Please wait a minute...
Chinese Physics, 2004, Vol. 13(7): 1018-1024    DOI: 10.1088/1009-1963/13/7/009
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

Total cross sections for scattering of electrons from O2, H2O, H2, O3, CO and CO2 at 100-2000eV

Shi De-Heng (施德恒)abc, Sun Jin-Feng (孔金锋)ab, Yang Xiang-Dong (杨向东)a, Zhu Zun-Lue (朱遵略)b, Liu Yu-Fang (刘玉芳)b
a Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China; b Department of Physics, Henan Normal University, Xinxiang 453002, China; c Department of Foundation, The First Aeronautical College of Air Force, Xinyang 464000, China
Abstract  A complex optical model potential rewritten by the concept of bonded atom, which considers the overlap of electron clouds, is employed to calculate the total cross sections for electron scattering from several simple molecules (O$_2$, H$_2$O, H$_2$, O$_3$, CO and CO$_2$) consisting of C, H and O atoms in an incident energy range of 100-2000eV by the use of the additivity rule at Hartree-Fock level. In the study, the complex optical potential composed of static, exchange, correlation polarization plus absorption contributions firstly uses the bonded-atom concept. The quantitative molecular total cross section results are compared with experimental data and with the other calculations wherever available and good agreement is obtained. It is shown that the additivity rule along with the complex optical model potential rewritten by the concept of bonded atom can be used successfully to calculate the total cross section of electron-molecule scattering above 100eV, whereas the rule together with the complex optical model potential not rewritten by the concept of bonded atom is only successfully used above 300-500eV. So, the introduction of the bonded-atom concept in the complex optical potential can improve the accuracy of the total cross section calculations.
Keywords:  atomic and molecular collision      additivity rule      bonded atom      total cross section  
Received:  09 September 2003      Revised:  01 February 2004      Accepted manuscript online: 
PACS:  34.80.-i (Electron and positron scattering)  
  31.15.-p (Calculations and mathematical techniques in atomic and molecular physics)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No 10174019).

Cite this article: 

Shi De-Heng (施德恒), Sun Jin-Feng (孔金锋), Yang Xiang-Dong (杨向东), Zhu Zun-Lue (朱遵略), Liu Yu-Fang (刘玉芳) Total cross sections for scattering of electrons from O2, H2O, H2, O3, CO and CO2 at 100-2000eV 2004 Chinese Physics 13 1018

[1] Electron-impact ionization cross section calculations for lithium-like ions
Guo-Jie Bian(卞国杰), Jyh-Ching Chang(张稚卿), Ke-Ning Huang(黄克宁), Chen-Sheng Wu(武晨晟), Yong-Jun Cheng(程勇军), Kai Wang(王凯), and Yong Wu(吴勇). Chin. Phys. B, 2022, 31(1): 013401.
[2] Loss of cold atoms due to collisions with residual gases in free flight and in a magneto-optical trap
Jing-feng Xiang(项静峰), He-nan Cheng(程鹤楠), Xiang-kai Peng(彭向凯), Xin-wen Wang(王新文), Wei Ren(任伟), Jing-wei Ji(吉经纬), Kang-kang Liu(刘亢亢), Jian-bo Zhao(赵剑波), Lin Li(李琳), Qiu-zhi Qu(屈求智), Tang Li(李唐), Bin Wang(汪斌), Mei-feng Ye(叶美凤), Xin Zhao(赵鑫), Yuan-yuan Yao(姚媛媛), De-Sheng Lü(吕德胜), Liang Liu(刘亮). Chin. Phys. B, 2018, 27(7): 073701.
[3] Influence of electron correlations on double-capture process in proton helium collisions
Hoda Ghavaminia, Ebrahim Ghanbari-Adivi. Chin. Phys. B, 2015, 24(7): 073401.
[4] Projectile angular-differential cross sections for single electron transfer in fast He+-He collisions
Ebrahim Ghanbari-Adivi, Hoda Ghavaminia. Chin. Phys. B, 2015, 24(3): 033401.
[5] Total cross sections for electron scattering from sulfur compounds
Tan Xiao-Ming (谭晓明), Wang Yan-Wen (王艳文). Chin. Phys. B, 2013, 22(2): 023403.
[6] Total cross sections for electron scattering from fluoromethanes: A revised additivity rule method
Tan Xiao-Ming(谭晓明) and Zhao Gang(赵刚) . Chin. Phys. B, 2012, 21(6): 063402.
[7] Positron scattering and ionization of neon atoms —— theoretical investigations
Harshit N. Kothari and K. N. Joshipura. Chin. Phys. B, 2010, 19(10): 103402.
[8] Elastic scattering of two ground-state N atoms
Zhang Xiao-Niu(张小妞), Shi De-Heng(施德恒), Sun Jin-Feng(孙金锋), and Zhu Zun-Lue(朱遵略). Chin. Phys. B, 2010, 19(1): 013501.
[9] Investigations on molecular constants of the CD(X2$\Pi$) radical and elastic collisions between ground-state C and D atoms at low temperatures
Shi De-Heng(施德恒), Zhang Jin-Ping(张金平), Sun Jin-Feng(孙金锋), Liu Yu-Fang(刘玉芳), and Zhu Zun-Lüe(朱遵略). Chin. Phys. B, 2009, 18(9): 3856-3864.
[10] Elastic collisions between Si and D atoms at low temperatures and accurate analytic potential energy function and molecular constants of the SiD(X2$\Pi$) radical
Shi De-Heng(施德恒), Zhang Jin-Ping(张金平), Sun Jin-Feng(孙金锋), and Zhu Zun-Lue(朱遵略). Chin. Phys. B, 2009, 18(6): 2250-2257.
[11] Additivity rule for electron--molecule total cross section calculations at 50--5000eV: a new geometrical approach
Shi De-Heng(施德恒), Sun Jin-Feng(孙金锋), Zhu Zun-Lüe(朱遵略), and Liu Yu-Fang(刘玉芳) . Chin. Phys. B, 2008, 17(6): 2103-2109.
[12] Elastic collisions of sulfur and hydrogen in their ground states at low temperatures and spectroscopic parameters of SH(X2$\varPi$) radical
Shi De-Heng(施德恒), Zhang Jin-Ping(张金平), Sun Jin-Feng(孙金锋), Liu Yu-Fang(刘玉芳), Zhu Zun-Lüe(朱遵略), Ma Heng(马恒), and Yang Xiang-Dong(杨向东). Chin. Phys. B, 2008, 17(10): 3678-3686.
[13] Ab initio calculation on accurate analytic potential energy functions and harmonic frequencies of c3$\Sigma$+g and B1$\Pi$u states of dimer 7Li2
Yu Ben-Hai(余本海), Shi De-Heng(施德恒), Sun Jin-Feng(孙金锋), Zhu Zun-Lue(朱遵略), Liu Yu-Fang(刘玉芳), and Yang Xiang-Dong(杨向东). Chin. Phys. B, 2007, 16(8): 2371-2377.
[14] Absolute differential, elastic integrated and moment transfer cross sections for electron--OCS collisions at intermediate and high energies
Shi De-Heng(施德恒), Sun Jin-Feng(孙金锋), Zhu Zun-Lue(朱遵略), Ma Heng(马恒), Liu Yu-Fang(刘玉芳), and Yang Xiang-Dong(杨向东). Chin. Phys. B, 2007, 16(6): 1655-1659.
[15] A modification potential method of calculating total cross sections of electrons scattering from complex molecules C2H6, C2F6,C6H6 and C6F6 at 100eV--5000eV
Shi De-Heng (施德恒), Sun Jin-Feng (孙金锋), Zhu Zun-Lue (朱遵略), Liu Yu-Fang (刘玉芳), Yang Xiang-Dong (杨向东). Chin. Phys. B, 2006, 15(6): 1278-1283.
No Suggested Reading articles found!