光斑位置对靶丸辐照不均匀度时间行为的影响

 从数值模拟和定性分析两个方面研究了腔靶内光斑位置对靶丸辐照不均匀度随时间变化规律的影响。结果表明，光斑相对于靶丸的极点和赤道点的几何因子随其位置的变化规律不同。根据它们大小的比较，靶丸辐照不均匀度随时间变化的趋势可分为三种类型，分别对应于光斑处于三个不同区域。定性分析与数值模拟给出一致的结果。

EFFECTS OF POSITIONS OF LASER SPOTS ON TIME BEHAVIOUR OF NON-UNIFORM DEGREE OF ILLUMINATION FOR A CAPSULE

In this article,effects of positions of laser spots on the wall of a cavity on variations of non-uniform degree of illumination for capsule with time have been studied by both numerical simulation and qualitative analysis.The results show that the geometrical factors relative to the pole and the equator of the capsule vary with positions of laser spots in different patterns.According to the comparison between their quantity, the tends of the variation of non-uniform degree of illumination for the capsule with time can be divided in three types, which correspond to laser spots to be in three different regions,respectively.The results given by qualitative analysis are in good agreement with those given by numerical simulation.