A new method for the numerical analysis of thermoluminescence glow curve

Chung, K.S.; Choe, H.S.; Lee, J.I.; Kim, J.L.

doi:10.1016/j.radmeas.2007.02.028

Cited by 43 publications

(10 citation statements)

References 9 publications

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“…The software works for the deconvolution of the TL glow curves having mixed order, first‐order, second‐order and general‐order kinetics. It has been shown that this method/software is efficient and fast in generating TL glow peaks and can be adopted for numerical curve fitting .…”

Section: Resultssupporting

confidence: 88%

“…Therefore, the CGCD method was used to deconvolute and calculate the kinetic parameters. Here, the glow curves of maximum ion fluence irradiated phosphors were deconvoluted by CGCD method using the TLanal computer program . This computer program is based on the Halperin and Braner equations which describe the flow of the charge between the various energy levels during trap emptying by thermal heating.…”

Section: Resultsmentioning

confidence: 99%

“…Chung et al . derived the equation below for TL intensity by applying some physical assumptions to the Halperin and Braner equations. Assuming the free carrier concentration in the conduction band ( n c ) to be very small compared with the trapped carrier concentration ( n ) and the rate of change of n c to be much smaller than the rate of change of n , the TL intensity can be expressed as:

I (t) = - α \frac{italicdn}{italicdt} = α \frac{n^{2} p}{n + R (N - n)}

where R is the ratio of the retrap and recombination coefficient, N is the concentration of the available electron traps of depth E below the conduction band and α is a scaling factor of the detecting system.…”

Section: Resultsmentioning

confidence: 99%

“…A Stopping range of ions in Matter (SRIM) calculation was performed to correlate the TL properties of Y 2 O 3 :Eu 3+ with defect formation under SHI irradiation. The TLanal computer program was used to deconvolute the composite TL glow curves. The trapping parameters of deconvoluted peaks obtained with this program were compared with the glow curve shape methods.…”

Section: Introductionmentioning

confidence: 99%

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Swift heavy ion induced structural and luminescence characterization of Y₂O₃:Eu³⁺ phosphor: a comparative study

2013

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We report a comparative study on structural and thermoluminescence modifications of Y2O3:Eu(3+) phosphor induced by 150 MeV Ni(7+), 120 MeV Ag(9+) and 110 MeV Au(8+) swift heavy ions (SHI) in the fluence range 1 × 10(11) to 1 × 10(13) ions/cm(2). X-Ray diffraction and transition electron microscopy studies confirm the loss of crystallinity of the phosphors after ion irradiation, which is greater in the case of Au ion irradiation. Structural refinement using the Rietveld method yields the various structural parameters of ion-irradiated phosphors. Thermoluminescence glow curves of ion-irradiated phosphors show a small shift in the position of the peaks, along with an increase in intensity with ion fluence. Stopping range of ions in Matter (SRIM) calculations were performed to correlate the change in thermoluminescence properties of various ion-irradiated phosphors. It shows that the defects created by 110 MeV Au(8+) ions are greater in number. Trapping parameters of ion-irradiated phosphors were calculated from thermoluminescence data using various glow curve analysis methods.

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Section: Resultssupporting

confidence: 88%

Section: Resultsmentioning

confidence: 99%

I (t) = - α \frac{italicdn}{italicdt} = α \frac{n^{2} p}{n + R (N - n)}

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Swift heavy ion induced structural and luminescence characterization of Y₂O₃:Eu³⁺ phosphor: a comparative study

2013

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“…Here,

p = s e^{prefix- E true/ k T}

is defined as the probability per unit time of the release of an electron from the trap where s is the frequency factor for the escape from the traps to the conduction band. The method described here, a general approximation, generates TL glow peaks and interpolates the relevant TL parameters from the glow data . The accuracy of decomposing was tested by calculating the value of figure of merit (FOM) for all of the TL glow peaks.…”

Section: Resultsmentioning

confidence: 99%

Thermoluminescence properties of annealed natural quartz after beta irradiation

et al. 2016

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Here we investigated the effects of annealing, heating rate and fading (after annealing at 800 °C) on the thermoluminescence (TL) glow curves of natural quartz (NQ). All of the samples were annealed at different temperatures between 100 °C and 800 °C and then irradiated with a beta dose of about 34 Gray (Gy), in order to determine the effects of annealing treatments on TL peaks of natural quartz. TL glow curves of the samples were recorded. It was observed that the intensities of TL peaks were strongly sensitive to annealing temperatures at 800 °C. The heating rate and fading effect of TL peaks of natural quartz were examined for the annealed samples at 800 °C for 30 min. It was observed that the intensities of the TL peaks were differently affected from heating rate and fading. Additionally, TL kinetic parameters (activation energy, frequency factor and order of kinetics) of all peaks were determined for annealed samples using a computerized glow curve deconvolution (CGCD) method and Mathematica software. Copyright © 2016 John Wiley & Sons, Ltd.

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Thermally and Optically Stimulated Luminescence

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A new method for the numerical analysis of thermoluminescence glow curve

Cited by 43 publications

References 9 publications

Swift heavy ion induced structural and luminescence characterization of Y₂O₃:Eu³⁺ phosphor: a comparative study

Swift heavy ion induced structural and luminescence characterization of Y₂O₃:Eu³⁺ phosphor: a comparative study

Thermoluminescence properties of annealed natural quartz after beta irradiation

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A new method for the numerical analysis of thermoluminescence glow curve

Cited by 43 publications

References 9 publications

Swift heavy ion induced structural and luminescence characterization of Y2O3:Eu3+ phosphor: a comparative study

Swift heavy ion induced structural and luminescence characterization of Y2O3:Eu3+ phosphor: a comparative study

Thermoluminescence properties of annealed natural quartz after beta irradiation

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Product

Resources

About

Swift heavy ion induced structural and luminescence characterization of Y₂O₃:Eu³⁺ phosphor: a comparative study

Swift heavy ion induced structural and luminescence characterization of Y₂O₃:Eu³⁺ phosphor: a comparative study