Compton Scattering of 145 keV Gamma Rays byK-Shell Electrons of Silver

Abstract

Differential cross-sections for the incoherent scattering of 145 keV photons from K-shell electrons of silver are measured at scattering angles ranging from 30" to 150" to investigate the effect of electron binding on the scattering process in the low energy region. Measurements are made employing two Nal (TI) scintillation spectrometers and a slow-fast coincidence circuit of resolving time 30 ns. The experimental results are compared with the available theoretical data. The total K-shell scattering cross-section is also estimated and is about 45% of the free electron crosssection.