[18a-D419-1~11] 2.5 Radiation-induced phosphors

[18a-D419-10] Scintillation Properties of Ca(Nb, Ta)₂O₆ Single Crystals

〇Taisei Hayashi¹, Kensei Ichiba¹, Daisuke Nakauchi¹, Kenichi Watanabe², Takumi Kato¹, Noriaki Kawaguchi¹, Takayuki Yanagida¹ (1.NAIST, 2.Kyushu Univ.)

Keywords:scintillator, single crystal

In this study, Ca(Nb,Ta)₂O₆ single crystals were prepared by adding Ta, an element allied to Nb, to CaNb₂O₆, which has been reported to exhibit strong blue luminescence, and their photoluminescence and scintillation properties were evaluated. In the scintillation spectra, an emission band originating from the charge transfer transition from O^2- to Nb⁵⁺ ions of NbO₆ was observed around 400-600 nm.