简要地介绍了美国激光惯性约束聚变能源(LIFE)的研究现状与发展前景.基于美国国家点火装置(NIF)的近期进展,美国利弗莫尔实验室提出了激光惯性约束聚变能源设想,并开始了分解研究.设想用新型二极管泵浦固体激光器产生1.4～2.0 MJ的激光能量,靶丸聚变增益25～30,打靶频率10～15Hz,实现350～500 MW聚变功率,相当于聚变中子源强1.3×1020～1.8×1020 n/s.以此驱动次临界裂变包层,使能量再倍增4～10倍,实现1 GW电功率的输出.采用创新设计的燃料元件,包层可达到90％以上的燃耗深度,形成一个安全、无碳、燃料资源丰富、核废料少、可持续发展的新型核能源系统.
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