New Ce3+ - doped high-grade silica glasses are synthesized by a modified sol-gel method, to be used as scintillators for the detection of X-rays and low energy particles. These glasses have efficiency a factor of 2 higher than state-of-the-art Bi4Ge3O12 crystals, high radiation hardness and high compatibility with the silica-based photonic technology. Powder-in-tube and rod-in-tube techniques are used to fabricate low-loss optical fibres with 135, 220 and 660 microns diameter. Device prototypes are obtained by fusion-splicing these fibres to commercial high numerical aperture optical fibres.
Chiodini, N., Brambilla, G., Vedda, A., DI MARTINO, D., Fasoli, M., Lauria, A., et al. (2004). SiO2 - Based scintillating fibres for X-ray detection. In Proceedings of SPIE - The International Society for Optical Engineering (pp.298-305). SPIE-INT SOC OPTICAL ENGINEERING [10.1117/12.507715].
SiO2 - Based scintillating fibres for X-ray detection
CHIODINI, NORBERTO;VEDDA, ANNA GRAZIELLA;DI MARTINO, DANIELA;FASOLI, MAURO;LAURIA, ALESSANDRO;ROSETTA, EMANUELA
2004
Abstract
New Ce3+ - doped high-grade silica glasses are synthesized by a modified sol-gel method, to be used as scintillators for the detection of X-rays and low energy particles. These glasses have efficiency a factor of 2 higher than state-of-the-art Bi4Ge3O12 crystals, high radiation hardness and high compatibility with the silica-based photonic technology. Powder-in-tube and rod-in-tube techniques are used to fabricate low-loss optical fibres with 135, 220 and 660 microns diameter. Device prototypes are obtained by fusion-splicing these fibres to commercial high numerical aperture optical fibres.
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