The gas proportional scintillation counter/microstrip gas chamber hybrid detector

Detalhes bibliográficos
Autor(a) principal: Freitas, D. S. A. P.
Data de Publicação: 2003
Outros Autores: Veloso, J. F. C. A., Monteiro, C. M. B., Santos, J. M. F. dos, Conde, C. A. N.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10316/4472
https://doi.org/10.1016/S0168-9002(03)01058-1
Resumo: The gas proportional scintillation counter/microstrip gas chamber (GPSC/MSGC) hybrid detector for X-ray spectrometry is described. The detector uses a CsI-coated microstrip plate placed in direct contact with the gas-filling as the photosensor readout for the GPSC scintillation substituting for the photomultiplier tube (PMT). Usable photosensor maximum gain is limited by optical positive feedback due to the additional scintillation produced in the electron avalanche process at the MSP anodes, in the absence of quenching. A low-photoelectron collection efficiency is achieved in the gas atmosphere, resulting in a scintillation conversion efficiency that is about a factor of 5 lower than that achieved with PMT-based GPSCs. However, energy resolutions of 11% for 5.9 keV X-rays are achieved with this detector.
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spelling The gas proportional scintillation counter/microstrip gas chamber hybrid detectorGas scintillation counterCsI photocathodeThe gas proportional scintillation counter/microstrip gas chamber (GPSC/MSGC) hybrid detector for X-ray spectrometry is described. The detector uses a CsI-coated microstrip plate placed in direct contact with the gas-filling as the photosensor readout for the GPSC scintillation substituting for the photomultiplier tube (PMT). Usable photosensor maximum gain is limited by optical positive feedback due to the additional scintillation produced in the electron avalanche process at the MSP anodes, in the absence of quenching. A low-photoelectron collection efficiency is achieved in the gas atmosphere, resulting in a scintillation conversion efficiency that is about a factor of 5 lower than that achieved with PMT-based GPSCs. However, energy resolutions of 11% for 5.9 keV X-rays are achieved with this detector.http://www.sciencedirect.com/science/article/B6TJM-486BN6Y-M/1/4da741da1d82059bc939bc52156b65692003info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleaplication/PDFhttp://hdl.handle.net/10316/4472http://hdl.handle.net/10316/4472https://doi.org/10.1016/S0168-9002(03)01058-1engNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 505:1-2 (2003) 228-232Freitas, D. S. A. P.Veloso, J. F. C. A.Monteiro, C. M. B.Santos, J. M. F. dosConde, C. A. N.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-05-25T03:03:24Zoai:estudogeral.uc.pt:10316/4472Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:59:45.051659Repositório 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 The gas proportional scintillation counter/microstrip gas chamber hybrid detector
title The gas proportional scintillation counter/microstrip gas chamber hybrid detector
spellingShingle The gas proportional scintillation counter/microstrip gas chamber hybrid detector
Freitas, D. S. A. P.
Gas scintillation counter
CsI photocathode
title_short The gas proportional scintillation counter/microstrip gas chamber hybrid detector
title_full The gas proportional scintillation counter/microstrip gas chamber hybrid detector
title_fullStr The gas proportional scintillation counter/microstrip gas chamber hybrid detector
title_full_unstemmed The gas proportional scintillation counter/microstrip gas chamber hybrid detector
title_sort The gas proportional scintillation counter/microstrip gas chamber hybrid detector
author Freitas, D. S. A. P.
author_facet Freitas, D. S. A. P.
Veloso, J. F. C. A.
Monteiro, C. M. B.
Santos, J. M. F. dos
Conde, C. A. N.
author_role author
author2 Veloso, J. F. C. A.
Monteiro, C. M. B.
Santos, J. M. F. dos
Conde, C. A. N.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Freitas, D. S. A. P.
Veloso, J. F. C. A.
Monteiro, C. M. B.
Santos, J. M. F. dos
Conde, C. A. N.
dc.subject.por.fl_str_mv Gas scintillation counter
CsI photocathode
topic Gas scintillation counter
CsI photocathode
description The gas proportional scintillation counter/microstrip gas chamber (GPSC/MSGC) hybrid detector for X-ray spectrometry is described. The detector uses a CsI-coated microstrip plate placed in direct contact with the gas-filling as the photosensor readout for the GPSC scintillation substituting for the photomultiplier tube (PMT). Usable photosensor maximum gain is limited by optical positive feedback due to the additional scintillation produced in the electron avalanche process at the MSP anodes, in the absence of quenching. A low-photoelectron collection efficiency is achieved in the gas atmosphere, resulting in a scintillation conversion efficiency that is about a factor of 5 lower than that achieved with PMT-based GPSCs. However, energy resolutions of 11% for 5.9 keV X-rays are achieved with this detector.
publishDate 2003
dc.date.none.fl_str_mv 2003
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10316/4472
http://hdl.handle.net/10316/4472
https://doi.org/10.1016/S0168-9002(03)01058-1
url http://hdl.handle.net/10316/4472
https://doi.org/10.1016/S0168-9002(03)01058-1
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 505:1-2 (2003) 228-232
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv aplication/PDF
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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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