Abstract
L X-ray fluorescence cross sections for elements with 64⩽ Z⩽70 at 15.2 keV have been measured using an X-ray tube, a secondary fluorescent target of Y and a germanium detector. Experimental results obtained were grouped considering the transitions scheme and the energy values between level and sublevel, and the detector's resolution. The present experimental setup showed very good performance in discriminating the fluorescence emission lines and in reducing the signal-to-background ratio. The results obtained were compared with theoretical values calculated using two different data tables. Better agreement was found between our experimental values and the theoretical data calculated using Puri's data tables.
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