Radiotherapy dosimetry based on plastic optical fibre sensors

S. O'Keeffe, M. Grattan, A. Hounsell, D. McCarthy, P. Woulfe, J. Cronin, E. Lewis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Citations (Scopus)


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.

Original languageEnglish
Title of host publicationFifth European Workshop on Optical Fibre Sensors
Publication statusPublished - 24 Sep 2013
Externally publishedYes
Event5th European Workshop on Optical Fibre Sensors, EWOFS 2013 - Krakow, Poland
Duration: 19 May 201322 May 2013


Conference5th European Workshop on Optical Fibre Sensors, EWOFS 2013


  • Brachytherapy
  • Dosimetry
  • Optical fibres
  • PMMA optical fibres
  • Radiotherapy
  • Sensors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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