EPJ Web Conf.
Volume 256, 2021Scientific Workshop on “Nuclear Fission Dynamics and the Emission of Prompt Neutrons and Gamma Rays” (Theory-5)
|Number of page(s)||9|
|Published online||15 December 2021|
Investigation of fission product isomeric ratios and angular momenta of 132Sn populated in the 241Pu(nth,f) reaction
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
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(nth,f) for 132Sn.
© The Authors, published by EDP Sciences, 2021
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