Equivalent Thicknesses of Lead and Fly ash Geopolymer with Addition of Barium Sulphate in Radiation Protection

Abstract

This study aims to fabricate radiation protection shields using fly ash with barium Sulphate. Different thickness of fly ash geopolymer with 15% of barium sulphate was constructed, and different energies of X-ray ranged from 80 kVp 120 kVp were used to assessment the attenuation ability of Lead and fly ash geopolymer with barium Sulphate shields. Different thicknesses of fly ash based shields are investigated to determine the equivalent thicknesses of fly ash geopolymer with barium sulphate which provide the same attenuation by Lead shields. The results exhibited that 5 cm of fly ash geopolymer with barium Sulphate equivalent 1 mm of Lead in attenuating of incident X-ray. Whereas 1 cm of fly ash geopolymer with barium sulphate equivalent 0.25 mm of Lead shield at various X-ray energy (80 kVp -120 kVp).