Heavy-ion-induced fission of $$^{181}$$ 181 Ta and $$^{209}$$
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Heavy-ion-induced fission of 181 Ta and 209 Bi at intermediate energies by CRISP model Motahareh Abbasi1,a , Hamed Panjeh2 , Ramon Perez1, Airton Deppman1, Evandro Andrade-II3 , Fermin Velasco3 , Fernando Guzman4 1 2 3 4
Instituto de Física, Universidade de São Paulo, P. O. Box 66318, 05315-970 São Paulo, SP, Brazil Institute of Mathematics and Statistics, University of Sao Paulo, São Paulo, Brazil Departamento de Ciências Exatas e Tecnológicas, Universidade Estadual de Santa Cruz, Ilhéus, BA, Brazil Instituto Superior de Tecnologias y Ciencias Aplicadas (InSTEC), Universidad de la Habana, Havana, Cuba
Received: 11 March 2020 / Accepted: 3 October 2020 © Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract In this work, we study the mechanism of the nuclear reaction of 11 B ion with 181 Ta and 209 Bi targets at intermediate energies and analyze the nuclear reaction processes starting from the initial nucleus–nucleus collision up to the fragments production. The experimental data are derived from the literature Karapetyan et al. (Phys Rev C 94: 024618, 2016). A new branch of CRISP model has been extended in the framework of the rotating liquid drop model to describe heavy-ion-induced reactions. Experimental mass-yield distribution is compared with the results of the Monte Carlo simulation code CRISP using the theoretical model calculations. The experimental data of spallation products are also described by the CRISP model. The fission cross sections, fissility and fragment mass distributions are calculated and compared with experimental data. We conclude that CRISP model provides a good description for the cases analyzed in this study and gives us confidence that it might be applied to other cases as well.
1 Introduction Although nuclear fission was discovered about eighty years ago (in 1938), it has continued to pose challenges in the last eight decades [2–4]. One of these challenges is heavy-ion-induced fission reactions at intermediate energies which gives us a deep insight into the angular momentum transferred in nucleus–nucleus collisions and the lowering of fission barriers with increasing angular momentum. While many investigations have been done on actinide nuclei with different projectiles in a wide range of energy, the study of heavy-ion-induced fission on pre-actinide targets is limited. In the present work, a systematic analysis of heavy-ion-induced reaction and its fission fragment production is modeled with a developed branch of Monte Carlo CRISP (acronym for Collaboration Rio-Ilhéus-São Paulo) [5] code with multimodal fission model to describe 11 B-induced fission on 181 Ta target at 245.4 and 125.7 MeV energies and on 209 Bi target at 146 MeV. The experimental mass distributions of fission fragments and evaporation residues (spallation products) of the reactions under study are obtained from the literature [1]. Heavy-
a e-mail: [email protected] (corresponding author)
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Eur. Phys. J. Plus
(2020) 135:8
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