The dynamic plasma screening effects on the atomic ionization process are investigated in K-Maxwellian distribution plasmas using the semiclassical analysis. The projectile-target interaction Hamiltonian in the momentum space is obtained by the plasma dielectric function in K-Maxwellian distribution plasmas. The semiclassical ionization probability is obtained as a function of the impact parameter b, projectile electron energy E, Debye length A, spectral index K, and velocity ratio v/v(Th). It is found that the dynamic screening effect increases for small velocity. ratios and decreases for large velocity ratios with the decreasing spectral index. (C) 2005 American Institute of Physics.
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