Investigation of various concrete compositions with respect to gamma-radiation transmission properties of Cs-137

摘要

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.