TL properties of BaF2:Ce phosphor for high gamma ray dosimetry

Abstract Powder sample of Cubic phase BaF 2 :Ce phosphor was synthesized by chemical co-precipitation method and annealed at 500 °C for 2 h. The synthesized powder of BaF 2 :Ce phosphor was characterized by XRD, which shows FCC structure with 30 nm crystallite size. TEM images show a cubic structure and FTIR contains the existence of F-Ba-F, C-H, C˭C, and O-H bonds. Glow curve of the Thermoluminescence contains two major peaks, one at 175 °C and another at 275 °C. The intensity of the major dosimetric peak (175 °C) observed to be increased linearly from 1 Gy to 3 kGy for the doses of 60 Co gamma rays and then saturates. Overall, the new BaF 2 :Ce phosphor shows good material properties for the high gamma dose measurement applications.