采用了1维简单模型来模拟气体靶的空间密度分布情况,并且该计算值得到了实验的验证。使用M-Z干涉仪诊断锥型喷嘴喷射的气体靶密度分布,得到了不同压力和不同延时下的干涉图样。自行编写了实验数据处理程序,得到了不同情况下气体密度的空间分布。在相互作用实验中,由气体分子密度随压力的变化,可以确定合适的压力,以获得预期的气体靶密度;由气体分子密度随时间的变化,可以确定激光与气体的作用时刻。 A simple one-dimensional model was used to simulate the spatial density distribution of gas targets, and the calculated value was verified experimentally. The M-Z interferometer was used to diagnose the gas target density distribution of the cone nozzle. The interference patterns under different pressures and different delays were obtained. The experimental data processing program was prepared by ourselves and the spatial distribution of gas density under different conditions was obtained. In the interaction experiment, the appropriate pressure can be determined by the variation of gas molecular density with pressure to obtain the expected gas target density. The action time of laser and gas can be determined by the change of gas molecular density with time.