F原子光电离截面的理论计算

对F原子的光电离截面,人们已经做了大量实验研究,并观察到了大量的自电离共振结构.而与实验相比,理论计算仍存在一定的差异.本文通过对靶态的能量进行修正,利用R矩阵方法计算了F原子基态在3P-1D电离阈值能量范围内的分波光电离截面、总光电离截面以及自电离共振2P4(1D)ns2D,2P4(1D)md2P和2P4(1D)md2D系列的共振位置,并与最新的多组态Hartree-Fock理论计算及实验结果进行了比较,我们的结果与实验符合得更好.

Theoretical calculations of photoionization of atomic fluorine

There are many experimental studies performed for the photoionization of atomic fluorine,and the autoionization resonance series in fluorine have been observed.But there still exists discrepancy between theoretical calculation results and experiment ones.In this paper,by modifying the theoretical energy levels of target to produce experimental results,we have calculated the partial and total photoionization cross sections of atomic fluorine for photon energies between the states()~3P and()~1D thresholds,and the autoionization resonances position for the states 2P~4(()~1D)ns()~2D,2P~4(()~1D)md()~2P and 2P~4(()~1D)md()~2D.Compared our results with recent multiconfiguration Hartree-Fock calculations,it is shown that our results are in good agreement with the experimental ones.