CONICET | Buscador de Institutos y Recursos Humanos

Reyna Almandos J. 1, Bredice F. 1, Raineri M.1, Gallardo M.1 1Centro de Investigaciones Opticas, La Plata, Argentina In this presentation we report an overview of some studies concerning the spectral analysis of different ions of noble gases with implications to astronomy and laser physics. Studies of emission spectra of noble gas ions have been carried out in La Plata for more than forty years, several of them in collaboration with other groups. Knowledge of atomic parameters of neon, argon, krypton and xenon in intermediate and high degrees of ionization is important not only to understand laser emission mechanisms, but also to help in the study of different plasma conditions. The spectra were excited using pulsed discharges and recorded from the VUV to the IR regions. In some cases temporal resolution was used. From these studies new energy levels, lifetimes, wavelengths, intensities of the observed transitions and oscillator strengths were established. To support the analysis, regularities belonging to the atomic structure, relativistic Hartree-Fock and Dirac-Fock calculations were used.