakamoto, Y. Oda, R. Ikeda, K. Takahashi, H. Idei, H. Zushi, K. Nagasaki, F. Sano, M. Ono, T. Eguchi, Y. Mitsunaka
- Organizer
  Workshop on RF Heating Technology of Fusion Plasmas 2015
- Place of Presentation
  国際ファッションセンター（東京都、墨田区）
- Year and Date
  2015-08-31
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26249141
[Presentation] Progress of 300 GHz high order mode gyrotron development2015
- Author(s)
  (1)Yasuhisa Oda, Tsuyoshi Kariya, Ryutaro Minami, Ryosuke Ikeda, Ken Kajiwara, Koji Takahashi, Kazuo Hayashi, Tsuyoshi Imai, Keishi Sakamoto
- Organizer
  40th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2015) (Hong Kong, 23 - 28 August 2015) TS-68
- Place of Presentation
  香港
- Year and Date
  2015-08-23
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25249135
[Presentation] ＤＥＭＯ炉用３００ＧＨｚジャイロトロンの開発2015
- Author(s)
  (3)假家強, 小田靖久, 南龍太郎, 津村康平, 池田亮介, 梶原健, 高橋幸司, 林一生, 今井剛, 坂本慶司
- Organizer
  第32回プラズマ・核融合学会年会
- Place of Presentation
  名古屋大学東山キャンパス
- Year and Date
  2015-11-24
- Data Source
  KAKENHI-PROJECT-25249135
[Presentation] Preliminary result of 300GHz short pulse high order mode gyrotron2014
- Author(s)
  Keishi Sakamoto, Yasuhisa Oda, Tsuyoshi Kariya, Ryutaro Minami, Ryosuke Ikeda, Ken Kajiwara, Koji Takahashi, Kazuo Hayashi, Tsuyoshi Imai
- Organizer
  39th International Conference on Infrared, Millimeter wave, and Terahertz waves
- Place of Presentation
  Tuson, USA
- Year and Date
  2014-09-17
- Data Source
  KAKENHI-PROJECT-25249135
[Presentation] Study of Sub-Terahertz high power gyrotron for ECH&CD system of DEMO2014
- Author(s)
  Keishi Sakamoto, Tsuyoshi Kariya, Yasuhisa Oda, Ryutaro Minami, Ryosuke Ikeda, Ken Kajiwara, Takayuki Kobayashi, Koji Takahashi, Shinichi Moriyama, Tsuyoshi Imai
- Organizer
  Plasma Conference 2014
- Place of Presentation
  新潟
- Year and Date
  2014-11-21
- Data Source
  KAKENHI-PROJECT-25249135
[Presentation] Progress of High Power Long Pulse Gyrotron for Fusion Application2013
- Author(s)
  坂本慶司、梶原健、小田靖久、林一生、池田亮介
- Organizer
  38th International Conference on Infrared, Millimeter, and Terahertz
- Place of Presentation
  マインツ（ドイツ）
- Data Source
  KAKENHI-PROJECT-24561034
[Presentation] Thrust Performance and Plasma Generation of Microwave Rocket with Microwave Beam Space Transmission System2013
- Author(s)
  Masafumi Fukunari, Toshikazu Yamaguchi, Shohei Saitoh, Kenta Asai, Satoshi Kurita, Kimiya Komurasaki, Yasuhisa Oda, Ken Kajiwara, Koji Takahashi, Keishi Sakamoto
- Organizer
  IEEE Pulsed Power & Plasma Science Conference
- Place of Presentation
  San Francisco, California, USA
- Data Source
  KAKENHI-PROJECT-23246145
[Presentation] Progress of Development for 170GHz Gyrotron and 5kHz Modulation Power Supply for ITER2013
- Author(s)
  梶原健、小田靖久、池田亮介、高橋幸司、坂本慶司
- Organizer
  20th Topical Conference on Radio Frequency Power in Plasmas
- Place of Presentation
  ソレント（イタリア）
- Data Source
  KAKENHI-PROJECT-24561034
[Presentation] Status of high power gyrotron development in JAEA2013
- Author(s)
  坂本慶司、梶原健、小田靖久、林一生、高橋幸司
- Organizer
  IEEE 14th International Vacuum Electronics Conference (IVEC)
- Place of Presentation
  パリ（フランス）
- Data Source
  KAKENHI-PROJECT-24561034
[Presentation] Progress of high power long pulse gyrotron development in JAEA2012
- Author(s)
  坂本慶司、梶原健、小田靖久、林一生、高橋幸司
- Organizer
  39th European Physical Society Conference on Plasma Physics
- Place of Presentation
  ストックホルム（スウェーデン）
- Data Source
  KAKENHI-PROJECT-24561034
[Presentation] A Study of High Efficient Beam Coupling of High Power Gyrotron and Transmission Line2012
- Author(s)
  小田靖久、梶原健、高橋幸司、坂本慶司
- Organizer
  The 37th International Conference on Infrared, Milimeter and Terahertz Waves (IRMMW-THz)
- Place of Presentation
  ウロンゴン（オーストラリア）
- Data Source
  KAKENHI-PROJECT-24561034
[Presentation] Progress on the Development of High Power Long Pulse Gyrotron and Related Technologies2012
- Author(s)
  梶原健、坂本慶司、小田靖久、林一生、高橋幸司、春日井敦
- Organizer
  24th IAEA Fusion Energy Conference (FEC 2012)
- Place of Presentation
  サンディエゴ（アメリカ）
- Data Source
  KAKENHI-PROJECT-24561034
[Presentation] Interaction between Shock Wave and Plasma Region Ionized by Millimeter Wave Beam and Its Application to Pulse Detonation System as a Microwave Rocket2011
- Author(s)
  Yamaguchi T, Komatsu R, Komurasaki K, Oda Y, Kajiwara K, Takahashi K, Sakamoto K
- Organizer
  IEEE MTT-S International Microwave Workshop Series on Innovative Wireless Power Transmission
- Place of Presentation
  Uji Campus, Kyoto University, Kyoto
- Year and Date
  2011-05-13
- Data Source
  KAKENHI-PROJECT-23246145
[Presentation] Millimeter-wave Beam Conversion with Quasi-optical Mirrors for Microwave Rocket Launch Demonstration2011
- Author(s)
  Yamaguchi T, Komurasaki K, Oda Y, Kajiwawara K, Takahashi K, Sakamoto K
- Organizer
  7th International Symposium on Beamed Energy Propulsion
- Place of Presentation
  Ludwigsburg, Germany
- Year and Date
  2011-04-13
- Data Source
  KAKENHI-PROJECT-23246145
[Presentation] Millimeter-wave Driven Shock Wave for a Pulsed Detonation Microwave Rocke2011
- Author(s)
  Yamaguchi T, Komatsu R, Fukunari M, Komurasaki K, Oda Y, Kajiwawara K, Takahashi K, Sakamoto K
- Organizer
  7th International Symposium on Beamed Energy Propulsion
- Place of Presentation
  Ludwigsburg, Germany
- Year and Date
  2011-04-13
- Data Source
  KAKENHI-PROJECT-23246145
[Presentation] Development of Microwave Rocket as a Space Mass Transportation System2011
- Author(s)
  Komatsu R, Fukunari M, Yamaguchi T, Komurasaki K, Arakawa Y, Oda Y, Sakamoto K, Funaki I, Katsurayama H
- Organizer
  IEEE MTT-S International Microwave Workshop Series on Innovative Wireless Power Transmission
- Place of Presentation
  Uji Campus, Kyoto University, Kyoto
- Year and Date
  2011-05-13
- Data Source
  KAKENHI-PROJECT-23246145
[Presentation] Progress of the high power gyrotron development in JAEA(Invited)2009
- Author(s)
  K.Sakamoto, et al.
- Organizer
  IEEE The 34^<th> Int.Conf.on Infrared, Millimeter, and Terahertz waves
- Place of Presentation
  釜山(韓国)
- Year and Date
  2009-09-24
- Data Source
  KAKENHI-PROJECT-18560815
[Presentation] Gyrotron Beam Coupling Method into Corrugated Waveguide2009
- Author(s)
  Y. Oda, K. Kajiwara, K. Takahashi, A. Kasugai, K. Sakamoto
- Organizer
  The 18th Topical Conference on Radio Frequency Power in Plasmas
- Place of Presentation
  Ghent, Belgium
- Data Source
  KAKENHI-PROJECT-18560815
[Presentation] Progress of the high power gyrotron development in JAEA2009
- Author(s)
  K. Sakamoto, K. Kajiwara, A. Kasugai, Y. Oda, K. Takahashi, N. Kobayashi
- Organizer
  IEEE The 34th Int. Conf. on Infrared, Millimeter, and Terahertz waves
- Place of Presentation
  Busan, Korea(Invited)
- Data Source
  KAKENHI-PROJECT-18560815
[Presentation] Gyrotron beam coupling into corrugate waveguide2009
- Author(s)
  Y.Oda, (KSakamoto), et al.
- Organizer
  IEEE The 34^<th> Int.Conf.on Infrared, Millimeter, and Terahertz waves
- Place of Presentation
  釜山(韓国)
- Year and Date
  2009-09-24
- Data Source
  KAKENHI-PROJECT-18560815
[Presentation] Gyrotron beam coupling into corrugate waveguide2009
- Author(s)
  Y. Oda, K. Kajiwara, K. Takahashi, A. Kasugai, K. Sakamoto, et al.
- Organizer
  IEEE The 34th Int. Conf. on Infrared, Millimeter, and Terahertz waves
- Place of Presentation
  Busan, Korea
- Data Source
  KAKENHI-PROJECT-18560815
[Presentation] Progress of the high power gyrotron development in JAEA(Invited)2008
- Author(s)
  K.Sakamoto, et al.
- Organizer
  35^<th> IEEE International conference on plasma science
- Place of Presentation
  カールスルーエ(ドイツ)
- Year and Date
  2008-06-17
- Data Source
  KAKENHI-PROJECT-18560815
[Presentation] Development of quasi-optical transmission line for ITER equatorial EC launcher2008
- Author(s)
  K. Takahashi, K. Kajiwara, N. Kobayashi, A. Kasugai, Y. Oda, T. Kobayashi, S. Moriyama, K. Sakamoto
- Organizer
  25th Symposium on Fusion Technology
- Place of Presentation
  Lostock, Germany
- Data Source
  KAKENHI-PROJECT-18560815
[Presentation] Demonstration of 1MW wuasi-CW operation of 170GHz gyrotron and progress of EC technology2008
- Author(s)
  A. Kasugai, K. Sakamoto, K. Takahashi, K. Kajiwara, Y. Oda, N. Kobayashi
- Organizer
  22nd IAEA Fusion Energy Conference
- Place of Presentation
  Geneva, Switzerland
- Data Source
  KAKENHI-PROJECT-18560815
[Presentation] Development of 1MW quasi-CW operation of 170GHz gyrotron and progress of EC technology for ITER(Invited)2008
- Author(s)
  A.Kasugai, K.Sakamoto, et al.
- Organizer
  22^<nd> IAEA fusion energy conference
- Place of Presentation
  ジュネーブ(スイス)
- Year and Date
  2008-10-17
- Data Source
  KAKENHI-PROJECT-18560815
[Presentation] Development of quasi-optical transmission line for ITER equatorial EC launcher2008
- Author(s)
  K.Takahashi, (K.Sakamoto), et al.
- Organizer
  25^<th> symposium on fusion technology
- Place of Presentation
  ロストック(ドイツ)
- Year and Date
  2008-09-17
- Data Source
  KAKENHI-PROJECT-18560815
[Presentation] A structure of breakdown plasma by a high power millimeter wave beam2008
- Author(s)
  Y. Oda, K. Kajiwara, K. Takahashi, A. Kasugai, K. Sakamoto, K. Komurasaki
- Organizer
  International Congress on Plasma Physics Karlsrhue
- Place of Presentation
  Germany
- Data Source
  KAKENHI-PROJECT-18560815
[Presentation] A high-power gyrotron and high-power mm wave technology for Fusion Reactor2008
- Author(s)
  K. Sakamoto, K. Kajiwara, A. Kasugai, Y. Oda, K. Takahashi, T. Kobayashi, A. Isayama, S. Moriyama
- Organizer
  18th International Toki Conference
- Place of Presentation
  Toki, Japan
- Data Source
  KAKENHI-PROJECT-18560815
[Presentation] A high power gyrotron and high power mm wave technology for fusion reactor(Invited)2008
- Author(s)
  K.Sakamoto, et al.
- Organizer
  18^<th> International Toki Conference
- Place of Presentation
  土岐(岐阜)
- Year and Date
  2008-12-10
- Data Source
  KAKENHI-PROJECT-18560815
[Presentation] Study of the frequency behaviour of the ITER 170GHz gyrotron2008
- Author(s)
  K.Kajiwara, K.Sakamoto, et al.
- Organizer
  25^<th> symposium on fusion technology
- Place of Presentation
  ロストック(ドイツ)
- Year and Date
  2008-09-17
- Data Source
  KAKENHI-PROJECT-18560815
[Presentation] Progress in ITER heating and current drive system(Invited)2008
- Author(s)
  K.Sakamoto, et al.
- Organizer
  22^<nd> IAEA fusion energy conference
- Place of Presentation
  ジュネーブ(スイス)
- Year and Date
  2008-10-17
- Data Source
  KAKENHI-PROJECT-18560815
[Presentation] High power gyrotron development for fusion application2008
- Author(s)
  K. Sakamoto, K. Kajiwara, A. Kasugai, T. Kobayashi, Y. Oda, K. Takahashi, N. Kobayashi, S. Moriyama
- Organizer
  33rd International Conference on Infrared, Milimeter, and Terahrtz Waves
- Place of Presentation
  Pasadena, USA
- Data Source
  KAKENHI-PROJECT-18560815
[Presentation] Evelopment of 1MW-CW gyrotron for ITER2007
- Author(s)
  A. Kasugai, K. Sakamoto, K. Takahashi, K. Kajiwara, Y. Ikkeda, S. Komori, N. Kobatyashi, T. Kariya, R. Minami, Y. Mitsunaka
- Organizer
  24thJSPF Annual Meeting
- Place of Presentation
  Himeji
- Year and Date
  2007-11-28
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Presentation] Demonstration of Steady State Operaation with 1MW of 170GHz gyrotron for ITER2007
- Author(s)
  A. Kasugai, K. Takahashi, K. Kajiwara, N. Kobayashi, K. Sakamoto
- Organizer
  17th Topical Conference of Radio Frequency Power in Plasma
- Place of Presentation
  Clearewater, Frolida, USA
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Presentation] Demonstration of High Efficiency 1MW Oscillation by 170GHz CW Gyrotron2007
- Author(s)
  K. Sakamoto, et. al.
- Organizer
  32nd International Conference on Infrared and Millimeter Waves and 15th International Conference on Terahertz Electronics
- Place of Presentation
  英語、カーディフ
- Year and Date
  2007-09-06
- Data Source
  KAKENHI-PROJECT-18560042
[Presentation] Demonstration of high efficiency 1MW oscillation by 170GHz CW gyrotron2007
- Author(s)
  K. Sakamoto, et al.
- Organizer
  Proc. of the joint conference on infrared and mm waves and 15th Int. conf. on terahertz electronics
- Place of Presentation
  Cardiff, UK
- Data Source
  KAKENHI-PROJECT-18560815
[Presentation] Present Status of Gyrotron Development for ITER and Prospect of Advanced Gyrotron for Fusion Reactor2007
- Author(s)
  A. Kasugai, K. Takahashi, K. Kajiwara, N. Kobayashi, K. Sakamoto
- Organizer
  IEEJ
- Place of Presentation
  Toyama, Japan
- Year and Date
  2007-03-10
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Presentation] Steady State Operation of High Power Gyrotron for ITER2007
- Author(s)
  A. Kasugai, K. Kajiwara, K. Takahashi, N. Kobayashi, T. Kariya, Y. Mitsunaka, K. Sakamoto
- Organizer
  8th IEEE Vacuum Electronics Conference
- Place of Presentation
  Kitakyushi, Japan
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Presentation] Demonstration of High Efficiency 1MW Oscillation by 170GHz CW Gyrotron2007
- Author(s)
  K. Sakamoto, A Kasugai, K. Kajiwara, K. Takahashi, N. Kobayashi
- Organizer
  joint 32nd International Conference on Infrared and Millimeter waves and 15th International Conference on Terahertz Electronics
- Place of Presentation
  Cardiff, UK.
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Presentation] Demonstration of High Efficiency 1MW Oscillation by 170GHz CW Gyrotron2007
- Author(s)
  K. Sakamoto, et. al.
- Organizer
  32nd International Conference on Infrared and Millimeter Waves and 15th International Conference on Terahertz Electronics
- Place of Presentation
  英国、カーディフ
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Presentation] Demonstration of High Efficiency 1MW Oscillation by 170GHz CW Gyrotron2007
- Author(s)
  Keishi Sakamoto
- Organizer
  Joint 32nd Int.Conf.on Infrared and Millimeter Waves and 15th Int.Conf.on Terahertz Electronscs
- Place of Presentation
  英国、カーディフ
- Year and Date
  2007-09-05
- Data Source
  KAKENHI-PROJECT-18560815
[Presentation] Development of the 170GHz Gyrotron and Equatorial Launcher for ITER,2006
- Author(s)
  K. Sakamoto, et. al.
- Organizer
  21th IAEA Fusion Energy Conference,
- Place of Presentation
  中国、成都
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Presentation] Development of 170GHz Gyrotron for ITER2006
- Author(s)
  A. Kasugai, K. Takahashi, N. Kobayashi, K. Sakamoto
- Organizer
  Joint Worshop of 31st International Conference on Infrared and Milimeter Waves and 14th International Conference on Terahertz Electronics
- Place of Presentation
  Shanghai, China
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Presentation] Development of the 170GHz Gyrotron and Equatorial Launcher for ITER2006
- Author(s)
  K. Sakamoto, A. Kasugai, K. Takahashi, R. Minami, T. Kariya, Y. Mitsunaka, N. Kobayashi
- Organizer
  21th IAEA Fusion Energy Conference
- Place of Presentation
  Chengdu, China
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Presentation] Steady State Operation of 170GHz Gyrotron for ITER2006
- Author(s)
  A. Kasugai, K. Takahashi, N. Kobayashi, K. Sakamoto
- Organizer
  23th JSPF Annual Meeting
- Place of Presentation
  Tsukuba
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18560042
[Presentation] テーパリード弁を用いたマイクロ波ロケットの空気吸い込み機構の開発
- Author(s)
  福成雅史、山口敏和、中村友祐、柿沼薫、小紫公也、小泉宏之、小田靖久、池田亮介、梶原健、高橋幸司、坂本　慶司
- Organizer
  航空原動機宇宙推進講演会
- Place of Presentation
  富山国際会議場(富山県富山市)
- Year and Date
  2015-03-09 – 2015-03-10
- Data Source
  KAKENHI-PROJECT-23246145
[Presentation] Development of Over 1 MW and Multi-Frequency Gyrotrons for Fusion
- Author(s)
  T. Imai, T. Kariya, R. Minami, T. Numakura, T. Eguchi, T. Kato. Y. Endo, M. Ichimura, T. Shimozuma, S. Kubo1, H. Takahashi, Y. Yoshimura, H. Igami, S. Ito, T. Mutoh, K. Sakamoto, H. Idei, H. Zushi, K. Nagasaki, F. Sano, M. Ono, Y. Mitsunaka
- Organizer
  25th IAEA Fusion Energy Conference
- Place of Presentation
  St. Peterusburug, Russia
- Year and Date
  2014-10-13 – 2014-10-18
- Data Source
  KAKENHI-PROJECT-26249141
[Presentation] 大気圧ミリ波放電のフィラメント構造解析
- Author(s)
  中村友祐、山口敏和、福成雅史、小紫公也、小田　靖久、池田　亮介、高橋　幸司、坂本　慶司
- Organizer
  宇宙輸送シンポジウム
- Place of Presentation
  JAXA宇宙科学研究所(神奈川県相模原市)
- Year and Date
  2015-01-15 – 2015-01-16
- Data Source
  KAKENHI-PROJECT-23246145
[Presentation] Experiments of High - Power Multi - Frequency Gyrotron and Long Distance Transmission
- Author(s)
  池田亮介、梶原健、小田靖久、高橋幸司、坂本慶司
- Organizer
  28th Symposium on Fusion Technology
- Place of Presentation
  サン・セバスティアン(スペイン)
- Year and Date
  2014-09-29 – 2014-10-03
- Data Source
  KAKENHI-PROJECT-24561034
[Presentation] Development of 28 GHz /35 GHz Dual-Frequency Gyrotron
- Author(s)
  T. Kato, T. Kariya, T. Imai, R. Minami, T. Numakura, T. Eguchi, M. Uehara, K. Sakamoto, M. Ichimura
- Organizer
  The 10th International Conference on Open Magnetic Systems for Plasma Confinement
- Place of Presentation
  Daejeon,Korea
- Year and Date
  2014-08-26 – 2014-08-29
- Data Source
  KAKENHI-PROJECT-26249141
[Presentation] Status of Collaborative Gyrotron developments in University of Tsukuba
- Author(s)
  Tsuyoshi Kariya, Tsuyoshi Imai, Ryutaro Minami, Takaki Kato, Keishi Sakamoto, Hiroshi Idei, Hideki Zushi, Kazuaki Hanada, Masayuki Ono, Taku Eguchi, Yoshika Mitsunaka, Tomoharu Numakura, Makoto Ichimura
- Organizer
  Plasma 2014 (プラズマ・核融合学会第31回年会）
- Place of Presentation
  新潟市
- Year and Date
  2014-11-18 – 2014-11-21
- Data Source
  KAKENHI-PROJECT-26249141
[Presentation] Demonstration of Sub-Megawatt Power Transmission to Microwave Rocket
- Author(s)
  M. Fukunari, N. Wongsuryrat, T. Yamaguchi, K. Komurasaki, Y. Oda, R. Ikeda, K. Kajiwara, K. Takahashi, K. Sakamoto
- Organizer
  IRMMW-THz 2014
- Place of Presentation
  Tucson, AZ, US
- Year and Date
  2014-09-15 – 2014-09-17
- Data Source
  KAKENHI-PROJECT-23246145
[Presentation] Microwave Rocket with Quasi-Optical Microwave Power Transmission System and Flight Demonstration
- Author(s)
  M. Fukunari, T. Yamaguchi, K. Asai, S. Kurita, N. Wongsuryrat, K. Komurasaki, Y. Oda, R. Ikeda, K. Kajiwara, K. Takahashi, K. Sakamoto
- Organizer
  International High Power Laser Ablation and Beamed Energy Propulsion
- Place of Presentation
  Santa Fe, NM, US
- Year and Date
  2014-04-21 – 2014-04-23
- Data Source
  KAKENHI-PROJECT-23246145

1. ODA Yasuhisa (60512209)

# of Collaborated Projects: 4 results

# of Collaborated Products: 34 results
2. IMAI Tsuyoshi (80354637)

# of Collaborated Projects: 4 results

# of Collaborated Products: 23 results
3. TAKAHASHI Koji (70354644)

# of Collaborated Projects: 3 results

# of Collaborated Products: 35 results
4. MINAMI Ryutaro (70370476)

# of Collaborated Projects: 3 results

# of Collaborated Products: 22 results
5. 假家強 (30451678)

# of Collaborated Projects: 3 results

# of Collaborated Products: 23 results
6. KASUGAI Atsushi (70354636)

# of Collaborated Projects: 2 results

# of Collaborated Products: 35 results
7. UTSUMI Takayuki (50360433)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
8. KATO Susumu (20356786)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
9. FUKUDA Yuji (30311327)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
10. SASAKI Akira (10215709)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
11. KOMURASAKI KIMIYA (90242825)

# of Collaborated Projects: 2 results

# of Collaborated Products: 16 results
12. Kajiwara Ken (90450311)

# of Collaborated Projects: 2 results

# of Collaborated Products: 17 results
13. KISHIMOTO Yasuaki (10344441)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
14. MAEKAWA Takash (20127137)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
15. LI Jiquan (00437253)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
16. CHO Teruji (80171958)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
17. YASAKA Yasuyoshi (30109037)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
18. KOHAGURA Junko (60302345)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
19. HIRATA Mafumi (70222247)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
20. 児玉了祐 (80211902)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
21. 高部英明 (20150352)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
22. 河野康則 (90354589)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
23. 小林貴之 (10465974)

# of Collaborated Projects: 1 results

# of Collaborated Products: 3 results
24. 下妻隆 (80270487)

# of Collaborated Projects: 1 results

# of Collaborated Products: 11 results
25. 森山伸一 (90354654)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
26. 大西直文 (20333859)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
27. 白石裕之 (50273272)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
28. 葛山浩 (80435809)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
29. 森浩一 (90375121)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
30. 久保伸

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
31. 出射浩

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

SAKAMOTO Keishi 坂本 慶司

SAKAMOTO Keiji 坂本 慶司

Research Projects

Research Products

Co-Researchers

Discharge induced in a high-energy electromagnetic beam and its engineering applications

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Development of Multi-MW gyrotron for Demo-Reactor ECH

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Study of high power terahertz gyrotorn and its oscillatio dynamicsPrincipal Investigator

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Mode convertor and built-in mirror for multi frequency high power and long pulse gyrotron

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Research on millimeter-wave discharge phenomena for wireless power transfer at a high energy density

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Research on synergetic complexity and application of plasmas dominatedby atomic/molecular and radiation process

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Electron beam acceleration by auto-resonance cyclotron maser and application to power conversion systemPrincipal Investigator

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Studies of high power oscillation source with frequency tunability in the millimeter and sub-millimeter waves

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Generalized Physics Mechanisms of Plasma Confinement with Radially Sheared Electric Field Formation by High Power ECH and Verification of Newly Developed Plasma Stabilization Method

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[Book] Electron Cyclotron Emission and Electron Cyclotron Resonance Heating(Calculation of the RF propagation for the ITER equatorial ECH/ECCD launcher)2009

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[Book] E lectron Cyclotron Emission and Electron Cyclotron Resonance Heating (Calculation of the RF propagation for the ITER equatorial ECH/ECCD launcher)2009

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[Book] STRONG MICROWAVES : SOURCE AND APPLICATIONS(High power 170GHz gyrotron development in JAEA)2009

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[Book] STRONG MICROWAV ES: SOURCE AND APPLICATIONS (High power 170GHz gyrotron development in JAEA)

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[Journal Article] Electron heating of over-dense plasma with dual-frequency electron cyclotron waves in fully non-inductive plasma ramp-up on the QUEST spherical tokamak2020

Author(s)

Journal Title

SAKAMOTO Keishi 坂本慶司

SAKAMOTO Keiji 坂本慶司