Numakura Tomoharu

Affiliation

Faculty of Pure and Applied Sciences

Official title

Assistant Professor

Birth date

1975-06

Email

CJB6@JG6XgcEG8aIHJ@J76a68a?E 

Phone

0298537473

Research fields

Plasma science

Research keywords

Scaling law

Diagnostics

Plasma Confinement

Research projects

高電位・強径電場シアー形成によるプラズマ閉じ込め改善効果の評価	-- (current)		/
高電位・強径電場シアー形成によるプラズマ閉じ込め改善効果の評価	2007 -- 2008		Japan Society of for the Promotion of Science/若手研究(B)	800,000Yen

Academic background

-- 1998-03	University of Tsukuba First Cluster of College 自然学類物理学専攻	Graduated
-- 2003-03	University of Tsukuba Graduate School, Division of Physics 物理学専攻	Completed

Degree

Doctor of Science

University of Tsukuba

Licenses and qualifications

2011-02

第一種冷凍機械

Academic societies

-- (current)

THE JAPAN SOCIETY OF PLASMA SCIENCE AND NUCLEAR FUSION RESEARCH

Honors & Awards

2004-06	核融合エネルギー連合講演会に於ける論文発表による優秀賞
2003-03	筑波大学大学院優秀論文表彰

Articles

• Generation and Measurement of High Intermittent Heat Flux in GAMMA 10/PDX
  Minami Ryutaro; KARIYA Tsuyoshi; IMAI Tsuyoshi; NUMAKURA ...
  Plasma and Fusion Research/14/pp.2402034-2402034, 2019-02
  CiNii Tsukuba Repository
• Development of High Power Gyrotrons for Advanced Fusion Devices and DEMO
  Kariya Tsuyoshi; Minami R.; Imai T.; Numakura T.; M. OKAD...
  The 27th IAEA FUSION ENERGY CONFERENCE (FEC-2018), 2018-10
• Code Development for Calculating Electron Beams in the Cavities of the Future High-Power Gyrotrons
  NUMAKURA Tomoharu; KARIYA Tsuyoshi; MINAMI Ryutaro; OKADA...
  Plasma and Fusion Research/14/pp.2405052-2405052, 2019
  CiNii Tsukuba Repository
• Development of over-MW gyrotrons for fusion at 14 GHz to sub-THz frequencies
  假家 強; Tsuyoshi Imai; Ryutaro MInami; K. Sakamoto Y. Od...
  Nuclear Fusion/57, 2017-04
• Performance Test of Double-Disk Type Output Window of 28/35 GHz Dual-Frequency Gyrotron for CW Operation
  Okada Maki; kariya Tsuyoshi; Imai Tsuyoshi; Minami Ryutar...
  Plasma and Fusion Research/14/pp.2405043-2405043, 2019-02
  CiNii Tsukuba Repository
• Development of high power gyrotrons for advanced fusion devices
  Kariya T.; Minami R.; Imai T.; Okada M.; Motoyoshi F.; Nu...
  NUCLEAR FUSION/59(6), 2019-04
• Synergistic effect of nitrogen and hydrogen seeding gases on plasma detachment in the GAMMA 10/PDX tandem mirror
  Ezumi N.; Iijima T.; Sakamoto M.; Nakashima Y.; Hirata M....
  NUCLEAR FUSION/59(6), 2019-06
• Impact of additional plasma heating on detached plasma formation in divertor simulation experiments using the GAMMA 10/PDX tandem mirror
  Nakashima Y.; Islam M. S.; Iijima T.; Sakamoto M.; Ezumi ...
  NUCLEAR MATERIALS AND ENERGY/18/pp.216-221, 2019-01
• Development of over-MW gyrotrons for fusion at 14 GHz to sub-THz frequencies
  Kariya T.; Imai T.; Minami R.; Sakamoto K.; Oda Y.; Ikeda...
  Nuclear Fusion/57, 2017-04
• Numerical Calculation of the Gyrotron Oscillator in ECH Systems in GAMMA 10 by the use of Parallel Algorithms
  T. Numakura; T. Imai; T. Kariya; R. Minami; H. Nakabayash...
  Transactions of Fusion Science and Technology/63(1T)/pp.295-297, 2013-05
• Density Fluctuation Measurement for Studying the Effect of Potential and Electric Field Formation in GAMMA 10
  YOSHIKAWA Masayuki; MATSUMOTO Toshiaki; SHIMA Yoriko; MIY...
  Plasma and Fusion Research/2/pp.48-48, 2007-01
  CiNii
• Characterization and Interpretation of the Quantum Efficiencies of Multilayer Semiconductor Detectors Using a New Theory
  沼倉 友晴
  Journal of Synchrotron Radiation/5/p.877-879, 1998-01
• Investigations of Electron Behavior in the GAMMA 10 Tandem Mirror on the Basis of X-Ray Analyses Using a Novel Theory on Semiconductor Detector Response
  沼倉 友晴
  Transactions of Fusion Technology/35/p.151-155, 1999-01
• Effects of Neutrons on Semiconductor X-Ray Detectors Including n-Type Joint European Torus and p-Type GAMMA 10 Tomography Detectors
  沼倉 友晴
  Review of Scientific Instruments/70/p.577-580, 1999-01
• Newly Developed Matrix-Type Semiconductor Detector for Temporally and Spatially Resolved X-Ray Analyses Ranging Down to a Few Tens eV Using a Single Plasma Shot
  沼倉 友晴
  Review of Scientific Instruments/70/p.633-636, 1999-01
• Characterization of a Semiconductor Detector and Its Application for Ion Diagnostics Using a Novel Ion Energy Spectrometer
  沼倉 友晴
  Review of Scientific Instruments/70/p.857-860, 1999-01
• A New Principle in Plasma Electron-Temperature Diagnostics Using a Semiconductor X-ray Detector
  沼倉 友晴
  Plasma Devices and Operations/7/p.85-92, 1999-01
• Reduction of Radial Loss by Conducting Plates Installed in Anchor Regions of GAMMA 10
  沼倉 友晴
  Chinese Physics Letters/362/p.69-72, 1999-01
• A diagnostic method for both plasma ion and electron temperatures under simultaneous incidence of charge-exchange particles and x rays into a semiconductor detector array
  沼倉 友晴
  Applied Physics Letters/76(2)/p.146-148, 2000-01
• Summarized Scaling Laws of Potential Confined Plasmas in the GAMMA 10 Tandem Mirror
  沼倉 友晴
  Transactions of Fusion Technology/39/p.33-40, 2001-01
• Temporal Evolution of Spatially Resolved Electron Temperatures Using Single-Shot X-ray Data on Both Circular Central-Cell and Elliptical Anchor-Region Plasmas in GAMMA 10
  沼倉 友晴
  Transactions of Fusion Technology/39/p.297-300, 2001-01
• Characterization of X-ray-Energy Responses of Semiconductor Detectors after Fusion Produced Neutron Exposure
  沼倉 友晴
  Transactions of Fusion Technology/39/p.159-162, 2001-01
• Development of Novel Ion-Energy Spectrometer Using a Semiconductor Collector Under a Circumstance of Simultaneously Incident Ions and Electrons with X rays
  沼倉 友晴
  Transactions of Fusion Technology/39/p.281-284, 2001-01
• Investigation of X-ray-Energy Responses of Semiconductor Detectors under Deuterium-Tritium Fusion-Produced Neutron Irradiation
  沼倉 友晴
  Review of Scientific Instruments/72/p.805-808, 2001-01
• Simultaneous Observations of Temporally and Spatially Resolved Electron Temperatures of Both Circular Central-Cell and Elliptical Anchor-Region Plasmas in GAMMA 10
  沼倉 友晴
  Review of Scientific Instruments/72/p.1193-1196, 2001-01

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Conference, etc.

• Present Status of the LHD-ECRH System and Activities of Gyrotron and Transmission-line Improvement
  Shimozuma T.; S. Kubo Y. Yoshimura M. Nishiura H. Igami H...
  US-EU-JPN RF Heating Technology Workshop 2019/2019-09-09--2019-09-12
• 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
  本吉 郁哉; 假家 強; 今井剛; 南 龍太郎; 沼倉友晴; 出射浩; ...
  第36回 プラズマ・核融合学会 年会/2019-11-29--2019-12-02
• 電子サイクロトロン高密度プラズマ加熱連携研究における2周波数(28/35GHz,14/21GHz)ジャイロトロンの開発とECH実験への適用
  假家 強; 今井 剛; 南龍太郎; 沼倉友晴; 本吉郁哉; 出射 浩 ...
  第一壁・周辺プラズマ・ダイバータ理工学合同シンポジウム/2019-09-09--2019-09-10
• GAMMA PDX-SC project: status and perspectives
  Sakamoto M.; Nakashima Y.; Ezumi Naomichi; Katanuma I.; K...
  12th International Conference on Open Magnetic Systems for Plasma Confinement (OS2018)/2018-08-27--2018-08-31
• Impact of additional plasma heating on detached plasma formation in divertor simulation experiments using the GAMMA 10/PDX tandem mirror
  Nakashima Y.; Islam M.S.; Iijima T.; Yokodo T.; Sakamoto ...
  23rd International Conference on Plasma Surface Interactions in Controlled Fusion Devices (PSI-23)/2018-06-17--2018-06-22
• GAMMA 10/PDXセントラル部でのECRH偏波制御に関する実験
  南 龍太郎; 北條俊孝; 假家強; 沼倉友晴; 岡田麻希; 本吉郁哉...
  第35回プラズマ・核融合学会年会/2018-12-03--2018-12-06
• GAMMA 10/PDXセントラル部におけるECHアンテナ系の改良設計
  南 龍太郎; 八房拓也; 假家強; 沼倉友晴; 岡田麻希; 北條俊孝...
  第35回プラズマ・核融合学会年会/2018-12-03--2018-12-06
• Generation and Measurement of High Intermittent Heat Flux in GAMMA 10/PDX
  Minami Ryutaro; KARIYA Tsuyoshi; IMAI Tsuyoshi; NUMAKURA ...
  12th International Conference on Open Magnetic Systems for Plasma Confinement (OS2018)/2018-08-27--2018-08-31
• Loss Electron Diagnostic Systems for Measurements of High Intermittent Heat Flux in GAMMA 10 Tandem Mirror
  Minami Ryutaro; Kariya T.; Imai T.; Numakura T.; Kajino S...
  The 22nd Topical Conference on High-Temperature Plasma Diagnostics (HTPD 2018)/2018-04-15--2018-04-19
• ガンマ10/PDXのECH実験と高出力ジャイロトロンの計算コードの開発
  沼倉友晴; 假家強; 南龍太郎; 岡田麻希; 北條俊孝; 本吉郁哉;...
  第35回 プラズマ核融合学会 年会/2018-12-03--2018-12-06
• Code development for the calculations of the electron beams in the cavity of the future high-power gyrotrons
  Numakura Tomoharu; T.Kariya; R.Minami; M.Okada; T.Hojo; F...
  12th International Conference on Open Magnetic Systems for Plasma Confinement (OS2018)/2018-08-27--2018-08-31
• ミリ波ジャイロトロンの開発と応用
  假家 強; 南龍太郎; 沼倉友晴; 岡田麻希、本吉郁哉、北條俊孝...
  第35回 プラズマ核融合学会 年会/2018-12-03--2018-12-06
• 28/35 GHz 2周波数ジャイロトロンの性能評価試験とプラズマ加熱に向けたRF伝送試験
  岡田麻希; 假家強; 今井剛; 南龍太郎; 沼倉友晴; 本吉郁哉 姫...
  第35回 プラズマ核融合学会 年会/2018-12-3--2018-12-6
• DEMO用240 GHzジャイロトロンの試設計
  本吉郁哉; 假家強; 南龍太郎; 今井剛; 沼倉友晴; 岡田麻希; ...
  第35回 プラズマ核融合学会 年会/2018-12-3--2018-12-6
• Development of High Power Gyrotrons for Advanced Fusion Devices and DEMO
  Kariya Tsuyoshi; Ryutaro Minami; Tsuyoshi Imai; Tomoharu ...
  The 27th IAEA FUSION ENERGY CONFERENCE (FEC-2018)/2018-09-22--2018-09-27
• Performance Test of 28/35 GHz Dual-Frequency Gyrotron for CW Operation
  Maki Okada; Tsuyoshi Kariya; Tsuyoshi Imai; Ryutaro MInam...
  12th International Conference on Open Magnetic Systems for Plasma Confinement (OS2018)/2018-08-27--2018-08-31
• 電子サイクロトロン高密度プラズマ加熱連携研究における2周波数(28/35GHz,14/21GHz)ジャイロトロンの開発と
  假家 強; 今井剛; 南　龍太郎; 沼倉友晴; 津村康平 江橋優斗 ...
  平成30年度筑波大学プラズマ研究センタ－シンポジューム, ﾀﾞｲﾊﾞｰﾀ研究開発加速戦略方策検討評価WGﾌｫﾛｰｱｯﾌﾟ会合/2018-08-02--2018-08-03
• EC加熱電流駆動用ジャイロトロンの開発
  假家 強; 南　龍太郎; 今井剛; 沼倉友晴; 岡田麻希、本吉郁哉...
  第12回核融合エネルギー連合講演会 シンポジウム/2018-06-28--2018-06-29
• Present status and future in GAMMA 10/PDX Project
  Nakashima N.; Sakamoto M.; Kariya T.; Yoshikawa Masayuki;...
  The 12th Open Magnetic Confinement Systems for Plasma Confinement/2018-08-27--2018-08-31
• Recent research progress on plasma detachment in divertor simulation experiments in GAMMA 10/PDX
  江角 直道; 坂本 瑞樹; 飯島 貴朗; イスラム シャヒヌル; 寺...
  第35回 プラズマ・核融合学会 年会/2018-12-03--2018-12-06
• Synergistic Effect of Impurity and Hydrogen Gas Puffs on Plasma Detachment in the GAMMA 10/PDX Tandem Mirror
  Ezumi Naomichi; Iijima T.; Sakamoto M.; Nakashima Y.; Hir...
  27th IAEA Fusion Energy Conference (FEC2018)/2018-10-22--2018-10-27
• Code Development for the Future High-Power Gyrotrons and Recent Results of ECH Experiments in GAMMA 10/PDX
  Numakura Tomoharu; Kariya; Minami; Maki Okada; Toshitaka ...
  2018 US-EU-JPN RF Heating Technology Workshop / US-Japan Workshop on RF Heating Physics/2018-09-04--2018-09-07
• Current status and future plan of divertor simulation experiments in the University of Tsukuba
  Nakashima Yousuke; Iijima T.; Sakamoto M.; Ezumi N.; Kata...
  6th International Workshop on Plasma Material Interaction Facilities for Fusion Research (PMIF2017)/2017-11-1--2017-11-3
• Current Status of Divertor Simulation Research in the GAMMA 10/PDX Tandem Mirror
  Nakashima Yousuke; Sakamoto M.; Katanuma I.; T.Kariya; Yo...
  Joint meeting of 26th International Toki Conference and 11th Asia Plasma & Fusion Association Conference/2017-12-05--2017-12-08
• R&D of high temperature and high density divertor plasma simulator with mirror confinement
  Sakamoto M.; Nakashima Y.; Ezumi Naomichi; Ikezoe R.; Kat...
  6th International Workshop on Plasma Material Interaction Facilities for Fusion Research (PMIF2017)/2017-11-01--2017-11-03

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Teaching

2019-10 -- 2020-02	Advanced Research on Plasmas III	University of Tsukuba.
2019-04 -- 2019-08	Advanced Research on Plasmas IIB	University of Tsukuba.
2019-04 -- 2019-08	Advanced Research on Plasmas IVA	University of Tsukuba.
2019-10 -- 2020-02	Advanced Research on Plasmas IA	University of Tsukuba.
2019-10 -- 2020-02	Practical Training in Physics II	University of Tsukuba.
2019-04 -- 2019-08	Practical Training in Physics II	University of Tsukuba.
2019-04 -- 2019-08	Advanced Research on Plasmas IVB	University of Tsukuba.
2019-10 -- 2020-02	Internship in Physics 1	University of Tsukuba.
2019-04 -- 2019-08	Internship in Physics 1	University of Tsukuba.
2019-10 -- 2020-02	Advanced Research on Plasmas VA	University of Tsukuba.

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(Last updated: 2019-07-23)