Abstract
New single crystals of Ce-doped (1% and 10%) Tl2LiYCl6 (TLYC) were investigated under X-ray and γ-ray excitation. This material belongs to Chloro-elpasolite crystal family and was grown by the two-zone vertical Bridgman technique. X-ray-induced luminescence shows typical Ce3+ - ion emission between 350 and 530 nm peaking at 430 nm. Under 662 keV γ-rays excitation, best energy resolution of 4.8% (FWHM) was found for 1% Ce-concentration. For the same Ce-concentration, a maximum light yield of ∼30 500 ± 3500 ph/MeV was observed at room temperature. Under γ-ray excitation, three decay time components were observed for all Ce-doped samples. Effective Z-number and density of Tl2LiYCl6 were found to be 69 and 4.58 g/cm3, respectively. Due to highly hygroscopic nature of this compound, extra attention was devoted during handling and data taking processes. Overall, the scintillation properties confirm that this material is a promising candidate for medical imaging and radiation detection.
Original language | English |
---|---|
Article number | 7454845 |
Pages (from-to) | 439-442 |
Number of pages | 4 |
Journal | IEEE Transactions on Nuclear Science |
Volume | 63 |
Issue number | 2 |
DOIs | |
State | Published - Apr 2016 |
Keywords
- Decay time
- TlLiYCl
- X-ray excitation
- elpasolite
- energy resolution
- light yield
- scintillation properties