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Passive dosimetry of electron irradiated borosilicate glass slides

Thermoluminescence dosimetry most typically concerns the sensing and quantification of ionizing radiation exposures, with evaluation of absorbed dose arising from electron-hole trapping in well-disposed insulating/semi-conducting media. In this passive form of dosimetry the signal derives from photo...

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Main Authors: Sani, Siti Fairus Abdul, Othman, Mohamad Habrul Ulum, Alqahtani, Amal, Nazeri, Ahmad Ali Z. Ahmad, Almugren, Khulud Saad, Ung, Ngie Min, Hashim, Siti Aiasah, Alkallas, Fatemah H., Bradley, Dora A.
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Published: Elsevier 2021
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QC Physics
Online Access:http://eprints.um.edu.my/34268/
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spelling my.um.eprints.342682022-09-09T04:02:00Z http://eprints.um.edu.my/34268/ Passive dosimetry of electron irradiated borosilicate glass slides Sani, Siti Fairus Abdul Othman, Mohamad Habrul Ulum Alqahtani, Amal Nazeri, Ahmad Ali Z. Ahmad Almugren, Khulud Saad Ung, Ngie Min Hashim, Siti Aiasah Alkallas, Fatemah H. Bradley, Dora A. QC Physics Thermoluminescence dosimetry most typically concerns the sensing and quantification of ionizing radiation exposures, with evaluation of absorbed dose arising from electron-hole trapping in well-disposed insulating/semi-conducting media. In this passive form of dosimetry the signal derives from photons released post-irradiation heating of the dosimeter over a specific temperature range. Herein, for entrance doses from 2 Gy up to 250 kGy, investigation is made of the thermoluminescence properties of electron irradiated borosilicate glass (SiO2-B2O3), the samples deriving from commercial microscope slides (coverslips) of thickness 1.0 mm. The coverslips provide linear TL response over a wide range of radiation dose, through use of a clinical linear accelerator in a lower dose regime (2-10 Gy) and use of a product-irradiation electron linac in a higher dose regime (25 kGy-250 kGy), obtaining a regression coefficient in excess of 96%. In the high dose regime comparison has been made with the response of Ge-B doped Flat Fibre (FF) and Ge-B doped photonic crystal fibre (PCF) (collapsed). Deconvolution shows the glow curves of the borosilicate glass to be formed of five overlapping peaks, with figures of merit (FOM) of between 0.62 - 1.72 and 0.87-1.00 for the particular dose ranges 2-10 Gy and 25 kGy-250 kGy respectively. Through use of Glowfit deconvolution software, the key trapping parameters of activation energy and frequency factor were calculated for the borosilicate glass slide. Elsevier 2021-01 Article PeerReviewed Sani, Siti Fairus Abdul and Othman, Mohamad Habrul Ulum and Alqahtani, Amal and Nazeri, Ahmad Ali Z. Ahmad and Almugren, Khulud Saad and Ung, Ngie Min and Hashim, Siti Aiasah and Alkallas, Fatemah H. and Bradley, Dora A. (2021) Passive dosimetry of electron irradiated borosilicate glass slides. Radiation Physics and Chemistry, 178 (SI). ISSN 0969-806X, DOI https://doi.org/10.1016/j.radphyschem.2020.108903 <https://doi.org/10.1016/j.radphyschem.2020.108903>. 10.1016/j.radphyschem.2020.108903
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
spellingShingle QC Physics
Sani, Siti Fairus Abdul
Othman, Mohamad Habrul Ulum
Alqahtani, Amal
Nazeri, Ahmad Ali Z. Ahmad
Almugren, Khulud Saad
Ung, Ngie Min
Hashim, Siti Aiasah
Alkallas, Fatemah H.
Bradley, Dora A.
Passive dosimetry of electron irradiated borosilicate glass slides
description Thermoluminescence dosimetry most typically concerns the sensing and quantification of ionizing radiation exposures, with evaluation of absorbed dose arising from electron-hole trapping in well-disposed insulating/semi-conducting media. In this passive form of dosimetry the signal derives from photons released post-irradiation heating of the dosimeter over a specific temperature range. Herein, for entrance doses from 2 Gy up to 250 kGy, investigation is made of the thermoluminescence properties of electron irradiated borosilicate glass (SiO2-B2O3), the samples deriving from commercial microscope slides (coverslips) of thickness 1.0 mm. The coverslips provide linear TL response over a wide range of radiation dose, through use of a clinical linear accelerator in a lower dose regime (2-10 Gy) and use of a product-irradiation electron linac in a higher dose regime (25 kGy-250 kGy), obtaining a regression coefficient in excess of 96%. In the high dose regime comparison has been made with the response of Ge-B doped Flat Fibre (FF) and Ge-B doped photonic crystal fibre (PCF) (collapsed). Deconvolution shows the glow curves of the borosilicate glass to be formed of five overlapping peaks, with figures of merit (FOM) of between 0.62 - 1.72 and 0.87-1.00 for the particular dose ranges 2-10 Gy and 25 kGy-250 kGy respectively. Through use of Glowfit deconvolution software, the key trapping parameters of activation energy and frequency factor were calculated for the borosilicate glass slide.
format Article
author Sani, Siti Fairus Abdul
Othman, Mohamad Habrul Ulum
Alqahtani, Amal
Nazeri, Ahmad Ali Z. Ahmad
Almugren, Khulud Saad
Ung, Ngie Min
Hashim, Siti Aiasah
Alkallas, Fatemah H.
Bradley, Dora A.
author_facet Sani, Siti Fairus Abdul
Othman, Mohamad Habrul Ulum
Alqahtani, Amal
Nazeri, Ahmad Ali Z. Ahmad
Almugren, Khulud Saad
Ung, Ngie Min
Hashim, Siti Aiasah
Alkallas, Fatemah H.
Bradley, Dora A.
author_sort Sani, Siti Fairus Abdul
title Passive dosimetry of electron irradiated borosilicate glass slides
title_short Passive dosimetry of electron irradiated borosilicate glass slides
title_full Passive dosimetry of electron irradiated borosilicate glass slides
title_fullStr Passive dosimetry of electron irradiated borosilicate glass slides
title_full_unstemmed Passive dosimetry of electron irradiated borosilicate glass slides
title_sort passive dosimetry of electron irradiated borosilicate glass slides
publisher Elsevier
publishDate 2021
url http://eprints.um.edu.my/34268/
_version_ 1744649168158195712
score 13.211869

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