In response to the technical and scientific needs emerged recently in this area, the Working Group of External Events (WGEV) and the Working Group on Risk Assessment (WGRISK) initiated a joint task entitled Combinations of External Hazards – Hazard and Impact Assessment and Probabilistic Safety Analysis (PSA) for Nuclear Installations. This task addresses practices in member countries in considering combinations of external hazards in the design, operation, and safety assessment of nuclear installations. The first phase of the activity was a survey sent to the members of WGEV and WGRISK in order to develop an informed understanding of the regulatory requirements and the technical approaches regarding the treatment of combined external hazards, characterising integrated hazard impacts and performing PSA for combined external hazards.
The second phase of the task will be a workshop where subject matter experts will discuss the nature of combined hazards, hazards impact assessment, and PSA for combined hazards to gain more detailed insights and to draw further conclusions on the topic.
The workshop is expected to help identify and characterise important hazard combinations, analyse the state-of-the-art in assessing the integrated impacts of hazard combinations, as well as in developing PSA for hazard combinations. The workshop discussions will also support the identification of further research and development needs and potential for improvements in the safety assessment of nuclear installations for combined external hazards including PSA in particular.
The focus of the workshop is on exchanging information on the various workshop topics addressing commonalities, key differences and challenges in the safety assessment of nuclear power plants for external hazards. The workshop will provide a forum for discussions and for sharing ideas between nuclear safety professionals including specialists in external hazards and PSA.
The workshop will include plenary and technical sessions in addition to a facilitated wrap-up session. Active participation of the workshop attendees in the discussions as well as formulating conclusions and recommendations is highly appreciated. Information obtained as a result of the workshop will provide a better understanding and improved interpretations of subjects, topics and issues related to safety assessment of nuclear power plants for external hazards.
A joint WGEV-WGRISK report (workshop proceedings with summarised results and some conclusions and recommendations for follow-up activities) will be prepared on the basis of the information presented and discussed during the workshop.
Presentations addressing all issues and topics related to safety assessment of nuclear power plants for external hazards are requested.
The following topics are planned to be addressed at the workshop:
Deadline for abstracts submission
26 May 2023
Notification of accepted presentations
16 June 2023
Deadline for attendance registration
14 July 2023
Deadline for presentation submission
28 August 2023
The workshop is open to participants from the OECD and NEA member countries.
The workshop will be hosted by the Institut de Radioprotection et de Sûreté Nucléaire (IRSN) in Fontenay-aux-Roses, France. Fontenay-aux-Roses can be easily reached from Paris by metro and bus.
31 avenue de la Division Leclerc
On arrival, you must register at the IRSN Reception desk and give your passport or identity card to obtain a visitor's badge. The badge should be returned at the same place and you will get back your passport or your identity card. You can keep the badge for the 3 days or obtain a badge each day at the same place. For registration, you must fill in the information required by 14th July 2023 using the registration form. Please arrive well in advance of the start of your meeting to allow sufficient time for the registration formalities. For security reasons, you are requested to wear your visitor's badge at all times.
Paris Orly Airport:
at 18 km
Paris Roissy Charles de Gaulle Airport:
at 40 km
From Paris/Porte de Châtillon:
take D906 direction CLAMART/VERSAILLES. After 4 km, you arrive at Place de la Divison Leclerc.
take highway A86, Exit CLAMART PARIS PORTE DE CHÂTILLON. Take D906, after 3 km, you arrive at Place de la Division Leclerc.
RER B (Charles de Gaulle/Robinson):
Then Bus 394: stop DIVISION LECLERC.
RER C (Versailles Chantier/Massy Palaiseau):
Then Bus 394: stop DIVISION LECLERC.
Station PORTE D’ORLEANS. Bus 388 or 194 Stop CHÂTILLON/MONTROUGE.
Then Tramway T6, Stop DIVISION LECLERC.
Then Tramway T6, stop DIVISION LECLERC
Participants have to make their own hotel reservations.