New insights on fission of 235U induced by high energy neutrons from a new measurement at n_TOF

The 235U(n, f) reaction cross section was measured relative to neutron-proton elastic scattering for the first time in the energy region from 10 MeV to 440 MeV at the CERN n_TOF facility, extending the upper limit of the only previous measurement in the literature by more than 200 MeV. For neutron e...

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Detalles Bibliográficos
Autores: Manna, Alice, Pirovano, Elisa, Console Camprini, Patrizio, Cosentino, Luigi, Dietz, Mirco, Ducasse, Quentin, Finocchiaro, Paolo, Le Naour, Claire, Mancusi, Davide, Massimi, Cristian, Mengoni, Alberto, Calviño Tavares, Francisco|||0000-0002-7198-4639, Casanovas Hoste, Adrià|||0000-0002-7138-0894, Cortés Rossell, Guillem Pere|||0000-0002-3648-5826, Tarifeño Saldivia, Ariel Esteban|||0000-0001-8552-5030
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/424150
Acceso en línea:https://hdl.handle.net/2117/424150
https://dx.doi.org/10.1016/j.physletb.2024.139213
Access Level:acceso abierto
Palabra clave:Nuclear reaction
Neutron-induced reaction
n_TOF
High energy
Fission process
Cross section measurement
Uranium-235
Àrees temàtiques de la UPC::Física
Descripción
Sumario:The 235U(n, f) reaction cross section was measured relative to neutron-proton elastic scattering for the first time in the energy region from 10 MeV to 440 MeV at the CERN n_TOF facility, extending the upper limit of the only previous measurement in the literature by more than 200 MeV. For neutron energies below 200 MeV, our results agree within one standard deviation with data in literature. Above 200 MeV, the comparison of model calculations to our data indicates the need to introduce a transient time in neutron-induced fission to allow the simultaneous description of (n, f) and (p, f) reactions.

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