What question did this study set out to answer?

To develop and evaluate a new peak-shape method for calculating activation energies and frequency factors from thermoluminescence and thermally stimulated current peaks across various kinetics orders.

February 1, 1969Journal of Applied Physics

On the Calculation of Activation Energies and Frequency Factors from Glow Curves

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Authors

RCReuven ChenAcademic College at Wingate

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Implication

Computational modeling demonstrates peak-shape methods to calculate activation energies and frequency factors from glow curves, highlighting improved accuracy across kinetics orders.

Key Points

To develop and evaluate a new peak-shape method for calculating activation energies and frequency factors from thermoluminescence and thermally stimulated current peaks across various kinetics orders.
Simulated and examined new and existing analytical methods across a broad spectrum of activation energies and frequency factors using computer-based calculations.
Combined theoretical derivations with empirical computational corrections using peak maximum temperature (Tm) and half-intensity width (ω = T2 − T1).
Derived the first-order activation energy equation E = 2kTm(1.26 Tm/ω − 1) and its corresponding frequency factor formula s = [2β(1.26 Tm/ω − 1)/(e^2 Tm)] exp(2.52 Tm/ω).
Generalized analytical formulations to accommodate power-law temperature-dependent pre-exponential factors, second-order kinetics, and criteria for distinguishing peak order.

Cite This Study

Reuven Chen (1969) studied this question.

synapsesocial.com/papers/6a6f0656ac440176ef27c772 https://doi.org/10.1063/1.1657437

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Implication

Computational modeling demonstrates peak-shape methods to calculate activation energies and frequency factors from glow curves, highlighting improved accuracy across kinetics orders.

On the Calculation of Activation Energies and Frequency Factors from Glow Curves

Discussion

Member takes

Implication

Key Points

Cite This Study

On the Calculation of Activation Energies and Frequency Factors from Glow Curves

Discussion

Member takes

Implication

Key Points

Cite This Study

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