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Fine-structure energy levels of two-electron excitation configurations 3d94s2, 3d94s4p, 3d94p2 are calculated by Hartree-Fock method, which includes the configuration interaction, relativistic correction and approximate Breit correction, for copper-like Nb XIII. More accurate levels are obtained by the least-square-fit technique. The wavelengths and transition probabilities of 3d94s4p-3d104s, 3d94s2-3d104p, 3d94p2-3d104p, 3d94s4p-3d94s2 transition array are obtained, and some unknown results are predicted. Computing research shows that the 40.92 nm line should belong to 3d94s(1D)4p2F7/2-3d9(2D)4s2 2D5/2 transition, but not to the 3d94s(1D)4p4D7/2-3d9(2D)4s2 2D5/2 transition, and the upper term level should be 2F7/2, but not 4D7/2.
[1] Kim Y K, Baik D H, Indelicato P 1991 Phys. Rev. A 44 148
[2] Blundell S A 1993 Phys. Scr. T 46 144
[3] Safronova U I, Johnson W R, Shlyaptseva A 2003 Phys. Rev. A 67 52507
[4] Sugar J, Musgrove A 1991 Phys. Chem. Ref. Data 20 998
[5] Martinson I 1989 J. Rep. Prog. Phys. 52 157
[6] Reader J, Acquista N 1983 J. Opt. Soc. Am. 73 1765
[7] Klapisch M, Mandelabaum P, Schwob J L 1981 Phys. Lett. A 84 177
[8] Wyart J F, Kleef M A Th, Ryabtsev N A, Joshi N Y 1984 Phys. Scr. 29 319
[9] Beimont E 1988 At. Data Nucl. Data Tables 39 157
[10] Morley P D, Sugar J 1988 Phys. Rev. A 38 3139
[11] Moller G, Trabert E, Heckmann H P 1992 Phys. Scr. 46 36
[12] Sugar J, Trabert E, Moller G, Heckmann H P, Blanke H J, Martinson I 1991 Phys. Scr. 43 484
[13] Träbert E 2011 Phys. Scr. T 144 014004
[14] Mu Z D, Wei Q Y 2005 Acta Phys. Sin. 54 2614 (in Chinese) [牟致栋, 魏琦瑛 2005 物理学报 54 2614]
[15] Cowan R D 1981 Theory of Atomic Structure and Spectra (Berkeley: University of Califomia Press)
[16] Mu Z D, Wei Q Y, Chen D Y 2006 Acta Phys. Sin. 55 4070 (in Chinese) [牟致栋, 魏琦瑛, 陈涤缨 2006 物理学报 55 4070]
[17] Mu Z D, Wei Q Y 2004 Acta Phys. Sin. 53 1742 (in Chinese) [牟致栋, 魏琦瑛 2004 物理学报 53 1742]
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[1] Kim Y K, Baik D H, Indelicato P 1991 Phys. Rev. A 44 148
[2] Blundell S A 1993 Phys. Scr. T 46 144
[3] Safronova U I, Johnson W R, Shlyaptseva A 2003 Phys. Rev. A 67 52507
[4] Sugar J, Musgrove A 1991 Phys. Chem. Ref. Data 20 998
[5] Martinson I 1989 J. Rep. Prog. Phys. 52 157
[6] Reader J, Acquista N 1983 J. Opt. Soc. Am. 73 1765
[7] Klapisch M, Mandelabaum P, Schwob J L 1981 Phys. Lett. A 84 177
[8] Wyart J F, Kleef M A Th, Ryabtsev N A, Joshi N Y 1984 Phys. Scr. 29 319
[9] Beimont E 1988 At. Data Nucl. Data Tables 39 157
[10] Morley P D, Sugar J 1988 Phys. Rev. A 38 3139
[11] Moller G, Trabert E, Heckmann H P 1992 Phys. Scr. 46 36
[12] Sugar J, Trabert E, Moller G, Heckmann H P, Blanke H J, Martinson I 1991 Phys. Scr. 43 484
[13] Träbert E 2011 Phys. Scr. T 144 014004
[14] Mu Z D, Wei Q Y 2005 Acta Phys. Sin. 54 2614 (in Chinese) [牟致栋, 魏琦瑛 2005 物理学报 54 2614]
[15] Cowan R D 1981 Theory of Atomic Structure and Spectra (Berkeley: University of Califomia Press)
[16] Mu Z D, Wei Q Y, Chen D Y 2006 Acta Phys. Sin. 55 4070 (in Chinese) [牟致栋, 魏琦瑛, 陈涤缨 2006 物理学报 55 4070]
[17] Mu Z D, Wei Q Y 2004 Acta Phys. Sin. 53 1742 (in Chinese) [牟致栋, 魏琦瑛 2004 物理学报 53 1742]
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