Thermoluminescence properties of Tb3+-doped CaO–Al2O3–B2O3-based glasses

H. Ono, Y. Fujimoto, T. Yahaba, T. Yanagida, M. Koshimizu, K. Asai

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)24-28
Number of pages5
JournalOptical Materials
Publication statusPublished - 2019 Jan


  • Dosimetry
  • Thermoluminescence
  • Trapping


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