Resolving the limitation of the peak fitting and peak shape methods in the determination of the activation energy of thermoluminescence glow peaks

Sadek, A.M.; Eissa, H.M.; Basha, A.M.; Kitis, G.

doi:10.1016/j.jlumin.2013.10.031

Cited by 52 publications

(25 citation statements)

References 29 publications

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“…The accuracy of these equations in calculating the activation energy was verified for the glow-peaks simulated by different TL models [24,26,27]. The main conclusion was that these equations are superior to the general-order kinetics (GOK) and the mixed-order kinetics (MOK) equations in the determination of the activation energy.…”

Section: Methods Of Analysismentioning

confidence: 93%

Similarities and differences between two different types of the thermoluminescence dosimeters belonging to the LiF family

Sadek

Khamis

Polymeris

et al. 2016

Phys. Status Solidi C

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The kinetic parameters of the glow‐peaks of Harshaw – LiF:Mg, Ti (TLD) and Poland – LiF:Mg,Ti (MTS) dosimeters were investigated at different dose levels using the computerized glow‐curve deconvolution (CGCD) algorithm. The results showed that the glow‐curve structure and the kinetic parameters of the MTS – 6 and the TLD dosimeter are identical. In addition, the glow‐curve structure and the kinetic parameters of the MTS – N and MTS – 7 dosimeters. However, unusual low activation energy (∼1.67 eV) and frequency factor (∼1015 s–1) values were detected for peak 5 of MTS – N, and MTS – 7 at the 50 Gy dose‐level. Moreover, unlike the activation energy and the frequency factor of peak 5 of the TLD dosimeters, the activation energy and the frequency factor of peak 5 of MTS – N and MTS – 7 are substantially dependent on the absorbed dose level. The results also showed that peak 2 of the same dosimeters has also unusual low activation energy and frequency factor values. However, these values showed high stability over the different dose levels. The explanations of these unusual behaviors of peak 5 were discussed and a correlation between peak 2 and peak 5 was pointed out.

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Section: Methods Of Analysismentioning

confidence: 93%

Similarities and differences between two different types of the thermoluminescence dosimeters belonging to the LiF family

Sadek

Khamis

Polymeris

et al. 2016

Phys. Status Solidi C

Self Cite

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“…It means that these glow-peaks do not follow the firstorder kinetics model, but they are still characterized by that dominates that the recombination probability is greater than the re-trapping one. Since, it was observed by Sadek et al (2014A) that the values of for the glow-peaks characterized by are found to be in the range of ~0.50 to ~0.55 which are corresponding to the kinetics order of ~1.7 to 2.2.…”

Section: The Values Of the Physical Parameter Of The Deconvoluted Peamentioning

confidence: 96%

“…The accuracy of Eqs.7 and 8 using the approximation terms given by Eqs.15 and 16 was tested over the range of from 10 -3 to 10 3 using the same procedure described by Sadek et al (2014A). The results showed that the error in obtaining the activation energy using these expressions did not exceed 5 % over the full range of which refers to an acceptable accuracy of these expressions.…”

Section: |mentioning

confidence: 99%

“…In such case, more tests are required to decide which equation should be used in the analysis process. Sadek et al (2014A) observed that changing the heating rate affects the integral symmetry factor of the glow-peak only if . In other words, if the integral symmetry factor changes when the heating rate changes, Eq.8 should be used in the fitting process.…”

Section: The Deconvolution Of Lib 4 O 7 :Cu In Ag Glow-curvementioning

confidence: 99%

“…Kitis and Vlachos (2013) deduced general semi-analytical expressions based on the OTOR to describe a single thermoluminescence (TL) glow-peak. The advantages of these expressions that they can accurately describe the TL glowpeaks even in the cases in which the other TL expressions were failed (Sadek et al, 2014A). In addition, they are based on a physical model.…”

Section: Introductionmentioning

confidence: 99%

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The deconvolution of thermoluminescence glow-curves using general expressions derived from the one trap-one recombination (OTOR) level model

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Basha

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Applied Radiation and Isotopes

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Zinc silicate phosphor: Insights of X‐ray induced and temperature enabled luminescence

et al. 2023

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The present investigation deals with the effect of calcination temperature on the structural and thermoluminescent (TL) properties of Zn2SiO4 materials. For this study, Zn2SiO4 was prepared via a simple hydrothermal route and calcinated at temperatures from 700°C to 1100°C in an air atmosphere. TL data of all Zn2SiO4 samples showed two peaks at around 240°C and 330°C due to the formation of the luminescence centre during X‐ray irradiation. More interestingly, the Zn2SiO4 sample calcinated at 900°C exhibited a shift in the TL peak (282°C and 354°C) with an optimal TL intensity attributed to its good crystallinity with a well‐defined hexagonal plate‐like morphology. X‐ray‐irradiated Zn2SiO4 samples calcinated at 900°C exhibited a high‐temperature TL glow curve peak, suggesting that the present material could be used for high‐temperature dosimetry applications.

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Resolving the limitation of the peak fitting and peak shape methods in the determination of the activation energy of thermoluminescence glow peaks

Cited by 52 publications

References 29 publications

Similarities and differences between two different types of the thermoluminescence dosimeters belonging to the LiF family

Similarities and differences between two different types of the thermoluminescence dosimeters belonging to the LiF family

The deconvolution of thermoluminescence glow-curves using general expressions derived from the one trap-one recombination (OTOR) level model

Zinc silicate phosphor: Insights of X‐ray induced and temperature enabled luminescence

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