Abahreh, N. T. and Sani, S. F. Abdul and Ismail, S. S. and Fernando, Laura Elizabeth and Tamchek, N. and Karim, Julia A. and Almugren, K. S. and Roslan, Nur Adilah and Shafiqah, A. S. Siti and Bradley, D. A. (2023) Thermoluminescence yield of neutron irradiated Gd:Mg-Doped silica glass. Radiation Physics and Chemistry, 202. ISSN 0969-806X, DOI https://doi.org/10.1016/j.radphyschem.2022.110522.
Full text not available from this repository.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.
| Item Type: | Article |
|---|---|
| Funders: | Princess Nourah bint Abdul Rahman University Researchers Supporting |
| Uncontrolled Keywords: | Dosimetry; Gd:Mg-doped silica; Neutron irradiation; Sol-gel; Thermoluminescence |
| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Science > Department of Physics |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 27 Nov 2024 04:22 |
| Last Modified: | 27 Nov 2024 06:38 |
| URI: | http://eprints.um.edu.my/id/eprint/39424 |
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