Generalized oscillator strengths for the valence-shell excitations of neon

被引：27

作者：

Cheng, HD ^{[1
]}

Zhu, LF ^{[1
]}

Yuan, ZS ^{[1
]}

Liu, XJ ^{[1
]}

Sun, JM ^{[1
]}

Jiang, WC ^{[1
]}

Xu, KZ ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Modern Phys, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China

来源：

PHYSICAL REVIEW A | 2005年 / 72卷 / 01期

关键词：

D O I：

10.1103/PhyseRevA.72.012715

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The generalized oscillator strengths for the valence-shell excitations to 2p(5)3s, 2p(5)3p, and 2p(5)4s of neon were measured with an angle-resolved fast-electron energy-loss spectrometer at an incident electron energy of 2500 eV. The transition multipolarities for these excitations were elucidated with the help of the calculated intermediate-coupling coefficients using the COWAN code. The generalized oscillator strength profiles for the electric monopole, electric dipole, and electric quadrupole excitations were analyzed and their positions of the extrema were obtained. Furthermore, the experimental generalized oscillator strength ratios between the excitations to 2p(5)4s[3/2](1) and 2p(5)4s(')[1/2](1) were determined and found to be in agreement with the calculated intermediate-coupling coefficient ratio.

引用

页数：7

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