Radiotherapy dosimetry based on plastic optical fibre sensors

被引：14
|
作者：
O'Keeffe, S. [1 ]
Grattan, M.
Hounsell, A.
McCarthy, D. [1 ]
Woulfe, P.
Cronin, J.
Lewis, E. [1 ]
机构：
[1] Univ Limerick, Opt Fibre Sensors Res Ctr, Limerick, Ireland
来源：
FIFTH EUROPEAN WORKSHOP ON OPTICAL FIBRE SENSORS | 2013年 / 8794卷
关键词：
Optical fibres; sensors; radiotherapy; brachytherapy; dosimetry; PMMA optical fibres;
D O I：
10.1117/12.2025864
中图分类号：
TP7 [遥感技术];
学科分类号：
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要：
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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页数：4
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