Generalized oscillator strengths of the low-lying valence-shell excitations of N2, O2, and C2H2 studied by fast electron and inelastic x-ray scattering

2019 ◽  
Vol 150 (9) ◽  
pp. 094302 ◽  
Author(s):  
Ya-Wei Liu ◽  
Yi-Geng Peng ◽  
Tao Xiong ◽  
Shu-Xing Wang ◽  
Xin-Chao Huang ◽  
...  
Keyword(s):  
Fast Electron ◽  
Oscillator Strengths ◽  
Valence Shell ◽  
X Ray ◽  
X Ray Scattering ◽  
Generalized Oscillator ◽  
Ray Scattering

Oscillator strength study of the excitations of valence-shell of C2H2 by high-resolution inelastic x-ray scattering

2021 ◽  
Author(s):  
Qiang Sun ◽  
Ya-Wei Liu ◽  
Yuan-Chen Xu ◽  
Li-Han Wang ◽  
Tian-Jun Li ◽  
...  
Keyword(s):  
High Resolution ◽  
Theoretical Models ◽  
High Energy ◽  
Oscillator Strengths ◽  
Electron Collision ◽  
Valence Shell ◽  
X Ray ◽  
X Ray Scattering ◽  
Theoretical Results ◽  
Ray Scattering

Abstract The oscillator strengths of the valence-shell excitations of C2H2 are extremely important for testing theoretical models and studying interstellar gases. In this study, the high-resolution inelastic x-ray scattering (IXS) method is adopted to determine the generalized oscillator strengths (GOSs) of the valence-shell excitations of C2H2 at a photon energy of 10 keV. The GOSs are extrapolated to their zero limit to obtain the corresponding optical oscillator strengths (OOSs). Through taking a completely different experimental method of the IXS, the present results offer the high energy limit for electron collision to satisfy the first Born approximation (FBA) and cross-check the previous experimental and theoretical results independently. The comparisons indicate that an electron collision energy of 1500 eV is not enough for C2H2 to satisfy the FBA for the large squared momentum transfer, and the line saturation effect limits the accuracy of the OOSs measured by the photoabsorption method.

The generalized oscillator strengths for the valence shell excitations in helium by fast electron impact

2004 ◽  
Vol 135 (1) ◽  
pp. 15-20 ◽  
Author(s):  
Xiao-Jing Liu ◽  
Lin-Fan Zhu ◽  
Zhen-Sheng Yuan ◽  
Wen-Bin Li ◽  
Hua-Dong Cheng ◽  
...  
Keyword(s):  
Electron Impact ◽  
Fast Electron ◽  
Oscillator Strengths ◽  
Valence Shell ◽  
Generalized Oscillator

scholarly journals Integral cross sections of the dipole-allowed excitations of nitrogen studied by fast electron scattering and X-ray scattering

2017 ◽  
Vol 875 ◽  
pp. 062012
Author(s):  
Ya-Wei Liu ◽  
Long-Quan Xu ◽  
Dong-Dong Ni ◽  
Xin Xu ◽  
Xin-Chao Huang ◽  
...  
Keyword(s):  
Electron Scattering ◽  
Cross Sections ◽  
Fast Electron ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Fast electron dynamics in vanadates measured by resonant inelastic x-ray scattering

2013 ◽  
Vol 107 ◽  
pp. 144-146 ◽  
Author(s):  
G. Herrera ◽  
J. Jiménez-Mier ◽  
R.G. Wilks ◽  
A. Moewes ◽  
W. Yang ◽  
...  
Keyword(s):  
Fast Electron ◽  
Electron Dynamics ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering
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