Method to evaluate the L/D Ratio of Neutron Imaging Beams

An alternative simple method to evaluate the L/D ratio of neutron imaging beams is proposed. It is based on the behavior of the ratio “x/Ut”, which asymptotically tends to L/D for large values of the parameter “x”, that corresponds to the distance separating, a gadolinium test object to the scintill...

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Main Authors: Reynaldo Pugliesi, Marco A. Stanojev Pereira, Roberto Mauro Schoueri
Format: Article
Language:English
Published: Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR) 2017-04-01
Series:Brazilian Journal of Radiation Sciences
Subjects:
Online Access:https://bjrs.org.br/revista/index.php/REVISTA/article/view/257
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author Reynaldo Pugliesi
Marco A. Stanojev Pereira
Roberto Mauro Schoueri
author_facet Reynaldo Pugliesi
Marco A. Stanojev Pereira
Roberto Mauro Schoueri
author_sort Reynaldo Pugliesi
collection DOAJ
description An alternative simple method to evaluate the L/D ratio of neutron imaging beams is proposed. It is based on the behavior of the ratio “x/Ut”, which asymptotically tends to L/D for large values of the parameter “x”, that corresponds to the distance separating, a gadolinium test object to the scintillator plane, where its image is formed. The method was applied to the neutron imaging equipment of the Nuclear and Energy Research Institute IPEN-CNEN/SP and the obtained result was L/D = (104 ± 4). The consistency of the proposed method was verified by comparing this value, with those ones obtained by a well - known and established procedure.
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spelling doaj.art-249943a6dd684936866c891d250e7b422022-12-22T03:34:50ZengBrazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)Brazilian Journal of Radiation Sciences2319-06122017-04-015110.15392/bjrs.v5i1.257Method to evaluate the L/D Ratio of Neutron Imaging BeamsReynaldo Pugliesi0Marco A. Stanojev Pereira1Roberto Mauro Schoueri2Instituto de Pesquisas Energéticas e Nucleares IPEN-CNEN/SP. Av. Prof. Lineu Prestes 2242, Butantã, Cidade Universitária, CEP 05508 000, São Paulo – SP, BrasilInstituto de Pesquisas Energéticas e Nucleares IPEN-CNEN/SP. Av. Prof. Lineu Prestes 2242, Butantã, Cidade Universitária, CEP 05508 000, São Paulo – SP, BrasilInstituto de Pesquisas Energéticas e Nucleares IPEN-CNEN/SP. Av. Prof. Lineu Prestes 2242, Butantã, Cidade Universitária, CEP 05508 000, São Paulo – SP, BrasilAn alternative simple method to evaluate the L/D ratio of neutron imaging beams is proposed. It is based on the behavior of the ratio “x/Ut”, which asymptotically tends to L/D for large values of the parameter “x”, that corresponds to the distance separating, a gadolinium test object to the scintillator plane, where its image is formed. The method was applied to the neutron imaging equipment of the Nuclear and Energy Research Institute IPEN-CNEN/SP and the obtained result was L/D = (104 ± 4). The consistency of the proposed method was verified by comparing this value, with those ones obtained by a well - known and established procedure.https://bjrs.org.br/revista/index.php/REVISTA/article/view/257neutron imagingneutron tomographyL/D ratio
spellingShingle Reynaldo Pugliesi
Marco A. Stanojev Pereira
Roberto Mauro Schoueri
Method to evaluate the L/D Ratio of Neutron Imaging Beams
Brazilian Journal of Radiation Sciences
neutron imaging
neutron tomography
L/D ratio
title Method to evaluate the L/D Ratio of Neutron Imaging Beams
title_full Method to evaluate the L/D Ratio of Neutron Imaging Beams
title_fullStr Method to evaluate the L/D Ratio of Neutron Imaging Beams
title_full_unstemmed Method to evaluate the L/D Ratio of Neutron Imaging Beams
title_short Method to evaluate the L/D Ratio of Neutron Imaging Beams
title_sort method to evaluate the l d ratio of neutron imaging beams
topic neutron imaging
neutron tomography
L/D ratio
url https://bjrs.org.br/revista/index.php/REVISTA/article/view/257
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AT marcoastanojevpereira methodtoevaluatetheldratioofneutronimagingbeams
AT robertomauroschoueri methodtoevaluatetheldratioofneutronimagingbeams