Updated on 2025/01/07

Information

 

写真a

 
ISAYAMA SHOGO
 
Organization
Faculty of Engineering Sciences Department of Advanced Environmental Science and Engineering Assistant Professor
School of Engineering （Concurrent）
Interdisciplinary Graduate School of Engineering Sciences Department of Interdisciplinary Engineering Sciences（Concurrent）
Title
Assistant Professor
Contact information
メールアドレス
Tel
0925838602
Profile
高周波プラズマ源、レーザーによる粒子加速、高エネルギー宇宙物理に関する理論、数値計算、実験を用いた研究を専門とする。
External link

Degree

  • Doctor of science

Research Interests・Research Keywords

  • Research theme： High Power Laser Experiment of Collisionless Shock

    Keyword： Laboratory Astrophysics, Collisionless Shock,High-power Laser

    Research period： 2020.7 - 2020.8

  • Research theme： Controlled injection of relativistic ion in wakefield acceleration

    Keyword： Laser Driven Ion Acceleration, Laser Wake-field Acceleration

    Research period： 2017.5 - 2020.8

  • Research theme： Spatio-Temporal behavior of the high-density helicon plasma produciton

    Keyword： Radio-Frequency Plasma, Helicon plasma

    Research period： 2010.4 - 2020.8

Awards

  • 第26回論文賞

    2018.12   プラズマ・核融合学会  

Papers

  • Acceleration of Relativistic Particles in Counterpropagating Circularly Polarized Alfvén Waves Invited Reviewed International journal

    S. Isayama, K. Takahashi, S. Matsukiyo, T. Sano

    The Astrophysical Journal   946 ( 2 )   68   2023.3   （ ISSN:0004-637X eISSN:1538-4357 ）

    　More details

    Language：English   Publisher：Astrophysical Journal  

    Counterpropagating Alfvén waves are ubiquitously observed in many astrophysical environments, such as a star surface and a planetary foreshock. We discuss an efficient particle acceleration mechanism in two counterpropagating circularly polarized Alfvén waves. Phase transitions of particle behavior occur when wave amplitudes exceed two critical values. Above the critical amplitudes, the numerical simulation shows that any particles irreversibly gain relativistic energy within a short time regardless of their initial position and energy once the coherent waveform is formed. The accelerated particles have spatial coherence. Higher wave phase velocity requires smaller critical amplitudes, while the maximum attainable energy increases as the wavenumber and the frequency decrease. The results may be applicable in some astrophysical phenomena, as well as a future laboratory experiment using high-power lasers.

    DOI： 10.3847/1538-4357/acbb6d

    Web of Science

    Scopus

    researchmap

  • Ion-acoustic feature of collective Thomson scattering in non-equilibrium two-stream plasmas Invited Reviewed International journal

    Sakai, K., Nishimoto, T., Isayama, S., Matsukiyo, S. & Kuramitsu, Y.

    Physics of Plasmas   30 ( 1 )   012105   2023.1

    　More details

    Language：English  

  • Ion-acoustic feature of collective Thomson scattering in non-equilibrium two-stream plasmas Invited Reviewed International journal

    Sakai, K., Nishimoto, T., Isayama, S., Matsukiyo, S. & Kuramitsu, Y.

    Physics of Plasmas   30 ( 1 )   012105   2023.1

    　More details

    Language：English  

    researchmap

  • Mass-resolved ion measurement by particle counting analysis for characterizing relativistic ion beams driven by lasers Invited Reviewed International journal

    T. Minami, A. O. Tokiyasu, H. Kohri, Y. Abe K. Iwasaki, T. Taguchi, K. Oda, S. Suzuki, T. Asai, S. J. Tanaka, S. Isayama, M. Kanasaki, S. Kodaira, Y. Fukuda, and Y. Kuramitsu

    Review of Scientific Instruments   93 ( 11 )   113530   2022.9   （ ISSN:0034-6748 eISSN:1089-7623 ）

    　More details

    Language：English   Publisher：Review of Scientific Instruments  

    Particle counting analysis is a possible way to characterize GeV-scale, multi-species ions produced in laser-driven experiments. We present a multi-layered scintillation detector to differentiate multi-species ions of different masses and energies. The proposed detector concept offers potential advantages over conventional diagnostics in terms of (1) high sensitivity to GeV ions, (2) realtime analysis, and (3) the ability to differentiate ions with the same charge-to-mass ratio. A novel choice of multiple scintillators with different ion stopping powers results in a significant difference in energy deposition between the scintillators, allowing accurate particle identification in the GeV range. Here, we report a successful demonstration of particle identification for heavy ions, performed at the Heavy Ion Medical Accelerator in Chiba. In the experiment, the proposed detector setup showed the ability to differentiate particles with similar atomic numbers, such as C6+ and O8+ ions, and provided an excellent energy resolution of 0.41%-1.2% (including relativistic effect, 0.51% - 1.6%).

    DOI： 10.1063/5.0101872

    Web of Science

    Scopus

    PubMed

    researchmap

  • Robustness of large-area suspended graphene under interaction with intense laser Invited Reviewed International journal

    Kuramitsu Y., Minami, T., Hihara T., Sakai K., Nishimoto T., Isayama S., Liao Y. T., Wu K. T., Woon W. Y., Chen S. H., Liu Y. L., He S. M., Su C. Y., Ota M., Egashira S., Morace A., Sakawa Y., Abe Y., Habara H., Kodama R., Döhl L. N. K., Woolsey N., Koenig M., Kumar H. S., Ohnishi N., Kanasaki M., Asai T., Yamauchi T., Oda K., Kondo Ko., Kiriyama H., Fukuda, Y.

    Scientific Reports   12 ( 1 )   2346   2022.2   （ ISSN:2045-2322 ）

    　More details

    Language：English   Publisher：Scientific Reports  

    Graphene is known as an atomically thin, transparent, highly electrically and thermally conductive, light-weight, and the strongest 2D material. We investigate disruptive application of graphene as a target of laser-driven ion acceleration. We develop large-area suspended graphene (LSG) and by transferring graphene layer by layer we control the thickness with precision down to a single atomic layer. Direct irradiations of the LSG targets generate MeV protons and carbons from sub-relativistic to relativistic laser intensities from low contrast to high contrast conditions without plasma mirror, evidently showing the durability of graphene.

    DOI： 10.1038/s41598-022-06055-4

    Web of Science

    Scopus

    PubMed

    researchmap

  • Efficient hybrid acceleration scheme for generating 100 MeV protons with tabletop dual-laser pulses Reviewed International journal

    S. Isayama, S. H. Chen2, Y. L. Liu, H. W. Chen and Y. Kuramitsu

    Physics of Plasmas   28   073101   2021.6

    　More details

    Language：English  

    DOI： 10.1063/5.0049725

  • Collective Thomson scattering in non-equilibrium laser produced two-stream plasmas Reviewed International journal

    Sakai, K., Isayama, S., Bolouki, N., Habibi, M. S., Liu, Y. L., Hsieh, Y. H., Chu, H. H., Wang, J., Chen, S. H., Morita, T., Tomita, K., Yamazaki, R., Sakawa, Y., Matsukiyo, S. & Kuramitsu, Y.

    Physics of Plasmas   27 ( 10 )   103104   2020.10

    　More details

    Language：English  

    DOI： 10.1063/5.0011935

  • Collective Thomson scattering measurements of electron feature using stimulated Brillouin scattering in laser-produced plasmas Reviewed International journal

    N. Bolouki, K. Sakai, T. Y. Huang, S. Isayama, Y. L. Liu, C. W. Peng, C. H. Chen, N. Khasanah, H. H. Chu, T. Moritaka, K. Tomita, Y. Sato, K. Uchino, T. Morita, S. Matsukiyo, Y. Hara, H. Shimogawara, Y Sakawa, S. Sakata, S. Kojima, S. Fujioka, Y. Shoji, S. Tomiya, R. Yamazaki, M. Koenig, Y. Kuramitsu

    High Energy Density Physics   32   82   2019.7

    　More details

    Language：English  

  • Spatio-temporal behavior of density jumps and the effect of neutral depletion in high-density helicon plasma. Reviewed International journal

    S. Isayama, S. Shinohara, T. Hada, S. H. Chen

    Physics of Plasmas   26   053504   2019.4

    　More details

    Language：English  

  • Nonthermal relativistic electron acceleration due to laser-induced incoherent wakefields with external static magnetic fields. Reviewed International journal

    Y. L. Liu, S. H. Chen, S. Isayama, and Y. Kuramitsu

    High Energy Density Physics   31   64   2019.3

    　More details

    Language：English  

  • Underlying competition mechanisms in the dynamic profile formation of high-density helicon plasma. Reviewed International journal

    S. Isayama, S. Shinohara, T. Hada, and S. H. Chen

    Physics of Plasmas   26   023517   2019.2

    　More details

    Language：English  

  • Review of Helicon High-Density Plasma: Production Mechanism and Plasma/Wave Characteristics. Plasma and Fusion Research Reviewed International journal

    S. Isayama, S. Shinohara, and T. Hada

    Plasma and Fusion Research   13   1101014   2018.2

    　More details

    Language：English  

  • Radiation pressure injection in laser-wakefield acceleration. Reviewed International journal

    Y. L. Liu, Y. Kuramitsu, S. Isayama, and S. H. Chen

    Physics of Plasmas   25   013110   2018.1

    　More details

    Language：English  

  • Spherical shock in the presence of an external magnetic field. Reviewed International journal

    Y Kuramitsu, S Matsukiyo, S Isayama, D Harada, T Oyama, R Fujino, Y Sakawa, T Morita, Y Yamaura, T Ishikawa, T Moritaka, T Sano, K Tomita, R Shimoda, Y Sato, K Uchino, A Pelka, R Crowston, N Woolsey, G Gregori, M Koenig, D W Yuan, C L Yin, Y T Li, K Zhang, J Y Zhong, F L Wang, N Ohnishi, K Nagamine, H Yoneda, and H Takabe.

    Journal of Physics: Conference Series   688   012056   2016.11

    　More details

    Language：English  

  • Is the bulk mode conversion important in high density helicon plasma? Reviewed International journal

    S. Isayama, T. Hada, S. Shinohara and T. Tanikawa

    Physics of Plasmas   23   063513   2016.6

    　More details

    Language：English  

  • Mechanism of generating collisionless shock in magnetized gas plasma driven by laser-ablated target plasma

    Matsukiyo, S; Oshida, K; Isayama, S; Yamazaki, R; Morita, T; Takezaki, T; Kuramitsu, Y; Tanaka, SJ; Sano, T; Tomita, K; Sakawa, Y

    PHYSICS OF PLASMAS   31 ( 11 )   2024.11   （ ISSN:1070-664X eISSN:1089-7674 ）

    　More details

  • Research progress and remarks on helicon plasma: a report on the Second Helicon Plasma Physics and Applications Workshop

    Chang, L; Boswell, R; Scime, E; Shinohara, S; Takahashi, K; Thakur, S; Filleul, F; Caldarelli, A; Isayama, S; Yu, Y; Xu, M; Zhang, HB; Huang, TY; Wu, MY; Wu, JT; Xia, BH; Lu, LF; Sun, AP; Du, D; Zhang, ZY; Yuan, RX; Xu, AD; Yang, X; Jing, D; Xia, Y; Wang, C; Zhang, YW; Wu, XS; Yang, ZY; Sun, YZ

    REVIEWS OF MODERN PLASMA PHYSICS   8 ( 1 )   2024.10   （ ISSN:2367-3192 ）

    　More details

    Publisher：Reviews of Modern Plasma Physics  

    Following the First Helicon Plasma Physics and Applications (HPPA) Workshop, which was held in 2021 remotely due to COVID-19, this Second HPPA Workshop aimed to establish a regular onsite meeting for the specific field of helicon plasma. It was held on 11–14 April 2024 in Chongqing, China, and organized by Chongqing University and co-organized by Southwestern Institute of Physics. This workshop attracted ~ 160 registrations, ~ 140 onsite participants, and ~ 27,000 number of views through the live streaming online. The 48 presentations covered most topics about helicon plasma, e.g., from fundamental physics to various applications. This paper summarizes the important findings of fundamental physics research, progresses on source and diagnostic developments, and new explorations of laboratory and industrial applications, together with enlightening comments and perspectives regarding future research for this field. It serves as a valuable reference for the helicon research community and other relevant fields.

    DOI： 10.1007/s41614-024-00171-6

    Web of Science

    Scopus

  • Optimization of laser-driven quantum beam generation and the applications with artificial intelligence

    Kuramitsu, Y; Taguchi, T; Nikaido, F; Minami, T; Hihara, T; Suzuki, S; Oda, K; Kuramoto, K; Yasui, T; Abe, Y; Ibano, K; Takabe, H; Chu, CM; Wu, KT; Woon, WY; Chen, SH; Jao, CS; Chen, YC; Liu, YL; Morace, A; Yogo, A; Arikawa, Y; Kohri, H; Tokiyasu, A; Kodaira, S; Kusumoto, T; Kanasaki, M; Asai, T; Fukuda, Y; Kondo, K; Kiriyama, H; Hayakawa, T; Tanaka, SJ; Isayama, S; Watamura, N; Suzuki, H; Kumar, HS; Ohnishi, N; Pikuz, T; Filippov, E; Sakai, K; Yasuhara, R; Nakata, M; Ishikawa, R; Hoshi, T; Mizuta, A; Bolouki, N; Saura, N; Benkadda, S; Koenig, M; Hamaguchi, S

    PHYSICS OF PLASMAS   31 ( 5 )   2024.5   （ ISSN:1070-664X eISSN:1089-7674 ）

    　More details

  • Advancements in neural network techniques for electric and magnetic field reconstruction: Application to ion radiography

    Jao, CS; Chen, YC; Nikaido, F; Liu, YL; Sakai, K; Minami, T; Isayama, S; Abe, Y; Kuramitsu, Y

    AIP ADVANCES   14 ( 2 )   2024.2   （ eISSN:2158-3226 ）

    　More details

    Publisher：AIP Advances  

    In the realm of high-energy-density laboratory plasma experiments, ion radiography is a vital tool for measuring electromagnetic fields. Leveraging the deflection of injected protons, ion imaging can reveal the intricate patterns of electromagnetic fields within the plasma. However, the complex task of reconstructing electromagnetic fields within the plasma system from ion images presents a formidable challenge. In response, we propose the application of neural network techniques to facilitate electromagnetic field reconstructions. For the training data, we generate corresponding particle data on ion radiography with diverse field profiles in the plasma system, drawing from analytical solutions of charged particle motions and test-particle simulations. With these training data, our expectation is that the developed neural network can assimilate information from ion radiography and accurately predict the corresponding field profiles. In this study, our primary emphasis is on developing these techniques within the context of the simplest setups, specifically uniform (single-layer) or two-layer systems. We begin by examining systems with only electric or magnetic fields and subsequently extend our exploration to systems with combined electromagnetic fields. Our findings demonstrate the viability of employing neural networks for electromagnetic field reconstructions. In all the presented scenarios, the correlation coefficients between the actual and neural network-predicted values consistently reach 0.99. We have also learned that physics concepts can help us understand the weaknesses in neural network performance and identify directions for improvement.

    DOI： 10.1063/5.0189878

    Web of Science

    Scopus

  • Advancements in neural network techniques for electric and magnetic field reconstruction: Application to ion radiography Invited Reviewed International journal

    Jao, C. S., Chen, Y. C., Nikaido, F., Liu, Y. L., Sakai, K., Minami, T., Isayama, S., Abe, Y. & Kuramitsu, Y.

    AIP Advances.   14 ( 2 )   025037   2024.2

    　More details

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

  • Deep learning approaches for modeling laser-driven proton beams via phase-stable acceleration Invited Reviewed International journal

    Liu, Y. L., Chen, Y. C., Jao, C. S., Wong, M. S., Huang, C. H., Chen, H. W., Isayama, S. & Kuramitsu, Y.

    Physics of Plasmas.   31 ( 1 )   013106   2024.1

    　More details

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

  • Deep learning approaches for modeling laser-driven proton beams via phase-stable acceleration

    Liu, YL; Chen, YC; Jao, CS; Wong, MS; Huang, CH; Chen, HW; Isayama, S; Kuramitsu, Y

    PHYSICS OF PLASMAS   31 ( 1 )   2024.1   （ ISSN:1070-664X eISSN:1089-7674 ）

    　More details

    Publisher：Physics of Plasmas  

    Deep learning (DL) has recently become a powerful tool for optimizing parameters and predicting phenomena to boost laser-driven ion acceleration. We developed a neural network surrogate model using an ensemble of 355 one-dimensional particle-in-cell simulations to validate the theory of phase-stable acceleration (PSA) driven by a circularly polarized laser driver. Our DL predictions confirm the PSA theory and reveal a discrepancy in the required target density for stable ion acceleration at larger target thicknesses. We discuss the physical reasons behind this density underestimation based on our DL insights.

    DOI： 10.1063/5.0178238

    Web of Science

    Scopus

  • Ion-acoustic feature of collective Thomson scattering in non-equilibrium two-stream plasmas

    Sakai, K; Nishimoto, T; Isayama, S; Matsukiyo, S; Kuramitsu, Y

    PHYSICS OF PLASMAS   30 ( 1 )   2023.1   （ ISSN:1070-664X eISSN:1089-7674 ）

    　More details

    Publisher：Physics of Plasmas  

    We theoretically and numerically investigate the ion-acoustic features of collective Thomson scattering (CTS) in two-stream plasmas. When the electron distribution functions of two (stationary and moving) components overlap with each other at the phase velocities corresponding to the two resonant peaks of the ion-acoustic feature, the theoretical spectrum shows asymmetry because the rate of electron Landau damping is different for the two peaks. The results of numerical simulations agree well with the theoretical spectra. We also demonstrate the effect of a two-stream-type instability in the ion-acoustic feature. The simulated spectrum in the presence of the instability shows an asymmetry with the opposite trend to the overlapped case, which results from the temporal change of the electron distribution function caused by the instability. Our results show that two-stream plasmas have significant effects on CTS spectra and that the waves resulting from instabilities can be observed in the ion-acoustic feature.

    DOI： 10.1063/5.0117812

    Web of Science

    Scopus

  • Detection of current-sheet and bipolar ion flows in a self-generated antiparallel magnetic field of laser-produced plasmas for magnetic reconnection research

    Morita, T; Kojima, T; Matsuo, S; Matsukiyo, S; Isayama, S; Yamazaki, R; Tanaka, SJ; Aihara, K; Sato, Y; Shiota, J; Pan, Y; Tomita, K; Takezaki, T; Kuramitsu, Y; Sakai, K; Egashira, S; Ishihara, H; Kuramoto, O; Matsumoto, Y; Maeda, K; Sakawa, Y

    PHYSICAL REVIEW E   106 ( 5 )   055207   2022.11   （ ISSN:2470-0045 eISSN:2470-0053 ）

    　More details

    Language：English   Publisher：Physical Review E  

    Magnetic reconnection in laser-produced magnetized plasma is investigated by using optical diagnostics. The magnetic field is generated via the Biermann battery effect, and the inversely directed magnetic field lines interact with each other. It is shown by self-emission measurement that two colliding plasmas stagnate on a midplane, forming two planar dense regions, and that they interact later in time. Laser Thomson scattering spectra are distorted in the direction of the self-generated magnetic field, indicating asymmetric ion velocity distribution and plasma acceleration. In addition, the spectra perpendicular to the magnetic field show different peak intensity, suggesting an electron current formation. These results are interpreted as magnetic field dissipation, reconnection, and outflow acceleration. Two-directional laser Thomson scattering is, as discussed here, a powerful tool for the investigation of microphysics in the reconnection region.

    DOI： 10.1103/PhysRevE.106.055207

    Web of Science

    Scopus

    PubMed

  • High-power laser experiment on developing supercritical shock propagating in homogeneously magnetized plasma of ambient gas origin

    Matsukiyo, S; Yamazaki, R; Morita, T; Tomita, K; Kuramitsu, Y; Sano, T; Tanaka, SJ; Takezaki, T; Isayama, S; Higuchi, T; Murakami, H; Horie, Y; Katsuki, N; Hatsuyama, R; Edamoto, M; Nishioka, H; Takagi, M; Kojima, T; Tomita, S; Ishizaka, N; Kakuchi, S; Sei, S; Sugiyama, K; Aihara, K; Kambayashi, S; Ota, M; Egashira, S; Izumi, T; Minami, T; Nakagawa, Y; Sakai, K; Iwamoto, M; Ozaki, N; Sakawa, Y

    PHYSICAL REVIEW E   106 ( 2 )   025205   2022.8   （ ISSN:2470-0045 eISSN:2470-0053 ）

    　More details

    Language：English   Publisher：Physical Review E  

    A developing supercritical collisionless shock propagating in a homogeneously magnetized plasma of ambient gas origin having higher uniformity than the previous experiments is formed by using high-power laser experiment. The ambient plasma is not contaminated by the plasma produced in the early time after the laser shot. While the observed developing shock does not have stationary downstream structure, it possesses some characteristics of a magnetized supercritical shock, which are supported by a one-dimensional full particle-in-cell simulation taking the effect of finite time of laser-Target interaction into account.

    DOI： 10.1103/PhysRevE.106.025205

    Web of Science

    Scopus

    PubMed

▼display all

Presentations

  • Neutral depletion and the density limit of the helicon plasma

    S. Isayama, S. Shinohara, T. Hada

    Japan Geoscience Union Meeting (日本地球惑星科学連合) 2021  2021.5 

    　More details

    Event date： 2021.7

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：e-conference   Country：Japan  

  • Dynamic profile formation of the helicon discharge Invited International conference

    S. Isayama, S. Shinohara, T. Hada, S. H. Chen.

    4th Asia-Pacific Conference on Plasma Physics (AAPPS-DPP2020)  2020.10 

    　More details

    Event date： 2021.7

    Language：English   Presentation type：Oral presentation (general)  

    Venue：e-conference   Country：Other  

  • Controlled injection of relativistic protons in wakefield by using dual-laser pulses Invited International conference

    S. Isayama, S. H. Chen, H. W. Chen, Y. L. Liu, Y. Kuramitsu, Y. Fukuda

    International Conference on High Energy Density Sciences (HEDS-2021)  2021.4 

    　More details

    Event date： 2021.7

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Osaka(e-conference)   Country：Japan  

  • Dynamic profile formation in the high-density helicon plasma

    S. Isayama, S. Shinohara, T. Hada, S. H. Chen

    第148回 地球電磁気・地球惑星圏学会  2020.11 

    　More details

    Event date： 2021.7

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：e-conference   Country：Japan  

  • Underlying mechanims in the dynamic profile formation of high-density helicon plasma

    S. Isayama, S. Shinohara, T. Hada and S. H. Chen

    3rd Asia-Pacific Conference on Plasma Physics (AAPPS-DPP2019)  2019.11 

    　More details

    Event date： 2018.11

    Language：Japanese  

    Country：China  

  • Ion accelration using self-focusing laser pulse in near critical density plasma Invited International conference

    S. Isayama, S. H. Chen, Y. Kuramitsu and Y. Fukuda

    2nd Asia-Pacific Conference on Plasma Physics (AAPPS-DPP2018)  2018.11 

    　More details

    Event date： 2018.11

    Language：English  

    Country：Japan  

  • Laser-driven accelration with ultra-thin graphene target International conference

    S. Isayama, S. H. Chen, H. H. Chu and Y. Kuramitsu

    12th International Conference on High Energy Density Laboratory Astrophysics  2018.5 

    　More details

    Event date： 2018.5

    Language：English  

    Country：Japan  

  • Self-consistent model of the helicon discharge Invited

    S. Isayama, T. Hada and S. Shinohara

    2nd Asia-Pacific Conference on Plasma Physics (AAPPS-DPP2017)  2017.9 

    　More details

    Event date： 2017.9

    Language：English  

    Country：China  

  • Simulation Study of Tabletop Two-stage Laser Proton Acceration International conference

    S. Isayama, S. H. Chen, Y. L. Liu and Y. Kuramitsu

    2020台湾物理学会  2020.1 

    　More details

    Event date： 2020.1

    Language：English  

    Country：Taiwan, Province of China  

  • Exploration for highly efficient laserdriven acceleration International conference

    S. Isayama, S. H. Chen, Y. L. Liu, and Y. Kuramitsu

    2019台湾物理学会  2019.1 

    　More details

    Event date： 2019.1

    Language：English  

    Country：Taiwan, Province of China  

  • Review of Helicon High-Density Plasma: Production Mechanism and Plasma/Wave Characteristics

    諌山 翔伍, 篠原 俊二郎, 羽田 亨

    第35回 プラズマ・核融合学会  2018.12 

    　More details

    Event date： 2018.12

    Language：Japanese  

    Venue：大阪   Country：Japan  

  • Mechanism of the helicon plasma production International conference

    S. Isayama, T. Hada, S. Shinohara and S. H. Chen

    2018台湾物理学会  2018.1 

    　More details

    Event date： 2018.1

    Language：English  

    Country：Taiwan, Province of China  

▼display all

MISC

  • 対向伝搬する磁気流体波動による相対論的共鳴粒子加速

    諌山翔伍, 高橋健太, 松清修一, 佐野孝好

    2023.5

    　More details

    Language：Japanese  

  • 対向伝搬する磁気流体波動による相対論的共鳴粒子加速

    諌山翔伍, 高橋健太, 松清修一, 佐野孝好

    2023.5

    　More details

    Language：Japanese   Publisher：プラズマ核融合学会  

    researchmap

  • ヘリコンプラズマ源の基礎と応用 Reviewed

    諌山　翔伍、篠原 俊二郎、桑原 大介、高橋 和貴，古川 武留、稲垣　滋

    プラズマ・核融合学会誌   2023.10

    　More details

    Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)  

Professional Memberships

  • The Japan Society of Plasma Science and Nuclear Fusion Research.

  • Society of Geomagnetism and Earth, Planetary and Space Sciences

  • The Physical Society of Japan

  • The Physical Society of Japan

    　 More details

  • Society of Geomagnetism and Earth, Planetary and Space Sciences

    　 More details

  • The Japan Society of Plasma Science and Nuclear Fusion Research.

    　 More details

▼display all

Academic Activities

  • Screening of academic papers

    Role(s)： Peer review

    2022

    　More details

    Type：Peer review 

  • プラズマ・核融合学会

    2021.7 - 2023.7

    　More details

    Type：Academic society, research group, etc. 

  • プラズマ・核融合学会

    Role(s)： Review, evaluation

    2021.7 - 2023.7

    　More details

    Type：Peer review 

    researchmap

Research Projects

  • 数値計算による中性粒子枯渇現象の密度限界・密度振動への影響の解明

    Grant number：22K14020  2022 - 2024

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

    諌山 翔伍

    　 More details

    Authorship：Principal investigator  Grant type：Scientific research funding

    高パワー・高密度な高周波プラズマ源において、イオン化の種となる中性粒子が枯渇しプラズマ密度が低下する「中性粒子枯渇」が問題となっている。中性粒子枯渇は高周波プラズマ源の密度限界を決める要因の一つとして考えられているだけでなく、プラズマの安定性に悪影響を及ぼすため、応用面においてはこの問題を克服することが課題となっている。本研究では3 流体（中性ガス、電子、イオン）数値計算によってプラズマ圧と中性ガス圧の時空間発展を解明し、中性粒子枯渇を克服するための効果的な中性粒子供給システムを開発する。

    CiNii Research

  • 数値計算による中性粒子枯渇現象の密度限界・密度振動への影響の解明

    2022 - 2024

    Grants-in-Aid for Scientific Research (Ministry of Education, Culture, Sports, Science and Technology)

    　 More details

    Authorship：Principal investigator  Grant type：Contract research

  • Qdai-jump Research Program

    2021

    　 More details

    Authorship：Principal investigator  Grant type：Contract research

Educational Activities

  • 大学院生卒研性の研究指導。
    大学院での演習。

Class subject

  • 課題集約演習

    2020.10 - 2021.3   Second semester