Analysis of core-excitedn= 3 configurations in S VI, Cl VII, Ar VIII and Ti XII
- 1 July 1990
- journal article
- Published by IOP Publishing in Physica Scripta
- Vol. 42 (1) , 44-50
- https://doi.org/10.1088/0031-8949/42/1/007
Abstract
By means of the beam-foil method, 74 new lines have been identified as combinations between the core-excited 2p5 3s3p, 3s3d and 3p2 configurations in Na-like sulphur, chlorine, argon and titanium. Relative energies have been determined for most of the quartet levels in S, Cl and Ar with an internal uncertainty of less than 25 cm−1. We also report the first observation in the isoelectronic sequence of Δn = 0, n = 3 transitions from the quasi-metastable 2p5 3p2(3P) 2D5/2 level. The identifications are supported by isoelectronic studies and comparisons with theoretical results obtained in superposition-of-configuration calculations including continuum channels.Keywords
This publication has 22 references indexed in Scilit:
- High-resolution autoionizing line spectra of Mg ii and Al iii in the 160–260-Å range emitted from a Penning ionization discharge plasmaJournal of the Optical Society of America B, 1988
- Experimental study of core-excited quartet transitions in Mg IIPhysica Scripta, 1988
- Doubly-excited levels in Al IIINuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1988
- Lifetimes and energy levels for some core-excited quartet states in Na iPhysical Review A, 1988
- Energy levels and lifetimes for some core-excited quartet states in Na i and Mg iiPhysical Review A, 1986
- Lifetime measurements of core-excited quartet levels in Na iPhysical Review A, 1985
- Laser spectroscopy of Na i quartetsPhysical Review A, 1985
- L-series satellite spectra in Ti xii and Fe xviJournal of the Optical Society of America, 1979
- Ne i-like resonance lines and Na i-like satellites in argon and chlorinePhysical Review A, 1978
- Beam-foil observations of Na I doubly-excited statesPhysics Letters A, 1974