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https://hdl.handle.net/1822/4314
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Campo DC | Valor | Idioma |
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dc.contributor.author | Rocha, J. G. | - |
dc.contributor.author | Moreira, M. V. | - |
dc.contributor.author | Wolffenbuttel, R. F. | - |
dc.contributor.author | Ramos, N. F. | - |
dc.contributor.author | Lanceros-Méndez, S. | - |
dc.contributor.author | Correia, J. H. | - |
dc.date.accessioned | 2006-02-02T15:28:17Z | - |
dc.date.available | 2006-02-02T15:28:17Z | - |
dc.date.issued | 2002 | - |
dc.identifier.citation | SENSORS 2002 - IEEE INTERNATIONAL CONFERENCE ON SENSORS, 1, Orlando - "Interrnational Conference on Sensors : Proceedings". [S.l. : s.n., 2002]. ISBN 0-7803-7454-1. | eng |
dc.identifier.isbn | 0-7803-7454-1 | - |
dc.identifier.uri | https://hdl.handle.net/1822/4314 | - |
dc.description.abstract | This paper describes a X-rays microdetector based on an array of wells filled with scintillator crystals. A thick-film of aluminum (500 um) is etched by Laser Ablation Technique (LAT) in order to achieve a square well with side of 100 um and 490 um deep vertical sidewalls. The aluminum thick-film was chosen because it is a good reflector in the visible range and for improving the number of photons collected by each photodetector. Also, the cross-talk between adjacent wells is reduced. As first approach, for a 4x4 wells array prototype, LAT is an inexpensive process when compared with Deep Reactive Ion Etching (DRIE) and avoids the need of etching masks. In this system the X-ray energy is first converted to visible light by the scintillator. This light is then detected by a photodetector fabricated in a standard CMOS process. | eng |
dc.description.sponsorship | This work was supported by The Foundation of Science and Technology, Portugal, FCT-CTM/POCTI/33751/1999; Grant-BD SFRH/BD/1296/2000. | por |
dc.language.iso | eng | eng |
dc.publisher | IEEE | eng |
dc.relation | info:eu-repo/grantAgreement/FCT/POCTI/SFRH%2FBD%2F1296%2F2000/PT | - |
dc.rights | openAccess | eng |
dc.subject | Scintillator | eng |
dc.subject | Digital radiology | eng |
dc.subject | X-ray | eng |
dc.subject | Laser ablation | eng |
dc.title | X-rays microdetectors based on an array of scintillators: a maskless process using laser ablation | eng |
dc.type | conferencePaper | eng |
dc.peerreviewed | yes | eng |
oaire.citationStartPage | 556 | por |
oaire.citationEndPage | 559 | por |
oaire.citationIssue | 1 | por |
oaire.citationVolume | 1 | por |
sdum.conferencePublication | Proceedings of IEEE Sensors | por |
Aparece nas coleções: | DEI - Artigos em atas de congressos internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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01037158.pdf | 337,12 kB | Adobe PDF | Ver/Abrir |