Pre-Irradiation Influence on Proton Radioluminescence Responses of Sol-Gel Optical Fibers

We measured the radiation induced luminescence (RIL) of sol-gel made silica-based optical fibers under protons with energy varying between ~27 and 63 MeV. We compared simultaneously the responses of a pristine (i.e., not irradiated) sample and one pre-irradiated under X-rays up to 250 kGy of the different fiber types (cerium, copper, and cerium/terbium co-doped fibers). The obtained results highlight better performances for pre-irradiated samples, thanks to the progressive deep trap filling and reduction of the bright burn effect (BBE). The dose deposited by the protons and the dose rate range within the fiber-sensitive volumes are obtained through Monte Carlo simulations. We observed good linearity of the RIL versus the dose rate in the 1.5–12-Gy(SiO2)/s range and for the different tested proton energies. In particular, no energy dependence is noticed regarding the RIL, within a 5% maximum. All of these characteristics are especially important for proton therapy, where the linear energy transfer changes along the Bragg peak during the tumor treatment. Sol-gel silica-based optical fibers constitute promising solutions for proton flux (or dose rate) monitoring during treatments, providing high spatial resolution.

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Publication Details

Journal
IEEE Transactions on Nuclear Science
Published
2025-04-01
DOI
https://doi.org/10.1109/tns.2025.3553065
Citations
1
Primary Topic
Radiation Detection and Scintillator Technologies
Type
article
Field-Weighted Citation Impact
1.88
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article

Pre-Irradiation Influence on Proton Radioluminescence Responses of Sol-Gel Optical Fibers

Cosimo Campanella, Bruno Capoen, Hicham El Hamzaoui, Y. Ouerdane et al.
1 citations
IEEE Transactions on Nuclear Science
Radiation Detection and Scintillator Technologies
1.88
article

Pre-Irradiation Influence on Proton Radioluminescence Responses of Sol-Gel Optical Fibers

Cosimo Campanella, Bruno Capoen, Hicham El Hamzaoui, Y. Ouerdane, Damien Lambert, Philippe Paillet, Cornelia Hoehr, A. Boukenter, Emmanuel Marin, Fiammetta Fricano, M. Trinczek, Adriana Morana, Sylvain Girard, C. Bélanger-Champagne, Mohamed Bouazaoui
article en
1 citations

Abstract

We measured the radiation induced luminescence (RIL) of sol-gel made silica-based optical fibers under protons with energy varying between ~27 and 63 MeV. We compared simultaneously the responses of a pristine (i.e., not irradiated) sample and one pre-irradiated under X-rays up to 250 kGy of the different fiber types (cerium, copper, and cerium/terbium co-doped fibers). The obtained results highlight better performances for pre-irradiated samples, thanks to the progressive deep trap filling and reduction of the bright burn effect (BBE). The dose deposited by the protons and the dose rate range within the fiber-sensitive volumes are obtained through Monte Carlo simulations. We observed good linearity of the RIL versus the dose rate in the 1.5–12-Gy(SiO2)/s range and for the different tested proton energies. In particular, no energy dependence is noticed regarding the RIL, within a 5% maximum. All of these characteristics are especially important for proton therapy, where the linear energy transfer changes along the Bragg peak during the tumor treatment. Sol-gel silica-based optical fibers constitute promising solutions for proton flux (or dose rate) monitoring during treatments, providing high spatial resolution.

IEEE Transactions on Nuclear ScienceVol. 72(7)
Centre National de la Recherche Scientifique (FR), TRIUMF (CA), Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR), Laboratoire Hubert Curien (FR), CEA DAM Île-de-France (FR), Laboratoire de Physique des Lasers, Atomes et Molécules (FR), Université Jean Monnet (FR)
Openalex Percentile: Top 19%
Radiation Detection and Scintillator Technologies
1.88
DOISourceOpenAlex
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