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The mass attenuation coefficients of several water equivalent phantom materials and fabricated Rhizophora spp. particleboards were measured using Compton scattering technique of Ludlum configuration. The scattered gamma energies were calculated at 30, 45, 60 and 75°. The measured mass attenuation coefficients of the samples were compared to their theoretical values using XCOM calculation soft ware and the XCOM values of water as standard phantom material for high energy photons. The results showed that the measured mass attenuation coefficients of solid water and fabricated Rhizophora spp. particleboards were in good agreement to their respective theoretical values with p -value of 0.2411 and 0.934. A comparison to the XCOM value of water also showed that all experimented values of the water equivalent phantoms were in good agreement to water with p -values between 0.055 and 1. The results had indicated the suitability of the Ludlum configuration to be used for the measurement of mass attenuation coefficients using Compton scattering technique.

imaging and radiation research

Mass attenuation coefficients of several water equivalent phantom materials by using Compton scattering technique in comparison to the theoretical XCOM values