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 irra...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Published: |
Elsevier
2023
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| Online Access: | http://psasir.upm.edu.my/id/eprint/109235/ |
| _version_ | 1848865318043123712 |
|---|---|
| author | N.T., Abahreh S.F., Abdul Sani S.S., Ismail Fernando, Laura Elizabeth N., Tamchek A. Karim, Julia K.S., Almugren Roslan, Nur Adilah A.S., Siti Shafiqah D.A., Bradley |
| author_facet | N.T., Abahreh S.F., Abdul Sani S.S., Ismail Fernando, Laura Elizabeth N., Tamchek A. Karim, Julia K.S., Almugren Roslan, Nur Adilah A.S., Siti Shafiqah D.A., Bradley |
| author_sort | N.T., Abahreh |
| building | UPM Institutional Repository |
| collection | Online Access |
| 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 × 1012, 2.51 × 1012, 2.58 × 1012
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. |
| first_indexed | 2025-11-15T14:02:48Z |
| format | Article |
| id | upm-109235 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T14:02:48Z |
| publishDate | 2023 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1092352024-08-19T07:09:46Z http://psasir.upm.edu.my/id/eprint/109235/ Thermoluminescence yield of neutron irradiated Gd:Mg-doped silica glass N.T., Abahreh S.F., Abdul Sani S.S., Ismail Fernando, Laura Elizabeth N., Tamchek A. Karim, Julia K.S., Almugren Roslan, Nur Adilah A.S., Siti Shafiqah D.A., Bradley 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 × 1012, 2.51 × 1012, 2.58 × 1012 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 N.T., Abahreh and S.F., Abdul Sani and S.S., Ismail and Fernando, Laura Elizabeth and N., Tamchek and A. Karim, Julia and K.S., Almugren and Roslan, Nur Adilah and A.S., Siti Shafiqah and D.A., Bradley (2023) Thermoluminescence yield of neutron irradiated Gd:Mg-doped silica glass. Radiation Physics and Chemistry, 202. art. no. 110522. pp. 1-8. ISSN 0969-806X; ESSN: 1879-0895 https://linkinghub.elsevier.com/retrieve/pii/S0969806X22005588 10.1016/j.radphyschem.2022.110522 |
| spellingShingle | N.T., Abahreh S.F., Abdul Sani S.S., Ismail Fernando, Laura Elizabeth N., Tamchek A. Karim, Julia K.S., Almugren Roslan, Nur Adilah A.S., Siti Shafiqah D.A., Bradley Thermoluminescence yield of neutron irradiated Gd:Mg-doped silica glass |
| title | 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_short | Thermoluminescence yield of neutron irradiated Gd:Mg-doped silica glass |
| title_sort | thermoluminescence yield of neutron irradiated gd:mg-doped silica glass |
| url | http://psasir.upm.edu.my/id/eprint/109235/ http://psasir.upm.edu.my/id/eprint/109235/ http://psasir.upm.edu.my/id/eprint/109235/ |