Emission mechanism of radiophotoluminescence in Ag-doped phosphate glass

被引：91

作者：

Miyamoto, Y. ^{[1
]}

Yamamoto, T. ^{[1
]}

Kinoshita, K. ^{[2
]}

Koyama, S. ^{[2
]}

Takei, Y. ^{[2
]}

Nanto, H. ^{[2
]}

Shimotsuma, Y. ^{[3
]}

Sakakura, M. ^{[3
]}

Miura, K. ^{[3
]}

Hirao, K. ^{[3
]}

机构：

[1] Chiyoda Technol Corp, Oarai Res Ctr, Oarai, Ibaraki 3111313, Japan

[2] Kanazawa Inst Technol, Dev Ctr, Haku San, Ishikawa 9240838, Japan

[3] Kyoto Univ, Grad Sch Engn, Dept Chem Mat, Nishikyo Ku, Kyoto 6158510, Japan

来源：

RADIATION MEASUREMENTS | 2010年 / 45卷 / 3-6期

关键词：

Radiophotoluminescence; Glass dosemeter; Ag+-doped phosphate glass; Photoreduction; Femtosecond pulse laser;

D O I：

10.1016/j.radmeas.2010.01.012

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The objective of this study is to investigate the emission mechanism of radiophotoluminescence (RPL) in the Ag+-doped phosphate glass (glass dosimeter), which is now used as individual radiation dosimeter, because the emission mechanism of RPL in glass dosimeter was not fully understood. Optical properties such as optical absorption spectrum, RPL spectrum and change of RPL spectrum as a function of X-ray irradiation dose were measured for commercially available glass dosimeter. In this study, we discuss the emission mechanism of two RPL peaks at 460 nm and 560 nm, based on the fact that electrons and holes produced by X-ray irradiation are trapped at Ag+ ions to produce Ag-0 and Ag2+ ions, respectively, when the Ag+-doped phosphate glass is exposed to X-ray. We would like to propose the emission mechanism of RPL peaks at 460 nm and 560 nm, concerning with Ag2+ and Ag-0 ions. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：546 / 549

页数：4

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