Beam-foil Studies of Energy Levels and Radiative Lifetimes in Be I and Be II
- 1 July 1972
- journal article
- Published by IOP Publishing in Physica Scripta
- Vol. 6 (1) , 55-60
- https://doi.org/10.1088/0031-8949/6/1/006
Abstract
An investigation of the doubly-excited quartet levels in Be II and the displaced term system of Be I is described. Beam-foil spectra of beryllium (500-1 600 Å, 2 000-6 000 Å) showed several transitions which were assigned to doubly-excited Be II. A term scheme for these quartet levels is proposed. A number of the observed lines were also identified with the Be I 2pnl1L, 3L system. Radiative lifetimes have been determined for several excited levels in Be I and Be II.Keywords
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