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Table 1

Electron configuration basis for the DW calculation and orbital scaling parameters for Fe ix.

Configurations Scaling parameters
even odd

3s2 3p6 3s2 3p5 3d 1s: 1.4171 2s: 1.1241
3s 3p6 3d 3s 3p5 3d2 2p: 1.0672 3s: 1.1499
3s2 3p4 3d2 3s2 3p5 4s 3p: 1.1294 3d: 1.1371
3s2 3p5 4p 3s2 3p5 4d 4s: 1.1524 4p: 1.1254
3s 3p6 4s 3s 3p6 4p 4d: 1.1308 4f: 1.2586
3s 3p6 4d 3s 3p6 4f 5s: 1.1667 5p: 1.1366
3s2 3p5 4f 3s2 3p5 5s 5d: 1.1650 5f: 1.7195
3p6 3d2 3s2 3p5 5d 5g: 1.6330 6s: 1.1935
3s2 3p5 5p 3s2 3p5 5g 6p: 1.1871 6d: 1.2061
3s2 3p5 5f 3s2 3p5 6s 6f: 1.7170 6g: 1.6577
3s2 3p5 6p 3s2 3p5 6d
3s2 3p5 6f 3s2 3p5 6g
- - - - - - - - - - - - - - - - - - - - - -
3s2 3p4 3d 4s 3s2 3p4 3d 4p
3s2 3p4 3d 4d 3s2 3p4 3d 4f
3s 3p4 3d3 3s2 3p3 3d3
3s 3p6 5s 3p5 3d3
3s 3p6 5d 3s 3p6 5p
3s 3p6 5g 3s 3p6 5f
3s2 3p4 3d 5s 3s2 3p4 3d 5p
3s2 3p4 3d 5d 3s2 3p4 3d 5f
3s2 3p4 3d 5g 3s 3p5 3d 5s
3s 3p5 3d 5p 3s 3p5 3d 5d
3s 3p5 3d 5f 3s 3p5 3d 5g
3s 3p6 6s 3s 3p6 6p
3s 3p6 6d 3s 3p6 6f
3s 3p6 6g 3s2 3p4 3d 6p
3s2 3p4 3d 6s 3s2 3p4 3d 6f
3s2 3p4 3d 6d 3s 3p5 3d 6s
3s2 3p4 3d 6g 3s 3p5 3d 6d
3s 3p5 3d 6p 3s 3p5 3d 6g
3s 3p5 3d 6f 3s 3p5 3d 4s
3s2 3p2 3d4 3s 3p5 3d 4d
3s2 3p4 4p2
3s 3p5 3d 4p
3s 3p5 3d 4f

Notes. The configurations below the dashed line are correlation configurations.

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