Journal
CRYSTALS
Volume 11, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/cryst11091149
Keywords
Ce; LuAG; single crystal fiber; crystal growth; scintillation
Funding
- International Partnership Program of Chinese Academy of Sciences [121631KYSB20180045]
- National Natural Science Foundation of China [51872309, U1832106, 61925508, 62005302]
- Science and Technology Commission of Shanghai Municipality [20511107400, ZJ2020-ZD-005]
- Science Foundation for Youth Scholar of State Key Laboratory of High Performance Ceramics and Superfine Microstructures [SKL201904]
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Ce:LuAG SCFs with a diameter of 1 mm were grown using laser-heated pedestal growth method with transparent ceramic as the source rod. The SCFs maintained excellent scintillation performance and optical properties, making them a potential candidate material for detectors.
Scintillation single crystal fibers (SCFs) have great potential applications in the new generation of high-energy ray and particle detectors due to their morphological advantages. In this work; Ce:LuAG SCFs with a diameter of 1 mm were grown along the direction of [111] by laser-heated pedestal growth (LHPG) method using a transparent ceramic as the source rod; and a doping concentration was 0.1 at%, 0.3 at%, 1 at%, respectively. The effects of growth rate and annealing in air on the scintillation and optical properties of SCF are discussed in detail. The results of analyzing the absorption spectra; radioluminescence (RL) spectra; pulse-height spectra and fluorescence lifetime of SCFs show that the SCF maintains excellent scintillation performance while having a fiber structure. Therefore; Ce:LuAG SCF is a potential candidate material for detector.
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