| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8171549 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2016 | 5 Pages |
Abstract
The luminescent properties of LSO:Ce (1Â mol%) scintillators were characterized systematically under vacuum ultraviolet (VUV)-UV excitation. Under 185Â nm VUV excitation, a broad emission band was detected in the wavelength range from 350Â nm to 600Â nm at different temperatures, which is ascribed to the 5dâ4f electron transitions of Ce3+. Excitation wavelength and temperature effects on luminescent properties of LSO:Ce ceramic scintillators were investigated in this paper. At 50Â K, the emission intensity of Ce1 (Ce3+ locating in seven-oxygen-coordinated site) was much stronger than that of Ce2 (Ce3+ locating in six-oxygen-coordinated site), and the total emission intensity excited by 355Â nm (Ce1) was higher than that excited by 185Â nm (host). The total luminescence intensity increases as the rising temperature in the temperature range of 150-300Â K, which is originated from thermal enhancement of transportation of free carriers dominating Ce1 emission.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
Lingcong Fan, Xiaoxin Zhang, Debao Lin, Ying Shi, Jieyu Zhang, Jianjun Xie, Fang Lei, Lei Zhang, Liang Chen, Hui Yuan,