Hydrodynamics and K-shell radiation emission of laser compressed Ar-filled glass microballoons
Hydrodynamics and K-shell radiation emission of laser compressed Ar-filled glass microballoons
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激光压缩充氩玻璃微球的流体动力学和 K 壳辐射发射
DOI：
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发表时间：
1988
期刊：
影响因子：
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通讯作者：
C. Hooper
中科院分区：
文献类型：
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作者：
R. Mancini;C. Hooper
作者开发了一个模型，考虑和计算自洽的流体力学，原子物理和辐射发射的影响，在压缩的充氩玻璃微球照射高功率激光脉冲。他们用它来研究在罗切斯特大学激光能量学实验室进行的一系列实验。在某些情况下，显着的辐射冷却效应诱导进一步的压缩后，冲击波崩溃。考虑的时间的He-和H-样的Ar-线发射相对于流体动力学的演变是有用的一些光谱密度诊断的解释进行这些实验。他们认为，等离子体效应，如场致电离由于等离子体电场微场可能是负责一些不一致的电子密度推断从斯塔克展宽分析的莱曼系列。
The authors have developed a model that considers and computes self-consistently the effects of hydrodynamics, atomic physics and radiation emission during the compression of Ar-filled glass microballoons irradiated by high-powered laser pulses. They use it to study a series of experiments done at the University of Rochester Laboratory for Laser Energetics. In some of the cases significant radiation cooling effects induce further compression after the shock wave collapse. Considerations of the timing of the He- and H-like Ar-line emission relative to the hydrodynamic evolution is useful in the interpretation of some spectroscopic density diagnostics performed on these experiments. They suggest that plasma effects such as field-induced ionisation due to the plasma electric microfields may be responsible for some inconsistencies found in the electron densities inferred from Stark-broadening analysis of the Lyman series.