Calculation of vacancy transfer probabilities from K to L shell using the X-ray fluorescence parameters

The probabilities for vacancy transfer from the K to the L shell (ηKL), have been calculated for eleven high atomic number elements using the measured K and L shells X-ray production cross-sections. The targets were excited by 123.6 keV photon from a 57Co annular radioactive source. K and L X-rays emitted by samples were counted with a Si(Li) detector. The measured values of ηKL were compared with the theoretical values and our early papers. - Highlights: ► The K to L shell vacancy transfer probabilities were investigated. ► K and L shell X-ray fluorescence parameters were used in the calculations. ► Samples were irradiated by 123.6 keV energy.