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Rhyolite as a Naturally Sustainable Thermoluminescence Material for Dose Assessment Applications

Author

Listed:
  • Elsayed Salama

    (Basic Science Department, Faculty of Engineering, The British University in Egypt (BUE), El-Shorouk City 11837, Egypt)

  • Dalal A. Aloraini

    (Physics Department, College of Science, Princess Nourah bint Abdulrahman University (PNU), Riyadh 11671, Saudi Arabia)

  • Sara A. El-Khateeb

    (Nuclear Medicine Technology Department, Inaya Medical Colleges, Riyadh 11352, Saudi Arabia)

  • Mohamed Moustafa

    (Department of Physics, School of Science and Engineering, The American University in Cairo (AUC), New Cairo 11835, Egypt)

Abstract

Thermoluminescence characteristics of natural rhyolite have been studied. Dose response at a wide dose range of 0.5–2000 Gy has been determined. Minimum detectable dose and thermal fading rate are evaluated. Glow curve deconvolution is conducted after determining the best read-out conditions. The repeated initial rise (RIR) method is used to detect the overlapping peaks, and a glow curve deconvolution procedure is used to extract the thermoluminescence parameters of rhyolite. According to the findings, rhyolite glow curves show five interfering peaks corresponding to five electron trap levels at 142, 176, 221, 298, and 355 °C, respectively, at a heating rate of 3 °C/s. The obtained kinetic order for the deconvoluted peaks showed mixed-order kinetic. The reported results might be useful to introduce rhyolite as a natural sustainable material for radiation dosimetry applications.

Suggested Citation

  • Elsayed Salama & Dalal A. Aloraini & Sara A. El-Khateeb & Mohamed Moustafa, 2022. "Rhyolite as a Naturally Sustainable Thermoluminescence Material for Dose Assessment Applications," Sustainability, MDPI, vol. 14(11), pages 1-13, June.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:11:p:6918-:d:832460
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