Title :

Investigation of the Incorporation of Cerium Ions in MCVD-Silica Glass Preforms for Remote Optical Fiber Radiation Dosimetry

Author(s) :

Bouet, Monika [Auteur]
El Hamzaoui, Hicham [Auteur]
Ouerdane, Youcef [Auteur]
Mahiou, Rachid [Auteur]
Chadeyron, Geneviève [Auteur]
Bigot, Laurent [Auteur]
Delplace-Baudelle, Karen [Auteur]
Habert, Rémi [Auteur]
Plus, Stéphane [Auteur]
Cassez, Andy [Auteur]
Bouwmans, Géraud [Auteur]
Bouazaoui, Mohamed [Auteur]
Morana, Adriana [Auteur]
Boukenter, Aziz [Auteur]
Girard, Sylvain [Auteur]
Capoen, Bruno [Auteur]
Photonique [Photonique]

Journal title :

Sensors

Pages :

3362

Publisher :

MDPI

Publication date :

2021-05

ISSN :

1424-8220

HAL domain(s) :

Physique [physics]/Physique [physics]/Optique [physics.optics]

English abstract : [en]

The incorporation of Ce3+ ions in silicate glasses is a crucial issue for luminescence-based sensing applications. In this article, we report on silica glass preforms doped with cerium ions fabricated by modified chemical ...
Show more >The incorporation of Ce3+ ions in silicate glasses is a crucial issue for luminescence-based sensing applications. In this article, we report on silica glass preforms doped with cerium ions fabricated by modified chemical vapor deposition (MCVD) under different atmospheres in order to favor the Ce3+ oxidation state. Structural analysis and photophysical investigations are performed on the obtained glass rods. The preform fabricated under reducing atmosphere presents the highest photoluminescence (PL) quantum yield (QY). This preform drawn into a 125 µm-optical fiber, with a Ce-doped core diameter of about 40 µm, is characterized to confirm the presence of Ce3+ ions inside this optical fiber core. The fiber is then tested in an all-fibered X-ray dosimeter configuration. We demonstrate that this fiber allows the remote monitoring of the X-ray dose rate (flux) through a radioluminescence (RL) signal generated around 460 nm. The response dependence of RL versus dose rate exhibits a linear behavior over five decades, at least from 330 µGy(SiO2)/s up to 22.6 Gy(SiO2)/s. These results attest the potentialities of the MCVD-made Ce-doped material, obtained under reducing atmosphere, for real-time remote ionizing radiation dosimetry.Show less >

Language :

Anglais

Popular science :

Non

Collections :

• Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM) - UMR 8523

Source :

Harvested from HAL