Neutron-induced fission cross section of U-234 measured at the CERN n_TOF facility

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dc.contributor	Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear
dc.contributor	Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions
dc.contributor.author	Calviño Tavares, Francisco
dc.contributor.author	Cortés Rossell, Guillem Pere
dc.contributor.author	Pretel Sánchez, Carme
dc.date	2014-04-15
dc.identifier.citation	Calviño, F.; Cortes, G.; Pretel, M. Neutron-induced fission cross section of U-234 measured at the CERN n_TOF facility. "Physical review C", 15 Abril 2014, vol. 89, núm. 4, p. 044606-1-044606-11.
dc.identifier.citation	0556-2813
dc.identifier.citation	10.1103/PhysRevC.89.044606
dc.identifier.uri	http://hdl.handle.net/2117/25546
dc.language.iso	eng
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 Spain
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	Neutron
dc.subject	Fission
dc.subject	Cross section
dc.subject	TOF
dc.subject	Neutrons
dc.title	Neutron-induced fission cross section of U-234 measured at the CERN n_TOF facility
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	The neutron-induced fission cross section of 234U has been measured at the CERN n_TOF facility relative to the standard fission cross section of 235U from 20 keV to 1.4 MeV and of 238U from 1.4 to 200 MeV. A fast ionization chamber (FIC) was used as a fission fragment detector with a detection efficiency of no less than 97%. The high instantaneous flux and the low background characterizing the n_TOF facility resulted in wide-energy-range data (0.02 to 200 MeV), with high energy resolution, high statistics, and systematic uncertainties bellow 3%. Previous investigations around the energy of the fission threshold revealed structures attributed to ß-vibrational levels, which have been confirmed by the present measurements. Theoretical calculations have been performed, employing the TALYS code with model parameters tuned to fairly reproduce the experimental data

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