Thermoluminescence in β-irradiated SrZnF4:Dy TLD phosphor
| Autor: | Tushar R. Shelke, S.J. Dhoble, V.M. Nanoti |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Nuclear and High Energy Physics
Radiation Materials science Photoluminescence business.industry Analytical chemistry Phosphor Atmospheric temperature range Condensed Matter Physics Thermoluminescence Optics X-ray crystallography General Materials Science Emission spectrum Thermoluminescent dosimeter Irradiation business |
| Zdroj: | Radiation Effects and Defects in Solids. 169:157-164 |
| ISSN: | 1029-4953 1042-0150 |
| DOI: | 10.1080/10420150.2013.841159 |
| Popis: | SrZnF4:Dy phosphor was prepared by the wet chemical synthesis and characterized for its X-ray diffraction, thermoluminescence (TL) and photoluminescence (PL) properties. The PL emission spectra for SrZnF4:Dy3+ phosphor at 351 nm excitation give emission at 481 nm (blue) and 575 nm (yellow). The TL properties of SrZnF4:Dy were studied using β-irradiation. The response curve of the prepared phosphor with high-dose β-ray exposure is linear as compared with well-known CaSO4:Dy phosphor. The TL glow curves of SrZnF4:Dy sample showed two well-defined peaks at 143°C (peak-1) and 231°C (peak-2) indicating that two sets of traps are being activated within the particular temperature range and the trapping parameter associated with the prominent glow peaks of SrZnF4:Dy is calculated by using Chen's method. |
| Databáze: | OpenAIRE |
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