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Indexed by:期刊论文

Date of Publication:2002-06-01

Journal:Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

Included Journals:Scopus、EI

Volume:193

Issue:1-4

Page Number:204-208

ISSN No.:0168583X

Abstract:Dielectric-response formalism is used to obtain the dynamical interaction potential among the ions in a fast molecule as a sum of a radially symmetric screened Coulomb potential and an asymmetric wake potential. The influence of the wake-potential asymmetry on the electrons bound at each constituent ion in the molecule is described within the Brandt-Kitagawa theoretical framework, and it is found that the charge state of the leading ion may be significantly different from that of the trailing ion. The effects of such ion-charge asymmetry on the Coulomb explosions dynamics of the molecular ion are studied by solving the equations of motion for the constituent ions. ? 2002 Elsevier Science B.V. All rights reserved.