Scintillation properties of pure and Ca-doped ZnWO4 crystals

被引：24
|
作者：
Danevich, F. A. [2 ]
Henry, S. [1 ]
Kraus, H. [1 ]
McGowan, R. [1 ]
Mikhailik, V. B. [1 ]
Shkulkova, O. G. [2 ]
Telfer, J. [3 ]
机构：
[1] Univ Oxford, Dept Phys, Oxford OX1 3RH, England
[2] Ukrainian Acad Sci, Inst Nucl Res, UA-03680 Kiev, Ukraine
[3] Hilger Crystals, Margate CT9 4JL, Kent, England
来源：
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2008年 / 205卷 / 02期
关键词：
D O I：
10.1002/pssa.200723205
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Following the investigations of the structure and scintillation properties of Ca-doped zinc tungstate powder [phys. stat. sol. (a) 204, 730 (2007)] a single-crystal of ZnWO4-Ca (0.5 mol%) was grown and characterised. The relative light output, energy resolution and decay characteristics were measured for pure and Ca-doped ZnWO4 scintillatiors. An increase in the light yield of similar to 40% compared with the undoped crystal, and an energy resolution 9.6% (Cs-137) were obtained for Ca-doped ZnWO4. The observed improvement is attributed to the reduction of self-absorption (bleaching) of the crystal. The cause of bleaching as well as the possible contribution of scattering is discussed. (C) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：335 / 339
页数：5
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