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

  • E. Lewis
  • , S. O'Keeffe
  • , M. Grattan
  • , A. Hounsell
  • , D. McCarthy
  • , P. Woulfe
  • , J. Cronin
  • , L. Mihai
  • , D. Sporea
  • , A. Santhanam
  • , N. Agazaryan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

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.

Original languageEnglish
Title of host publicationOptical Sensing and Detection III
PublisherSPIE
ISBN (Print)9781628410891
DOIs
Publication statusPublished - 2014
EventOptical Sensing and Detection III - Brussels, Belgium
Duration: 14 Apr 201417 Apr 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9141
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOptical Sensing and Detection III
Country/TerritoryBelgium
CityBrussels
Period14/04/1417/04/14

Keywords

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

Fingerprint

Dive into the research topics of 'Terbium-doped gadolinium oxysulfide (Gd2O2S:Tb) scintillation-based polymer optical fibre sensor for real time monitoring of radiation dose in oncology'. Together they form a unique fingerprint.

Cite this