Measurement of L X-ray fluorescence cross sections and relative intensities for Ho, Er and Yb in the energy range 11-41 keV

Abstract

L X-ray fluorescence cross sections ( sigma L( alpha ), sigma L( beta ) and sigma L( gamma )) and relative intensities (IL( beta )/IL( alpha ), IL( gamma )/IL( alpha )) for Ho, Er and Yb have been measured at six excitation energies in the energy range 11-41 keV. A comparison between the experimental results for the L X-ray fluorescence cross sections and the theoretically calculated values shows that the experimental results are, in general, higher than the theoretical values. However, the measured results of intensity ratios are in good agreement with the theoretical values. To the best of the authors' knowledge, photon-induced L X-ray fluorescence cross sections for these elements at different energies are being reported for the first time.