Metastable autoionizing three- and four-electron states in beryllium
- 1 August 1975
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 8 (11), L253-L258
- https://doi.org/10.1088/0022-3700/8/11/012
Abstract
A group of metastable autoionizing levels in beryllium has been observed after Be+ ion bombardment of 7 mu g cm-2 thin carbon foils at 300 keV incident ion energy. Two peaks appearing at 102.7 and 106.7 eV are interpreted to be related to the Auger decay of the Be I(1s2s2p2) 5Pe term. Lifetimes of the (1s2p 2) 4Pe state in Be II and the (1s2s2p2) 5Pe state in Be I have been determined. Different decay mechanisms are discussed.Keywords
This publication has 11 references indexed in Scilit:
- Comparison of doubly-excited helium energy levels, isoelectronic series, autoionization lifetimes, and group-theoretical configuration-mixing predictions with large-configuration-interaction calculations and experimental spectraPhysical Review A, 1975
- Atomic physics with ion accelerators — Beam-foil spectroscopyPhysics Reports, 1974
- X-ray emission from foil-exited sulphur beamsPhysical Review A, 1974
- Recent Progress in Studies of Atomic Spectra and Transition Probabilities by Beam-foil SpectroscopyPhysica Scripta, 1974
- Auger Spectra of Highly Ionized Oxygen and FluorinePhysical Review A, 1973
- Theory of “Non-Stationary” states in many-electron atomsNuclear Instruments and Methods, 1973
- Beam-foil studies of energy levels and radiative lifetimes in Be I and Be IINuclear Instruments and Methods, 1973
- Energies and Lifetimes of the Metastable Autoionizing(1s2s2p)PJ4States ofLi6andLi7; Assignment of Li-IbQuartet LinesPhysical Review Letters, 1968
- Variational Calculations for Quartet States of Three-Electron Atomic SystemsPhysical Review B, 1967
- Classification of Two-Electron Excitation Levels of HeliumPhysical Review Letters, 1963