Abstract
We synthesized the Ti-doped MgGa2O4 single crystals as a novel radiation detection material. XRD patterns indicated the synthesized crystals were single phase of MgGa2O4. Diffuse transmission spectra revealed that Ti was doped into octahedral Ga3+ site as Ti4+ and tetrahedral Mg2+ site as Ti3+. The 0.1% Ti-doped crystal showed the highest photoluminescence quantum yield among the crystals. The 0.1% Ti-doped crystal also performed the best in view point of scintillation light yield and lowest measurable dose in thermally stimulated luminescence (TSL). The scintillation light yield and lowest measurable dose in TSL of the 0.1% Ti-doped crystal were 5208 ph/5.5 MeV-α and 0.1 mGy, respectively.
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