Study of thermoluminescence, photoluminescence and dosimetry for the YAGG:Ce (Y2.96Al3.4Ga1.6O12:0.04Ce) phosphor

Zhengye Xiong; Xiaochun Wang; Yuanting Liang; Hao Liu; Zhuo Xu; Jingyuan Guo

doi:10.1016/j.apradiso.2022.110615

Study of thermoluminescence, photoluminescence and dosimetry for the YAGG:Ce (Y_2.96Al_3.4Ga_1.6O₁₂:0.04Ce) phosphor

Appl Radiat Isot. 2023 Mar:193:110615. doi: 10.1016/j.apradiso.2022.110615. Epub 2022 Dec 15.

Authors

Zhengye Xiong¹, Xiaochun Wang¹, Yuanting Liang¹, Hao Liu¹, Zhuo Xu¹, Jingyuan Guo²

Affiliations

¹ School of Electronic and Information Engineering, Guangdong Ocean University, Zhanjiang, 524088, China.
² School of Electronic and Information Engineering, Guangdong Ocean University, Zhanjiang, 524088, China. Electronic address: gjy3344@126.com.

PMID: 36566664
DOI: 10.1016/j.apradiso.2022.110615

Abstract

The comprehensive effect of ionizing radiation should be considered in the use and or analysis of certain electronic equipment. Fluorescent powders are widely used in electronic equipment, so they are attempted to be used as thermoluminescence (TL) dosimeter directly. Green YAGG:Ce phosphors were prepared by a high-temperature solid-state reaction method. The TL glow curves, TL dose response, TL three-dimensional (3D) spectra (80 K-800 K) and photoluminescence spectra for the phosphors were measured. The measurement results show that the luminescence peak temperature for the sample occurs at approximately 458 K and the luminescence peak temperatures in the TL 3D spectra are located at 130 K, 240 K and 458 K; there are four kinds of activation energies of traps in the material; the TL response of each component for the YAGG:Ce phosphor shows good linearity and the detection sensitivity of the phosphor is estimated to be less than 2 mGy. TL 3D spectra and PL spectra show that the luminescence from the phosphors arises from the ²D_3/2 → ²F_5/2,7/2 transition of Ce ions, and the TL 3D spectra at 130 K, 240 K and 458 K are almost the same, which proves that the temperature can hardly change the relative probability of the ²D_3/2 → ²F_5/2,7/2 transitions. The results show that YAGG:Ce could be used as dosimeter material.

Keywords: Dosimeter; Photoluminescence (PL); TL 3D spectra; Thermoluminescence (TL).