Energy relaxation of intense laser pulse-produced plasmas

被引：2
作者：
Shihab, M. [1 ,2 ]
Abou-Koura, G. H. [1 ]
El-Siragy, N. M. [1 ]
机构：
[1] Tanta Univ, Dept Phys, Fac Sci, Tanta 31527, Egypt
[2] Univ Rostock, Inst Phys, D-18051 Rostock, Germany
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2016年 / 122卷 / 05期
关键词：
CHARGE-STATE DISTRIBUTION; X-RAY-EMISSION; RECOMBINATION PROCESSES; ELECTRON-DENSITY; CARBON PLASMA; ABLATION; TEMPERATURE; IONIZATION; NICKEL; COEFFICIENTS;
D O I：
10.1007/s00340-016-6419-7
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We describe a collisional radiative model (CRE) of homogeneously expanded nickel plasmas in vacuum. The CRE model is coupled with two separate electron and ion temperature magneto-hydrodynamic equations. On the output, the model provides the temporal variation of the electron temperature, ion temperature, and average charge state. We demonstrate the effect of three-body recombination (proportional to NeTe-9/2) on plasma parameters, as it changes the time dependence of electron temperature from t(-2) to t(-1) and exhibits a pronounced effect leading to a freezing feature in the average charge state. In addition, the effect of the three-body recombination on the warm up of ions and delaying the equilibration is addressed.
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页数：7
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