Monte Carlo approach to calculate ionization dynamics of hot solid-density plasmas within particle-in-cell simulations

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 强场激光物理国家重点实验室

	Monte Carlo approach to calculate ionization dynamics of hot solid-density plasmas within particle-in-cell simulations
	He, X. T.; Fritzsche, S.; Wu, D.; Yu, W.
刊名	Phys. Rev. E
	2017
卷号	95 期号:2
通讯作者	wudong@siom.ac.cn ; s.fritzsche@gsi.de
英文摘要	A physical model based on a Monte Carlo approach is proposed to calculate the ionization dynamics of hot-solid-density plasmas within particle-in-cell (PIC) simulations, and where the impact (collision) ionization (CI), electron-ion recombination (RE), and ionization potential depression (IPD) by surrounding plasmas are taken into consideration self-consistently. When compared with other models, which are applied in the literature for plasmas near thermal equilibrium, the temporal relaxation of ionization dynamics can also be simulated by the proposed model. Besides, this model is general and can be applied for both single elements and alloys with quite different compositions. The proposed model is implemented into a PIC code, with (final) ionization equilibriums sustained by competitions between CI and its inverse process (i.e., RE). Comparisons between the full model and model without IPD or RE are performed. Our results indicate that for bulk aluminium at temperature of 1 to 1000 eV, (i) the averaged ionization degree increases by including IPD; while (ii) the averaged ionization degree is significantly over estimated when the RE is neglected. A direct comparison from the PIC code is made with the existing models for the dependence of averaged ionization degree on thermal equilibrium temperatures and shows good agreements with that generated from Saha-Boltzmann model and/or FLYCHK code.
收录类别	SCI
资助信息	German Academic Exchange Service (DAAD); China Scholarship Council (CSC)
WOS记录号	WOS:000394094500008
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/28669]
专题	上海光学精密机械研究所_强场激光物理国家重点实验室
作者单位	中国科学院上海光学精密机械研究所
推荐引用方式 GB/T 7714	He, X. T.,Fritzsche, S.,Wu, D.,et al. Monte Carlo approach to calculate ionization dynamics of hot solid-density plasmas within particle-in-cell simulations[J]. Phys. Rev. E,2017,95(2).
APA	He, X. T.,Fritzsche, S.,Wu, D.,&Yu, W..(2017).Monte Carlo approach to calculate ionization dynamics of hot solid-density plasmas within particle-in-cell simulations.Phys. Rev. E,95(2).
MLA	He, X. T.,et al."Monte Carlo approach to calculate ionization dynamics of hot solid-density plasmas within particle-in-cell simulations".Phys. Rev. E 95.2(2017).