Thermoluminescence yield of neutron irradiated Gd:Mg-Doped silica glass

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 irradi...

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Main Authors: 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, Bradley, D. A.
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Published: Elsevier 2023
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Online Access:http://eprints.um.edu.my/39424/
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spelling my.um.eprints.394242024-11-27T06:38:24Z http://eprints.um.edu.my/39424/ Thermoluminescence yield of neutron irradiated Gd:Mg-Doped silica glass 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 Bradley, D. A. QC Physics TK Electrical engineering. Electronics Nuclear engineering 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. Elsevier 2023-01 Article PeerReviewed 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 <https://doi.org/10.1016/j.radphyschem.2022.110522>. 10.1016/j.radphyschem.2022.110522
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic QC Physics
TK Electrical engineering. Electronics Nuclear engineering
spellingShingle QC Physics
TK Electrical engineering. Electronics Nuclear engineering
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
Bradley, D. A.
Thermoluminescence yield of neutron irradiated Gd:Mg-Doped silica glass
description 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.
format Article
author 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
Bradley, D. A.
author_facet 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
Bradley, D. A.
author_sort Abahreh, N. T.
title Thermoluminescence yield of neutron irradiated Gd:Mg-Doped silica glass
title_short Thermoluminescence yield of neutron irradiated Gd:Mg-Doped silica glass
title_full Thermoluminescence yield of neutron irradiated Gd:Mg-Doped silica glass
title_fullStr Thermoluminescence yield of neutron irradiated Gd:Mg-Doped silica glass
title_full_unstemmed Thermoluminescence yield of neutron irradiated Gd:Mg-Doped silica glass
title_sort thermoluminescence yield of neutron irradiated gd:mg-doped silica glass
publisher Elsevier
publishDate 2023
url http://eprints.um.edu.my/39424/
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score 13.2263775