Cover Image

Realization of dysprosium doped lithium magnesium borate glass based TLD subjected to 1–100 Gy photon beam irradiations

We explored the feasibility of using Dy2O3 doped lithium magnesium borate (LMB) glass based thermoluminescence dosimeter (TLD) for high dose dosimetry in the range 1–100 Gy. Such glass system having composition (in mol%) of (70−z) B2O3–20Li2O–10MgO− zDy2O3 (where 0.05 ≤ z ≤ 0.7 mol%) were prepared v...

Full description

Saved in:
Bibliographic Details
Main Authors: Hashim, S., Omar, R. S., Ghoshal, S. K.
Format: Article
Published: Elsevier Ltd. 2019
Subjects:
QC Physics
Online Access:http://eprints.utm.my/id/eprint/87529/
http://dx.doi.org/10.1016/j.radphyschem.2019.05.016
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.utm.87529
record_format eprints
spelling my.utm.875292020-11-08T04:05:38Z http://eprints.utm.my/id/eprint/87529/ Realization of dysprosium doped lithium magnesium borate glass based TLD subjected to 1–100 Gy photon beam irradiations Hashim, S. Omar, R. S. Ghoshal, S. K. QC Physics We explored the feasibility of using Dy2O3 doped lithium magnesium borate (LMB) glass based thermoluminescence dosimeter (TLD) for high dose dosimetry in the range 1–100 Gy. Such glass system having composition (in mol%) of (70−z) B2O3–20Li2O–10MgO− zDy2O3 (where 0.05 ≤ z ≤ 0.7 mol%) were prepared via melt-quenching method and subsequently characterized. Radioactive cobalt (Co-60) source was used for irradiations. The optimum dysprosium (Dy3+) content, annealing characteristics, optimum heating rate, sensitivity, thermal fading, reproducibility, TL glow curve and dose response linearity were determined. XRD pattern confirmed the amorphous nature of the synthesized glasses. DTA analysis authenticated a good glass forming ability and thermal stability of the studied glasses. EDX spectra verified the precise elemental traces in the sample ead to determine the effective atomic number (Zeff) of the studied samples. The optimum pre-annealing temperature and time was correspondingly discerned to be 200 °C and 60 min. Furthermore, glass doped with 0.1 mol% of Dy2O3 revealed optimal TLD reading through simple glow curve with minimal fading, high sensitivity and good reproducibility, good linearity with linear regression coefficient of 0.999 and 0.996 in the dose range of 1–10 Gy and 10–100 Gy, respectively. In short, the achieved TLD was established to be a good candidate for accurate radiation detection in photon beam in the 1–100 Gy range. Elsevier Ltd. 2019 Article PeerReviewed Hashim, S. and Omar, R. S. and Ghoshal, S. K. (2019) Realization of dysprosium doped lithium magnesium borate glass based TLD subjected to 1–100 Gy photon beam irradiations. Radiation Physics and Chemistry, 163 . pp. 1-10. ISSN 0969-806X http://dx.doi.org/10.1016/j.radphyschem.2019.05.016
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic QC Physics
spellingShingle QC Physics
Hashim, S.
Omar, R. S.
Ghoshal, S. K.
Realization of dysprosium doped lithium magnesium borate glass based TLD subjected to 1–100 Gy photon beam irradiations
description We explored the feasibility of using Dy2O3 doped lithium magnesium borate (LMB) glass based thermoluminescence dosimeter (TLD) for high dose dosimetry in the range 1–100 Gy. Such glass system having composition (in mol%) of (70−z) B2O3–20Li2O–10MgO− zDy2O3 (where 0.05 ≤ z ≤ 0.7 mol%) were prepared via melt-quenching method and subsequently characterized. Radioactive cobalt (Co-60) source was used for irradiations. The optimum dysprosium (Dy3+) content, annealing characteristics, optimum heating rate, sensitivity, thermal fading, reproducibility, TL glow curve and dose response linearity were determined. XRD pattern confirmed the amorphous nature of the synthesized glasses. DTA analysis authenticated a good glass forming ability and thermal stability of the studied glasses. EDX spectra verified the precise elemental traces in the sample ead to determine the effective atomic number (Zeff) of the studied samples. The optimum pre-annealing temperature and time was correspondingly discerned to be 200 °C and 60 min. Furthermore, glass doped with 0.1 mol% of Dy2O3 revealed optimal TLD reading through simple glow curve with minimal fading, high sensitivity and good reproducibility, good linearity with linear regression coefficient of 0.999 and 0.996 in the dose range of 1–10 Gy and 10–100 Gy, respectively. In short, the achieved TLD was established to be a good candidate for accurate radiation detection in photon beam in the 1–100 Gy range.
format Article
author Hashim, S.
Omar, R. S.
Ghoshal, S. K.
author_facet Hashim, S.
Omar, R. S.
Ghoshal, S. K.
author_sort Hashim, S.
title Realization of dysprosium doped lithium magnesium borate glass based TLD subjected to 1–100 Gy photon beam irradiations
title_short Realization of dysprosium doped lithium magnesium borate glass based TLD subjected to 1–100 Gy photon beam irradiations
title_full Realization of dysprosium doped lithium magnesium borate glass based TLD subjected to 1–100 Gy photon beam irradiations
title_fullStr Realization of dysprosium doped lithium magnesium borate glass based TLD subjected to 1–100 Gy photon beam irradiations
title_full_unstemmed Realization of dysprosium doped lithium magnesium borate glass based TLD subjected to 1–100 Gy photon beam irradiations
title_sort realization of dysprosium doped lithium magnesium borate glass based tld subjected to 1–100 gy photon beam irradiations
publisher Elsevier Ltd.
publishDate 2019
url http://eprints.utm.my/id/eprint/87529/
http://dx.doi.org/10.1016/j.radphyschem.2019.05.016
_version_ 1683230779325284352
score 13.211869

Similar Items