Non-destructive testing in nuclear applications

Non-destructive testing (NDT) in nuclear applications is an indispensable tool for monitoring quality during production and for verifying the integrity of pressure-bearing components during operation.

Knowledge about the performance capacity of the NDT system is one crucial element here. Before a testing system can be used in Swiss nuclear facilities, it must first be qualified, including with ‘blind’ test pieces.

The NDT laboratory supports the Swiss NDT qualification body in these qualification projects by ‘fingerprinting’ the test pieces. The NDT laboratory also uses CIVA modelling and simulation software to interpret signals, design NDT systems and assess technical justifications. In addition, the NDT laboratory is involved in research projects in Europe and beyond, including working on developing new testing techniques and expanding current knowledge of the factors that impact performance. Another focus for the NDT laboratory is establishing the necessary framework conditions for testing concrete structures in nuclear facilities (cooling towers, containment) in the form of reliable and efficient testing systems, standards and training of construction-related NDT personnel.