Ishizawa Akihiro

Affiliation and department：

Research field (2)： Basic plasma science , Nuclear fusion

Research theme for competitive and other funds (4)：

2017 - 2023 Impact of turbulence on the transport of energetic particles
2011 - 2016 Numerical simulation study of plasma-beta scaling of turbulent transport
2006 - 2008 Simulation study of interactions between reconnecting magnetohydrodynamic instability and micro-turbulence
2000 - 2002 境界層理論を用いた核融合プラズマ装置の誤差磁場による閉じ込め劣化の研究

Papers (99)：

Akihiro Ishizawa, Yasuaki Kishimoto, Kenji Imadera, Yuji Nakamura, Shinya Maeyama. Plasma beta dependence of turbulent transport suggesting an advantage of weak magnetic shear from local and global gyrokinetic simulations. Nuclear Fusion. 2024
P. Adulsiriswad, Y. Todo, S. Yamamoto, S. Kado, S. Kobayashi, S. Ohshima, H. Okada, T. Minami, Y. Nakamura, A. Ishizawa, et al. 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. Nuclear Fusion. 2024
M Niiro, A Ishizawa, Y Nakamura, S Maeyama, T-H Watanabe. Plasma beta dependence of ion temperature gradient driven turbulence influenced by Shafranov shift. Plasma Physics and Controlled Fusion. 2023. 65. 6. 065004-065004
Y. Kishimoto, K. Imadera, A. Ishizawa, W. Wang, J. Q. Li. Characteristics of constrained turbulent transport in flux-driven toroidal plasmas. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 2023. 381. 2242
Shinya Maeyama, Tomo-Hiko Watanabe, Motoki Nakata, Masanori Nunami, Yuuichi Asahi, Akihiro Ishizawa. Multi-scale turbulence simulation suggesting improvement of electron heated plasma confinement. Nature Communications. 2022. 13. 1

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MISC (84)：

石澤明宏. 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. プラズマ・核融合学会誌. 2023. 99. 7. 356-364
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, et al. 2D High-speed Visible Imaging Spectroscopy for Small Pellet Ablation Cloud in Heliotron J. 日本物理学会講演概要集(CD-ROM). 2023. 78. 2
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, et al. Linear and circular polarization spectroscopy of a near-infrared helium atom emission line from a Heliotron J plasma. 日本物理学会講演概要集(CD-ROM). 2023. 78. 2
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, et al. Evaluation of the Electron Temperature of the Ablation Cloud for Small-size Hydrogen Pellet using Paschen series in Heliotron J. 日本物理学会講演概要集(CD-ROM). 2023. 78. 1
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, et al. Position measurement of a hydrogen pellet ablation cloud in Heliotron J using Zeeman effect on the Paschen-α line. 日本物理学会講演概要集(CD-ROM). 2023. 78. 1

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Lectures and oral presentations (113)：

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
(日本物理学会2024年春季大会 2024)
運動論的バルーニングモード乱流の飽和機構
(日本物理学会2024年春季大会 2024)
Plasma beta dependence of turbulent transport suggesting an advantage of weak magnetic shear
(29th IAEA Fusion Energy Conference 2023)
Beta dependence of turbulent transport via local and global gyrokinetic simulations
(17th Japan-Korea workshop on "Modeling and Simulation of Magnetic Fusion" 2023)
Saturation of drift-wave turbulence caused by the advection of entropy
(2023)

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Awards (1)：

2021/10 - National Institutes for Quantum Science and Technology 核融合大型計算機利用研究優秀賞 Electromagnetic gyrokinetic numerical experiment of tokamak

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