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Modified Kolbensvedt model for the electron impact K-shell ionization cross-sections of atoms and ions

  • M. A. UddinEmail author
  • A. K.F. Haque
  • K. R. Karim
  • A. K. Basak
  • F. B. Malik
Atomic and Molecular Collisions

Abstract.

A modification of the Kolbensvedt model, MKLV, in terms of ionic, correlation (between the incident and target electrons) and relativistic corrections, is proposed to calculate the K-shell electron impact ionization cross-sections of neutral and ionic targets. The modified model, with a single set of parameters, is found to reproduce satisfactorily the experimental data for the neutral H, Al, Ar, Mn, Ge, Mo, Ag, Sn, Au, Bi and U and ionic Li+, B4+ and O7+ targets better than the existing empirical models from threshold energies to as high as 104 MeV. For the Ag target, the calculations from MKLV follow closely the results of Scofield, and for Au, those of Scofield, and Ndefru and Malik, both done in the relativistic Born approximation with the Møller interaction, at energies higher than the peak region.

Keywords

Neural Network Nonlinear Dynamics Empirical Model Electron Impact Quantum Computing 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2005

Authors and Affiliations

  • M. A. Uddin
    • 1
    Email author
  • A. K.F. Haque
    • 1
  • K. R. Karim
    • 2
  • A. K. Basak
    • 1
  • F. B. Malik
    • 3
    • 4
  1. 1.Department of PhysicsUniversity of RajshahiRajshahiBangladesh
  2. 2.Department of Physics, Department of PhysicsIllinois State UniversityNormalUSA
  3. 3.Department of PhysicsSouthern Illinois UniversityCarbondaleUSA
  4. 4.Department of PhysicsWashington UniversitySt. LouisUSA

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