,Monte Carlo Simulation of Opacities of Hot and Dense Au Plasma in the Unresolved Transition Array A

• 作 者: 程新路 杨莉 张红 杨向东
• 机 构: Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065“,”Department of Physic
• 出 处: 中国物理快报（英文版）
• 发表日期: 2002年7期

The opacity, and its Planck and Rosseland mean values, of the hot and dense Au plasma in local thermodynamicsequilibrium are studied by the Monte Carlo method based on the unresolved transition array (UTA) approxima-tion. The average ion model and the Saha equation are used to determine the atomic level populations. Theresult gives a more detailed structure for frequency-dependent opacity than the popularly used super transitionarray or UTA in the photon energy range of 500eV to 2000eV. The Monte Carlo method can give a result betterthan that of the UTA, with almost the same computation effort.