Basic Information

Faculty

• 工学部

Academic Degree

• 修士（理学）(東京都立大学)
• 博士（理学）(東京都立大学)

ID,URL

• ORCID ID

  0000-0002-5323-8448

• J-Global ID

  201501002371926185

Website(s) (URL(s))

• http://www.em-energy.energy.kyoto-u.ac.jp/ishizawa/

researchmap URL

• https://researchmap.jp/7000013550

Research

Research Topics, Overview of the research

• Research Topics

  Numerical simulations of nonlinear phenomena in fusion plasmas with focusing on electromagnetic instabilities and turbulence

• Overview of the research

  Magnetically confined plasmas exhibit strong nonlinearity. This nonlinear phenomena are studied by means of numerical simulations. Aiming to understand the degradation of plasma confinement, numerical simulations of electromagnetic instabilities and turbulence are carried out with the point of view from self-organization and structure formation of magnetized plasmas by utilizing super computers.

Research Areas

• Energy, Basic plasma science
• Energy, Nuclear fusion

Papers

• Turbulence Transition in Magnetically Confined Hydrogen and Deuterium Plasmas

  T. Kinoshita; K. Tanaka; A. Ishizawa; H. Sakai; M. Nunami; Y. Ohtani; H. Yamada; M. Sato; M. Nakata; T. Tokuzawa; R. Yasuhara; Y. Takemura; I. Yamada; H. Funaba; K. Ida; M. Yoshinuma; T. Tsujimura; R. Seki; K. Ichiguchi; C. A. Michael

  Physical Review Letters, 07 Jun. 2024, Peer-reviewed

  
• Turbulent particle pinch in gyrokinetic flux-driven ITG/TEM turbulence

  Kenji Imadera; Yasuaki Kishimoto; Akihiro Ishizawa

  Nuclear Fusion, 31 May 2024, Peer-reviewed, Last author

  
• Plasma beta dependence of turbulent transport suggesting an advantage of weak magnetic shear from local and global gyrokinetic simulations

  Akihiro Ishizawa; Yasuaki Kishimoto; Kenji Imadera; Yuji Nakamura; Shinya Maeyama

  Nuclear Fusion, 11 Apr. 2024, Peer-reviewed, Lead author, Corresponding author

  
• Effects of the resonance modification by electron cyclotron current drive on the linear and nonlinear dynamics of energetic particle driven magnetohydrodynamics modes in Heliotron J

  P. Adulsiriswad; Y. Todo; S. Yamamoto; S. Kado; S. Kobayashi; S. Ohshima; H. Okada; T. Minami; Y. Nakamura; A. Ishizawa; S. Konoshima; T. Mizuuchi; K. Nagasaki

  Nuclear Fusion, 01 Jan. 2024

  
• Impact of multifold magnetic structure on spectroscopy analysis in Heliotron J based on EMC3-EIRENE simulation

  F. Cai; S. Kado; G. Kawamura; C. Feng; R. Matoike; A. Miyashita; S. Ohshima; T. Minami; S. Inagaki; F. Kin; S. Kobayashi; A. Ishizawa; Y. Nakamura; H. Okada; S. Konoshima; T. Mizuuchi; Y. Feng; H. Frerichs; K. Nagasaki

  Contributions to Plasma Physics, Jan. 2024

  
• Plasma beta dependence of ion temperature gradient driven turbulence influenced by Shafranov shift

  M Niiro; A Ishizawa; Y Nakamura; S Maeyama; T-H Watanabe

  Plasma Physics and Controlled Fusion, 21 Apr. 2023, Peer-reviewed

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• Characteristics of constrained turbulent transport in flux-driven toroidal plasmas

  Y. Kishimoto; K. Imadera; A. Ishizawa; W. Wang; J. Q. Li

  Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 02 Jan. 2023, Peer-reviewed

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• Simulation Method and Code Development for Non-Axisymmetric Eddy Currents on Vacuum Vessels

  Yushiro YAMASHITA; Yuji NAKAMURA; Akihiro ISHIZAWA; Kiyomasa WATANABE

  Plasma and Fusion Research, Nov. 2022, Peer-reviewed

  
• Spatially resolved measurement of helium atom emission line spectrum in scrape-off layer of Heliotron J by near-infrared Stokes spectropolarimetry

  Tomoki Chatani; Taiichi Shikama; Yohei Ueno; Shinichiro Kado; Hayato Kawazome; Takashi Minami; Ryota Matoike; Minato Murakumo; Shinji Kobayashi; Shinsuke Ohshima; Akihiro Iwata; Tetsutaro Oishi; Akihiro Ishizawa; Yuji Nakamura; Hiroyuki Okada; Shigeru Konoshima; Tohru Mizuuchi; Kazunobu Nagasaki; Masahiro Hasuo

  Scientific Reports, 23 Sep. 2022

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• Multi-scale turbulence simulation suggesting improvement of electron heated plasma confinement

  Shinya Maeyama; Tomo-Hiko Watanabe; Motoki Nakata; Masanori Nunami; Yuuichi Asahi; Akihiro Ishizawa

  Nature Communications, Dec. 2022, Peer-reviewed, Last author

  
• Two types of helical core equilibrium states in tokamak plasmas

  Shumpei Kawagoe; Akihiro Ishizawa; Nobuyuki Aiba; Yuji Nakamura

  Plasma Physics and Controlled Fusion, 20 Jul. 2022, Corresponding author

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• Global saturation physics of ion temperature gradient turbulence in finite normalized pressure tokamaks

  Hideaki Masui; Akihiro Ishizawa; Kenji Imadera; Yasuaki Kishimoto; Yuji Nakamura

  Nuclear Fusion, 12 Apr. 2022

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• Role of pre-ionization in NBI plasma start-up of Heliotron J using non-resonant microwave heating

  S. Kobayashi; K. Nagasaki; K. Hada; T. Stange; H. Okada; T. Minami; S. Kado; S. Ohshima; K. Tokuhara; Y. Nakamura; A. Ishizawa; Y. Suzuki; M. Osakabe; T. Murase; S. Konoshima; T. Mizuuchi

  Nuclear Fusion, 01 Nov. 2021

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• Numerical investigation into the peripheral energetic-particle-driven MHD modes in Heliotron J with free boundary hybrid simulation

  P. Adulsiriswad; Y. Todo; S. Kado; S. Yamamoto; S. Kobayashi; S. Ohshima; H. Okada; T. Minami; Y. Nakamura; A. Ishizawa; S. Konoshima; T. Mizuuchi; K. Nagasaki

  Nuclear Fusion, Nov. 2021

  
• Multi-scale interactions between turbulence and magnetohydrodynamic instability driven by energetic particles

  Akihiro Ishizawa; Kenji Imadera; Yuji Nakamura; Yasuaki Kishimoto

  Nuclear Fusion, 19 Aug. 2021, Peer-reviewed, Lead author, Corresponding author

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• Kinetic-ballooning-mode turbulence in low-average-magnetic-shear equilibria

  I.J. McKinney; M.J. Pueschel; B.J. Faber; C.C. Hegna; A. Ishizawa; P.W. Terry

  Journal of Plasma Physics, Jun. 2021, Peer-reviewed

  
• Multi-scale interactions of microtearing turbulence in the tokamak pedestal

  M.J. Pueschel; D.R. Hatch; M. Kotschenreuther; A. Ishizawa; G. Merlo

  Nuclear Fusion, 01 Dec. 2020, Peer-reviewed

  
• Structure of the Electron Distribution Function and Induced Beam Instability in Collisionless Magnetic Reconnection with a Strong Guide Field

  Kazuya SHIMOMURA; Tomohiko WATANABE; Shinya MAEYAMA; Akihiro ISHIZAWA

  Plasma and Fusion Research, 19 Nov. 2020, Peer-reviewed

  
• Magnetohydrodynamic hybrid simulation of Alfvén eigenmodes in Heliotron J, a low shear helical axis stellarator/heliotron

  P. Adulsiriswad; Y. Todo; S. Yamamoto; S. Kado; S. Kobayashi; S. Ohshima; H. Okada; T. Minami; Y. Nakamura; A. Ishizawa; S. Konoshima; T. Mizuuchi; K. Nagasaki

  Nuclear Fusion, 01 Sep. 2020, Peer-reviewed

  
• Influence of plasma boundary shape on helical core/long-lived mode in tokamak plasmas

  Y. Nakamura; A. Ishizawa; Y. Ishida

  Physics of Plasmas, Sep. 2020, Peer-reviewed

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• Global gyrokinetic nonlinear simulations of kinetic infernal modes in reversed shear tokamaks

  Y. Ishida; A. Ishizawa; K. Imadera; Y. Kishimoto; Y. Nakamura

  Physics of Plasmas, Sep. 2020, Peer-reviewed

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• Measurement of Radial Correlation Lengths of Electron Density Fluctuations in Heliotron J Using O-Mode Reflectometry

  Niels SMITH; Kazunobu NAGASAKI; Josefine H.E. PROLL; Hiroyuki OKADA; Takashi MINAMI; Shin-ichiro KADO; Shinji KOBAYASHI; Shinsuke OHSHIMA; Shigeru KONOSHIMA; Tohru MIZUUCHI; Yuji NAKAMURA; Akihiro ISHIZAWA; Tsuyoshi TOMITA; Takeshi FUKUDA; Yasuto KONDO

  Plasma and Fusion Research, 06 Aug. 2020

  
• Measurement of Electron Temperature Profile and Fluctuation with ECE Radiometer System in Heliotron J

  Maoyuan LUO; Kazunobu NAGASAKI; Gavin WEIR; Hiroyuki OKADA; Takashi MINAMI; Shinichiro KADO; Shinji KOBAYASHI; Satoshi YAMAMOTO; Shinsuke OHSHIMA; Tohru MIZUUCHI; Shigeru KONOSHIMA; Yuji NAKAMURA; Akihiro ISHIZAWA

  Plasma and Fusion Research, 02 Jul. 2020

  
• Effect of ECH/ECCD on energetic-particle-driven MHD modes in helical plasmas

  S. Yamamoto; K. Nagasaki; K. Nagaoka; J. Varela; Á. Cappa; E. Ascasíbar; F. Castejón; J.M. Fontdecaba; J.M. García-Regaña; Á. González-Jerez; K. Ida; A. Ishizawa; M. Isobe; S. Kado; S. Kobayashi; M. Liniers; D. López-Bruna; N. Marushchenko; F. Medina; A. Melnikov; T. Minami; T. Mizuuchi; Y. Nakamura; M. Ochando; K. Ogawa; S. Ohshima; H. Okada; M. Osakabe; M. Sanders; J.L. Velasco; G. M. Weir; M. Yoshinuma

  Nuclear Fusion, 01 Jun. 2020, Peer-reviewed

  
• Global gyrokinetic simulation of turbulence driven by kinetic ballooning mode

  A. Ishizawa; K. Imadera; Y. Nakamura; Y. Kishimoto

  Physics of Plasmas, 01 Aug. 2019, Peer-reviewed

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• Persistence of Ion Temperature Gradient Turbulent Transport at Finite Normalized Pressure

  A. Ishizawa; D. Urano; Y. Nakamura; S. Maeyama; T.-H. Watanabe

  Physical Review Letters, 10 Jul. 2019, Peer-reviewed, Lead author

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• Measurement of stray millimeter-wave radiation from a 70-GHz ECH/ECCD system in Heliotron J

  K. Nagasaki; S. Watanabe; K. Sakamoto; A. Isayama; H. Okada; T. Minami; S. Kado; S. Kobayashi; S. Yamamoto; S. Ohshima; S. Konoshima; T. Mizuuchi; Y. Nakamura; A. Ishizawa; S. Kubo; H. Igami; G. Weir; N. Marushchenko

  Fusion Engineering and Design, Jul. 2019, Peer-reviewed

  
• Multi-scale interactions between turbulence and magnetic islands and parity mixture-a review

  A. Ishizawa; Y. Kishimoto; Y. Nakamura

  Plasma Physics and Controlled Fusion, 26 Mar. 2019, Peer-reviewed

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• Transport simulation for helical plasmas by use of gyrokinetic transport model

  Shinichiro Toda; Motoki Nakata; Masanori Nunami; Akihiro Ishizawa; Tomo Hiko Watanabe; Hideo Sugama

  Plasma and Fusion Research, 01 Jan. 2019

  
• Observation of a beam-driven low-frequency mode in Heliotron J

  L.G. Zang; S. Yamamoto; D.A. Spong; K. Nagasaki; S. Ohshima; S. Kobayashi; T. Minami; X.X. Lu; N. Nishino; S. Kado; P. Adulsiriswad; H. Okada; N. Kenmochi; S. Inagaki; J.X. Zhu; G.M. Weir; T. Mizuuchi; S. Konoshima; A. Ishizawa; D.L. Yu; Z.B. Shi; Yi Liu; L.W. Yan; J.Q. Li; Q.W. Yang; M. Xu; X.R. Duan; Yong Liu

  Nuclear Fusion, Jan. 2019, Peer-reviewed

  
• Modeling of turbulent particle and heat transport in helical plasmas based on gyrokinetic analysis

  S. Toda; M. Nakata; M. Nunami; A. Ishizawa; T.-H. Watanabe; H. Sugama

  Physics of Plasmas, Jan. 2019, Peer-reviewed

  
• Near-infrared Zeeman spectroscopy for the spatially resolved measurement of helium emission spectra in Heliotron J

  T. Shikama; S. Kado; H. Okada; S. Yamamoto; L. Matsuoka; T. Mizuuchi; T. Minami; S. Kobayashi; K. Nagasaki; S. Oshima; Y. Nakamura; A. Ishizawa; S. Konoshim; M. Hasuo

  Plasma Physics and Controlled Fusion, Nov. 2018, Peer-reviewed

  
• Application of portable near-infrared spectrometer to Heliotron J plasma diagnostics

  S. Kado; A. Iwata; T. Kanazawa; H. Okada; S. Yamamoto; G. Motojima; H. Okazaki; T. Minami; S. Kobayashi; K. Nagasaki; S. Ohshima; Y. Nakamura; A. Ishizawa; S. Konoshima; T. Mizuuchi

  Review of Scientific Instruments, Oct. 2018, Peer-reviewed

  
• Simulation studies on temperature profile stiffness in ITG turbulent transport of helical plasmas for flux-matching technique

  Masanori Nunami; Motoki Nakata; Shinichiro Toda; Akihiro Ishizawa; Ryutaro Kanno; Hideo Sugama

  Physics of Plasmas, Jul. 2018, Peer-reviewed

  
• Poloidal Flow Velocity Measurement in High-Density NBI Plasmas of Heliotron J

  Lu, XX; Kobayashi, S; Tanohira, S; Ida, K; Nishimura, S; Narushima, Y; Nagasaki, K; Kado, S; Okada, H; Minami, T; Ohshima, S; Yamamoto, S; Yonemura, Y; Haji, N; Watanabe, S; Okazaki, H; Kanazawa, T; Adulsiriswad, P; Ishizawa, A; Nakamura, Y; Konoshima, S; Mizuuchi, T

  Plasma and Fusion Research, Jun. 2018, Peer-reviewed

  
• Suppression of fast-ion-driven MHD instabilities by ECH/ECCD on Heliotron J

  S. Yamamoto; K. Nagasaki; S. Kobayashi; K. Nagaoka; A. Cappa; H. Okada; T. Minami; S. Kado; S. Ohshima; S. Konoshima; Y. Nakamura; A. Ishizawa; G. M. Weir; N. Kenmochi; Y. Ohtani; X. Lu; Y. Tawada; D. Kokubu; T. Mizuuchi

  NUCLEAR FUSION, Dec. 2017, Peer-reviewed

  
• Suppression of Ion-Scale Microtearing Modes by Electron-Scale Turbulence via Cross-Scale Nonlinear Interactions in Tokamak Plasmas

  S. Maeyama; T. H. Watanabe; A. Ishizawa

  Physical Review Letters, 09 Nov. 2017, Peer-reviewed

  
• Suppression of Ion-Scale Microtearing Modes by Electron-Scale Turbulence via Cross-Scale Nonlinear Interactions in Tokamak Plasmas

  S. Maeyama; T. -H. Watanabe; A. Ishizawa

  PHYSICAL REVIEW LETTERS, Nov. 2017, Peer-reviewed

  
• Nonlinear parity mixtures controlling the propagation of interchange modes

  M. Sato; A. Ishizawa

  PHYSICS OF PLASMAS, Aug. 2017, Peer-reviewed

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• Multi-machine analysis of turbulent transport in helical systems via gyrokinetic simulation

  A. Ishizawa; Y. Kishimoto; T. -H. Watanabe; H. Sugama; K. Tanaka; S. Satake; S. Kobayashi; K. Nagasaki; Y. Nakamura

  NUCLEAR FUSION, Jun. 2017, Peer-reviewed

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• Cross-scale interactions between turbulence driven by electron and ion temperature gradients via sub-ion-scale structures

  S. Maeyama; T. H. Watanabe; Y. Idomura; M. Nakata; A. Ishizawa; M. Nunami

  Nuclear Fusion, 04 May 2017, Peer-reviewed

  
• A Reduced Transport Model for Ion Heat Diffusivity by Gyro-Kinetic Analysis with Kinetic Electrons in Helical Plasmas

  Shinichiro TODA; Motoki NAKATA; Masanori NUNAMI; Akihiro ISHIZAWA; Tomo-Hiko WATANABE; Hideo SUGAMA

  Plasma and Fusion Research, 2017, Peer-reviewed

  
• Development of beam emission spectroscopy for turbulence transport study in Heliotron J

  S. Kobayashi; S. Ohshima; H. Matsuda; X. X. Lu; D. Kokubu; K. Ida; T. Kobayashi; M. Yoshinuma; S. Kado; T. Oishi; K. Nagasaki; H. Okada; T. Minami; S. Yamamoto; Y. Nakamura; A. Ishizawa; N. Kenmochi; Y. Otani; S. Konoshima; T. Mizuuchi

  REVIEW OF SCIENTIFIC INSTRUMENTS, Nov. 2016, Peer-reviewed

  
• Benchmark of Electromagnetic Gyrokinetic Codes in High Performance Fusion Plasma

  Shinya Maeyama; Tomo-Hiko Watanabe; Hauke Doerk; Motoki Nakata; Akihiro Ishizawa

  PLASMA AND FUSION RESEARCH, 2016, Peer-reviewed

  
• Improved strong scaling of a spectral/finite difference gyrokinetic code for multi-scale plasma turbulence

  Shinya Maeyama; Tomohiko Watanabe; Yasuhiro Idomura; Motoki Nakata; Masanori Nunami; Akihiro Ishizawa

  PARALLEL COMPUTING, Nov. 2015, Peer-reviewed

  
• Overview of gyrokinetic studies of finite-beta microturbulence

  P. W. Terry; D. Carmody; H. Doerk; W. Guttenfelder; D. R. Hatch; C. C. Hegna; A. Ishizawa; F. Jenko; W. M. Nevins; I. Predebon; M. J. Pueschel; J. S. Sarff; G. G. Whelan

  NUCLEAR FUSION, Oct. 2015, Peer-reviewed

  
• Cross-Scale Interactions between Electron and Ion Scale Turbulence in a Tokamak Plasma

  S. Maeyama; Y. Idomura; T. -H. Watanabe; M. Nakata; M. Yagi; N. Miyato; A. Ishizawa; M. Nunami

  PHYSICAL REVIEW LETTERS, Jun. 2015, Peer-reviewed

  
• Turbulent transport of heat and particles in a high ion temperature discharge of the Large Helical Device

  A. Ishizawa; T. -H. Watanabe; H. Sugama; M. Nunami; K. Tanaka; S. Maeyama; N. Nakajima

  NUCLEAR FUSION, Apr. 2015, Peer-reviewed

  
• Electromagnetic gyrokinetic simulation of turbulence in torus plasmas

  A. Ishizawa; S. Maeyama; T. -H. Watanabe; H. Sugama; N. Nakajima

  JOURNAL OF PLASMA PHYSICS, Apr. 2015, Peer-reviewed

  
• Flux tube train model for local turbulence simulation of toroidal plasmas

  T. -H. Watanabe; H. Sugama; A. Ishizawa; M. Nunami

  PHYSICS OF PLASMAS, Feb. 2015, Peer-reviewed

  
• Three-Dimensional Numerical Analysis of Ion Diamagnetic Effects on Interchange Mode in Heliotron Plasmas

  NICOLAS Timothee; ICHIGUCHI Katsuji; SATO Masahiko; TODO Yasushi; SUZUKI Yasuhiro; ISHIZAWA Akihiro; SAKAKIBARA Satoru

  Plasma and Fusion Research, 2015

  
• Nonlinear Entropy Transfer in ETG-TEM Turbulence via TEM Driven Zonal Flows

  Yuuichi ASAHI; Akihiro ISHIZAWA; Tomohiko WATANABE; Hideo SUGAMA; Hiroaki TSUTSUI; Shunji TSUJI-IIO

  Plasma and Fusion Research, 2015, Peer-reviewed

  
• Comparison between kinetic-ballooning-mode-driven turbulence and ion-temperature-gradient-driven turbulence

  S. Maeyama; A. Ishizawa; T. -H. Watanabe; M. Nakata; N. Miyato; M. Yagi; Y. Idomura

  PHYSICS OF PLASMAS, May 2014, Peer-reviewed

  
• Regulation of electron temperature gradient turbulence by zonal flows driven by trapped electron modes

  Y. Asahi; A. Ishizawa; T. -H. Watanabe; H. Tsutsui; S. Tsuji-Iio

  PHYSICS OF PLASMAS, May 2014, Peer-reviewed

  
• Electromagnetic gyrokinetic turbulence in finite-beta helical plasmas

  A. Ishizawa; T.-H. Watanabe; H. Sugama; S. Maeyama; N. Nakajima

  PHYSICS OF PLASMAS, May 2014, Peer-reviewed, Invited

  
• Exploring phase space turbulence in magnetic fusion plasmas

  T-H Watanabe; Y. Idomura; S. Maeyama; M. Nakata; H. Sugama; M. Nunami; A. Ishizawa

  25TH IUPAP CONFERENCE ON COMPUTATIONAL PHYSICS (CCP2013), 2014, Peer-reviewed

  
• How to apply a turbulent transport model based on a gyrokinetic simulation for the ion temperature gradient mode in helical plasmas

  S. Toda; M. Nunami; A. Ishizawa; T-H Watanabe; H. Sugama

  JOINT VARENNA-LAUSANNE INTERNATIONAL WORKSHOP 2014, 2014, Peer-reviewed

  
• Kinetic ballooning mode turbulence simulation based on electromagnetic gyrokinetics

  Shinya Maeyama; Akihiro Ishizawa; Tomohiko Watanabe; Motoki Nakata; Naoaki Miyato; Yasuhiro Idomura

  Plasma and Fusion Research, 2014, Peer-reviewed

  
• Magnetic island evolution in the presence of ion-temperature gradient-driven turbulence

  A. Ishizawa; F. L. Waelbroeck

  PHYSICS OF PLASMAS, Dec. 2013, Peer-reviewed

  
• Numerical techniques for parallel dynamics in electromagnetic gyrokinetic Vlasov simulations

  S. Maeyama; A. Ishizawa; T. -H. Watanabe; N. Nakajima; S. Tsuji-Iio; H. Tsutsui

  COMPUTER PHYSICS COMMUNICATIONS, Nov. 2013, Peer-reviewed

  
• Reversible collisionless magnetic reconnection

  A. Ishizawa; T. H. Watanabe

  Physics of Plasmas, Oct. 2013, Peer-reviewed

  
• Computation-communication overlap techniques for parallel spectral calculations in gyrokinetic Vlasov simulations

  S. Maeyama; T.-H. Watanabe; Y. Idomura; M. Nakata; M. Nunami; A. Ishizawa

  Plasma and Fusion Research, 28 Aug. 2013, Peer-reviewed

  
• Gyrokinetic turbulence simulations of high-beta tokamak and helical plasmas with full-kinetic and hybrid models

  A. Ishizawa; S. Maeyama; T. -H. Watanabe; H. Sugama; N. Nakajima

  NUCLEAR FUSION, May 2013, Peer-reviewed

  
• Turbulence Spectra, Transport, and E×B Flows in Helical Plasmas

  T.-H. Watanabe; M. Nunami; H. Sugama; S. Satake; S. Matsuoka; A. Ishizawa; S. Maeyama; K. Tanaka

  Proceedings of the 24th IAEA Fusion Energy Conference, Mar. 2013, Peer-reviewed

  
• A hybrid method of semi-Lagrangian and additive semi-implicit Runge-Kutta schemes for gyrokinetic Vlasov simulations

  S. Maeyama; A. Ishizawa; T. -H. Watanabe; N. Nakajima; S. Tsuji-Iio; H. Tsutsui

  COMPUTER PHYSICS COMMUNICATIONS, Sep. 2012, Peer-reviewed

  
• Magnetic island evolution in hot ion plasmas

  A. Ishizawa; F. L. Waelbroeck; R. Fitzpatrick; W. Horton; N. Nakajima

  PHYSICS OF PLASMAS, Jul. 2012, Peer-reviewed

  
• Role of the pressure force in the explosive dynamics of magnetic islands in double tearing modes

  M. Janvier; A. Ishizawa; J. Li; Y. Kishimoto

  PHYSICS OF PLASMAS, Oct. 2011, Peer-reviewed

  
• A numerical method for parallel particle motions in gyrokinetic Vlasov simulations

  Shinya Maeyama; Akihiro Ishizawa; Tomo-Hiko Watanabe; Noriyoshi Nakajima; Shunji Tsuji-Iio; Hiroaki Tsutsui

  Plasma and Fusion Research, 2011, Peer-reviewed

  
• Gyrokinetic simulations of slab ion temperature gradient turbulence with kinetic electrons

  Akihiro Ishizawa; Tomo-Hiko Watanabe; Noriyoshi Nakajima

  Plasma and Fusion Research, 2011, Peer-reviewed

  
• Ion-temperature gradient modes affected by helical magnetic field of magnetic islands

  A. Ishizawa; P. H. Diamond

  PHYSICS OF PLASMAS, Jul. 2010, Peer-reviewed

  
• Turbulence driven magnetic reconnection causing long-wavelength magnetic islands

  A. Ishizawa; N. Nakajima

  PHYSICS OF PLASMAS, Jul. 2010, Peer-reviewed

  
• Effects of time-varying E x B flow on slab ion-temperature-gradient turbulence

  S. Maeyama; A. Ishizawa; T. -H. Watanabe; M. M. Skoric; N. Nakajima; S. Tsuji-lio; H. Tsutsui

  PHYSICS OF PLASMAS, Jun. 2010, Peer-reviewed

  
• Propagation of magnetic island due to self-induced zonal flow

  K. Uzawa; A. Ishizawa; N. Nakajima

  PHYSICS OF PLASMAS, Apr. 2010, Peer-reviewed

  
• Intrinsic Rotation of a Magnetic Island with Finite Width

  Ken UZAWA; Akihiro ISHIZAWA; Noriyoshi NAKAJIMA

  Plasma Fusion Research, 2010, Peer-reviewed

  
• Thermal transport due to turbulence including magnetic fluctuation in externally heated plasma

  A. Ishizawa; N. Nakajima

  NUCLEAR FUSION, May 2009, Peer-reviewed

  
• Effect of zonal flow caused by microturbulence on the double tearing mode

  A. Ishizawa; N. Nakajima

  PHYSICS OF PLASMAS, Aug. 2008, Peer-reviewed

  
• Simulation science for fusion plasmas

  S. Sudo; M. M. Skoric; T-H. Watanabe; Y. Todo; A. Ishizawa; H. Miura; R. Ishizaki; A. Ito; H. Ohtani; S. Usami; H. Nakamura; Atsushi Ito; S. Ishiguro; Y. Tomita; A. Takayama; M. Sato; T. Yamamoto; M. Den; H. Sakagami; R. Horiuchi; S. Okamura; N. Nakajima

  24TH SUMMER SCHOOL AND INTERNATIONAL SYMPOSIUM ON THE PHYSICS OF IONIZED GASES, 2008, Peer-reviewed

  
• Multi-scale interactions among micro-turbulence, macro-MHD, and zonal flow

  Akhiro Ishizawa; Noriyoshi Nakajima

  THEORY OF FUSION PLASMAS, 2008, Invited

  
• Multi-scale-nonlinear interactions among micro-turbulence, double tearing instability and zonal flows

  A. Ishizawa; N. Nakajima

  NUCLEAR FUSION, Nov. 2007, Peer-reviewed

  
• Excitation of macromagnetohydrodynamic mode due to multiscale interaction in a quasi-steady equilibrium formed by a balance between microturbulence and zonal flow

  A. Ishizawa; N. Nakajima

  PHYSICS OF PLASMAS, Apr. 2007, Peer-reviewed

  
• Three-dimensional particle simulation on structure formation and plasma instabilities in collisionless driven reconnection

  H. Ohtani; R. Horiuchi; A. Ishizawa

  JOURNAL OF PLASMA PHYSICS, Dec. 2006, Peer-reviewed

  
• Plasma instabilities and anomalous resistivity in the current sheet

  T. Moritaka; R. Horiuchi; H. Ohtani; A. Ishizawa

  JOURNAL OF PLASMA PHYSICS, Dec. 2006, Peer-reviewed

  
• Towards cross-hierarchy simulation of collisionless driven reconnection in an open system

  R. Horiuchi; H. Ohtani; A. Ishizawa

  JOURNAL OF PLASMA PHYSICS, Dec. 2006, Peer-reviewed

  
• Dominant roles of pressure tensors in collisionless magnetic reconnection without a guide field

  A. Ishizawa; R. Horiuchi

  JOURNAL OF PLASMA PHYSICS, Dec. 2006, Peer-reviewed

  
• Waves in the Hall-magnetohydrodynamics model

  E Hameiri; A Ishizawa; A Ishida

  PHYSICS OF PLASMAS, Jul. 2005, Peer-reviewed

  
• Suppression of hall-term effects by gyroviscous cancellation in steady collisionless magnetic reconnection

  A Ishizawa; R Horiuchi

  PHYSICAL REVIEW LETTERS, Jul. 2005, Peer-reviewed

  
• Structure formation and dynamical behavior of kinetic plasmas controlled by magnetic reconnection

  R Horiuchi; H Otani; A Ishizawa

  COMPUTER PHYSICS COMMUNICATIONS, Dec. 2004, Peer-reviewed

  
• Shell model for rotating turbulence

  Y Hattori; R Rubinstein; A Ishizawa

  PHYSICAL REVIEW E, Oct. 2004, Peer-reviewed

  
• Two-scale structure of the current layer controlled by meandering motion during steady-state collisionless driven reconnection

  A Ishizawa; R Horiuchi; H Ohtani

  PHYSICS OF PLASMAS, Jul. 2004, Peer-reviewed

  
• Shell model for rotating turbulence

  Y. Hattori; R. Rubinstein; A. Ishizawa

  Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, 2004, Peer-reviewed

  
• Mass ratio dependence of current layer structure in collisionless driven reconnection collisionless driven reconnection

  A. Ishizawa; R. Horiuchi; H. Ohtani

  Journal of Plasma and Fusion Research, 2004, Peer-reviewed

  
• Electron inertia effects on m=1 instability in a cylindrical tokamak with a negative central current

  A Ishizawa; M Sato; M Wakatani

  PHYSICS OF PLASMAS, Jul. 2003, Peer-reviewed

  
• Improved theory of forced magnetic reconnection due to an error field and its application to seed island formation for the NTM

  A Ishizawa; S Tokuda; M Wakatani

  NUCLEAR FUSION, Dec. 2001, Peer-reviewed

  
• Response to "Comment on 'Improved boundary layer analysis of forced magnetic reconnection due to a boundary perturbation' " [Phys. Plasmas 8, 374 (2001)]

  A Ishizawa; S Tokuda

  PHYSICS OF PLASMAS, Jan. 2001

  
• Characteristic time scales and energy transfer in MHD turbulence

  Y Hattori; A Ishizawa

  IUTAM SYMPOSIUM ON GEOMETRY AND STATISTICS OF TURBULENCE, 2001, Peer-reviewed

  
• Improved theory of forced magnetic reconnection due to boundary perturbation

  A Ishizawa; S Tokuda

  EARTH PLANETS AND SPACE, 2001, Peer-reviewed

  
• Improved boundary layer analysis of forced magnetic reconnection due to a boundary perturbation

  A Ishizawa; S Tokuda

  PHYSICS OF PLASMAS, Mar. 2000, Peer-reviewed

  
• Large coherent structure formation by magnetic stretching term in two-dimensional MHD turbulence

  A Ishizawa; Y Hattori

  JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, Dec. 1998, Peer-reviewed

  
• Wavelet analysis of two-dimensional MHD turbulence

  A Ishizawa; Y Hattori

  JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, Feb. 1998, Peer-reviewed

  
• Vorticity distribution caused by three-dimensional disturbance in two-dimensional shear flow

  Akihiro Ishizawa; Tsuguo Takahashi

  Fluid Dynamics Research, 1997, Peer-reviewed

  
• Mechanism of Closed Vortex Formation in Shear Flow

  Ishizawa Akihiro

  J Phys Soc Jpn, 15 Feb. 1996

  
• Flow Around a Source Doublet in Shear Flow

  Akihiro Ishizawa; Tsuguo Takahashi

  Journal of the Physical Society of Japan, 1996, Peer-reviewed

  

Misc.

• Electron temperature measurement using electron bernstein emission in Heliotron J

  K. Nagasaki; Y. Kato; Y. Oka; H. Igami; T. Minami; S. Kado; S. Kobayashi; S. Ohshima; Y. Nakamura; A. Ishizawa; T. Mizuuchi; H. Okada; S. Konoshima; R. Matoike; A. Iwata; M. Luo; P. Zhang; C. Wang; Y. Kondo; N. Marushchenko

  47th EPS Conference on Plasma Physics, EPS 2021, 2021

  
• Energetic-particle-driven MHD instabilities and their control by ECH/ECCD in helical plasmas

  K. Nagasaki; S. Yamamoto; K. Nagaoka; J. Varela; Cappa; E. Ascasíbar; F. Castejón; A. Ishizawa; M. Isobe; S. Kado; S. Kobayashi; N. Marushchenko; A. Melnikov; T. Minami; T. Mizuuchi; Y. Nakamura; K. Ogawa; S. Ohshima; H. Okada; M. Osakabe; G. M. Weir

  46th EPS Conference on Plasma Physics, EPS 2019, 2019

  
• Heat transport analysis in high density NBI plasmas of Heliotron J

  X. X. Lu; S. Kobayashi; R. Seki; K. Y. Watanabe; D. L. Yu; K. Nagasaki; S. Kado; H. Okada; T. Minami; S. Ohshima; S. Yamamoto; A. Ishizawa; Y. Nakamura; S. Konoshima; T. Mizuuchi

  44th EPS Conference on Plasma Physics, EPS 2017, 2017

  
• 講座「今更聞けない !? 磁場閉じ込めプラズマの微視的不安定性」 5 ．電磁的イオン温度勾配不安定性と運動論的バルーニング不安定性

  石澤明宏

  プラズマ・核融合学会誌, Jul. 2023, Peer-reviewed, Invited, Lead author, Corresponding author

  
• Parity in Torus Plasmas

  Akihiro Ishizawa

  J. Plasma and Fusion Research, Jul. 2016, Invited, Lead author, Corresponding author

  
• Summary and Discussion

  Akihiro Ishizawa; Yasuaki Kishimoto; Hideo Sugama

  J. Plasma and Fusion Research, Jul. 2016, Invited, Lead author, Corresponding author

  
• Parity in Torus Plasmas, 3. Parity Symmetry along a Magnetic Field Line

  Akihiro Ishizawa

  J. Plasma and Fusion Research, Jul. 2016, Invited, Lead author, Corresponding author

  
• Two- and Gyro-Fluid Models and their Application to MHD Instabilities

  Akihiro Ishizawa

  J. Plasma Fusion Res., Apr. 2014, Peer-reviewed, Invited, Lead author

  
• 流体としての磁場閉じ込め核融合プラズマ－実験を意識した電磁流体力学方程式の拡張－

  中島徳嘉; 内藤裕志; 藤堂泰; 石澤明宏

  Journal of plasma and fusion research, Mar. 2009, Invited

  
• プラズマ理論の技法 支援論文

  Akihiro Ishizawa

  プラズマ・核融合学会誌, Sep. 2002, Invited

  
• An Intrinsic Difficulty in the Resistive-Boundary Layer Theory

  ISHIZAWA Akihiro

  Kakuyūgō kenkyū, 25 Sep. 2002

  
• Electromagnetic Gyrokinetic Analysis of Turbulent Transport in Finite-Beta LHD Plasmas

  A. Ishizawa; T.-H. Watanabe; H. Sugama; K. Tanaka; N. Nakajima

  IAEA Fusion Energy Conference proceedings, 2014

  
• Turbulent Transport due to Kinetic Ballooning Modes in High-Beta Toroidal Plasmas

  A. Ishizawa; S. Maeyama; T.-H. Watanabe; H. Sugama; N. Nakajima

  IAEA Fusion Energy Conference proceedings, Oct. 2012

  
• Transport due to Electromagnetic Turbulence in Externally Heated Plasma

  A. Ishizawa; N. Nakajima

  IAEA Fusion Energy Conference proceedings, Oct. 2008

  
• Multi-Scale-Nonlinear Interactions among Micro-Turbulence, Magnetic Islands

  A. Ishizawa; N. Nakajima; M. Okamoto; J. J. Ramos

  IAEA Fusion Energy Conference proceedings, Oct. 2006

  
• 境界層理論を用いた強制磁気再結合の解析

  石澤明宏; 徳田伸二; 若谷誠宏

  プラズマ・核融合学会誌, Oct. 2001

  
• 2D High-speed Visible Imaging Spectroscopy for Small Pellet Ablation Cloud in Heliotron J

  門信一郎; 森敦樹; 本島厳; 本島厳; 岩田晃拓; 竹内航希; 四竈泰一; 村雲南斗; 馮超; 蔡福瑞; 松谷遼; 大島慎介; 南貴司; 稲垣滋; 金史良; 小林進二; 中村祐司; 石澤明宏; 岡田浩之; 水内亨; 木島滋; 長崎百伸

  日本物理学会講演概要集(CD-ROM), 2023

  
• Linear and circular polarization spectroscopy of a near-infrared helium atom emission line from a Heliotron J plasma

  守田常裕; 四竈泰一; 村雲南斗; 門信一郎; 南貴司; 小林進二; 大島慎介; 岩田晃拓; 金史良; 石澤明宏; 中村祐司; 岡田浩之; 木島滋; 水内亨; 稲垣滋; 長崎百伸; 蓮尾昌裕

  日本物理学会講演概要集(CD-ROM), 2023

  
• Evaluation of the Electron Temperature of the Ablation Cloud for Small-size Hydrogen Pellet using Paschen series in Heliotron J

  岩田晃拓; 門信一郎; 本島巌; 四竈泰一; 村雲南斗; 森敦樹; 岡田浩之; 南貴司; 大島慎介; 稲垣滋; 金史良; 小林進二; 石澤明宏; 中村祐司; 木島滋; 水内亨; 長崎百伸

  日本物理学会講演概要集(CD-ROM), 2023

  
• Position measurement of a hydrogen pellet ablation cloud in Heliotron J using Zeeman effect on the Paschen-α line

  村雲南斗; 四竈泰一; 門信一郎; 大島慎介; 鈴木琢士; 茶谷智樹; 森敦樹; 岩田晃拓; 本島厳; 南貴司; 小林進二; 石澤明宏; 中村祐司; 西野信博; 岡田浩之; 木島滋; 水内亨; 長崎百伸; 蓮尾昌裕

  日本物理学会講演概要集(CD-ROM), 2023

  
• Two-dimensional measurement of the temporal evolution of pellet ablation cloud electron density in Heliotron J

  竹内航希; 門信一郎; 本島厳; 本島厳; 岩田晃拓; 四竈泰一; 村雲南斗; 馮超; 蔡福瑞; 松谷遼; 大島慎介; 南貴司; 稲垣滋; 金史良; 小林進二; 中村祐司; 石澤明宏; 岡田浩之; 水内亨; 木島滋; 長崎百伸

  プラズマ・核融合学会年会(Web), 2023

  
• Heliotron J Experiments

  長崎百伸; 水内亨; 岡田浩之; 南貴司; 門信一郎; 小林進二; 大島慎介; 岸本泰明; 中村祐司; 石澤明宏; 四竈泰一; 木島滋; 的池遼太; 横山雅之; 横山雅之; 本島厳; 本島厳; 小林達哉; 小林達哉; 西野信博; 山本聡; WEIR Gavin M.; ZANG Linge

  プラズマ・核融合学会誌, 2020

  
• ヘリオトロンJにおけるレーザーブローオフ分光法による不純物計測システムの検討

  門信一郎; 岩田晃拓; 清水佑馬; 田村直樹; 四竈泰一; 岡田浩之; 山本聡; 南貴司; 小林進二; 大島慎介; 中村祐司; 石澤明宏; 木島滋; 水内亨; 長崎百伸

  日本物理学会講演概要集(CD-ROM), 2019

  
• 簡易分光システムによるヘリオトロンJプラズマ対向壁からの可視及び近赤外領域における連続スペクトルの観測

  岩田晃拓; 門信一郎; 岡田浩之; 山本聡; 本島厳; 四竈泰一; 南貴司; 小林進二; 長崎百伸; 大島慎介; 中村祐司; 石澤明宏; 木島滋; 水内亨

  日本物理学会講演概要集(CD-ROM), 2018

  
• Measurement of Zeeman effect on a Paschen-alpha spectrum of a hydrogen pellet ablation plasma in Heliotron J

  村雲南斗; 四竈泰一; 茶谷智樹; 門信一郎; 大島慎介; 鈴木琢土; 森敦樹; 岩田晃拓; 本島厳; 南貴司; 小林進二; 石澤明宏; 中村祐司; 西野信博; 岡田浩之; 木島滋; 水内亨; 長崎百伸; 蓮尾昌裕

  日本物理学会講演概要集(CD-ROM), 2022

  
• 近赤外原子発光線の高波長分解分光によるリサイクリング束局所計測

  四竈泰一; 門信一郎; 岡田浩之; 山本聡; 松岡雷士; 水内亨; 南貴司; 小林進二; 長崎百伸; 大島慎介; 中村祐司; 石澤明宏; 木島滋; 蓮尾昌裕

  核融合エネルギー連合講演会(CD-ROM), 2018

  
• 近赤外簡易分光システムによるヘリオトロンJプラズマ対向壁からの連続スペクトルの観測

  岩田晃拓; 門信一郎; 岡田浩之; 山本聡; 本島厳; 四竈泰一; 南貴司; 小林進二; 長崎百伸; 大島慎介; 中村祐司; 石澤明宏; 木島滋; 水内亨

  核融合エネルギー連合講演会(CD-ROM), 2018

  
• 19pAD-3 Effects of magnetic drift on gyrokinetic micro-tearing mode

  Maeyama S.; Watanabe T.-H.; Nakata M.; Ishizawa A.

  Meeting Abstracts of the Physical Society of Japan, 2016

  
• Kinetic and fluid simulations of multi-scale interaction in magnetized plasmas

  Ishizawa Akihiro

  Meeting Abstracts of the Physical Society of Japan, 2016

  
• 16pCN-8 Modification of diamagnetic rotation of Mercier unstable interchange modes by heat transport

  Nicolas T.; Ichiguchi K.; Sato M.; Todo Y.; Suzuki Y.; Ishizawa A.; Sakakibara S.

  Meeting Abstracts of the Physical Society of Japan, 2015

  
• 16aCN-5 Triad Interactions in Gyrokinetic Multi-Scale Turbulence

  Maeyama S.; Watanabe T.-H.; Idomura Y.; Nakata M.; Ishizawa A.; Nunami M.

  Meeting Abstracts of the Physical Society of Japan, 2015

  
• 21pBH-8 Turbulent transport simulation with a flux-tube train model

  Watanabe T. -H.; Sugama H.; Ishizawa A.; Nunami M.

  Meeting Abstracts of the Physical Society of Japan, 2015

  
• 22aAP-3 Density gradient dependence of electron heat transport

  Asahi Y.; Ishizawa A.; Watanabe T. -H.; Sugama H.; Tsutsui S.; Tsuji-Iio S.

  Meeting Abstracts of the Physical Society of Japan, 2015

  
• Dynamical Evolution of Thin Current Sheets in a Three-Dimensional Open System

  Ritoku HORIUCHI; Hiroaki OHTANI; Akihiro ISHIZAWA

  Journal of Plasma and Fusion Research SERIES, 01 Jan. 2004

  
• 26pXA-4 Three-dimensional Particle Simulation on Dynamics and Plasma Instability of Collisionless Driven Reconnection

  OHTANI Hiroaki; HORIUCHI Ritoku; ISHIZAWA Akihiro; KAWAKITA Toru; MORITAKA Toseo

  Meeting abstracts of the Physical Society of Japan, 04 Mar. 2005

  
• Wavelet analysis of Decaying 2-D MHD Turbulence

  Ishizawa A.; Hattori Y.

  Abstracts of the meeting of the Physical Society of Japan. Annual meeting, 16 Mar. 1995

  
• 1p-Z-3 The vorticity distribution of the flow over a dipole in the shear flow.

  Ishizawa A.; Takasashi T.

  Abstracts of the meeting of the Physical Society of Japan. Annual meeting, 16 Mar. 1993

  
• 25pA04P Particle Kinetic Effects in Two-Dimensional Collisionless Driven Reconnection

  Kawakita Toru; Horiuchi Ritoku; Ishizawa Akihiro; Ohtani Hiroaki

  プラズマ・核融合学会年会予稿集, 2004

  
• Local Analysis of Decaying 2-D MHD Turbulence

  ISHIZAWA Akihiro; HATTORI Yuji

  年会一般講演, Jul. 1997

  
• 23pB02 Generation Mechanism of Anomalous Resistivity in Three-Dimensional Collisionless Reconnection

  Horiuchi Ritoku; Ohtani Hiroaki; Ishizawa Akihiro

  プラズマ・核融合学会年会予稿集, 2004

  
• Linear Analysis of Forced Magnetic Reconnection

  ISHIZAWA Akihiro; TOKUDA Shinji

  Meeting abstracts of the Physical Society of Japan, 05 Sep. 1998

  
• 第53回APSプラズマ物理分科会(DPP)

  四竃 泰一; 永島 芳彦; 石澤 明宏; 長友 英夫

  プラズマ・核融合学会誌 = Journal of plasma and fusion research, 25 Feb. 2012

  
• 28pWD-9 Statistical properties of a shell model for rotating turbulence

  Hattori Y.; Rubinstein R.; Ishizawa A.

  Meeting abstracts of the Physical Society of Japan, 03 Mar. 2004

  
• Time Evolution of Surface Current Induced on Rational Surface by Boundary Perturbation

  Ishizawa Akihiro; Tokuda Shinji; Wakatani Masahiro

  Meeting abstracts of the Physical Society of Japan, 03 Sep. 2001

  
• 30p-Z-1 Effect of Separtion on Vorticity Distribution around a Obstacle in Shear Flow

  Ishizawa A; Takahashi T

  Abstracts of the meeting of the Physical Society of Japan. Annual meeting, 16 Mar. 1994

  
• 強制磁気再結合の境界層理論 (臨界現象と微分方程式の解の分岐)

  石澤 明宏; 徳田 伸二; 若谷 誠宏

  数理解析研究所講究録, Oct. 2001

  Access this misc :

  
• Vorticity Distribution Around a Obstacle in Shear Flow(Proceedings of the 17th and 18th NAL Workshops on "Investigation and Control of Boundary-Layer Transition")

  Ishizawa Akihiro; Takahashi Tsuguo

  Special publication of National Aerospace Laboratory : SP, 1996

  
• Measurement of Zeeman effect on near-infrared atomic emission lines in Heliotron J

  茶谷智樹; 四竈泰一; 上野陽平; 門信一郎; 川染勇人; 南貴司; 岡田浩之; 松岡雷士; 小林進二; 大島慎介; 石澤明宏; 中村祐司; 木島滋; 水内亨; 長崎百伸; 蓮尾昌裕

  日本物理学会講演概要集(CD-ROM), 2021

  
• A local comparison of spectroscopy and transport simulation based on the high sensitivity measurement of Zeeman effect on a helium atom emission line

  茶谷智樹; 四竈泰一; 上野陽平; 門信一郎; 川染勇人; 南貴司; 小林進二; 大島慎介; 岩田晃拓; 的池遼太; 石澤明宏; 中村祐司; 岡田浩之; 木島滋; 水内亨; 長崎百伸; 蓮尾昌裕

  日本物理学会講演概要集(CD-ROM), 2021

  
• Development of an NIR spectroscopic system for high-precision measurements of Zeeman effects on atomic emission lines in fusion plasmas

  上野陽平; 四竈泰一; 茶谷智樹; 門信一郎; 川染勇人; 岡田浩之; 松岡雷士; 南貴司; 小林進二; 大島慎介; 石澤明宏; 中村祐司; 木島滋; 水内亨; 長崎百伸; 蓮尾昌裕

  日本分光学会年次講演会, 2020

  
• Development of an NIR spectroscopic system for high-sensitivity measurements of Zeeman effects on atomic emission lines in fusion plasmas

  上野陽平; 四竈泰一; 茶谷智樹; 門信一郎; 川染勇人; 岡田浩之; 松岡雷士; 南貴司; 小林進二; 大島慎介; 石澤明宏; 中村祐司; 木島滋; 水内亨; 長崎百伸; 蓮尾昌裕

  プラズマ・核融合学会年会(Web), 2020

  
• 近赤外ゼーマン分光法を用いたヘリオトロンJにおける原子発光ピーク位置計測

  四竈泰一; 門信一郎; 岡田浩之; 山本聡; 川染勇人; 松岡雷士; 南貴司; 小林進二; 大島慎介; 中村祐司; 石澤明宏; 木島滋; 水内亨; 長崎百伸; 上野陽平; 蓮尾昌裕

  日本物理学会講演概要集(CD-ROM), 2019

  
• Global gyrokinetic analysis of electromagnetic micro-instabilities and MHD instabilities

  Ishizawa Akihiro; Imadera Kenji; Nakamura Yuji; Kishimoto Yasuaki

  Meeting Abstracts of the Physical Society of Japan, 2018, Peer-reviewed

  
• Development of global electromagnetic gyrokinetic simulation code and its application to MHD instabilities

  Ishizawa A.; Imadera K.; Li J.Q.; Kishimoto Y.; Nakamura Y.

  Meeting Abstracts of the Physical Society of Japan, 2017, Peer-reviewed

  
• 核融合科学研究所における数値実験炉研究プロジェクト 2.核融合プラズマシミュレーション研究 2.2 コアプラズマの輸送

  菅野龍太郎; 佐竹真介; 沼波政倫; 仲田資季; 登田慎一郎; 山岸統; 洲鎌英雄; 渡邉智彦; 石澤明宏

  プラズマ・核融合学会誌, 25 Nov. 2016

  
• 19pAD-2 Gyrokinetic simulation of turbulent transport in Heliotron J

  Ishizawa A.; Nakamura Y.; Kishimoto Y.; Watanabe T.-H.; Kobayashi S.; Jiquan Li; Imadera K.; Nagasaki K.

  Meeting Abstracts of the Physical Society of Japan, 2016, Peer-reviewed

  
• Effects of TEM-driven Zonal Flow on ETG Turbulence

  Asahi Y.; Ishizawa A.; Watanabe T.-H.; Tsutsui H.; Tsuji-Iio S.

  Nov. 2014

  
• Reversible Collisionless Magnetic Reconnection

  Ishizawa A.; Watanabe T.-H.

  Meeting abstracts of the Physical Society of Japan, 26 Aug. 2013

  
• Suppression of electron temperature gradient turbulence by TEM driven zonal flow

  Asahi Y.; Ishizawa A.; Watanabe T.-H.; Tsutsui S.; Tsuji-Iio S.

  Meeting abstracts of the Physical Society of Japan, 26 Aug. 2013

  
• Extension of local gyrokinetic simulation method for magnetized plasma turbulence

  Watanabe T.-H.; Sugama H.; Ishizawa A.; Nunami M.

  Meeting abstracts of the Physical Society of Japan, 26 Aug. 2013

  
• 26pEC-2 Gyrokinetic turbulence in finite-beta LHD plasmas

  Ishizawa Akihiro; Maeyama Shinya; Watanabe Tomo-Hiko; Sugama Hideo; Nakajima Noriyoshi

  Meeting abstracts of the Physical Society of Japan, 26 Mar. 2013

  
• 26aEC-9 Gyrokinetic simulation study for the kinetic ion effects on Electron Anomalous Heat Transport

  ASAHI Yuuichi; ISHIZAWA Akihiro; WATANABE Tomo-Hiko; Tsuji-Iio Shunji; Tsutsui Hiroaki; Shimada Ryuuichi

  Meeting abstracts of the Physical Society of Japan, 26 Mar. 2013

  
• Massively-parallelized spectral calculations of the gyrokinetic simulation code GKV on the K computer

  前山 伸也; 渡邉 智彦; 井戸村 泰宏; 仲田 資季; 沼波 政倫; 石澤 明宏

  ハイパフォーマンスコンピューティングと計算科学シンポジウム論文集, 08 Jan. 2013

  
• Comparison between kinetic-ballooning-mode-driven turbulence and ion-temperature-gradient-driven one

  S. Maeyama; A. Ishizawa; T. H. Watanabe; M. Nakata; Y. Idomura

  40th EPS Conference on Plasma Physics, EPS 2013, 01 Jan. 2013

  
• Gyrokinetic Theory Working Group Meeting

  沼波 政倫; 渡邉 智彦; 洲鎌 英雄; 石澤 明宏

  プラズマ・核融合学会誌 = Journal of plasma and fusion research, 25 Oct. 2012

  
• 18aFA-10 Evolution of magnetic island in hot ion plasmas

  Ishizawa Akihiro; Nakajima Noriyoshi; Waelbroeck F. L.; Fitzpatrick R.; Horton W.

  Meeting abstracts of the Physical Society of Japan, 24 Aug. 2012

  
• Magnetic island evolution in hot ion plasmas with/without turbulence

  A. Ishizawa; F. L. Waelbroeck; R. Fitzpatrick; W. Horton; N. Nakajima

  39th European Physical Society Conference on Plasma Physics proceedings, Jun. 2012

  
• 25aYG-8 Development of a turbulence simulation code based on electromagnetic gyrokinetics

  Maeyama Shinya; Ishizawa Akihiro; Watanabe Tomohiko; Nakajima Noriyoshi; Tsuji-Iio Shunji; Tsutsui Hiroaki

  Meeting abstracts of the Physical Society of Japan, 05 Mar. 2012

  
• 26aGW-8 Magnetic island formation by turbulence in toroidal plasmas

  Ishizawa Akihiro; Nakajima Noriyoshi

  Meeting abstracts of the Physical Society of Japan, 03 Mar. 2011

  
• 26aGW-7 Numerical methods for parallel motions along magnetic field lines in gyrokinetic Vlasov simulations

  Maeyama S.; Ishizawa A.; Watanabe T.-H.; Nakajima N.; Tsuji-Iio S.; Tsutsui H.

  Meeting abstracts of the Physical Society of Japan, 03 Mar. 2011

  
• 21aTE-8 Effects of unsteady E×B flow on slab ITG turbulence and its model

  Maeyama S.; Ishizawa A.; Watanabe T. -H.; Skoric M.; Nakajima N.; Tsuji-Iio S.; Tsutsui H.

  Meeting abstracts of the Physical Society of Japan, 01 Mar. 2010

  
• 27pXE-10 The effect of unsteady zonal flows on drift wave turbulence

  Maeyama S.; Ishizawa A.; Watanabe T.-H.; Skoric M.; Nakajima N.; Iio-Tsuji S.; Tsutsui H.

  Meeting abstracts of the Physical Society of Japan, 03 Mar. 2009

  
• 28pSA-9 Tearing instability caused by turbulence

  Ishizawa A.; Nakajima N.

  Meeting abstracts of the Physical Society of Japan, 03 Mar. 2009

  
• 28pSA-7 The direction of rotation of magnetic island with finite width

  UZAWA Ken; Ishizawa Akihiro; Nakajima Noriyoshi

  Meeting abstracts of the Physical Society of Japan, 03 Mar. 2009

  
• 29aC25P Numerical simulation of interactions among macro-MHD, micro-turbulence, and zonal flows

  Ishizawa Akihiro; Nakajima Noriyoshi; Ramos J.

  プラズマ・核融合学会年会予稿集, 2006

  
• 30aA05P Non-linear interaction between micro-instabilities and global MHD instabilities in tokamak plasmas

  Ishizawa Akihiro; Nakajima Noriyoshi; Okamoto Masao

  プラズマ・核融合学会年会予稿集, 2005

  
• 28aA25P Current layer structure characterized not only by electron scale but also by ion scale in collisionless driven magnetic reconnection

  Ishizawa Akihiro; Horiuchi Ritoku; Ohtani Hiroaki

  プラズマ・核融合学会年会予稿集, 2003

  
• 28aA26P Three Dimensional Simulation on Collisionless Driven Magnetic Reconnection

  OHTANI H.; ISHIZAWA A.; HORIUCHI R.

  プラズマ・核融合学会年会予稿集, 2003

  
• Hindrance to Current Hole Formation due to Kink Instability by Two Fluid Effects

  Ishizawa Akihiro; Satou Masahiko; Wakatani Masahiro

  Meeting abstracts of the Physical Society of Japan, 13 Aug. 2002

  
• 29aB05 Magnetic islands formation as the response to external Derturbations

  Ishizawa Akihiro; Tokuda Shinji; Wakatani Masahiro

  プラズマ・核融合学会年会予稿集, 2001

  
• Linear analysis of forced magnetic reconnection due to a boundary perturbation (Coherent Vortical Structures : Their Roles in Turbulence Dynamics)

  Ishizawa Akihiro; Tokuda Shinji

  数理解析研究所講究録, Jan. 2000

  Access this misc :

  
• 25aV-7 Statistical properties of Shell models for MHD turbulence

  HATTORI Yuji; ISHIZAWA Akihiro

  Meeting abstracts of the Physical Society of Japan, 03 Sep. 1999

  
• 31p-G-1 Flow due to Singularities in Shear Flow

  Ishizawa A.; Takahashi T.

  Abstracts of the meeting of the Physical Society of Japan. Annual meeting, 15 Mar. 1996

  
• 28p-E-10 Local analysis of Decaying 2-D MHD Turbulence

  Ishizawa A.; Hattori Y.

  Abstracts of the meeting of the Physical Society of Japan. Sectional meeting, 12 Sep. 1995

  
• 4a-A-5 Effect of Separtion on Vorticity Distribution around a Obstacle in Shear Flow II

  Ishizawa A; Takahashi T

  Abstracts of the meeting of the Physical Society of Japan. Sectional meeting, 16 Aug. 1994

  
• 13p-ZA-4 The Mechanism of Closed Vortex Formation in a Shear Flow

  Ishizawa A.; Takahashi T.

  Abstracts of the meeting of the Physical Society of Japan. Sectional meeting, 20 Sep. 1993

  
• 26a-G-6 The flow over a dipole in the shear flow

  Ishizawa A; Takahashi T

  秋の分科会講演予稿集, 14 Sep. 1992

  

Presentations

• トカマク周辺プラズマを対象とした大域的ジャイロ運動論コードの開発

  奥田修平; 今寺賢志; 瀬戸春樹; 石澤明宏

  日本物理学会2024年春季大会, 21 Mar. 2024

  
• 運動論的バルーニングモード乱流の飽和機構

  石澤明宏; 今寺賢志; 中村祐司; 岸本泰明

  日本物理学会2024年春季大会, 19 Mar. 2024

  
• Plasma beta dependence of turbulent transport suggesting an advantage of weak magnetic shear

  A. Ishizawa; Y. Kishimoto; K. Imadera; Y. Nakamura; S. Maeyama

  29th IAEA Fusion Energy Conference, 17 Oct. 2023

  
• Beta dependence of turbulent transport via local and global gyrokinetic simulations

  Akihiro Ishizawa

  17th Japan-Korea workshop on "Modeling and Simulation of Magnetic Fusion", 28 Aug. 2023

  
• シャフラノフシフトの影響を受けたイオン温度勾配駆動乱流のプラズマベータ依存性

  新納希彬; 石澤明宏; 中村祐司; 前山伸也; 渡邉智彦

  日本物理学会 2023年春季大会, 22 Mar. 2023

  
• Saturation of drift-wave turbulence caused by the advection of entropy

  Akihiro Ishizawa; Kenji Imadera; Yuji Nakamura; Yasuaki Kishimoto

  日本物理学会2023年春季大会, 22 Mar. 2023

  
• Lecture on Parity of MHD fluctuations

  Akihiro Ishizawa

  US-Japan MHD Workshop on "MHD activity measurement and control in long-pulse operations towards DEMO", 07 Mar. 2023, Invited

  
• Saturation mechanism of ion temperature gradient driven turbulence in finite beta tokamaks studied by global gyrokinetic simulation

  A. Ishizawa; H. Masui; K. Imadera; Y. Kishimoto; Y. Nakamura

  The 27th International Conference on Numerical Simulation of Plasmas (ICNSP2022), 02 Sep. 2022

  
• 乱流輸送の電磁ジャイロ運動論シミュレーション

  石澤明宏

  第27回数値トカマク実験（NEXT）研究会, 08 Aug. 2022, Invited

  
• 有限ベータプラズマにおけるドリフト波乱流の飽和機構

  増井英陽; 石澤明宏; 今寺賢志; 岸本泰明; 中村祐司

  プラズマ・核融合学会 第38回年会, 24 Nov. 2021

  
• トカマクプラズマにおけるヘリカルコアの乱流輸送

  山上裕晃; 石澤明宏; 中村祐司

  プラズマ・核融合学会 第38回年会, 24 Nov. 2021

  
• 乱流輸送のベータ値依存性の大域的ジャイロ運動論シミュレーション

  石澤明宏; 今寺賢志; 中村祐司; 岸本泰明

  プラズマ・核融合学会 第38回年会, 24 Nov. 2021

  
• 非軸対称性を考慮したトカマクにおける電流クエンチの数値シミュレーション

  山下湧志朗; 中村祐司; 石澤明宏

  プラズマ・核融合学会 第38回年会, 24 Nov. 2021

  
• 非軸対称性を考慮したMHD 平衡計算コードの開発

  大谷瞭太; 中村祐司; 石澤明宏

  プラズマ・核融合学会 第38回年会, 24 Nov. 2021

  
• トカマクプラズマのトロイダルアルフェン固有モードにおける運動論効果

  伊藤幹也; 石澤明宏; 今寺賢志; 岸本泰明; 中村祐司

  プラズマ・核融合学会 第38回年会, 23 Nov. 2021

  
• Numerical Simulations of Non-axisymmetric Current Quench in Tokamaks

  Y. Yamashita; Y. Nakamura; A. Ishizawa

  The 30th International Toki Conference on Plasma and Fusion Research, 18 Nov. 2021

  
• Multi-scale interaction between toroidal Alfven eigenmode and drift-wave turbulence

  A. Ishizawa; K. Imadera; Y. Nakamura; Y. Kishimoto

  The 30th International Toki Conference on Plasma and Fusion Research, 17 Nov. 2021, Invited

  
• Saturation mechanism of drift-wave turbulence in finite-beta plasmas

  Hideaki Masui; Akihiro Ishizawa; Kenji Imadera; Yasuaki Kishimoto; Yuji Nakamura

  The 30th International Toki Conference on Plasma and Fusion Research, 16 Nov. 2021

  
• 大域的ジャイロ運動論シミュレーションによる乱流輸送のベータ値依存性

  石澤明宏; 今寺賢志; 中村祐司; 岸本泰明

  日本物理学会 2021年秋季大会, 22 Sep. 2021

  
• Normalized pressure dependence of turbulent transport influenced by the Shafranov shift

  K. Nakatani; A. Ishizawa; Y. Nakamura; S. Maeyama; T. -H. Watanabe

  47th European Physical Society Conference on Plasma Physics, 25 Jun. 2021

  
• Interaction Between Energetic-Particle-Driven MHD Mode and Drift-Wave Turbulence Based on Global Gyrokinetic Simulation

  A. Ishizawa; K. Imadera; Y. Nakamura; Y. Kishimoto

  28th IAEA Fusion Energy Conference, 13 May 2021

  
• トロイダルアルフェン固有モードに影響された乱流輸送

  石澤明宏; 今寺賢志; 中村祐司; 岸本泰明

  日本物理学会第76回年次大会, 14 Mar. 2021

  
• ヘリオトロンJにおける乱流輸送の磁場配位依存性

  新納希彬; 石澤明宏; 中村祐司; 小林進二

  日本物理学会第76回年次大会, 14 Mar. 2021

  
• Interaction between energetic-particle-driven MHD Mode and drift-wave turbulence

  A. Ishizawa; K. Imadera; Y. Nakamura; Y. Kishimoto

  Max-Planck Princeton Center Annual Meeting, 22 Jan. 2021, Invited

  
• トロイダルアルフェン固有モードとドリフト波乱流の相互作用

  石澤明宏; 今寺賢志; 中村祐司; 岸本泰明

  第37回 プラズマ・核融合学会 年会, 03 Dec. 2020

  
• トカマクにおけるヘリカルコア形成機構としての内部キンクモード

  河越俊平; 石澤明宏; 中村祐司; 相羽信行

  第37回 プラズマ・核融合学会 年会, 03 Dec. 2020

  
• シャフラノフシフトに影響された乱流輸送の規格化圧力依存性

  中谷滉平; 石澤明宏; 中村祐司; 前山伸也; 渡邉智彦

  第37回 プラズマ・核融合学会 年会, 01 Dec. 2020

  
• Normalized pressure dependence of turbulent transport influenced by the Shafranov shift

  K. Nakatani; A. Ishizawa; Y. Nakamura; S. Maeyama; T.-H. Watanabe

  The 29th International Toki Conference on Plasma and Fusion Research, 27 Oct. 2020

  
• 高エネルギー粒子駆動MHDモードとドリフト波乱流の相互作用

  石澤明宏; 今寺賢志; 中村祐司; 岸本泰明

  日本物理学会 2020年秋季大会, 10 Sep. 2020

  
• シャフラノフシフトに影響された乱流輸送の磁気シア依存性

  中谷滉平; 石澤明宏; 中村祐司; 前山伸也; 渡邉智彦

  日本物理学会 2020年秋季大会, 10 Sep. 2020

  
• トカマクのヘリカルコア発生機構としての内部キンクモード

  河越俊平; 石澤明宏; 中村祐司; 相羽信行

  日本物理学会 2020年秋季大会, 08 Sep. 2020

  
• MHDによる磁場構造が揺動および輸送へ与える影響

  石澤 明宏

  第36回 プラズマ・核融合学会 年会, 30 Nov. 2019

  
• 反転磁気シアトカマクにおける運動論的MHD不安定性の非線形飽和機構

  石田祐太郎; 石澤明宏; 今寺賢志; 岸本泰明; 中村祐司

  第36回 プラズマ・核融合学会 年会, 30 Nov. 2019

  
• トカマクにおける真空容器を流れる非軸対称渦電流の数値解析

  駒井克哉; 石澤明宏; 中村祐司

  第36回 プラズマ・核融合学会 年会, 30 Nov. 2019

  
• ヘリオトロンJにおけるポロイダルフロー計測に基づく径方向電場の解析

  萬家幹人; 小林進二; 門信一郎; 居田克己; 西村伸; 成嶋吉朗; 西岡賢二; 小林達哉; 大島慎介; 南貴司; 水内亨; 岡田浩之; 長慎一郎; 山下裕登; 村田駿介; 涌憲一郎; 中村祐司; 石澤明宏; 木島滋; 長﨑百伸

  第36回 プラズマ・核融合学会 年会, 30 Nov. 2019

  
• 運動論的バルーニングモードの非線形ジャイロ運動論シミュレーション

  石澤明宏; 今寺賢志; 中村祐司; 岸本泰明

  日本物理学会 2019年秋季大会, 10 Sep. 2019

  
• 負磁気シアトカマクにおける運動論的MHD不安定性の非線形飽和機構

  石田祐太郎; 石澤明宏; 今寺賢志; 岸本泰明; 中村祐司

  日本物理学会 2019年秋季大会, 10 Sep. 2019

  
• Interaction between MHD and turbulence and helical core

  Akihiro Ishizawa

  5th UNIST- Kyoto Univ. Workshop, 23 Apr. 2019

  
• ゼロ磁気シア領域を持つトカマクプラズマにおけるMHD不安定性の大域的ジャイロ運動論解析

  石田祐太郎; 石澤明宏; 今寺賢志; 岸本泰明; 中村祐司

  日本物理学会第74回年次大会, 14 Mar. 2019

  
• Gyrokinetic simulation of turbulent transport at finite beta

  A. Ishizawa; K. Imadera; Y. Kishimoto; Y. Nakamura

  Max Planck Princeton Center Workshop 2019, 20 Feb. 2019

  
• Development of a correlation ECE radiometer for electron temperature fluctuation measurements in Heliotron J

  Gavin M. Weir; Kazunobu Nagasaki; Jinxiang Zhu; Maoyuan Luo; Hiroyuki Okada; Takashi Minami; Shinichiro Kado; Shinji Kobayashi; Satoshi Yamamoto; Shinsuke Ohshima; Shigeru Konoshima; Yuji Nakamura; Akihiro Ishizawa; Xiang-xun Lu; Linge Zang; Nikolai Marushchenko; Yasuo Yoshimura; Tohru Mizuuchi

  EPJ Web of Conferences, 2019

  
• Numerical analysis of eddy current on the vacuum vessel in the non-axisymmetric tokamak plasma disruption

  高尾怜; 石澤明宏; 中村祐司

  第35回 プラズマ・核融合学会 年会, 03 Dec. 2018

  
• 微視的乱流のベータ値依存性へのローカルシアの影響

  浦野大介; 石澤明宏; 中村祐司; 渡邉智彦

  第35回 プラズマ・核融合学会 年会, 03 Dec. 2018

  
• Global gyrokinetic analysis of MHD instabilities in tokamak plasmas with zero magnetic shear region

  石田祐太郎; 石澤明宏; 中村祐司; 今寺賢志; 岸本泰明

  第35回 プラズマ・核融合学会 年会, 03 Dec. 2018

  
• Multi-scale interaction and parity mixture between turbulence and magnetic islands

  Akihiro Ishizawa

  2nd Asia-Pacific Conference on Plasma Physics, 13 Nov. 2018, Invited

  
• The study of multi-scale interaction and parity in turbulence/MHD system based on global flux driven simulation

  Akihiro Ishizawa

  THEORY OF FUSION PLASMAS, 28 Aug. 2018, Invited

  
• Electromagnetic global gyrokinetic simulation for the analysis of MHD instabilities and turbulence

  A. Ishizawa; K. Imadera; Y. Nakamura; Y. Kishimoto

  The 45th European Physical Society Conference on Plasma Physics, 05 Jul. 2018

  
• 電磁的不安定性の大域的ジャイロ運動論解析

  石澤明宏; 今寺賢志; 中村祐司; 岸本泰明

  第12回核融合エネルギー連合講演会, 28 Jun. 2018

  
• Multi-scale interaction and parity mixture between turbulence and magnetic islands

  Akihiro Ishizawa

  4th UNIST- Kyoto University Workshop, 25 May 2018

  
• 微視的不安定性のベータ値依存性へのローカルシアの影響

  浦野大介; 枡田健太; 石澤明宏; 中村祐司; 渡邉智彦

  日本物理学会 第73 回年次大会, 25 Mar. 2018

  
• 電磁的微視的不安定性およびMHD不安定性の大域的ジャイロ運動論解析

  石澤明宏; 今寺賢志; 中村祐司; 岸本泰明

  日本物理学会 第73 回年次大会, 25 Mar. 2018

  
• ヘリオトロンJにおける可視・近赤外簡易分光システムの相互感度較正

  岩田晃拓; 門信一郎; 金沢友美; 岡田浩之; 山本聡; 本島厳; 岡崎悠; 南貴司; 小林進二; 長崎百伸; 大島慎介; 中村裕司; 石澤明宏; 木島滋; 水内亨

  日本物理学会講演概要集(CD-ROM), 23 Mar. 2018

  
• ヘリオトロンJにおける可視・近赤外簡易分光システムの相互感度較正

  岩田晃拓; 門信一郎; 金沢友美; 岡田浩之; 山本聡; 本島厳; 岡崎悠B; 南貴司; 小林進二; 長崎百伸; 大島慎介; 中村祐司; 石澤明宏; 木島滋; 木島滋; 水内亨

  日本物理学会 第73 回年次大会, 22 Mar. 2018

  
• 非軸対称トカマクプラズマのディスラプション時に真空容器を流れる渦電流の数値解析

  高尾怜; 森健介; 石澤明宏; 中村祐司

  日本物理学会 第73 回年次大会, 22 Mar. 2018

  
• Code development of global electromagnetic gyrokinetic simulation

  A. Ishizawa; K. Imadera; Y. Nakamura; Y. Kishimoto

  Plasma Conference 2017, 23 Nov. 2017

  
• Beta dependence of micro-instabilities

  KENTA MASUDA; DAISUKE URANO; AKIHIRO ISHIZAWA; YUJI NAKAMURA; TOMOHIKO WATANABE

  Plasma Conference 2017, 22 Nov. 2017

  
• Numerical analysis of non-axisymmetric eddy current on the vacuum vessel in the tokamak current disruption

  Kensuke Mori; Satoru Takao; Akihiro Ishizawa; Yuji Nakamura

  Plasma Conference 2017, 22 Nov. 2017

  
• Gyrokinetic analysis of turbulent transport in LHD and Heliotron J plasmas

  A. Ishizawa; Y. Kishimoto; T.-H. Watanabe; H. Sugama; K. Tanaka; S. Satake; S. Kobayashi; K. Nagasaki; Y. Nakamura

  21st International Stellarator-Heliotron Workshop (ISHW2017), 04 Oct. 2017

  
• Multi-scale interaction between magnetic island and turbulence

  Akihiro Ishizawa

  12th Japan-Korea Workshop on "Modeling and Simulation of Magnetic Fusion Plasmas", 20 Jul. 2017

  
• Turbulent transport in LHD and Heliotron J plasmas

  A. Ishizawa; Y. Kishimoto; T.-H. Watanabe; H. Sugama; K. Tanaka; S. Satake; S. Kobayashi; K. Nagasaki; Y. Nakamura

  Asia-Pacific Transport Working Group Conference, 05 Jun. 2017

  
• Multi-scale interaction between island and turbulence

  Akihiro Ishizawa

  3rd UNIST- Kyoto Univ. Workshop on “Physics validation andcontrol of turbulent transport and MHD in fusion plasmas", 08 May 2017

  
• マイクロティアリングモードに対する電子温度勾配モードの影響

  前山伸也; 渡邉智彦; 石澤明宏

  日本物理学会第72回年次大会, 17 Mar. 2017

  
• 背景磁場のある無衝突磁気リコネクションにおける分布関数構造の解析

  下村和也; 渡邉智彦; 前山伸也; 石澤明宏

  日本物理学会第72回年次大会, 17 Mar. 2017

  
• Development of global electromagnetic gyrokinetic simulation code and its application to MHD instabilities

  A. Ishizawa; K. Imadera; Li JiquanA; Y. Kishimoto; Y. Nakamura

  日本物理学会第72回年次大会, 17 Mar. 2017

  
• ヘリオトロンJにおけるECH/ECCDを用いた高エネルギー粒子励起MHD不安定性の制御

  長﨑百伸; 山本聡; 國分大; 小林進二; 門信一郎; 南貴司; 大島慎介; 木島滋; 大谷芳明; X.X. Lu; 多和田斉興; 白波瀬一貴; 野﨑勇樹; 望月聡一郎; 飯村幹; 山田晃生; 中村祐司; 石澤明宏; 永岡賢一; 釼持尚輝; A. Cappa; G. Weir; 水内亨

  第72回日本物理学会年次大会, Mar. 2017

  
• ヘリオトロンJプラズマにおける有限要素法を用いたイオンサイクロトロン周波数帯加熱解析

  山本皓基; 岡田浩之; 笠原寛史; 門信一郎; 山本聡; 南貴司; 小林進二; 長崎百伸; 大島慎介; 中村祐司; 石澤明宏; 木島滋; 呂湘潯; 岡崎悠; 金沢友美; 田野平駿; 渡邊真太郎; 土師直之; 米村裕馬; 水内亨

  プラズマプロセシング研究会プロシーディングス(CD-ROM), 2017

  
• トカマクプラズマにおける内部キンクモードと分岐MHD 平衡

  濱中幸太; 鈴木康浩; 石澤明宏; 中村祐司

  第33回 プラズマ・核融合学会 年会, 29 Nov. 2016

  
• 反復法を用いたMHD 平衡コードの開発2

  松山顕也; 中村祐司; 石澤明宏

  第33回 プラズマ・核融合学会 年会, 29 Nov. 2016

  
• Multi-machine analysis of turbulent transport in helical systems via gyrokinetic simulation

  A. Ishizawa; Y. Nakamura; Y. Kishimoto; T.-H. Watanabe; H. Sugama; K. Tanaka; S. Kobayashi; K. Nagasaki

  26th IAEA Fusion Energy Conference, 21 Oct. 2016

  
• ECH/ECCDを用いた高エネルギー粒子励起MHD不安定性の制御

  長﨑百伸; 山本聡; 國分大; 小林進二; 門信一郎; 南貴司; 大島慎介; 木島滋; 釼持尚輝; 大谷芳明; 呂湘浔; 多和田斉興; 白波瀬一貴; 野崎勇樹; 望月聡一郎; 飯村幹; 山田晃生; 中村祐司; 石澤明宏; G.M. Weir; 水内亨

  第33回プラズマ・核融合学会年会, Oct. 2016

  
• 超高速荷電交換再結合分光装置の開発

  小林進二; 呂湘浔; 居田克巳; 小林達哉; 吉沼幹朗; 門信一郎; 大島慎介; 長崎百伸; 岡田浩之; 南貴司; 山本聡; 中村祐司; 石澤明宏; 西岡賢二; 木島滋; 水内亨

  第33回プラズマ・核融合学会年会, Oct. 2016

  
• Kinetic and fluid simulations of multi-scale interaction in magnetized plasmas

  Akihiro Ishizawa

  日本物理学会 2016 年秋季大会, 14 Sep. 2016

  
• ヘリカルプラズマにおける乱流輸送のジャイロ運動論シミュレーション

  石澤 明宏

  プラズマシミュレータシンポジウム 2016, 08 Sep. 2016, Invited

  
• Gyrokinetic analysis of turbulent transport in helical systems with different magnetic shear

  A. Ishizawa; Y. Nakamura; Y. Kishimoto; T.-H. Watanabe; H. Sugama; K. Tanaka; S. Kobayashi; K. Nagasaki

  Japan-Korea Workshop on "Modeling and Simulation of Magnetic Fusion Plasmas", 28 Jul. 2016

  
• ヘリオトロンJにおける高強度ガスパフを用いたH-mode遷移の研究

  小林進二; 大島慎介; 松田啓嗣; 長崎百伸; 岡田浩之; 南貴司; 門信一郎; 山本聡; G.M.Weir; 釼持尚輝; 大谷芳明; X.X.Lu; 居田克巳; 小林達哉; 中嶋洋輔; 中村祐司; 石澤明宏; 鈴木康浩; 村上定義; 渡邊清政; 關良輔; 木島滋; 水内亨

  第11回 核融合エネルギー連合講演会, Jul. 2016

  
• Development of Ultrafast Charge-eXchange Recombination Spectroscopy System in Heliotron J

  X.X. Lu; S. Kobayashi; H. Matsuda; K. Ida; T. Kobayashi; M. Yoshinuma; K. Nagasaki; S. Kado; H. Okada; T. Minami; S. Ohshima; S. Yamamoto; N. Kenmochi; Y. Otani; Y. Nakano; D. Od; D. Kokubu; A. Ishizawa; Y. Nakamura; S. Konoshima; T. Mizuuchi

  21th Topical Conference on High-Temperature Plasma Diagnostics, Jun. 2016

  
• Gyrokinetic analysis of turbulent transport in helical systems with different magnetic shear

  A. Ishizawa; Y. Nakamura; Y. Kishimoto; T.-H. Watanabe; H. Sugama; K. Tanaka; S. Kobayashi; K. Nagasaki

  2016 US Transport Task Force Workshop, 29 Mar. 2016

  
• ジャイロ運動論的マイクロティアリングモードにおける磁場ドリフトの影響

  前山伸也; 渡邉智彦; 仲田資季; 石澤明宏

  日本物理学会第71回年次大会, 19 Mar. 2016

  
• ヘリオトロンJにおける乱流輸送のジャイロ運動論シミュレーション

  石澤明宏; 中村祐司; 岸本泰明; 渡邉智彦; 小林進二; Li Jiquan; 今寺賢志; 長崎百伸

  日本物理学会第71回年次大会, 19 Mar. 2016

  
• LHDにおける乱流粒子輸送

  石澤明宏; 渡邉智彦; 洲鎌英雄; 沼波政倫; 前山伸也; 中島徳嘉

  第32回プラズマ・核融合学会年会, 27 Nov. 2015

  
• Gyrokinetic analysis of turbulent particle and heat transport in low- and high-Ti phases in a discharge of LHD

  A. Ishizawa; T.-H. Watanabe; H. Sugama; K. Tanaka; M. Nunami; M. Nakata; N. Nakajima

  20th International Stellarator-Heliotron Workshop, 05 Oct. 2015

  
• Gyrokinetic Analysis of Turbulent Particle and Heat Transport in Helical Plasmas

  Akihiro Ishizawa

  24th International Conference on the Numerical Simulation of Plasmas, 12 Aug. 2015, Invited

  
• 21pBH-8 Turbulent transport simulation with a flux-tube train model

  Watanabe T. -H.; Sugama H.; Ishizawa A.; Nunami M.

  Meeting Abstracts of the Physical Society of Japan, 2015, The Physical Society of Japan (JPS)

  
• 16aCN-5 Triad Interactions in Gyrokinetic Multi-Scale Turbulence

  Maeyama S.; Watanabe T.-H.; Idomura Y.; Nakata M.; Ishizawa A.; Nunami M.

  Meeting Abstracts of the Physical Society of Japan, 2015, The Physical Society of Japan (JPS)

  
• Turbulent transport of heat/particle in high ion temperature discharge in Large Helical Device

  Akihiro Ishizawa; Tomo-Hiko Watanabe; Hideo Sugama; Masanori Nunami; Shinya Maeyama; Noriyoshi Nakajima

  Plasma Conference 2014, 18 Nov. 2014

  
• Electromagnetic gyrokinetic simulation of turbulent transport in high ion temperature discharge of Large Helical Device

  A. Ishizawa; T.-H. Watanabe; H. Sugama; S. Maeyama; M. Nunami; N. Nakajima

  24th International Toki Conference, 04 Nov. 2014

  
• Electromagnetic gyrokinetic simulation of turbulent transport in high ion temperature discharge of Large Helical Device

  A. Ishizawa; T.-H. Watanabe; H. Sugama; M. Nunami; S. Maeyama; N. Nakajima

  第56回アメリカ物理学会 American Physical Society, Division of Plasma Physics, 27 Oct. 2014

  
• ヘリカルプラズマにおける電磁乱流のジャイロ運動論シミュレーション

  Akihiro Ishizawa

  プラズマシミュレータシンポジウム2014, 10 Sep. 2014

  
• Electromagnetic gyrokinetic simulations of plasma turbulence

  Akihiro Ishizawa

  7th ITER International School, 29 Aug. 2014, Invited

  
• Electromagnetic gyrokinetic simulations of turbulent transport in finite-beta torus plasmas

  A. Ishizawa; S. Maeyama; T.-H. Watanabe; H. Sugama; N. Nakajima

  12th Asia Pacific Plasma Theory Conference, 01 Jul. 2014

  
• Electromagnetic gyrokinetic simulations of turbulent transport in finite-beta torus plasmas

  A. Ishizawa; S. Maeyama; T.-H. Watanabe; H. Sugama; N. Nakajima

  4th Asia Pacific Transport Working Group International Conference, 10 Jun. 2014

  
• 電子/イオン系マルチスケール乱流シミュレーションによる電子熱輸送解析

  前山伸也; 渡邉智彦; 井戸村泰宏; 仲田資季; 矢木雅敏; 宮戸直亮; 沼波政倫; 石澤明宏

  核融合エネルギー連合講演会予稿集, 2014

  
• Finite-beta gyrokinetic turbulence simulations compared with Large Helical Device experiments

  A. Ishizawa; T.-H. Watanabe; H. Sugama; S. Maeyama; N. Nakajima

  23rd International Toki Conference, 18 Nov. 2013

  
• Electromagnetic gyrokinetic turbulence in high-beta helical plasmas

  Akihiro Ishizawa

  アメリカ物理学会55th American Physical Society, Division of Plasma Physics, 12 Nov. 2013, アメリカ物理学会, Invited

  
• An assessment of fluid closures based on gyrokinetic and hybrid simulations

  A. Ishizawa; S. Maeyama; T.-H. Watanabe; H. Sugama; N. Nakajima

  アメリカ物理学会55th American Physical Society, Division of Plasma Physics, 11 Nov. 2013

  
• 可逆性を持つ無衝突磁気リコネクション

  石澤明宏; 渡邉智彦

  日本物理学会 2013年秋季大会, 25 Sep. 2013

  
• ヘリカルプラズマにおける電磁乱流のジャイロ運動論シミュレーション

  石澤 明宏

  プラズマシミュレータシンポジウム2013, 11 Sep. 2013, Invited

  
• Theory of resonant MHD instabilities / Fluid theory of reconnecting instabilities

  Akihiro Ishizawa

  3rd East-Asian School, 08 Jul. 2013, Invited

  
• Electromagnetic gyrokinetic turbulence in finite beta helical plasmas

  Akihiro Ishizawa

  Turbulence, Transport and Structures in Magnetized Plasmas, 03 Jun. 2013, Invited

  
• Electromagnetic gyrokinetic turbulence in finite beta helical plasmas

  Akihiro Ishizawa

  6th IAEA Technical Meeting on Theory of Plasmas Instabilities, 28 May 2013, Invited

  
• 有限ベータLHDプラズマにおける乱流のジャイロ運動論シミュレーション

  石澤明宏; 前山伸也; 渡邉智彦; 洲鎌英雄; 中島徳嘉

  日本物理学会 第68回年次大会, 26 Mar. 2013

  
• Magnetic island evolution in hot ion plasmas with ITG turbulence

  A. Ishizawa; F. L. Waelbroeck; R. Fitzpatrick; W. Horton; N. Nakajima

  22nd International Toki Conference, 19 Nov. 2012

  
• 有限イオン温度における磁気島の成長

  石澤明宏; F.ウォルブロック; R.フィッツパトリック; W.ホートン; 中島徳嘉

  日本物理学会 2012年秋季大会, 18 Sep. 2012

  
• Magnetic island evolution in hot ion plasmas with/without turbulence

  A. Ishizawa; F. L. Waelbroeck; R. Fitzpatrick; W. Horton; N. Nakajima

  39th European Physical Society Conference on Plasma Physics, 02 Jul. 2012

  
• 乱流による磁気リコネクション

  石澤 明宏

  日本天文学会春季年会 (合同プラズマ共催セッション), 19 Mar. 2012

  
• 乱流による磁気リコネクション

  Akihiro Ishizawa

  NINS/UT Reconnection Workshop 2012, 19 Feb. 2012, Invited

  
• Effects of ion-temperature-gradient driven turbulence on magnetic islands

  A. Ishizawa; F. L. Waelbroeck; R. Fitzpatrick; W. Horton; N. Nakajima

  21st International Toki Conference, 28 Nov. 2011

  
• Effects of Micro-Turbulence on Excitation of NTM

  A. Ishizawa; F. L. Waelbroeck; R. Fitzpatrick; W. Horton; N. Nakajima

  Plasma Conference 2011, 22 Nov. 2011, Invited

  
• Effects of ion-temperature-gradient driven turbulence on magnetic islands

  A. Ishizawa; F. L. Waelbroeck; R. Fitzpatrick; W. Horton; N. Nakajima

  53rd Annual Meeting of the APS Division of Plasma Physics, 14 Nov. 2011

  
• Interaction of turbulence and macro-MHD

  Akihiro Ishizawa

  Festival de Théorie 2011, 04 Jul. 2011, Invited

  
• Interaction of Drift Wave Turbulence and Magnetic Islands

  Akihiro Ishizawa

  International Sherwood Fusion Theory Conference, 02 May 2011, Invited

  
• トロイダルプラズマにおける乱流による磁気島生成

  石澤明宏; 中島徳嘉

  日本物理学会 第66回年次大会, 25 Mar. 2011

  
• Turbulence driven magnetic reconnection causing long-wavelength magnetic islands

  Akihiro Ishizawa

  1st Workshop of International Institute of Fusion Science, 21 Jun. 2010

  

External funds: Kakenhi

• Impact of turbulence on the transport of energetic particles

  Grant-in-Aid for Scientific Research (C)

  Kyoto University

  石澤 明宏

  From 01 Apr. 2017, To 31 Mar. 2024, Granted

  プラズマ閉じ込め;非線形;乱流;MHD;燃焼プラズマ;数値シミュレーション;ジャイロ運動論;プラズマ・核融合;高エネルギー粒子;シミュレーション

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17K06991/
• Numerical simulation study of plasma-beta scaling of turbulent transport

  Grant-in-Aid for Scientific Research (C)

  Kyoto University;National Institute for Fusion Science

  Akihiro Ishizawa

  From 28 Apr. 2011, To 31 Mar. 2016, Project Closed

  プラズマ;乱流;核融合;運動論;シミュレーション;電磁的;プラズマベータ;輸送;有限圧力;数値シミュレーション;非線形;ドリフト波;リコネクション

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23561003/
• Simulation study of interactions between reconnecting magnetohydrodynamic instability and micro-turbulence

  Grant-in-Aid for Young Scientists (B)

  National Institute for Fusion Science

  Akihiro ISHIZAWA

  From 01 Apr. 2006, To 31 Mar. 2009, Project Closed

  プラズマ閉じ込め;安定性;乱流;磁気流体不安定性;多階層相互作用;熱輸送;数値シミユレーション;微視的乱流;多階層;数値シミュレーション

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18760642/
• 燃焼プラズマにおける周辺局在モードを介したコア領域と周辺領域の大域的相互作用

  Grant-in-Aid for Scientific Research (C)

  Basic Section 14020:Nuclear fusion-related

  Kyoto University

  石澤 明宏

  From 01 Apr. 2024, To 31 Mar. 2029, Granted

  核融合;プラズマ;乱流;数値シミュレーション;燃焼プラズマ

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24K06991/

Education

Teaching subject(s)

• From 01 Apr. 2024, To 31 Mar. 2025

  Applied Mathematics for Engineering F2

  2065, Spring, Faculty of Engineering, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Fundamental Physics B

  N226, Fall, Institute for Liberal Arts and Sciences, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Fundamental Energy Science

  3211, Spring, Graduate School of Energy Science, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Magnetohydrodynamics II

  3235, Fall, Graduate School of Energy Science, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Applied Mathematics for Engineering F2

  2065, Spring, Faculty of Engineering, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Fundamental Physics B

  N226, Fall, Institute for Liberal Arts and Sciences, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Fundamental Energy Science

  3211, Spring, Graduate School of Energy Science, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Magnetohydrodynamics II

  3235, Fall, Graduate School of Energy Science, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Magnetohydrodynamics I

  3234, Spring, Graduate School of Energy Science, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Exercise of Electric and Electronic Circuits

  6118, Spring, Faculty of Engineering, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Fundamental Energy Science

  3211, Spring, Graduate School of Energy Science, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Magnetohydrodynamics II

  3235, Fall, Graduate School of Energy Science, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Fundamental Physics B

  N226, Fall, Institute for Liberal Arts and Sciences, 2
• From Apr. 2016, To Mar. 2017

  Fundamental Energy Science

  Spring, エネルギー科学研究科
• From Apr. 2016, To Mar. 2017

  Fundamental Physics B

  Fall, 全学共通科目
• From Apr. 2016, To Mar. 2017

  Magnetohydrodynamics II

  Fall, エネルギー科学研究科
• From Apr. 2016, To Mar. 2017

  Magnetohydrodynamics I

  Spring, エネルギー科学研究科
• From Apr. 2017, To Mar. 2018

  Fundamental Energy Science

  Spring, エネルギー科学研究科
• From Apr. 2017, To Mar. 2018

  Fundamental Physics B

  Fall, 全学共通科目
• From Apr. 2017, To Mar. 2018

  Magnetohydrodynamics II

  Fall, エネルギー科学研究科
• From Apr. 2017, To Mar. 2018

  Magnetohydrodynamics I

  Spring, エネルギー科学研究科
• From Apr. 2018, To Mar. 2019

  Fundamental Energy Science

  Spring, エネルギー科学研究科
• From Apr. 2018, To Mar. 2019

  Fundamental Physics B

  Fall, 全学共通科目
• From Apr. 2018, To Mar. 2019

  Exercise of Electric and Electronic Circuits

  Spring, 工学部
• From Apr. 2018, To Mar. 2019

  Magnetohydrodynamics II

  Fall, エネルギー科学研究科
• From Apr. 2018, To Mar. 2019

  Magnetohydrodynamics I

  Spring, エネルギー科学研究科
• From Apr. 2019, To Mar. 2020

  Fundamental Energy Science

  Spring, エネルギー科学研究科
• From Apr. 2019, To Mar. 2020

  Fundamental Physics B

  Fall, 全学共通科目
• From Apr. 2019, To Mar. 2020

  Exercise of Electric and Electronic Circuits

  Spring, 工学部
• From Apr. 2019, To Mar. 2020

  Magnetohydrodynamics II

  Fall, エネルギー科学研究科
• From Apr. 2019, To Mar. 2020

  Magnetohydrodynamics I

  Spring, エネルギー科学研究科
• From Apr. 2020, To Mar. 2021

  Fundamental Energy Science

  Spring, エネルギー科学研究科
• From Apr. 2020, To Mar. 2021

  Fundamental Physics B

  Fall, 全学共通科目
• From Apr. 2020, To Mar. 2021

  Exercise of Electric and Electronic Circuits

  Spring, 工学部
• From Apr. 2020, To Mar. 2021

  Magnetohydrodynamics II

  Fall, エネルギー科学研究科
• From Apr. 2020, To Mar. 2021

  Magnetohydrodynamics I

  Spring, エネルギー科学研究科
• From Apr. 2021, To Mar. 2022

  Fundamental Physics B

  Fall, 全学共通科目
• From Apr. 2021, To Mar. 2022

  Exercise of Electric and Electronic Circuits

  Spring, 工学部

Participation in PhD Defense

• Global Gyrokinetic Study of Pro？le Formation and Turbulent Transport in Tokamak Plasmas

  MUTO MIKIYA, Graduate School of Energy Science, Chief Examiner

  25 Mar. 2024

Administration

School management (title, position)

• From 01 Apr. 2015, To 31 Mar. 2017

  宇治おうばくプラザ運営ワーキンググループ 構成員

Faculty management (title, position)

• From 01 Apr. 2024, To 31 Mar. 2025

  教育研究委員会委員
• From 01 Apr. 2024, To 31 Mar. 2025

  専攻長
• From 01 Apr. 2023, To 31 Mar. 2024

  将来構想委員会委員
• From 01 Apr. 2023, To 31 Mar. 2024

  広報委員会委員
• From 01 Apr. 2022, To 31 Mar. 2023

  入試委員会　委員
• From 01 Apr. 2016

  入試委員会　委員
• From 01 Apr. 2020, To 31 Mar. 2021

  基盤整備委員会　委員
• From 01 May 2020, To 30 Apr. 2022

  宇治地区構内保安・交通対策委員会　委員
• From 01 Apr. 2019, To 31 Mar. 2021

  宇治地区環境保全委員会　委員
• From 01 Apr. 2021, To 31 Mar. 2022

  入試委員会　委員
• From 01 Apr. 2021, To 31 Mar. 2023

  宇治地区環境保全委員会　委員