Sánchez-Caballero, A Cano-Ott, D Mendoza, E Alcayne, V Andrzejewski, J Capote, R Cardinaels, T Dries, P Pérez, J García Gawlik-Ramięga, A González-Romero, E Heyse, J Leinders, G Martínez, T Noguere, G Paradela, C De Rada Fiol, A Pérez Perkowski, J Plompen, A Schillebeeckx, P Sibbens, G Van Hecke, K Vanleeuw, D Verguts, K Verwerft, M Villamarin, D Wynants, R Aberle, O Altieri, S Amaducci, S Babiano-Suarez, V Bacak, M Balibrea-Correa, J Beltrami, C Bennett, S Bernardes, A P Berthoumieux, E Beyer, R Boromiza, M Bosnar, D Caamaño, M Calviño, F Calviani, M Casanovas, A Castelluccio, D M Cerutti, F Cescutti, G Chasapoglou, S Chiaveri, E Colombetti, P Colonna, N Camprini, P Console Cortés, G Cortés-Giraldo, M A Cosentino, L Cristallo, S Dellmann, S F Diakaki, M Di Castro, M Dietz, M Di Maria, S Domingo-Pardo, C Dressler, R Dupont, E Durán, I Eleme, Z Fargier, S Fernández, B Fernández-Domínguez, B Finocchiaro, P Fiore, S Furman, V García-Infantes, F Gervino, G Gilardoni, S Guerrero, C Gunsing, F Gustavino, C Hillman, W Jenkins, D G Jericha, E Junghans, A Kadi, Y Kaperoni, K Kaur, G Kimura, A Knapová, I Kokkoris, M Kopatch, Y Krtička, M Kyritsis, N Ladarescu, I Lederer-Woods, C Lerendegui-Marco, J Lerner, G Manna, A Masi, A Massimi, C Mastinu, P Mastromarco, M Maugeri, E A Mazzone, A Mengoni, A Michalopoulou, V Milazzo, P M Mucciola, R Murtas, F González, E Musacchio Musumarra, A Negret, A Patronis, N Pavón, J A Pellegriti, M G Pérez-Maroto, P Petrone, C Pirovano, E Del Olmo, J Plaza Pomp, S Porras, I Praena, J Quesada, J M Reifarth, R Rochman, D Romanets, Y Rubbia, C Sabaté-Gilarte, M Schumann, D Sekhar, A Smith, A G Sosnin, N V Stamati, M E Sturniolo, A Tagliente, G Tarifeño-Saldivia, A Tarrío, D Torres-Sánchez, P Urlass, S Vagena, E Valenta, S Variale, V Vaz, P Vecchio, G Vescovi, D Vlachoudis, V Vlastou, R Wallner, A Woods, P J Wright, T Zarrella, R Žugec, P Low-uncertainty measurement of the 239Pu(n,f) cross section at n_TOF in a very broad energy range from 0.02 eV up to 10 MeV Phys. Lett. B 140070 872 The 239Pu(n,f) cross section was measured with uncertainties below 4 % from 20 meV up to 10 MeV of neutron energy at CERN’s n_TOF facility using a novel fission fragment detector with a 185.59 m flight path. Measured cross section was normalized to 1059(6) eV · b in the 9–20 eV energy range, and is consistent within uncertainties with the standard thermal value and the IAEA reference 239Pu(n,f) cross section. Experimental key values include the integral ratio I3/I1=41.20(42) defined by Duran et al. 2024 and the spectrum averaged cross section in 252Cf(sf) reference neutron field of 1802(40) mb. eng Nuclear reaction; Neutron-induced reaction; n_TOF; Fission; Cross section measurement; Plutonium-239; 2025

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