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机构地区:[1]Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China [2]Department of Physics, Sun Yat-Sen University, Guangzhou 510275, China [3]Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China,State Key Laboratory of Optoelectronic Materials and Technology, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, China
出 处:《Journal of Rare Earths》2006年第3期276-280,共5页稀土学报(英文版)
基 金:ProjectsupportedbytheNationalKeyProjectofBasicResearchofChina(G1998061312)
摘 要:SrB6010:Tb phosphor was synthesized by high-temperature solid state reaction. The influences of Ce or Li as a co-dopant, Tb concentration and irradiation dose exposure on TL of SrB6010 : Tb were investigated. Results show that Ce or Li as a co-dopant can not improve the sensitivity of SrB6010:Tb phosphor. TL response depends on Tb concentration and 0.02 is the optimum in the concentration range from 0.01 to 0.10. Using the optimum Tb concentration, we calculated the kinetic parameters of SrB6010:Tb employing the peak shape method, and suggested the phosphor obeying the second order kinetics. TL emission intensity is linearly dependent on the irradiation dose within the dose range of 50 - 200 Gy. The characteristic Tb^3+ ion emission was observed in TL emission spectrum.SrB6010:Tb phosphor was synthesized by high-temperature solid state reaction. The influences of Ce or Li as a co-dopant, Tb concentration and irradiation dose exposure on TL of SrB6010 : Tb were investigated. Results show that Ce or Li as a co-dopant can not improve the sensitivity of SrB6010:Tb phosphor. TL response depends on Tb concentration and 0.02 is the optimum in the concentration range from 0.01 to 0.10. Using the optimum Tb concentration, we calculated the kinetic parameters of SrB6010:Tb employing the peak shape method, and suggested the phosphor obeying the second order kinetics. TL emission intensity is linearly dependent on the irradiation dose within the dose range of 50 - 200 Gy. The characteristic Tb^3+ ion emission was observed in TL emission spectrum.
关 键 词:THERMOLUMINESCENCE strontium hexaborate TERBIUM rare earths
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