Abstract

The 236U isotope plays an important role in nuclear systems, both for future and currently operating ones. The actual knowledge of the capture reaction of this isotope is satisfactory in the thermal region, but it is considered insufficient for Fast Reactor and ADS applications. For this reason the 236U(n, γ) reaction cross-section has been measured for the first time in the whole energy region from thermal energy up to 1 MeV at the n_TOF facility with two different detection systems: an array of C6D6 detectors, employing the total energy deposited method, and a FX1 total absorption calorimeter (TAC), made of 40 BaF2 crystals. The two n_TOF data sets agree with each other within the statistical uncertainty in the Resolved Resonance Region up to 800 eV, while sizable differences (up to ≃ 20%) are found relative to the current evaluated data libraries. Moreover two new resonances have been found in the n_TOF data. In the Unresolved Resonance Region up to 200 keV, the n_TOF results show a reasonable agreement with previous measurements and evaluated data.

Details

Title
The 236U neutron capture cross-section measured at the n_TOF CERN facility
Author
Mastromarco, M; Barbagallo, M; Vermeulen, MJ; Colonna, N; Altstadt, S; Andrzejewski, J; Audouin, L; Bécares, V; Bečvář, F; Belloni, F; Berthoumieux, E; Billowes, J; Bosnar, D; Brugger, M; Calviño, F; Calviani, M; Cano-Ott, D; Carrapiço, C; Cerutti, F; Chiaveri, E; Chin, M; Cortés, G; Cortés-Giraldo, MA; Diakaki, M; Domingo-Pardo, C; Durán, I; Dzysiuk, N; Eleftheriadis, C; Ferrari, A; Fraval, K; Furman, V; Gómez-Hornillos, M B; Ganesan, S; García, A R; Giubrone, G; Gonçalves, I F; González, E; Goverdovski, A; Griesmayer, E; Guerrero, C; Gunsing, F; Gurusamy, P; Heftrich, T; Heinitz, S; Hernández-Prieto, A; Heyse, J; Jenkins, D G; Jericha, E; Käppeler, F; Kadi, Y; Karadimos, D; Katabuchi, T; Ketlerov, V; Khryachkov, V; Koehler, P; Kokkoris, M; Kroll, J; Krtička, M; Lampoudis, C; Langer, C; Leal-Cidoncha, E; Lederer, C; Leeb, H; Leong, L S; Lerendegui-Marco, J; Licata, M; Losito, R; Manousos, A; Marganiec, J; Martínez, T; Massimi, C; Mastinu, P; Mendoza, E; Mengoni, A; Milazzo, P M; Mingrone, F; Mirea, M; Mondelaers, W; Paradela, C; Pavlik, A; Perkowski, J; Plompen, AJM; Praena, J; Quesada, J M; Rauscher, T; Reifarth, R; Riego-Perez, A; Robles, M; Roman, F; Rubbia, C; Ryan, JA; Sabaté-Gilarte, M; Sarmento, R; Saxena, A; Schillebeeckx, P; Schmidt, S; Schumann, D; Sedyshev, P; Tagliente, G; Tain, JL; Tarifeño-Saldivia, A; Tarrío, D; Tassan-Got, L; Tsinganis, A; Valenta, S; Vannini, G; Variale, V; Vaz, P; Ventura, A; Versaci, R; Vlachoudis, V; Vlastou, R; Wallner, A; Ware, T; Weigand, M; Weiss, C; Wright, T; Žugec, P
Section
Nuclear Reaction Measurements
Publication year
2017
Publication date
2017
Publisher
EDP Sciences
ISSN
21016275
e-ISSN
2100014X
Source type
Conference Paper
Language of publication
English
DOI
https://doi.org/10.1051/epjconf/201714611054
ProQuest document ID
2037111829
Copyright
© 2017. This work is licensed under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and conditions, you may use this content in accordance with the terms of the License.