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Achievement of high fusion triple product in the JT-60U high βp H mode

M. Mori, S. Ishida, T. Ando, K. Annoh, N. Asakura, M. Azumi, A.A.E. van Blokland, G.J. Frieling, T. Fujii, T. Fujita1994年被引用 34Nuclear FusionIF 3出版社

Improvement of an enhanced confinement state in a high poloidal beta (βp) regime without sawtooth activity has been achieved in JT-60U. A confinement mode has been demonstrated where both the edge and the core confinement are improved. The attainable βp was also extended to higher values in this improved mode, because of its broader pressure profile. As a result of the improvement in confinement and in attainable βp, the highest value of the fusion triple product has been extended by a factor of 2.5 over that achieved in the 1992 experiments; it has reached (1.1 ± 0.3) × 1021 m-3.s.keV with a central ion temperature of about 37 keV. The D-D neutron emission rate has also been doubled in these experiments and has reached (5.6 ± 0.6) × 1016 s-1

日本語訳

高ポロイダルベータ(βp)領域における鋸歯状振動を伴わない高閉じ込め状態の改善がJT-60Uで達成された。周辺部とコア部の両方の閉じ込めが改善される閉じ込めモードが実証された。また、この改善されたモードでは、圧力分布がよりブロードであることにより、達成可能なβpもより高い値まで拡張された。閉じ込めと達成可能なβpの改善の結果、核融合トリプル積の最高値は1992年の実験で達成された値の2.5倍にまで拡張され、中心イオン温度約37 keVで(1.1 ± 0.6)× 10^21 m^-3・s・keVに達した。D-D中性子放出率もこれらの実験で2倍に増加し、(5.6 ± 0.6)× 10^16 s^-1に達した。

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