Staff View: Investigation on various types of silica fibre as thermoluminescent sensors for ultra-high dose radiation dosimetry

Investigation on various types of silica fibre as thermoluminescent sensors for ultra-high dose radiation dosimetry

With high-dose applications lacking the benefit of an economic yet versatile dosimeter that provides for a wide dynamic dose range, ongoing research is seeking to introduce suitable thermoluminescent (TL) material for such needs. Acknowledging the high potential of silica fibres, as developed by mem...

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Main Authors:	Moradi, Farhad, Mahdiraji, Ghafour Amouzad, Khandaker, Mayeen Uddin, Ung, Ngie Min, Adikan, Faisal Rafiq Mahamd, Khellaf, Imene, Bradley, D.A.
Format:	Article
Published:	Elsevier 2018
Subjects:	QC Physics R Medicine TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://eprints.um.edu.my/21219/ https://doi.org/10.1016/j.sna.2018.02.024
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spelling	my.um.eprints.212192019-05-13T05:12:19Z http://eprints.um.edu.my/21219/ Investigation on various types of silica fibre as thermoluminescent sensors for ultra-high dose radiation dosimetry Moradi, Farhad Mahdiraji, Ghafour Amouzad Khandaker, Mayeen Uddin Ung, Ngie Min Adikan, Faisal Rafiq Mahamd Khellaf, Imene Bradley, D.A. QC Physics R Medicine TK Electrical engineering. Electronics Nuclear engineering With high-dose applications lacking the benefit of an economic yet versatile dosimeter that provides for a wide dynamic dose range, ongoing research is seeking to introduce suitable thermoluminescent (TL) material for such needs. Acknowledging the high potential of silica fibres, as developed by members of this group over the past few years, in present work evaluation has been made of 13 types of fibre, differing in dopant, dopant concentration and diameter including P−, Al−, Er−, Ge− and Al-Tm-doped fibres, ultra-high numerical aperture and borosilicate fibre, and two non-doped fibres, quartz and suprasil F300. Evaluation is made in terms of TL response to photon and electron irradiations with the objective of determining a TL material that can offer sensitive yet extended dose capability, saturating only above the few tens of kGy range. The various silica fibres that have been investigated were found to show saturation levels from 5 kGy for Ge-doped fibre (4 mol %) to 80 kGy for 2 mol % Al−doped silica fibre. Borosilicate fibres demonstrated the greatest potential for high dose dosimetry, maintaining a highly-linear response, any tendency towards saturation only being indicated to beyond receipt of doses of 100 kGy. For this fibre type detailed TL characterizations were conducted, including glow curve analysis, reproducibility and fading tests. The results suggest borosilicate fibre to be suitable for high dose TL dosimetry, providing sufficient sensitivity and appropriate dosimetric characteristics. Elsevier 2018 Article PeerReviewed Moradi, Farhad and Mahdiraji, Ghafour Amouzad and Khandaker, Mayeen Uddin and Ung, Ngie Min and Adikan, Faisal Rafiq Mahamd and Khellaf, Imene and Bradley, D.A. (2018) Investigation on various types of silica fibre as thermoluminescent sensors for ultra-high dose radiation dosimetry. Sensors and Actuators A: Physical, 273. pp. 197-205. ISSN 0924-4247 https://doi.org/10.1016/j.sna.2018.02.024 doi:10.1016/j.sna.2018.02.024
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 R Medicine TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	QC Physics R Medicine TK Electrical engineering. Electronics Nuclear engineering Moradi, Farhad Mahdiraji, Ghafour Amouzad Khandaker, Mayeen Uddin Ung, Ngie Min Adikan, Faisal Rafiq Mahamd Khellaf, Imene Bradley, D.A. Investigation on various types of silica fibre as thermoluminescent sensors for ultra-high dose radiation dosimetry
description	With high-dose applications lacking the benefit of an economic yet versatile dosimeter that provides for a wide dynamic dose range, ongoing research is seeking to introduce suitable thermoluminescent (TL) material for such needs. Acknowledging the high potential of silica fibres, as developed by members of this group over the past few years, in present work evaluation has been made of 13 types of fibre, differing in dopant, dopant concentration and diameter including P−, Al−, Er−, Ge− and Al-Tm-doped fibres, ultra-high numerical aperture and borosilicate fibre, and two non-doped fibres, quartz and suprasil F300. Evaluation is made in terms of TL response to photon and electron irradiations with the objective of determining a TL material that can offer sensitive yet extended dose capability, saturating only above the few tens of kGy range. The various silica fibres that have been investigated were found to show saturation levels from 5 kGy for Ge-doped fibre (4 mol %) to 80 kGy for 2 mol % Al−doped silica fibre. Borosilicate fibres demonstrated the greatest potential for high dose dosimetry, maintaining a highly-linear response, any tendency towards saturation only being indicated to beyond receipt of doses of 100 kGy. For this fibre type detailed TL characterizations were conducted, including glow curve analysis, reproducibility and fading tests. The results suggest borosilicate fibre to be suitable for high dose TL dosimetry, providing sufficient sensitivity and appropriate dosimetric characteristics.
format	Article
author	Moradi, Farhad Mahdiraji, Ghafour Amouzad Khandaker, Mayeen Uddin Ung, Ngie Min Adikan, Faisal Rafiq Mahamd Khellaf, Imene Bradley, D.A.
author_facet	Moradi, Farhad Mahdiraji, Ghafour Amouzad Khandaker, Mayeen Uddin Ung, Ngie Min Adikan, Faisal Rafiq Mahamd Khellaf, Imene Bradley, D.A.
author_sort	Moradi, Farhad
title	Investigation on various types of silica fibre as thermoluminescent sensors for ultra-high dose radiation dosimetry
title_short	Investigation on various types of silica fibre as thermoluminescent sensors for ultra-high dose radiation dosimetry
title_full	Investigation on various types of silica fibre as thermoluminescent sensors for ultra-high dose radiation dosimetry
title_fullStr	Investigation on various types of silica fibre as thermoluminescent sensors for ultra-high dose radiation dosimetry
title_full_unstemmed	Investigation on various types of silica fibre as thermoluminescent sensors for ultra-high dose radiation dosimetry
title_sort	investigation on various types of silica fibre as thermoluminescent sensors for ultra-high dose radiation dosimetry
publisher	Elsevier
publishDate	2018
url	http://eprints.um.edu.my/21219/ https://doi.org/10.1016/j.sna.2018.02.024
_version_	1643691501249626112
score	13.211869

Investigation on various types of silica fibre as thermoluminescent sensors for ultra-high dose radiation dosimetry

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