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L‐subshell fluorescence yields measured with synchrotron radiation
Author(s) -
Sáanchez Héctor J.,
Rubio Marcelo,
Pérez Roberto D.,
Burattini Emilio
Publication year - 1994
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.1300230607
Subject(s) - photoionization , synchrotron radiation , synchrotron , photon , fluorescence , ionization , atomic physics , foil method , photon energy , yield (engineering) , spectral line , chemistry , physics , materials science , optics , ion , organic chemistry , astronomy , composite material , thermodynamics
The synchrotron photoionization method was applied to measure L‐subshell fluorescence yields. This method is based on the capability of tuning the energy of the synchrotron photons producing a selective subshell ionization. Three foil samples of Tb, Ho and Yb were irradiated and their characteristic spectra were recorded. Although it was not possible to obtain absolute results for the three ω L 1, ω L 2and ω L 3fluorescence yields, the poorly known ω L 1and ω L 2coefficients were calculated using theoretical values for the well known ω L 3yield. The results are very reliable and agree with reported theoretical and experimental data. These coefficients are valuable information for spectroscopists considering the lack of data for L 1 ‐ and L 2 ‐subshell parameters. Finally, synchrotron radiation has proved to be a useful tool for fundamental parameter determinations.