Investigation of fission product isomeric ratios and angular momenta of 132Sn populated in the 241Pu(nth,f) reaction

Jehaan Nicholson; Abdelhazize Chebboubi; Olivier Serot; Grégoire Kessedjian; Yung Hee Kim; Ulli Köster; Olivier Litaize; Olivier Méplan; Christophe Sage; Mourad Ramdhane

doi:10.1051/epjconf/202125600011

All issues

Volume 256 (2021)

EPJ Web Conf., 256 (2021) 00011

Abstract

Open Access

Issue		EPJ Web Conf. Volume 256, 2021 Scientific Workshop on “Nuclear Fission Dynamics and the Emission of Prompt Neutrons and Gamma Rays” (Theory-5)


Article Number		00011
Number of page(s)		9
DOI		https://doi.org/10.1051/epjconf/202125600011
Published online		15 December 2021

EPJ Web of Conferences 256, 00011 (2021)
https://doi.org/10.1051/epjconf/202125600011

Investigation of fission product isomeric ratios and angular momenta of ¹³²Sn populated in the ²⁴¹Pu(n_th,f) reaction

Jehaan Nicholson¹, Abdelhazize Chebboubi¹^*, Olivier Serot¹, Grégoire Kessedjian², Yung Hee Kim³, Ulli Köster³, Olivier Litaize¹, Olivier Méplan², Christophe Sage² and Mourad Ramdhane²

¹ CEA, DEN, DER, SPRC, Cadarache, Physics Studies Laboratory, 13108 Saint-Paul-lès-Durance, France
² LPSC, Université Grenoble-Alpes, CNRS/IN2P3, 38026 Grenoble Cedex, France
³ Institut Laue-Langevin, 38042 Grenoble Cedex 9, France

^* e-mail: Abdelhazize.CHEBBOUBI@cea.fr

Published online: 15 December 2021

Abstract

During an experimental campaign performed at the LOHENGRIN recoil spectrometer of the Institut Laue-Langevin (ILL), a kinetic energy dependence of ¹³²Sn fission product isomeric ratio (IR) has been measured by inducing thermal fission of ²⁴¹Pu. The IRs are deduced using gamma ray spectrometry in coincidence with the ionisation chamber. To interpret these data, we use the FIFRELIN Monte-Carlo code to simulate the de-excitation of the fission fragments. Combining the IRs with the FIFRELIN calculations, the angular momentum distribution with kinetic energy of the doubly magic nucleus of ¹³²Sn was deduced. This will be compared with the angular momentum distribution obtained for the reaction ²³⁵U(n_th,f) for ¹³²Sn.

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