Abstract Exposure to gamma-rays is hazardous for humans and other living beings because of their high penetration through the materials. For this reason, shielding materials (usually lead, copper and stainless steel) are used to protect against gamma rays. This study's objective was to prepare ceramic materials for gamma radiation shielding by using different natural bentonite clays. Gamma-ray attenuation performances of the prepared shielding materials at different thicknesses were investigated and evaluated for different gamma-ray energies from different standard point gamma radiation sources (251Am, 57Co, 137Cs, 60Co, and 88Y). The mass and linear attenuation coefficients of the prepared ceramics vary between 0.238 and 0.443 cm2·g-1 and between 0.479 and 1.06 cm-1, respectively, depending on their thicknesses. Results showed that these materials could be prioritized because of their evidential properties of gamma radiation protection in radiation applications.

中文翻译：

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从伽马射线屏蔽角度看膨润土基陶瓷材料的制备、表征和性能评价

摘要 伽马射线对人类和其他生物的危害很大，因为它们对材料的渗透率很高。出于这个原因，屏蔽材料（通常是铅、铜和不锈钢）用于防止伽马射线。本研究的目的是通过使用不同的天然膨润土来制备用于伽马辐射屏蔽的陶瓷材料。针对不同标准点伽马辐射源（251Am、57Co、137Cs、60Co和88Y）的不同伽马射线能量，研究和评估了制备的屏蔽材料在不同厚度下的伽马射线衰减性能。制备的陶瓷的质量和线性衰减系数分别在 0.238 和 0.443 cm2·g-1 之间以及 0.479 和 1.06 cm-1 之间变化，具体取决于它们的厚度。