Measurement of M subshell X-ray fluorescence parameters of gold, lead and bismuth using 7 keV synchrotron radiation

Abstract

The M_α and M_β X-ray fluorescence cross sections, I_Mα/I_Mβ intensity ratio, M₅ subshell fluorescence yield and M₅ subshell Auger yield for gold, lead and bismuth elements were determined using Indus-2 synchrotron radiation available at the Raja Ramanna Center for Advanced Technology, India. A 7 keV synchrotron radiation was used to generate the characteristic M X-ray photons in gold, lead and bismuth and consequent X-ray photons were detected with Amptek silicon drift detector which has energy resolution of 129 eV at 5.9 keV. By measuring the area under M_α and M_β X-ray peaks, M_α and M_β X-ray fluorescence cross sections, I_Mα/I_Mβ intensity ratio, M₅ subshell fluorescence yield and M₅ subshell Auger yield were determined for gold, lead and bismuth. Experimentally determined values were compared with the theoretical and other experimental values available in the literature.

Keywords:

• Fluorescence yield
• high Z
• intensity ratio
• M shell
• synchrotron radiation

Acknowledgments

The authors would like to thank Mr. Ajit Singh for his help during the experiment at Indus-2 synchrotron centre, Raja Ramanna Centre for Advanced Technology, Indore.

Additional information

Funding

The authors would like to acknowledge DST-Purse-Phase-II (sanctioned to Karnatak University, Dharwad), CAS-II (UGC, New Delhi), UPE-FAR-I (sanctioned to Karnatak University, Dharwad) for financial support.