Consequences of doping Er3+ and Yb3+ ions on the thermoluminescence dosimetry performance of the BaO-ZnO-LiF-B2O3-Sm2O3 glass system

Prabhu, Nimitha S and Sharmila, K and Karunakara, N and Sayyed, M I and Almuqrin, Aljawhara H and Kamath, Sudha D (2022) Consequences of doping Er3+ and Yb3+ ions on the thermoluminescence dosimetry performance of the BaO-ZnO-LiF-B2O3-Sm2O3 glass system. Journal of Non-Crystalline Solids, 582. ISSN 0022-3093

[img] PDF
1504.pdf - Published Version
Restricted to Registered users only

Download (6MB) | Request a copy
Official URL: http://www.elsevier.com/locate/jnoncrysol

Abstract

The consequences of doping Er3+ and Yb3+ ions on the thermoluminescence (TL) dosimetry performance of the BaO-ZnO-LiF-B2O3-Sm2O3 glass system were examined for the first time. The incorporation of Er3+ and Yb3+ ions were found to be highly detrimental to the TL intensity, sensitivity, and trap density of the Sm3+ doped glass. Although Sm3+ ions enhanced the integrated TL intensity of the host glass by two thousand times, Sm3+-Er3+ and Sm3+-Yb3+ combinations functioned like activator-quencher systems. Contrary, the problem of anomalous loss of 50% signal after a storage week of the Sm3+ doped glass was effectively countered by doping Er3+ (2% loss) and Yb3+ (8% loss) ions. From the trap parameters, the elimination of some shallow traps and deepening of some existing ones was reasoned for minimizing fading. Even if the Er3+ and Yb3+ ions adversely affected the TL intensity of the Sm3+ glass, they greatly improved the stability. The observations indicate that the TL dosimetry performance of a glass system can be suitably tuned by the doping/co-doping of rare-earth ions.

Item Type: Article
Uncontrolled Keywords: Co-doping Defects Dosimeter Glass Thermoluminescence
Subjects: Engineering > MIT Manipal > Physics
Depositing User: MIT Library
Date Deposited: 12 Jul 2022 04:39
Last Modified: 12 Jul 2022 04:39
URI: http://eprints.manipal.edu/id/eprint/158907

Actions (login required)

View Item View Item