20 May 2013 Radiotherapy dosimetry based on plastic optical fibre sensors
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Proceedings Volume 8794, Fifth European Workshop on Optical Fibre Sensors; 879418 (2013) https://doi.org/10.1117/12.2025864
Event: Fifth European Workshop on Optical Fibre Sensors, 2013, Krakow, Poland
Abstract
The use of a PMMA based plastic optical fibre in radiotherapy dosimetry is presented. The optical fibre tip is coated with a scintillation material, terbium-doped gadolinium oxysulfide (Gd2O2S:Tb), which fluoresces under ionising radiation. The emitted signal penetrates the fibre and propagates along the fibre where it is remotely monitored using a fluorescence spectrometer. The results demonstrate good repeatability, with a maximum percentage error of 0.59% and the response is independent of dose rate.
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S. O'Keeffe, M. Grattan, A. Hounsell, D. McCarthy, P. Woulfe, J. Cronin, E. Lewis, "Radiotherapy dosimetry based on plastic optical fibre sensors", Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, 879418 (20 May 2013); doi: 10.1117/12.2025864; https://doi.org/10.1117/12.2025864
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