Avalanche-ion back-flow reduction in gaseous electron multipliers based on GEM/MHSP
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/4448 https://doi.org/10.1016/j.nima.2003.12.017 |
Resumo: | We report on avalanche-ion back-flow measurements in the novel Micro-Hole and Strip-Plate (MHSP) multiplier and in gaseous photomultipliers comprising Gas Electron Multipliers (GEMs) followed by an MHSP. In a 3-GEMs/MHSP photomultiplier with reflective photocathode, avalanche-ion back-flow fraction of ~7% and ~2% were recorded for respective effective gains of 107 and 106, in Ar/CH4 (95/5) at 760 Torr. This is about one order of magnitude reduction in ion back-flow compared to the best values measured in 4-GEMs photomultiplier at the same gain. We describe the mode of operation of the MHSP and explain its ion back-flow reduction features. |
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Avalanche-ion back-flow reduction in gaseous electron multipliers based on GEM/MHSPGas avalanche electron multipliersGaseous photomultipliersIon back-flowWe report on avalanche-ion back-flow measurements in the novel Micro-Hole and Strip-Plate (MHSP) multiplier and in gaseous photomultipliers comprising Gas Electron Multipliers (GEMs) followed by an MHSP. In a 3-GEMs/MHSP photomultiplier with reflective photocathode, avalanche-ion back-flow fraction of ~7% and ~2% were recorded for respective effective gains of 107 and 106, in Ar/CH4 (95/5) at 760 Torr. This is about one order of magnitude reduction in ion back-flow compared to the best values measured in 4-GEMs photomultiplier at the same gain. We describe the mode of operation of the MHSP and explain its ion back-flow reduction features.http://www.sciencedirect.com/science/article/B6TJM-4BMBDH7-C/1/cdedfd1e72d3adbcfc9431895ab3e6122004info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleaplication/PDFhttp://hdl.handle.net/10316/4448http://hdl.handle.net/10316/4448https://doi.org/10.1016/j.nima.2003.12.017engNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 523:3 (2004) 334-344Maia, J. M.Mörmann, D.Breskin, A.Chechik, R.Veloso, J. F. C. A.Santos, J. M. F. dosinfo: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:RCAAP2021-10-22T09:44:03Zoai:estudogeral.uc.pt:10316/4448Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:59:44.864562Repositório 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 |
Avalanche-ion back-flow reduction in gaseous electron multipliers based on GEM/MHSP |
title |
Avalanche-ion back-flow reduction in gaseous electron multipliers based on GEM/MHSP |
spellingShingle |
Avalanche-ion back-flow reduction in gaseous electron multipliers based on GEM/MHSP Maia, J. M. Gas avalanche electron multipliers Gaseous photomultipliers Ion back-flow |
title_short |
Avalanche-ion back-flow reduction in gaseous electron multipliers based on GEM/MHSP |
title_full |
Avalanche-ion back-flow reduction in gaseous electron multipliers based on GEM/MHSP |
title_fullStr |
Avalanche-ion back-flow reduction in gaseous electron multipliers based on GEM/MHSP |
title_full_unstemmed |
Avalanche-ion back-flow reduction in gaseous electron multipliers based on GEM/MHSP |
title_sort |
Avalanche-ion back-flow reduction in gaseous electron multipliers based on GEM/MHSP |
author |
Maia, J. M. |
author_facet |
Maia, J. M. Mörmann, D. Breskin, A. Chechik, R. Veloso, J. F. C. A. Santos, J. M. F. dos |
author_role |
author |
author2 |
Mörmann, D. Breskin, A. Chechik, R. Veloso, J. F. C. A. Santos, J. M. F. dos |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Maia, J. M. Mörmann, D. Breskin, A. Chechik, R. Veloso, J. F. C. A. Santos, J. M. F. dos |
dc.subject.por.fl_str_mv |
Gas avalanche electron multipliers Gaseous photomultipliers Ion back-flow |
topic |
Gas avalanche electron multipliers Gaseous photomultipliers Ion back-flow |
description |
We report on avalanche-ion back-flow measurements in the novel Micro-Hole and Strip-Plate (MHSP) multiplier and in gaseous photomultipliers comprising Gas Electron Multipliers (GEMs) followed by an MHSP. In a 3-GEMs/MHSP photomultiplier with reflective photocathode, avalanche-ion back-flow fraction of ~7% and ~2% were recorded for respective effective gains of 107 and 106, in Ar/CH4 (95/5) at 760 Torr. This is about one order of magnitude reduction in ion back-flow compared to the best values measured in 4-GEMs photomultiplier at the same gain. We describe the mode of operation of the MHSP and explain its ion back-flow reduction features. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004 |
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/10316/4448 http://hdl.handle.net/10316/4448 https://doi.org/10.1016/j.nima.2003.12.017 |
url |
http://hdl.handle.net/10316/4448 https://doi.org/10.1016/j.nima.2003.12.017 |
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. 523:3 (2004) 334-344 |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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