The non-relativistic absolute values and shapes of the
cross sections for the process of two-photon one-electron
excitation-ionization of the 1s shell of highly charged
positive atomic ions Ne6+ and Ne8+ are calculated using second-order
quantum-mechanical perturbation theory, taking into
account the many-particle effect of relaxation of the ion
residue in the field of the virtual vacancies created.
The many-particle effect of stabilization of the deep
vacancy when changing target from the neutral atom to the
highly charged positive ions is also taken into account.
The calculations are fulfilled for both linearly and
circularly polarized incident photons.
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