Measurement of total M shell photoionization cross sections for Au, Pb, Th and U in the energy region 6–12 keV
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 email@example.com
Published online: 13 December 2006
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.
PACS: 32.80.-t – Photon interactions with atoms / 32.80.Fb – Photoionization of atoms and ions / 32.30.Rj – X-ray spectra
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2006