TY - JOUR
T1 - Thermoluminescence properties of Tb3+-doped CaO–Al2O3–B2O3-based glasses
AU - Ono, H.
AU - Fujimoto, Y.
AU - Yahaba, T.
AU - Yanagida, T.
AU - Koshimizu, M.
AU - Asai, K.
N1 - Publisher Copyright:
© 2018
PY - 2019/1
Y1 - 2019/1
N2 - In this study, the thermoluminescence (TL) characteristics and X-ray radiation response properties of 35CaO–15Al2O3–50B2O3:xTb4O7 (x = 0.25, 0.5, 1.0, 2.0, and 4.0 mol%) glasses were evaluated. These glasses, prepared by a conventional quenching method, were transparent and non-hygroscopic. The TL spectra showed a green band emission (400–600 nm) arising from 4fn–4fn forbidden transitions of the Tb3+ ions. A TL glow peak was observed at 360 K in all the glasses at different Tb concentrations. Among them, the 1.0, 2.0, and 4.0 mol% Tb-doped glasses exhibited excellent linearity over the 1.0 mGy–10 Gy irradiation dose range. The TL peak intensity decreased to ∼60% after 1 h, ∼45% after 24 h and ∼30% after 72 h.
AB - In this study, the thermoluminescence (TL) characteristics and X-ray radiation response properties of 35CaO–15Al2O3–50B2O3:xTb4O7 (x = 0.25, 0.5, 1.0, 2.0, and 4.0 mol%) glasses were evaluated. These glasses, prepared by a conventional quenching method, were transparent and non-hygroscopic. The TL spectra showed a green band emission (400–600 nm) arising from 4fn–4fn forbidden transitions of the Tb3+ ions. A TL glow peak was observed at 360 K in all the glasses at different Tb concentrations. Among them, the 1.0, 2.0, and 4.0 mol% Tb-doped glasses exhibited excellent linearity over the 1.0 mGy–10 Gy irradiation dose range. The TL peak intensity decreased to ∼60% after 1 h, ∼45% after 24 h and ∼30% after 72 h.
KW - Dosimetry
KW - Thermoluminescence
KW - Trapping
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U2 - 10.1016/j.optmat.2018.07.004
DO - 10.1016/j.optmat.2018.07.004
M3 - Article
AN - SCOPUS:85053167387
SN - 0925-3467
VL - 87
SP - 24
EP - 28
JO - Optical Materials
JF - Optical Materials
ER -