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L-shell radiative transition rates by selective synchrotron ionization

R D Bonetto1, A C Carreras2, J Trincavelli2,3 and G Castellano2

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Relative L-shell radiative transition rates were obtained for a number of decays in Gd, Dy, Er, Yb, Hf, Ta and Re by means of a method for refining atomic and experimental parameters involved in the spectral analysis of x-ray irradiated samples. For this purpose, pure samples were bombarded with monochromatic synchrotron radiation tuning the incident x-ray energy in order to allow selective ionization of the different atomic shells. The results presented are compared to experimental and theoretical values published by other authors. A good general agreement was found and some particular discrepancies are discussed.


PACS

34.50.Fa Electronic excitation and ionization of atoms (including beam-foil excitation and ionization)

32.70.Cs Oscillator strengths, lifetimes, transition moments

Subjects

Atomic and molecular physics

Dates

Issue 7 (14 April 2004)

Received 20 November 2003

Published 17 March 2004



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