论文部分内容阅读
利用发展的新版一维非平衡辐射流体力学 RDMG 程序研究了激光辐照平面金靶所产生的 X 光的谱特性, 并对“三温”模型的适用性进行了考察. 结果表明, 激光辐照平面金靶所产生的 X光具有明显的非平衡特征; 原子模型对 X光能带结构的数值模拟结果有明显影响; “三温”模型所计算出的等离子体状态、激光吸收效率及激光-X光转换效率与非平衡多群辐射输运模型的计算结果基本一致.表明“三温”模型在研究激光与高 Z 靶耦合所产生的等离子体状态以及能量分配时是适用的.
The new one-dimensional unbalanced emission hydrodynamics RDMG program was used to study the spectral characteristics of the X-ray produced by the laser irradiated planar gold target, and the applicability of the “three-temperature” model was investigated. The results show that laser irradiation The X-ray generated by the planar gold target has obvious non-equilibrium characteristics; the atomic model has a significant effect on the numerical simulation of the X-ray energy band structure; the plasma state, the laser absorption efficiency and the laser- The X-ray conversion efficiency is basically consistent with that of the non-equilibrium multi-group radiation transport model, indicating that the “three temperature” model is suitable for studying the plasma state and energy distribution generated by the laser-high Z-target coupling.