Photon Emission from Core-Excited Be I and Be II States
- 1 July 1983
- journal article
- Published by IOP Publishing in Physica Scripta
- Vol. 28 (1) , 45-50
- https://doi.org/10.1088/0031-8949/28/1/006
Abstract
Optical-emission spectra of core-excited Be I 5L and core-excited Be II 2L and 4L states have been studied by means of the beam-foil-excitation method. Multiconfigurational Hartree-Fock calculations have been performed for the optical transitions between the lower-lying Be I 5L states and between 1s2pnl (n = 2-4, l = 0-3) 2P0, 2Pe, 2D0, 2De, and 2Fe states in core-excited Be II 2L to facilitate the identifications. Some previously assigned core-excited Be II 4L transitions are shown to belong to either the core-excited Be I 5L or the core-excited Be II 2L spectrum. Additional identifications of core-excited Be II 2L transitions explain the main features of this spectrum. The identifications of Be II 1s2p4l 4L states are discussed.Keywords
This publication has 23 references indexed in Scilit:
- Experimental investigation of doubly excited states in Be IIPhysical Review A, 1982
- Energy levels and lifetimes for some quartet states of Be IIPhysical Review A, 1982
- Core-excited quartet levels of Be IIPhysics Letters A, 1982
- New identifications of doubly excited quartet states in Be IIJournal of Physics B: Atomic and Molecular Physics, 1982
- Comments on the quartet spectrum of Be IIJournal of Physics B: Atomic and Molecular Physics, 1982
- Doubly excited quartet states in Be IIJournal of Physics B: Atomic and Molecular Physics, 1981
- On the quartet system of Be IIJournal of Physics B: Atomic and Molecular Physics, 1981
- Theoretical studies of core-excited states of two- and three-electron atomsPhysical Review A, 1981
- Doubly Excited States in Be IIIPhysica Scripta, 1980
- Mean-Life Measurements of Excited Electronic States in Neutral and Ionic Species of Beryllium and BoronPhysical Review B, 1969