Preliminary analyses of radiophotoluminescence centers in a recently developed Ag-doped alkali-phosphate glass (SAPANS)

被引：1

作者：

Yasuda, Hiroshi ^{[1
]}

Kawamoto, Hiroki ^{[2
]}

Asai, Keisuke ^{[2
]}

Koguchi, Yasuhiro ^{[3
]}

机构：

[1] Hiroshima Univ, Res Inst Radiat Biol & Med RIRBM, Kasumi 1-2-3,Minami Ku, Hiroshima 7348551, Japan

[2] Tohoku Univ, Grad Sch Engn, Dept Appl Chem, Sendai 9808579, Japan

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

来源：

RADIATION MEASUREMENTS | 2024年 / 174卷

关键词：

Radiophotoluminescence; ESR; EPR; Phosphate glass; Silicate; SAPANS; ELECTRON-SPIN-RESONANCE; DEFECT CENTERS; SILVER;

D O I：

10.1016/j.radmeas.2024.107134

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 mechanism behind radiophotoluminescence (RPL) emission in Ag-doped alkali -phosphate glass remains unclear. To contribute to resolving this issue, the authors measured and analyzed the temporal change of electron spin/paramagnetic resonance (ESR) spectrum of a recently developed, weather -resistant RPL glass, named "SAPANS," after irradiation with X-rays. As a result, a continuous gradual increase in Ag 2 + -derived signals was observed even at four weeks post -irradiation, which corresponded well with the time build-up pattern of the RPL of SAPANS. In contrast, the signals derived from phosphorous -oxygen -hole centers (POHC) rapidly decreased over a few days. The peaks of Ag 0 and Ag 2 + were not successfully separated from the ESR spectra because of the possible overlap of unidentified peaks, which implies a complex mechanism of RPL-center formation in Ag-doped alkali -phosphate glass that requires further investigation.

引用

页数：6

共 37 条

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