Electron-impact single ionization cross sections of helium isoelectronic systems
作者： M. Alfaz Uddin , A. K. Basak , B. C. Saha
DOI: 10.1002/QUA.20087
关键词: Relativistic energy 、 Quantum 、 Electron ionization 、 Born approximation 、 Atomic physics 、 Helium 、 Binary number 、 Ionization 、 Chemistry 、 Physical and Theoretical Chemistry 、 Atomic and Molecular Physics, and Optics 、 Condensed matter physics
摘要: The cross sections for electron-impact single ionization of helium-like targets,—Li+, B3+, C4+, N5+, O6+, Ne8+, Na9+, Fe24+, Ag45+, and U90+—are calculated using a recently propounded parameter-free relativistic binary encounter (RBEA) model, which remains valid up to the energy domain. Our RBEA results are compared with those Coulomb–Born (CB) approximation, distorted wave Born approximation (DWBA), two-potential DWBA (RTPD), simple empirical model Brenshtam et al. (BRY), Deutsch Mark (DM) along available experimental data. while keeping comparable predictive power sections, is found overcome limitations BRY DM models their fitting parameters, quantum mechanical CB, DWBA, RTPD theories arduous lengthy calculations. © 2004 Wiley Periodicals, Inc. Int J Quantum Chem,
sci-hub.se 参考文章(47)
Nelson Claytor, B. Feinberg, Harvey Gould, Curtis E. Bemis, Jorge Gomez del Campo, Carl A. Ludemann, Charles R. Vane, Electron impact ionization of U88+-U91+ Physical Review Letters. ,vol. 61, pp. 2081- 2084 ,(1988) , 10.1103/PHYSREVLETT.61.2081
Enrico Clementi, Carla Roetti, Roothaan-Hartree-Fock atomic wavefunctions ,(1974)
S Rachafi, M Zambra, Zhang Hui, M Duponchelle, J Jureta, P Defrance, Electron-impact Ionization of C4+ and O6+ Physica Scripta. ,vol. 1989, pp. 12- 16 ,(1989) , 10.1088/0031-8949/1989/T28/004
S. M. Younger, Electron-impact-ionization cross sections for highly ionized heliumlike atoms Physical Review A. ,vol. 22, pp. 1425- 1428 ,(1980) , 10.1103/PHYSREVA.22.1425
H. Deutsch, D. Margreiter, T. D. M�rk, A semi-empirical approach to the calculation of absolute inner-shell electron impact ionization cross sections European Physical Journal D. ,vol. 29, pp. 31- 37 ,(1994) , 10.1007/BF01437161
R. E. Marrs, S. R. Elliott, D. A. Knapp, Production and Trapping of Hydrogenlike and Bare Uranium Ions in an Electron Beam Ion Trap Physical Review Letters. ,vol. 72, pp. 4082- 4085 ,(1994) , 10.1103/PHYSREVLETT.72.4082
H. Deutsch, K. Becker, T.D. Märk, Absolute and scaled electron-impact ionization cross-sections for hydrogen-, helium-, and lithium-like ions International Journal of Mass Spectrometry and Ion Processes. ,vol. 151, pp. 207- 217 ,(1995) , 10.1016/0168-1176(95)04320-9
M F Gadi, P Defrance, A Makhoute, M H Cherkani, Application of the Semi-Classical Approximation to the Single Electron-Impact Ionization of Helium-Like Ions Physica Scripta. ,vol. 63, pp. 462- 467 ,(2001) , 10.1238/PHYSICA.REGULAR.063A00462
Joseph A. Kunc, Electron-impact ionization rates for excited atoms and ions International Journal of Mass Spectrometry and Ion Physics. ,vol. 40, pp. 43- 51 ,(1981) , 10.1016/0020-7381(81)85005-X
B N Roy, D K Rai, Electron impact ionisation of alkaline earths Journal of Physics B. ,vol. 16, pp. 4677- 4685 ,(1983) , 10.1088/0022-3700/16/24/022