Measurement of dose distribution from a crookes tube using thermoluminescent dosimeter

Khiem, Do Duy; Matsuura, Hiroto; Akiyoshi, Masafumi

doi:10.1016/j.radmeas.2020.106312

Cited by 4 publications

(1 citation statement)

References 3 publications

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“…Thermoluminescence (TL) has long been a phenomenon that draws the attention of researchers in the fields of radiation dosimetry, dating, and defect studies. [1][2][3] In solid-state physics, estimation of trap depth is crucial for basic understanding of a material and its application to various electronic and luminescence devices and TL study has been a very useful tool for this purpose. When a TL material is exposed to high-energy radiation (like X-ray, γ-ray, etc.…”

Section: Introductionmentioning

confidence: 99%

Reappraisal of Peak Shape Method Based on Average Geometrical Symmetry Factor and Its Application to Thermoluminescence Glow Curves

Kundu¹,

Chakrabarty²,

Bhattacharyya³

et al. 2021

Physica Status Solidi (b)

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A new set of peak shape formulas at different fractional intensities is proposed to extract the activation energy from a thermoluminescence (TL) glow curve. The peak shape coefficients are formulated on the basis of the average geometrical symmetry factor which is estimated considering its dependence on the relevant TL parameters. An empirical dependence of the geometrical symmetry factor on order of kinetics and other parameters is also reported. The present method is used on TL peaks generated in general order kinetics (GOK) approximation and in one trap one recombination center (OTOR) model using a wide range of TL parameters. During the course of TL peak simulation, an alternative analytical approach to evaluate the “temperature integral” is developed. The present method seems to be useful to evaluate the activation energy for all peaks except for the heavy retrapping cases when the initial trap saturation is considerably high. A probable reason behind this limitation is also explored by examining the correspondence between the temperature average of order of kinetics and the retrapping‐to‐recombination probability. Finally, the new peak shape formulas are tried on isolated single peaks deconvoluted from composite experimental TL curves reported in the literature and the results are quite satisfactory.

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Section: Introductionmentioning

confidence: 99%

Reappraisal of Peak Shape Method Based on Average Geometrical Symmetry Factor and Its Application to Thermoluminescence Glow Curves

Kundu¹,

Chakrabarty²,

Bhattacharyya³

et al. 2021

Physica Status Solidi (b)

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Investigation of radiation response on pure silica large core fibers at low dose levels

Zhang

Zhao

et al. 2023

Nuclear Instruments and Methods in Physics Research Section A:

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Three-Point Area Method for Thermoluminescence Glow Curve Analysis and Its Application to the Glow Peak of K2srp2o7:pr

Kundu¹,

Bhattacharyya²,

Karmakar³

et al. 2021

Radiation Protection Dosimetry

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A method has been proposed to evaluate the kinetic parameters, viz. activation energy ($E$) and order of kinetics ($b$) from a single or isolated thermoluminescence (TL) glow peak. Along with the area under the entire curve, this method uses a set of three arbitrary data points and calculates the partial area under the curve from each point to the endpoint. In this way, the entire information associated with the curve is used and the method is named as ‘Three-Point Area’ (TPA) method. We have applied it successfully on a number of theoretically simulated TL curves generated in One Trap One Recombination centre (OTOR) model and General-Order Kinetics (GOK) model under quasi-equilibrium approximations with linear heating scheme. The activation energies are found in good agreement with input values for both the models. For OTOR model, temperature average of order of kinetics is estimated to compare with the present result. Systematic analysis is carried out for estimation of errors inherent in the method in the purview of GOK model. A closer look on the results reveals that any set of three points, preferably chosen from the rising side of the curve, can yield activation energy and order of kinetics. The validity of the method to extract $E$ and $b$ from experimental glow curves is exemplified by considering experimental TL data reported in literature. Finally, a complete study starting from the synthesis of a new phosphor $\mathrm{K_2SrP_2O_7:Pr} $ and analysis of the recorded TL data to estimate $E$ and $b$ employing the TPA method has been reported.

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Measurement of dose distribution from a crookes tube using thermoluminescent dosimeter

Cited by 4 publications

References 3 publications

Reappraisal of Peak Shape Method Based on Average Geometrical Symmetry Factor and Its Application to Thermoluminescence Glow Curves

Reappraisal of Peak Shape Method Based on Average Geometrical Symmetry Factor and Its Application to Thermoluminescence Glow Curves

Investigation of radiation response on pure silica large core fibers at low dose levels

Three-Point Area Method for Thermoluminescence Glow Curve Analysis and Its Application to the Glow Peak of K2srp2o7:pr

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