Achievement of Target Gain Larger than Unity in an Inertial Fusion Experiment.
Achievement of Target Gain Larger than Unity in an Inertial Fusion Experiment.
复制标题
DOI：
10.1103/physrevlett.132.065102
复制
发表时间：
2024-02
影响因子：
8.6
通讯作者：
H. Abu-Shawareb;R. Acree;P. Adams;J. Adams;B. Addis;R. Aden;P. Adrian;B. B. Afeyan-B. ;
中科院分区：
文献类型：
--
作者：
H. Abu-Shawareb;R. Acree;P. Adams;J. Adams;B. Addis;R. Aden;P. Adrian;B. B. Afeyan-B. ;
2022年12月5日，国家点火装置（NIF）上的间接驱动聚变内爆实现了1.5的目标增益G_{target}。这是第一次在实验室中证实超过“科学盈亏平衡”（或G_{target}>1），即2.05 MJ的351 nm激光产生3.1 MJ的总聚变产额，这一结果大大超过了以前NIF内爆中报道的聚变点火的Lawson判据[H. Abu-Shawareb et al.（Indirect Drive ICF Collaboration），Phys. Rev. Lett. 129，075001（2022）PRLTAO0031-900710.1103/PhysRevLett.129.075001]。这一成就是五十多年研究的成果，证明了基于基本物理原理的实验室聚变是可能的。这封信报告了导致这一结果的目标，激光，设计和实验进展。
On December 5, 2022, an indirect drive fusion implosion on the National Ignition Facility (NIF) achieved a target gain G_{target} of 1.5. This is the first laboratory demonstration of exceeding "scientific breakeven" (or G_{target}>1) where 2.05 MJ of 351 nm laser light produced 3.1 MJ of total fusion yield, a result which significantly exceeds the Lawson criterion for fusion ignition as reported in a previous NIF implosion [H. Abu-Shawareb et al. (Indirect Drive ICF Collaboration), Phys. Rev. Lett. 129, 075001 (2022)PRLTAO0031-900710.1103/PhysRevLett.129.075001]. This achievement is the culmination of more than five decades of research and gives proof that laboratory fusion, based on fundamental physics principles, is possible. This Letter reports on the target, laser, design, and experimental advancements that led to this result.