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Eikonal-Glauber Thomas–Fermi model for atomic collisions with many-electron atoms for plasma applications

Published online by Cambridge University Press:  25 June 2018

Myoung-Jae Lee  and
Young-Dae Jung Open the ORCID record for Young-Dae Jung [Opens in a new window]
Myoung-Jae Lee
Affiliation:
Department of Physics, Hanyang University, Seoul 04763, South Korea Research Institute for Natural Sciences, Hanyang University, Seoul 04763, South Korea
Young-Dae Jung
Affiliation:
Department of Electrical and Computer Engineering, MC 0407, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0407, USA Department of Applied Physics and Department of Bionanotechnology, Hanyang University, Ansan, Kyunggi-Do 15588, South Korea
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Abstract

We have derived the universal eikonal-Glauber Thomas–Fermi model for atomic collision cross-sections with many-electron atoms, such as iron and tungsten atoms, including the influence of atomic screening in fusion devices and plasma technologies. The eikonal-Glauber method is employed to obtain the analytic expressions for the effective atomic charge, the scattering phase shift and the atomic cross-section in terms of the atomic form factor and the Mott–Massey screening parameter. The result shows that the effective atomic charge would be the same as the case of the net nuclear charge for the large momentum transfer domain and becomes zero without momentum transfer due to the influence of bound atomic electrons. It is shown that the eikonal scattering phase shift and the total eikonal-Glauber scattering cross-section increase with increasing charge number $Z$ of the nucleus of the target atom. It is also found that the charge dependence of the total eikonal-Glauber scattering cross-section decreases with an increase of the scaled collision energy since the atomic form factor is small for large collision energies.

Keywords

fusion plasmaplasma applications
Type
Research Article
Information
Journal of Plasma Physics , Volume 84 , Issue 3 , June 2018 , 905840313
Copyright
© Cambridge University Press 2018 

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