Abstract We investigated different concrete samples with respect to their gamma-radiation transmission properties of Cs-137. From results of gamma-spectroscopic measurements, respective half-value layers are presented for ordinary, hematite, and barite concrete. The outcomes are compared to literature values. In addition, CT scans were performed and analyzed to reveal structural impacts on shielding properties. Finally, Monte-Carlo simulations were performed to examine the reliability of theoretical predictions. As a result, precise specification of the concrete composition is essential to simulate shielding designs of new facilities, as accurate theoretical predictions are necessary to avoid excessive costs due to oversizing or rework.

中文翻译：

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研究各种混凝土成分对 Cs-137 的伽马辐射透射性能

摘要 我们研究了不同混凝土样品的 Cs-137 的伽马辐射传输特性。根据伽马光谱测量的结果，给出了普通混凝土、赤铁矿混凝土和重晶石混凝土各自的半值层。将结果与文献值进行比较。此外，还进行了 CT 扫描并进行了分析，以揭示结构对屏蔽性能的影响。最后，进行了蒙特卡罗模拟以检验理论预测的可靠性。因此，混凝土成分的精确规格对于模拟新设施的屏蔽设计至关重要，因为需要准确的理论预测以避免因尺寸过大或返工而导致成本过高。