Experimental study on ratios of coherent scattering to Compton scattering for elements with atomic numbers 26⩽Z⩽82 in 59.5 keV for 55° and 115°

Differential cross-sections for coherent and Compton scattering of 59.5 keV γ-rays at the scattering 55° and 115° by Fe, Ni, Cu, Zn, Zr, Nb, Mo, Ag, Sn, Ta, Au and Pb were measured using a Ge(Li) detector. To measure theoretical coherent and Compton scattering differential cross-sections are extracted by interpolating atomic form factors and incoherent scattering functions corresponding to 2.216 and 4.048 Å−1 photon momentum transfer. The experimental cross-section ratios are compared with predictions of nonrelativistic and relativistic form factors theories.