Novel optical fibre-based sensors for neutron and proton beams

Crystal Penner, Peter Woulfe, Boris Stoeber, Cheryl Duzenli, Sinead O'Keeffe, Cornelia Hoehr

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

Abstract

Five different inorganic scintillators combined with an organic optical fibre have been explored for their neutron-sensing capabilities. Yield and signal-to-noise-ratios (SNR) were found for four Europium-activated phosphors and one Terbium-activated phosphor in neutron radiation. Studies showed YVO4:Eu to have the highest signal-to-noise ratio as well as the highest overall signal and Gd2O2S:Eu was found to have the smallest relative SNR in neutron radiation of the phosphors. To explore the possibility of the sensors' ability to discriminate between neutron and gamma radiation, lateral profiles of three sensors were taken. Lateral profiles yielded varied results with the Gd2O2S:Tb profile being closest to SRAM (neutron-only data). Samples were normalized to recorded monitor count rates during irradiations.

Original languageEnglish
Title of host publication2019 IEEE Sensors, SENSORS 2019 - Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728116341
DOIs
Publication statusPublished - Oct 2019
Event18th IEEE Sensors, SENSORS 2019 - Montreal, Canada
Duration: 27 Oct 201930 Oct 2019

Publication series

NameProceedings of IEEE Sensors
Volume2019-October
ISSN (Print)1930-0395
ISSN (Electronic)2168-9229

Conference

Conference18th IEEE Sensors, SENSORS 2019
Country/TerritoryCanada
CityMontreal
Period27/10/1930/10/19

Keywords

  • Gamma radiation
  • neutron
  • optical fibre sensor
  • scintillator

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