Classification of 3-3 transitions in neonlike germanium in laser-produced plasma

Abstract

Abstract. Classification of 3-3 transitions in neonlike germanium in laser-produced plasma has been made. The spectra have been observed in the range of 185-290 using a high resolving power (2/A2 ~ 13000) grazing-incidence spectrometer in XUV laser experiment. A total of 21 lines (including five lasing lines) have been classified as transitions between the 2s 2 2p 5 3s, 3p, 3d or 2s 2p 6 3p, 3 d and sodiumlike germanium configurations. The identified transitions have been used to derive energy levels of 2s 2 2p531 in neonlike germanium. The experimental resuits have been compared with theoretical predictions from Dirac-Fock (MCDF) calculations.