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- Title
Radiophotoluminescence Properties of Ag-Doped Phosphate Glasses Containing Different Alkali Metal Cations.
- Authors
Hironori Tanaka; Yutaka Fujimoto; Masanori Koshimizu; Takayuki Yanagida; Takuma Yahaba; Keiichiro Saeki; Keisuke Asai
- Abstract
For many years, the radiophotoluminescence (RPL) of Ag-doped phosphate glass has been exploited in personal dosimetry. In this study, we investigated the optical properties of Ag-doped phosphate glasses of various compositions containing alkali metals as cations. We found that the peak wavelengths of the RPL bands depend on alkali metal species. Corresponding excitation bands also appeared in the excitation spectra after irradiation. In addition, we observed differences in the stability of the RPL fluorescent centers after heat treatment. These results indicate that RPL fluorescent center formation and initialization processes depend on the alkali metal species in the host phosphate glasses.
- Subjects
PHOTOLUMINESCENCE; CATALYTIC doping; ALKALI metal compounds; ALKALI metal ions; PHOSPHATE glass
- Publication
Sensors & Materials, 2016, Vol 28, Issue 8, p863
- ISSN
0914-4935
- Publication type
Article
- DOI
10.18494/sam.2016.1353