Luminescence and Scintillation Characterization of Cs2NaGdBr6: Ce3+ Single Crystal

被引：19

作者：

Rooh, Gul ^{[2
]}

Kim, H. J. ^{[1
]}

Park, H. ^{[1
]}

Kim, Sunghwan ^{[3
]}

机构：

[1] Kyungpook Natl Univ, Dept Phys, Taegu 702701, South Korea

[2] Abdul Wali Khan Univ, Dept Phys, Mardan 23200, Pakistan

[3] Cheongju Univ, Dept Radiol Sci, Chonju 360764, South Korea

来源：

JOURNAL OF LUMINESCENCE | 2012年 / 132卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

X-ray; Scintillation; Light Yield; Energy Resolution; Crystal; PURE; LIMITATIONS; ELPASOLITES; EMISSION; GROWTH;

D O I：

10.1016/j.jlumin.2011.10.015

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Luminescence and scintillation properties of newly discovered bromo-elpasolites Cs2NaGdBr6: Ce3+ (CNGB: Ce3+) are presented. Single crystals of CNGB: Ce3+ with dimensions up to 07 x 10 mm(3) are successfully grown by the Bridgman technique. X-ray excited luminescence measurements of the grown samples showed a broad emission band in the wavelength range from 365 to 470 nm. It offered an energy resolution of 5.1% (FWHM) at 662 key for 10% Ce sample. The light output of the investigated samples increases along with cerium concentration. A maximum light yield of similar to 36,800 ph/MeV is measured for the 10% Ce sample crystal. Under gamma-ray excitation, CNGB: Ce3+ crystals showed three exponential decay time components. The scintillation mechanism in the sample crystal is presented. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：713 / 716

页数：4

共 22 条

[1] Scintillation properties and anomalous Ce3+ emission of Cs2NaREBr6:Ce3+ (RE = La, Y, Lu) [J].