Comparative study of radiation-induced luminescence between non-doped CsBr transparent ceramic and crystal

被引：20

作者：

Kimura, Hiromi ^{[1
]}

Nakamura, Fumiya ^{[1
]}

Kato, Takumi ^{[1
]}

Nakauchi, Daisuke ^{[1
]}

Kawano, Naoki ^{[1
]}

Okada, Go ^{[1
]}

Kawaguchi, Noriaki ^{[1
]}

Yanagida, Takayuki ^{[1
]}

机构：

[1] Nara Inst Sci & Technol NAIST, Grad Sch Mat Sci, 8916-5 Takayama Cho, Ikoma, Nara 6300192, Japan

来源：

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 2018年 / 126卷 / 03期

基金：

日本科学技术振兴机构;

关键词：

CsBr; Transparent ceramic; Dosimeter; DOSIMETER PROPERTIES; SCINTILLATION PROPERTIES; SINGLE-CRYSTAL; CSCL; PERFORMANCE; EXCITONS; CAF2; PSL; MGO;

D O I：

10.2109/jcersj2.17212

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We synthesized bulk CsBr samples in a transparent ceramic form by spark plasma sintering (SPS) and in a single crystal form by the vertical Bridgman-Stockbarger method, and investigated their optical, scintillation and dosimeter properties. In photoluminescence, scintillation, thermally-stimulated luminescence (TSL) and optically-stimulated luminescence (OSL), the CsBr in both the material forms showed broad emission peaks at around 450 nm, the origin of which was considered to be due to oxygen impurities. The TSL and OSL properties were notably enhanced in the transparent ceramic, in particular. The dosimetric sensitivities were confirmed to be as low as 0.01mGy using TSL but were 1mGy using OSL for both the transparent ceramic and single crystal forms. (C) 2018 The Ceramic Society of Japan. All rights reserved.

引用

页码：184 / 189

页数：6

共 34 条

[1] Pressure dependence of excitons in CsBr and CsI thin films [J].