Updated Modeling of Postulated Accident Scenarios in ITER

This paper gives an overview of the latest work on ITER accident analysis, describing the methodology and presenting some updated results. There are currently 25 ITER Reference Events, divided into two categories: incidents and accidents. Starting from the 2001 list of events, several new scenarios have been added, including fire events. Other former Reference Events have been updated and in some cases fully re-analyzed due to design modifications, such as changes in the confinement arrangements. The results demonstrate that the ITER General Safety Objectives are met and that the safety features of the ITER design are successful in minimizing the potential public and environmental consequences of off-normal events.