Lifetimes, transition probabilities, and level energies in Fe i
Lifetimes, transition probabilities, and level energies in Fe i
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DOI：
10.1364/josab.8.001185
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发表时间：
1991-06
影响因子：
1.9
通讯作者：
T. R. O'Brian;M. Wickliffe;J. Lawler;W. Whaling;J. W. Brault
中科院分区：
文献类型：
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作者：
T. R. O'Brian;M. Wickliffe;J. Lawler;W. Whaling;J. W. Brault
我们使用时间分辨激光诱导荧光测量了能量在25900到60758厘米之间的186Fe能级的寿命。测量了这些能级的发射分支分数，得到了225-2666 nm范围内1174个跃迁的跃迁几率。通过对电感耦合等离子体光谱源中的能级布居进行内插，我们发现了另外640个Fe跃迁几率。我们通过比较我们的跃迁概率和牛津小组测量的吸收振子强度来证明插值法的可靠性[Blackwell等，Mon.不。R·阿斯特龙。SoC。201、595-602(1982)]。我们推导出精确的Fe能级能量，以支持用于识别光谱中的跃迁的自动化方法。
We use time-resolved laser-induced fluorescence to measure the lifetime of 186 Fe levels with energies between 25 900 and 60 758 cm . Measured emission branching fractions for these levels yield transition probabilities for 1174 transitions in the range 225-2666 nm. We find another 640 Fe transition probabilities by interpolating level populations in the inductively coupled plasma spectral source. We demonstrate the reliability of the interpolation method by comparing our transition probabilities with absorption oscillator strengths measured by the Oxford group [Blackwell et al., Mon. Not. R. Astron. Soc. 201, 595-602 (1982)]. We derive precise Fe level energies to support the automated method that is used to identify transitions in our spectra.