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Stability and confinement improvement of an oblate field-reversed configuration by using neutral beam injection

T. Ii, M. Inomoto, K. Gi, T. Umezawa, T. Ito, K. Kadowaki, Y. Kaminou, Y. Ono2013年被引用 8Nuclear FusionIF 3出版社

A low-energy, high-current neutral beam injection (NBI) was applied to an oblate field-reversed configuration (FRC) for the first time. The NB fast ions reduce growth rates of low-n modes dangerous for the oblate FRC, extending the FRC lifetime by a factor of 1.2. The reduced loss power of 5 MW is much higher than the NBI power of 0.5 MW, indicating that the NBI not only heats the FRC plasma but also improves its stability and transport properties. The NBI also maintains higher pressure and current density profiles of the FRC, improving its flux and energy decay times by a factor of 2.

日本語訳

低エネルギー・高電流の中性粒子ビーム入射(NBI)が、偏平な磁場反転配位(FRC)に初めて適用された。NB高速イオンは、偏平FRCにとって危険な低nモードの成長率を低減し、FRCの寿命を1.2倍に延長する。低減された損失電力5 MWは、NBI電力0.5 MWよりもはるかに高く、NBIがFRCプラズマを加熱するだけでなく、その安定性と輸送特性も改善することを示している。NBIはまた、FRCのより高い圧力および電流密度分布を維持し、そのフラックスおよびエネルギー減衰時間を2倍に改善する。

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Neutral beamNeutral beam injectionField-Reversed Configuration
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