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Enhancement of fusion power multiplication factor

Setsuo Niikura, Masayuki Nagami1988年Fusion Engineering and DesignIF 1.7出版社

Enhancement of the fusion power multiplication factor, Q, has been investigated using a simple plasma model, in which the radial profiles of the plasma temperature and density or the fast-ion velocity distribution are the same as those observed in recent experiments. The break-even condition is relaxed by a peaked density profile, beam-plasma reactions, and the fast ions produced by ICRF heating at the second harmonic of deuterium in a D-T thermal plasma. The minimum nτT required for break-even has also been lowered. Furthermore, it is possible to enhance Q through local thermal instability near the plasma center using a simple transport simulation, in which the profile of the plasma density does not change during the simulation and only the thermal conduction loss is considered. Finally, the operational plasma parameters for JT-60 in the nτ vs. T diagram have been investigated.

日本語訳

核融合出力増倍率Qの向上が、プラズマ温度・密度の動径分布または高速イオン速度分布が最近の実験で観測されたものと同一である単純なプラズマモデルを用いて調べられた。ピーク状の密度分布、ビーム・プラズマ反応、およびD-T熱プラズマ中の重水素の第二高調波におけるICRF加熱によって生成された高速イオンにより、臨界条件は緩和される。臨界に必要な最小のnτTも低減された。さらに、プラズマ密度の分布がシミュレーション中に変化せず、熱伝導損失のみを考慮した単純な輸送シミュレーションを用いて、プラズマ中心近傍の局所熱的不安定性を通じてQを向上させることが可能である。最後に、nτ-T線図におけるJT-60の運転プラズマパラメータが調べられた。

装置

jt-60sa中精度(概要文一致)
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