PACTITER-OSCAR comparison in ACPs determination for the ITER WCLL-TBS Water Cooling System

The formation, transport and deposition of ACPs is a complex process that involves many different physical mechanisms and conditions: water chemistry, thermal hydraulics, materials corrosion properties, neutron irradiation history and operational scenario. In the framework of the EUROfusion Work Package "Safety and Environment" (WPSAE), the PACTITER v2.1 and OSCAR-Fusion v1.3 codes have been compared in order to identify the most effective tool for the assessment of the Activated Corrosion Products (ACPs) in the WCLL-TBM Water Cooling System. The work presents the results of the analysis and discusses the advantages and the limitations of the two codes to identify the most suitable tool for future ACPs assessments.