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Table 1

Excitation and detection scheme for the measured levels, and results from this work and comparisons with previous calculations.

Level E/cm-1 Pump channel Detection channel Lifetime/ns
level λ/nm λ/nm this work K13a RU98b

e6G13/2 84 035 a6D9/2 237.99 237 2.1 ± 0.3 1.48 1.57
e6G11/2 84 296 a6D9/2 237.26 236237 2.0 ± 0.2 1.46 1.56
e6G9/2 84 527 a6D7/2 237.69 235238 1.9 ± 0.2 1.45 1.55
e6G7/2 84 710 a6D3/2,7/2 237.10; 238.45 235263 1.8 ± 0.2 1.55 1.55
e6G5/2 84 844 a6D5/2 237.52 235266 1.8 ± 0.2 1.44 1.54
e6G3/2 84 938 a6D1/2 238.21 235236 1.7 ± 0.3 1.43 1.53

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