Radiative lifetime measurements of highly excited even-parity levels of Eu I

被引：4
|
作者：
Zhang, Wei [1 ,2 ]
Du, Shan [1 ,2 ]
Feng, Yanyan [1 ,2 ]
Jiang, Liyun [1 ,2 ]
Jiang, Zhankui [1 ,2 ]
Dai, Zhenwen [1 ,2 ,3 ]
机构：
[1] Jilin Univ, Coll Phys, Changchun 130012, Peoples R China
[2] Minist Educ, Key Lab Coherent Light Atom & Mol Spect, Changchun 130012, Peoples R China
[3] Jilin Univ, Inst Atom & Mol Phys, Changchun 130012, Peoples R China
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2011年 / 413卷 / 03期
基金：
中国国家自然科学基金;
关键词：
atomic data; atomic processes; methods: laboratory; techniques: spectroscopic; ABSOLUTE TRANSITION-PROBABILITIES; SOLAR ABUNDANCE;
D O I：
10.1111/j.1365-2966.2011.18257.x
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Natural radiative lifetime measurements have been performed for 186 even-parity highly excited levels of neutral europium in the energy range from 27852.90 to 45106.83 cm-1 using a time-resolved laser-induced fluorescence technique in a laser-produced plasma. This work is the largest-scale laboratory study to date of Eu i radiative lifetimes using modern methods. The lifetime values measured in this paper are in the range from 17.0 to 3569 ns. Comparison with previous data reveals a good level of agreement. Unique J-values of the 43438.19- and 43637.11-cm-1 levels have been assigned. The present work will be useful for extending the set of oscillator strengths available for Eu i.
引用
收藏
页码：1803 / 1809
页数：7
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