Journal
CERAMICS INTERNATIONAL
Volume 43, Issue 8, Pages 6187-6191Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2017.02.016
Keywords
ZnO ceramic; Sintering; Thermostimulated luminescence; Dosimetry
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Funding
- ERA.NET RUS Plus [609556]
- SFERA II project - Transnational Access activities (EU 7th Framework Programme) [312643]
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Two types of ZnO ceramics were fabricated and characterized by XRD, SEM methods. The radioluminescence spectra were measured within the 300-550 K range. The defect luminescence band peaking at similar to 2.35 eV is the dominant one in radioluminescence spectra in both of the fabricated ceramics. The thermostimulated luminescence (TSL) glow-curves were measured after X-ray irradiation at 300 K. It was concluded that the complex overlapping peak within the 320-450 K temperature range consists of two components (similar to 360 similar to 375 K and 400-420 K). The ratio of component intensities differs in both ceramics. The positions of high temperature TSL components (480-520 K) also differ in both samples; therefore not only sintering conditions but also the properties of the initial powder are very important for characteristics of TSL. A linear dependence of peak intensity on irradiation dose was observed up to similar to 3 kGy for ceramic 1 and up to 9 kGy for ceramic 2.
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