<span style="font-size:10.0pt;font-family: "Times New Roman";mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Mangal;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language: HI" lang="EN-US">Determination of kinetic parameters of TL of Eu-doped LiNaF₂</span>

Abstract

In the present paper, thermoluminescence (TL) study of Eu doped LiNaF₂ phosphor is reported. A polycrystalline sample of LiNaF₂:Euwas prepared by solid state diffusion method. Formation of compound was confirmed by taking the X-ray diffraction (XRD) pattern. TL glow curves of <img src='/image/spc_char/gamma2.gif' border=0>-irradiated LiNaF₂:Eusample show one glow peak at temperature 168°C. The trapping parameters associated with the prominent glow peak of LiNaF₂:Euare calculated by using glow curve shape (Chen’s) method. The release of holes/electrons from defect centers at the characteristic trap site initiates the luminescence process in this material. The intensity of the TL glow peaks increases with increase of the <img src='/image/spc_char/gamma2.gif' border=0>-ray of ⁶⁰Co dose to the sample. A linear TL response is observed in LiNaF₂:Euin a long span of exposures and it may be used as a TLD material.