Open Access

Table 1

Comparison of energy levels (in eV) from present FAC calculations and NIST (Kramida et al. 2024) for selected ions.

Ion State FAC NIST (Kramida et al. 2024)
Y+ 4d5s2 2D3/2 (Y) 0 0
5s2 1S0 4.728 6.217
4d5s 3D1 4.978 6.321
4d5s 3D2 4.994 6.347
4d5s 3D3 5.021 6.397
5s5p 30 7.626 9.124
5s5p 31 7.637 9.165
5s5p 32 7.638 9.273

Sr+ 5s2 1S0 (Sr) 0 0
4p65s 2S1/2 4.603 5.695
4p64d 2D3/2 6.878 7.500
4p64d 2D5/2 6.879 7.534
4p65p 21/2 7.279 8.635
4p65p 23/2 7.360 8.735

Te2+ 5s25p3 43/2 (Te+) 0 0
5s25p2 3P0 17.798 18.600
5s25p2 3P1 18.274 19.189
5s25p2 3P2 18.740 19.612
5s25p5d 31 31.560 32.950
5s25p5d 33 32.466 33.589
5s25p5d 32 31.872 33.789
5s25p5d 30 32.581 --
5s25p5d 32 32.665 33.070
5s25p5d 31 32.628 33.204

Ce2+ 4f5d2 47/2 (Ce+) 0 0
4f2 3H4 12.388 10.956
4f2 3H5 12.498 11.145
4f2 3H6 12.642 11.344
4f5d 14 10.701 11.362

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