Thermoluminescence dosimetry properties and kinetic analysis of K3Ca2(SO4)3F:Dy3+ phosphor

C. M. Mehare; M. D. Mehare; C. Ghanty; N. S. Dhoble; S. J. Dhoble

doi:10.1002/bio.3957

Thermoluminescence dosimetry properties and kinetic analysis of K₃Ca₂(SO₄)₃F:Dy³⁺ phosphor

C. M. Mehare, M. D. Mehare, C. Ghanty, N. S. Dhoble, S. J. Dhoble

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

A trivalent Dy³⁺-activated K₃Ca₂(SO₄)₃F fluoride-based phosphor was synthesized using a solid-state reaction method and characterized for its thermoluminescence (TL) application. The crystal structure and surface morphology of the as-synthesized material was analyzed using X-ray diffraction and scanning electron microscopy. A series of the K₃Ca₂(SO₄)₃F:Dy³⁺ phosphor was irradiated using γ-rays from a ⁶⁰Co source and TL glow curves were recorded using a Nucleonix 1009I TL reader. The glow curve of the prepared phosphor showed a prominent single peak at 278°C. TL characteristics were maximum intensity at 1 mol% of Dy³⁺ ion with a single TL glow peak. The TL glow curve revealed linearity with increase in exposure dose range from 0.1 kGy to 3.0 kGy. Theoretical analysis of the TL glow curve of the γ-ray-irradiated sample was carried out using a computerized glow curve deconvolution method and trapping parameters such as activation energy and frequency factor were calculated using the initial rise method and Ilich’s method. The synthesized Dy³⁺-doped K₃Ca₂(SO₄)₃ phosphor revealed excellent TL properties and was found to be a potential candidate for dosimetric applications.

Original language	English
Pages (from-to)	1869-1877
Number of pages	9
Journal	Luminescence
Volume	36
Issue number	8
DOIs	https://doi.org/10.1002/bio.3957
State	Published - Dec 2021
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2020 John Wiley & Sons, Ltd.

Funding

One of the authors SJD is thankful to Department of Science and Technology (DST), India (Nano Mission) (Project Ref. No. DST/NM/NS/2018/38(G), dated 16 January 2019) for financial assistance and R.T.M.Nagpur University, Nagpur for constant encouragement.

Funders	Funder number
Department of Science and Technology
Department of Science and Technology, Ministry of Science and Technology, India	DST/NM/NS/2018/38

Keywords

activation energy
dosimetry
frequency factor
kinetic parameter
thermoluminescence

Access to Document

10.1002/bio.3957

Cite this

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title = "Thermoluminescence dosimetry properties and kinetic analysis of K3Ca2(SO4)3F:Dy3+ phosphor",

abstract = "A trivalent Dy3+-activated K3Ca2(SO4)3F fluoride-based phosphor was synthesized using a solid-state reaction method and characterized for its thermoluminescence (TL) application. The crystal structure and surface morphology of the as-synthesized material was analyzed using X-ray diffraction and scanning electron microscopy. A series of the K3Ca2(SO4)3F:Dy3+ phosphor was irradiated using γ-rays from a 60Co source and TL glow curves were recorded using a Nucleonix 1009I TL reader. The glow curve of the prepared phosphor showed a prominent single peak at 278°C. TL characteristics were maximum intensity at 1 mol% of Dy3+ ion with a single TL glow peak. The TL glow curve revealed linearity with increase in exposure dose range from 0.1 kGy to 3.0 kGy. Theoretical analysis of the TL glow curve of the γ-ray-irradiated sample was carried out using a computerized glow curve deconvolution method and trapping parameters such as activation energy and frequency factor were calculated using the initial rise method and Ilich{\textquoteright}s method. The synthesized Dy3+-doped K3Ca2(SO4)3 phosphor revealed excellent TL properties and was found to be a potential candidate for dosimetric applications.",

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AU - Dhoble, S. J.

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