The laser resonant ionization of the soudium atoms in conditions of radiation transfer

The numerical modeling of the process of the laser resonant ionization of the sodium vapors in conditions of radiation transfer on the atomic transition 3S1/2 $\longleftrightarrow$ 3P3/2 with wavelength 589 nm is executed. The physical and mathematical model included: the non-stationary kinetic equations for two level atomic populations, the equations for electronic density and electronic temperature; the radiation transfer equation. The numerical method of the received system of the integro-differential equations is developed for three-dimensional on a spatial variables configuration of volume, looking like final cylinder. The influence of the radiation transfer on kinetics of ionization, excitation and luminescence of the sodium vapors is investigated for a case of photoexcitation of the entire atomic volume and photoexcitation of the small area of the sodium vapors by spatial-limited in the cross section laser beam.