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Dynamics characteristics of highly-charged ions in laser-produced SiC plasmas
Abstract:
The radiation and dynamic properties of C VI, C V, Si VI and Si V ions from laser-produced SiC plasmas in a vacuum are studied both experimentally and theoretically. The EUV emission spectra of SiC plasmas are measured using the spatio-temporally resolved laser-produced plasma spectroscopy technique. To explore the dynamic evolution of highly-charged ions in such plasmas, an extended radiation hydrodynamics model is developed. The comparison of theoretical and experimental time-space evolved spectral profiles provides the temporal evolution of plasma temperature and electron density, the distribution of various transient ions and their velocities. The results show that the present radiation hydrodynamics model for a multi-element target reflects the dynamic evolution processes of their laser-produced plasmas, which make it an effective tool for plasma diagnostics.
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