The radiative lifetime of 14 levels in the z⁵F, z⁵D, and z⁵G terms of Co ii have been measured with use of time-resolved laser fluorescence spectroscopy with a Co⁺-ion beam. Our lifetime values are shorter by 15–50 % than earlier results from beam-foil time-of-flight measurements. The lifetimes were converted to 41 individual transition probabilities with use of branching ratios measured on spectra recorded with the 1-m Fourier-transform spectrometer at the Kitt Peak National Observatory. On average our transition probabilities agree with those of Kurucz and Peytremann; for ΔS=1 transitions their calculated values are lower than our experimental results by a factor of ∼(1/4).

Title

Phys. Rev. A 31, 744–749 (1985)

Publisher

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Publisher Country

Palestine

Publication Type

Both (Printed and Online)

Volume

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Year

1985

Pages

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