Radiative lifetime and transition probabilities in Cd I and Cd II
- Department of Physics, Lund Institute of Technology, P.O. Box 118, S-221 00 Lund (Sweden)
Radiative lifetimes of 11 levels belonging to the 5s5p {sup 1}P{sup o}{sub 1}, 5snd {sup 3}D{sub 1,2} (n=6-9) and 5sns {sup 3}S{sub 1} (n=7,8) series of Cd I, and of 5 levels of Cd II (i.e., 4d{sup 10}5p {sup 2}P{sup o}{sub 1/2,3/2}, 4d{sup 10}6s {sup 2}S{sub 1/2}, and 4d{sup 10}5d {sup 2}D{sub 3/2,5/2}) have been measured using the time-resolved laser-induced fluorescence technique. Free neutral and singly ionized cadmium atoms have been generated by laser ablation. Single- or two-step excitation processes were considered to populate the levels under study. Branching fractions of Cd II transitions have been measured by laser-induced breakdown spectroscopy. Transition probabilities and oscillator strengths for Cd I and Cd II spectral lines originating from the above states as well as from the 4d{sup 9}5s{sup 2} {sup 2}D{sub 3/2,5/2} states of Cd II have been deduced by combining the experimental lifetimes and theoretical branching fractions obtained in multiconfigurational relativistic Hartree-Fock calculations taking core-polarization effects into account.
- OSTI ID:
- 20646360
- Journal Information:
- Physical Review. A, Vol. 70, Issue 4; Other Information: DOI: 10.1103/PhysRevA.70.042508; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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