类钠铌离子的能级和辐射跃迁几率

The Energy Levels and Radiative Transition Probabilities of Na-Like Niobium

本文采用多组态Dirac-Fock理论计算了类钠铌离子1s^22s^22p^6nl(n=3～15,l=0～6)各能级能量及各能级(nlj)_k-(nlj)_k(ni≤6,nk≤15)间的电偶极辐射跃迁几率。结果表明,可能产生软X射线激光跃迁(4f—5g,4d—5f,4f—6g,4d—6f)的波长均在水窗波段(2.33～4.37nm)内。并把计算得到的某些跃迁波长值与测量值进行了比较,其相对误差小于1.5‰。

The present paper covers the calculated energy levels and radiative transition probabilities for transitions (nlj)_i-(nlj)_k(n_i≤6, n_k≤15) of Na-like Niobium. The anticipated laser transition wavelengths lie in the water window. The wavelengths obtained from our calculation are in good agreement with the experimental values.