论文标题

MAICRM:快速模拟热等离子体的通用模型

MAICRM : A general model for rapid simulation of hot dense plasmas

论文作者

Han, Xiaoying, Li, Lingxiao, Dai, Zhensheng, Zheng, Wudi, Gu, Peijun, Wu, Zeqing

论文摘要

我们提出了一个通用模型,即多平均离子碰撞 - 辐射模型(MAICRM),以快速模拟热致密等离子体的电离和种群分布。在MAICRM中,同一电荷阶段的离子的轨道占用数量由激发和脱离驱激过程取代和确定。平均离子的种群由每个离子中固定轨道平均职业数量的电离和重组过程确定。 MAICRM的计算平均电离和电荷状态分布与其他理论和实验结果一般一致,尤其是对于中高密度等离子体。由于MAICRM认为比平均原子模型更详细的过渡和电离平衡,并且比DCA/SCA模型更快,因此该模型具有将其组合到流体动力学模拟中的优势。

We propose a general model, Multi-Average Ion Collisional-Radiative Model (MAICRM), to rapid simulate the ionization and population distributions of hot dense plasmas. In MAICRM, the orbital occupation numbers of ions at the same charge stage are averaged and determined by the excitation and de-excitation processes; the populations of the average ions are determined by the ionization and recombination processes with the fixed orbital average occupation numbers in each ion. The calculated mean ionizations and charge state distributions of MAICRM are in general agreement with the other theoretical and experimental results especially for the mid- and high-density plasmas. Since MAICRM considers more detailed transitions and ionization balances than the average atom model and is faster than DCA/SCA models, this model has the advantage to be combined into hydrodynamic simulations.

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