en Radiation Biology Radiation Biology تحقيق بديع Original Research <div style="text-align: justify;">Background: The present study aims to investigate and characterize radiation dosimetric phantom that is made from Rhizophora spp. particleboards using SPC/NaOH/IA-PAE adhesive. Materials and Methods: Modification of soy protein concentrate (SPC) bonded Rhizophora spp. particleboard phantoms were carried out using sodium hydroxide (NaOH) with different amount of bio-based cross-linking agent (IA-PAE) with three different categories of particle size. The radiation attenuation parameters were evaluated with photons energies between 16.59 and 25.26 keV derived from X-ray fluorescence. SPC-based plug phantoms were scanned together with the CT density phantom 062M at 80, 120, and 135 kVp, and 250 mAs. Results: The physical and mechanical properties were found to be improved, while the dimensional stability was decreased through the addition of 15 wt% IA-PAE with decreasing particle size. The lowest HVL and MFP, and the highest &mu;_m with their corresponding values of Z_e_&fnof;&fnof; &nbsp;(p-values of 0.054, 0.055, 0.060, and 0.075), and the relatively low X² values are the characteristics of samples labeled as A₁₅, B₁₅, C₁₀, and C₁₅. Sample C₁₅ gave the closest values of CT number, ED, and DDPs to water for all tested tube voltages. Conclusion: The results point to the possibility of employing C₁₅ as a promising TEPM.</div> Computed tomography system, RAPs, SPC, rhizophora spp., phantom material. 801 811 http://ijrr.com/browse.php?a_code=A-10-1-869&slc_lang=en&sid=1 D.O. Samson saamdoftt82@gmail.com 7900319475328460020367 7900319475328460020367 Yes School of Physics, Universiti Sains Malaysia, 11800 Penang, Malaysia A. Shukri 7900319475328460020368 7900319475328460020368 No School of Physics, Universiti Sains Malaysia, 11800 Penang, Malaysia M.Z. Mat Jafri mjafri@usm.my 7900319475328460020369 7900319475328460020369 No School of Physics, Universiti Sains Malaysia, 11800 Penang, Malaysia R. Hashim 7900319475328460020370 7900319475328460020370 No School of Industrial Technology, Universiti Sains Malaysia, 11800 Penang, Malaysia M.Z.A. Aziz 7900319475328460020371 7900319475328460020371 No Advanced Medical and Dental Institute, Universiti Sains Malaysia, 13200 Bertam, Penang, Malaysia M.F.M. Yusof 7900319475328460020372 7900319475328460020372 No School of Health Sciences, Universiti Sains Malaysia, 16150 Kota Bharu, Kelantan, Malaysia