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Table 2

Wavelengths of K-shell transitions in Si xi.

Index Lower level(Jπ) Upper level(Jπ) λ a λ b λ c λ d λe (Å)

1 (0e) (0e) 6.784 6.782 6.780 ... 6.772
2 (1o) 1s1 / 22s1 / 22p1 / 22p3 / 2 (2e) 6.888 6.887 ... ... 6.874
3 (1o) 1s1 / 22s1 / 22p1 / 22p3 / 2 (0e) 6.803 6.803 6.804 ... ...
4 (1o) 1s1 / 22s1 / 22p1 / 22p3 / 2 (2e) 6.825 6.823 ... 6.821 ...
5 (1o) 1s1 / 22s1 / 22p1 / 22p3 / 2 (1e) 6.790 6.788 6.788 ... 6.774
6 (1e) (2o) 6.821 6.822 6.824 ... ...
7 (2e) (2o) 6.811 6.811 6.811 6.810 ...

Notes. λa: present 680 level calculations with FAC code. λb: calculations with HFR (Palmeri et al. 2008). λc: laser plasma experimental results from Faenov et al. (1994). λd: beam foil experimental results from Trabert et al. (1979). λe: beam foil experimental results from Mosnier et al. (1986).

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