Fast and epithermal neutron radiography using neutron irradiator
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional do IEN |
Texto Completo: | http://carpedien.ien.gov.br:8080/handle/ien/2403 |
Resumo: | The neutron radiography technique (NR) with neutrons in the energy range fast to epithermal is a powerful tool used in non-destructive inspection of bulky objects of diverse materials, including those rich in hydrogen, oxygen, nitrogen and carbon. Thus, it can be used to identify, inclusions, voids and thickness differences in materials such as explosive artifacts and narcotics. Aiming at using NR with fast and epithermal neutrons, an Irradiator was constructed composed by: a 241Am-Be source, with 5 Ci activity; a collimator with adjustable collimation rate, L/D; and a shielding device composed by plates of borated paraffin and iron. The test specimens chosen were a Beam Purity Indicator (BPI) and an Indicator of Visual Resolution (IVR). The neutron radiography images obtained had a resolution of 444.4 m and 363.6 m respectively when registered in: 1) the sheet of the nuclear track solid detector, CR-39 type, through X(n,p)Y nuclear reaction; and 2) Kodak Industrex M radiographic film plate in close contact with a boron converter screen, both stored in a Kodak radiographic cassette. |
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Crispim, Verginia ReisInstituto de Engenharia Nuclear2018-06-07T17:17:30Z2018-06-07T17:17:30Z2013-06http://carpedien.ien.gov.br:8080/handle/ien/2403Submitted by Marcele Costal de Castro (costalcastro@gmail.com) on 2018-06-07T17:17:30Z No. of bitstreams: 1 FAST AND EPITHERMAL NEUTRON RADIOGRAPHY USING NEUTRON IRRADIATOR.pdf: 1327646 bytes, checksum: 01d78ed9273fe5f6aea9b886be6dbb4b (MD5)Made available in DSpace on 2018-06-07T17:17:30Z (GMT). No. of bitstreams: 1 FAST AND EPITHERMAL NEUTRON RADIOGRAPHY USING NEUTRON IRRADIATOR.pdf: 1327646 bytes, checksum: 01d78ed9273fe5f6aea9b886be6dbb4b (MD5) Previous issue date: 2013-06The neutron radiography technique (NR) with neutrons in the energy range fast to epithermal is a powerful tool used in non-destructive inspection of bulky objects of diverse materials, including those rich in hydrogen, oxygen, nitrogen and carbon. Thus, it can be used to identify, inclusions, voids and thickness differences in materials such as explosive artifacts and narcotics. Aiming at using NR with fast and epithermal neutrons, an Irradiator was constructed composed by: a 241Am-Be source, with 5 Ci activity; a collimator with adjustable collimation rate, L/D; and a shielding device composed by plates of borated paraffin and iron. The test specimens chosen were a Beam Purity Indicator (BPI) and an Indicator of Visual Resolution (IVR). The neutron radiography images obtained had a resolution of 444.4 m and 363.6 m respectively when registered in: 1) the sheet of the nuclear track solid detector, CR-39 type, through X(n,p)Y nuclear reaction; and 2) Kodak Industrex M radiographic film plate in close contact with a boron converter screen, both stored in a Kodak radiographic cassette.engInstituto de Engenharia NuclearIENBrasilINAC 2013Neutron radiography techniqueNeutron irradiatorFast and epithermal neutron radiography using neutron irradiatorinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectVI INACinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional do IENinstname:Instituto de Engenharia Nuclearinstacron:IENLICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://carpedien.ien.gov.br:8080/xmlui/bitstream/ien/2403/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52ORIGINALFAST AND EPITHERMAL NEUTRON RADIOGRAPHY USING NEUTRON IRRADIATOR.pdfFAST AND EPITHERMAL NEUTRON RADIOGRAPHY USING NEUTRON IRRADIATOR.pdfapplication/pdf1327646http://carpedien.ien.gov.br:8080/xmlui/bitstream/ien/2403/1/FAST+AND+EPITHERMAL+NEUTRON+RADIOGRAPHY+USING+NEUTRON+IRRADIATOR.pdf01d78ed9273fe5f6aea9b886be6dbb4bMD51ien/2403oai:carpedien.ien.gov.br:ien/24032018-06-07 14:17:30.303Dspace IENlsales@ien.gov.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 |
dc.title.pt_BR.fl_str_mv |
Fast and epithermal neutron radiography using neutron irradiator |
title |
Fast and epithermal neutron radiography using neutron irradiator |
spellingShingle |
Fast and epithermal neutron radiography using neutron irradiator Crispim, Verginia Reis INAC 2013 Neutron radiography technique Neutron irradiator |
title_short |
Fast and epithermal neutron radiography using neutron irradiator |
title_full |
Fast and epithermal neutron radiography using neutron irradiator |
title_fullStr |
Fast and epithermal neutron radiography using neutron irradiator |
title_full_unstemmed |
Fast and epithermal neutron radiography using neutron irradiator |
title_sort |
Fast and epithermal neutron radiography using neutron irradiator |
author |
Crispim, Verginia Reis |
author_facet |
Crispim, Verginia Reis Instituto de Engenharia Nuclear |
author_role |
author |
author2 |
Instituto de Engenharia Nuclear |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Crispim, Verginia Reis Instituto de Engenharia Nuclear |
dc.subject.por.fl_str_mv |
INAC 2013 Neutron radiography technique Neutron irradiator |
topic |
INAC 2013 Neutron radiography technique Neutron irradiator |
dc.description.abstract.por.fl_txt_mv |
The neutron radiography technique (NR) with neutrons in the energy range fast to epithermal is a powerful tool used in non-destructive inspection of bulky objects of diverse materials, including those rich in hydrogen, oxygen, nitrogen and carbon. Thus, it can be used to identify, inclusions, voids and thickness differences in materials such as explosive artifacts and narcotics. Aiming at using NR with fast and epithermal neutrons, an Irradiator was constructed composed by: a 241Am-Be source, with 5 Ci activity; a collimator with adjustable collimation rate, L/D; and a shielding device composed by plates of borated paraffin and iron. The test specimens chosen were a Beam Purity Indicator (BPI) and an Indicator of Visual Resolution (IVR). The neutron radiography images obtained had a resolution of 444.4 m and 363.6 m respectively when registered in: 1) the sheet of the nuclear track solid detector, CR-39 type, through X(n,p)Y nuclear reaction; and 2) Kodak Industrex M radiographic film plate in close contact with a boron converter screen, both stored in a Kodak radiographic cassette. |
description |
The neutron radiography technique (NR) with neutrons in the energy range fast to epithermal is a powerful tool used in non-destructive inspection of bulky objects of diverse materials, including those rich in hydrogen, oxygen, nitrogen and carbon. Thus, it can be used to identify, inclusions, voids and thickness differences in materials such as explosive artifacts and narcotics. Aiming at using NR with fast and epithermal neutrons, an Irradiator was constructed composed by: a 241Am-Be source, with 5 Ci activity; a collimator with adjustable collimation rate, L/D; and a shielding device composed by plates of borated paraffin and iron. The test specimens chosen were a Beam Purity Indicator (BPI) and an Indicator of Visual Resolution (IVR). The neutron radiography images obtained had a resolution of 444.4 m and 363.6 m respectively when registered in: 1) the sheet of the nuclear track solid detector, CR-39 type, through X(n,p)Y nuclear reaction; and 2) Kodak Industrex M radiographic film plate in close contact with a boron converter screen, both stored in a Kodak radiographic cassette. |
publishDate |
2013 |
dc.date.issued.fl_str_mv |
2013-06 |
dc.date.accessioned.fl_str_mv |
2018-06-07T17:17:30Z |
dc.date.available.fl_str_mv |
2018-06-07T17:17:30Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
status_str |
publishedVersion |
format |
conferenceObject |
dc.identifier.uri.fl_str_mv |
http://carpedien.ien.gov.br:8080/handle/ien/2403 |
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http://carpedien.ien.gov.br:8080/handle/ien/2403 |
dc.language.iso.fl_str_mv |
eng |
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eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
dc.publisher.none.fl_str_mv |
Instituto de Engenharia Nuclear |
dc.publisher.initials.fl_str_mv |
IEN |
dc.publisher.country.fl_str_mv |
Brasil |
publisher.none.fl_str_mv |
Instituto de Engenharia Nuclear |
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