Synthesis and thermoluminescence characterization of Na6Mg(SO4)4:RE (RE = Ce,Tb) phosphors |
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| Affiliation: | 1. Department of Physics, RTM Nagpur University, Nagpur 440033, India;2. Department of Chemistry, Sevadal Mahila Mahavidyalaya, Nagpur 440009, India;1. Departamento de Física, Universidade Federal de Sergipe, São Cristóvão, SE, Brazil;2. Instituto de Pesquisas Energéticas e Nucleares/Comissão Nacional de Energia Nuclear, São Paulo, Brazil;1. Department of Physics, Jnanabharathi Campus, Bangalore University, Bangalore 560 056, India;2. Department of Physics (S & H), PES Institute of Technology, 100 Feet Ring Road, Banashankari 3rd Stage, Bangalore 560085, India;3. Inter University Accelerator Centre, P.O. Box No. 10502, New Delhi 110 067, India;1. College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan, 030024, PR China;2. Key Lab of Advanced Transducers and Intelligent Control System of Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024, PR China;1. Department of Physics, R.T.M. Nagpur University, Nagpur 440033, India;2. Department of Physics, Nabira Mahavidyalaya, Katol, India;3. Department of Chemistry, Sevadal Mahila Mahavidyalaya, Nagpur 440009, India |
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| Abstract: | Thermoluminescence (TL) properties of sulfate-based phosphors activated by different rare earths have received tremendous attention to the field of radiation dosimetry. Those TL materials based on CaSO4 have been widely applied for medical and environmental dosimetry. Taking this fact into account we have synthesized Na6Mg(SO4)4 doped with Ce and Tb by wet chemical method. The prepared phosphor was characterized by XRD, FTIR, photoluminescence (PL) and thermoluminescence. For TL study, the phosphor is irradiated with γ-rays from 60Co source. For studying luminescence properties, the prepared phosphor was annealed at different temperatures and effects of these annealing temperatures on Na6Mg(SO4)4 samples are investigated and quantified. The changes in the glow curve and PL emission spectrum are also investigated as a function of annealing temperature and the annealing temperature was optimized. For calculation of trapping parameters various methods such as peak shape (PS) method, initial rise (IR) method, various heating rate (VHR) method, and computerized glow curve deconvolution (CGCD) are employed. |
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| Keywords: | Initial rise method Various heating rate method Thermal quenching TLD phosphor |
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