Fast-beam, zero-field level-crossing measurements of radiative lifetimes, fine and hyperfine structures in excited states of ionic and neutral beryllium
- 21 June 1975
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 8 (9) , 1393-1405
- https://doi.org/10.1088/0022-3700/8/9/006
Abstract
The possible use of level-crossing spectroscopy to study properties of excited states generated by gas excitation of fast ionic beams has been investigated. With a 20-400 keV Be+ beam excited by means of helium gas, radiative lifetimes of 2D and 2F levels in Be II have been determined together with the fine-structure separation of the 5f 2F level in Be II and the hyperfine coupling constant for the 2s3d 1D level in Be I and the 2p 2p level in Be II.Keywords
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