Eur. Phys. J. D 41, 455-456 (2007)
https://doi.org/10.1140/epjd/e2006-00268-x

Measurement of total M shell photoionization cross sections for Au, Pb, Th and U in the energy region 6–12 keV

¹ Physics Department, Sant Longowal Institute of Engineering & Technology, Longowal, 148 106 Punjab, India
² Nuclear Science Laboratories, Physics Department, Punjabi University, Patiala, 147 002 Punjab, India

Corresponding author: ^a ksmann_2000@yahoo.com

Received: 10 September 2006
Published online: 13 December 2006

Abstract

The total M shell relative photoionization cross-sections for Au, Pb, Th and U have been measured in the energy region 6–12 keV. External conversion K X-rays of suitable elements has been employed as incident photons to photo ionize the total M shell of elements under investigation. The method provides relative cross-sections therefore does not make use of theoretically calculated average M shell fluorescence yields which involve uncertainties of the order of 20%. No evidence of deviation from calculated values of cross-sections have been observed within experimental errors for all incident photon energies.