Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/16136
Título: | X-Ray image detector based on light guides and scintillators |
Autor(es): | Rocha, J. G. Dias, R. A. Gonçalves, L. M. Minas, Graça Ferreira, A. Costa, Carlos M. Lanceros-Méndez, S. |
Palavras-chave: | Photolithography Scintillation detectors X-ray detectors X-ray image sensors |
Data: | Set-2009 |
Editora: | IEEE |
Revista: | IEEE Sensors Journal |
Resumo(s): | This paper reports on a study concerning the design of an X-ray detector that is suitable to analyze a small area with high spatial resolution. The indirect method of X-ray detection is used, i.e., the X-rays are first converted into visible light, which is then detected. In this design, an array of CsI:Tl scintillators, encapsulated by aluminum walls, is coupled with an array of CMOS photodetectors. This structure, patented and described theoretically by the authors in previous works, can be obtained using the SU-8 negative photoresist as a sacrificial layer. The experimental work consisted in the deposition of a scintillator layer, and an aluminum layer on the active area of a commercially available digital imaging sensor, thus supporting the developed detector design. X-ray imaging tests were performed using the PHILIPS X’Pert equipment. Promising results were obtained, featuring high resolution and detail. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/16136 |
DOI: | 10.1109/JSEN.2009.2026520 |
ISSN: | 1530-437X |
Versão da editora: | http://ieeexplore.ieee.org |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | DEI - Artigos em revistas internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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IEEE sensors journal 2009 Gerardo.pdf Acesso restrito! | Documento principal | 451,41 kB | Adobe PDF | Ver/Abrir |