Table B.3
Presentation of log(𝑔f) values for Si I based on the experimental branching fractions and the theoretical lifetimes of this work together with the wavelength, λ; wavenumber, σ; branching fraction, BF; transition probability, A; and corresponding theoretical log(𝑔f) values of this work.
| Upper Level | Lower Level | λ (nm) | σ (cm−1) | BF | BF Unc. % | Aul (s−1) | log(𝑔f) Experimental | log(𝑔f) Calculated |
|---|---|---|---|---|---|---|---|---|
| 3s23p4p 3D1 |  |
1199.157 | 8336.911 | 0.6373 | 2 | 1.05E+07 | −0.168 ± 0.02 | −0.175 ± 0.02 |
| τ = 60.7 ns |  |
1210.354 | 8259.789 | 0.3158 | 3 | 5.23E+06 | −0.465 ± 0.02 | −0.426 ± 0.02 |
 |
1239.583 | 8065.021 | 0.0165 | 12 | 2.73E+05 | −1.727 ± 0.06 | −1.721 ± 0.02 | |
 |
1422.453 | 7028.190 | 0.0254 | 6 | 4.20E+05 | −1.419 ± 0.03 | −1.457 ± 0.02 | |
| Residual | 0.0051 | |||||||
| 3s23p4p 3D2 |  |
1198.419 | 8342.038 | 0.8351 | 1 | 1.39E+07 | 0.176 ± 0.03 | 0.174 ± 0.02 |
| τ = 60.0 ns |  |
1227.069 | 8147.270 | 0.1582 | 7 | 2.63E+06 | −0.526 ± 0.08 | −0.472 ± 0.02 |
| Residual | 0.0068 | |||||||
| 3s23p4p 3P1 |  |
1066.097 | 9377.438 | 0.3680 | 3 | 8.79E+06 | −0.347 ± 0.02 | −0.340 ± 0.01 |
| τ = 41.9 ns |  |
1074.938 | 9300.316 | 0.4359 | 3 | 1.04E+07 | −0.266 ± 0.01 | −0.263 ± 0.01 |
 |
1097.931 | 9105.548 | 0.1640 | 4 | 3.92E+06 | −0.673 ± 0.02 | −0.631 ± 0.01 | |
 |
1239.015 | 8068.717 | 0.0099 | 22 | 2.35E+05 | −1.789 ± 0.11 | −1.799 ± 0.02 | |
 |
2642.418 | 3784.413 | 0.0046 | 24 | 1.10E+05 | −1.463 ± 0.12 | −1.340 ± 0.10 | |
 |
2654.652 | 3766.972 | 0.0176 | 8 | 4.19E+05 | −0.876 ± 0.04 | −0.904 ± 0.09 | |
| Residual | 0.00001 | |||||||
| 3s23p4p 3P2 |  |
1060.343 | 9428.332 | 0.1973 | 5 | 4.77E+06 | −0.396 ± 0.02 | −0.389 ± 0.01 |
| τ = 41.4 ns |  |
1082.709 | 9233.564 | 0.7798 | 1 | 1.88E+07 | 0.219 ± 0.01 | 0.231 ± 0.01 |
 |
2586.138 | 3866.769 | 0.0161 | 7 | 3.89E+05 | −0.710 ± 0.03 | −0.608 ± 0.09 | |
| Residual | 0.0069 | |||||||
| 3s23p4p 3S1 |  |
1037.126 | 9639.385 | 0.1439 | 6 | 3.10E+06 | −0.824 ± 0.03 | −0.786 ± 0.01 |
| τ = 46. 4 ns |  |
1058.514 | 9444.617 | 0.7915 | 2 | 1.70E+07 | −0.066 ± 0.02 | −0.042 ± 0.01 |
| Residual | 0.0646 |
Notes. Wavelength and wavenumber values are derived from the energy levels given in the NIST database (Kramida et al. 2022). For 2000 Å< λ< 20 000 Å, the wavelength is given in vacuum, otherwise in air. Uncertainties of calculated BF for unobserved residual branches were assumed to be 50%.
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