Generalized oscillator strengths in the electron impact spectra of rubidium and caesium
- 1 April 1969
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 2 (4) , 484-489
- https://doi.org/10.1088/0022-3700/2/4/308
Abstract
Studies of generalized oscillator strengths as a function of incident electron kinetic energy within the range 335-1005 eV have been made for rubidium and caesium using a crossed-beam high-resolution electron energy-loss spectrometer. Absolute generalized oscillator strengths have been derived by normalizing the resonance transition to the optical oscillator strength. For rubidium the reduced matrix elements (5 2Sparallelr2parallel6 2S) and (5 2Sparallelr2parallel7 2S) were found to be 44 A.U. ±25% and 15 A.U. ±40%, respectively, and the transition probabilities A(4 2D -> 5 2S) and A(5 2D -> 5 2S) found to be 204 s-1 ±10% and less than 24 s-1, respectively. For caesium the reduced matrix element (6 2Sparallelr2parallel7 2S) was found to be 57 A.U. ±20%, and the transition probabilities A(5 2D -> 6 2S), A(6 2D -> 6 2S) and A(7 2D -> 6 2S) were found to be 49 s-1 ±10%, 94 s-1 ±20% and 80 s-1 ±40%, respectively.Keywords
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