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Article Dans Une Revue Materials Research Express Année : 2016

Cerium-activated sol–gel silica glasses for radiation dosimetry in harsh environment

Youcef Ouerdane
Aziz Boukenter
Sylvain Girard
Olivier Duhamel
  • Fonction : Auteur
  • PersonId : 1057943
Geneviève Chadeyron
MI
Rachid Mahiou

Résumé

Cerium-doped silica glass has been prepared for ionizing radiation dosimetry applications, using the sol–gel route and densification under different atmospheres. In comparison with the glass densified under air atmosphere, the one obtained after sintering the xerogel under helium gas presents improved optical properties, with an enhancement of the photoluminescence quantum yield up to 33%, which is attributed to a higher Ce3+ ions concentration. Such a glassy rod has been jacketed in a quartz tube and then drawn at high temperature to a cane, which has been used as active material in a fibered remote x-ray radiation dosimeter. The sample exhibited a reversible linear radioluminescence intensity response versus the dose rate up to 30 Gy s−1. These results confirm the potentialities of this material for in vivo or high rate dose remote dosimetry measurements.
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Dates et versions

hal-01297325 , version 1 (04-04-2016)

Identifiants

Citer

Hicham El Hamzaoui, Bruno Capoen, Nissrine Al Helou, Géraud Bouwmans, Youcef Ouerdane, et al.. Cerium-activated sol–gel silica glasses for radiation dosimetry in harsh environment. Materials Research Express, 2016, 3, pp.046201. ⟨10.1088/2053-1591/3/4/046201⟩. ⟨hal-01297325⟩
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