Light charged particle accompanied ternary fission of ~(242)Cm using the Coulomb and proximity potential

摘要

The cold ternary fission of ~(242)Cm with ~4He, ~(10)Be and ~(14)C as light charged particle has been studied by taking the interacting barrier as the sum of Coulomb and proximity potential with the fragments in equatorial configuration. The favorable fragment combinations are obtained from the cold valley plot (plot of driving potential vs. mass number of fragments) and by calculating the yield for charge minimized fragments. The maximum yield in the ~4He accompanied ternary fission is obtained for the fragmentation channel ~(104)Mo + ~(134)Te + ~4He and for the ~(10)Be accompanied ternary fission, the maximum yield is found for the fragmentation channel ~(98)Zr + ~(134)Te + ~(10)Be. It is to be noted that, in the case of ~(14)C accompanied ternary fission, the maximum yield is obtained for the fragmentation channel ~(94)Sr + ~(134)Te + ~(14)C and the next higher yield is found for the fragmentation channel ~(96)Zr + ~(132)Sn + ~(14)C. Thus, the fragment combinations with maximum yields reveal the role of doubly magic and near doubly magic nuclei in cold ternary fission.