Yayın: Thermoluminescence kinetic parameters of different amount La-doped ZnB2O4
Tarih
Kurum Yazarları
Küçük, Nil
Yazarlar
Gözel, Aziz Halit
Yüksel, Mehmet
Doğan, Tamer
Topaksu, Mustafa
Danışman
Dil
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Yayıncı:
Pergamon-Elsevier
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Özet
The kinetic parameters of 1%, 2%, 3% and 4% La-doped ZnB2O4 phosphors (i.e. ZnB2O4:0.01La, ZnB2O4:0.02La, ZnB2O4:0.03La and ZnB2O4:0.04La) synthesized by nitric acid method have been calculated. Thermoluminescence (TL) glow curves of ZnB2O4:La phosphors after beta-irradiation showed a very well defined main peak having the maximum temperature at around 200 degrees C and a shoulder peak at around 315 degrees C with a constant heating rate of 5 degrees C/s. The kinetic parameters of ZnB2O4:La phosphors TL glow peaks (i.e. order of kinetics (b), activation energies (E-a) and frequency factors (s)) have been determined and evaluated by Computerized Glow Curve Deconvolution (CGCD), and Peak Shape (PS) methods using the glow curve data. From the results, it can conclude that the values of E-a obtained with these methods for ZnB2O4:La phosphors are consistent with each other, but the s values differ considerably.
Açıklama
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Anahtar Kelimeler:
Konusu
CGCD, Kinetic parameters, Thermoluminescence, ZnB2O4: La phosphors, Goodness-of-fit, Glow peaks, Activation-energies, Ce, Photoluminescence, Chemistry, Nuclear science & technology, Radiology, nuclear medicine & medical imaging, Activation energy, Kinetic parameters, Kinetics, Light emission, Phosphors, Beta irradiations, CGCD, Frequency factors, Glow curve deconvolution, Maximum temperature, Order of kinetics, Peak shapes, Shoulder peaks, Thermoluminescence
Alıntı
Küçük, N. vd. (2015). "Thermoluminescence kinetic parameters of different amount La-doped ZnB2O4". Applied Radiation and Isotopes, 104, 186-191.