Radiative Lifetimes of Doubly Ionized Terbium  

作　　者：徐淮良 蒋占魁 

机构地区：[1]Department of Physics, Yantai University, Yantai 264005 [2]Department of Physics, Jilin University, Changchun 130023 [3]Department of Physics, Lund Institute of Technology, 130 Box 118, S-221 00 Lund, Sweden

出　　处：《Chinese Physics Letters》2005年第11期2798-2800,共3页中国物理快报（英文版）

基　　金：Supported by the Swedish Natural Science Research Council and the National Natural Science Foundation of China under No 10274025.

摘　　要：Radiative lifetimes of two short-lived levels （i.e. 4f^8 （TF6）6p^1/2 （6, 1/2）11/2,13/2） in Tb Ⅲ are measured by time-resolved laser-induced fluorescence （LIE） technique with a two-step excitation process. Free Tb Ⅲ ions are produced in a laser-induced plasma. Lifetime values are evaluated with a deconvolution procedure of the timeresolved fluorescence signal with the temporal shape of second-step excitation pulse （about 1 ns）. The lifetimes of the 4f^8 （^7F6）6p^1/2 （6, 1/2）11/2 and 4f^8（^7F6）6p^1/2 （6, 1/2）13/2 levels are determined to be 1.9 （2） and 2.0 （2）ns, respectively.Radiative lifetimes of two short-lived levels （i.e. 4f^8 （TF6）6p^1/2 （6, 1/2）11/2,13/2） in Tb Ⅲ are measured by time-resolved laser-induced fluorescence （LIE） technique with a two-step excitation process. Free Tb Ⅲ ions are produced in a laser-induced plasma. Lifetime values are evaluated with a deconvolution procedure of the timeresolved fluorescence signal with the temporal shape of second-step excitation pulse （about 1 ns）. The lifetimes of the 4f^8 （^7F6）6p^1/2 （6, 1/2）11/2 and 4f^8（^7F6）6p^1/2 （6, 1/2）13/2 levels are determined to be 1.9 （2） and 2.0 （2）ns, respectively.

关 键 词：TRANSITION-PROBABILITIES OSCILLATOR-STRENGTHS PECULIAR LINES TBII 

分 类 号：O644.2[理学—物理化学]