Trap creation, trap conversion and thermoluminescence process in barite – effect of flux

Gopal, J. Nandha; Sanyal, Bhaskar; Lakshmanan, A.

doi:10.1080/10420150.2019.1668389

Cited by 2 publications

(1 citation statement)

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“…[ 14,15 ] TL techniques could be an interesting area of research to measure higher doses incurred during various radiation processing applications, such as food irradiation, [ 16,17 ] radiotherapy, [ 2,3 ] and medical product sterilization. [ 18,19 ] Rare‐earth‐activated barites (BaSO 4 ), as well as naturally occurring barites are interesting systems that could have properties helpful for different dosimetric applications, [ 20–24 ] however there have been very few TL studies on naturally occurring barites.…”

Section: Introductionmentioning

confidence: 99%

Investigation of thermoluminescence response and trapping parameters of natural barite samples from Dongargaon mine, India

et al. 2020

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Dosimetry is a technique that quantitatively measures the ionizing radiation absorbed by matter. The present study was conducted on the barites from a mine at Dongargaon in Central India. Morphological and structural analysis of proposed sample was carried out using X‐ray diffraction and standard error of the mean. Thermal analysis and chemical composition of the proposed sample were carried out using thermogravimetric analysis and differential thermal analysis, and electron probe microanalysis. Thermoluminescence (TL) studies on a natural barite sample were performed using a Nucleonix TL1009I TL reader following sample irradiation with γ‐rays generated from a 60Co irradiation source. A broad TL glow curve was observed after TL study that was then deconvoluted using TLanal deconvolution software. Trapping parameters from the sample such as activation energy (E), order of kinetics (b), and frequency factor (s) were calculated using Chen’s peak shape method, the initial rise method, and Ilich’s method. The results indicated that the natural barite sample could be used in high‐dose TL dosimetric applications in various fields.

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