Influence of Sb and Y co-doping on properties of PbWO4crystal

  • Xie J
  • Yang P
  • Yuan H
 et al. 
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Abstract

This paper presents the growth of co-doped PbWO4:(Sb,Y) crystal by modified Bridgman method and the influence of Sb and Y co-doping on luminescence and scintillation properties of PbWO4crystal. Based on the results of measuring the optical transmission, X-ray excited luminescence, photoluminescence, thermoluminescence, light yield and decay time of PbWO4:(Sb,Y) crystal, it can been seen that at the concentration involved in the study the PbWO4:(Sb,Y) crystal has higher light yield and sharper optical absorption edge. The maximum light yield of 55 p.e./MeV was obtained in co-doped PbWO4:(Sb,Y) crystal with bialkali photomultiplier for a fixed condition of the crystal size of 23×23×20 mm3and the gate width of 200 ns. However, compared to pure PbWO4crystal the co-doping of Sb and Y results in a relatively slower decay component. © 2004 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • A1. Doping
  • A2. Bridgman technique
  • A2. Single-crystal growth
  • B1. Lead tungstate
  • B2. Light yield

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