Study of 14.2 MeV/N 238U + natU heavy ion reaction using muscovite mica track detector

Abstract

The heavy ion reaction of 14.2 MeV / N 238U + natU has been studied using muscovite detector and 2π—geometry detection technique. The reaction cross section and the partial cross sections of 3,4 and 5 massive fragments (each not less than 30u) exit channels have been obtained. The masses and energies of the fragments have been calculated according to the spherical coordinates of the tracks formed by the multifragments using the quantitative analysing methodology developed by P.A.Gottschalk et al. and the standard velocity—range data. Then the kinematical analysis on each selected event has been performed and it shows that the main reaction channel of 14.2 Mev / N U+U is the sequential fission of projectile-like or/and target-like nuclei resulting from inelastic or deep inelastic collision. Some features of the sequential fission have been drawn.