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Proceedings Paper

Plastic optical fibre sensor for in-vivo radiation monitoring during brachytherapy
Author(s): P. Woulfe; F. J. Sullivan; E. Lewis; S. O'Keeffe
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Paper Abstract

An optical fibre sensor is presented for applications in real-time in-vivo monitoring of the radiation dose a cancer patient receives during seed implantation in Brachytherapy. The sensor is based on radioluminescence whereby radiation sensitive scintillation material is embedded in the core of a 1mm plastic optical fibre. Three scintillation materials are investigated: thallium-doped caesium iodide (CsI:Tl), terbium-doped gadolinium oxysulphide (Gd2O2S:Tb) and europium-doped lanthanum oxysulphide (La2O2S:Eu). Terbium-doped gadolinium oxysulphide was identified as being the most suitable scintillator and further testing demonstrates its measureable response to different activities of Iodine-125, the radio-active source commonly used in Brachytherapy for treating prostate cancer.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96342I (28 September 2015); doi: 10.1117/12.2195213
Show Author Affiliations
P. Woulfe, Galway Clinic (Ireland)
Univ. of Limerick (Ireland)
F. J. Sullivan, Galway Clinic (Ireland)
National Univ. of Ireland Galway (Ireland)
E. Lewis, Univ. of Limerick (Ireland)
S. O'Keeffe, Univ. of Limerick (Ireland)

Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

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