The elastic scattering of protons by carbon, aluminium, nickel, copper, zinc, niobium, silver and gold

Abstract

Absolute differential cross-sections have been measured at 10° intervals for the elastic scattering of protons of energy 9∙37 ± 0∙07 MeV from eight elements: C, Al, Ni, Cu, Zn, Nb, Ag and Au. In addition, measurements have been made for Al at 9∙06, 8∙86, 8∙61 and 8∙11 MeV. The scattering chamber permitted observations to be made in the angular range 15 to 165° (laboratory co-ordinates) and the scattered protons were detected using a CsI(Tl) crystal and photomultiplier arrangement with an energy resolution of 3%. The estimated error of each differential cross-section given is ± 3%. The angular distributions show characteristic maxima and minima and vary smoothly with target mass number and energy.