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Article

Cu/Ce-co-Doped Silica Glass as Radioluminescent Material for Ionizing Radiation Dosimetry

1
Univ-Lille, CNRS, UMR 8523-PhLAM-Physique des Lasers Atomes et Molécules, F-59000 Lille, France
2
Univ Lyon, Laboratoire H. Curien, UJM-CNRS-IOGS, 18 rue du Pr. Benoît Lauras 42000, Saint-Etienne, France
*
Author to whom correspondence should be addressed.
Materials 2020, 13(11), 2611; https://doi.org/10.3390/ma13112611
Received: 16 April 2020 / Revised: 7 May 2020 / Accepted: 2 June 2020 / Published: 8 June 2020
(This article belongs to the Special Issue Sol-Gel-Derived Materials)
Optically activated glasses are essential to the development of new radiation detection systems. In this study, a bulk glassy rod co-doped with Cu and Ce ions, was prepared via the sol-gel technique and was drawn at about 2000 °C into a cylindrical capillary rod to evaluate its optical and radioluminescence properties. The sample showed optical absorption and photoluminescence (PL) bands attributed to Cu+ and Ce3+ ions. The presence of these two ions inside the host silica glass matrix was also confirmed using PL kinetics measurements. The X-ray dose rate was remotely monitored via the radioluminescence (RL) signal emitted by the Cu/Ce scintillating sensor. In order to transport the optical signal from the irradiation zone to the detection located in the instrumentation zone, an optical transport fiber was spliced to the sample under test. This RL signal exhibited a linear behavior regarding the dose rate in the range at least between 1.1 mGy(SiO2)/s and 34 Gy(SiO2)/s. In addition, a spectroscopic analysis of this RL signal at different dose rates revealed that the same energy levels attributed to Cu+ and Ce3+ ions are involved in both the RL mechanism and the PL phenomenon. Moreover, integrated intensities of the RL sub-bands related to both Cu+ and Ce3+ ions depend linearly on the dose rate at least in the investigated range from 102 mGy(SiO2)/s up to 4725 mGy(SiO2)/s. The presence of Ce3+ ions also reduces the formation of HC1 color centers after X-ray irradiation. View Full-Text
Keywords: Cu+/Ce3+-co-doped silica glass; photoluminescence; ionizing radiation; radioluminescence; dosimetry Cu+/Ce3+-co-doped silica glass; photoluminescence; ionizing radiation; radioluminescence; dosimetry
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MDPI and ACS Style

Bahout, J.; Ouerdane, Y.; El Hamzaoui, H.; Bouwmans, G.; Bouazaoui, M.; Cassez, A.; Baudelle, K.; Habert, R.; Morana, A.; Boukenter, A.; Girard, S.; Capoen, B. Cu/Ce-co-Doped Silica Glass as Radioluminescent Material for Ionizing Radiation Dosimetry. Materials 2020, 13, 2611. https://doi.org/10.3390/ma13112611

AMA Style

Bahout J, Ouerdane Y, El Hamzaoui H, Bouwmans G, Bouazaoui M, Cassez A, Baudelle K, Habert R, Morana A, Boukenter A, Girard S, Capoen B. Cu/Ce-co-Doped Silica Glass as Radioluminescent Material for Ionizing Radiation Dosimetry. Materials. 2020; 13(11):2611. https://doi.org/10.3390/ma13112611

Chicago/Turabian Style

Bahout, Jessica, Youcef Ouerdane, Hicham El Hamzaoui, Géraud Bouwmans, Mohamed Bouazaoui, Andy Cassez, Karen Baudelle, Rémi Habert, Adriana Morana, Aziz Boukenter, Sylvain Girard, and Bruno Capoen. 2020. "Cu/Ce-co-Doped Silica Glass as Radioluminescent Material for Ionizing Radiation Dosimetry" Materials 13, no. 11: 2611. https://doi.org/10.3390/ma13112611

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