摘要
采用等离子体复合抽运x射线激光模型,本文从四能级速率方程出发,计算了铜的类氖离子2p^6、2p^53s、2p^53p能级上的粒子数分布、反转、x激光增益系数与等离子体参数的关系。结果发现:电子温度的上升和自由电子密度的快速衰减都会影响体系粒子数反转的峰值和发生的区域。另外,理论结果也表明:在等离子体过高、过低的密度区域都不可能使3s-3p态能级间发生粒子数反转。
Using the model of recombination pumping X-ray laser, we calculate and analyse relationship between population inversion, gain of x-ray laser in Ne-like Cu and parameters of plasma from four-level energy rate equations. The theoretical results shows that both the rise of temperature and the rapid reduction of the desity of electrons can affect population inversion density and its area.In addition, the results also show that it is impossible to occur to population inversion beyond the certain range of plasma density.
