Explanipedia

Effect of Rare-Earth Co-Doping on the Trap Level Concentrations in Silica Glasses: Experimental and Theoretical Study of the Light Emission Under X-Rays for Dosimetry Applications Open

Ismail Zghari, Hicham El Hamzaoui, Adriana Morana, Y. Ouerdane, Bruno Capoen , et al. · 2025

In this paper, an experimental and theoretical study was undertaken to assess the impact of rare-earth co-doping of silica glasses on the light emission under X-rays. To this aim, radioluminescence (RL), phosphorescence (PP), and thermolum…

Combined theoretical and experimental study of luminescence in Gd3+-doped silica glass under ionizing radiation Open

Ismail Zghari, Adriana Morana, Hicham El Hamzaoui, Bruno Capoen, Andy Cassez , et al. · 2025

In the ionizing radiation dosimetry domain, there is still an important demand for a compact, reliable, and accurate sensor. Currently, among the dosimeters based on optical techniques, the fibered systems are the most promising solutions.…

Expression of concern: Comparison of photo- and Cu(i)-catalyzed “click” chemistries for the formation of carbohydrate SPR interfaces Open

N. Maalouli, Alexandre Barras, Aloysius Siriwardena, Mohamed Bouazaoui, Rabah Boukherroub , et al. · 2024

Expression of concern for ‘Comparison of photo- and Cu( i )-catalyzed “click” chemistries for the formation of carbohydrate SPR interfaces’ by Nazek Maalouli et al. , Analyst , 2013, 138 , 805–812, https://doi.org/10.1039/C2AN36272D.

Sensitivity Enhancement of Tapered Cerium-Doped Optical Fibers for Dosimetry Applications Open

Fiammetta Fricano, Raffaele Vallifuoco, Damien Lambert, Adriana Morana, Philippe Paillet , et al. · 2024

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Dosimètre à fibre optique en silice pour le contrôle qualité en radiothérapie Open

Marjorie Grandvillain, Franck Mady, Petter Hofverberg, G. Angellier, Mourad Benabdesselam , et al. · 2024

International audience

Ce/Gd-Codoped Sol–Gel Silica Glasses: Toward Temperature-Independent Radiation Dosimeters Open

Ismail Zghari, Hicham El Hamzaoui, Adriana Morana, Y. Ouerdane, Bruno Capoen , et al. · 2024

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Yb2+-Doped Silicate Glasses as Optical Sensor Materials for Cryogenic Thermometry Open

Hicham El Hamzaoui, Igor Razdobreev, Monika Cieslikiewicz‐Bouet, Andy Cassez, V. Andrieux , et al. · 2023

Optical sensors constitute attractive alternatives to resistive probes for the sensing and monitoring of temperature (T). In this work, we investigated, in the range from 2 to 300 K, the thermal behavior of Yb2+ ion photoluminescence (PL) …

63-MeV Proton Beam Profile Monitoring With Radioluminescent Ce-Doped Optical Fiber Sensor Open

Jeoffray Vidalot, Adriana Morana, Olivier Duhamel, Cornelia Hoehr, Hicham El Hamzaoui , et al. · 2023

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The kinetics of silica-based fiber radioluminescence for pulsed-radiation dosimetry Open

Marjorie Grandvillain, Marie Vidal, Petter Hofverberg, Hicham El Hamzaoui, Mohamed Bouazaoui , et al. · 2023

International audience

Study of silica optical fibers for real-time dosimetry of pulsed radiotherapy Open

Marjorie Grandvillain, Marie Vidal, Mohamed Bouazaoui, Hicham El Hamzaoui, Bruno Capoen , et al. · 2023

International audience

Effects of Measurement Temperature on Radioluminescence Processes in Cerium-Activated Silica Glasses for Dosimetry Applications Open

Ismail Zghari, Hicham El Hamzaoui, Bruno Capoen, Franck Mady, Mourad Benabdesselam , et al. · 2023

Cerium-doped-silica glasses are widely used as ionizing radiation sensing materials. However, their response needs to be characterized as a function of measurement temperature for application in various environments, such as in vivo dosime…

Ge-Doped Optical Fibers for Passive and Active Radiation Detection Modes Open

Mourad Benabdesselam, Franck Mady, Monika Cieslikiewicz‐Bouet, Wilfried Blanc, Hicham El Hamzaoui , et al. · 2023

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Radioluminescence Processes in Cerium-Doped Silica Glasses Open

Ismail Zghari, Hicham El Hamzaoui, Bruno Capoen, Andy Cassez, Géraud Bouwmans , et al. · 2023

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Radiation Induced Attenuation and Luminescence Study in Radioluminescent Optical Fibers Open

Nourdine Kerboub, Diego Di Francesca, Adriana Morana, Hicham El Hamzaoui, Y. Ouerdane , et al. · 2023

We present the experimental characterization of both radiation induced attenuation (RIA) and radioluminescence (RL) of differently doped optical fiber (OF) radiation sensors. We present data for different sample lengths and total ionizing …

Properties of Gd-Doped Sol-Gel Silica Glass Radioluminescence under Electron Beams Open

Daniel Söderström, Oskari Timonen, H. Kettunen, R. Kronholm, Hicham El Hamzaoui , et al. · 2022

The radiation-induced emission (RIE) of Gd3+-doped sol–gel silica glass has been shown to have suitable properties for use in the dosimetry of beams of ionizing radiation in applications such as radiotherapy. Linear electron accelerators a…

Radiation Induced Attenuation and Luminescence study in Radioluminescent Optical Fibres Open

Nourdine Kerboub, Diego Di Francesca, Adriana Morana, Hicham El Hamzaoui, Y. Ouerdane , et al. · 2022

Oral

X-Ray Radioluminescence in Diversely Doped Multimode Silica-Based Optical Fibers Open

Arnaud Meyer, Adriana Morana, Hicham El Hamzaoui, Bruno Capoen, Géraud Bouwmans , et al. · 2022

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Optical Fiber-Based Monitoring of X-ray Pulse Series from a Linear Accelerator Open

Jeoffray Vidalot, Adriana Morana, Hicham El Hamzaoui, A. Boukenter, Géraud Bouwmans , et al. · 2021

We investigated in this work the radioluminescence properties of a Ce-doped multimode silica-based optical fiber (core diameter of 50 µm) manufactured by the sol–gel technique when exposed to the high-energy X-rays (~600 keV) of the ORIATR…

Radioluminescence Response of Ce-, Cu-, and Gd-Doped Silica Glasses for Dosimetry of Pulsed Electron Beams Open

Daniel Söderström, H. Kettunen, Adriana Morana, Arto Javanainen, Y. Ouerdane , et al. · 2021

Radiation-induced emission of doped sol-gel silica glass samples was investigated under a pulsed 20-MeV electron beam. The studied samples were drawn rods doped with cerium, copper, or gadolinium ions, which were connected to multimode pur…

TL Properties of RE-Doped and Co-Doped Sol-Gel Silica Rods. Application to Passive (OSL) and Real-Time (RL) Dosimetry Open

Mourad Benabdesselam, Jessica Bahout, Franck Mady, Wilfried Blanc, Hicham El Hamzaoui , et al. · 2021

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Liquid‐Phase Synthesis of Hydrophilic Luminescent Carbon Dots Using Porous Silica as a Nanotemplate Open

A. V. Vasin, Dmytro Kysil, S. V. Sevostianov, Оксана Ісаєва, G. Yu. Rudko , et al. · 2021

Highly Luminescent Semitransparent Nanocomposites Layout of white light emitting device on the base of 409 nm light-emitting diode and nanoporous silica filled with luminescent carbon nanodots. Highly luminescent semitransparent nanocompos…

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

Monika Cieslikiewicz‐Bouet, Hicham El Hamzaoui, Y. Ouerdane, Rachid Mahiou, Geneviève Chadeyron , et al. · 2021

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 …

Temperature Effect on the Radioluminescence of Cu-, Ce-, and CuCe-Doped Silica-Based Fiber Materials Open

Nourdine Kerboub, Diego Di Francesca, Sylvain Girard, Adriana Morana, Hicham El Hamzaoui , et al. · 2021

We evaluate the temperature effect on the X-ray radiation-induced luminescence (RIL) of Cu- or Ce-single-doped and CuCe-codoped silica glass. Previous investigations showed that these optical materials exhibit interesting dosimetry propert…

Leak-free integrated microfluidic channel fabrication for surface plasmon resonance applications Open

Mohamed-Taieb Bakouche, Sivaramakrishnan Ganesan, David Guérin, D. Hourlier, Mohamed Bouazaoui , et al. · 2020

In this paper, we describe a novel fabrication method of a microfluidic integrated surface plasmon resonance (SPR) gold chip based on a (3-mercaptopropyl) trimethoxy silane (MPTMS) self-assembled monolayer. This monolayer was formed at the…

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

Jessica Bahout, Y. Ouerdane, Hicham El Hamzaoui, Géraud Bouwmans, Mohamed Bouazaoui , et al. · 2020

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 cy…

Remote Measurements of X-Rays Dose Rate Using a Cerium-Doped Air-Clad Optical Fiber Open

Jessica Bahout, Y. Ouerdane, Hicham El Hamzaoui, Géraud Bouwmans, Mohamed Bouazaoui , et al. · 2020

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Investigation of Thermoluminescence Properties of Potential Fibered-OSL Dosimeter Materials Open

Mourad Benabdesselam, Franck Mady, Angela Guttilla, Wilfried Blanc, Hicham El Hamzaoui , et al. · 2020

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Novel Gd3+-doped silica-based optical fiber material for dosimetry in proton therapy Open

Cornelia Hoehr, Adriana Morana, Olivier Duhamel, Bruno Capoen, M. Trinczek , et al. · 2019

Gd3+-doped sol-gel silica glass for remote ionizing radiation dosimetry Open

Hicham El Hamzaoui, Géraud Bouwmans, Bruno Capoen, Andy Cassez, Rémi Habert , et al. · 2019

Gadolinium-doped silica glass was prepared, using the sol-gel route, for ionizing radiation dosimetry applications. Such a glassy rod was drawn to a cane at a temperature of 2000 °C. The structural and optical properties of the obtained ma…

Optical responses of a copper-activated sol-gel silica glass under low-dose and low-dose rate X-ray exposures Open

Nissrine Al Helou, Hicham El Hamzaoui, Bruno Capoen, Géraud Bouwmans, Andy Cassez , et al. · 2019

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