Determination of some fluorescence parameters of L sub–shells for Th and U at 59.54 keV photon energy

Abstract

The L X–ray fluorescence cross–sections at 59.54 keV, L sub–shell fluorescence and Auger yields, L sub–shell level widths, life times and some selected radiative transfer probabilities of L to M, N and O sub–shells were determined using Energy Dispersive X–ray Fluorescence for Th and U. The experiments were performed with a Si(Li) detector and an Am–241 radioactive annular source in excitation geometry. The results are in good agreement with other comparable values within experimental uncertainties.