Transition probabilities and lifetimes in gold (Au I and Au II)
Transition probabilities and lifetimes in gold (Au I and Au II)
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DOI：
10.1088/0953-4075/39/17/015
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发表时间：
2006-08
期刊：
影响因子：
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通讯作者：
V. Fivet;P. Quinet;É. Biémont;H. Xu
中科院分区：
文献类型：
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作者：
V. Fivet;P. Quinet;É. Biémont;H. Xu
用时间分辨激光诱导荧光技术测量了中性金（Au I）的三个奇宇称能级和单电离金（Au II）的一个奇宇称能级的辐射寿命，并考虑组态相互作用和核极化效应，对相对论Hartree-Fock原子结构模型的可靠性进行了检验.强调了在计算中纳入后一种效应的重要性。激光诱导荧光寿命，结合理论分支分数，使我们能够推导出振子强度为6个5d 96 s2 - 5d 96 s6 p和5d 106 s-5d 96 s6 p跃迁的Au I和63个5d 96 s-5d 96 p，5d 96 p-5d 97 s和5d 10 - 5d 96 p UV跃迁的Au II。
Radiative lifetimes of three odd-parity levels of neutral gold (Au I) and one odd-parity level of singly ionized gold (Au II), measured using the time-resolved laser-induced fluorescence technique, have allowed the testing of the reliability of a relativistic Hartree–Fock model of the atomic structure taking configuration interaction and core-polarization effects into account. The importance of the inclusion of the latter effects in the calculations is emphasized. The laser-induced fluorescence lifetimes, combined with the theoretical branching fractions, have allowed us to deduce oscillator strengths for six 5d96s2–5d96s6p and 5d106s–5d96s6p transitions of Au I and for sixty-three 5d96s–5d96p, 5d96p–5d97s and 5d10–5d96p UV transitions of Au II.