|
NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.50 [2012] >
IJPAP Vol.50(11) [November 2012] >
| Title: | Determination of kinetic parameters of TL of Eu-doped LiNaF2 |
| Authors: | Puppalwar, S P
Dhoble, S J |
| Keywords: | LiNaF2
XRD
SEM
Solid state diffusion method
Thermoluminescence
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. |
| Page(s): | 855-858 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.50(11) [November 2012]
|
|
