Track detector study of the interaction of intermediate energy-18O ions with some light and heavy targets

Correlated reaction products formed in the interaction of 86 MeV/u-18O with Thorium, Bismuth, Hafnium, and Niobium targets were analysed with a view to estimating the contribution of 'light' and 'heavy' reaction products and to studying their multiplicity distributions. Angular distributions of the differential cross-sections of the reaction products for four targets (using a CR-39-detector) and for the hafnium target (employing five different SSNTDs) were obtained. The results presented show that more than 60% of the light reaction products are emitted in a cone in an angular interval of O0-200 around the beam axis, indicating the presence of peripheral collisions. The central collisions show an almost isotropic angular distribution of the heavy reaction products. (author)