Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/4448
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dc.contributor.authorMaia, J. M.-
dc.contributor.authorMörmann, D.-
dc.contributor.authorBreskin, A.-
dc.contributor.authorChechik, R.-
dc.contributor.authorVeloso, J. F. C. A.-
dc.contributor.authorSantos, J. M. F. dos-
dc.date.accessioned2008-09-01T11:07:17Z-
dc.date.available2008-09-01T11:07:17Z-
dc.date.issued2004en_US
dc.identifier.citationNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 523:3 (2004) 334-344en_US
dc.identifier.urihttps://hdl.handle.net/10316/4448-
dc.description.abstractWe 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.en_US
dc.description.urihttp://www.sciencedirect.com/science/article/B6TJM-4BMBDH7-C/1/cdedfd1e72d3adbcfc9431895ab3e612en_US
dc.format.mimetypeaplication/PDFen
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectGas avalanche electron multipliersen_US
dc.subjectGaseous photomultipliersen_US
dc.subjectIon back-flowen_US
dc.titleAvalanche-ion back-flow reduction in gaseous electron multipliers based on GEM/MHSPen_US
dc.typearticleen_US
dc.identifier.doi10.1016/j.nima.2003.12.017-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.openairetypearticle-
item.cerifentitytypePublications-
item.grantfulltextopen-
item.fulltextCom Texto completo-
item.languageiso639-1en-
crisitem.author.researchunitLIBPhys - Laboratory for Instrumentation, Biomedical Engineering and Radiation Physics-
crisitem.author.parentresearchunitUniversity of Coimbra-
crisitem.author.orcid0000-0002-7107-7203-
crisitem.author.orcid0000-0002-8841-6523-
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais
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