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

Goyal, Savi and Mandal, S and Jhingan, Akhil and Sugathan, P and Pal, Santanu and Behera, B.R and Golda, K.S and Singh, Hardev and Kalkal, Sunil and Singh, Varinderjit and Garg, Ritika and Siwal, Davinder and Kaur, Maninder and Saxena, Mansi and Kumar1, Suresh and Verma, S and Gupta, M and Roy, Subinit and Singh, R (2015) Effect of shell structure on neutron multiplicity of fissioning systems 220,222,224Th nuclei. EPJ Web of Conferences. ISSN 2100-014X

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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

Item Type: Article
Subjects: Departments at MU > Manipal Centre for Natural Sciences
Depositing User: MCNS Editor
Date Deposited: 17 Jun 2015 05:05
Last Modified: 17 Jun 2015 05:05
URI: http://eprints.manipal.edu/id/eprint/143038

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