Ab initio Al XI and S XIV spectra. Transient population inversions in laser-produced plasmas
Authors:
- 14 March 1987
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 20 (5) , 919-934
Abstract
Ab initio Al XI and S XIV wavelengths below 400 AA involving transitions between 1s2nl 2LJ levels up to n=7 are reported. The accuracy is better than 1% in all cases where existing data allow for comparison. Corresponding transition probabilities are given. A time-dependent collisional radiative model is used to calculate the populations of Al10+ states in laser-produced plasmas. Population inversions occur between n=5, n=4 and n=3 levels at well defined times of the plasma recombination phase. The conditions of validity of the model are discussed, particularly with regard to the optical depth of the plasma for each resonance line, and conclusions are drawn from an appropriate criterion.Keywords
This publication has 19 references indexed in Scilit:
- X-ray structural study of the mesophases of some cone-shaped moleculesJournal de Physique, 1986
- Spectra of Multiply-Charged Lithium-Like Ions in a High-Temperature PlasmaPhysica Scripta, 1984
- Implicit coupling of ionisation dynamics and electron energy balance in laser target simulationsJournal of Physics D: Applied Physics, 1983
- Calculation of Recombination and Ionization Coefficients in ArgonContributions to Plasma Physics, 1982
- Analysis of n=3 to n=4 spectra for ions from Mg X to Fe XXIV and P XI, XIIJournal of Physics B: Atomic and Molecular Physics, 1981
- Line emission from hot, dense, aluminum plasmasPhysical Review A, 1980
- Accurate Semi-Empirical Formulae for the Energy Structure of Li I-like SpectraPhysica Scripta, 1979
- Lithium-Like Spectra in Mg, Al, and SiJournal of the Optical Society of America, 1970
- Recombination between electrons and atomic ions, II. Optically thick plasmasProceedings of the Royal Society of London. A. Mathematical and Physical Sciences, 1962
- Recombination between electrons and atomic ions, I. Optically thin plasmasProceedings of the Royal Society of London. A. Mathematical and Physical Sciences, 1962