RT - Journal Article T1 - Study of gamma rays shielding parameters of some building materials used in Sudan JF - Int-J-Radiat-Res YR - 2021 JO - Int-J-Radiat-Res VO - 19 IS - 1 UR - http://ijrr.com/article-1-3473-en.html SP - 191 EP - 196 K1 - γ-radiation K1 - attenuation coefficient K1 - half value layer K1 - shielding K1 - building materials. AB - Background: This study investigated the γ-rays shielding properties of some building materials in Sudan has been investigated. Materials and Methods: Photons attenuation coefficients and half value layer (HVL) were experimented using Cs-137 and Co-60 sources. The measurements were performed to gauge the intensity of radiation when performed unshielded, the specific thickness of selected samples was examined, using an ion chamber placed at 2 meters from Cs-137 and Co-60. Results: The results indicated that the linear attenuation coefficient (µ) possesses a linear relationship with the corresponding densities of the samples studied and inversely with photon energy. HVL was directly proportional with photon energy. Conclusion: As a result of this evaluation the study concluded that selected samples were suitable as shielding material for gamma radiation in Sudanese laboratories. LA eng UL http://ijrr.com/article-1-3473-en.html M3 10.29252/ijrr.19.1.191 ER -