Título:
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Monte Carlo simulations for the study of a moderated neutron detector
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Autor/a:
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Gómez Hornillos, María Belén; Gorlychev, V.; Caballero Folch, Roger; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme; Calviño Tavares, Francisco
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Otros autores:
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Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear; Universitat Politècnica de Catalunya. Departament de Física; Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions; Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group |
Abstract:
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This work presents the Monte Carlo simulations performed with the MCNPX and GEANT4 codes for the design of a BEta deLayEd Neutron detector, BELEN-20. This detector will be used for the study of beta delayed neutron emission and consists of a block of polyethylene with dimensions 90x90x80 cm3 and 20 cylindrical 3He gas counters. The results of these simulations have been validated experimentally with a 252Cf source in the laboratory at UPC, Barcelona. Also the first experiment with this detector has been carried out in November 2009 in JYFL, Finland. In this experiment the neutron emission probability after beta decay of the fission products 88Br, 94;95Rb, and 138I has been measured; this data is still under analysis. Simulations with MCNPX and GEANT4 have been performed in order to obtain the efficiency of the BELEN-20 detector for each of the above nuclei using the neutron energy distribution corresponding to each nucleus. |
Abstract:
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Peer Reviewed |
Materia(s):
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-Àrees temàtiques de la UPC::Física::Física de partícules::Leptons -Monte Carlo method -Neutrons--Measurement -Monte Carlo simulations -GEANT4 -MCNPX -Beta delayed neutron emission -Neutron detector -Montecarlo, Mètode de -Neutrons -- Mesurament |
Derechos:
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Tipo de documento:
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Artículo - Versión publicada Artículo |
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