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Gamma irradiation response in photonic crystal and standard optical fiber Bragg grating sensors for radiation dosimetry
Author(s): Desmond Baccini; Steven Hinckley; John Canning; Kevin Cook; Gary Allwood; Graham Wild; Justin Davies; Connie Banos
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Paper Abstract

In this paper, we report the response of Cobalt-60 gamma irradiation on Photonic Crystal Fibre Bragg gratings (PCFFBGs) and standard commercial FBGs (STD-FBGs). Optical measurements were performed to determine the shift of the Bragg wavelength as a function of accumulated dose and relaxation time. To simulate real time conditions of a radiation dosimeter, the FBGs are examined through three consecutive radiation stages followed by very limited recovery times. We were able to obtain a Bragg wavelength shift with both sets of FBGs. The PCF-FBGs response included strong recovery after each irradiation compared to the STD-FBGs. This makes the PCF-FBGs strong candidates as optical fibre FBG sensors in the area of radiation dosimetry.

Paper Details

Date Published: 30 December 2019
PDF: 2 pages
Proc. SPIE 11200, AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019, 112000O (30 December 2019); doi: 10.1117/12.2539904
Show Author Affiliations
Desmond Baccini, Edith Cowan Univ. (Australia)
Steven Hinckley, Edith Cowan Univ. (Australia)
John Canning, Univ. of Technology, Sydney (Australia)
Kevin Cook, Univ. of Technology, Sydney (Australia)
Gary Allwood, SAGE Automation Pty Ltd. (Australia)
Graham Wild, RMIT Univ. (Australia)
Justin Davies, Australian Nuclear Science and Technology Organisation (Australia)
Connie Banos, Australian Nuclear Science and Technology Organization (Australia)


Published in SPIE Proceedings Vol. 11200:
AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019
Arnan Mitchell; Halina Rubinsztein-Dunlop, Editor(s)

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