激光直接驱动聚变球靶的完全均匀辐照

Perfectly uniform irradiation of spherical targets for laser direct driven fusion

通过分析球形靶面辐照不均匀度的球谐模，提出了用有限束光实现球靶完全均匀辐照的一般条件，为优化设计多光束辐照系统和评估球靶的辐照不均匀度提供了依据。文中还例举了能实现靶面完全均匀辐照的多光束系统。

By analyzing the spherical-harmonic modes of irradiation nonuniformity, the general conditions are acquired for perfectly uniform irradiation of spherical targets for direct driven laser fusion from a finite number of laser beams. The results provide the theory for optimum designing practical multibeam irradiation systems and evaluating irradiation nonuniformity of spherical targets. Some typical examples that satisfy the conditions are presented.