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Additivity rule for electron scattering on hydrocarbon molecules—considering two different shielding effects
引用本文:孙金锋,杜朝玲,施德恒,刘玉芳.Additivity rule for electron scattering on hydrocarbon molecules—considering two different shielding effects[J].中国物理 B,2004,13(9):1418-1422.
作者姓名:孙金锋  杜朝玲  施德恒  刘玉芳
作者单位:Department of Physics, Henan Normal University, Xinxiang 453002, China; China Center of Advanced Science and Technology (World Laboratory), PO Box 8730, Beijing 100080, China;Department of Physics, Henan Normal University, Xinxiang 453002, China;Department of Physics, Henan Normal University, Xinxiang 453002, China;Department of Physics, Henan Normal University, Xinxiang 453002, China; China Center of Advanced Science and Technology (World Laboratory), PO Box 8730, Beijing 100080, China
基金项目:Project supported by the National Natural Science Foundation of China (Grant No 10174019).
摘    要:Considering the overlapping among atoms in the molecule and the not full transparency of the molecule by electron, we propose a new formulation of the additivity rule (AR). Here the new AR is employed to calculate the total cross sections (TCS) for electron scattering on hydrocarbon molecules C_2H_2, C_2H_4, C_2H_6, and C_3H_8 over an incident energy range of 10-2000eV. The results are compared with the experimental data and other available theoretical calculations. This gives good agreement.

关 键 词:电子散射  叠加原理  烃分子  分子物理学  总截面  有效截面系数
收稿时间:2003-07-21

Additivity rule for electron scattering on hydrocarbon molecules—considering two different shielding effects
Sun Jin-Feng,Du Chao-Ling,Shi De-Heng and Liu Yu-Fang.Additivity rule for electron scattering on hydrocarbon molecules—considering two different shielding effects[J].Chinese Physics B,2004,13(9):1418-1422.
Authors:Sun Jin-Feng  Du Chao-Ling  Shi De-Heng and Liu Yu-Fang
Institution:Department of Physics, Henan Normal University, Xinxiang 453002, China; Department of Physics, Henan Normal University, Xinxiang 453002, China; China Center of Advanced Science and Technology (World Laboratory), PO Box 8730, Beijing 100080, China
Abstract:Considering the overlapping among atoms in the molecule and the not full transparency of the molecule by electron, we propose a new formulation of the additivity rule (AR). Here the new AR is employed to calculate the total cross sections (TCS) for electron scattering on hydrocarbon molecules C_2H_2, C_2H_4, C_2H_6, and C_3H_8 over an incident energy range of 10-2000eV. The results are compared with the experimental data and other available theoretical calculations. This gives good agreement.
Keywords:additivity rule  total cross sections  effective cross section coefficient
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