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- Title
Estimation of linear and mass attenuation coefficients of soy–lignin bonded Rhizophora spp. particleboard as a potential phantom material using caesium-137 and cobalt-60.
- Authors
Zuber, Siti Hajar; Abdul Hadi, Muhammad Fahmi Rizal; Hashikin, Nurul Ab. Aziz; Yusof, Mohd Fahmi Mohd; Aziz, Mohd Zahri Abdul; Hashim, Rokiah; Oluwafemi, Samson Damilola; Isa, Norriza Mohd
- Abstract
In this study, linear and mass attenuation coefficients of fabricated particleboards intended for use as phantom material were estimated using 137Cs and 60Co radiation sources. Particleboards made of Rhizophora spp. wood trunk bonded with soy flour and lignin were fabricated at a target density of 1.0 g cm−3, with and without gloss finish coating. Elemental composition of the particleboards was obtained by means of energy dispersive X-ray (EDX) spectroscopy. Experimental setups were simulated via the GATE Monte Carlo (MC) package, with particle histories of 1 × 106–1 × 107. Linear and mass attenuation coefficients obtained from measurements and GATE simulations were compared and discussed. The percentage differences between the measured and simulated linear and mass attenuation coefficients of the samples were reasonably small (2.05–4.88% for 137Cs and 3.24–5.38% for 60Co). It is shown that all the particleboards have the potential to be used as phantom materials as the attenuation coefficients measured were in good agreement with those of water (calculated with XCOM) and with those simulated with the GATE toolkit. The use of gloss finish coating also did not show any significant effect on the attenuation coefficient of the phantom material. Verification of experimental results via GATE simulations has been shown crucial in providing reliable data for energy transmission studies. Based on the results achieved in this study, it is concluded that the studied material—Rhizophora spp. wood trunk bonded with soy flour and lignin including gloss finish coating—can be used in radiation dosimetry studies.
- Subjects
MASS attenuation coefficients; ATTENUATION coefficients; LIGNINS; RADIATION dosimetry; PARTICLE board; SOY flour; RHIZOPHORA
- Publication
Radiation & Environmental Biophysics, 2022, Vol 61, Issue 3, p435
- ISSN
0301-634X
- Publication type
Article
- DOI
10.1007/s00411-022-00978-2