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Present status of fast ignition realization experiment and inertial fusion energy development

H. Azechi, K. Mima, S. Shiraga, S. Fujioka, H. Nagatomo, T. Johzaki, T. Jitsuno, M. Key, R. Kodama, M. Koga2013年被引用 29Nuclear FusionIF 3出版社

One of the most advanced fast ignition programmes is the fast ignition realization experiment (FIREX). The goal of its first phase is to demonstrate ignition temperature of 5 keV, followed by the second phase to demonstrate ignition-and-burn. The second series experiment of FIREX-I, from late 2010 to early 2011, has demonstrated a high (>10%) coupling efficiency from laser to thermal energy of the compressed core, suggesting that the ignition temperature can be achieved at laser energy below 10 kJ. Further improvement of the coupling efficiency is expected by introducing laser-driven magnetic fields.

日本語訳

最も先進的な高速点火計画の一つが高速点火実現実験(FIREX)である。その第一段階の目標は5 keVの点火温度を実証することであり、続く第二段階では点火・燃焼を実証することを目指している。2010年末から2011年初めにかけて実施されたFIREX-Iの第2次実験では、レーザーから圧縮コアの熱エネルギーへの結合効率が10%を超える高い値で実証され、10 kJ未満のレーザーエネルギーで点火温度が達成可能であることが示唆された。結合効率のさらなる向上は、レーザー駆動磁場の導入によって期待されている。

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