Spherical versus nonspherical plasma-screening effects on semiclassical electron{endash}ion collisional excitations in weakly coupled plasmas
- Department of Physics, Hanyang University, Ansan, Kyunggi-Do 425-791, South (Korea)
Spherical and nonspherical plasma-screening effects are investigated on electron-impact excitation of hydrogenic ions in weakly coupled plasmas. Semiclassical straight-line trajectory method is used to describe the behavior of the projectile electron. Scaled 1{ital s}{r_arrow}2{ital p}{sub {minus}1} semiclassical excitation probabilities are obtained by the spherical and nonspherical Debye{endash}H{umlt u}ckel interaction potentials. The plasma-screening effect of the bound atomic wave functions in the transition probability obtained by the spherical Debye{endash}H{umlt u}ckel model is found to be more effective than that in the transition probability obtained by the nonspherical Debye{endash}H{umlt u}ckel model. The maximum position of the transition probability obtained by the nonspherical Debye{endash}H{umlt u}ckel potential is more receded from the nucleus than that of transition probability obtained by the spherical Debye{endash}H{umlt u}ckel potential. {copyright} {ital 1996 American Institute of Physics.}
- OSTI ID:
- 286948
- Journal Information:
- Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 9 Vol. 3; ISSN PHPAEN; ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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