Synthesis and thermoluminescence properties of rare earth-doped NaMgBO3 phosphor

被引：11
作者：
Khan, Z. S. [1 ]
Ingale, N. B. [2 ]
Omanwar, S. K. [3 ]
机构：
[1] BS Patel Coll, Dept Phys, Pimpalgaon Kale 443403, India
[2] Prof Ram Meghe Inst Technol & Res, Badnera 444701, Amravati, India
[3] SGB Amravati Univ, Dept Phys, Amravati 444602, India
来源：
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2016年 / 23卷 / 10期
关键词：
Thermoluminescence; NaMgBO3; Solution combustion synthesis method; Rare earths; Kinetic parameters; COMBUSTION SYNTHESIS; LUMINESCENCE; NACABO3;
D O I：
10.1007/s11356-015-4993-6
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Rare earth (Dy3+ and Sm3+)-doped sodium magnesium borate (NaMgBO3) is synthesized by solution combustion synthesis method keeping their thermoluminescence properties in mind. The reaction produced very stable crystalline NaMgBO3:RE (RE = Dy3+, Sm3+) phosphors. The phosphors are exposed to Co-60 gamma-ray radiations dose of varying rate from 5 to 25 Gy, and their TL characteristics with kinetic parameters are studied. NaMgBO3:Dy3+ phosphor shows two peaks for lower doping concentration of Dy3+ while it reduced to single peak for the higher concentrations of activator Dy3+. NaMgBO3:Dy3+ shows the major glow peak around 200 degrees C while NaMgBO3:Sm3+ phosphors show two well-separated glow peaks at 200 and 332 degrees C respectively. The thermoluminescence intensity of these phosphors was compare with the commercially available TLD-100 (Harshaw) phosphor. The TL responses for gamma-ray radiations dose were found to be linear from 5 to 25 Gy for both phosphors while the fading in each case is calculated for the tenure of 45 days.
引用
收藏
页码：9295 / 9302
页数：8
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