Measurement of K-shell jump ratios and jump factors for some elements in 76 <= Z <= 92 using EDXRF spectrometer

作者：Kaya N^*; Apaydin G; Tirasoglu E

来源：Radiation Physics and Chemistry, 2011, 80(6): 677-681.

DOI：10.1016/j.radphyschem.2011.02.001

• Jump ratio
• Jump factor
• EDXRF
• X-ray fluorescence

This article presents experimental values of the K-shell jump factor and jump ratio (ratio of the K-shell photoionization cross section to the photoionization cross section of the rest of the atom at the K edge) for some elements in 76 <= Z <= 92 using an energy dispersive X-ray fluorescence (EDXRF) spectrometer and compares those values with the theoretical ones giving reasonable agreement. The experimental values have been determined using the fluorescence parameters: K-alpha production cross sections, K-beta/K-alpha X-rays intensity ratios, total atomic attenuation cross sections, etc. To the best of our knowledge, K-shell jump ratios and jump factors have been measured without having any data on K edge for the first time in these elements. The results have been plotted versus atomic number.

• 出版日期2011-6