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

页码：335 / 339

页数：5

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