Measurement of L x-ray fluorescence cross-sections in heavy elements excited by 17.78, 25.88, 26.88 and 32.89 keV photons

Abstract

L 1, L α, L β and L γ x-ray cross-sections have been measured for the elements Au and Pb at excitation energies 17.78, 25.78, 26.88 and 32.89 keV. Measurements have been performed using an x-ray tube with a secondary exciter system as the excitation source. The x-ray tube with a secondary target arrangement was used to obtain high intensity with high degree of monochromatization. By using an x-ray tube it is possible to measure L x-ray fluorescence cross-sections even for low intensity x-rays (L 1). Experimental results have been compared with theoretical values. A fairly good correspondence is observed between experimental and calculated values.