IAEA RECENT ACTIVITIES TO CREATE A DATABASE ON ASSESSMENT, MONITORING AND SURVEILLANCE OF RESEARCH REACTOR'S CORE STRUCTURAL MATERIALS AGEING

摘要

Following the international crisis due a severe shortage of Mo-99 and the increasing concern regarding the ageing RRs, the IAEA launched a multiannual on-going programme to create an international Database on Assessment, Monitoring and Surveillance on ageing of core structure components materials, recognizing that archived data is unavailable for the Member States (MS). The paper presents the details of this programme, including an overview of the content and conclusions of past activities, as well as near future projected endeavours. The first recent activity was a Consultancy meeting (CS) conducted in INL (USA) on June 2009, with the topic of Assessment of Core Structural Materials Surveillance Programme of RRs. That meeting was followed by a Technical Meeting (TM), with the identical title, hosted by the Agency on June 2010. Following the TM a TECDOC publication was prepared, including and analysing nineteen (19) contributed papers. Then after, upon the recommendation of the TM, a second CS will be organized on October 2011, with the topic of Integrity Assessment of Research Reactor Core Components for Lifetime Extensions: Process, Status and Future perspective. This meeting will determine the scope and format of a multi-annual Coordinated Research Programme (CRP), including recommendations for the methodology and Database concept to the assessment of RR core structural materials for lifetime evaluation and extension. Furthermore, it is expected from the experts to identify key MS contributors to the CRP on the same topic, to be initiated in 2012.