Isotopic yield in alpha accompanied ternary fission of 252Cf

Abstract

The cold ternary fission of 252 Cf with 4 He as light charged particle (LCP) is studied with fragments in the equatorial and collinear configuration, taking the interacting barrier as the sum of the Coulomb and Proximity potential. The favorable fragment combinations are obtained from the cold valley plot and by calculating the yield for charge-minimized fragments. In both equatorial and collinear configurations, the highest yield is obtained for the fragment combination 116 Pd + 4 He + 132 Sn , which possess doubly magic nuclei 132 Sn (N = 82, Z = 50). The presence of doubly or near doubly magic nuclei (132 Sn , 130 Sn etc.) and higher Q value plays an important role in the alpha accompanied cold ternary fission of 252 Cf . The comparison of the relative yield for equatorial configuration with that of collinear configuration, points to the fact that equatorial configuration is the preferred configuration for the LCP (4 He ) accompanied ternary fission in 252 Cf isotope. The yields obtained for the alpha accompanied cold ternary fission of 252 Cf in equatorial and collinear configuration are compared with the experimental data. The emission probability of long range alpha (LRA) particle from 252 Cf isotope is predicted using our formalism and is found to be in agreement with experimental value.