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2019 Fiscal Year Final Research Report

Function of self-healing of magnetic configuration in helical fusion reactor

Research Project

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Project/Area Number 15K06649
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Nuclear fusion studies
Research InstitutionNational Institute for Fusion Science

Principal Investigator

NARUSHIMA Yoshiro  核融合科学研究所, ヘリカル研究部, 助教 (40332184)

Project Period (FY) 2015-04-01 – 2020-03-31
Keywords磁場閉じ込めプラズマ / 平衡磁場 / 磁気島
Outline of Final Research Achievements

In the LHD, it is important that the ability of the self-healing of the magnetic field configuration works properly in any plasma. As a result of comparing the deuterium plasma with the hydrogen plasma, it was found that the hydrogen plasma was easier to be self-healing than the deuterium plasma. It was difficult to realize the self-healing in the deuterium plasma, but it was confirmed that the ability of the self-healing by the plasma flow works, and that the equilibrium magnetic field configuration can be self healed if the conditions are satisfied.

Free Research Field

核融合学

Academic Significance and Societal Importance of the Research Achievements

本研究により、重水素プラズマにおいても平衡磁場配位の自己修復機能が働くことが確認された。これは、磁場配位構造の破壊によるプラズマ閉じ込め性能の深刻な低下を避けることが可能であることを意味する。さらに、スピンオフ的に発見された非接触プラズマと平衡磁場配位との相関については、非接触プラズマ実現のためのひとつの方策を提供した。これらのことは、将来のヘリオトロン型核融合炉実現に向けて意義のある結果である。

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Published: 2021-02-19  

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