Luminescence properties of Pr3+ doped high density germanate scintillating glasses for fast-event X-ray detection

Abstract

Pr 3+ doped high density germanate glasses were prepared by the melt-quenching method. The physical and luminescent properties were investigated. The glass containing BaF 2 represented maximum phonon energy of 810 cm −1 , and the glass density was greater than 6 g/cm 3 . The glass exhibited good radiation resistance under 2 h of X-ray irradiation. Intense blue, green emissions and weak red emissions were observed when the glass was excited by X-ray, and the blue fluorescence lifetimes were in the range of 9.15–12.59 μs The results show that Pr 3+ doped germanate glass could be a potential scintillating material in the field of X-ray detection for fast events.