Thermoluminescence properties and evaluation of trapping parameters of Eu3+ and Dy3+ activated K3Ca2(SO4)3Cl phosphors. Issue 9 (3rd October 2021)

• Record Type: Journal Article
• Authors: Baig, Nahida; Dhoble, N.S.; Parauha, Yatish R.; Joshi, Meenal; Dhoble, S.J.
• Is Part Of: Radiation effects and defects in solids. Volume 176:Issue 9/10(2021)
• Page Start: 845
• Page End: 859
• Publication Date: 2021-10-03
• Subjects: Thermoluminescence -- wet chemical method -- halo-sulfate phosphors -- trapping parameters -- dosimetry; Radiation chemistry -- Periodicals; Crystals -- Defects -- Periodicals; Crystal lattices -- Periodicals; 530.416
• DOI: 10.1080/10420150.2021.1966631
• Languages: English
• ISSNs: 1042-0150

Abstract

ABSTRACT: In this study, we have reported thermoluminescence (TL) properties and trapping parameters of Eu 3+ and Dy 3+ - doped K3 Ca2 (SO4 )3 Cl phosphors. The host materials have been prepared by a simple cost-effective wet chemical method. The TL glow curves of γ-irradiated halo-sulfate phosphors are observed at a constant heating rate of 5°C/s and a dose rate of 0.3712 kGy/hr for 3Gy dose. The TL glow curve of synthesized phosphor samples has a simple glow curve with an isolated peak. K3 Ca2 (SO4 )3 Cl:Eu 3+ phosphors show TL response linearity in the range of 12Gy–62Gy. But, K3 Ca2 (SO4 )3 Cl:Dy 3+ phosphors show TL response linearity in the range of 12Gy–87Gy. In this work, we have also calculated the trapping parameters of synthesized phosphors by different methods, such as Chen's peak shape method, Initial Rise (IR) Method, Ilich method, E-Shape glow curve method, E-Luschik methods, E-Halperin and Braner method. An easy method of synthesis, simple glow curve with isolated peak, efficient dose response, low value of activator concentration and low fading suggests that these phosphors may be potential candidates for thermoluminescence dosimetry and image storage.