Effect of shell structure on neutron multiplicity of fissioning systems 220,222,224Th nuclei

Savi Goyal, S. Mandal, Akhil Jhingan, P. Sugathan, Santanu Pal, B. R. Behera, K. S. Golda, Hardev Singh, Sunil Kalkal, Varinderjit Singh, Ritika Garg, Davinder Siwal, Maninder Kaur, Mansi Saxena, Suresh Kumar, S. Verma, M. Gupta, Subinit Roy, R. Singh

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Abstract

The pre-and post-scission neutron multiplicities have been extracted for the 220,222,224Th nuclei for the excitation energy range of 40 MeV to 64 MeV using the National Array of Neutron Detectors (NAND). The Th isotopes are populated from the fusion reaction of 16O+204,206,208Pb systems in order to investigate the dynamics of fusion-fission reactions using the neutron multiplicity as a probe. The theoretical calculations were performed using the Bohr-Wheeler fission width as well as the dissipative dynamical fission width from Kramers prescription. It is observed that the Bohr-Wheeler fission width underestimates the pre-scission yields to a large extent. A large amount of dissipation is required in the Kramers width to fit the observed pre-scission neutron multiplicities.

Original languageEnglish
Article number00013
JournalEPJ Web of Conferences
Volume86
DOIs
Publication statusPublished - 29-01-2015

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Goyal, S., Mandal, S., Jhingan, A., Sugathan, P., Pal, S., Behera, B. R., ... Singh, R. (2015). Effect of shell structure on neutron multiplicity of fissioning systems 220,222,224Th nuclei. EPJ Web of Conferences, 86, [00013]. https://doi.org/10.1051/epjconf/20158600013