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Thermoluminescence studies of calcium metaborate (CaB2O4) nanocrystals synthesized by solution combustion method

This paper presents the thermoluminescence properties of calcium metaborate (CaB2O4) nanocrystals prepared by solution combustion method. The samples were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy dispersive X-ray (EDX) and thermoluminescen...

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Main Authors: Tengku Kamarul Bahri, T. N. H., Hussin, R., Ahmad, N. E.
Format: Article
Language:English
Published: Penerbit UTM Press 2017
Subjects:
QC Physics
Online Access:http://eprints.utm.my/id/eprint/80671/1/RosliHussin2017_ThermoluminescenceStudiesofCalciumMetaborate.pdf
http://eprints.utm.my/id/eprint/80671/
https://dx.doi.org/10.11113/mjfas.v0n0.580
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spelling my.utm.806712019-06-27T06:15:14Z http://eprints.utm.my/id/eprint/80671/ Thermoluminescence studies of calcium metaborate (CaB2O4) nanocrystals synthesized by solution combustion method Tengku Kamarul Bahri, T. N. H. Hussin, R. Ahmad, N. E. QC Physics This paper presents the thermoluminescence properties of calcium metaborate (CaB2O4) nanocrystals prepared by solution combustion method. The samples were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy dispersive X-ray (EDX) and thermoluminescence (TL) analysis respectively. The XRD patterns showed the orthorhombic structure with the crystallite size at around 27 nm and the FESEM micrograph revealed the formation of nanocrystals with irregular spherical shape. Weight fraction obtained from EDX analysis consequently led to determination of an effective atomic number. It was found that the effective atomic number of CaB2O4, Zeff = 14.1 was equivalent to the effective atomic number of the bone, Zeff = 13.2 with error of 6.8 %. The samples were annealed using the TLD oven and exposed to Cobalt-60 source. TL glow curves were recorded using a Harshaw model 3500 TLD reader. The TL glow curve of this material showed a simple, single, peak located at around 150 °C. The most striking dosimetric feature of these nanocrystals was the excellence of the linearity response of a dose range from 1 Gy up to 100 Gy with R2= 0.9827 compared to the TLD-100 powder with R2= 0.9276. The high linear correlation between dose and TL response to gamma radiation suggests that calcium metaborate nanocrystals can be considered as a promising material to be used in thermoluminescence dosimetry. Penerbit UTM Press 2017 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/80671/1/RosliHussin2017_ThermoluminescenceStudiesofCalciumMetaborate.pdf Tengku Kamarul Bahri, T. N. H. and Hussin, R. and Ahmad, N. E. (2017) Thermoluminescence studies of calcium metaborate (CaB2O4) nanocrystals synthesized by solution combustion method. Malaysian Journal of Fundamental and Applied Sciences, 13 (4). pp. 792-797. ISSN 2289-5891 https://dx.doi.org/10.11113/mjfas.v0n0.580 DOI:10.11113/mjfas.v0n0.580
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/
language English
topic QC Physics
spellingShingle QC Physics
Tengku Kamarul Bahri, T. N. H.
Hussin, R.
Ahmad, N. E.
Thermoluminescence studies of calcium metaborate (CaB2O4) nanocrystals synthesized by solution combustion method
description This paper presents the thermoluminescence properties of calcium metaborate (CaB2O4) nanocrystals prepared by solution combustion method. The samples were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy dispersive X-ray (EDX) and thermoluminescence (TL) analysis respectively. The XRD patterns showed the orthorhombic structure with the crystallite size at around 27 nm and the FESEM micrograph revealed the formation of nanocrystals with irregular spherical shape. Weight fraction obtained from EDX analysis consequently led to determination of an effective atomic number. It was found that the effective atomic number of CaB2O4, Zeff = 14.1 was equivalent to the effective atomic number of the bone, Zeff = 13.2 with error of 6.8 %. The samples were annealed using the TLD oven and exposed to Cobalt-60 source. TL glow curves were recorded using a Harshaw model 3500 TLD reader. The TL glow curve of this material showed a simple, single, peak located at around 150 °C. The most striking dosimetric feature of these nanocrystals was the excellence of the linearity response of a dose range from 1 Gy up to 100 Gy with R2= 0.9827 compared to the TLD-100 powder with R2= 0.9276. The high linear correlation between dose and TL response to gamma radiation suggests that calcium metaborate nanocrystals can be considered as a promising material to be used in thermoluminescence dosimetry.
format Article
author Tengku Kamarul Bahri, T. N. H.
Hussin, R.
Ahmad, N. E.
author_facet Tengku Kamarul Bahri, T. N. H.
Hussin, R.
Ahmad, N. E.
author_sort Tengku Kamarul Bahri, T. N. H.
title Thermoluminescence studies of calcium metaborate (CaB2O4) nanocrystals synthesized by solution combustion method
title_short Thermoluminescence studies of calcium metaborate (CaB2O4) nanocrystals synthesized by solution combustion method
title_full Thermoluminescence studies of calcium metaborate (CaB2O4) nanocrystals synthesized by solution combustion method
title_fullStr Thermoluminescence studies of calcium metaborate (CaB2O4) nanocrystals synthesized by solution combustion method
title_full_unstemmed Thermoluminescence studies of calcium metaborate (CaB2O4) nanocrystals synthesized by solution combustion method
title_sort thermoluminescence studies of calcium metaborate (cab2o4) nanocrystals synthesized by solution combustion method
publisher Penerbit UTM Press
publishDate 2017
url http://eprints.utm.my/id/eprint/80671/1/RosliHussin2017_ThermoluminescenceStudiesofCalciumMetaborate.pdf
http://eprints.utm.my/id/eprint/80671/
https://dx.doi.org/10.11113/mjfas.v0n0.580
_version_ 1643658481918541824
score 13.211869

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