Luminescence and scintillation properties of Ce3+-activated Cs2NaGdCl6, Cs3GdCl6, Cs2NaGdBr6 and Cs3GdBr6

被引：13

作者：

Samulon, E. C. ^{[1
]}

Gundiah, G. ^{[1
]}

Gascon, M. ^{[1
]}

Khodyuk, I. V. ^{[1
]}

Derenzo, S. E. ^{[1
]}

Bizarri, G. A. ^{[1
]}

Bourret-Courchesne, E. D. ^{[1
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

来源：

JOURNAL OF LUMINESCENCE | 2014年 / 153卷

关键词：

Scintillator; gamma-ray detector; Non-proportionality; Elpasolite; SINGLE-CRYSTAL; CE3+; ELPASOLITES; LANTHANIDE;

D O I：

10.1016/j.jlumin.2014.02.021

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on the structure, scintillation and luminescence properties of Cs2BGdX6:Ce (where B=Na, Cs; X=Cl, Br). Single crystals were obtained for four different compounds with both cubic and monoclinic structures. gamma-ray spectroscopy measurements revealed light yields of 27,000 ph/MeV, 24,500 ph/MeV, 48,000 ph/MeV and 47,000 ph/MeV and energy resolutions of 4.0%, 4.5%, 3.3%, and 4.0% for Cs2NaGdCl6:Ce, Cs3GdCl6:Ce, Cs2NaGdBr6:Ce and Cs3GdBr6:Ce, respectively. X-ray emission and optical emission measurements of the samples exhibited both the characteristic Ce3+ 5d-4f emission and the Gd3+ 4f-4f emission. The optimal concentration of Ce3+ for these compounds was also determined from X-ray excited luminescence decay measurements of polycrystalline forms of these materials. Published by Elsevier B.V.

引用

页码：64 / 72

页数：9

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