M-shell X-ray production cross sections in Au, Pb, Th and U by 6-12 keV photons

Abstract
The cross sections for the production of M-shell X-rays in thick targets of Au, Pb, Th and U by photons of energy 6-12 keV have been measured. The measured cross sections are compared with those calculated from the theoretical values of the M-subshell photoionisation cross sections, fluorescence yields and Coster-Kronig yields. A fairly good agreement is found between the present results and the calculations within the uncertainties of the determination.