Howard J E
Appl Opt. 1977 Oct 1;16(10):2764-73. doi: 10.1364/AO.16.002764.
Uniformity of illumination of spherical laser fusion targets is calculated for eight, twelve, and twenty beams arranged according to the symmetry of the Platonic solids. Uniformity is optimized by varying the f/no of ideal aberration-free lenses, amount of beam overlap, and the shape of the spatial beam profile. The numerical results show twenty-beam illumination to be slightly better than twelve-beam illumination, with eight beams running a poor third. Refractive energy losses due to nonorthogonal illumination and the implications for the design of a practical laser fusion reactor are discussed.
针对按照柏拉图立体的对称性排列的八束、十二束和二十束激光，计算了球形激光聚变靶的光照均匀性。通过改变理想无像差透镜的f/数、光束重叠量和空间光束轮廓的形状来优化均匀性。数值结果表明，二十束光照明略优于十二束光照明，八束光照明则远落后于前两者。讨论了非正交照明导致的折射能量损失以及对实用激光聚变反应堆设计的影响。
