Ringhals Diagnostics and Monitoring, Annual Research Report 2022-2023

Report, 2023

This report gives an account of the work performed by the Division of Subatomic, High Energy and Plasma Physics (formerly, Division of Nuclear Engineering), Chalmers, in the frame of a research collaboration with Ringhals, Vattenfall AB, contract No. 4501756928-062. The contract constitutes a one-year co-operative research work concerning diagnostics and monitoring of the PWR units. The work in the contract has been performed between 1 July 2022 and 30 June 2023. During this period, we worked with one single item, namely with the analysis of in-core measurements with wavelet techniques, to detect and quantify thimble tube vibrations. The work was performed by Imre Pázsit (project leader at Chalmers), Victor Dykin and Henrik Nylén, the latter being the contact person at Ringhals.