THE MULTICHARGED ION PLASMA UNDER EXTERNAL LASER PULSE: CALCULATION OF ITS KEY PARAMETERS br

The paper presents a numerical study of laser radiation interaction with cylindrical plasma medium. The model has been described in detail. Non-equilibrium sodium ions were chosen as the active medium and a CO2-laser as an external irradiator. The calculations used the one-dimensional two-temperature single-fluid radiative-hydrodynamic approximation tak-ing into account the non-equilibrium ionic composition and the radiation absorption by plasma due to the inverse bremsstrahlung effect. In the calculations, the used laser pulse characteristics belonged to the range well-studied experimentally; e.g. the intensity of the incident laser ra-diation was about 100 TW/cm boolean AND 2. The performed calculations were aimed at the development of research on the creation of active laser media based on the multicharged ions' transitions working in the extreme UV and soft X-ray bands