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Toshiki Kinoshita Last modified date：2024.04.24

Assistant Professor / Advanced Fusion Research Center
Research Institute for Applied Mechanics


Graduate School
Department of Interdisciplinary Engineering Sciences
Interdisciplinary Graduate School of Engineering Sciences


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Homepage
https://kyushu-u.elsevierpure.com/en/persons/toshiki-kinoshita
　Reseacher Profiling Tool　Kyushu University Pure
Phone
092-583-7483
Fax
092-573-6899
Academic Degree
Doctor of Philosophy in Engineering
Country of degree conferring institution (Overseas)
No
Field of Specialization
Plasma Diagnostics, Plasma Physics
ORCID(Open Researcher and Contributor ID)
0000-0003-3930-4434
Total Priod of education and research career in the foreign country
00years00months
Research
Research Interests
  • Real-time plasma control under low-turbulence conditions focusing on turbulence transition
    keyword : LHD,plasma control,turbulence transport, high-temperature plasma, confinement
    2023.04～2024.12.
  • Turbulence transition in LHD and their role in hydrogen isotope plasmas
    keyword : LHD, turbulence transport, high-temperature plasma, confinement
    2022.04～2024.12.
  • Development of FM-Reflectometry in QUEST
    keyword : high-temperature plasma, microwave measurement
    2023.04～2024.12.
Academic Activities
Papers
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Presentations
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1. T. Kinoshita, K. Tanaka, A. Ishizawa, M. Nunami, H. Sakai, Turbulence Transition and Its Role in Isotope Effects of LHD
, 29th Fusion Energy Conference , 2023.10, In this study, we discover a turbulence transition and its role in the isotope effects in the Large Helical Device (LHD). Two types of experiments and simulations suggest that the dominant turbulence is the ion-temperature gradient (ITG) turbulence in the low-density regime and resistive-interchange (RI) turbulence in the high-density regime. Negligible isotope effects in the turbulences and transports of hydrogen (H) and deuterium (D) plasma were found in the ITG regime. However, clear isotope effects were observed in the RI regime. In the RI regime, the turbulences and transports were clearly suppressed, and the confinements were improved in D plasma. The reduction of the turbulence level in the RI regime of the D plasma is likely due to the heavier ion mass and lower resistivity in D plasma, which suppress the linear growth rate of RI turbulence..


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