Journal of Inorganic Materials ›› 2015, Vol. 30 ›› Issue (8): 809-813.doi: 10.15541/jim20150080

• Orginal Article • Previous Articles     Next Articles

Growth and Scintillation Properties of Ce:Li6Lu(10BO3)3 Crystal

Wei LIU1,2(), Shang-Ke PAN1(), Huan-Ying LI1, Yong JIANG3, Xiao-Feng CHEN1, Guo-Hao REN1()   

  1. 1. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
    3. Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China
  • Received:2015-02-05 Revised:2015-04-04 Online:2015-08-20 Published:2015-07-21
  • About author:LIU Wei. E-mail: liuwei@student.sic.ac.cn

Abstract:

To improve the neutron detection efficiency, Ce:Li6Lu(10BO3)3 crystal was grown by Czochralski method from the raw materials enriched with 10B isotopes. The X-ray excited luminescence of Ce:Li6Lu(10BO3)3 crystal presents an emission band from 360 nm to 480 nm corresponding to 5d - 4f transitions of Ce3+ ions. The scintillation efficiency of Ce:Li6Lu (10BO3)3 crystal was 3.9 times as large as that of BGO crystal, and the photoluminescence decay time excited by 350 nm and scintillation decay time excited by 137Cs γ-ray source were 21.0 ns and 31.7 ns, respectively. The relative light output of Ce:Li6Lu(10BO3)3 crystal excited with 662 keV γ-ray from 137Cs was 20% that of CsI(Tl) crystal and the energy resolution was measured to be 9.7%. In the neutron energy spectrum excited by moderated 252Cf neutron source, the obvious full energy peak of neutron was observed and the energy resolution was 33%. With the relatively high scintillation efficiency, fast decay time and good neutron detection efficiency, Ce:Li6Lu(10BO3)3 crystal is a promising fast scintillator for neutron detection applications.

Key words: Ce:Li6Lu(10BO3)3 crystal, neutron detection, Czochralski method, scintillation crystal

CLC Number: 

  • O734