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Title: Determination of kinetic parameters of TL of Eu-doped LiNaF2
Authors: Puppalwar, S P
Dhoble, S J
Keywords: LiNaF2
Solid state diffusion method
Trap parameters
Issue Date: Nov-2012
Publisher: NISCAIR-CSIR, India
Abstract: In the present paper, thermoluminescence (TL) study of Eu doped LiNaF2 phosphor is reported. A polycrystalline sample of LiNaF2:Eu was prepared by solid state diffusion method. Formation of compound was confirmed by taking the X-ray diffraction (XRD) pattern. TL glow curves of -irradiated LiNaF2:Eu sample show one glow peak at temperature 168°C. The trapping parameters associated with the prominent glow peak of LiNaF2:Eu are 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 -ray of 60Co dose to the sample. A linear TL response is observed in LiNaF2:Eu in a long span of exposures and it may be used as a TLD material.
Description: 855-858
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.50(11) [November 2012]

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