Abstract
It is demonstrate that LiLuSiO4:Ce,Tm has excellent charge carrier storage properties. Comparative studies are performed with the state-of-the art X-ray storage phosphor BaFBr(I):Eu. The thermoluminescence (TL) intensity of the optimized LiLuSiO4:Ce,Tm is four times higher than the TL of BaFBr(I):Eu. After 3 h of storage at room temperature (RT) there is still 94% of initial thermoluminescence and only 48% for BaFBr(I):Eu which demonstrates insignificant thermal fading. The signal can be read out by a blue LED and less efficiently by a red laser. It does require higher stimulation energy than in the case of BaFBr(I):Eu. The self-irradiation with a dose rate of 13 µGy h−1 due to 176Lu isotopes is not a serious drawback for application.
Original language | English |
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Article number | 180050 |
Number of pages | 4 |
Journal | Physica Status Solidi - Rapid Research Letters |
DOIs | |
Publication status | Published - 2018 |
Keywords
- cerium
- fading
- self-irradiation
- storage phosphors
- thermoluminescence
- thulium
- traps