Relativistic impulse approximation-based compton component of mass energy absorption coefficients (cm/g) for few materials of medical interest.

Total, whole-atom, individual and integrated Compton scattering cross sections and Compton energy absorption scattering cross sections are evaluated for light elements, such as, H, C, N, O, P, and Ca, with relativistic impulse approximation methods. Most of the phantom materials composed of these elements, which are the basic constituents of biological soft-tissue and attenuation through them, provides potential source of information. Compton scattering cross-sections for few biological materials, such as, HO, CH, CH, CHO, CHNO, CHO, CHO, [Ca(PO)]Ca (OH) of medical interest, have been evaluated with the use of double differential scattering cross-section based on impulse approximation.