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Radiation response of perfluorinated polymer optical fibers (CYTOP) to low doses of X-rays, protons, and neutrons

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posted on 2024-02-02, 11:15 authored by Olugbenga Jeremiah OlusojiOlugbenga Jeremiah Olusoji, Crystal Penner, Camille Bélanger-Champagne, Vince Strgar, Eva Kasanda, Cornelia Hoehr, Sinead O'KeeffeSinead O'Keeffe

The response of perfluorinated polymer fibers (PF-POFs) in X-ray, proton, and neutron irradiation was investigated for their potential application in clinical environments. Radiation-induced attenuation (RIA) in PF-POF increases linearly with dose and PF-POF was found to be highly sensitive to all the sources of radiation used. A sensitivity of 0.050 ± 0.003, 0.089 ± 0.005, and 0.065 ± 0.003 dB/m/Gy was recorded for 6 MV X-rays, 63 MeV protons, and 400 MeV neutrons, respectively, at a wavelength of 510 nm at room temperature. The PF-POF fibers also exhibit energy dependence—a useful feature in characterizing the depth dose in a proton beam. The high sensitivity of the fiber enables the development of distributed sensing in oncology and can be combined with other solid-state detectors in monitoring radiation dose in mixed radiation environments.

Funding

RGF/EA/180166

History

Publication

IEEE Sensors Journal, 2023, 23, ( 22)

Publisher

Institute of Electrical and Electronics Engineers

Other Funding information

This work was supported in part by the Royal Society and Science Foundation Ireland (SFI) through the Royal Society—SFI University Research Fellowship under Grant UF150618, in part by the Royal Society—SFI Enhancement Award under Grant RGF/EA/180166, and in part by the TRIUMF receives federal funding via a contribution agreement with the National Research Council of Canada. T

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  • Electronic & Computer Engineering

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