Neutron spectrometry using artificial neural networks for a bonner sphere spectrometer with 3He detector

Ortiz Rodríguez, José Manuel and Martínez Blanco, María del Rosario and Vega-Carrillo, Héctor René and Gallego Díaz, Eduardo F. and Lorente Fillol, Alfredo and Méndez Villafañe, Roberto and Los Arcos Merino, José María and Guerrero Araque, Jorge Enrique (2011). Neutron spectrometry using artificial neural networks for a bonner sphere spectrometer with 3He detector. "Revista Mexicana de Fisica S", v. 57 (n. 1); pp. 69-71. ISSN 0035-001X.

Description

Title: Neutron spectrometry using artificial neural networks for a bonner sphere spectrometer with 3He detector
Author/s:
  • Ortiz Rodríguez, José Manuel
  • Martínez Blanco, María del Rosario
  • Vega-Carrillo, Héctor René
  • Gallego Díaz, Eduardo F.
  • Lorente Fillol, Alfredo
  • Méndez Villafañe, Roberto
  • Los Arcos Merino, José María
  • Guerrero Araque, Jorge Enrique
Item Type: Article
Título de Revista/Publicación: Revista Mexicana de Fisica S
Date: 2011
ISSN: 0035-001X
Volume: 57
Subjects:
Freetext Keywords: Neutron spectrometry; neutron dosimetry; neural networks
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Nuclear [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Neutron spectra unfolding and dose equivalent calculation are complicated tasks in radiation protection, are highly dependent of the neutron energy, and a precise knowledge on neutron spectrometry is essential for all dosimetry-related studies as well as many nuclear physics experiments. In previous works have been reported neutron spectrometry and dosimetry results, by using the ANN technology as alternative solution, starting from the count rates of a Bonner spheres system with a LiI(Eu) thermal neutrons detector, 7 polyethylene spheres and the UTA4 response matrix with 31 energy bins. In this work, an ANN was designed and optimized by using the RDANN methodology for the Bonner spheres system used at CIEMAT Spain, which is composed of a He neutron detector, 12 moderator spheres and a response matrix for 72 energy bins. For the ANN design process a neutrons spectra catalogue compiled by the IAEA was used. From this compilation, the neutrons spectra were converted from lethargy to energy spectra. Then, the resulting energy ?uence spectra were re-binned by using the MCNP code to the corresponding energy bins of the He response matrix before mentioned. With the response matrix and the re-binned spectra the counts rate of the Bonner spheres system were calculated and the resulting re-binned neutrons spectra and calculated counts rate were used as the ANN training data set.

More information

Item ID: 15252
DC Identifier: http://oa.upm.es/15252/
OAI Identifier: oai:oa.upm.es:15252
Official URL: http://rmf.smf.mx/page/rmf-s_anteriores?volume=57&issue=1
Deposited by: Memoria Investigacion
Deposited on: 30 Nov 2013 13:35
Last Modified: 21 Apr 2016 15:17
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