Measurement of the 235U fission cross section relative to the standard 10B(n, 𝛼) reaction at the CERN n_TOF facility: Results for E𝑛 < 2 eV

Michalopoulou, V.; Diakaki, M.; Kyritsis, N.; Kokkoris, M.; Vlastou, R.; Mavromatakou-Karamitsiou, M.; Eleme, Z.; Patronis, N.; Aberle, O.; Alcayne, V.; Amaducci, S.; Andrzejewski, J.; Babiano, V.; Bacak, M.; Balibrea-Correa, J.; Bernardes, A. P.; Berthoumieux, E.; Beyer, R.; Boromiza, M.; Bosnar, D.; Caamaño, M.; Calviño, F.; Calviani, M.; Cano-Ott, D.; Casanovas, A.; Castelluccio, D. M.; Cerutti, F.; Cescutti, G.; Chasapoglou, S.; Chiaveri, E.; Claps, G.; Colombetti, P.; Colonna, N.; Camprini, P. Console; Cortés, G.; Cortés-Giraldo, M. A.; Cosentino, L.; Cristallo, S.; Dellmann, S. F.; Di Castro, M.; Dietz, M.; Domingo-Pardo, C.; Dressler, R.; Dupont, E.; Durán, I.; Eslami, M.; Fargier, S.; Fernández-Domínguez, B.; Finocchiaro, P.; Furman, V.; Gandhi, A.; García-Infantes, F.; Gawlik-Ramięga, A.; Gervino, G.; Gilardoni, S.; González-Romero, E.; Goula, S.; Griesmayer, E.; Guerrero, C.; Gunsing, F.; Gustavino, C.; Heyse, J.; Hillman, W.; Jenkins, D. G.; Jericha, E.; Junghans, A.; Kadi, Y.; Kaperoni, K.; Koll, D.; Kopatch, Y.; Krtička, M.; Ladarescu, I.; Lederer-Woods, C.; Lerendegui-Marco, J.; Lerner, G.; Manna, A.; Martínez, T.; Masi, A.; Massimi, C.; Mastinu, P.; Mastromarco, M.; Maugeri, E. A.; Mazzone, A.; Mendoza, E.; Mengoni, A.; Milazzo, P. M.; Mucciola, R.; González, E. Musacchio; Musumarra, A.; Negret, A.; Pavón, J. A.; Pellegriti, M. G.; Pérez-Maroto, P.; De Rada Fiol, A. Pérez; Perkowski, J.; Petrone, C.; Piersanti, L.; Pirovano, E.; Olmo, J. Plaza Del; Pomp, S.; Porras, I.; Praena, J.; Quesada, J. M.; Reifarth, R.; Rochman, D.; Romanets, Y.; Rooney, A.; Rubbia, C.; Sánchez-Caballero, A.; Sabaté-Gilarte, M.; Scarpa, D.; Schillebeeckx, P.; Schumann, D.; Smith, A. G.; Sosnin, N. V.; Spelta, M.; Stamati, M. E.; Tagliente, G.; Tamburrino, A.; Tarifeño-Saldivia, A.; Tarrío, D.; Torres-Sánchez, P.; Tosi, S.; Tsiledakis, G.; Valenta, S.; Vaz, P.; Vecchio, G.; Vescovi, D.; Vlachoudis, V.; Wallner, A.; Weiss, C.; Woods, P. J.; Wright, T.; Žugec, P.

doi:10.1016/j.apradiso.2025.112063

The neutron induced fission of 235U is a very important reaction for nuclear technology applications and for the design of future systems to produce clean and safe energy. In addition, it is used as a reference reaction for neutron cross-section measurements, thus, its cross section is needed with a high accuracy over a wide energy range. In this work, the measurement for the 235U(n,f) reaction was carried out at the n_TOF facility located at CERN, at experimental area EAR-2. The standard 10B(n, α) reaction was used as reference, while a setup based on the gaseous Micromegas detectors was implemented for the detection of the fission fragments and α and 7Li-particles of the two reactions, respectively. In order to determine the thickness of the 10B sample NRA measurements were carried out at the National Center for Scientific Research “Demokritos”.

Michalopoulou, V., Diakaki, M., Kyritsis, N., Kokkoris, M., Vlastou, R., Mavromatakou-Karamitsiou, M., et al. (2025). Measurement of the 235U fission cross section relative to the standard 10B(n, 𝛼) reaction at the CERN n_TOF facility: Results for E𝑛 < 2 eV. APPLIED RADIATION AND ISOTOPES, 226, 1-7 [10.1016/j.apradiso.2025.112063].