Analysis of Turbulence and Structure in toroidal plasma using Personal Computer Cluster

• Project/Area Number: 18360447
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nuclear fusion studies
• Research Institution: National Institute for Fusion Science
• Principal Investigator: FUJISAWA Akihide National Institute for Fusion Science, 大型ヘリカル研究部, 准教授 (60222262)
• Co-Investigator(Kenkyū-buntansha): SHIMIZU Akihiro 核融合科学研究所, 大型ヘリカル研究部, 助教授 (00390633)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥15,760,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥1,560,000); Fiscal Year 2008: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000); Fiscal Year 2007: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2006: ¥9,000,000 (Direct Cost: ¥9,000,000)
• Keywords: 磁場核融合 / プラズマ乱流 / 帯状流 / 重イオンビームプローブ / PCクラスター / 非線形相互作用 / 高エネルギー粒子 / CHS / アルフベンモード / コンピュータクラスター / ウェーブレット解析 / 輸送 / トロイダルプラズマ / MHDモード / 乱流

Research Abstract

パーソナルコンピューターの並列処理を用いた乱流と構造解析法の開発を行い、CHS の重イオンビームプローブデータの解析から、帯状流と背景乱流との結合、帯状磁場の発見、高速粒子とMHD 不安定性の相互作用の結果による振動帯状流の生成の観測などの新しい知見を得た。

Research Products

• [Journal Article] A Review of Zonal Flow Experiments (2009)
  • Author(s): Akihide Fujisawa
  • Journal Title: Nuclear Fusion 49 Pages: 13001-13001
• [Journal Article] Experimental Studies of Zonal Flow and Field in Compact Helical System Plasma (2008)
  • Author(s): A. Fujisawa, et al.
  • Journal Title: Physics of Plasmas 15 Pages: 55906-55906
• [Journal Article] Zonal flow driven by energetic particle during magneto-hydro-dynamic burst in a toroidal plasma (2007)
  • Author(s): S. Ohshima, A. Fujisawa, A. Shimizu, H. Nakano, H. Iguchi, Y. Yoshimura, K. Nagaoka, T. Minami, M. Isobe, S. Nishimura, C. Suzuki, T. Akiyama, C. Takahashi, M. Takeuchi, T. Ito, T. Watari, R. Kumazawa, S-I. Itoh, K. Itoh, K. Matsuoka, S. Okamura
  • Journal Title: Plasma Physics and Controlled Fusion 49 Pages: 1945-1952
• [Journal Article] Reconstruction method of local density fluctuation for heavy ion beam probe measurements (2007)
  • Author(s): H. Nakano, A. Fujisawa, A. Shimizu, S. Ohshima, H. Iguchi, Y. Yoshimura, T. Minami
  • Journal Title: Review of Scientific Instruments 78 Pages: 63502-63502
• [Journal Article] Experimental progress on zonal flowphysics in toroidal plasmas (2007)
  • Author(s): A. Fujisawa, T. Ido, A. Shimizu, S. Okamura, K. Matsuoka,H. Iguchi, Y. Hamada, H. Nakano, S. Ohshima, K. Itoh, K. Hoshino, K. Shinohara, Y. Miura, Y. Nagashima, S.-I. Itoh, M. Shats, H. Xia, J.Q. Dong, L.W. Yan, K.J. Zhao, G.D. Conway, U. Stroth, A.V. Melnikov, L.G. Eliseev, S.E. Lysenko, S.V. Perfilov, C. Hidalgo, G.R. Tynan, C. Holland, P.H. Diamond, G.R. McKee, R.J. Fonck, D.K. Gupta and P.M. Schoch
  • Journal Title: Nuclear Fusion 47
• [Journal Article] Experimental Evidence of a Zonal Magnetic Field in a Toroidal Plasma (2007)
  • Author(s): A. Fujisawa, K. Itoh, A. Shimizu, H. Nakano, S. Ohshima, H. Iguchi, K. Matsuoka, S. Okamura, T. Minami, Y. Yoshimura, K. Nagaoka, K. Ida, K. Toi, C. Takahashi, M. Kojima, S. Nishimura, M. Isobe, C. Suzuki, T. Akiyama, Y. Nagashima, S.-I. Itoh, and P. H. Diamond
  • Journal Title: Physical Review Letters 98 Pages: 165001-165001
• [Journal Article] Evaluation of local magnetic field fluctuation in a toroidal plasma with heavy ion beam probe (2007)
  • Author(s): A. Fujisawa, A. Shimizu, H. Nakano, S. Ohshima
  • Journal Title: Plasma Physics and Controlled Fusion 49 Pages: 845-855
• [Journal Article] Intermittent characteristics in coupling between turbulence and zonal flows (2007)
  • Author(s): A. Fujisawa, A. Shimizu et al.
  • Journal Title: Plasma Phys. Control. Fusion 49 Pages: 211-211
• [Journal Article] Causal Relationship between Zonal Flow and Turbulence in a Toroidal Plasma (2007)
  • Author(s): A. Fujisawa, A. Shimizu, et al.
  • Journal Title: Journal of Physical Society of Japan 76 Pages: 33501-33501
  • NAID: 110006240182
• [Journal Article] Recipe for Fabricating Zeolite Ion Source for Plasma Probing (2007)
  • Author(s): A. Fujisawa, A. Shimizu, H. Nakano, S. Ohshima, H. Iguchi
  • Journal Title: Japanese Journal of Applied Physics 46 Pages: 1710-1710
  • NAID: 10018901461
• [Journal Article] Experimental Evidence of a Zonal Magnetic Field in a Toroidal Plasma (2007)
  • Author(s): A. Fujisawa, et. al.
  • Journal Title: Physical Review Letters 98
  • Peer Reviewed
• [Journal Article] Intermittent Characteristics in Coupling between Turbulence and Zonal Flows (2007)
  • Author(s): A. Fujisawa, et. al.
  • Journal Title: Plasma Physics and Controlled Fusion 49 Pages: 211-217
  • Peer Reviewed
• [Journal Article] Causal Relationship between Zonal Flows and Turbulence in a Toroidal Plasma (2007)
  • Author(s): A. Fujisawa, et. al.
  • Journal Title: Journal of Japanese Physical Society 76
  • NAID: 110006240182
  • Peer Reviewed
• [Journal Article] Causal relationship between zonal flow and turbulence in a toroidal plasma (2007)
  • Author(s): A.Fujisawa et al.
  • Journal Title: Journal of Physics Society of Japan 76・3 Pages: 33501-33501
  • NAID: 110006240182
• [Journal Article] Intermittent characteristics in coupling between turbulence and zonal flows (2007)
  • Author(s): A.Fujisawa et al.
  • Journal Title: Plasma Physics and Controlled Fusion 49・3 Pages: 211-217
• [Journal Article] Observation of internal coherent mode structure using heavy ion beam probe (2006)
  • Author(s): S. Ohshima, A. Fujisawa, A. Shimizu and H. Nakano
  • Journal Title: Review of Science Instruments 77
• [Journal Article] Development of Zeolite Ion Source for Beam Probe Measurements of High Temperature Plasma (2006)
  • Author(s): S. Ohshima, A. Fujisawa, A. Shimizu, H. Nakano
  • Journal Title: Review of Scientific Instruments 77
• [Journal Article] Spectrograph of Electric Field Fluctuation in Toroidal Helical Plasma (2006)
  • Author(s): A. Fujisawa, K. Itoh, A. Shimizu, et al.
  • Journal Title: Plasma Physics and Controlled Fusion 48
• [Journal Article] Properties of turbulence and stationary zonal flow on transport barrier in CHS (2006)
  • Author(s): A Fujisawa, A Shimizu, H Nakano, et al.
  • Journal Title: Plasma Physics and Controlled Fusion 48
• [Journal Article] Turbulence and transport characteristics on a barrier in a toroidal plasma (2006)
  • Author(s): A. Fujisawa, A. Shimizu, H. Nakano, et al.
  • Journal Title: Plasma Physics and Controlled Fusion 48
• [Journal Article] Properties of turbulence and stationary zonal flow on transport barrier in CHS (2006)
  • Author(s): A.Fujisawa et al.
  • Journal Title: Plasma Physics and Controlled Fusion 48・5A
• [Journal Article] Spectograph of electric field fluctuation in toroidal helical plasma (2006)
  • Author(s): A.Fujisawa et al.
  • Journal Title: Plasma Physics and Controlled Fusion 48・4
• [Journal Article] Turbulence and transport characteristics of a barrier in a toroidal plasma (2006)
  • Author(s): A.Fujisawa et al.
  • Journal Title: Plasma Physics and Controlled Fusion 48・4
• [Presentation] Confinement Studies for Future Devices Beyond ITER (2008)
  • Author(s): A. Fujisawa
  • Organizer: 18^<th> International Toki Conference
  • Place of Presentation: Toki Japan
  • Year and Date: 2008-12-10
• [Presentation] Oscillatory Zonal Flows Driven by Interaction between Energetic Ions and CHS Fishbone-like Instability (2008)
  • Author(s): A. Fujisawa
  • Organizer: US-Japan JIFT Workshop on Energetic Particle Physics in Toroidal Plasmas
  • Place of Presentation: Toki, Japan
• [Presentation] Experimental Confinement Studies Beyond ITER (2008)
  • Author(s): A. Fujisawa
  • Organizer: 18th International Toki Conference
  • Place of Presentation: Toki Japan
• [Presentation] Study of Energetic Ion Driven Instability using Heavy Ion Beam Probes on Compact Helical System S. Ohshima (2008)
  • Author(s): A. Fujisawa, A. Shimizu, H. Nakano, H. Nishimura and CHS group
  • Organizer: 50th Annual Meeting of the Division of Plasma Physics
  • Place of Presentation: Dallas, Texas
• [Presentation] Oscillatory Zonal Flows Driven by Interaction between Energetic Ions and CHS Fishbone Instability (2008)
  • Author(s): A. Fujisawa, S. Ohshima A. Shimizu, H. Nakano, H. Iguchi, K. Itoh, S. Okamura, K. Matsuoka, T. Minami, Y. Yoshimura, K. Nagaoka, C. Takahashi, S. Nishimura, M. Isobe, C. Suzuki, T Akiyama, CHS group
  • Organizer: 22nd IAEA Fusion Energy Conference
  • Place of Presentation: Geneva, Switzerland
• [Presentation] Turbulence Measurements and Discovery of Zonal Magnetic Field using HIBPs in CHS (2008)
  • Author(s): Akihide Fujisawa, Kimitaka Itoh, Akihiro Shimizu, Haruhisa Nakano, Shinsuke Ohshima, Harukazu Iguchi, Shoichi Okamura, Keisuke Matsuoka, CHS group
  • Organizer: International Congress on Plasma Physics
  • Place of Presentation: Fukuoka Japan
• [Presentation] Experimental Achievements in Plasma Confinement and Turbulence (2008)
  • Author(s): A. Fujisawa
  • Organizer: 2nd International ITER Summer School 2008
  • Place of Presentation: Fukuoka Japan
• [Presentation] HIBP を用いた複数の高速イオン励起不安定性の内部構造解明 (2008)
  • Author(s): 大島慎介、藤澤彰英、清水昭博、中野治久、CHS グループ
  • Place of Presentation: 近畿大学(東大阪市)
• [Presentation] トロイダルプラズマにおける帯状磁場構造の発見 (2008)
  • Author(s): 藤澤彰英、伊藤公孝、清水昭博、中野治久, 大島慎介, 吉村泰夫、井口春和、岡村昇一, 松岡啓介、CHSグループ
  • Organizer: 日本物理学会第63回年次大会
  • Place of Presentation: 近畿大学(東大阪市)
• [Presentation] Experimental Studies of Zonal Flow and Field in CHS PIasma (2007)
  • Author(s): A. Fujisawa
  • Organizer: American Physical Society Meeting
  • Place of Presentation: Orlando,Florida
  • Year and Date: 2007-11-14
• [Presentation] CHS における高速イオン励起不安定性時の内部構造発展の観測 (2007)
  • Author(s): 大島慎介、藤澤彰英、清水昭博、中野治久、CHS グループ
  • Organizer: プラズマ・核融合学会 第24回年会
  • Place of Presentation: イーグレひめじ(姫路市)
• [Presentation] CHS プラズマの放射崩壊時におけるHIBP を用いた揺動解析 (2007)
  • Author(s): 中野 治久、藤澤 彰英、清水昭博、大島 慎介、吉村 泰夫、 南 貴司、 鈴木 千尋、CHSグループ
  • Organizer: プラズマ・核融合学会 第24回年会
  • Place of Presentation: イーグレひめじ(姫路市)
• [Presentation] Experimental Studies of Zonal Flow and Field in CHS Plasma (2007)
  • Author(s): A. Fujisawa, K. Itoh, A. Shimizu, H. Nakano, S. Ohshima, H. Iguchi, K. Matsuoka, S. Okamura, T. Minami, Y. Yoshimura, K. Nagaoka,K. Ida, K. Toi, C. Takahashi, M. Kojima, S. Nishimura, M. Isobe, C. Suzuki, T Akiyama, T. Ido, Y. Nagashima, S.-I. Itoh, and P. H. Diamond
  • Organizer: 49th Annual Meeting of the Division of Plasma Physics
  • Place of Presentation: Orlando, Florida
• [Presentation] Zonal Flows and Fields Generated by Turbulence in CHS (2007)
  • Author(s): A. Fujisawa, K. Itoh, A. Shimizu, H. Nakano, S. Ohshima, K. Matsuoka, S. Okamuara, CHS-group
  • Organizer: 17th International Toki Conference
  • Place of Presentation: Toki, Japan
• [Presentation] Zonal Flow Driven By High-Energy Particle during Nonlinear MHD (2007)
  • Author(s): S. Ohshima, A.Fujisawa, A.Shimizu, H.Nakano and CHS group
  • Organizer: 11th IAEA Technical Meeting on H-mode Physics and Transport Barriers
  • Place of Presentation: Tsukuba, Japan
• [Presentation] 帯状流とダイナモに関するプラズマ研究 (2007)
  • Author(s): 藤澤彰英
  • Organizer: 日本天文学会2007年秋期年会
  • Place of Presentation: 岐阜大学(岐阜市)
• [Presentation] 帯状流と乱流の間欠的結合について (2007)
  • Author(s): 藤澤彰英、清水昭博、中野治久, 大島慎介, 井口春和, 吉村泰夫、永岡賢一, 南貴司、秋山毅志, 磯部光孝, 鈴木千尋, 西村伸, 岡村昇一, 松岡啓介、伊藤公孝、CHSグループ
  • Organizer: 第62回日本物理学会年次大会
  • Place of Presentation: 北海道大学(札幌市)
• [Presentation] CHSバーストのHIBPによる時空間構造観測 (2007)
  • Author(s): 大島慎介、藤澤彰英、清水昭博、中野治久、CHS グループ
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 鹿児島大学(鹿児島市)
• [Presentation] CHSにおける密度上昇時のHIBPによるプラズマ観測 (2007)
  • Author(s): 中野 治久、 藤澤 彰英、 清水 昭博、 大島慎介、 井口 春和、吉村 泰夫、 南 貴司、 CHSグループ
  • Organizer: 日本物理学会第62回春期大会
  • Place of Presentation: 鹿児島大学(鹿児島市)
• [Presentation] CHS における帯状流とGAMのHIBP 観測 (2007)
  • Author(s): 藤澤彰英、清水昭博、中野治久, 大島慎介, 井口春和, 吉村泰夫、永岡賢一, 南貴司、秋山毅志,磯部光孝, 鈴木千尋, 西村伸, 岡村昇一,松岡啓介、伊藤公孝、CHSグループ
  • Organizer: 日本物理学会第62回春期大会
  • Place of Presentation: 鹿児島大学(鹿児島市)
• [Presentation] Experimental Progress on Zonal Flow Physics (2006)
  • Author(s): A. Fujisawa, T. Ido, A. Shimizu, S. Okamura, K. Matsuoka, Y. Hamada, K. Hoshino, Y. Nagashima, K. Shinohara, H. Nakano, S. Ohshima, Y. Miura, K. Itoh, S. -I. Itoh, M. Shats, H. Xia, J. Q. Dong, L. W. Yan, K. J. Zhao, G. D. Conway, *U. Stroth, A. Melnikov, L.G. Eliseev, S.E. Lysenko and S.V. Perfilov, C. Hidalgo, G. R. Tynan, *G. R. Mckee, C. Holland, *R. J. Fonck, *D. K. Gupta, P. H. Diamond
  • Organizer: 21st IAEA Fusion Energy Conference
  • Place of Presentation: Chengdu, China
• [Presentation] Reconstruction Method of Local Density Fluctuations in Measurements Using Heavy Ion Beam Probe in CHS (2006)
  • Author(s): H. Nakano, A. Fujisawa, A. Shimizu, S. Ohshima, H. Iguchi, T. Minami, Y. Yoshimura, K. Nagaoka, K. Matsuoka, S. Okamura, CHS Group
  • Organizer: 3rd Japan-Korea Seminar on Advanced Diagnostics for Steady-State Fusion Plasma
  • Place of Presentation: Miyagi Japan
• [Presentation] Experimental Observations of Zonal Flows and Turbulence in a Toroidal Plasma (2006)
  • Author(s): A. Fujisawa,A. Shimizu, H. Nakano, S. Ohshima, K. Itoh, Y. Nagashima1, S.-I. Itoh1, H. Iguchi, Y. Yoshimura, T. Minami, K. Nagaoka, C. Takahashi, M. Kojima, S. Nishimura, M. Isobe, C. Suzuki, T Akiyama, T. Ido, K. Matsuoka, and S. Okamura
  • Organizer: 13th International Congress on Plasma Physics
  • Place of Presentation: Kiev Uklaine
• [Presentation] トロイダルプラズマでの乱流と帯状流の実験研究 (2006)
  • Author(s): 藤澤彰英
  • Organizer: 日本地球惑星科学連合2006年大会
  • Place of Presentation: 幕張メッセ国際会議場(千葉市)
• [Presentation] Observation of internal coherent mode structure using HIBP S (2006)
  • Author(s): Ohshima, A.Fujisawa, A.Shimizu, H.Nakano
  • Organizer: 16th Topical Conference on High-Temperature Plasma Diagnostics
  • Place of Presentation: Williamsburg, Virginia
• [Book] Experimental Achievements on Plasma Confinement and Turbulence (2009)
  • Author(s): A. Fujisawa
  • Publisher: American Institute of Physics
• [Book] 2^<nd> ITER International Summer School (2009)
  • Author(s): A. Fujisawa
  • Total Pages: 243
  • Publisher: American Institute of Physics