Thermoluminescence kinetic parameters of different amount La-doped ZnB2O4

Küçük, N.; Gozel, Aziz Halit; Yüksel, Mehmet; Doǧan, Tamer; Topaksu, M.

doi:10.1016/j.apradiso.2015.07.007

Cited by 52 publications

(27 citation statements)

References 37 publications

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“…Therefore, the kinetic parameters of ZnB 2 O 4 :0.03Tb 3+ were determined using the glow curve deconvolution, the initial rise, the curve fitting, and the peak shape methods. The glow curve deconvolution method has great advantages over experimental methods [24]. It can be used to simultaneously determine the kinetic parameters of TL peaks without additional thermal treatments and experimental repetitions.…”

mentioning

confidence: 99%

Thermoluminescence Characteristics of Terbium Doped Zinc Borates

Küçük

2019

Crystals

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In this work, structural and thermoluminescence (TL) characteristics for ZnB 2 O 4 :xTb 3+ (x = 0.01, 0.02, 0.03, 0.04, 0.05, and 0.10 mole) phosphors were investigated. The phosphors were prepared via synthesis of nitric acid. The X-ray diffraction (XRD) studies show that the synthesized samples can be indexed to nearly single-phase cubic ZnB 2 O 4 . The TL characteristics following 90 Sr beta irradiation (40 mCi) were studied. TL intensity is found to depend on Tb concentration. The optimal concentration of the doped Tb 3+ is 0.03 mol in TL measurements. TL dose responses of the phosphors to beta doses of 0.143, 0.715, 1.43, 15, 30 and 60 Gy showed fairly linear behavior. The minimum detectable dose (MDD) value for ZnB 2 O 4 :0.04Tb 3+ was found to be 87 mGy. The kinetic parameters of the ZnB 2 O 4 :0.03Tb 3+ sample were estimated by the glow curve deconvolution, the initial rise, the curve fitting, and the peak shape methods. The results indicate that these phosphors are thought to be promising candidates as TL materials. The results provide valuable knowledge of the characteristics of Tb-doped ZnB 2 O 4 for use in dosimetry research.

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confidence: 99%

Thermoluminescence Characteristics of Terbium Doped Zinc Borates

Küçük

2019

Crystals

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“…Deconvolution showed that four traps were formed; out of these four peaks, three peaks related to the powered turtle shell and the fourth to plate temperature. TL parameters such as order of kinetics, activation energy and frequency factor of all the peaks were calculated using three different techniques: Chen's peak shape method, the initial rise method, and Ilich's method, all documented previously by other researchers …”

Section: Resultsmentioning

confidence: 99%

“…From this TL glow peak, information on trapping parameters such as trap depth or activation energy of the charge trap, and the trap attempt‐to‐escape frequency, known as the frequency factor, can be gained. For use in dosimetry, the TL peak should be generated at a high temperature, around 473 K. Dosimetric properties of TL materials mainly rely on trapping parameters such as activation energy (E), frequency factor (s), order of kinetics (b) and peak temperature (T m ) of the glow curve . Many techniques such as Chen's peak shape method, the initial rise method, the whole glow curve method, or the heating rate and mathematical expressions have been used to analyze trapping parameters from TL glow curves …”

Section: Introductionmentioning

confidence: 99%

Study of thermoluminescence in turtle shell fossils using radiation dosimetry

Ovhal

Samant

Dhoble³

et al. 2019

Luminescence

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The present study describes for the first time thermoluminescence (TL) characterization of turtle shell. A fossil shell was collected from the Dongargaon area in the Chandrapur district of Maharashtra, India. TL was recorded and a comparative study of TL for the above material was performed to understand the special TL characteristics of the shell. The shell was irradiated with 60 Co γ-radiation to study its TL properties. The sample displayed two good TL peaks at 135°C and 255°C. A linear dose-response curve for the irradiated sample was produced for the dose range 0.79-28.5 kGy; this sample of turtle shell (fossil) may be useful as a high dose dosimetry phosphor in this range. This geological sample was further characterized using X-ray diffraction to confirm its phase structure and by scanning electron microscopy , Fourier transform infrared and wavelength dispersive X-ray fluorescence spectroscopy to determine morphology, vibration, and elemental composition as ppm or percentage of the sample, respectively. Kinetic parameters of the TL glow peak were calculated using three different methods.

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“…After knowing the number of overlapped peaks and the kinetic order b, analyses of the complex glow curves by CGCD method can be done . This composite glow curve is analyzed into individual components by using the following general order kinetics equation proposed by Kitis et al

\begin{matrix} I (T) = \\ n_{o} s exp (- E false/ normalk T) {(][\frac{false(b - 1 false) s k T^{2}}{β E} \times exp (- E false/ normalk T) false(1 - normalΔ false) + 1)}^{- \frac{b}{b - 1}} \end{matrix}

…”

Section: Resultsmentioning

confidence: 99%

“…After knowing the number of overlapped peaks and the kinetic order b, analyses of the complex glow curves by CGCD method can be done. 17,18 curve is analyzed into individual components by using the following general order kinetics equation proposed by Kitis et al 19 IðTÞ ¼…”

Section: Glow Curve De-convolution (Gcdc) Methodsmentioning

confidence: 99%

Evaluation of the thermoluminescence kinetic parameters of zinc‐borosilicate glass after gamma‐irradiation

Soliman

Salama

Youssef

et al. 2017

Int J of Appl Glass Sci

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Up until this moment, there was no detailed study concerning the kinetic parameters of zinc-doped borosilicate glass thermoluminescent (TL) material. A significant TL peak was observed upon gamma irradiating the samples, at around 185°C. Evaluating activation energy (E), frequency factor (s), and order of kinetics (b) were conventionally obtained by peak shape (PS) method, repeated initial rise (RIR), and variable heating rate (VHR) methods. The obtained results indicated that the zinc-doped borosilicate glass glow curve after gamma irradiation is legitimately a superposition of seven interfered glow peaks. Therefore, we cannot use computerized glow curve deconvolution (CGCD) method alone in determining the kinetic parameters in this case. Additive dose (AD), repeated initial raise (RIR), and variable heating rate (VHR) methods together with computerized deconvolution (CGCD) method by using the TolAnal software have been applied to determine the kinetic parameters of zinc-borosilicate glass due to the existence of several nearby overlapped peaks. RIR method gives the value of AE 2.3% average variation, for the activation energies, compared with those obtained by GCDC. The obtained results clearly show the consequences reliability. K E Y W O R D Sborosilicate, ionizing radiation, kinetic parameters, thermoluminescence, zinc

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Thermoluminescence kinetic parameters of different amount La-doped ZnB2O4

Cited by 52 publications

References 37 publications

Thermoluminescence Characteristics of Terbium Doped Zinc Borates

Thermoluminescence Characteristics of Terbium Doped Zinc Borates

Study of thermoluminescence in turtle shell fossils using radiation dosimetry

Evaluation of the thermoluminescence kinetic parameters of zinc‐borosilicate glass after gamma‐irradiation

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