Scintillating microcavities for X-ray imaging sensors

• Autor(es): Rocha, J. G. ; Minas, Graça ; Gonçalves, L. M. ; Lanceros-Méndez, S.
• Data: 2006
• Identificador Persistente: http://hdl.handle.net/1822/5531
• Origem: RepositóriUM - Universidade do Minho
• Assunto(s): X-ray; Detector; Scintillator; SU8; Micromachining
• Tipo de Documento: Documento de conferência
• Idioma: Inglês

Descrição

Over the last years several prototypes of detectors for digital radiography, based on different approaches, have been developed. One those approaches is based on scintillating crystals, which convert the x-ray energy into visible light that will be detected by photodetectors. The biggest difficulty of this kind of detectors is the fact that the produced visible light must be guided to the photodetectors. This can be achieved through coating of reflective material on and around each scintillator. This article describes the fabrication process of an x-ray detector based on scintillators and walls of a reflective material, aluminum, which guide the visible light to the photodetectors placed below the scintillators.