石澤明宏 (Akihiro Ishizawa) - マイポータル

基本情報

所属: 京都大学大学院エネルギー科学研究科エネルギー基礎科学専攻

ORCID iD: https://orcid.org/0000-0002-5323-8448
J-GLOBAL ID: 201501002371926185
researchmap会員ID: 7000013550

研究分野

受賞

2021年10月

核融合大型計算機利用研究優秀賞, Electromagnetic gyrokinetic numerical experiment of tokamak, 国立研究開発法人量子科学技術研究開発機構

石澤明宏

論文

114

Gyrokinetic simulations of turbulence-driven magnetic islands in toroidal geometry

F. Widmer, E. Poli, A. Mishchenko, A. Ishizawa, T. Hayward-Schneider, A. Bottino

Physics of Plasmas 2026年5月1日
Possible seed for internal transport barrier in L-mode plasmas modeled on JT-60U reversed magnetic shear discharge subject to profile constraints

Rui Zhao, Kenji Imadera, Wei Wang, Jiquan Li, Zheng-Xiong Wang, Akihiro Ishizawa, Yasuaki Kishimoto

Nuclear Fusion 2026年3月16日査読有り
Global gyrokinetic simulation code utilizing field-aligned coordinates for studying electromagnetic turbulence in tokamak plasmas

S. Okuda, K. Imadera, T. Görler, T. Hayward-Schneider, A. Bottino, E. Poli, A. Ishizawa

Physics of Plasmas 2026年2月1日
Application of non-integer-n RMP coil current waveform for ELM control in JA DEMO

Shota Sugiyama, Nobuyuki Aiba, Yasuhiro Suzuki, Go Matsunaga, Yuji Nakamura, Masaru Furukawa, Akihiro Ishizawa, Yoshiteru Sakamoto

Nuclear Fusion 2026年1月5日
Characterisation of turbulence suppression by fast-ion-Alfvénic instability

Akihiro Ishizawa, Emanuele Poli, Alessandro Di Siena, Taik Soo Hahm

Communications Physics 8(1) 2025年11月28日筆頭著者責任著者
Understanding turbulence suppression in JET D-T plasma with highly energetic fast ions via global gyrokinetic GENE simulations

Alessandro Di Siena, Jeronimo Garcia, Gabriele Merlo, Alejandro Banon Navarro, Facundo Sheffild, Emanuele Poli, Akihiro Ishizawa, Yevgen Kazakov, Jacobo Varela, Tobias Görler …

Nuclear Fusion 2025年7月2日査読有り
Characteristics of global dispersion and mode distribution modeled for JT-60U-like strongly reversed magnetic shear plasmas exhibiting L-modes with strong profile constraints

Rui Zhao, Kenji Imadera, Jianfu Liu, Wei Wang, Jiquan Li, Akihiro Ishizawa, Yasuaki Kishimoto

Nuclear Fusion 2025年4月10日査読有り
High-sensitivity measurement of Zeeman effect using hydrogen Paschen-α emission line in fusion-divertor-relevant plasma

Minato Murakumo, Taiichi Shikama, Shinichiro Kado, Akihiro Iwata, Tsunehiro Morita, Shinsuke Oshima, Takuto Suzuki, Atsuki Mori, Gen Motojima, Takashi Minami …

Review of Scientific Instruments 2025年4月1日
Rotating flux-tube model for local gyrokinetic simulations with background flow and magnetic shears

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

Journal of Computational Physics 113595-113595 2024年11月査読有り最終著者
Linear and nonlinear dynamics of self-consistent collisionless tearing modes in toroidal gyrokinetic simulations

F. Widmer, E. Poli, A. Mishchenko, A. Ishizawa, A. Bottino, T. Hayward-Schneider

Physics of Plasmas 2024年11月1日
Turbulence spreading induced E×B vortex flow generation in a magnetic island

Eisung Yoon, Taik-Soo Hahm, Gyungjin Choi, YoungWoo Cho, Akihiro Ishizawa, Minjun J. Choi, Jaemin Kwon

Nuclear Fusion 2024年10月3日査読有り
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 …

Physical Review Letters 132(23) 2024年6月7日査読有り
Turbulent particle pinch in gyrokinetic flux-driven ITG/TEM turbulence

Kenji Imadera, Yasuaki Kishimoto, Akihiro Ishizawa

Nuclear Fusion 2024年5月31日査読有り最終著者
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 2024年4月11日査読有り筆頭著者責任著者
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 …

Contributions to Plasma Physics 2024年1月
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 …

Nuclear Fusion 2024年1月1日
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 65(6) 065004-065004 2023年4月21日査読有り
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 381(2242) 2023年1月2日査読有り
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 13(1) 2022年12月査読有り最終著者
Measurement of Pa α line from pellet ablation cloud in Heliotron J

A. Iwata, S. Kado, M. Murakumo, T. Shikama, G. Motojima, A. Mori, C. Feng, H. Okada, T. Minami, S. Ohshima …

Review of Scientific Instruments 2022年11月1日