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

Manna, A.; Pirovano, E.; Console Camprini, P.; Cosentino, L.; Dietz, M.; Ducasse, Q.; Finocchiaro, P.; Le Naour, C.; Mancusi, D.; Massimi, C.; Mengoni, A.; Nolte, R.; Radeck, D.; Tassan-Got, L.; Terranova, N.; Vannini, G.; Ventura, A.; Aberle, O.; Alcayne, V.; Amaducci, S.; Andrzejewski, J.; Audouin, L.; Babiano-Suarez, V.; Bacak, M.; Barbagallo, M.; Bennett, S.; Berthoumieux, E.; Billowes, J.; Bosnar, D.; Brown, A.; Busso, M.; Caamaño, M.; Caballero-Ontanaya, L.; Calviño, F.; Calviani, M.; Cano-Ott, D.; Casanovas, A.; Castelluccio, D. M.; Cerutti, F.; Chiaveri, E.; Colonna, N.; Cortés, G.; Cortés-Giraldo, M. A.; Cristallo, S.; Damone, L. A.; Davies, P. J.; Diakaki, M.; Domingo-Pardo, C.; Dressler, R.; Dupont, E.; Durán, I.; Eleme, Z.; Fernández-Domínguez, B.; Ferrari, A.; Furman, V.; Göbel, K.; Garg, R.; Gawlik-Ramięga, A.; Gilardoni, S.; Gonçalves, I. F.; González-Romero, E.; Guerrero, C.; Gunsing, F.; Harada, H.; Heinitz, S.; Heyse, J.; Jenkins, D. G.; Junghans, A.; Käppeler, F.; Kadi, Y.; Kimura, A.; Knapová, I.; Kokkoris, M.; Kopatch, Y.; Krtička, M.; Kurtulgil, D.; Ladarescu, I.; Lederer-Woods, C.; Leeb, H.; Lerendegui-Marco, J.; Lonsdale, S. J.; Macina, D.; Martínez, T.; Masi, A.; Mastinu, P.; Mastromarco, M.; Maugeri, E. A.; Mazzone, A.; Mendoza, E.; Michalopoulou, V.; Milazzo, P. M.; Mingrone, F.; Moreno-Soto, J.; Musumarra, A.; Negret, A.; Ogállar, F.; Oprea, A.; Patronis, N.; Pavlik, A.; Perkowski, J.; Petrone, C.; Piersanti, L.; Porras, I.; Praena, J.; Quesada, J. M.; Ramos-Doval, D.; Rauscher, T.; Reifarth, R.; Rochman, D.; Rubbia, C.; Sabaté-Gilarte, M.; Saxena, A.; Schillebeeckx, P.; Schumann, D.; Sekhar, A.; Smith, A. G.; Sosnin, N. V.; Sprung, P.; Stamatopoulos, A.; Tagliente, G.; Tain, J. L.; Tarifeño-Saldivia, A.; Thomas, Th; Torres-Sánchez, P.; Tsinganis, A.; Ulrich, J.; Urlass, S.; Valenta, S.; Variale, V.; Vaz, P.; Vescovi, D.; Vlachoudis, V.; Vlastou, R.; Wallner, A.; Woods, P. J.; Wright, T.; Žugec, P.

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

Date

2025

Authors

Manna, A.

Pirovano, E.

Console Camprini, P.

Cosentino, L.

Dietz, M.

Ducasse, Q.

Finocchiaro, P.

Le Naour, C.

Mancusi, D.

Massimi, C.

Abstract

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.

Keywords

Cross section measurement, Fission process, High energy, Neutron-induced reaction, Nuclear reaction, n_TOF, Uranium-235

URI

http://www.scopus.com/inward/record.url?scp=85213841097&partnerID=8YFLogxK
https://hdl.handle.net/1885/733752435

Collections

ANU Research Publications

Source

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

Type

Journal article

Entity type

Publication

DOI

10.1016/j.physletb.2024.139213

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1-s2.0-S0370269324007718-main.pdf (1.28 MB)

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

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