Oscillator strength and cross section study of the valence-shell excitations of NO_(2) by fast electron scattering  

作　　者：孙强 陈锦峰 聂智伟 朱剑辉 朱林繁 Qiang Sun;Jin-Feng Chen;Zhi-Wei Nie;Jian-Hui Zhu;Lin-Fan Zhu(Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China

出　　处：《Chinese Physics B》2023年第11期201-206,共6页中国物理B（英文版）

基　　金：Project supported by the National Key Research and Development Program of China (Grant No. 2022YFA1602500);the National Natural Science Foundation of China (Grant Nos. 12334010 and U1932207)。

摘　　要：Oscillator strengths and cross sections of the valence-shell excitations in NO_(2)are of great significance in testing the theoretical calculations and monitoring the state of the ozone layer in the earth’s atmosphere. In the present work, the generalized oscillator strengths of the valence-shell excitations in NO_(2)were obtained based on the fast electron scattering technique at an incident electron energy of 1.5 ke V and an energy resolution of about 70 me V. By extrapolating the generalized oscillator strengths to the limit of a zero squared momentum transfer, the optical oscillator strengths for the dipole-allowed transitions have been obtained, which provide an independent cross check to the previous experimental results. Based on the BE-scaling method, the corresponding integral cross sections have also been derived systematically from the excitation threshold to 5000 eV. The present dynamic parameters can provide the fundamental spectroscopic data of NO_(2)and have important applications in the studies of atmospheric science. The datasets presented in this paper, including the GOSs, OOSs and ICSs, are openly available at https://doi.org/10.57760/sciencedb.j00113.00156.

关 键 词：nitrogen dioxide oscillator strength integral cross section electron scattering 

分 类 号：P402[天文地球—大气物理学与大气环境]