Seki Ryosuke 關良輔

… Alternative Names

SDEKI Ryouske 関良輔

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Researcher Number	80581066
Other IDs
Affiliation (Current)	2025: 核融合科学研究所, 研究部, 助教
Affiliation (based on the past Project Information) *help	2023 – 2025: 核融合科学研究所, 研究部, 助教 2019 – 2022: 核融合科学研究所, ヘリカル研究部, 助教 2009: 北海道大学, 工学研究科・博士後期課程
Review Section/Research Field	Except Principal Investigator Basic Section 14020:Nuclear fusion-related / Medium-sized Section 14:Plasma science and related fields / Nuclear fusion studies
Keywords	Except Principal Investigator プラズマ / 高エネルギー粒子 / 燃焼プラズマ / 高エネルギーイオン / 非等方圧力 / ビーム圧力 / 電場 / 相関計測 / 乱流輸送 / 磁場閉じ込めプラズマ … More / 圧力限界 / シミュレーション / ミクロ集団ダイナミクス / ヘリカルプラズマ / 交換型不安定性 / FIDA(高速イオン由来Dアルファ線分光計測) / MHD不安定性 / 磁気計測 / MHD安定性 / MHD平衡 / 計測 / 協同トムソン散乱 / トモグラフィー / 電子サイクロトロン輻射 / 散乱計測 / 核融合 / 熱・粒子輸送 / GAN / 深層学習 / トモグラフィ / ミリ波 / 協同トムソン散乱計測 / 核融合プラズマ / 磁場閉じ込め / ヘリカル / MHD平衡・安定性 / プラズマ・核融合 Less

Pressure limits of magnetically confined fusion plasmas determined by microscopic collective dynamics
- Principal Investigator
  
  藤堂泰
- Project Period (FY)
  2024 – 2028
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 14:Plasma science and related fields
- Research Institution
  National Institute for Fusion Science
Breakthrough of turbulent transport mechanism of self-burning plasma by high energy ion and tubulence analysis
- Principal Investigator
  
  西浦正樹
- Project Period (FY)
  2023 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 14020:Nuclear fusion-related
- Research Institution
  National Institute for Fusion Science
Experiment study of Interchange MHD instability under the anisotropic pressure distribution
- Principal Investigator
  
  WATANABE KIYOMASA
- Project Period (FY)
  2020 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 14020:Nuclear fusion-related
- Research Institution
  National Institute for Fusion Science
Development of advanced millimeter wave diagnostic system for high energy ions in fusion plasmas and control for self-burning plasmas
- Principal Investigator
  
  Nishiura Masaki
- Project Period (FY)
  2019 – 2023
- Research Category
  
  Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))
- Review Section
  
  Medium-sized Section 14:Plasma science and related fields
- Research Institution
  National Institute for Fusion Science
Effects of beam pressure on the MHD equilibria and stabilities in high beta helical plasmas
- Principal Investigator
  
  WATANABE Kiyomasa
- Project Period (FY)
  2006 – 2009
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Nuclear fusion studies
- Research Institution
  National Institute for Fusion Science

All 2024 2023 2022 2021 2020 2019 2010 2009 2008

All Journal Article Presentation

[Journal Article] Degradation of fast-ion confinement depending on the neutral beam power in MHD quiescent LHD plasmas2024
- Author(s)
  Nuga H.、Seki R.、Ogawa K.、Yamaguchi H.、Kamio S.、Fujiwara Y.、Kawamoto Y.、Yoshinuma M.、Kobayashi T.、Takemura Y.、Isobe M.、Osakabe M.、Yokoyama M.
- Journal Title
  
  Nuclear Fusion
  
  Volume: 64 Issue: 6 Pages: 066001-066001
- DOI
  10.1088/1741-4326/ad3971
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19KK0073
[Journal Article] Influence of sawtooth oscillations on fast ions in a stellarator2024
- Author(s)
  Moseev D.、Zanini M.、Kasahara H.、Laqua H.、Funaba H.、Hayashi W.、Heidbrink William W、Ida K.、Igami H.、Kawamoto Y.、Kenmochi N.、Lazerson Samuel A、Nishiura M.、Ochoukov R.、Ogawa K.、Larsen Mads Rud、Salewski M.、Seki T.、Tamura N.、Tanaka K.、Tokuzawa T.、Yoshinuma M.
- Journal Title
  
  Nuclear Fusion
  
  Volume: 64 Issue: 6 Pages: 066028-066028
- DOI
  10.1088/1741-4326/ad4169
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0073
[Journal Article] Estimation of the Tritium Yields in Deuterium Fusion Plasmas Considering the Fast-Ion Velocity Distribution Function2022
- Author(s)
  NUGA Hideo、SEKI Ryosuke、OGAWA Kunihiro、KAMIO Shuji、FUJIWARA Yutaka、YAMAGUCHI Hiroyuki、OSAKABE Masaki、ISOBE Mitsutaka、YOKOYAMA Masayuki
- Journal Title
  
  Plasma and Fusion Research
  
  Volume: 17 Issue: 0 Pages: 2402023-2402023
- DOI
  10.1585/pfr.17.2402023
- ISSN
  1880-6821
- Year and Date
  2022-04-22
- Language
  English
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19KK0073
[Journal Article] Collective Thomson scattering diagnostic with in situ calibration system for velocity space analysis in large helical device2022
- Author(s)
  Nishiura Masaki、Adachi Shun、Tanaka Kenji、Kubo Shin、Kenmochi Naoki、Shimozuma Takashi、Yanai Ryoma、Saito Teruo、Nuga Hideo、Seki Ryosuke
- Journal Title
  
  Review of Scientific Instruments
  
  Volume: 93 Issue: 5 Pages: 053501-053501
- DOI
  10.1063/5.0079296
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-21K13901, KAKENHI-PROJECT-19KK0073, KAKENHI-PROJECT-18K13525, KAKENHI-PROJECT-17H01177
[Journal Article] Collective Thomson scattering with 77, 154, and 300 GHz sources in LHD2020
- Author(s)
  Nishiura M.、Tanaka K.、Kubo S.、Saito T.、Kenmochi N.、Nuga H.、Seki R.、Shimozuma T.、Yoshimura Y.、Igami H.、Takahashi H.、Tsujimura T.I.、Yanai R.、Tatematsu Y.
- Journal Title
  
  Journal of Instrumentation
  
  Volume: 15 Issue: 01 Pages: C01002-C01002
- DOI
  10.1088/1748-0221/15/01/c01002
- NAID
  120007180034
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18K13525, KAKENHI-PROJECT-19KK0073, KAKENHI-PROJECT-17H03509, KAKENHI-PROJECT-19K03799
[Journal Article] Studies of the fast ion confinement in the Large Helical Device by using neutron measurement and integrated?codes2020
- Author(s)
  Nuga H.、Seki R.、Ogawa K.、Kamio S.、Fujiwara Y.、Osakabe M.、Isobe M.、Nishitani T.、Yokoyama M.、LHD Experiment Group
- Journal Title
  
  Journal of Plasma Physics
  
  Volume: 86 Issue: 3
- DOI
  10.1017/s0022377820000525
- NAID
  120007176964
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19KK0073
[Journal Article] Monte-Carlo Study Based on Real Coordinates for Perpendicularly Injected High-Energy Ions in the LHD High-Beta Plasma2010
- Author(s)
  Ryosuke SEKI, Yutaka MATSUMOTO, Yasuhiro SUZUKI, Kiyomasa WATANABE, Kiyotaka HAMAMATSU, Masafumi ITAGAKI
- Journal Title
  
  Plasma and Fusion Research 5巻
- NAID
  130000309227
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18360445
[Journal Article] Particle Orbit Analysis in the Finite Beta Plasma of the Large Helical Device using Real Coordinates2008
- Author(s)
  R. Seki, Y. Matsumoto, et. al.
- Journal Title
  
  Plasma Fusion Res. vol.3
- NAID
  130000263898
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18360445
[Journal Article] Particle Orbit Analysis in the Finite Beta Plasma of the Large Helical Device using Real Coordinates2008
- Author(s)
  Ryousuke SEKI, Yutaka MATSUMOTO, Yasuhiro SUZUKI, Kiyomasa WATANABE and Masafumi ITAGAKI
- Journal Title
  
  Plasma and Fusion Research 3巻
- NAID
  130000263898
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18360445
[Presentation] LHDにおけるコア密度ピーキング観測III2024
- Author(s)
  西浦正樹, 佐竹真介, 清水昭博, 井戸毅, 吉沼幹朗, 矢内亮馬, 沼波政倫, 山口裕之, 藤田慶二, Salewski Mirko, 奴賀秀男, 關良輔
- Organizer
  日本物理学会　2024年春季大会
- Data Source
  KAKENHI-PROJECT-19KK0073
[Presentation] First evidence of the fast ion redistribution due to sawtooth crash in a stellarator2023
- Author(s)
  D. Moseev, M. Zanini, H. Kasahara, H.P. Laqua, H. Funaba, W. H. J. Hayashi, W. Heidbrink, K. Ida, H. Igami, Y. Kawamoto, N. Kenmochi, S. A. Lazerson, M. Nishiura, R. Ochoukov, M. Rud, M. Salewski, T. Seki, N. Tamura, K. Tanaka, M. Yoshinuma
- Organizer
  29th Fusion Energy Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0073
[Presentation] Core density peaking by control of energetic ion anisotropy in LHD2023
- Author(s)
  M. Nishiura, A. Shimizu, S. Satake, T. Ido, K. Fujita, M. Yoshinuma, R. Yanai, M. Nunami, M. Salewski, H. Yamaguchi, H. Nuga, R. Seki
- Organizer
  29th Fusion Energy Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0073
[Presentation] Orbit-following simulation of fast-ion transport and losses due to the Alfvén eigenmode burst in the Large Helical Device2023
- Author(s)
  R. Seki, Y. Todo, Y. Suzuki, D.A. Spong, K. Ogawa, M. Isobe, M. Osakabe
- Organizer
  7th Asia-Pacific Conference on Plasma Physics 2023
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0073
[Presentation] Mixed features of energetic ion population from collective scattering spectra in the Large Helical Device2022
- Author(s)
  M. Nishiura, K. Tanaka, S. Kubo, N. Kenmochi, R. Yanai, M. Gong, T. Saito, H. Nuga, R. Seki, D. Moseev, M. Salewski
- Organizer
  The 31st International Toki Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0073
[Presentation] 協同トムソン散乱計測を用いたプラズマ中の高エネルギーイオンの速度空間解析2022
- Author(s)
  西浦正樹，釼持尚輝，奴賀秀男，關良輔，久保伸，田中謙治，矢内亮馬，斉藤輝雄，Moseev Dmitry，Salewski Mirko
- Organizer
  第39回プラズマ核融合学会
- Data Source
  KAKENHI-PROJECT-19KK0073
[Presentation] Fast ion diagnostics by Collective Thomson scattering2022
- Author(s)
  M. Nishiura, K. Tanaka, S. Kubo, N. Kenmochi, R. Yanai, T. Saito, H. Nuga, R. Seki, D. Moseev, M. Salewski
- Organizer
  AAPPS-DPP2022
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0073
[Presentation] 協同トムソン散乱計測のバルクと高速イオンの速度空間トモグラフィー法2021
- Author(s)
  西浦正樹, 釼持尚輝, 奴賀秀男, 關良輔, 久保伸, 田中謙治,下妻隆,斉藤輝雄, D, Moseev Dmitry, Salewski Mirko
- Organizer
  日本物理学会2021年秋季大会
- Data Source
  KAKENHI-PROJECT-19KK0073
[Presentation] 協同トムソン散乱計測により得られた散乱スペクトルの速度空間トモグラフィー法2021
- Author(s)
  西浦正樹, 釼持尚輝, 奴賀秀男, 關良輔, 久保伸, 田中謙治, 足立迅, 下妻隆, 斉藤輝雄D, Moseev Dmitry, Salewski Mirko, LHD実験グループ
- Organizer
  日本物理学会　2021年年次大会
- Data Source
  KAKENHI-PROJECT-19KK0073
[Presentation] 協同トムソン散乱計測により得られた散乱スペクトルの速度空間再構成2020
- Author(s)
  西浦正樹, 釼持尚輝, 奴賀秀男, 關良輔, 久保伸, 田中謙治, 足立迅, 下妻隆, 斉藤輝雄D, Moseev Dmitry, Salewski Mirko, LHD実験グループ
- Organizer
  日本物理学会年会
- Data Source
  KAKENHI-PROJECT-19KK0073
[Presentation] 協同トムソン散乱計測における高速イオンの速度空間と計測スペクトルの関係2019
- Author(s)
  西浦正樹，釼持尚輝，奴賀秀男，關良輔，久保伸，田中謙治，下妻隆，斉藤輝雄，Moseev Dmitry, Salewski Mirko, LHD実験グループ
- Organizer
  プラズマ・核融合学会
- Data Source
  KAKENHI-PROJECT-19KK0073
[Presentation] Collective Thomson scattering with 77, 154, and 300 GHz sources in LHD2019
- Author(s)
  M. Nishiura, K. Tanaka, S. Kubo, T. Saito, N. Kenmochi, H. Nuga, R. Seki, T. Shimozuma, Y. Yoshimura, H. Igami, H. Takahashi, T. I. Tsujimura, R. Yanai, Y. Tatematsu, LHD experiment group
- Organizer
  Laser Aided Plasma Diagnostics 2019
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19KK0073
[Presentation] Monte-Carlo Study of Perpendicularly Injected High-Energy Particles using Real Coordinate System in LHD2009
- Author(s)
  R.Seki, Y.Matsumoto, Y.Suzuki, K.Y.Watanabe, et.al.
- Organizer
  17th International International Stellarator/Heliotron Workshop
- Place of Presentation
  Princeton, USA
- Year and Date
  2009-10-14
- Data Source
  KAKENHI-PROJECT-18360445

1. WATANABE Kiyomasa (00249963)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
2. Nishiura Masaki (60360616)

# of Collaborated Projects: 2 results

# of Collaborated Products: 12 results
3. 矢内亮馬 (40824743)

# of Collaborated Projects: 2 results

# of Collaborated Products: 6 results
4. 釼持尚輝 (80781319)

# of Collaborated Projects: 2 results

# of Collaborated Products: 12 results
5. SAKAKIBARA Satoru (90280594)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. OSAKABE Masaki (90280601)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. NAGAOKA Kenichi (20353443)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. SUZUKI Yasuhiro (20397558)

# of Collaborated Projects: 1 results

# of Collaborated Products: 3 results
9. MATSUMOTO Yutaka (40360929)

# of Collaborated Projects: 1 results

# of Collaborated Products: 4 results
10. GOTO Motoshi (00290916)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
11. 藤井恵介 (10637705)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. 奴賀秀男 (10625429)

# of Collaborated Projects: 1 results

# of Collaborated Products: 12 results
13. 武村勇輝 (60705606)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
14. 藤堂泰 (00249971)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
15. Wang Hao (30724760)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
16. 佐藤雅彦 (80455211)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
17. 田中謙治 (50260047)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
18. 井戸毅 (50332185)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
19. 山口裕之 (90797101)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
20. COOPER W.A.

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
21. PUSTOVITOV V.

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
22. 渡邊清政

# of Collaborated Projects: 0 results

# of Collaborated Products: 3 results

Seki Ryosuke 關 良輔

SDEKI Ryouske 関 良輔

Research Projects

Research Products

Co-Researchers

Pressure limits of magnetically confined fusion plasmas determined by microscopic collective dynamics

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Breakthrough of turbulent transport mechanism of self-burning plasma by high energy ion and tubulence analysis

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Experiment study of Interchange MHD instability under the anisotropic pressure distribution

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of advanced millimeter wave diagnostic system for high energy ions in fusion plasmas and control for self-burning plasmas

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Effects of beam pressure on the MHD equilibria and stabilities in high beta helical plasmas

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Degradation of fast-ion confinement depending on the neutral beam power in MHD quiescent LHD plasmas2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Influence of sawtooth oscillations on fast ions in a stellarator2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Estimation of the Tritium Yields in Deuterium Fusion Plasmas Considering the Fast-Ion Velocity Distribution Function2022

Author(s)

Journal Title

DOI

ISSN

Year and Date

Language

Data Source

[Journal Article] Collective Thomson scattering diagnostic with in situ calibration system for velocity space analysis in large helical device2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Collective Thomson scattering with 77, 154, and 300 GHz sources in LHD2020

Author(s)

Journal Title

DOI

NAID

Data Source

[Journal Article] Studies of the fast ion confinement in the Large Helical Device by using neutron measurement and integrated?codes2020

Author(s)

Journal Title

DOI

NAID

Data Source

[Journal Article] Monte-Carlo Study Based on Real Coordinates for Perpendicularly Injected High-Energy Ions in the LHD High-Beta Plasma2010

Author(s)

Journal Title

NAID

Data Source

[Journal Article] Particle Orbit Analysis in the Finite Beta Plasma of the Large Helical Device using Real Coordinates2008

Author(s)

Journal Title

NAID

Data Source

Seki Ryosuke 關良輔

SDEKI Ryouske 関良輔

[Presentation] Orbit-following simulation of fast-ion transport and losses due to the Alfvén eigenmode burst in the Large Helical Device2023