Fabrication and Performance Optimization of Ce-Doped Garnet Scintillation Ceramics with High Light Output and Fast Decay Time

Monday, 10 October 2022: 11:00
Room 308 (The Hilton Atlanta)
J. Li (Shanghai Institute of Ceramics, Chinese Academy of Sciences)
With the development of detectors, the new generation scintillation materials are asked to be of high light yield, fast scintillation decay and low cost. Cerium doped lutetium aluminum garnet (Ce:Lu3Al5O12) scintillator with the merits of high density, nanosecond fast decay time, high scintillation efficiency has attracted much attention. However, there are some "slow scintillation components" in Ce:Lu3Al5O12 single crystals, which limit the scintillation properties improvement. Low temperature fabrication of transparent ceramics is an important way to optimize the "slow scintillation components" and improve the scintillation properties. Based on the Ce:Lu3Al5O12 scintillation ceramics, the design of material components and advanced ceramic preparation technology are combined and applied in this work. In order to achieve the controllable preparation of cerium doped garnet scintillation ceramics with high light yield, fast decay time and good optical quality, the factors that restrict the optical and scintillation properties of cerium doped garnet ceramics are studied and optimized.