Abstract
Elastic scattering differential cross-sections for the 22.1 keV photons (Ag–Kα X-rays) have been measured for fifteen elements with 6⩽ Z⩽81 at an angle of 133°. The measurements were performed using the 109 Cd radioisotope as photon source and a Si(Li) detector. The measurements include the Ag element, where the elastic scattered photon yield was deduced from the observed 22.1 keV peak after subtracting the contribution of the fluorescent Kα X-rays produced by the 88.03 keV γ-ray and internal bremsstrahlung photons from the 109 Cd radioisotope. The measured elastic scattering cross-sections have been compared with those evaluated using the form-factor and the second-order S-matrix formalisms.
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