Frontier Exploration of Internal Transport Barrier Formation for Fusion Plasma by Electromagnetic Field Control

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K03792
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 14020:Nuclear fusion-related
• Research Institution: Kyoto University
• Principal Investigator: Minami Takashi 京都大学, エネルギー理工学研究所, 准教授 (40260046)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: 磁場閉じ込め核融合 / ヘリカル型装置 / Heliotron J装置 / トムソン散乱計測 / マルチパストムソン散乱計測 / 電子内部輸送障壁 / プラズマ制御

Outline of Final Research Achievements

An improvement of plasma confinement is required for realizing fusion reactor in order to generate fusion energy. The knowledge of a dynamics of an internal transport barrier contribute to the fusion plasma performance.
In a helical plasma, which can generate an electric field independently of the magnetic field structure, the dynamic physical mechanism of plasma structure formation, which is linked to the formation of an internal transport barrier, is studied. By developing a double pockels cell-type multi-path Thomson scattering measuring device (DPMP-TH), the non-isotropic velocity distribution of electrons can be measured, and the effect of the electron velocity distribution on plasma transport and barrier formation is investigated.

Free Research Field

プラズマ核融合学

Academic Significance and Societal Importance of the Research Achievements

人類共通のエネルギー問題解決、それに伴う持続可能な社会の創造、地球温暖化問題を始めとする地球環境問題の解決のために磁場閉じ込め核融合炉によるエネルギー生成の実現を目指した。そのために必要な高性能プラズマ生成を実現するためにプラズマの熱輸送を改善を目指した。本研究により得られた電子内部輸送障壁形成に対する知見は、この目標達成に資する成果と考えている。