Please use this identifier to cite or link to this item: http://ricaxcan.uaz.edu.mx/jspui/handle/20.500.11845/739
Title: Calculation of Response matrix of a BSS with 6LiI scintillator
Authors: 6207
Issue Date: Feb-2008
Publisher: Sociedad Mexicana de Física, A.C.
Abstract: Se calcul´o la matriz de respuesta de un espectr´ometro de Esferas de Bonner utilizando los c´odigos Monte Carlo MCNP 4C y MCNPX 2.4.0. El detector de neutrones t´ermicos del espectr´ometro es un centellador cil´ındrico, 0.4 cm ×∅ 0.4 cm, de 6LiI, que se ubica en el centro de esferas de polietileno. La respuesta se obtuvo para esferas cuyo di´ametro es 0, 2, 3, 5, 8, 10 y 12 pulgadas y para fuentes monoenerg´eticas de neutrones de 2.50E(-8) to 100 MeV. La matriz se calcul´o para 23 fuentes monoenerg´eticas, las funciones de respuesta se interpolaron a 51 energ´ıas que se compararon con las correspondientes reportadas en la literatura. Se encontr´o que ambas matrices son coincidentes, excepto para neutrones de baja y alta energ´ıa; esta diferencia es atribuida a las condiciones de irradiaci´on utilizadas en ambos estudios y a las secciones eficaces.
Description: The response matrix of a Bonner sphere spectrometer was calculated using MCNP 4C and MCNPX 2.4.0 codes. As thermal neutron detector a 0.4 cm ×∅ 0.4 cm 6LiI which is located at the center of a set of polyethylene spheres. The response was calculated for 0, 2, 3, 5, 8, 10, and 12 inches-diameter polyethylene spheres for neutrons whose energy goes from 2.50E(-8) to 100 MeV. The response matrix was calculated for 23 neutron energies, the response functions were energy-interpolated to 51 neutron energies and were compared with a matrix response reported in the literature, in this comparison both response matrices are in agreement. The main differences were found in the bare detector and are attributed to the irradiation conditions and cross sections, for the other detectors the differences are due to the cross sections libraries.
URI: http://localhost/xmlui/handle/20.500.11845/739
ISSN: 0035-001X
Other Identifiers: info:eu-repo/semantics/publishedVersion
Appears in Collections:*Documentos Académicos*-- UA Ciencias Nucleares

Files in This Item:
File Description SizeFormat 
Calculation of response matrix.pdf324,82 kBAdobe PDFThumbnail
View/Open


This item is licensed under a Creative Commons License Creative Commons