Starts 26 Apr 2021
Ends 30 Apr 2021
Central European Time
Online -
An ICTP-IAEA Virtual Meeting

The course programme covers scientific topics of direct relevance to the physical, chemical and radiological phenomena occurring during progression of severe accidents in Water Cooled Reactors, including an overview of past events and advanced technologies designed to cope with such events.
The course aims at building a comprehensive understanding of the complex phenomena associated with progression of severe accidents in WCRs and their consequences. Knowledge transfer will be facilitated between the international expert lecturers and the young nuclear professional and engineer participants through online discussions aiming at a comprehensive understanding of the physical, chemical and radiological phenomena specific to severe accidents in WCRs. Relevant nuclear safety principles, recent advancements in scientific methods, approaches and simulation tools to assess the interrelated phenomena during different phases of severe accident progression, and the role of technologies designed to prevent progression of, and mitigate consequences from, such accidents in WCRs will be presented.
  • Physics of Water Cooled Power Reactors
  • Nuclear Safety and IAEA Safety Standards for Water Cooled Power Reactors
Phenomenology in Severe Accident Progression:
  • Nuclear Fuel Degradation
  • Relocation of Melted Fuel
  • In-Vessel Melt Retention
  • Reactor Vessel Failure Mechanisms
  • Ex-Vessel Corium Cooling
  • Early-Phase Containment Failure
  • Late-Phase Containment Failure
  • Physics and Chemistry of Source Term
  • Fission Products Behaviour and Transport
  • Hydrogen Generation, Transport and Explosion
  • Numerical Simulations of Severe Accident Phenomena
Phenomenology of Technological Challenges in Propagation of Severe Accidents and Mitigation of their Consequences:
  • Containment Pressure Venting
  • Prevention of Hydrogen Explosions
  • Severe Accident Management

Registration: There is no registration fee.
**DEADLINE: 05/04/2021**


Alexei Miassoedov (IAEA), Simone Massara (IAEA), Local Organiser: Nadia Binggeli