The European Physical Journal D

, Volume 51, Issue 3, pp 331–339 | Cite as

H+ and He 2+ impact single and double ionization of lead

  • Dr. Minakshi
  • L. K. Jha
  • S. N. Chatterjee
  • B. N. Roy
Atomic and Molecular Collisions Regular Article
  • 46 Downloads

Abstract

H+ and He2+ impact single and double ionization cross sections of ground state lead atoms have been calculated in the binary encounter approximation. Calculations of direct double ionization cross sections have been performed in the modified double binary encounter model. The accurate expressions of σΔE (cross-section for energy transfer ΔE) and Hartree-Fock velocity distributions for the target electrons have been used throughout the calculations. Contributions to double ionization from Auger effect following ionization of inner shells have been considered in the present work. Our H+ impact single and double ionization cross sections are in good agreement with the experimental observations. In calculations of He2+ impact cross sections, the present theoretical approach shows limited success in the experimentally investigated region (50–350 keV amu-1).

PACS

34.50.Fa Electronic excitation and ionization of atoms including beam-foil excitation and ionization 

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Dr. Minakshi
    • 1
  • L. K. Jha
    • 1
  • S. N. Chatterjee
    • 1
  • B. N. Roy
    • 2
  1. 1.Department of PhysicsBRA Bihar UniversityBiharIndia
  2. 2.Professor’s Colony, Aghoria Bazar, Muzaffarpur 842002BiharIndia

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