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K. Itoh
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Journal Articles

Impurity reduction in lightly doped n-type gallium nitride layer grown via halogen-free vapor-phase epitaxy

Open Access
T. Kimura, H. Shimazu, K. Kataoka, K. Itoh, T. Narita, A. Uedono, Y. Tokuda, D. Tanaka, S. Nitta, H. Amano, D. Nakamura
Journal: Applied Physics Letters
Appl. Phys. Lett. 124, 052104 (2024)
https://doi.org/10.1063/5.0191774
Published: January 2024
View articletitled, Impurity reduction in lightly doped n-type gallium nitride layer grown via halogen-free vapor-phase epitaxy
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Includes: Supplementary data
Journal Articles

Turbulence spreading and its effects on the edge flows and turbulence during sawtooth cycles in the J-TEXT tokamak plasmas

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Jinyu Zhang, Kaijun Zhao, Zhoujun Yang, Zhipeng Chen, Zhibin Guo, Jiaqi Dong, K. Itoh, Zhongyong Chen, Yuejiang Shi, Yonghua Ding, Jiquan Li, Yaoyu Xie, Huaiqiang Zhang, Yuqian Chen, Ran Li, Xiaogang Cao, Junjie Du, Jiaming Jiang, Guoshu Zhang, Jun Cheng, Jianqiang Xu, Lin Xiang, Nengchao Wang, Lu Wang, Yunfeng Liang, J-TEXT team
Journal: Physics of Plasmas
Phys. Plasmas 30, 082305 (2023)
https://doi.org/10.1063/5.0153055
Published: August 2023
View articletitled, Turbulence spreading and its effects on the edge flows and turbulence during sawtooth cycles in the J-TEXT tokamak plasmas
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Journal Articles

Formation of density corrugations due to zonal flow in wave-kinetic framework

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M. Sasaki, K. Itoh, B. F. McMillan, T. Kobayashi, H. Arakawa, J. Chowdhury
Journal: Physics of Plasmas
Phys. Plasmas 28, 112304 (2021)
https://doi.org/10.1063/5.0055777
Published: November 2021
View articletitled, Formation of density corrugations due to zonal flow in wave-kinetic framework
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Journal Articles

Interactions of drift wave turbulence with streamer flows in wave-kinetic formalism

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M. Sasaki, H. Arakawa, T. Kobayashi, F. Kin, Y. Kawachi, T. Yamada, K. Itoh
Journal: Physics of Plasmas
Phys. Plasmas 28, 102304 (2021)
https://doi.org/10.1063/5.0059839
Published: October 2021
View articletitled, Interactions of drift wave turbulence with streamer flows in wave-kinetic formalism
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Journal Articles

Spatial structure of low-frequency fluctuations throughout the transition of poloidal flow velocity in edge plasmas of LHD

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C. Moon, T. Kobayashi, K. Ida, T. Tokuzawa, C. Hidalgo, M. Yoshinuma, K. Ogawa, K. Itoh, A. Fujisawa, LHD Experiment Group
Journal: Physics of Plasmas
Phys. Plasmas 26, 092302 (2019)
https://doi.org/10.1063/1.5098954
Published: September 2019
View articletitled, Spatial structure of low-frequency fluctuations throughout the transition of poloidal flow velocity in edge plasmas of LHD
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Journal Articles

Roles of solitary eddy and splash in drift wave–zonal flow system in a linear magnetized plasma

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H. Arakawa, M. Sasaki, S. Inagaki, Y. Kosuga, T. Kobayashi, N. Kasuya, T. Yamada, Y. Nagashima, F. Kin, A. Fujisawa, K. Itoh, S.-I. Itoh
Journal: Physics of Plasmas
Phys. Plasmas 26, 052305 (2019)
https://doi.org/10.1063/1.5094577
Published: May 2019
View articletitled, Roles of solitary eddy and splash in drift wave–zonal flow system in a linear magnetized plasma
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Journal Articles

Observations of radially elongated particle flux induced by streamer in a linear magnetized plasma

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F. Kin, A. Fujisawa, K. Itoh, Y. Kosuga, M. Sasaki, S. Inagaki, Y. Nagashima, T. Yamada, N. Kasuya, K. Yamasaki, K. Hasamada, B. Y. Zhang, Y. Kawachi, H. Arakawa, T. Kobayashi, S.-I. Itoh
Journal: Physics of Plasmas
Phys. Plasmas 26, 042306 (2019)
https://doi.org/10.1063/1.5093218
Published: April 2019
View articletitled, Observations of radially elongated particle flux induced by streamer in a linear magnetized plasma
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Journal Articles

Formation of spiral structures of turbulence driven by a strong rotation in magnetically cylindrical plasmas

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M. Sasaki, Y. Camenen, A. Escarguel, S. Inagaki, N. Kasuya, K. Itoh, T. Kobayashi
Journal: Physics of Plasmas
Phys. Plasmas 26, 042305 (2019)
https://doi.org/10.1063/1.5085372
Published: April 2019
View articletitled, Formation of spiral structures of turbulence driven by a strong rotation in magnetically cylindrical plasmas
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Journal Articles

Extraction of nonlinear waveform in turbulent plasma

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F. Kin, K. Itoh, A. Fujisawa, Y. Kosuga, M. Sasaki, T. Yamada, S. Inagaki, S.-I. Itoh, T. Kobayashi, Y. Nagashima, N. Kasuya, H. Arakawa, K. Yamasaki, K. Hasamada
Journal: Physics of Plasmas
Phys. Plasmas 25, 062304 (2018)
https://doi.org/10.1063/1.5027124
Published: May 2018
View articletitled, Extraction of nonlinear waveform in turbulent plasma
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Journal Articles

Spatio-temporal dynamics of turbulence trapped in geodesic acoustic modes

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M. Sasaki, T. Kobayashi, K. Itoh, N. Kasuya, Y. Kosuga, A. Fujisawa, S.-I. Itoh
Journal: Physics of Plasmas
Phys. Plasmas 25, 012316 (2018)
https://doi.org/10.1063/1.5008541
Published: January 2018
View articletitled, Spatio-temporal dynamics of turbulence trapped in geodesic acoustic modes
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Journal Articles

Observation of distorted Maxwell-Boltzmann distribution of epithermal ions in LHD

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K. Ida, T. Kobayashi, M. Yoshinuma, T. Akiyama, T. Tokuzawa, H. Tsuchiya, K. Itoh, LHD Experiment Group
Journal: Physics of Plasmas
Phys. Plasmas 24, 122502 (2017)
https://doi.org/10.1063/1.4999644
Published: December 2017
View articletitled, Observation of distorted Maxwell-Boltzmann distribution of epithermal ions in LHD
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Journal Articles

Topological bifurcation of helical flows in magnetized plasmas with density gradient and parallel flow shear

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M. Sasaki, N. Kasuya, K. Itoh, S. Toda, T. Yamada, Y. Kosuga, Y. Nagashima, T. Kobayashi, H. Arakawa, K. Yamasaki, A. Fujisawa, S. Inagaki, S.-I. Itoh
Journal: Physics of Plasmas
Phys. Plasmas 24, 112103 (2017)
https://doi.org/10.1063/1.5000343
Published: November 2017
View articletitled, Topological bifurcation of helical flows in magnetized plasmas with density gradient and parallel flow shear
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Journal Articles

Zonal flow generation in parallel flow shear driven turbulence

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Y. Kosuga, S.-I. Itoh, K. Itoh
Journal: Physics of Plasmas
Phys. Plasmas 24, 032304 (2017)
https://doi.org/10.1063/1.4978485
Published: March 2017
View articletitled, Zonal flow generation in parallel flow shear driven turbulence
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Journal Articles

A simple model for electron dissipation in trapped ion turbulence

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M. Lesur, T. Cartier-Michaud, T. Drouot, P. H. Diamond, Y. Kosuga, T. Réveillé, E. Gravier, X. Garbet, S.-I. Itoh, K. Itoh
Journal: Physics of Plasmas
Phys. Plasmas 24, 012511 (2017)
https://doi.org/10.1063/1.4974269
Published: January 2017
View articletitled, A simple model for electron dissipation in trapped ion turbulence
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Journal Articles

Structure formation in parallel ion flow and density profiles by cross-ferroic turbulent transport in linear magnetized plasma

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T. Kobayashi, S. Inagaki, Y. Kosuga, M. Sasaki, Y. Nagashima, T. Yamada, H. Arakawa, N. Kasuya, A. Fujisawa, S.-I. Itoh, K. Itoh
Journal: Physics of Plasmas
Phys. Plasmas 23, 102311 (2016)
https://doi.org/10.1063/1.4965915
Published: October 2016
View articletitled, Structure formation in parallel ion flow and density profiles by cross-ferroic turbulent transport in linear magnetized plasma
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Journal Articles

Observation of the inward propagation of spontaneous toroidal flow from the plasma boundary in LHD

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K. Kamiya, K. Ida, K. Itoh, S.-I. Itoh, M. Yoshinuma, M. Yokoyama, S. Kubo, H. Tsuchiya, N. Tamura, S. Masuzaki, C. Suzuki, T. Akiyama, LHD Experiment Group
Journal: Physics of Plasmas
Phys. Plasmas 23, 102309 (2016)
https://doi.org/10.1063/1.4965908
Published: October 2016
View articletitled, Observation of the inward propagation of spontaneous toroidal flow from the plasma boundary in LHD
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Journal Articles

A branch of energetic-particle driven geodesic acoustic modes due to magnetic drift resonance

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M. Sasaki, N. Kasuya, K. Itoh, K. Hallatschek, M. Lesur, Y. Kosuga, S.-I. Itoh
Journal: Physics of Plasmas
Phys. Plasmas 23, 102501 (2016)
https://doi.org/10.1063/1.4963397
Published: October 2016
View articletitled, A branch of energetic-particle driven geodesic acoustic modes due to magnetic drift resonance
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Journal Articles

Reconstruction of high temporal resolution Thomson scattering data during a modulated electron cyclotron resonance heating using conditional averaging

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T. Kobayashi, K. Ida, K. Itoh, M. Yoshinuma, C. Moon, S. Inagaki, I. Yamada, H. Funaba, R. Yasuhara, H. Tsuchiya, S. Ohdachi, Y. Yoshimura, H. Igami, T. Shimozuma, S. Kubo, T. I. Tsujimura
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 87, 043505 (2016)
https://doi.org/10.1063/1.4945258
Published: April 2016
View articletitled, Reconstruction of high temporal resolution Thomson scattering data during a modulated electron cyclotron resonance heating using conditional averaging
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Journal Articles

Study of toroidal flow generation by ion cyclotron range of frequency minority heating in the Alcator C-Mod plasma

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S. Murakami, K. Itoh, L. J. Zheng, J. W. Van Dam, P. Bonoli, J. E. Rice, C. L. Fiore, C. Gao, A. Fukuyama
Journal: Physics of Plasmas
Phys. Plasmas 23, 012501 (2016)
https://doi.org/10.1063/1.4939214
Published: January 2016
View articletitled, Study of toroidal flow generation by ion cyclotron range of frequency minority heating in the Alcator C-Mod plasma
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Journal Articles

Azimuthal inhomogeneity of turbulence structure and its impact on intermittent particle transport in linear magnetized plasmas

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T. Kobayashi, S. Inagaki, M. Sasaki, Y. Kosuga, H. Arakawa, T. Yamada, Y. Nagashima, Y. Miwa, N. Kasuya, A. Fujisawa, S.-I. Itoh, K. Itoh
Journal: Physics of Plasmas
Phys. Plasmas 22, 112301 (2015)
https://doi.org/10.1063/1.4934537
Published: November 2015
View articletitled, Azimuthal inhomogeneity of turbulence structure and its impact on intermittent particle transport in linear magnetized plasmas
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