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<p>The present study reports the petrographical analysis and trap parameter calculation of γ-ray-irradiated limestone sample collected from the Rasmada mines of Chhattisgarh Basin. A limestone sample was collected and preannealed before irradiation and recording of the thermoluminescence (TL) glow curve. The collected limestone sample was then characterized by X-ray diffraction, scanning electron microscopy (SEM), and TL glow curve analysis. The lime-stone sample revealed a cubic structure and its corresponding planes were calculated. SEM images showed a sound morphology and particle-size distribution above the microlevel. The TL glow curve was recorded for various doses of γ-rays from 0.5 to 2 kGy, and the dual peaks were decomposed with a single intense glow curve. The corresponding trap parameters were calculated using a computerized glow curve deconvolution technique. The findings suggest that the investigated limestone sample holds potential for application in gamma radiation dosimetry.</p>

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Structural and Thermoluminescence Investigations on γ-Ray-Irradiated Limestone Sample

  • 期刊论文

  • 发表日期：

    2025年11月5日

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  • M. K. Pandey,
  • P. K. Ghosh,
  • R. K. Mishra,
  • Vikas Dubey,
  • T. Anil Kumar,
  • P. Jayaprada,
  • Bhuvan Tej Mandava,
  • Ravindranadh Koutavarapu,
  • M. C. Rao

摘要

The present study reports the petrographical analysis and trap parameter calculation of γ-ray-irradiated limestone sample collected from the Rasmada mines of Chhattisgarh Basin. A limestone sample was collected and preannealed before irradiation and recording of the thermoluminescence (TL) glow curve. The collected limestone sample was then characterized by X-ray diffraction, scanning electron microscopy (SEM), and TL glow curve analysis. The lime-stone sample revealed a cubic structure and its corresponding planes were calculated. SEM images showed a sound morphology and particle-size distribution above the microlevel. The TL glow curve was recorded for various doses of γ-rays from 0.5 to 2 kGy, and the dual peaks were decomposed with a single intense glow curve. The corresponding trap parameters were calculated using a computerized glow curve deconvolution technique. The findings suggest that the investigated limestone sample holds potential for application in gamma radiation dosimetry.