Muslima, Umme and Khandaker, Mayeen Uddin * and Lam, Siok Ee * and Mat Nawi, S. N. and Abdul Sani, S.F. and Bradley, D.A. * and Ung, N.M. and Mahmoud, Mustafa and Saidur, Rahman * and Woo, H. J. (2025) Thermoluminescence and structural characterization of Biochar in the photon doses of 2-20 Gy for dosimetric applications. Radiation Physics and Chemistry, 227. pp. 1-12. ISSN 0969-806X
Full text not available from this repository. (Request a copy)Abstract
The present study aims to develop a thermoluminescence (TL) material for dosimeter that might potentially surpass the performance of passive dosimeters that are currently available. The study focuses on the essential TL characteristics of biochar that is rich in carbon. The main thermoluminescence (TL) dosimetric properties of commercially available biochar under exposure to X-ray photon beams from Linac at doses ranging from 2 Gy to 20 Gy have been examined. These properties include dose response, sensitivity, TL glow curve, energy dependency, and fading. It has been demonstrated that the biochar provides an excellent linear response in the dose range under study and sensitive at lower dose. The biochar sample demonstrated great reproducibility, with a standard variation of less than 3%. Furthermore, a fading study was conducted and a minimum rate of fading for ambient light and dark room circumstances was discovered. The dose-dependent microstructural degradation of biochar is confirmed by SEM/EDX analysis. The structural changes caused by the radiation doses are being monitored using Raman spectra and X-ray diffraction (XRD). The kinetic parameters analysis also confirms the structural alteration brought by photon irradiation. As a result, biochar demonstrates the significant potential to be used in dosimetric applications.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Carbonaceous-biochar; TL properties; kinetic parameters; photon irradiation; raman spectra analysis; X-ray diffraction |
| Subjects: | Q Science > QC Physics T Technology > TP Chemical technology |
| Divisions: | Sunway University > Faculty of Engineering and Technology [formerly School of Engineering and Technology until 14 November 2025; School of Science and Technology until 2020] > Research Centre for Nano-Materials and Energy Technology |
| Depositing User: | Ms Yong Yee Chan |
| Related URLs: | |
| Date Deposited: | 27 Apr 2026 05:58 |
| Last Modified: | 27 Apr 2026 05:58 |
| URI: | http://repository.sunway.edu.my/id/eprint/3327 |
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