Fission excitation function for ¹⁹F + ^194,196,198Pt at near and above barrier energies

¹ Department of Physics, Panjab University, Chandigarh 160014, India
² Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi 110067, India
³ CS-6/1, Golf Green, Kolkata 700095, India
⁴ Department of Physics and Astrophysics, University of Delhi, Delhi 110007, India
⁵ Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India

^a Corresponding author: Mangat_phy@yahoo.co.in

Published online: 29 January 2015

Abstract

Fission excitation functions for ¹⁹F + ^194,196,198Pt reactions populating ^213,215,217Fr compound nuclei are reported. Out of these three compound nuclei, ²¹³Fr is a shell closed (N=126) compound nucleus and the other two are away from the shell closure. From a comparison of the experimental fission cross-sections with the statistical model predictions, it is observed that the fission cross-sections are underestimated by the statistical model predictions using shell corrected finite range rotating liquid drop model (FRLDM) fission barriers. Further the FRLDM fission barriers are reduced to fit the fission cross-sections over the entire measured energy range.