Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/4375
DC Field | Value | Language |
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dc.contributor.author | Coelho, L. C. C. | - |
dc.contributor.author | Lopes, J. A. M. | - |
dc.contributor.author | Covita, D. S. | - |
dc.contributor.author | Conceição, A. S. | - |
dc.contributor.author | Santos, J. M. F. dos | - |
dc.date.accessioned | 2008-09-01T11:06:03Z | - |
dc.date.available | 2008-09-01T11:06:03Z | - |
dc.date.issued | 2007 | en_US |
dc.identifier.citation | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 575:3 (2007) 444-448 | en_US |
dc.identifier.uri | https://hdl.handle.net/10316/4375 | - |
dc.description.abstract | The performance of a xenon high-pressure gas proportional scintillation counter (GPSC) instrumented with a large area avalanche photodiode (LAAPD) as the VUV-photosensor has been investigated for filling pressures from 1 up to 10 bar, for 22- and 60-keV photons. The LAAPD photosensor is placed directly within the xenon envelope, as a substitute for the photomultiplier tube, avoiding the constraints of the use of a quartz scintillation window for GPSC-photosensor coupling, which absorbs a significant amount of scintillation and is a drawback for applications where large detection areas and high filling pressures are needed. The lowest energy resolutions are achieved for pressures around 5 bar (4.5% and 3.0% full width at half-maximum (FWHM), for 22- and 60-keV photons, respectively). Increasing the pressure to the 8 bar range, competitive energy resolutions of 5.0% and 3.6% are still achieved for 22- and 60-keV photons, respectively. This detector could be a compelling alternative in applications where compactness, large detection area, insensitivity to strong magnetic fields, room temperature operation, large signal-to-noise ratio and good energy resolution are important requirements. | en_US |
dc.description.uri | http://www.sciencedirect.com/science/article/B6TJM-4N7XP3B-2/1/b0382cbbf64836cc7a6321fb3255cf3d | en_US |
dc.format.mimetype | aplication/PDF | en |
dc.language.iso | eng | eng |
dc.rights | openAccess | eng |
dc.subject | X-ray detection | en_US |
dc.subject | Gas proportional counter | en_US |
dc.title | Xenon GPSC high-pressure operation with large-area avalanche photodiode readout | en_US |
dc.type | article | en_US |
dc.identifier.doi | 10.1016/j.nima.2007.02.111 | - |
item.fulltext | Com Texto completo | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
crisitem.author.researchunit | LIBPhys - Laboratory for Instrumentation, Biomedical Engineering and Radiation Physics | - |
crisitem.author.parentresearchunit | University of Coimbra | - |
crisitem.author.orcid | 0000-0002-8841-6523 | - |
Appears in Collections: | FCTUC Física - Artigos em Revistas Internacionais |
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file9bd3beff04a14d628881201c1da02af9.pdf | 290.54 kB | Adobe PDF | View/Open |
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