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Inertial confinement fusion: steady progress towards ignition and high gain (summary talk)

M.M. Basko2005年被引用 5Nuclear FusionIF 3出版社

Based on the results presented at the 20th IAEA Fusion Energy Conference 2004, this paper highlights the most important recent advances in inertial confinement fusion (ICF). With the construction of the National Ignition Facility (NIF) and the Laser Mégajoule facility and many improvements in the target design, the conventional indirect-drive approach is advancing steadily towards the demonstration of ignition and high gain. The development of the polar direct-drive concept also made the prospects for direct-drive ignition on the NIF very favourable. Substantial progress was reported on the exploration of the fast-ignition approach to ICF. Parallel to that, multi-wire Z-pinches have become a competitive driver option for achieving ignition at the lowest possible cost. In heavy-ion fusion, experiments have been devoted so far to studying the generation, transport, and final focusing of high-current ion beams. A new concept for a power plant with a heavy-ion driver, based on a cylindrical direct-drive target compressed and ignited (in the fast-ignition mode) by two separate beams of very energetic (Ei≳ 0.5 GeV u−1) heavy ions, has been proposed.

日本語訳

本論文は、第20回IAEA核融合エネルギー会議(2004年)で発表された成果に基づき、慣性閉じ込め核融合(ICF)における最も重要な最近の進展を概説するものである。国立点火施設(NIF)およびレーザー・メガジュール施設の建設と、ターゲット設計における多くの改良により、従来型の間接駆動方式は点火および高利得の実証に向けて着実に前進している。また、極方向直接駆動方式の開発により、NIFにおける直接駆動点火の見通しも極めて有望となった。高速点火方式に関しても、ICFへの応用に向けて substantial な進展が報告されている。これと並行して、Zピンチ方式は、最小限のコストで点火を達成するための競争力のある駆動手段として台頭してきている。重イオン核融合においては、これまでの実験は高電流イオンビームの生成、輸送、および最終集束の研究に焦点が当てられてきた。さらに、円筒状直接駆動ターゲットを、2つの別々の非常に高エネルギー(Ei≳0.5 GeV/u)の重イオンビームによって圧縮・点火(高速点火モード)する方式に基づく、重イオン駆動による新しい発電炉コンセプトが提案されている。

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