Updated on 2024/12/06

Information

 

写真a

 
MOON CHANHO
 
Organization
Research Institute for Applied Mechanics Division of Nuclear Fusion Dynamics Associate Professor
Interdisciplinary Graduate School of Engineering Sciences Department of Interdisciplinary Engineering Sciences（Concurrent）
School of Engineering （Concurrent）
Research Center for Plasma Turbulence （Concurrent）
Title
Associate Professor
Contact information
メールアドレス
Tel
0925837722
Profile
Experimental research on plasma turbulence and transport.
External link

Research Areas

  • Energy Engineering / Nuclear fusion

  • Energy Engineering / Fundamental plasma

Degree

  • Ph. D. in Electronic Engineering

Research History

  • Kyushu University, Research Institute for Applied Mechanics Associate Professor

    2022.9 - Present

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  • Kyushu University Research Institute for Applied Mechanics Assistant Professor

    2019.3 - 2022.8

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  • サムスン電子 半導体研究所

    サムスン電子 半導体研究所

  • 大学共同利用機関法人 自然科学研究機構 核融合科学研究所, ドイツ マックス・プランクプラズマ物理学研究所

Research Interests・Research Keywords

  • Research theme：Non-Equilibrium Plasma Dynamics

    Keyword：Non-Equilibrium Plasma Dynamics

    Research period： 2024

  • Research theme：核融合学

    Keyword：核融合学

    Research period： 2024

  • Research theme：プラズマ理工学

    Keyword：プラズマ理工学

    Research period： 2024

  • Research theme：トカマク

    Keyword：トカマク

    Research period： 2024

  • Research theme：Dynamic Experiment of Plasma Turbulence Nonlinear Dynamic of Plasma Fluctuations

    Keyword：Plasma Turbulences Nonlinear Interaction

    Research period： 2019.4 - 2020.12

Awards

  • 若手奨励賞受賞

    2018.3   日本物理学会  

  • 平成25年度の東北大学大学院工学研究科長賞

    2014.3   東北大学 (博士課程後期課程)  

  • 若手学会発表賞

    2013.12   プラズマ・核融合学会第30回年会  

  • 学生優秀発表賞

    2013.9   日本物理学会2013年秋季大会  

  • 2013年度東北大学外国人留学生総長特別奨学生

    2013.4   東北大学  

  • 平成22年度の東北大学大学院工学研究科長賞

    2011.3   東北大学　(博士課程前期課程)  

  • 最優秀ポスター賞

    2010.8   2010年プラズマ若手夏の学校  

  • 優秀発表賞

    2010.6   第8回核融合エネルギー連合講演会  

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Papers

  • The first observation of 4D tomography measurement of plasma structures and fluctuations Invited Reviewed International journal

    Chanho Moon, Kotaro Yamasaki, Yoshihiko Nagashima, Shigeru Inagaki, Takeshi Ido, Takuma Yamada, Naohiro Kasuya, Yusuke Kosuga, Makoto Sasaki, Yuichi Kawachi, Daiki Nishimura, Taiki Kobayashi, and Akihide Fujisawa

    SCIENTIFIC REPORTS   11 ( 1 )   2021.2

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1038/s41598-021-83191-3

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

    Chanho Moon, Tatsuya Kobayashi, Katusmi Ida, Tokihiko Tokuzawa, Carlos Hidalgo, Mikirou Yoshinuma, Kunihiro Ogawa, Kimitakak Itoh, Akihide Fujisawa, and LHD Experiment Group

    Physics of Plasmas   2019.9

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    Language：English   Publishing type：Research paper (scientific journal)  

    Other Link： https://doi.org/10.1063/1.5098954

  • Effects of radial electric field on suppression of electron-temperature-gradient mode through multiscale nonlinear interactions Reviewed International journal

    Chanho Moon, Toshiro Kaneko, Kimitakak Itoh, Katusmi Ida, Tatsuya Kobayashi, Shigeru Inagaki, Saneae-I. Itoh, and Rikizo Hatakeyama

    Plasma Physics and Controlled Fusion   58   105007-1 - 105007-6   2016.8

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： https://doi.org/10.1088/0741-3335/58/10/105007

    Other Link： https://iopscience.iop.org/article/10.1088/0741-3335/58/10/105007/meta

  • MyView2, a new visualization software tool for analysis of LHD data Reviewed International journal

    Chanho Moon, Mikirou Yoshinuma, Masahiko Emoto, and Katsumi Ida

    Fusion Engineering and Design   104   56 - 60   2016.1

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： http://dx.doi.org/10.1016/j.fusengdes.2016.01.076

    Other Link： https://www.sciencedirect.com/science/article/pii/S092037961630076X

  • Ion Scale Nonlinear Interaction Triggered by Disparate Scale Electron Temperature Gradient Mode Reviewed International journal

    Chanho Moon, Tatsuya Kobayashi, Kimitaka Itoh, Rikizo Hatakeyama, and Toshiro Kaneko

    Physics of Plasmas   052301-1 - 052301-6   2015.5

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    DOI： http://dx.doi.org/10.1063/1.4919856

    Other Link： https://aip.scitation.org/doi/full/10.1063/1.4919856

  • Study of Nonlinear Behavior of Low-Frequency MHD mode Caused by Transition of Radial Electric Field in LHD Reviewed International journal

    Chanho Moon, Katsumi Ida, Tokihiko Tokuzawa, Kenji Tanaka, Mikirou Yoshinuma, Tatsuya Kobayashi, Shigeru Inagaki, Kimitaka Itoh, and LHD Experiment Group

    Journal of Plasma and Fusion Research   10   3402053-1 - 3402053-3   2015.4

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： https://doi.org/10.1585/pfr.10.3402053

    Other Link： https://www.jstage.jst.go.jp/article/pfr/10/0/10_3402053/_pdf/-char/ja

  • Dynamics of Nonlinear Coupling between Electron Temperature Gradient Mode and Drift Wave Mode in Linear Magnetized Plasmas Reviewed International journal

    Chanho Moon, Toshiro Kaneko, and Rikizo Hatakeyama

    Physical Review Letters   111 ( 11 )   115001-1 - 115001-4   2013.9

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： https://doi.org/10.1103/PhysRevLett.111.115001

    Other Link： https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.111.115001

  • Bispectral Analysis of Electron Temperature Gradient Mode and Drift Wave Mode in Linear Magnetized Plasma Reviewed

    Chanho Moon, Rikizo Hatakeyama, and Toshiro Kaneko

    The Papers of Technical Meeting on Plasma Science and Technology and Pulsed Power Technology, IEE Japan   1 - 4   2012.10

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  • Control of Electron Temperature and Space Potential Gradients by Superposition of Thermionic Electrons on Electron Cyclotron Resonance plasma Reviewed International journal

    Chanho Moon, Toshiro Kaneko, Shuichi Tamura, and Rikizo Hatakeyama

    Review of Scientific Instruments   81 ( 5 )   053506-1 - 053506-5   2010.5

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： https://doi.org/10.1063/1.3433553

    Other Link： https://aip.scitation.org/doi/10.1063/1.3433553

  • Microwave Electron Cyclotron Resonance Discharge Plasmas for Formation and Control of Electron Temperature Gradient Invited Reviewed International journal

    Chanho Moon, Shuichi Tamura, Toshiro Kaneko, and Rikizo Hatakeyama

    Proceeding of 7th International Workshop on Microwave Discharges (MD 7)   118 - 123   2010.5

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    Language：English   Publishing type：Research paper (international conference proceedings)  

  • Effects of Electron Temperature Gradient on High and Low Frequency Fluctuations in Magnetized Plasma Reviewed International journal

    Chanho Moon, Toshiro Kaneko, and Rikizo Hatakeyama

    Proceeding of the 3rd Student Organizing International Mini-Conference on Information Electronics Systems   1 - 2   2010.5

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  • Observation of Electron Temperature Gradient Driven Low-Frequency Instabilities in Magnetized Plasma Reviewed International journal

    Chanho Moon, Shuichi Tamura, Toshiro Kaneko, and Rikizo Hatakeyama

    Journal of Plasma and Fusion Research SERIES   9   436 - 440   2010.3

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： http://www.jspf.or.jp/JPFRS/index_vol9.html

    Other Link： http://www.jspf.or.jp/JPFRS/PDF/Vol9/jpfrs2010_09-436.pdf

  • On the Nonlinear Coupling of the High Wavenumber Fluctuations Exhibiting the Discrete Spectra Observed in PANTA

    KAWACHI Yuichi, SASAKI Makoto, NISHIZAWA Takashi, KOSUGA Yusuke, TERASAKA Kenichiro, INAGAKI Shigeru, YAMADA Takuma, KASUYA Naohiro, MOON Chanho, NAGASHIMA Yoshihiko, FUJISAWA Akihide

    Plasma and Fusion Research   19 ( 0 )   n/a - 2   2024.11   （ ISSN:1880-6821 eISSN:18806821 ）

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    Language：English   Publisher：The Japan Society of Plasma Science and Nuclear Fusion Research  

    <p>We report on the nonlinear coupling properties of high-wavenumber fluctuation, which exhibits discrete frequency spectra with a frequency span comparable to the ion cyclotron frequency observed in PANTA. Bicoherence analysis is used to investigate this nonlinear coupling. The results indicate a finite coupling between individual discrete peaks but no coupling between the ion cyclotron frequency components of these discrete peaks. This suggests that the observed turbulence with a discrete spectrum is destabilized linearly rather than through nonlinear coupling.</p>

    DOI： 10.1585/pfr.1201031

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  • Overview of Large Helical Device experiments of basic plasma physics for solving crucial issues in reaching burning plasma conditions

    Ida K., Yoshinuma M., Kobayashi M., Kobayashi T., Kenmochi N., Nespoli F., Magee R.M., Warmer F., Dinklage A., Matsuyama A., Sakamoto R., Nasu T., Tokuzawa T., Kinoshita T., Tanaka K., Tamura N., Nagaoka K., Nishiura M., Takemura Y., Ogawa K., Motojima G., Oishi T., Morishita Y., Varela J., Hayashi W.H.J., Markl M., Bouvain H., Liang Y., Leconte M., Moseev D., Moiseenko V.E., Albert C.G., Allfrey I., Alonso A., Arellano F.J., Ashikawa N., Azegami A., Bardoczi L., van Berkel M., Beurskens M., Binderbaue M.W., Bortolon A., Brezinsek S., Bussiahn R., Cappa A., Carralero D., Chan I.C., Cheng J., Dai X., Den Hartog D.J., Dhard C.P., Ding F., Ejiri A., Ertmer S., Fornal T., Fujita K., Fujiwara Y., Funaba H., Garcia L., Garcia-Regana J.M., Garcia-Cortés I., Garkusha I.E., Gates D.A., Ghai Y., Gilson E.P., Gota H., Goto M., Green E.M., Haak V., Hamaguchi S., Hanada K., Hara H., Hartmann D., Hayashi Y., Henning T., Hidalgo C., Hillairet J., Hutton R., Ido T., Igami H., Ikeda K., Inagaki S., Ishizawa A., Ito S., Isobe M., Isobe Y., Ivkovic M., Jiang Z., Jo J., Kamio S., Kasahara H., Kato D., Katoh Y., Kawachi Y., Kawamoto Y., Kawamura G., Kawate T., Kazakov Y.O., Klumper V., Knieps A.

    Nuclear Fusion   64 ( 11 )   2024.11   （ ISSN:00295515 eISSN:1741-4326 ）

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    Publisher：Nuclear Fusion  

    Recently, experiments on basic plasma physics issues for solving future problems in fusion energy have been performed on a Large Helical Device. There are several problems to be solved in future devices for fusion energy. Emerging issues in burning plasma are: alpha-channeling (ion heating by alpha particles), turbulence and transport in electron dominant heating helium ash exhaust, reduction of the divertor heat load. To solve these problems, understanding the basic plasma physics of (1) wave-particle interaction through (inverse) Landau damping, (2) characteristics of electron-scale (high-k) turbulence, (3) ion mixing and the isotope effect, and (4) turbulence spreading and detachment, is necessary. This overview discusses the experimental studies on these issues and turbulent transport in multi-ion plasma and other issues in the appendix.

    DOI： 10.1088/1741-4326/ad3a7a

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  • Identification of nonlinear effects of background asymmetry on solitary oscillations in a cylindrical plasma

    Taiki Kobayashi, Akihide Fujisawa, Yoshihiko Nagashima, Chanho Moon, Kotaro Yamasaki, Daiki Nishimura, Sigeru Inagaki, Akihiro Shimizu, Tokihiko Tokuzawa, Takeshi Ido

    Scientific Reports   14 ( 1 )   12175   2024.5   （ ISSN:2045-2322 eISSN:2045-2322 ）

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    Abstract

    A symmetry-breaking in rotational spatial pattern of quasi-periodic solitary oscillations is revealed with tomography measurement of plasma emission, simultaneously with background asymmetry in stationary plasma structure. Although the oscillatory pattern deformation is a natural course in the presence of asymmetry, elaborate analyses identify existence unfeatured nonlinear effects of the background asymmetry, i.e., its nonlinear couplings with harmonic modes of rotational symmetry, to produce non-harmonic mode to break the symmetry and cause the oscillatory pattern to be chaotic. The findings suggest the unrecognized fundamental process for plasmas to be turbulent.

    DOI： 10.1038/s41598-024-62969-1

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    Other Link： https://www.nature.com/articles/s41598-024-62969-1

  • Mass dependency of high-wavenumber turbulence in a linear partially magnetized plasma

    Kawachi, Y; Sasaki, M; Nishizawa, T; Kosuga, Y; Terasaka, K; Inagaki, S; Yamada, T; Kasuya, N; Moon, C; Nagashima, Y; Fujisawa, A

    PHYSICS OF PLASMAS   31 ( 4 )   2024.4   （ ISSN:1070-664X eISSN:1089-7674 ）

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    Publisher：Physics of Plasmas  

    We investigated the mass dependency of the high-wavenumber turbulence, which occurs at scales smaller than the ion effective Larmor radius, in a partially magnetized plasma column. In this system, two different types of fluctuations were observed: one exhibiting a coherent discrete spectrum, while the other displaying a broadband continuous spectrum. The phase velocities of both types showed a similar mass dependency, approximately matching the ion sound velocity or electron diamagnetic drift velocity. Additionally, we found that the discrete spectrum has a peak interval frequency comparable to the ion cyclotron frequency, which is consistent with ion cyclotron ranges of fluctuations, including ion Bernstein waves.

    DOI： 10.1063/5.0187997

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  • A Method to Analyze Plasma Images Using Modified Fourier-Bessel Functions

    NISHIMURA Yuki, FUJISAWA Akihide, NAGASHIMA Yoshihiko, MOON Chanho, NISHIZAWA Takashi, KOBAYASHI Tatsuya, SHIMIZU Akihiro, TOKUZAWA Tokihiko, IDO Takeshi, NISHIMURA Daiki, KOBAYASHI Taiki

    Plasma and Fusion Research   19 ( 0 )   1201014 - 1201014   2024.3   （ ISSN:1880-6821 eISSN:18806821 ）

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：The Japan Society of Plasma Science and Nuclear Fusion Research  

    <p>A new method is proposed to analyze plasma image of tomography using modified Fourier-Bessel Functions (FBF) instead of the original FBF analysis. The application of the method to an assumed plasma image shows that the difference between the original and the fitting image is improved considerably to that of FBF, owing to giving a better fitting inside the plasma and eliminating the ghost values outside the plasma, without any disadvantages in analysis of plasma structures and patterns.</p>

    DOI： 10.1585/pfr.19.1201014

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  • Velocity Field Estimation using Tomography in a Cylindrical Plasma

    NISHIMURA Daiki, FUJISAWA Akihide, NAGASHIMA Yoshihiko, MOON Chanho, YAMASAKI Kotaro, NISHIZAWA Takashi, KOBAYASHI Taiki, KOBAYASHI Tatsuya, SHIMIZU Akihiro, TOKUZAWA Tokihiko

    Plasma and Fusion Research   19 ( 0 )   1201005 - 1201005   2024.1   （ ISSN:1880-6821 eISSN:18806821 ）

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：The Japan Society of Plasma Science and Nuclear Fusion Research  

    <p>This article presents a new method, called extended Rotational Movement Analysis (e-RoMA), to estimate the velocity field of a cylindrical plasma from its two-dimensional images based on Fourier-Bessel function expansion. The proposed method is applied to tomography images of a plasma produced in a linear cylindrical device PANTA and succeeded in obtaining the two- dimensional velocity field. The first results suggest an issue to be investigated, that is, the presence of azimuthal asymmetry in the velocity field.</p>

    DOI： 10.1585/pfr.19.1201005

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  • Transition between continuous and discrete spectra of high-wavenumber turbulence in neutral gas pressure scan experiments on a linear magnetized plasma

    Yuichi Kawachi, Makoto Sasaki, Takashi Nishizawa, Yusuke Kosuga, Kenichiro Terasaka, Shigeru Inagaki, Takuma Yamada, Naohiro Kasuya, Chanho Moon, Yoshihiko Nagashima, Akihide Fujisawa

    Plasma Physics and Controlled Fusion   65 ( 11 )   115001 - 115001   2023.11   （ ISSN:0741-3335 eISSN:1361-6587 ）

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    Publishing type：Research paper (scientific journal)   Publisher：IOP Publishing  

    Abstract

    Spectral transition between continuous and discrete spectra has been observed in high-wavenumber turbulence excitation experiments. The transition appeared in neutral gas scanning, which shows that continuous spectra dominate at low gas pressures and discrete spectra dominate at high gas pressures. Both spectra have well smaller spatial scale than the ion effective Larmor radius. The discrete spectra have 6–11 peaks and maximum peak values at 4th or 5th peak. Correlation length analysis reveals that the continuous component is turbulent and the discrete component is coherent. The bicoherence analysis shows that the turbulent spectra have finite nonlinear coupling, whereas the discrete spectra have no corresponding coupling.

    DOI： 10.1088/1361-6587/acfbf7

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    Other Link： https://iopscience.iop.org/article/10.1088/1361-6587/acfbf7/pdf

  • Rotational movement analysis based on Fourier-rectangular function transform for cylindrical plasma Reviewed International journal

    D. Nishimura, A. Fujisawa, K. Yamasaki, Y. Nagashima, C. Moon, T. Nishizawa, T-K. Kobayashi, T. Kobayashi, A. Shimizu, T. Tokuzawa, and T. Ido

    Journal of Applied Physics   134 ( 11 )   2023.9   （ ISSN:0021-8979 eISSN:1089-7550 ）

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：AIP Publishing  

    This article presents a method to estimate the rotational velocity of a cylindrical plasma from its two-dimensional images by an extended use of the Fourier-rectangular function transform, which was proposed to analyze the structure and dynamics of a cylindrical plasma [K. Yamasaki etal., J. Appl. Phys. 126, 043304 (2019)]. The proposed method is applied to tomography images of plasmas produced in a linear cylindrical device and succeeds in obtaining the radial distribution of rotational velocity and its fluctuations, providing an interesting finding, that is, the existence of flow modulation associated with m=1 mode fluctuations.

    DOI： 10.1063/5.0165318

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  • A Proposal to Evaluate Electron Temperature and Electron Density Fluctuations Using Dual Wavelength Emission Intensity Tomography in a Linear Plasma Reviewed International journal

    Nagashima Y., Fujisawa A., Yamasaki K., Inagaki S., Moon C., Kin F., Kawachi Y., Arakawa H., Yamada T., Kobayashi T., Kasuya N., Kosuga Y., Sasaki M., Ido T.

    Journal of the Physical Society of Japan   92 ( 3 )   033501-1 - 033501-4   2023.3   （ ISSN:00319015 eISSN:13474073 ）

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Physical Society of Japan  

    DOI： 10.7566/JPSJ.92.033501

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  • Spatiotemporal dynamics of high-wavenumber turbulence in a basic laboratory plasma Reviewed International journal

    Kawachi Y., Sasaki M., Kosuga Y., Terasaka K., Nishizawa T., Yamada T., Kasuya N., Moon C., Inagaki S.

    Scientific Reports   12 ( 1 )   19799   2022.12   （ ISSN:2045-2322 ）

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：NATURE PORTFOLIO  

    High-spatial resolution observation of high-wavenumber broadband turbulence is achieved by controlling the magnetic field to be relatively low and measuring with a azimuthally arranged multi-channel Langmuir array in a basic laboratory plasma. The observed turbulence consists of narrowband low-frequency fluctuations and broadband high-frequency turbulent fluctuations. The low-frequency fluctuations have a frequency of about 0.7 times the ion cyclotron frequency and a spatial scale of 1/10 of the ion inertial scale. In comparison, high-frequency fluctuations have a higher frequency than the ion cyclotron frequency and spatial scales of 1/10-1/40 of the ion inertial scale. Two-dimensional correlation analysis evaluates the spatial and temporal correlation lengths and reveals that the high-wavenumber broadband fluctuations have turbulent characteristics. The measurements give us further understanding of small scale turbulence in space and fusion plasmas.

    DOI： 10.1038/s41598-022-23559-1

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  • 3D metal powder additive manufacturing phased array antenna for multichannel Doppler reflectometer Reviewed International journal

    Tokuzawa T., Nasu T., Inagaki S., Moon C., Ido T., Idei H., Ejiri A., Imazawa R., Yoshida M., Oyama N., Tanaka K., Ida K.

    Review of Scientific Instruments   93 ( 11 )   113535   2022.11   （ ISSN:0034-6748 eISSN:1089-7623 ）

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1063/5.0101723

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  • Non-parametric inference of impurity transport coefficients in the ASDEX Upgrade tokamak

    Nishizawa, T; Dux, R; McDermott, RM; Sciortino, F; Cavedon, M; Schuster, C; Wolfrum, E; von Toussaint, U; Van Vuuren, AJ; Cruz-Zabala, DJ; Cano-Megias, P; Moon, C

    NUCLEAR FUSION   62 ( 7 )   2022.7   （ ISSN:0029-5515 eISSN:1741-4326 ）

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    Publisher：Nuclear Fusion  

    We present a non-parametric inference of impurity transport coefficients by using charge exchange recombination spectroscopy measurements of Ne X, Ne VIII, O VIII, and C VI lines. Due to their close atomic numbers, neon, oxygen and carbon impurity ions are assumed to have the same diffusion coefficient D and convection velocity v. Unlike conventional techniques that modulate or perturb the impurity contents, we employ a quasi-stationary plasma with static impurity profiles. Since the ratio of v to D only describes the equilibrated profile of the sum of all impurity charge states, steady-state measurements can still decouple D and v if different charge states are simultaneously observed. We have formulated a non-parametric analysis framework based on the Bayesian probability theory and conducted transport coefficient measurements for a Type III ELMy H-mode plasma at ASDEX Upgrade. The charge exchange reactions with the background neutrals, which are known to affect the impurity charge state balance, are taken into account by introducing additional free parameters. While D at the pedestal is close to the neoclassical level ( < 1 m s-2), a large diffusion coefficient and a strong outward convection are inferred right inside the pedestal top.

    DOI： 10.1088/1741-4326/ac60e8

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  • Non-parametric inference of impurity transport coefficients in the ASDEX Upgrade tokamak Reviewed International journal

    T. Nishizawa, R. Dux, R.M. McDermott, F. Sciortino, M. Cavedon, C. Schuster, E. Wolfrum, U. von Toussaint, A.Jansen Van Vuuren, D.J. Cruz-Zabala, P. Cano-Megias, C. Moon, and the ASDEX Upgrade Team

    Nuclear Fusion   2022.3

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： https://doi.org/10.1088/1741-4326/ac60e8

  • Dynamic interaction between fluctuations with different origins in a linear magnetized plasma Reviewed International journal

    Y. Kawachi, S. Inagaki, M. Sasaki, Y. Kosuga, K. Yamasaki, T. Kobayashi, F. Kin, T. Yamada, H. Arakawa, Y. Nagashima, C. Moon, N. Kasuya, and A. Fujisawa,

    Physics of Plasmas   2021.11

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： doi: 10.1063/5.0065887

  • Conceptual design of heavy ion beam probes on the PLATO tokamak Reviewed International journal

    T. Ido, A. Fujisawa, K. Takemura, T.-K. Kobayashi, D. Nishimura, N. Kasuya, A. Fukuyama, C. Moon, K. Yamasaki, S. Inagaki, Y. Nagashima, and T. Yamada

    Review of Scientific Instruments   2021.5

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： https://doi.org/10.1063/5.0041814

  • Proposal of Analysis Method for Pattern Recognition of Two-Dimensional Structure of Plasma Reviewed International journal

    Taiki KOBAYASHI, Akihide FUJISAWA, Yoshihiko NAGASHIMA, Chanho MOON, Daiki NISHIMURA, Kotaro YAMASAKI, Shigeru INAGAKI

    Plasma and Fusion Research   2021.5

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： https://doi.org/10.1585/pfr.16.1201082

  • Effects of Electron Temperature Fluctuation on Turbulence Measurement by Langmuir Probe in a Magnetized Helicon Plasma Reviewed International journal

    Yuichi Kawachi, Shigeru Inagaki, Makoto Sasaki, Yusuke Kosuga, Takuma Yamada, Yoshihiko Nagashima, Chanho Moon, Naohiro Kasuya, Akihide Fujisawa

    Plasma and Fusion Research   2021.5

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： https://doi.org/10.1585/pfr.16.1202081

  • Fourier-Rectangular Function Analysis of Spatiotemporal Structure of Bursting Phenomenon in a Cylindrical Plasma Reviewed International journal

    Daiki Nishimura, Akihide Fujisawa, Yoshihiko Nagashima, Chanho Moon, Kotaro Yamasaki, Taiki Kobayashi, Shigeru Inagaki

    Plasma and Fusion Research   2021.4

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： https://doi.org/10.1585/pfr.16.1201075

  • Modal polarization analysis using Fourier-rectangular function transform in a cylindrical plasma Reviewed International journal

    D. Nishimura, A. Fujisawa, Y. Nagashima, C. Moon, K. Yamasaki, T.-K. Kobayashi, S. Inagaki, T. Yamada, Y. Kawachi, N. Kasuya, Y. Kosuga, and M. Sasaki

    Journal of Applied Physics   2021.3

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： doi: 10.1063/5.0037352

  • Correlation-estimated conditional average method and its application on solitary oscillation in PANTA Reviewed International journal

    T.-K. Kobayashi, A. Fujisawa, Y. Nagashima, C. Moon, K. Yamasaki, D. Nishimura, S. Inagaki, T. Yamada, N. Kasuya, Y. Kosuga, M. Sasaki, and Y. Kawachi

    Plasma Physics and Controlled Fusion   2021.1

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： https://doi.org/10.1088/1361-6587/abd980

  • Extension of the operational regime of the LHD towards a deuterium experiment Reviewed International journal

    Nuclear Fusion   57   102023-1 - 102023-10   2017.8

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： https://doi.org/10.1088/1741-4326/aa7fc2

  • Hysteresis and fast timescale in transport relation of toroidal plasmas Reviewed International journal

    K. Itoh, S.-I. Itoh, K. Ida, S. Inagaki, Y. Kamada, K. Kamiya, J. Q. Dong, C. Hidalgo, T. Evans, W. H. Ko, H. Park, T. Tokuzawa, S. Kubo, T. Kobayashi, Y. Kosuga, M. Sasaki, G. S. Yun, S. D. Song, N. Kasuya, Y. Nagashima, C. Moon, M. Yoshinuma, R. Makino, T. Tsujimura, H. Tsuchiya, and U. Stroth

    Nuclear Fusion   57   102021-1 - 102021-7   2017.7

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： https://doi.org/10.1088/1741-4326/aa796a

  • Overview of ASDEX Upgrade results Reviewed International journal

    A. Kallenbach for the ASDEX Upgrade Team (C. Moon) and the EUROfusion MST1 Team

    Nuclear Fusion   57   102015-1 - 102015-12   2017.6

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： https://doi.org/10.1088/1741-4326/aa64f6

  • Analysis of higher harmonics on bidirectional heat pulse propagation experiment in helical and tokamak plasmas Reviewed International journal

    Nuclear Fusion   57   076013-1 - 076013-6   2017.5

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： doi.org/10.1088/1741-4326/aa6f1f

  • Beam Emission spectroscopy with radially and poloidally elongated optical sightlines Reviewed International journal

    Makoto Ono, Katsumi Ida, Tatsuya Kobayashi, Mikiro Yoshinuma, Yukio Nakamura, Masashi Kisaki, Haruhisa Nakano, and Chanho Moon

    Review of Scientific Instruments   87   11E559-1 - 11E559-3   2016.10

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： http://dx.doi.org/10.1063/1.4963311

  • Abrupt onset of tongue deformation and phase space response of ions in magnetically-confined plasmas Reviewed International journal

    Scientific Reports   6   36217-1 - 36217-8   2016.10

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1038/srep36217

  • Helium transport in the core and stochastic edge layer in LHD Reviewed International journal

    K. Ida, M. Yoshinuma, M. Goto, O. Schmitz, S. Dai, A. Bader, M. Kobayashi, G. Kawamura, C. Moon, Y. Nakamura, and The LHD Experiment Group

    Plasma Physics and Controlled Fusion   11   074010-1 - 074010-7   2016.6

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1088/0741-3335/58/7/074010

  • Measurement of Spatiotemporal Structures of Density Fluctuations Using Two-Directional Beam Emission Spectroscopy in LHD Reviewed International journal

    Makoto Ono, Katsumi Ida, Mikiro Yoshinuma, Haruhisa Nakano, Tatsuya Kobayashi, and Chanho Moon

    Journal of Plasma and Fusion Research   11   1402115-1 - 1402115-3   2016.5

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1585/pfr.11.1402115

  • Reconstruction of high temporal resolution Thomson scattering data during a modulated electron cyclotron resonance heating using conditional averaging Invited Reviewed International journal

    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, and T. I. Tsujimura

    Review of Scientific Instruments   87   043505-1 - 043505-5   2016.4

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： http://dx.doi.org/10.1063/1.4945258

  • Measurement of Radial Profiles of Density Ratio of Helium to Hydrogen Ion using Charge Exchange Spectroscopy with Two-wavelength Spectrometer Invited Reviewed International journal

    Katsumi Ida, Mikirou Yoshinuma, Bernd Wieland, Motoshi Goto, Yukio Nakamura, Tatsuya Kobayashi, I. Murakami and Chanho Moon

    Review of Scientific Instruments   81   053506-1 - 053506-4   2015.12

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： http://dx.doi.org/10.1063/1.4939032

  • Development and application of a ray-tracing calculation system with 3D equilibrium mapping in the LHD ECH experiments Invited Reviewed International journal

    Tsukimura Li, S. Kubo, H. Takahashi, R. Makino, R. Seki, Y. Yoshimura, H. Igami, T. Shimozuma, K. Ida, C. Suzuki, M. Emoto, M. Yokoyama, T. Kobayashi, C. Moon, K. Nagaoka, M. Osakabe, S. Kobayashi, S. Ito, Y. Mizuno, K. Okada, A. Ejiri, T. Mutoh, and LHD Experiment Group

    Nuclear Fusion   55   123019-1 - 123019-12   2015.11

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1088/0029-5515/55/12/123019

  • Overview of transport and MHD stability study: focusing on the impact of magnetic field topology in the Large Helical Device Reviewed International journal

    K. Ida, K. Nagaoka, S. Inagaki, H. Kasahara, T. Evans, M. Yoshinuma, K. Kamiya, S. Ohdach, M. Osakabe, M. Kobayashi, S. Sudo, K. Itoh, T. Akiyama, M. Emoto, A. Dinklage, X. Du, K. Fujii, M. Goto, T. Goto, M. Hasuo, C. Hidalgo, K. Ichiguchi, A. Ishizawa, M. Jakubowski, G. Kawamura, D. Kato, S. Morita, K. Mukai, I. Murakami, S. Murakami, Y. Narushima, M. Nunami, N. Ohno, N. Pablant, S. Sakakibara, T. Seki, T. Shimozuma, M. Shoji, K. Tanaka1, T. Tokuzawa, Y. Todo, H. Wang, M. Yokoyama, H. Yamada, Y. Takeiri, T. Mutoh, S. Imagawa, T. Mito, Y. Nagayama, K.Y. Watanabe, N. Ashikawa, H. Chikaraishi, A. Ejiri, M. Furukawa, T. Fujita, S. Hamaguchi, H. Igami, M. Isobe, S. Masuzaki, T. Morisaki, G. Motojima, K. Nagasaki, H. Nakano, Y. Oya, C. Suzuki, Y. Suzuki, R. Sakamoto, M. Sakamoto, A. Sanpei, H. Takahashi, H. Tsuchiya, M. Tokitani, Y. Ueda, Y. Yoshimura, S. Yamamoto, K. Nishimura, H. Sugama, T. Yamamoto, H. Idei, A. Isayama, S. Kitajima, S. Masamune, K. Shinohara, P.S. Bawankar, E. Bernard, M. von Berkel, H. Funaba, X.L. Huang, T. Ii, T. Ido, K. Ikeda, S. Kamio, R. Kumazawa, T. Kobayashi, C. Moon, S. Muto, J. Miyazawa, T. Ming, Y. Nakamura, S. Nishimura, K. Ogawa, T. Ozaki, T. Oishi, M. Ohno, S. Pandya, A. Shimizu, R. Seki, R. Sano, K. Saito, H. Sakaue, Y. Takemura, K. Tsumori, N. Tamura, H. Tanaka, K. Toi, B. Wieland, I. Yamada, R. Yasuhara, H. Zhang, O. Kaneko, A. Komori and Collaborators

    Nuclear Fusion   55   104018-1 - 104018-10   2015.7

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1088/0029-5515/55/10/104018

  • Plasma Structure Control and New-Concept Plasma Process for Novel Nano-Bio Materials Reviewed International journal

    Toshiro Kaneko, Chanho Moon, and Shohei Takahashi

    The Proceedings of the 12th Asia Pacific Physics Conference, JPS Conf. Proc.   1   015054-1 - 015054-8   2014.1

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    Language：English   Publishing type：Research paper (international conference proceedings)  

    DOI： https://doi.org/10.7566/JPSCP.1.015054

  • Effects of EB Velocity Shears on High and Low Frequency Fluctuations Excited by Electron Temperature Gradient Reviewed International journal

    Toshiro Kaneko, Chanho Moon, and Rikizo Hatakeyama

    Proceedings of XXX URSI General Assembly and Scientific Symposium of International Union of Radio Science   1 - 4   2011.10

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    Language：English   Publishing type：Research paper (international conference proceedings)  

    DOI： 10.1109/URSIGASS.2011.6051088

  • Collisionless Drift Waves Ranging from Current-Driven, Shear-Modified, and Electron Temperature Gradient Modes Invited Reviewed International journal

    Rikizo Hatakeyama, Chanho Moon, Shuichi Tamura, and, Toshiro Kaneko

    Contributions to Plasma Physics   51   537 - 545   2010.9

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： https://doi.org/10.1002/ctpp.201010156

    Other Link： https://onlinelibrary.wiley.com/doi/epdf/10.1002/ctpp.201010156

  • Low and high frequency fluctuations excited by electron temperature gradient in magnetized plasma Reviewed International journal

    Chanho Moon, Toshiro Kaneko, and Rikizo Hatakeyama

    European Physical Society (EPS) 37th Conference on Plasma Physics   1070-1 - 1070-4   2010.5

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    Language：English   Publishing type：Research paper (scientific journal)  

  • Characteristic of rf H- ion source by using FETpower source”, AIP Conference Proceedings Reviewed International journal

    1097   291 - 296   2009.5

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    Language：English   Publishing type：Research paper (international conference proceedings)  

    DOI： http://dx.doi.org/10.1063/1.3112524

    Other Link： https://aip.scitation.org/doi/pdf/10.1063/1.3112524?class=pdf

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Presentations

  • Versatile Three-dimensional Tomographic Imaging System for the Plasma Turbulence Dynamic Studies International conference

    C. Moon, A. Fujisawa, Y. Nagashima, T-K Kobayashi, and D. Nishimura

    The 5th Asia-Pacific Conference on Plasma Physics  2021.10 

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    Event date： 2021.9 - 2021.10

    Language：English   Presentation type：Oral presentation (general)  

    Country：Japan  

  • 四次元トモグラフィ計測を用いた直線プラズマのダイナミクス観測

    文 贊鎬, 稲垣 滋, 永島 芳彦, 山田 琢磨, 糟谷 直宏, 小菅 佑輔, 小林 大輝, 西村 大輝, 山崎 広太郎，藤澤 彰英

    プラズマ・核融合学会  2022.11 

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    Event date： 2022.11

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：オンライン 催   Country：Japan  

  • Versatile Three-dimensional Tomographic Imaging System for the Plasma Turbulence Dynamic Studies International conference

    C. Moon, A. Fujisawa, Y. Nagashima, T-K Kobayashi, and D. Nishimura

    5th Asia-Pacific Conference on Plasma Physics  2022.10 

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    Event date： 2022.9 - 2022.10

    Language：English   Presentation type：Oral presentation (general)  

    Country：Japan  

  • Verification of ETG mode Energy Transfer to Drift-Wave mode through Multiscale Nonlinear Interactions International conference

    Chanho Moon, Toshiro Kaneko, Shigeru Inagaki, Akihide Fujisawa, and Rikizo Hatakeyama

    9th Asia Pacific Transport Working Group (APTWG) International Conference  2021.7 

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    Event date： 2021.7

    Language：English   Presentation type：Oral presentation (general)  

    Country：Japan  

  • ４次元トモグラフィ、プラズマの特異な挙動を観測

    文 贊鎬

    2021RIAMフォーラム  2021.6 

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    Event date： 2021.6

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Japan  

  • 磁化プラズマ中電子温度勾配不安定性の研究 Invited

    文贊鎬

    日本物理学会第73回年次大会  2018.3 

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    Event date： 2019.10

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東京   Country：Japan  

  • Generation of supersonic and super-Alfvenic flow with an open magnetic field Invited International conference

    Akira Ando, Chanho Moon, Shingo Jo, and Takahiro Taguchi

    7th International Conference on Open Magnetic System for Plasma Confinement (OS 2008)  2008.7 

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    Event date： 2019.10

    Language：English   Presentation type：Oral presentation (general)  

    Country：Korea, Republic of  

  • Collisionless Drift Waves Ranging from Current-Driven, Shear-Modified, and Electron-Temperature-Gradient Modes Invited International conference

    Rikizo Hatakeyama, Chanho Moon, Shuichi Tamura, and Toshiro Kaneko

    8th International Workshop on Electric Probes in Magnetized Plasmas & International Workshop  2009.9 

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    Event date： 2019.10

    Language：English   Presentation type：Oral presentation (general)  

    Country：Austria  

  • 基礎プラズマ実験装置による磁化プラズマ揺動非線形結合解析 Invited

    金子 俊郎， 文 贊鎬， 畠山 力三

    第16回若手科学者によるプラズマ研究会  2013.3 

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    Event date： 2019.10

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：那珂市   Country：Japan  

  • 電子温度勾配モードとドリフト波モードのマルチスケール非線形結合機構解明 Invited

    金子 俊郎， 文 贊鎬， 畠山 力三

    応用力学研究所RIAMフォーラム2013  2013.6 

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    Event date： 2019.10

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：春日市   Country：Japan  

  • 直線磁化プラズマにおける電子温度勾配揺動の観測 Invited

    文贊鎬， 畠山 力三， 金子 俊郎

    日本物理学会2013年秋季大会  2013.9 

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    Event date： 2019.10

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：徳島大学， 徳島市   Country：Japan  

  • Dynamics of Nonlinear Interactions between Electron Temperature Gradient Mode and Ion-scale Fluctuatios in Linear Magnetized Plasmas Invited International conference

    Chanho Moon, Kimitaka Itoh, Rikizo Hatakeyama, and Toshiro Kaneko

    Electric Fields, Turbulence and Self-Organisation in Magnetised Plasmas 2015 (EFTSOMP)  2015.5 

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    Event date： 2019.10

    Language：English   Presentation type：Oral presentation (general)  

    Country：Portugal  

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MISC

  • Estimation of normalized electron temperature and electron density fluctuations using emission signal tomography

    永島芳彦, 永島芳彦, 藤澤彰英, 藤澤彰英, 山崎広太郎, 稲垣滋, MOON C., MOON C., 金史良, 河内裕一, 荒川弘之, 山田琢磨, 山田琢磨, 小林達哉, 糟谷直宏, 糟谷直宏, 小菅佑輔, 小菅佑輔, 佐々木真, 井戸毅

    日本物理学会講演概要集(CD-ROM)   77 ( 2 )   2022   （ ISSN:2189-079X ）

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Professional Memberships

  • The Japanese Society of Plasma Science and Nuclear Fusion Research

  • Japanese Physic Society

  • THE PHYSICAL SOCIETY OF JAPAN

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  • プラズマ核融合学会

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Academic Activities

  • Screening of academic papers

    Role(s)： Peer review

    2022

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    Type：Peer review 

    Number of peer-reviewed articles in foreign language journals：3

  • Screening of academic papers

    Role(s)： Peer review

    2021

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    Type：Peer review 

    Number of peer-reviewed articles in foreign language journals：6

  • Screening of academic papers

    Role(s)： Peer review

    2020

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    Type：Peer review 

    Number of peer-reviewed articles in foreign language journals：4

  • Screening of academic papers

    Role(s)： Peer review

    2019

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    Type：Peer review 

    Number of peer-reviewed articles in foreign language journals：3

Research Projects

  • Simultaneous measurement of turbulent transport characteristics on the high and low field side in edge tokamak plasma

    Grant number：21K13898  2021 - 2023

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Early-Career Scientists

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    Authorship：Principal investigator  Grant type：Scientific research funding

    CiNii Research

  • 磁化プラズマ中電子温度勾配不安定性駆動乱流に対する帯状流の抑制効果の検証

    Grant number：19K23426  2019 - 2020

    日本学術振興会  科学研究費助成事業  研究活動スタート支援

    文 贊鎬

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    Authorship：Principal investigator  Grant type：Scientific research funding

    核融合プラズマ閉じ込め装置における異常輸送の新たな要因として注目を集めている「電子温度勾配（ETG）不安定性（ETGモード）駆動乱流の抑制機構」を解明することが，経済的な核融合発電実現の観点から重要な課題である．一方，理論やシミュレーションの研究では，ETGモードの非線形過程により巨視的な帯状流（Zonal Flow）が発生し，それによってミクロスケールのETGモードが抑制されると予測している. そこで本研究では，磁力線に垂直方向の電子温度勾配を自在に制御できるように九州大学の小型直線装置PANTAを改良して，ETGモードの非線形過程に起因するZonal Flowを実験的に検証する.

    CiNii Research

  • 指向性をもつビーム放射分光法によるメゾスケール乱流の二次元空間構造の研究

    Grant number：23246164  2011 - 2015

    日本学術振興会  科学研究費助成事業  基盤研究(A)

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    Authorship：Coinvestigator(s)  Grant type：Scientific research funding

  • 磁化プラズマ中電子温度勾配による異周波数結合不安定性励起機構解明

    2011 - 2013

    日本学術振興会  特別研究員

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    Authorship：Principal investigator  Grant type：Joint research

Class subject

  • プラズマ理工学演習

    2024.10 - 2024.12   Fall quarter

  • データ解析学

    2024.6 - 2024.8   Summer quarter

  • プラズマ理工学演習

    2023.10 - 2023.12   Fall quarter

  • データ解析学

    2023.6 - 2023.8   Summer quarter

  • プラズマ理工学演習

    2022.10 - 2022.12   Fall quarter

  • プラズマ理工学演習

    2021.10 - 2021.12   Fall quarter

  • 少人数セミナー: プラズマ物理学概論

    2019.6 - 2019.8   Summer quarter

  • プラズマ理工学演習

    2024.10 - 2025.3   Second semester

  • データ解析学

    2024.4 - 2024.6   Spring quarter

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Outline of Social Contribution and International Cooperation activities

  • R4オープンキャンパス：
    (触るプラズマを実演, 大野城市のダンスショーと科学実験のコラボを大成功）

Media Coverage

  • ４次元トモグラフィ計測器でプラズマの特異な挙動観測 Newspaper, magazine

    科学新聞  2021.3

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    ４次元トモグラフィ計測器でプラズマの特異な挙動観測