Experimental and theoretical study of BF3 detector response for thermal neutrons in reflecting materials

Experimental measurements of the response of BF3 detector to a 3 Ci Am–Be neutron source for three different reflecting materials, i.e., aluminum, wood, and Perspex of varying thicknesses have been carried out. The varying contribution of wall effect to the response due to change in active volume of...

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Main Authors: Rubina Nasir, Faiza Aziz, Sikander M. Mirza, Nasir M. Mirza
Format: Article
Language:English
Published: Elsevier 2018-04-01
Series:Nuclear Engineering and Technology
Online Access:http://www.sciencedirect.com/science/article/pii/S1738573317304680
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author Rubina Nasir
Faiza Aziz
Sikander M. Mirza
Nasir M. Mirza
author_facet Rubina Nasir
Faiza Aziz
Sikander M. Mirza
Nasir M. Mirza
author_sort Rubina Nasir
collection DOAJ
description Experimental measurements of the response of BF3 detector to a 3 Ci Am–Be neutron source for three different reflecting materials, i.e., aluminum, wood, and Perspex of varying thicknesses have been carried out. The varying contribution of wall effect to the response due to change in active volume of the detector has also been determined experimentally. Then, a Monte Carlo code has been developed for the calculation of the neutron response function of the BF3 detector using source biasing and importance sampling. This code simulates the BF3 detector response exposed to the neutron field in a three-dimensional source, detector, and reflecting medium configurations. The results of simulation have been compared with the corresponding experimental measurements and are found to be in good agreement. The experimental neutron albedo measurements for various values of Perspex thickness show saturating behavior, and results agree very well with the data obtained by Monte Carlo simulation. Keywords: Albedo, BF3 Detectors, Monte Carlo Simulation, Response
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spelling doaj.art-d2dccba205b94693bbd60d775d2efb882022-12-22T02:56:28ZengElsevierNuclear Engineering and Technology1738-57332018-04-01503439445Experimental and theoretical study of BF3 detector response for thermal neutrons in reflecting materialsRubina Nasir0Faiza Aziz1Sikander M. Mirza2Nasir M. Mirza3Department of Physics, Air University, PAF Complex, E-9, Islamabad, 44000, PakistanDepartment of Nuclear Engineering, Pakistan Institute of Engineering & Applied Sciences, Nilore, Islamabad 45650, PakistanDepartment of Physics & Applied Mathematics, Pakistan Institute of Engineering & Applied Sciences, Nilore, Islamabad 45650, PakistanDepartment of Physics & Applied Mathematics, Pakistan Institute of Engineering & Applied Sciences, Nilore, Islamabad 45650, Pakistan; Corresponding author.Experimental measurements of the response of BF3 detector to a 3 Ci Am–Be neutron source for three different reflecting materials, i.e., aluminum, wood, and Perspex of varying thicknesses have been carried out. The varying contribution of wall effect to the response due to change in active volume of the detector has also been determined experimentally. Then, a Monte Carlo code has been developed for the calculation of the neutron response function of the BF3 detector using source biasing and importance sampling. This code simulates the BF3 detector response exposed to the neutron field in a three-dimensional source, detector, and reflecting medium configurations. The results of simulation have been compared with the corresponding experimental measurements and are found to be in good agreement. The experimental neutron albedo measurements for various values of Perspex thickness show saturating behavior, and results agree very well with the data obtained by Monte Carlo simulation. Keywords: Albedo, BF3 Detectors, Monte Carlo Simulation, Responsehttp://www.sciencedirect.com/science/article/pii/S1738573317304680
spellingShingle Rubina Nasir
Faiza Aziz
Sikander M. Mirza
Nasir M. Mirza
Experimental and theoretical study of BF3 detector response for thermal neutrons in reflecting materials
Nuclear Engineering and Technology
title Experimental and theoretical study of BF3 detector response for thermal neutrons in reflecting materials
title_full Experimental and theoretical study of BF3 detector response for thermal neutrons in reflecting materials
title_fullStr Experimental and theoretical study of BF3 detector response for thermal neutrons in reflecting materials
title_full_unstemmed Experimental and theoretical study of BF3 detector response for thermal neutrons in reflecting materials
title_short Experimental and theoretical study of BF3 detector response for thermal neutrons in reflecting materials
title_sort experimental and theoretical study of bf3 detector response for thermal neutrons in reflecting materials
url http://www.sciencedirect.com/science/article/pii/S1738573317304680
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AT sikandermmirza experimentalandtheoreticalstudyofbf3detectorresponseforthermalneutronsinreflectingmaterials
AT nasirmmirza experimentalandtheoreticalstudyofbf3detectorresponseforthermalneutronsinreflectingmaterials