2026-04-17T20:37:25Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/1332742025-07-17T03:13:29Zcom_2072_1033col_2072_452950

Measurement of the neutron capture cross section of the fissile isotope 235U with the CERN n_TOF Total Absorption Calorimeter and a fission tagging based on micromegas detectors Mendoza, E. Cano-Ott, D Balibrea-Correa, J. Calviño Tavares, Francisco Cortés Rossell, Guillem Pere Riego Pérez, Albert Àrees temàtiques de la UPC::Energies::Energia nuclear Àrees temàtiques de la UPC::Física Neutrons Neutrons--Capture Nuclear reaction Reutrons CERN n_TOF Cross section Neutrons Neutrons--Captura Actual and future nuclear technologies require more accurate nuclear data on the (n, gamma) cross sections and -ratios of fissile isotopes. Their measurement presents several difficulties, mainly related to the strong fission gamma-ray background competing with the weaker gamma-ray cascades used as the experimental signature of the (n,gamma) process. A specific setup has been used at the CERN n_TOF facility in 2012 for the measurement of the (n,gamma) cross section and alpha-ratios of fissile isotopes and used for the case of the 235U isotope. The setup consists in a set of micromegas fission detectors surrounding 235U samples and placed inside the segmented BaF2 Total Absorption Calorimeter. Postprint (published version) 2014 Conference report info:eu-repo/grantAgreement/MICINN//FPA2008-04972-C03-03/ES/DATOS NUCLEARES PARA FISICA NUCLEAR E INGENIERIA NUCLEAR/ http://creativecommons.org/licenses/by-nc-nd/3.0/es/ Open Access Attribution-NonCommercial-NoDerivs 3.0 Spain