Abstract

Experimental determinations of L X-ray fluorescence cross-sections for elements with 72≤Z≤75 at 12, 13 and 14 keV were carried out with synchrotron radiation. The experimental set-up provided a linearly polarized monoenergetic photon beam producing a very low background, which improved the signal-to-noise ratio and reduced the experimental uncertainties. Results of the experimental cross-sections obtained for the L lines were grouped considering the transitions scheme, the energies of the emission lines and the detector's resolution. The data obtained were compared with theoretical ones using two different data tables. A very good agreement was found between our experimental values and the theoretical values calculated using Puri's data (X-Ray Spectrom. 22 (1993) 358–361).

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