Charge distribution studies in the fast-neutron-induced fission of , , andH. Naik, R.J. Singh and R.H. Iyer
Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400 085, India email@example.com
(Received: 26 July 2002 / Revised version: 13 November 2002 / Published online: 3 April 2003)
Charge distribution studies for heavy-mass fission products were carried out in the fast-neutron-induced fission of , , and using radiochemical and gamma-ray spectrometric techniques. The width parameter( ), the most probable charge/mass ( ), the charge polarization ( ) and the slope of charge polarization [ ] as a function of the fragment mass ( ) were deduced. The average charge dispersion parameter ( ) and proton odd-even effect ( ) were also obtained for these fissioning systems. The and values in the fissioning systems and were determined for the first time. The value is also determined for the first time in the fissioning systems , and . These data along with the literature data for even- Z fissioning systems such as , , , , , , , , , , and (SF) are discussed in terms of nuclear structure effect and dynamics of descent from the saddle to the scission point. The role of the excitation energy in low-energy fission is also discussed.
25.85.Ec - Neutron-induced fission.
© Società Italiana di Fisica, Springer-Verlag 2003