Variable sensitivity online optical fibre radiation dosimeter

S. O'Keeffe, E. Lewis, A. Santhanam, J. P. Rolland

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

Abstract

The use of Poly Methyl MethAcrylate (PMMA) optical fibres for monitoring a wide range of radiation doses, for a multi-functional dosimeter, is being investigated. The sensitivity of the fibre to ionising radiation is shown to be dependant on wavelength, with the sensitivity increasing with decreasing wavelength. The fibres exhibit high sensitivity, as high as 0.6dBm -1/kGy, and are capable of monitoring dose ranges between 30Gy and 45kGy. This exceeds the sensing range of all currently commercially available PMMA slab sensors. By carefully selecting the monitoring wavelength, the exact sensitivity and dose range can be achieved, thereby allowing the dosimeter to be suitable for a wide range of applications.

Original languageEnglish
Title of host publicationIEEE Sensors 2009 Conference - SENSORS 2009
Pages787-790
Number of pages4
DOIs
Publication statusPublished - 2009
EventIEEE Sensors 2009 Conference - SENSORS 2009 - Christchurch, New Zealand
Duration: 25 Oct 200928 Oct 2009

Publication series

NameProceedings of IEEE Sensors

Conference

ConferenceIEEE Sensors 2009 Conference - SENSORS 2009
Country/TerritoryNew Zealand
CityChristchurch
Period25/10/0928/10/09

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