Microstructure, optical, and scintillation characteristics of Pr3+ doped Lu3Al5O12 optical ceramics
Creators
- 1. Key Laboratory of Transparent Opto-Functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (China)
- 2. Institute of Physics, ASCR, Cukrovarnicka 10, Prague 6, 16253 (Czech Republic)
Description
0.5, 1.0, and 5.0 at. %Pr3+ doped Lu3Al5O12 (Pr:LuAG) optical ceramics are fabricated and compared with Bi4Ge3O12 (BGO) and Pr:LuAG single crystals as for their optical, luminescence and scintillation properties. Radio-luminescence intensity of the fast UV emission based on 5d1→4f Pr3+ transition reaches up to 20 times of that of BGO single crystal reference scintillator. Photoelectron yield of the best performing 0.5 at. % Pr:LuAG ceramic sample is about 1002 phels/MeV, about 30% lower than that of BGO reference sample and about 65% lower than that of Pr:LuAG single crystal. The trapping phenomena at grain boundaries and/or structural defects are proposed as the main cause of degradation of the scintillation response of the Pr:LuAG optical ceramics.
Additional details
Identifiers
- DOI
- 10.1063/1.3530679;
Publishing Information
- Journal Title
- Journal of Applied Physics
- Journal Volume
- 109
- Journal Issue
- 1
- Journal Page Range
- p. 013522-013522.7
- ISSN
- 0021-8979
- CODEN
- JAPIAU
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 43017030
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- CERAMICS; DEFECTS; DOPED MATERIALS; GRAIN BOUNDARIES; LUTETIUM COMPOUNDS; MEV RANGE; MONOCRYSTALS; PHOTOLUMINESCENCE; PRASEODYMIUM ADDITIONS; PRASEODYMIUM IONS; SCINTILLATIONS; TRAPPING; ULTRAVIOLET SPECTRA; YIELDS
- Descriptors DEC
- ALLOYS; CHARGED PARTICLES; CRYSTALS; EMISSION; ENERGY RANGE; IONS; LUMINESCENCE; MATERIALS; MICROSTRUCTURE; PHOTON EMISSION; RARE EARTH ADDITIONS; RARE EARTH ALLOYS; RARE EARTH COMPOUNDS; SPECTRA
Optional Information
- Notes
- (c) 2011 American Institute of Physics