不同喷嘴结构下气体射流中的团簇尺寸分布
Cluster size distributions in gas jets for different nozzle geometries
摘要：
采用瑞利散射诊断法研究了不同喷嘴结构下氩和氙中的团簇尺寸分布。不同的喷嘴几何形状导致不同的行为，因此空间和时间的集群大小分布进行了研究，以获得一个良好的特征集群目标。它表明，通常使用的Hagena缩放可以导致从观察到的数据和行为的显着偏差不能由一个单一的材料冷凝参数来描述。随着nanoplasma模型应用到以前的高次谐波产生实验的数据的结果允许独立测量的集群大小和集群密度。
英文摘要：
Cluster size distributions were investigated in case of different nozzle geometries in argon and xenon using Rayleigh scattering diagnostics. Different nozzle geometries result in different behaviour, therefore both spatial- and temporal cluster size distributions were studied to obtain a well-characterized cluster target. It is shown that the generally used Hagena scaling can result in a significant deviation from the observed data and the behaviour cannot be described by a single material condensation parameter. The results along with the nanoplasma model applied to the data of previous high harmonic generation experiments allow the independent measurement of cluster size and cluster density.
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