Almugren, K.S. and S.F. Abdul, Sani and Irzwan Affendy, sulong and S.N. Mat, Nawi and A.S. Siti, Shafiqah and Bradley, D.A. * (2022) Structural and defect changes in black carbon charcoal irradiated with gamma ray. Radiation Physics and Chemistry, 200. ISSN 0969-806X
Full text not available from this repository. (Request a copy)Abstract
This study investigates the use of black carbon charcoal as passive radiation dosimetry, offering low dependence on photon energy and near soft tissue effective atomic number with state-of-the-art techniques. Regression analyses have now been conducted using graphite manufactured commercially in the form of charcoal from three different types: mangrove, coconut, and green charcoal recycled from sawdust, working with photon-mediated interactions at radiotherapy dose levels. Explorations of changes in Raman spectroscopic characteristics, and photoluminescence dose dependence have been performed with a focus on the relationship between absorbed radiation energy and induced material changes, using a 60Co gamma-ray source doses ranging from 0 to 10 Gy. Raman spectroscopy has established to be an effective method for exploring defects in carbon-based materials due to its high sensitivity, most commonly focusing on the use of ID/IG parameter. While photoluminescence analysis will provide information on electronic properties and the band gap energy. The crystal structure of the black charcoal samples was characterised using X-ray diffractometry, with the goal of determining the degree of structural order, atomic spacing, and lattice constants of the various irradiated charcoal samples, supported by crystallite size assessments. The findings of this study could pave the way for a low-cost yet highly effective system for studying radiation-induced changes in carbon, as well as offering a viable alternative to current commercial dosimeters, well suited to applications in radiotherapy.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | charcoal; gamma irradiation; raman spectroscopy; photoluminescence spectroscopy; X-ray diffraction; |
| Subjects: | Q Science > QC Physics |
| Divisions: | Others > Non Sunway Academics Sunway University > School of Engineering and Technology [formerly School of Science and Technology until 2020] > Research Centre for Applied Physics and Radiation Technologies [merged with Centre for Carbon Dioxide Capture and Utilization wef December 2023] |
| Depositing User: | Ms Yong Yee Chan |
| Related URLs: | |
| Date Deposited: | 02 Aug 2024 01:50 |
| Last Modified: | 02 Aug 2024 01:50 |
| URI: | http://eprints.sunway.edu.my/id/eprint/2944 |
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