New spectroscopic results in the 2s2p5-2s2p43s transition array of Mg4+, Al5+and Si6+ions
- 28 May 1979
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 12 (10) , 1657-1664
- https://doi.org/10.1088/0022-3700/12/10/012
Abstract
Experimental and theoretical results on far UV transitions between levels of configurations 2s2p43s and 2s2p5 in Mg V, Al VI and Si VII spectra are reported. Theoretical analysis by means of ab initio and semi-empirical methods leads to a new identification of a number of lines, nine of which pertain to the Si VII spectrum. These are situated in the 70-90 AA range, and have not been observed previously. The energy levels of the upper configurations of Al5+ and Su6+ ions are calculated in the intermediate coupling scheme. The correlation effects expressed by configuration interactions do not greatly influence the relative energy position of the analysed lines but they do have significant consequences on their relative intensities.Keywords
This publication has 13 references indexed in Scilit:
- Pressure dependence of the de Haas-van Alphen effect in potassiumJournal of Physics F: Metal Physics, 1978
- Analysis of the 2p43s, 2p43p and 2p43d Configurations of Five-times Ionized Silicon (Si VI)Physica Scripta, 1977
- Transition probabilities and radiative lifetimes for singly ionized xenonJournal of Physics B: Atomic and Molecular Physics, 1976
- LS-term dependence of Slater integrals in pnp' configurations. II. Deviations from the single-configuration approximation in the np5n'p configurationsJournal of Physics B: Atomic and Molecular Physics, 1973
- New observations of the spectra of argon X to XV and of isoelectronic emission lines in silicon VII to X, phosphorus X, sulphur IX to XII and chlorine X to XIVJournal of Physics B: Atomic and Molecular Physics, 1971
- Extreme-Ultraviolet Spectra of Sc xiv, Ti xv, and V xviJournal of the Optical Society of America, 1971
- Determination theorique des probabilites de transition 2p53p → 2p53s dans le spectre du neon IPhysica, 1970
- A multi-configuration Hartree-Fock programComputer Physics Communications, 1970
- Some Characteristics of the Extreme Ultraviolet Spectrum Emitted by the Plasma Produced by Laser Impact on an Aluminium TargetJournal of Applied Physics, 1969
- Wavelength measurements in the vacuum ultra-violetReports on Progress in Physics, 1963