Fission fragment angular distribution measurements of U-235 and U-238 at CERN n_TOF facility

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To access the full text documents, please follow this link: http://hdl.handle.net/2117/96596

dc.contributor	Universitat Politècnica de Catalunya. Departament de Física
dc.contributor	Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group
dc.contributor.author	Leal-Cidoncha, E.
dc.contributor.author	Durán, I.
dc.contributor.author	Paradela, C.
dc.contributor.author	Calviño Tavares, Francisco
dc.contributor.author	Cortés Rossell, Guillem Pere
dc.date	2015
dc.identifier.citation	Leal-Cidoncha, E., Durán, I., Paradela, C., Calviño, F., Cortes, G. Fission fragment angular distribution measurements of U-235 and U-238 at CERN n_TOF facility. A: International Workshop on Nuclear Data Evaluation for Reactor Applications. "EPJ Web of Conferences". Aix-en-Provence: EDP Sciences, 2015, p. 10002-1-10002-6.
dc.identifier.citation	10.1051/epjconf/201611110002
dc.identifier.uri	http://hdl.handle.net/2117/96596
dc.language.iso	eng
dc.publisher	EDP Sciences
dc.relation	http://www.epj-conferences.org/articles/epjconf/abs/2016/06/epjconf_wonder2016_10002/epjconf_wonder2016_10002.html
dc.relation	info:eu-repo/grantAgreement/ES/1PE/FPA2014-52823-C2-2-P
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject	Àrees temàtiques de la UPC::Energies::Energia nuclear
dc.subject	Neutrons
dc.subject	Nuclear fission
dc.subject	Fission
dc.subject	Fission fragments
dc.subject	nTOF
dc.subject	CERN
dc.subject	Neutron
dc.subject	Cross section
dc.subject	Neutrons
dc.subject	Fissió nuclear
dc.title	Fission fragment angular distribution measurements of U-235 and U-238 at CERN n_TOF facility
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/conferenceObject
dc.description.abstract	Neutron-induced fission cross sections of U-238 and U-235 are used as standards in the fast neutron region up to 200 MeV. A high accuracy of the standards is relevant to experimentally determine other neutron reaction cross sections. Therefore, the detection efficiency should be corrected by using the angular distribution of the fission fragments (FFAD), which are barely known above 20 MeV. In addition, the angular distribution of the fragments produced in the fission of highly excited and deformed nuclei is an important observable to investigate the nuclear fission process. In order to measure the FFAD of neutron-induced reactions, a fission detection setup based on parallel-plate avalanche counters (PPACs) has been developed and successfully used at the CERN-n_TOF facility. In this work, we present the preliminary results on the analysis of new U-235(n,f) and U-238(n,f) data in the extended energy range up to 200 MeV compared to the existing experimental data.

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