Toyama Takeshi 外山毅

… Alternative Names

TOYAMA Takeshi 外山毅

TOYAMA Tsuyoshi 外山毅

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Researcher Number	30207641
Other IDs	https://orcid.org/0000-0002-0198-9370
Affiliation (Current)	2023: 大学共同利用機関法人高エネルギー加速器研究機構, 加速器研究施設, シニアフェロー
Affiliation (based on the past Project Information) *help	2012 – 2021: 大学共同利用機関法人高エネルギー加速器研究機構, 加速器研究施設, 教授 2015: 高エネルギー加速器研究機構, 加速器研究施設, 教授 2007: High Energy Accelerator Research Organization, Accelerator Laboratory, Associate Professor 2005 – 2006: High Energy Accelerator Research Organization, Accelerator Laboratory, Associate professor 2004: 高エネルギー加速器研究機構, 加速器研究施設, 助教授 … More 1997: KEK-High Energy Accelerator Research Organization, Research Associate, 助手 1997: 高エネルギー加速器研究機構, 加速器研究施設, 助手 1994 – 1996: 高エネルギー物理学研究所, 加速器研究部, 助手 Less
Review Section/Research Field	Principal Investigator Particle/Nuclear/Cosmic ray/Astro physics Except Principal Investigator Mathematics and Physics / Science and Engineering / Quantum beam science / Particle/Nuclear/Cosmic ray/Astro physics / 素粒子・核・宇宙線 / Quantum beam science
Keywords	Principal Investigator head-tail instability / electron-cloud / feedback damper / collective beam instability Except Principal Investigator 偏極ビーム / ビームモニター / 大強度ビーム / 加速器 / Polarization / Drell-Hearn-Gerasimov総和則 … More / 偏極電子 / フォトカソード / 偏極度 / 偏極電子源 / 大強度陽子加速器 / ニュートリノ振動 / スーパーカミオカンデ / J-PARC / CP対称性 / ニュートリノ / 加速器設計 / 電波シールド / モニター / モニタ / 電磁シールド / high sensitivity camera / nitrogen / gas jet / high intensity beam / beam prifile / beam monitor / 高感度カメラ / 窒素 / ガスジェット / ビームプロファイル / Gerasimov-Drell-Hearn sum rule / MAMI / Superlattice / ELSA / Depolarization resonance / Polarized Electron Source / Polarized beam / 電界放出暗電流 / 歪み超格子 / 高周波電子銃 / 電子スピン / GDH総和則 / 超格子フォトカソード / 偏極電子ビーム / ゲラシモフードレルーハーン総和則 / MAMI(マミ) / 超格子 / ELSA(エルザ) / 減偏極共鳴 / マグネティック・ホーン / ニュートリノ・ビーム / 原子核ビーム / 速い取り出し / スーパーサイクル運転 / ビームライン / ニュートリノビーム / 時分割 / 核ビーム / 多機能化 / スーパーサイクル / Beam Line / Neutrino Beam / Time Sharing / High Intensity Beam / Polarized Beam / Nuclear Beam / Multi-function / Super-cycle / GDH experiment / depolarization / superlattice / strained GaAs / Photocathode / quantum efficiency / Polarized electron source / 偏極電子銃 / 偏極ターゲット / Gerasimov-Drell-Hearn総和則 / 負の電子親和性 / 歪みGaAs / 量子効率 / 源偏極共鳴 / Radiation-Resistant Devices / Radiation Shielding / Beam Control / Beam Moniter / High-Intensity Beam Transport / High-Energy Proton Accelaretor / Nuclear Physics / Elementary Particle Physics / 高エネルギー実験 / 放射線管理 / ビーム輸送 / 陽子加速器施設 / K中間子工場 / 耐放射線機器 / 放射線遮蔽 / ビームコントロール / 大強度ビーム輸送 / 高エネルギー陽子加速器 / 原子核実験物理 / 素粒子実験物理 / ビームハロー / 非破壊 / プロファイル Less

Impedance and radiation during the passage of beams through a ceramic break
- Principal Investigator
  
  Shobuda Yoshihiro
- Project Period (FY)
  2017 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Quantum beam science
- Research Institution
  Japan Atomic Energy Agency
Measurement of CP symmetry of neutrino by upgrading T2K experiment
- Principal Investigator
  
  小林隆
- Project Period (FY)
  2016 – 2020
- Research Category
  
  Grant-in-Aid for Specially Promoted Research
- Review Section
  
  Science and Engineering
  Mathematics and Physics
- Research Institution
  High Energy Accelerator Research Organization
Development of a beam monitor of two dimensional beam profile and beam halo with high sensitivity for high intensity beams
- Principal Investigator
  
  HASHIMOTO YOSHINORI
- Project Period (FY)
  2012 – 2015
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Quantum beam science
- Research Institution
  High Energy Accelerator Research Organization
Development of a detector for a two-dimensional type beam profile monitor with the use of high intensity beams
- Principal Investigator
  
  HASHIMOTO Yoshinori
- Project Period (FY)
  2006 – 2007
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Particle/Nuclear/Cosmic ray/Astro physics
- Research Institution
  High Energy Accelerator Research Organization
Hadron Accelerator improvement toward high intensity and hi8gh brightness beamsPrincipal Investigator
- Principal Investigator
  
  TOYAMA Takeshi
- Project Period (FY)
  2004 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Particle/Nuclear/Cosmic ray/Astro physics
- Research Institution
  High Energy Accelerator Research Organization
Polarized Electron Beam Experiments at Bonn and Mainz Universities
- Principal Investigator
  
  NAKANISHI Tsutomu
- Project Period (FY)
  1996 – 1997
- Research Category
  
  Grant-in-Aid for international Scientific Research
- Research Field
  
  素粒子・核・宇宙線
- Research Institution
  Nagoya University
Design Study of Multi-Purpose Beam Line
- Principal Investigator
  
  TAKASAKI Minoru
- Project Period (FY)
  1995 – 1996
- Research Category
  
  Grant-in-Aid for international Scientific Research
- Research Institution
  National Laboratory for High Energy, Physics
Polarized Electron Beam Experiments at Bonn and Mainz Universities
- Principal Investigator
  
  NAKANISHI Tsutomu
- Project Period (FY)
  1994 – 1995
- Research Category
  
  Grant-in-Aid for international Scientific Research
- Research Institution
  Nagoya University
Design Study of Beam Lines of the Kaon Factory
- Principal Investigator
  
  TAKASAKI Minoru
- Project Period (FY)
  1993 – 1994
- Research Category
  
  Grant-in-Aid for international Scientific Research
- Research Institution
  National Laboratory for High Energy Physics(KEK)

All 2021 2020 2019 2018 2017 2016 2006 2005 2004 Other

All Journal Article Presentation

[Journal Article] Titanium nitride-coated ceramic break for wall current monitors with an improved broadband frequency response2020
- Author(s)
  Shobuda Yoshihiro、Toyama Takeshi
- Journal Title
  
  Physical Review Accelerators and Beams
  
  Volume: 23 Issue: 9 Pages: 092801-092801
- DOI
  10.1103/physrevaccelbeams.23.092801
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17K05124
[Journal Article] MEASUREMENTS OF THE ENERGY DISTRIBUTION OF THE ELECTRON CLOUD AT J-PARC MR2017
- Author(s)
  B. Yee-Rendon, H. Kuboki, R. Muto, M. Okada, K. Satou, M. Tomizawa and T. Toyama
- Journal Title
  
  Proceedings of the 14th Annual Meeting of Particle Accelerator Society of Japan
  
  Volume: 1 Pages: 1069-1071
- Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06288
[Journal Article] J-PARC Main Ring 大強度運転のためのビーム位置モニター(BPM)の高度化2017
- Author(s)
  小林愛音、外山毅、佐藤健一郎、久保木浩功
- Journal Title
  
  Proceedings of the 14th Annual Meeting of Particle Accelerator Society of Japan
  
  Volume: 1 Pages: 187-191
- Open Access
- Data Source
  KAKENHI-PROJECT-16H06288
[Journal Article] Electron cloud simulations for the main ring of J- PARC2017
- Author(s)
  Bruce Yee-Rendon, Ryotaro Muto, Kazuhito Ohmi, Kenichirou Satou, Masahito Tomizawa and Takeshi Toyama
- Journal Title
  
  Journal of Physics: Conference Series
  
  Volume: 874 Pages: 1-6
- DOI
  10.1088/1742-6596/874/1/012065
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06288
[Journal Article] NEW DESIGN OF A TAPERED-COUPLER BPM TOWARD SIMPLER GEOMETRY AND FLATTER FREQUENCY RESPONSE2017
- Author(s)
  T. Toyama, T. Koseki, H. Kuboki, M. Okada, W. Uno, A. Ichikawa, K. Nakamura, T. Nakaya
- Journal Title
  
  Proceedings of IBIC2017
  
  Volume: 1 Pages: 237-239
- Open Access
- Data Source
  KAKENHI-PROJECT-16H06288
[Journal Article] MEASUREMENT OF TRANSVERSE MULTIPOLE MOMENTS OF THE PROTON BEAM IN THE J-PARC MR2017
- Author(s)
  T. Toyama, T. Koseki, H. Kuboki, M. Okada, W. Uno, Y. Nakanishi, A. Ichikawa, K. Nakamura, T. Nakaya, A. Minamino
- Journal Title
  
  Proceedings of IPAC2017
  
  Volume: 1 Pages: 274-276
- Open Access
- Data Source
  KAKENHI-PROJECT-16H06288
[Journal Article] PYECLOUD SIMULATIONS OF THE ELECTRON CLOUD FOR THE J-PARC MR2017
- Author(s)
  B.Yee-Rendon, R. Muto, K. Ohmi, M. Okada, K. Satou, M. Tomizawa and T. Toyama
- Journal Title
  
  Proceedings of the 14th Annual Meeting of Particle Accelerator Society of Japan
  
  Volume: 1 Pages: 197-200
- Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06288
[Journal Article] UPGRADE OF THE BEAM POSITION MONITORING SYSTEM AT THE J-PARC MAIN RING FOR HIGH INTENSITY OPERATION2017
- Author(s)
  Aine Kobayashi, Takeshi Toyama, Kenichiro Satou, Hironori Kuboki
- Journal Title
  
  Proceedings of IBIC2017
  
  Volume: 1 Pages: 229-232
- Open Access
- Data Source
  KAKENHI-PROJECT-16H06288
[Journal Article] Feedback damping of the transverse head-tail instability2006
- Author(s)
  Takeshi Toyamaet al.
- Journal Title
  
  KEK Internal Report, Study Report SR-588
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540272
[Journal Article] 横方向ヘッドテール不安定性のフィードバックによる抑制2006
- Author(s)
  外山毅, 他
- Journal Title
  
  KEK Internal Report SR-591
  
  Pages: 1-6
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540272
[Journal Article] Proceedings of the 3rd Annual Meeting of Particle Accelerator Society of Japan2006
- Author(s)
  Takeshi Toyamaet al.
- Journal Title
  
  Accelerator Society of Japan
  
  Pages: 672-674
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540272
[Journal Article] 横方向ヘッドテール不安定性のフィードバックによる抑制2006
- Author(s)
  外山毅
- Journal Title
  
  KEK Internal Report SR-588
- Data Source
  KAKENHI-PROJECT-16540272
[Journal Article] KEK-PS MRでの横方向フィードバック・ダンパー実験2006
- Author(s)
  外山毅, 他
- Journal Title
  
  第3回加速器学会プロシーディングス
  
  Pages: 672-672
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540272
[Journal Article] 横方向ヘッドテール不安定性のフィードバックによる抑制2006
- Author(s)
  外山毅, 他
- Journal Title
  
  KEK Internal Report SR-588
  
  Pages: 1-2
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540272
[Journal Article] 横方向ヘッドテール不安定性のフィードバックによる抑制2006
- Author(s)
  外山毅
- Journal Title
  
  KEK Internal Report SR-591
- Data Source
  KAKENHI-PROJECT-16540272
[Journal Article] Feedback damping of the transverse head-tail instability2006
- Author(s)
  Takeshi Toyamaet al.
- Journal Title
  
  KEK Internal Report, Study Report SR-591
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540272
[Journal Article] Design of a Feedback-damper for J-PARC Rings2005
- Author(s)
  T.Toyama, T.Miura
- Journal Title
  
  加速器学会
- Data Source
  KAKENHI-PROJECT-16540272
[Journal Article] Measurement of betatron-tune in the KEK 12GeV-PS/J-PARC2004
- Author(s)
  T. Miura, T. Toyama
- Journal Title
  
  Proceedings of the 1st Annual Meeting of Particle Accelerator Society of Japan
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540272
[Journal Article] Simulation of Ep Instability for a Coasting Proton Beam in Circular Accelerators2004
- Author(s)
  K.Ohmi, T.Toyama, G.Rumolo
- Journal Title
  
  Proc.of EPAC 2004
  
  Pages: 2104-2106
- Data Source
  KAKENHI-PROJECT-16540272
[Journal Article] Electron Cloud Studies in J-PARC and KEK-PS2004
- Author(s)
  T. Toyama, K. Ohmi
- Journal Title
  
  ICFA Beam Dynamics Newsletters No.33
  
  Pages: 114-119
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540272
[Journal Article] Electron Cloud Studies in J-PARC and KEK-PS2004
- Author(s)
  T. Toyama, K. Ohmi
- Journal Title
  
  ICFA Beam Dynamics Newsletters NO. 33
  
  Pages: 114-119
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540272
[Journal Article] ELECTRON CLOUD BUILD-UP AND BEAM INSTABILITIES IN THE KEK-PS AND J-PARC2004
- Author(s)
  外山毅, 他
- Journal Title
  
  第1回加速器学会プロシーディングス
  
  Pages: 625-625
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540272
[Journal Article] Simulation of Ep Instability for a Coasting Proton Beam in Circular Accelerators2004
- Author(s)
  K. Ohmi, T. Toyama, G. Rumolo
- Journal Title
  
  Proc.of EPAC2004
  
  Pages: 2107-2109
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540272
[Journal Article] Study of Impedances and Instabilities in J-PARC2004
- Author(s)
  T.Toyama, K.Ohmi, Y.Shobuda
- Journal Title
  
  Proc.of EPAC 2004
  
  Pages: 1336-1338
- Data Source
  KAKENHI-PROJECT-16540272
[Journal Article] Study of Impedances and Instabilities in J-PARC2004
- Author(s)
  T. Toyama, K. Ohmi, Y. Shobuda
- Journal Title
  
  Proc.of EPAC2004
  
  Pages: 1336-1338
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540272
[Journal Article] Measurement of betatron-tune in the KEK 12GeV-PS/J-PARC2004
- Author(s)
  三浦孝子, 外山毅, 他
- Journal Title
  
  第1回加速器学会プロシーディングス
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540272
[Journal Article] Electron Cloud Studies in J-PARC and KEK-PS2004
- Author(s)
  T.Toyama, K.Ohmi
- Journal Title
  
  ICFA Beam Dynamics Newsletters No.33
  
  Pages: 114-119
- Data Source
  KAKENHI-PROJECT-16540272
[Journal Article] ELECTRON CLOUD BUILD-UP ND BEAM INSTABILITIES IN THE KEK-PS AND J-PARC2004
- Author(s)
  Takeshi Toyamaet al.
- Journal Title
  
  Proceedings of the 1st Annual Meeting of Particle Accelerator Society of Japan
  
  Pages: 625-627
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540272
[Journal Article] Study of Impeda Instability for a Coasting Proton Beam in Circular Accelerators
- Author(s)
  T. Toyama, K. Ohmi, Y. Shobuda
- Journal Title
  
  Proc. of EPAC2004
  
  Pages: 1336-1338
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540272
[Journal Article] Rumolo, Simulation of Ep Instability for a Coasting Proton Beam in Circular Accelerators
- Author(s)
  K. Ohmi, T. Toyama, G.
- Journal Title
  
  Proc. of EPAC2004
  
  Pages: 2107-2109
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540272
[Presentation] DEVELOPMENT OF A PROFILE MONITOR USING OTR AND FLUORESCENCE FOR INJECTED BEAMS IN J-PARC MAIN RING,2021
- Author(s)
  Y. Hashimoto, Y. Sato, T.Toyama et al.
- Organizer
  10th International Beam Instrumentation Conference (IBIC2021)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06288
[Presentation] J-PARC Main Ring の入射ビームのためのOTRと蛍光を用いたワイドダイナミックレンジプロファイルモニターの開発(2)2021
- Author(s)
  橋本義徳、佐藤洋一、外山　毅
- Organizer
  第18回日本加速器学会年会
- Data Source
  KAKENHI-PROJECT-16H06288
[Presentation] J-PARC Main Ring の入射ビームのためのOTRと蛍光を用いたワイドダイナミックレンジプロファイルモニターの開発2020
- Author(s)
  橋本義徳、佐藤洋一、外山　毅、他
- Organizer
  第17回日本加速器学会年会
- Data Source
  KAKENHI-PROJECT-16H06288
[Presentation] Development of Wide Dynamic-Range Beam Profile Monitor Using OTR and Fluorescence for Injected Beams in J-PARC Main Ring2019
- Author(s)
  Y. Hashimoto, Y. Sato, T. Toyama et al.
- Organizer
  2019 J-PARC Symposium 2019
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06288
[Presentation] J-PARC MR におけるOTR と蛍光を用いた高ダイナミックレンジ２次元ビームプロファイルモニターの導入2019
- Author(s)
  佐藤洋一、橋本義徳、外山　毅、他
- Organizer
  第16回日本加速器学会年会
- Data Source
  KAKENHI-PROJECT-16H06288
[Presentation] J-PARC 3-50BT のビーム位置モニタによるビームサイズ測定 (2)2018
- Author(s)
  外山毅, 久保木浩功, 佐藤健一郎, 手島昌己
- Organizer
  第 15 回日本加速器学会年会
- Data Source
  KAKENHI-PROJECT-16H06288
[Presentation] J-PARC MR の大強度運転へ向けたバンチトレインチューンシフトの研究2018
- Author(s)
  小林愛音、外山毅、五十嵐進、佐藤洋一、下川哲司、久保木浩功
- Organizer
  第 15 回日本加速器学会年会
- Data Source
  KAKENHI-PROJECT-16H06288
[Presentation] Bench Test Result of a Tapered-Slot Coupler BPM with Simpler Geometry and Flatter Frequency Response2018
- Author(s)
  T. Toyama, H. Kuboki, M. Okada
- Organizer
  International Beam Instrumentation Conference（IBIC）2018
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06288
[Presentation] NEW DESIGN OF A TAPERED-COUPLER BPM TOWARD SIMPLER GEOMETRY AND FLATTER FREQUENCY RESPONSE2017
- Author(s)
  T. Toyama
- Organizer
  IBIC2017
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06288
[Presentation] MEASUREMENT OF TRANSVERSE MULTIPOLE MOMENTS OF THE PROTON BEAM IN THE J-PARC MR2017
- Author(s)
  T. Toyama
- Organizer
  IPAC2017
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06288
[Presentation] J-PARC accelerator2017
- Author(s)
  T. Toyama
- Organizer
  Neutrino Frontier Workshop 2017
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06288
[Presentation] Wideband Stripline BPM for Precise Measurements of Internal Bunch Motion in Proton Synchrotrons2016
- Author(s)
  外山毅
- Organizer
  IBIC2016
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H06288

1. SATOH Hikaru (80100816)

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2. HASHIMOTO YOSHINORI (10391749)

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3. MUTO Suguru (90249904)

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4. TAKASAKI Minoru (70044782)

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5. UWAMINO Yoshitomo (60160339)

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6. SHIBATA Tokushi (80028224)

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7. MIURA Taichi (80209717)

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8. NOUMI Hiroyuki (10222192)

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9. IEIRI Masaharu (50192472)

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10. TANAKA Kazuhiro (90171743)

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11. CHIBA Junsei (50126124)

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12. IMAZATO Jun (40107686)

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13. NAKAI Koji (40028155)

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14. NAKANISHI Tsutomu (40022735)

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15. ARENDS H.j.

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16. REICHERT E.

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17. HUSMANN D.

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18. SCHOCH B.

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19. REICHELT T.

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20. HORI Yoichiro (80183937)

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21. SUZUKI Takenori (40162961)

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22. NISHIKAWA Koichiro (60198439)

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23. MURAKAMI Tetsuya (50219896)

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24. SAKAI Izumi (30141972)

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25. NUMAJIRI Masaharu (20189385)

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26. NAKAMUA Kenzo (10011735)

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27. TAKAYAMA Ken (20163321)

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28. OHMI Kazuhito (10194292)

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29. LEE Seishu (20353360)

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30. MIURA Takako (90370072)

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31. Shobuda Yoshihiro (90370410)

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32. 吉村浩司 (50272464)

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52. SUBERLUCQ G.

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Toyama Takeshi 外山 毅

TOYAMA Takeshi 外山 毅

TOYAMA Tsuyoshi 外山 毅

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Hadron Accelerator improvement toward high intensity and hi8gh brightness beamsPrincipal Investigator

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[Journal Article] Titanium nitride-coated ceramic break for wall current monitors with an improved broadband frequency response2020

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[Journal Article] MEASUREMENTS OF THE ENERGY DISTRIBUTION OF THE ELECTRON CLOUD AT J-PARC MR2017

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[Journal Article] J-PARC Main Ring 大強度運転のためのビーム位置モニター(BPM)の高度化2017

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[Journal Article] Electron cloud simulations for the main ring of J- PARC2017

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[Journal Article] NEW DESIGN OF A TAPERED-COUPLER BPM TOWARD SIMPLER GEOMETRY AND FLATTER FREQUENCY RESPONSE2017

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[Journal Article] MEASUREMENT OF TRANSVERSE MULTIPOLE MOMENTS OF THE PROTON BEAM IN THE J-PARC MR2017

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[Journal Article] PYECLOUD SIMULATIONS OF THE ELECTRON CLOUD FOR THE J-PARC MR2017

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[Journal Article] UPGRADE OF THE BEAM POSITION MONITORING SYSTEM AT THE J-PARC MAIN RING FOR HIGH INTENSITY OPERATION2017

Toyama Takeshi 外山毅

TOYAMA Takeshi 外山毅

TOYAMA Tsuyoshi 外山毅