Evaluation of Optically Stimulated Luminescence Properties of Tm-doped NaMgF3 Single Crystal
Yuma Takebuchi, Hiroyuki Fukushima, Takumi Kato, Daisuke Nakauchi, Noriaki Kawaguchi, Takayuki Yanagida
Abstract
Undoped and Tm-doped NaMgF 3 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 NaMgF 3 . The Tm-doped sample showed an X-ray-induced scintillation spectrum characterized by sharp emission lines owing to the 4f-4f transitions of Tm 3+ . The OSL spectrum of the Tm-doped sample also showed emission at around 360 nm, which was ascribed to the 4f-4f transitions of Tm 3+ . The OSL dose response function of the Tm-doped sample showed a linear response in the dose range of 1-10000 mGy.