Thermoluminescence of Cs$_{2}$LiYCl$_{6}$, Cs$_{2}$LiYCl$_{6}$:Ce$^{3+}$ and Cs$_{2}$LiYCl$_{6}$:Pr$^{3+}$ Crystals

In this paper we report on the thermoluminescence of Cs ₂ LiYCI ₆ , Cs ₂ LiYCl ₆ :Ce ³⁺ and Cs ₂ LiYCl ₆ :Pr ³⁺ crystals. Low-temperature glow curves and isothermal decay spectra are presented. All three crystals exhibit prominent glow peaks below 300 K. The Cs ₂ LiYCl ₆ sample shows a major peak at 58 K in addition to a broad band between 75 K and 150 K. The glow curve of Cs ₂ LiYCl ₆ :Pr ³⁺ is similar to that of Cs ₂ LiYCl ₆ but shows additional peaks at 222 K and 277 K. The glow curve of Cs ₂ LiYCl ₆ :Ce ³⁺ is dominated by a major glow peak at 214 K with minor peaks at 50 K and 88 K. Lifetimes of traps derived from isothermal decay spectra measured at the temperature maximum of selected glow peaks are of the order of tens of seconds.