Online ISSN: 1884-4111 Print ISSN: 0033-8303
Radioisotopes 67(4): 153-159 (2018)

特集Special Issues

5 炉心プラズマ研究の現状5 Status of Fusion Plasma Research

国立研究開発法人量子科学技術研究開発機構核融合エネルギー研究開発部門那珂核融合研究所先進プラズマ研究部Naka Fusion Institute, National Institutes for Quantum and Radiological Science and Technology ◇ 311–0193 茨城県那珂市向山801–1 ◇ 801–1 Mukouyama, Naka-shi, Ibaraki Pref. 311–0193, Japan

発行日:2018年4月15日Published: April 15, 2018


The integrated performance required for the fusion plasma is to produce sufficient fusion power by high energy confinement, to keep the heat flux onto the first wall within the allowable level, to make the reactor core compact by high fusion power density (=high plasma pressure), and to sustain the plasma in the steady-state under a small circulating power in the power plant. Japan has been leading the fusion plasma research in the world by achieving various records such as the break-even condition in JT-60 etc. The key research areas towards DEMO reactors include i) achievement and long sustainment of the burning plasmas (the energy gain=10) in ITER, ii) achievement and long sustainment of steady-state high pressure plasmas (high normalized pressure and high fraction of self-driven plasma current), and iii) understanding of the fusion plasma together with modeling and simulation enabling sufficient prediction of the DEMO reactors.

Key words: burning plasma; high energy confinement; high pressure plasma; steady-state operation; ITER; JT-60SA; modeling simulation

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