Thermoluminescence yield of neutron irradiated Gd:Mg-Doped silica glass
Document Type
Article
Publication Date
1-1-2023
Abstract
The thermoluminescence yield of silica glass doped with Gd2O3 and MgO is investigated as a potential material for neutron dose measurement. The dosimetric materials used herein were prepared via the sol-gel route with concentration of rare earth metal oxides varying from 1 to 10 mol%. Reactor irradiations were made at 750 kW thermal power, producing thermal, epi-thermal and fast neutron fluxes of 5.61 x 10(12), 2.51 x 10(12), 2.58 x 10(12) n/cm(-2).s(-1), respectively. It has been found that 1 mol% Gd:Mg doped SiO2 exhibits excellent dosimetric response over the entire dose range investigated, obtaining a regression coefficient in excess of 96%. The thermoluminescence (TL) glow curves have been deconvolved, at best fit yielding a total of six peaks, the associated activation energies and frequency factors also being obtained. The results indicate sol-gel Gd:Mg doped SiO2 to offer promising performance as a low-cost passive radiation dosimeter, with utility for both radiotherapy and industrial applications.
Keywords
Dosimetry, Gd:Mg-doped silica, Neutron irradiation, Sol-gel, Thermoluminescence
Publication Title
Radiation Physics and Chemistry
Recommended Citation
Abahreh, N. T.; Sani, S. F. Abdul; Ismail, S. S.; Fernando, Laura Elizabeth; Tamchek, N.; Karim, Julia A.; Almugren, K. S.; Roslan, Nur Adilah; Shafiqah, A. S. Siti; and Bradley, D. A., "Thermoluminescence yield of neutron irradiated Gd:Mg-Doped silica glass" (2023). Research Publications (2021 to 2025). 2348.
https://knova.um.edu.my/research_publications_2021_2025/2348
Divisions
PHYSICS
Funders
Princess Nourah bint Abdul Rahman University Researchers Supporting
Volume
202
Publisher
Elsevier
Publisher Location
THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND