Photoelectron collection efficiency at high pressure for a gamma detector envisaging medical imaging

Detalhes bibliográficos
Autor(a) principal: Azevedo, C. D. R.
Data de Publicação: 2007
Outros Autores: Oliveira, C. A. B., Santos, J. M. F. dos, Veloso, J. F. C. A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://proa.ua.pt/index.php/revdeti/article/view/17172
Resumo: Recent developments on gas avalanche detectors based on microstructures operating at high pressure allow fair detection efficiency for hard X- and gamma-rays. A hybrid system combining an assisted scintillation in a highpressure xenon gas medium and two UV photosensors based on microstructures operating face to face, having the xenon medium sandwiched between, is under investigation for imaging purposes. To evaluate the photosensor operation at high pressure, a study of the photoelectron collection efficiency (PCE) is needed. First results show no significant variation on the relative PCE from 1 to 5 bar xenon filling pressure for different applied voltages.
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spelling Photoelectron collection efficiency at high pressure for a gamma detector envisaging medical imagingRecent developments on gas avalanche detectors based on microstructures operating at high pressure allow fair detection efficiency for hard X- and gamma-rays. A hybrid system combining an assisted scintillation in a highpressure xenon gas medium and two UV photosensors based on microstructures operating face to face, having the xenon medium sandwiched between, is under investigation for imaging purposes. To evaluate the photosensor operation at high pressure, a study of the photoelectron collection efficiency (PCE) is needed. First results show no significant variation on the relative PCE from 1 to 5 bar xenon filling pressure for different applied voltages.UA Editora2007-01-01T00:00:00Zconference objectconference objectinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://proa.ua.pt/index.php/revdeti/article/view/17172oai:proa.ua.pt:article/17172Eletrónica e Telecomunicações; Vol 4 No 7 (2007); 822-826Eletrónica e Telecomunicações; vol. 4 n.º 7 (2007); 822-8262182-97721645-0493reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttps://proa.ua.pt/index.php/revdeti/article/view/17172https://proa.ua.pt/index.php/revdeti/article/view/17172/12225https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessAzevedo, C. D. R.Oliveira, C. A. B.Santos, J. M. F. dosVeloso, J. F. C. A.2022-09-26T11:00:11Zoai:proa.ua.pt:article/17172Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:08:07.899430Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Photoelectron collection efficiency at high pressure for a gamma detector envisaging medical imaging
title Photoelectron collection efficiency at high pressure for a gamma detector envisaging medical imaging
spellingShingle Photoelectron collection efficiency at high pressure for a gamma detector envisaging medical imaging
Azevedo, C. D. R.
title_short Photoelectron collection efficiency at high pressure for a gamma detector envisaging medical imaging
title_full Photoelectron collection efficiency at high pressure for a gamma detector envisaging medical imaging
title_fullStr Photoelectron collection efficiency at high pressure for a gamma detector envisaging medical imaging
title_full_unstemmed Photoelectron collection efficiency at high pressure for a gamma detector envisaging medical imaging
title_sort Photoelectron collection efficiency at high pressure for a gamma detector envisaging medical imaging
author Azevedo, C. D. R.
author_facet Azevedo, C. D. R.
Oliveira, C. A. B.
Santos, J. M. F. dos
Veloso, J. F. C. A.
author_role author
author2 Oliveira, C. A. B.
Santos, J. M. F. dos
Veloso, J. F. C. A.
author2_role author
author
author
dc.contributor.author.fl_str_mv Azevedo, C. D. R.
Oliveira, C. A. B.
Santos, J. M. F. dos
Veloso, J. F. C. A.
description Recent developments on gas avalanche detectors based on microstructures operating at high pressure allow fair detection efficiency for hard X- and gamma-rays. A hybrid system combining an assisted scintillation in a highpressure xenon gas medium and two UV photosensors based on microstructures operating face to face, having the xenon medium sandwiched between, is under investigation for imaging purposes. To evaluate the photosensor operation at high pressure, a study of the photoelectron collection efficiency (PCE) is needed. First results show no significant variation on the relative PCE from 1 to 5 bar xenon filling pressure for different applied voltages.
publishDate 2007
dc.date.none.fl_str_mv 2007-01-01T00:00:00Z
dc.type.driver.fl_str_mv conference object
conference object
info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.uri.fl_str_mv https://proa.ua.pt/index.php/revdeti/article/view/17172
oai:proa.ua.pt:article/17172
url https://proa.ua.pt/index.php/revdeti/article/view/17172
identifier_str_mv oai:proa.ua.pt:article/17172
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://proa.ua.pt/index.php/revdeti/article/view/17172
https://proa.ua.pt/index.php/revdeti/article/view/17172/12225
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UA Editora
publisher.none.fl_str_mv UA Editora
dc.source.none.fl_str_mv Eletrónica e Telecomunicações; Vol 4 No 7 (2007); 822-826
Eletrónica e Telecomunicações; vol. 4 n.º 7 (2007); 822-826
2182-9772
1645-0493
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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