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Measurement of the 235U(n,f) cross section relative to the 6Li(n,t) and 10B(n,a) standards from thermal to 170 keV neutron energy range at n_TOF
dc.contributor.author | Amaducci, Simone |
dc.contributor.author | Cosentino, Luigi |
dc.contributor.author | Barbagallo, Massimo |
dc.contributor.author | Calviño Tavares, Francisco |
dc.contributor.author | Casanovas Hoste, Adrià |
dc.contributor.author | Tarifeño Saldivia, Ariel Esteban |
dc.contributor.author | Cortés Rossell, Guillem Pere |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Física |
dc.contributor.other | Universitat Politècnica de Catalunya. Doctorat en Enginyeria Nuclear i de les Radiacions Ionitzants |
dc.date.accessioned | 2019-07-19T07:38:45Z |
dc.date.available | 2019-07-19T07:38:45Z |
dc.date.issued | 2019-02-27 |
dc.identifier.citation | Amaducci, S. [et al.]. "Measurement of the 235U(n,f) cross section relative to the 6Li(n,t) and 10B(n,a) standards from thermal to 170 keV neutron energy range at n_TOF". 2019. |
dc.identifier.uri | http://hdl.handle.net/2117/166443 |
dc.description.abstract | The 235U(n,f) cross section was measured in a wide energy range at n_TOF relative to 6Li(n,t) and 10B(n,alpha), with high resolution and in a wide energy range, with a setup based on a stack of six samples and six silicon detectors placed in the neutron beam. This allowed us to make a direct comparison of the reaction yields under the same experimental conditions, and taking into account the forward/backward emission asymmetry. A hint of an anomaly in the 10÷30 keV neutron energy range had been previously observed in other experiments, indicating a cross section systematically lower by several percent relative to major evaluations. The present results indicate that the evaluated cross section in the 9÷18 keV neutron energy range is indeed overestimated, both in the recent updates of ENDF/B-VIII.0 and of the IAEA reference data. Furthermore, these new high-resolution data confirm the existence of resonance-like structures in the keV neutron energy region. The new, high accuracy results here reported may lead to a reduction of the uncertainty in the 1÷100 keV neutron energy region. Finally, the present data provide additional confidence on the recently re-evaluated cross section integral between 7.8 and 11 eV. |
dc.format.extent | 22 p. |
dc.language.iso | eng |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Energies::Energia nuclear |
dc.subject | Àrees temàtiques de la UPC::Física |
dc.subject.lcsh | Neutrons |
dc.subject.lcsh | Nuclear physics |
dc.subject.other | Neutrons |
dc.subject.other | Cross section |
dc.subject.other | Nuclear reactions |
dc.subject.other | n_TOF |
dc.subject.other | CERN |
dc.title | Measurement of the 235U(n,f) cross section relative to the 6Li(n,t) and 10B(n,a) standards from thermal to 170 keV neutron energy range at n_TOF |
dc.type | External research report |
dc.subject.lemac | Neutrons |
dc.subject.lemac | Física nuclear |
dc.contributor.group | Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group |
dc.relation.publisherversion | https://arxiv.org/ftp/arxiv/papers/1902/1902.10631.pdf |
dc.rights.access | Open Access |
local.identifier.drac | 25152350 |
dc.description.version | Preprint |
dc.relation.projectid | info:eu-repo/grantAgreement/MICINN/2PE/FPA2017-83946-C2-2-P |
local.citation.author | Amaducci, S.; Cosentino, L.; Barbagallo, M.; Calviño, F.; Casanovas, A.; Tarifeño, A.; Cortes, G. |
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