Terbium-doped gadolinium oxysulfide (Gd2O2S:Tb) scintillation-based polymer optical fibre sensor for real time monitoring of radiation dose in oncology

被引：3

作者：

Lewis, E. ^{[1
]}

O'Keeffe, S. ^{[1
]}

Grattan, M. ^{[2
]}

Hounsell, A. ^{[2
]}

McCarthy, D. ^{[1
]}

Woulfe, P. ^{[3
]}

Cronin, J. ^{[3
]}

Mihai, L. ^{[4
]}

Sporea, D. ^{[4
]}

Santhanam, A. ^{[5
]}

Agazaryan, N. ^{[5
]}

机构：

[1] Univ Limerick, Opt Fibre Sensors Res Ctr, Limerick, Ireland

[2] Belfast City Hosp, Northern Ireland Canc Ctr, Radiotherapy Phys, Belfast, Antrim, North Ireland

[3] Galway Clin, Dept Radiotherapy Phys, Galway, Ireland

[4] Natl Inst Lasers, Plasma & Radiat Phys, Magurele, Romania

[5] 200 UCLA Med Plaza, Los Angeles, CA 90095 USA

来源：

OPTICAL SENSING AND DETECTION III | 2014年 / 9141卷

关键词：

Optical fibre dosimeter; fluorescence; real time radiation measurement; optical fibre sensor; radiotherapy; brachytherapy; Plastic optical fibres;

D O I：

10.1117/12.2058572

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A PMMA based plastic optical fibre sensor for use in real time radiotherapy dosimetry is presented. The optical fibre tip is coated with a scintillation material, terbium-doped gadolinium oxysulfide (Gd2O2S:Tb), which fluoresces when exposed to ionising radiation (X-Ray). The emitted visible light signal penetrates the sensor optical fibre and propagates along the transmitting fibre at the end of which it is remotely monitored using a fluorescence spectrometer. The results demonstrate good repeatability, with a maximum percentage error of 0.5% and the response is independent of dose rate.

引用

页数：7

共 4 条

[1]

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Lambert, Jamil ;

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Law, Sue ;

Elsey, Justin ;

McKenzie, David R. ;

Suchowerska, Natalka .

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[3]

McCarthy D., 2012, P SPIE, V8421

[4]

McCarthy D., 2011, IEEE SENS C 2011 LIM

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