pp. 1539-1546
S&M1609 Research Paper of Special Issue https://doi.org/10.18494/SAM.2018.1921 Published: July 27, 2018 Dosimetric Properties of Thulium-doped Strontium Aluminoborate Glasses [PDF] Naoki Kawano, Noriaki Kawaguchi, Go Okada, Yutaka Fujimoto, and Takayuki Yanagida (Received January 16, 2018; Accepted March 9, 2018) Keywords: dosimeter, thermoluminescence, Tm, scintillator, luminescence
We investigated the photoluminescence (PL), scintillation, and dosimetric properties of strontium aluminoborate glasses with different thulium (Tm) concentrations of 0.1, 0.5, 1.0, and 5.0%. The Tm-doped glasses were synthesized by the conventional melt-quenching technique. In the PL and scintillation spectra, the Tm-doped samples showed a sharp peak at 460 nm due to the 4f–4f (1D2→3F4) transitions of Tm3+. Among the samples tested, the 0.5% Tm-doped sample exhibited the highest intensity in PL and scintillation. In thermally stimulated luminescence (TSL), the Tm-doped samples showed a broad glow peak around 100 ℃ after X-ray irradiation of 10000 mGy. The 0.5% Tm-doped sample also showed the highest TSL intensity. Furthermore, the 0.1–1.0% Tm-doped samples exhibited a linear response against X-ray doses over a range of 10−1–104 mGy.
Corresponding author: Naoki KawanoCite this article Naoki Kawano, Noriaki Kawaguchi, Go Okada, Yutaka Fujimoto, and Takayuki Yanagida, Dosimetric Properties of Thulium-doped Strontium Aluminoborate Glasses, Sens. Mater., Vol. 30, No. 7, 2018, p. 1539-1546. |