Article ID: J24.003
Reinforced concrete is generally used as a shielding wall for radiation facilities where γ- and X-rays are generated. The shielding effect should be varied by changing the diameter and pitch (spacing) of the reinforcing bars (rebars) in the reinforced concrete, as well as the radiation energy. We simulated the leakage radiation dose from the concrete with and without rebars. The radiation was consisted of γ- and X-rays emitted from a plane source. The shielding effect was evaluated by the ratio (decrease ratio) of the leakage radiation dose of the reinforced concrete to the dose of the concrete without rebars. The decrease ratio decreased linearly as the diameter of the rebars increased and increased exponentially as the γ-ray energy increased.
