Evaluation of optically stimulated luminescence properties of Tm-doped NaMgF3 single crystals

Abstract

Undoped and Tm-doped NaMgF3 single crystals were synthesized and investigated in terms of their scintillation and optically stimulated luminescence (OSL) properties. The synthesized samples were confirmed by X-ray diffraction to be a single-phase NaMgF3. The Tm-doped sample showed an X-ray-induced scintillation spectrum characterized by sharp emission lines owing to the 4f–4f transitions of Tm3+. The OSL spectrum of the Tm-doped sample also showed emission at around 360 nm, which was ascribed to the 4f–4f transitions of Tm3+. The OSL dose response function of the Tm-doped sample showed a linear response in the dose range of 1–10000 mGy.