Abstract:
The “forbidden” Pb 6p2 3P 0 ↦6 p 2 3P1 line at 1278.9 nm is measured by diode laser absorption in a resistively heated hot-pipe filled with a lead vapour and argon as buffer gas. The measurements performed at a temperature of 1170 K and a lead number density of 2.4×10 15 cm-3 yield the oscillator strength f F = (4.5±1.1)×10 -7 which corresponds to a radiative transition probability A F = (6.1±1.5) s-1. Within the error bars, the result is in agreement with theoretical data published by different authors.
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Received 11 October 2000 and Received in final form 5 January 2001
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Vadla, C., Horvatic, V. & Niemax, K. Oscillator strength of the strongly “forbidden” Pb 6 p 2 3P 0 ↦6 p 2 3P 1 transition at 1278.9 nm. Eur. Phys. J. D 14, 23–25 (2001). https://doi.org/10.1007/s100530170229
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DOI: https://doi.org/10.1007/s100530170229