Journals / Turkish Journal of Physics / 2001 / Cilt: 25 - Sayı: 3

Determination of the trapping parameters of glow peaks of CaF2:Dy (TLD-200) by using computer glow curve deconvolution method

Pages
249–255
DOI
—
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

The number of trapped electrons, activation energies and frequency factor for individual glow peaks are as follows: (Peak 1) $3x10^{13}$, 1.27 and $2.13x10^{17}$, (Peak 2) $6.3x10^{13}$, 1.01 and $9.2x10^{12}$, (Peak 3) $3.3x10^{14}$, 0.7 and $6.12x10^7$, (Peak 4) $2.4x10^14$, 1.14 and $3.28x10^12$, (Peak 5) $1.5x10^14$, 0.84 and $2.56x10^8$, (Peak 6) $2.4x10^{14}$, 0.98 and $1.76x10^9$.

📌 3 Key Takeaways

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Objective & Hypothesis:Computerized glow curve deconvolution method is used to determine the number of peaks, the order of kinetics b, the activation energy $E_a$,frequency factor s and number of the trapped electrons n0 associated with the glow peaks in single crystal of $CaF_2$:Dy (TLD-200).
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Key Findings & Data:Glow curve analysis indicate that the glow curve in the temperature region between room temperature and 250 $\circ$C can be best described as a superposition of six peaks.
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Conclusion & Impact:The number of trapped electrons, activation energies and frequency factor for individual glow peaks are as follows: (Peak 1) $3x10^{13}$, 1.27 and $2.13x10^{17}$, (Peak 2) $6.3x10^{13}$, 1.01 and $9.2x10^{12}$, (Peak 3) $3.3x10^{14}$, 0.7 and $6.12x10^7$, (Peak 4) $2.4x10^14$, 1.14 and $3.28x10^12$, (Peak 5) $1.5x10^14$, 0.84 and $2.56x10^8$, (Peak 6) $2.4x10^{14}$, 0.98 and $1.76x10^9$.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Özet

Computerized glow curve deconvolution method is used to determine the number of peaks, the order of kinetics b, the activation energy $E_a$,frequency factor s and number of the trapped electrons n0 associated with the glow peaks in single crystal of $CaF_2$:Dy (TLD-200). Glow curve analysis indicate that the glow curve in the temperature region between room temperature and 250 $\circ$C can be best described as a superposition of six peaks. First five peaks are described by first-order kinetics and sixth peak general-order kinetic. The number of trapped electrons, activation energies and frequency factor for individual glow peaks are as follows: (Peak 1) $3x10^{13}$, 1.27 and $2.13x10^{17}$, (Peak 2) $6.3x10^{13}$, 1.01 and $9.2x10^{12}$, (Peak 3) $3.3x10^{14}$, 0.7 and $6.12x10^7$, (Peak 4) $2.4x10^14$, 1.14 and $3.28x10^12$, (Peak 5) $1.5x10^14$, 0.84 and $2.56x10^8$, (Peak 6) $2.4x10^{14}$, 0.98 and $1.76x10^9$.

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Cite This Article

YAZICI, A. N., HACIİBRAHİMOĞLU, M. Y. (2001). Determination of the trapping parameters of glow peaks of CaF2:Dy (TLD-200) by using computer glow curve deconvolution method. Turkish Journal of Physics, Cilt: 25 - Sayı: 3, 249–255. https://ajindex.com/articles/378648

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