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《JOURNAL OF SYNTHETIC CRYSTALS》 1999-02
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Growth of Cd∶PbWO 4 Crystal and Its Properties

Liu Xinrong Xu Yanling Yang Chunhui Xu Wusheng Wang Rui (Department of Applied Chemistry,Harbin Institute of Technology,Harbin 150001,China) Chen Gang (Beijing Glass Research Institute,Beijing 100062,China)  
Cd∶PbWO 4 crystals were grown by Czochralski Methtod.The optimal parameters for crystal growth are typically as follows:temperature gradients above and below the surface are 40-50 ℃/cm and 17-25 ℃/cm respectively,pulling rate is 2-3 mm/h,and rotation speed 25-30 r/min. The liquid flow transition can be effectively eliminated under this condition resulting in avoiding the defects induced by this transition.Transmission of Cd∶ PbWO 4 is apparently better than those of other kinds of undpoed PbWO 4 crystals.The luminescence efficiency of Cd∶PbWO 4 is 21.2 p.e/MeV,While 10.5 for high purity PbWO 4 , 8.2 for analytical pure annealed PbWO 4,and 6.7 for unannealed PbWO 4 .The mean decay time of Cd∶PbWO 4 is 26ns.We can conclude that Cd∶PbWO 4 is a scintillation crystal of noble properties.
【Fund】: 国家自然科学基金
【CateGory Index】: O734.2,O782.5
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【Citations】
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【Co-citations】
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1 Sun Shangwen Han Aizheng (Department of Astronautic Electron and Opto Electronic Engineering, Harbin Institute of Technology, Harbin 150001) Li Minghua Xu Yuheng (Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150080);Improvement of PbWO 4 Crystal Optical Properties[J];ACTA OPTICA SINICA;1997-06
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